Chemical Composition of 

Sedimentary Rocks in 

Alaska, Idaho, Oregon, 

and Washington

GEOLOGICAL SURVEY PROFESSIONAL PAPER 771

Chemical Composition of 

Sedimentary Rocks in 

Alaska, Idaho, Oregon, 

and Washington

Compiled by THELMA P. HILL and MARIAN A. WERNER

GEOLOGICAL SURVEY PROFESSIONAL PAPER 771

A compilation of 5,411 analyses 

published before 1965

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1972
UNITED STATES DEPARTMENT OF THE INTERIOR 

ROGERS C. B. MORTON, Secretary

GEOLOGICAL SURVEY 

V. E. McKelvey, Director

Library of Congress catalog-card No. 72-600288

For sale by the Superintendent of Documents, U.S. Government Printing Office

Washington, D.C. 20402 - Price $4.50 (paper cover)

Stock Number 2401-00254
IV CONTENTS

TABLES

Page

TABLES 1-6. Analyses of samples from Alaska, Idaho, Oregon, and Washington:

1. Samples containing more than 75 percent uncombined silica (group A)....................... ....................... 8

2. Samples containing uncombined silica and clay, each less than 75 percent; uncombined silica and

clay, each greater than carbonate (group B)....................................................................................... 12

3. Samples containing uncombined silica and carbonate, each less than 75 percent; uncombined silica

and carbonate each greater than clay (group C)................................................................................. 36

4. Samples containing more than 75 percent clay (group D)..................................................................... 45

5. Samples containing clay and carbonate, each less than 75 percent; clay and carbonate, each greater than uncombined silica (group E)......................................................................................................... 60

6. Samples containing 75-90 percent carbonate (group FI)......................................................................... 66

7-10. Analyses of samples, by States, containing more than 90 percent carbonate (group FS), common-rock 

category:

7. Alaska................--.-...-..---.-..--..-.--..-..--......................-.-.^^ 90

8. Idaho.....................-.....-....-................-......................^ 118

9. Oregon...................................................................................................................................................................... 124

10. Washington...............................................................-.-..-.......-..-----...------.-..--.....-.......^^ 130

11, 12. Analyses of clays in which (2.178xAl20a) +H20 (however determined) is 50 percent or more of the 

sample (group Hk), special-rock category, by State and group:

11. Idaho, Oregon, and Washington (group Hk)................................................................................................ 203

12. Washington (group Hki)..................................................................................................................................... 209

13-16. Analyses of clays in which Alo03+Si02+H20 (however determined) is 50 percent or more of the sample, 

special-rock category; by State and group:

13. Alaska, Oregon, and Washington (group Ha) ............................................................................................. 210

14. Oregon and Washington (group Hai)............................................................................................................. 215

15. Oregon (group Hb)................................................................................................................................................. 216

16. Oregon and Washington (group Hbi)............................................................................................................. 217

17-22. Analyses of samples other than clays, special-rock category; by States, type, and group:

17. Alaska, Oregon, and Washington, iron-rich rocks, most of which contain 50 percent or more of

ferrous oxide or ferric oxide (group Fe) .......................................................................................... 220

18. Alaska, Idaho, Oregon, and Washington, manganese-bearing rocks (group Mn)................................. 226

19. Idaho and Washington, rocks, most of which contain 50 percent or more gypsum, gypsite, or anhydrite (group G)......................................................................................................................................... 229

20. Idaho, Oregon, and Washington, rocks containing 50 percent or more miscellaneous chlorite-,

sulfate-, carbonate-, and nitrate-bearing material (group S)........................................................... 230

21. Idaho, phosphate rock or nodules containing 21.1 percent or more PzOs (group P).......... .............. 234

22. Alaska, Idaho, Oregon, and Washington, coal and coal ash, oil shale and oil-shale ash, diatomaceous sediment, minerals, and parent rock and weathered products; miscellaneous group 

(group M).........................................................-.... .....-............... ................................................................ 256

23. Number of samples of various rock types in the classification groups A-F2J common- and mixed-rock

categories.-------..-..... .......................................................................................................... ........ . ..... 286

24. Number of samples of various rock types in the special-rock category...----........----....... ............................. 287

25. Distribution of samples by State, category, and group............... ........................................................................ 288

26. Distribution of 5,411 samples by State, category, and group---.......................... .................................................. 288

27. Distribution of samples by State, age, stratigraphic unit, quadrangle or county, and classification group..... 298
CONTENTS

	Page

Abstract. . ......... ............................................................... 1

General information................................................................ 1

Groups, class, and categories . . 1

Analyses...... . .... . ..... .......... 3

Types of samples... .................... ................................. 4

Analyses of samples....-.. .............................................. 4

Explanation of terms and arrangement of tables..... 5

Magnetic tape............. .. . ....... 6

Codes for permanent numbers assigned to analyses......... 6

Graphical summaries............................................................... 262

Areal distribution............................................................. 262

Distribution by composition........................................... 262

Cumulative frequency curves ...... ..> .. 289

References cited ...................................................................... 303

Page

Indexes-..-....-......-.----...-.---.-....--.- - 312

Stratigraphic names . 313

Analyses by geologic age... - 313

Rock name.....-.........---... 314

Actual and possible use...... ................................ 316

Chemical and spectrographic analyses for minor 

constituents, compounds, and radicals (oxides 

reported as elements) in rocks of the commonand mixed-rock categories. . 317

Chemical and spectrographic analyses for minor 

constituents, compounds, and radicals (oxides 

reported as elements) in rocks of the specialrock category . . . 319

ILLUSTRATIONS

	Page

FIGURE 1. Triangular diagram of composition of sedimentary rocks showing the

seven fields into which the chemical analyses are grouped 2

2. Tetrahedron showing common-, mixed-, and special-rock categories. 3

3. Map showing sample localities of rocks in Alaska. 262

4. Map showing sample localities of rocks in Idaho, Oregon, and Washington . ............................................................................ 264

5-24. Triangular diagrams showing distribution of analyses:

5. Northwestern States and Alaska, common-rock category.. . 266

6. Northwestern States and Alaska, mixed-rock category.. 267

7. Miocene and later. .................................................................... 268

8. Tertiary................................................................................................ 269

9. Jurassic .. ................................................................. 270

10. Triassic.- ...................................................................... 271

11. Permian ...... .............................................................................. 272

12. Mississippian ........................................................................ .. 273

13. Devonian................... ............ ......................... ....... 274

14. Silurian................................................................................................. 275

15. Cambrian................................................................. ................... 276

16. Precambrian...... ...... ...... ...... . ...... ............... 277

17. Chilliwack Group.................... ........................ 278

18. Clay-..-..-..................-..-...-...-................-............ . .......... 279

19. Diatomite................................... ......... ............ ................... 280

20. Dolomite................................................... .................. 281

21. Limestone....................................................................... .. 282

22. Magnesite--..--... ----.-.- .. --- .......................... 283

23. Sand and sandstone..................................-- 284

24. Tuff.........................-........-................................--.... 285

25-32. Cumulative frequency curves:

25. Group A.................................................... ............ ...................... 290

26. Group B ......--.............-..................-- .-..-- .................. 290

27. Group C .- . ..- - . . ................ 292

28. Groups D, Hk, Ha................-.............-.-....-....... 292

29. Group D...............................-........................... ............ 294

30. Group E-....-.......................................-. -...... . .. ............... 294

31. Group FI-...........-..........-................... ............... ................... 296

32. Group F2.. . .-.. .... ....... --- .- ................... 296

III
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, 

IDAHO, OREGON, AND WASHINGTON

Compiled by THELMA P. HILL and MARIAN A. WERNER

ABSTRACT

The compilation of published chemical analyses of sedimentary rocks of the United States was undertaken by the 

U.S. Geological Survey in 1952 to make available scattered 

data that are needed for a wide range of economic and 

scientific uses. About 20,000-25,000 chemical analyses of sedimentary rocks in the United States have been published. This 

report brings together 5,411 of these analyses from the 

Northwestern States including Alaska.

A magnetic tape containing the analyses and some, but not 

all, of the descriptive material, was published in 1971. (See 

"Magnetic Tape," this publication.)

The samples are arranged by (1) general lithologic character; (2) locality; and (3) geologic age, formation, and 

relative stratigraphic order. Indexes of stratigraphy, rock 

name, commercial uses, and minor elements are provided.

The analyses are classified into groups and into categories. 

The groups (A through F2) are modifications of the system 

proposed by Brian Mason in 1952 in which the main parameters are the three major components of sedimentary rocks: 

(1) uncombined silica, (2) clay (R2O3 «3SiO2 « wH2O), and 

(3) calcium-magnesium carbonate. The categories are based 

on the degree of admixture of these three major components 

with other components, such as sulfate, phosphate, and iron 

oxide. Common-rock, mixed-rock, and special-rock categories 

are defined as 85 percent or more, 50-85 percent, and less 

than 50 percent, respectively.

Maps show distribution of sample localities by States; 

triangular diagrams show the lithologic character, classification group, and geologic age; cumulative frequency curves of 

each constituent in each classification group of the commonand mixed-rock categories are also included.

The numerous analyses may not adequately represent the 

geochemical nature of the rock types and formations of the 

region because of sampling bias. Maps showing distribution 

of sample localities indicate that many of the localities are 

in areas where, for economic or other reasons, special problems attracted interest.

Most of the analyzed rocks tended to be fairly simple in 

composition mainly two-component mixtures of the three 

major components or a mixture of these and a fourth component such as phosphate, gypsum, or iron oxide.

A comparison of the analyses assembled here with rough 

estimates of the relative thickness of rock units of different 

lithologic types arfd geologic ages showed that the available 

analyses are far from equally representative of the sedimentary-rock column of the region.

GENERAL INFORMATION

The project of compiling published analyses of 

sedimentary rocks of the United States was undertaken by the U.S. Geological Survey in 1952. The 

first report, covering the States of Colorado, Kansas, 

Montana, Nebraska, North Dakota, South Dakota, 

and Wyoming, was published as U.S. Geological 

Survey Professional Paper 561 (Hill and others, 

1967). The present report covers another geographic 

area, but in most other respects is similar to the 

first report.

The classifying of the analyses into groups and 

categories was based on work done by computer. 

The cumulative frequency curves were also based 

on statistical work done by computer. The triangular 

diagrams were drawn by a computer-controlled plotter. (For analyses available on tape, see Hill, 1971, 

and Hill and Tourtelot, 1971.)

The chemical analyses of sedimentary rocks were 

taken from many publications, and as a result the 

constituents determined, as well as the methods used 

for determination, vary widely. Uniformity seemed 

desirable in presenting the analyses in this report, 

and several general rules were formulated. Although 

information concerning some of the analyses is 

probably inadequate for certain purposes, a more 

critical selection can be made by the reader. The 

chemical analyses are shown in tables 1-22.

GROUPS, CLASS, AND CATEGORIES

GROUPS

The analyses are classified into groups A through 

Fo, following a system modified from that proposed 

by Mason (1952, p. 130, 131) in which the relative 

proportions of the three major components of sedimentary rocks are utilized. These components are 

(1) uncombined silica, (2) an arbitrary clay molecule (RoOs'SSiQa'ftHoO), and (3) calcium and magnesium carbonate. When the proportions are plotted
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

on a triangular diagram, the following symmetrical 

groups can be identified :

Group Identification

A........Silica 

B........Mixed silica

and clay.

C. .Mixed silica 

and clay.

D .Clay...................

E........Mixed clay and

carbonate.

PI...... Carbonate.

Fa Carbonate.

Explanation

....Uncombined silica, 75-100 percent.

Uncombined silica and clay, each less 

than 75 percent; Uncombined silica 

and clay, each more than carbonate.

Uncombined silica and carbonate, each 

less than 75 percent; Uncombined 

silica and carbonate, each more 

than clay.

 Clay, 75-100 percent. 

Clay and carbonate, each less than 75 

percent; clay and carbonate, each 

more than uncombined silica.

 Carbonate, 75-90 percent.

 Carbonate more than 90 percent.

Group F contains a large number of analyses; 

therefore, it is divided at 90 percent. Groups A and 

D contain a smaller number of analyses; therefore, 

they are not divided. (See fig. 1.)

SiO2

(Uncombined silica)

75 percent

R203

75 percent 75 percent

3Si0 2 nH20

(Clay)

90 percent

CdCOa + MgCOa 

(Carbonate)

FIGURE 1. Diagram of composition of sedimentary rocks, 

showing the seven fields into which the chemical analyses 

are grouped.

Assignment of an analysis to a compositional 

group is determined by calculating the three components from the analysis to 100 percent. These 

calculated figures are not given in the tables of 

analyses.

CLASS

The class figures are the calculated total amounts 

of the three basic components silica, clay, and 

carbonate in weight percent. These figures are 

given in the tables for each sample and follow the 

analysis.

Samples that contained 33 percent or more calcium-magnesium carbonate were given an additional 

notation to indicate the calculated ratio of calcite 

to dolomite, as follows:

CaCOs

Notation

Calcite.. ................

Magnesian calcite......

Calcareous dolomite.. 

Dolomite... ..................

Magnesitic dolomite.. 

Dolomitic magnesite. 

Magnesite. .................

(Ca.MgJCOs 

molal ratio

0.9:1.0 

0.5:0.9 

0.1:0.5 

0 :0.1

CaO/MgO 

weight ratio

26.43 : oo 

4.173:26.43 

1.700: 4.173 

1.391: 

0.464: 

0.073:

0.0

1.700

1.391

0.464

0.073

The notation, based on the weight ratio, is given in 

the tables of analyses below the class figures.

CATEGORIES

The categories are based on the degree to which 

the three main components used to define the groups 

are admixed with other materials. The categories 

are defined by the following amounts of the three 

main components (silica, clay, and carbonate).

Percent Category

85 or more. ............. ....... Common-rock

50-85. .. - Mixed-rock

50 or less.................... . .... Special-rock

The common- and mixed-rock categories are assembled by group, State, county, and position within 

the county. The mixed-rock category is designated 

by an asterisk, both on the chemical analysis and in 

the descriptive notes on the sample (tables 1-10), 

and a brief explanation of the mineralogy is given, 

suggesting the reason that the sample falls in the 

mixed-rock category.

The special-rock category is designated according 

to the kind of material admixed with the three main 

components silica, clay, and carbonate (tables 

11-22). The numerical limits of the special-rock 

category were not strictly observed for all samples 

included; unusual composition or other factors 

seemed to warrant inclusion in this category.

The relation of the three general categories to one 

another is clarified by the use of a four-cornered 

tetrahedron that represents a four-component classification system. (See fig. 2.) The base of the tetrahedron may be taken as the triangular diagram of 

figure 1, its three corners being, respectively, 100 

percent uncombined silica, 100 percent clay, and 100 

percent carbonate. The apex of the tetrahedron is 

then 100 percent of some component, or components, 

other than uncombined silica, clay, or carbonate 

The interior of the tetrahedron, the volume above 

the basal triangle, represents those rocks composed 

partly of the three components (uncombined silica,
GENERAL INFORMATION

Other components

Clay

 -^Uncombined 

silica

FIGURE 2. Tetrahedron illustrating three categories of rock 

compositions: (1) common-rock samples consisting of more 

than 85 percent uncombined silica, clay, and carbonate, 

(2) mixed-rock samples that include one or more additional 

components, and (3) special-rock samples in which other 

components, such as gypsum or phosphate rock, make up 

more than 50 percent of the sample.

clay, and carbonate) and partly of one or more additional components. For example, the location within 

the tetrahedron of an analysis consisting of 19 percent uncombined silica, 19 percent clay, 57 percent 

carbonate, and 5 percent calcium sulfate is determined by recalculation of the composition to that of 

the basal triangle: 20 percent uncombined silica, 20 

percent clay, and 60 percent carbonate. The analysis 

is located at this point on the basal plane and then 

projected toward the apex of the tetrahedron for a 

distance equivalent to 5 percent (the amount of 

calcium sulfate in the analysis). The point representing the sample will fall within the volume designated 

as common-rock category in figure 2.

An analysis that shows 15 percent uncombined 

silica, 30 percent clay, 15 percent carbonate, and 40 

percent calcium phosphate is recalculated to the 

composition of the basal triangle that is, 25 percent 

uncombined silica, 50 percent clay, and 25 percent 

carbonate. The sample is located at this point on the 

basal plane and then projected toward the apex for 

a distance equivalent to 40 percent (the amount of 

calcium phosphate in the analysis). The point representing the analysis will then fall in the upper part 

of the volume designated as mixed-rock category in 

figure 2. If the analysis had shown 60 percent calcium phosphate, the point representing it would have 

fallen in the lower part of the volume designated as 

special-rock category.

To keep the nomenclature of the classification 

scheme simple and reasonably consistent, the different special-rock categories are designated as 

"groups" by analogy with the use of that term for 

the different mixtures of the three main components 

of the basal plane of the tetrahedron. The nomenclature of the special-rock category is as follows:

Table Group Description

11........Hk.........High-alumina, kaolinlike clays, no bauxite.

12........Hki........High-alumina, kaolinlike clays, no bauxite,

containing iron.

13... -Ha.........High-alumina, kaolinlike clays, bauxite subordinate.

14........Hai........High-alumina, kaolinlike clays, bauxite subordinate, containing iron. 

15- .Kb......... Bauxite and bauxitic clay.

16...- Hbi........Bauxite and bauxitic clay, containing iron.

17........Fe. ......Iron-bearing rocks.

18... Mn.. ....Manganese-bearing rocks.

19 -G........ Gypsum, gypsite or anhydrite.

20........S ..........Chloride-, sulfate-, carbonate-, and nitratebearing rocks. 

21 .P............Phosphorite.

22........M .. .Miscellaneous rocks.

ANALYSES

Analysis selection. Analyses were taken only 

from reports published prior to 1965 and from openfile reports of the U.S. Geological Survey. Unpublished supplementary information on a published 

analysis is cited as written or oral communication. 

The analyses are generally recorded in this report 

as they are given in the original publication; the 

few recalculations made by the compilers are noted. 

Parentheses around amounts in tables indicate that 

amounts are not included in the totals. Information 

concerning the analyses supplied by the compilers 

is put in brackets.

Arrangement of analyses. The 5,411 analyses 

compiled are presented in tables 1-22 of this report. 

The tables are arranged in sequence according to 

classification groups of the common- and mixed-rock 

categories. For groups A through F1? each table lists 

the analyses by States, in alphabetical order, and 

contains all the analyses in the group. For group 

Fo, which contains several hundred analyses, the 

analyses for each State are given in a separate table. 

Each group in the special-rock category is in a 

separate table.

The user should note that the published analyses, 

despite their large number, are probably not truly 

representative of the composition of all sedimentary 

rocks of the region. Most of the analyzed rocks were 

selected because they are (or were thought to be) of 

special economic interest and are, hence, probably 

of rather unusual chemical composition. For example, limestone that contains 95 percent or more
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

CaC03 is grossly overrepresented in the published 

analyses; natural limestone analyses show a wide 

range in CaC03. But this geochemically unrepresentative or biased nature of the published analyses does 

not necessarily detract from the potential usefulness 

of these analyses for other purposes. Carbonate 

rocks of unusual purity were specially selected for 

analysis, which affords the potential manufacturer 

of lime, industrial fluxes, and other mineral commodities valuable information on localities where 

the best source materials for his particular purpose 

can most readily be obtained.

TYPES OF SAMPLES

Sedimentary, metamorphic, and igneous rocks. 

The dividing line between sedimentary and metamorphic rocks is not a sharp one in nature, and some 

authors do not always clarify where a given analyzed 

sample lies in relation to this line. In this report, the 

usage of the individual author was followed wherever possible. Slightly altered rocks are generally 

included; considerably altered rocks are not. An 

"altered" rock is included if the "alteration" is 

interpreted to be due primarily to sedimentary or 

diagenetic processes, rather than to metamorphic 

or hydrothermal processes. In general, Precambrian 

sedimentary rocks have been greatly modified by 

pressure, heat, and circulating fluids; only those 

that seem from the description to have been slightly 

modified are included. If a sample is part of a series 

(as an igneous rock and its weathered and partly 

weathered products), the complete series or representative samples from the complete series are 

included. "Marble" is sometimes applied as a trade 

name to any carbonate rock that will take high polish, and for this reason analyses of some rocks called 

marble are also included. Analyses of some rocks of 

doubtful origin, or ones that have undergone an 

unknown amount of metamorphism, are included if 

the rock is of special economic interest.

Washed and purified samples. Analyses of 

washed and purified samples are included if no more 

than 10 percent of the material was removed during 

the processing.

Weathered samples. Analyses of weathered 

samples are included if the samples are parts of 

related suites for example, the original rock, its 

partly weathered product, and the resulting soil. 

Also, analyses of redeposited weathered material 

are included, but unless the samples are a part of 

related suites, as above, analyses of weathered material at its source are not included.

Coal and oil-shale samples. Coal analyses are 

generally excluded; however, analyses of coal and 

oil shale are included if analyses of the ash are also

available. If the number of such analyses is large, 

a selection of representative analyses is given.

Pure samples. Analyses of hand-picked samples 

of a certain color or of "pure" composition are not 

included. Analyses of samples thought to be representative of a part of a formation or a member are 

included.

Concretions and nodules. Concretions and nodules may be typical of some formations or they may 

be of scientific interest. Analyses of such samples 

are included.

ANALYSES OF SAMPLES

Completeness. No selection based on the known 

or inferred quality of the analyses was made except 

that the totals be in the range from 95 to 102.5 

percent. Selection and grading of analyses based on 

quality and completeness are left to the reader. A 

few analyses are included that do not precisely meet 

the standards outlined above that is, if the sample 

is part of a related suite, is the only one of a given 

formation, is of particular economic or scientific 

interest, or contains constituents not commonly determined, or if the sample information includes a 

spectrographic analysis. If a large number of incomplete analyses include complete spectrographic analyses, a few of these incomplete analyses were selected 

to show the upper and lower limits of various constituents in both the chemical and the spectrographic 

analyses.

No grading was made of the analyses into categories of superior, good, and fair. The date of original publication of the analyses affords the user a 

general means by which the reliability of such 

analyses might be appraised, and, where available, 

the analyst's name gives additional basis by which 

the quality of the work may be judged. A critical 

selection of truly superior analyses can probably 

best be made after the present, more inclusive compilation has become available.

Insoluble residues. An analysis that records more 

than 25 percent of the rock as insoluble in acid, and 

that does not report Si02 separately, is not included.

Totals. In general, an analysis is used if the total 

is within the range of 95 to 102.5 percent. In some 

analyses the percentage of a readily calculated constituent that had not previously been determined 

brings the total within these limits. For example, in 

some limestone and dolomite analyses, C02 was not 

determined, and the analysis total is accordingly too 

low to meet the 95-percent criterion. However, 

analyses of limestone and dolomite are included if 

the C02 calculated from the determined CaO and 

MgO brings the total within the 95-percent limit. 

If the total is not in the source reference, the amount 

has been added, in brackets, by the compilers.
GENERAL INFORMATION

Sample location. Sample locations for Idaho, 

Oregon, and Washington are given by the township 

and range system. Only analyses that contain reasonably adequate information concerning locality are 

included. In Alaska, however, at the time the compilation was made, vast areas were not covered by 

the township and range system. A coordinate system, 

as set forth by Cobb and Kachadoorian (1961), was 

used on maps of the Alaska Reconnaissance Topographic Series. A few of the new Alaska Topographic Series maps were used, and coordinates of 

these maps and the older ones should be reasonably 

comparable.

The coordinates are given in brackets. The first 

number is the perpendicular distance, in inches, from 

the west boundary of the map to the sample location. 

The second number is the distance from the southwest corner of the map along the west boundary to 

its intersection with the perpendicular from the 

location. If only a general location is given for the 

sample, the coordinates include the extreme limits 

of the area.

EXPLANATION OF TERMS AND ARRANGEMENT OF 

TABLES

References. Analyses utilized in this study were 

obtained mostly from readily available publications. 

In the descriptive notes of an individual table, the 

underscored page number given in the reference 

indicates the page on which the analysis is found in 

the cited report. If more than one reference is given 

for an analysis, the first given is generally the reference from which the analysis is taken. References 

other than the first supply additional information on 

the descriptive notes or on the analysis itself.

Many analyses are published and republished over 

the years. Most of these analyses are quoted exactly, 

but some are not consistent in constituents and 

amounts when republished. These inconsistencies 

may reflect the interpretation of a later author, or 

they may simply be the result of typographical 

errors. In either case, the reader's attention is called 

to the discrepancy by the statement: "Minor discrepancies occur in naming of constituents and in 

their amounts when more than one version of the 

analysis is found in the literature."

Identification numbers and code numbers of analyses. Each analysis is assigned two numbers. The 

first is an identification number that serves to relate 

the analysis and the sample description in the tables. 

These identification numbers run in sequence 

through each table. An asterisk preceding this number indicates that the sample is in the mixed-rock 

category. (See p. 2.) The second number is a code 

that identifies the sample in permanent files and

gives some information on the locality and rock type 

represented by the analysis. This number appears 

only in the column headings of the analytical tables. 

The code number 36D3-19, for example, is translated as follows:

36 Oregon. (See p. 6 for State codes.) 

D Clay group (See p. 2 for definition of

groups.) 

3 Clackamas County. (See p. 7 for county

codes.) 

19 Position of analysis in sequence of analyses

from county.

Lithology. The rock name given to a sample is 

that used in the original reference. Where the reference gives no name, or where the compilers thought 

there was some doubt as to the accuracy of the name, 

a name was supplied on the basis of either the position of the analysis in the classification system or 

the compilers' interpretation of the original publication. The name supplied by the compilers appears 

in brackets and is followed by the name, if any, given 

in the reference.

Treatment of stratigraphic nomenclature. Because the stratigraphic nomenclature used in this 

report is from many published sources, the names 

and ages do not necessarily reflect the latest usage 

of the U.S. Geological Survey. The age and formation 

of each sample are given in the descriptive notes as 

reported in the published source of the analysis, 

unless the reported assignment is so out of date as 

to be misleading and better information could be 

conveniently obtained. The age is not repeated if 

more than one analysis of the same formation appears on the same page. For some of the analyses, 

age and the stratigraphic unit are not known because 

of complex structure or because the area has not 

been fully investigated.

Chemical analyses. The lists of constituents in 

the tables were simplified as much as possible by the 

use of footnotes to indicate such information as: 

(1) the entry shown as Si02 was reported in the 

original published analysis as insoluble matter, (2) 

the figures for CaO and MgO are derived from an 

original analysis in which CaC03 and MgC03 were 

reported, or (3) an oxide figure was calculated from 

an original report of the element if the element 

amounted to more than 0.05 percent. The analyses 

are thus brought into a superficially similar form.

Minor elements such as arsenic, vanadium, and 

selenium were determined chemically for a few 

samples that were also analyzed spectrographically. 

Analyses for such minor elements are listed with 

the spectrographic analysis and are identified as 

chemical determinations by means of a footnote.
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Spectrographic analyses. Spectrographic analyses of minor constituents are given only for those 

samples for which chemical analyses of major constituents are also available. Some incomplete chemical analyses have been included if a Spectrographic 

analysis is available; and if a great many incomplete 

chemical analyses and accompanying Spectrographic 

determinations are available, a selection was made. 

The methods of Spectrographic analysis and the 

constituents looked for vary considerably from one 

laboratory to another, and no attempt was made to 

evaluate the Spectrographic data. The elements are 

in order by atomic weight.

Mineralogy. The word "mineralogy," as used in 

this report, indicates that information on the mineralogy of the sample is available in the original 

publication.

Nil, None, Trace. The words "nil," "none," 

"trace," and "slight trace" and similar terms are 

used in accordance with the original publications. 

These terms may have different meanings to different chemists, and it thus seemed unwise to attempt 

reduction to a more nearly uniform nomenclature.

Punctuation and footnotes. Additional information not available in the original publication, but 

relating to the locality, formation, or rock name, is 

in brackets if it was supplied by the compilers. Information supplied by others is cited as written or oral 

communication. Parentheses are used in the tables 

of analyses to indicate those amounts not included 

in the total; a footnote for such amounts gives 

further information. Each set of facing pages with 

chemical analyses and accompanying descriptive 

notes is considered as a unit, and the footnotes, numbered accordingly, apply only to that unit.

Reported use of rock. Generally, the information 

on the actual or potential economic use is given only 

if it is stated in the original publication. No effort 

was made to equate the different terms used nor to 

bring the information up to date.

MAGNETIC TAPE

Description of magnetic tape. During the process 

of compilation, increasing use was made of computer 

technology to assemble the data, to make the calculations necessary for classification of the analyses, and 

to arrange the material for publication. The basic 

data are recorded on a magnetic tape in two parts:

(1) Professional Paper 561 (Hill and others, 1967) 

and (2) this report. The data in this form can be 

useful to individuals or companies who seek information on the occurrence of rocks of particular 

chemical composition or to scientists who are concerned with broad geochemical problems of sedimentary rocks. A computer program for searching 

the tape and selectively retrieving data has been 

described (Roberts, 1971).

The magnetic tape includes the chemical analyses 

and related information, such as rock type, State, 

county, age, classification group, and use of the rock. 

For sample localities and detailed information, this 

compilation and Professional Paper 561 (Hill and 

others, 1967) must be seen.

CODES FOR PERMANENT NUMBERS 

ASSIGNED TO ANALYSES

Given in the following list are the code numbers 

of the States, of the quadrangles and other areas of 

Alaska, and of the counties in Idaho, Oregon, and 

Washington, respectively, represented by the sample 

data in this report.

STATE CODES

50. Alaska 

11. Idaho

36. Oregon

46. Washington

QUADRANGLE CODES

Alaska

1. Adak

5. Anchorage

6. Arctic 

23. Blying Sound 

26. Candle

29. Chandler Lake

30. Charley River

36. Craig

40. Dixon Entrance

42. Fairbanks

52.

155!

156.

55. Howard Pass 

57. Icy Bay 

61. Juneau 

66. Kenai

68. Killik River 

70. Kodiak 

76. Livengood

86. Mount Fairweather

87. Mount Hayes

88. Mount Katmai 

90. Mount Michelson 

95. Nome 

101. Petersburg 

105. Port Alexander 

109. Rat Islands

114. St. Michael

115. Sagavanirktok

124. Sitka

125. Skagway 

145. Umnak 

151. Wainwright

MISCELLANEOUS CODES 

Alaska

102. Pribilof Islands 160. Offshore sediments
ANALYSES OF SAMPLES

COUNTY CODES

Idaho

Caribou

3. Bannock

4. Bear Lake

5. Benewah

6. Bingham

7. Blaine

8. Boise

9. Bonner 

10. Bonneville 

12. Butte 

15. 

45.

16. Cassia

17. Clark

18. Clearwater

1. Baker

2. Benton

3. Clackamas

4. Clatsop

5. Columbia

6. Coos

7. Crook

8. Curry

9. Deschutes

Oregon

19. Custer 

21. Franklin 

23. Gem 

25. Idaho

28. Kootenai

29. Latah

30. Lemhi

31. Lewis

35. Nez Perce

36. Oneida

40. Shoshone

41. Teton

42. Twin Falls 

44. Washington

10. Douglas

12. Grant

13. Harney

15. Jackson

16. Jefferson

17. Josephine

18. Klamath

19. Lake

20. Lane

Oregon Continued

21. Lincoln

23. Malheur

24. Marion

26. Multnomah

27. Polk

28. Sherman

1. Adams

2. Asotin

3. Benton

4. Chelan

5. Clallam

6. Clark

7. Columbia

8. Cowlitz

9. Douglas

10. Ferry

13. Grant

14. Grays Harbor

15. Island

16. Jefferson

17. King 

19. Kittitas

21. Lewis

22. Lincoln

23. Mason

29. Tillamook

32. Wallowa

33. Wasco

34. Washington

35. Wheeler

36. Yamhill

Washington

24. n Okanogan

25. Pacific

26. Pend Oreille

27. Pierce

28. San Juan

29. Skagit

30. Skamania

31. Snohomish

32. Spokane

33.

41.

42 r" Stevens

43.

34. Thurston

36. Walla Walla

37. Whatcom

38. Whitman

39. Yakima
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

(Group A), common- and mixed-rock categories

[ Samples of mixed-rock category indicated by an asterisk (*) . Chemical analyses arranged by county and stratigraphic position] 

Chemical analyses

SiO, _________ .

Ai.n.

Fe,0, __________

MgO ___________

CaO ___________

K.D

H,0+ _ ______ __

TiO, _________

D /")

MnO ___________

CO, 

C/"\-

Cl _____________

Total _____ .

Class ___________

SiO, ___________

A1,O, __________

Fe,0, 

FeO ____________

MgO ___________

CaO ___________

K,O ____________

H,0+ __________

H,0- __________

TiO, ___________

p.ru

CO, 

MnO ___________

NiO ____________

HtSOu

HjAsO, __________

Total ______

Class ___________

Alaska

1

50 A 155- 150

_________ 96.31

_________ 1.59

_________ .40

10

________ .07

_________ .23

_________ .05

_________ .35

_________ .05

_________ .31

_________ .06

_________ .15

_________ .00

. _______ 99.79

_________ 93,6.0

24

Idaho

2

11A9-8

96.6

) 3 '4 1

[100.0] 

93,7.0

13

36A9-7

85.83 

3.98 

2.19

.41 

1.25

*4.68

'.73

99.07 

76,21.2

25

36A13-3

SiO, ___________

AUO.

Fe,0, __________

MgO ___________

CaO ______ _

Na,0 _____

K,0 ____________

j. o.

TiO, ___________

CO, ___________

SO, 

Cl _____________

NO, ___________

Total ______

Class ____ __

________ 84.48

________ 3.66

________ 1.46

________ .18

________ .80

________ .22

________ .16

________ 4.24

________ *4.90

________ .26

________ .05

________ .06

________ .06

________ 100.53

_ _______ 76.22.0

92.45 

4.00 

1.60 

.20 

.85 

.24 

.18

.28 

.06 

.07 

.07

*100.00

3

11A9-9

97.3 

1.4 

1.3

[100.0] 

93.6,0

14

4567

11A15-9 11A18-11 11A29-56 11A29-57

98.90 94.36 96.28 99.072 

.37 3.08 1.97 .564 

.17 .02 .036 .026

_____ .036 .02 .086

.56 .10 .08 .025

4

Oregon

8 9

36A9-2 36A9-3

86.00 86.26 

1.Q6 3.22 

.92 1.54

.09 Trace 

.27 .05

I 7.60 4.94

[100.00] [97.60] [98.39] [99.773] *95.94 *96.01 

98,1,0 89,9,0 93,6.0 98,2,0 83,12,1 79,17,0

Oregon Continued

15 16 17 18

36A9-8 36A9-5 36A9-14

86.74 

4.64 

1.46

.37 

.85 

.00 

.00 

7 5. 80

 .40

100.26 

77.22,1

26

36A15-17

89.46 

3.40 

2.31 

.33 

.38

*3.32

99.91 

81,17.1

90.75 92.49 95.40 87.6 

4.91 .89 .91 3.76 

1.54 1.46 1.40 1.39

.38 .46 .45 Present 

.88 .63 .65 1.3 

0 ___ __ ___ __ Present

_____ T 3.08 _____ _____

_____ _____ _____ .16

_____ 'l.Ol _____ *4.10

_____ _____ _____ ».48

4 98. 46 100.02 4 98.81 [98.8] 

_____ 89,9.2 _____ 79,17.2

Oregon Continued

27 28 29 30

36A23-1 36A23-2

83.82 91.75 82.64 92.59 

3.74 4.09 3.20 3.59 

1.99 2.18 1.88 2.11 

.30 .33 .38 .42 

.58 .63 .64 .72 

.34 .37 .04 .05 

.20 .22 .14 .15 

5.06 _____ 5.40 ___

.19 .20 .18 .20 

.09 .10 .09 .10 

.10 .13 .06 .07 

None None None None

100.13 *100.00 99.67 *100.00 

75,23,0 _____ 75,23,0 ______

19 *20

36A10-7 36A10-19

98 44.27 

.2 None 

1 .62 

_____ .13

_____ 8.99

.05 .16

_____ 8.39

_____ 4.58

.3 ______

.005 ______

 small _____

_____ 33.05

[100] 100.19 

97.3,0 44,14,0

31 32

36A23-3

85.52 94.51 

2.60 2.87 

1.04 1.15 

.17 .19 

.48 .53 

.28 .31 

.04 .04 

4.44 ______

*4.72 ________ ;

.14 .15 

.14 .15 

.09 .10 

None None

99.66 *100.00 

80,19.0 ______

10

36A9-4

88.51 

1.28 

1.28

.91 

1.06

5.15

[98.19] 

85.11.4

*21

36A10-12

48.82

.06

18.49

'9.26

*3.03

19.04

Trace

98.70 

49.9,6

33

11 12

36A9-1

83.18 

2.66 

1.46

.35 

.80 

.48 

.14 

f 4.50 

\ '6.26 

.16

.08 

.10 

.02

100.21 

77.21,0

*22

36A10-11

48.21 

I '1.38

19.90

| 6.63

23.88

100.00 

46,10,0

34

36A23-6

82.84 

3.18 

1.14 

.23 

.38 

1.12 

.14 

5.52

*5.68

.18 

.05 

.69 

.18

101.33 

76.22,0

91.92 

3.53 

1.27 

.25 

.42 

1.24 

.16

.20 

.05 

.76 

.20

* 100. 00

93.03 

2.97 

1.67

.39 

.89 

.53 

.16

.18

.09 

.11 

.02

>4100.04

*23

36A10-8

59.44 

f .41 

\ 6.40

16.27 

1.11

1 *5.91

11 1.00 

U.33 

8.23 

.30 

*.60

100.00 

52,16.0

35

36A23-9

87.58 

4.72 

.42 

.56 

.76

I .27 

M5.64

Trace 

.05 

None 

None 

None

[100.00] 

79,20,0

See following page for footnotes.
ANALYSES OP SAMPLES

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska

1. Healy quadrangle. Probably Triassic. [Sec. 2, T. 17 S., R. 7 W., unsurveyed],about 2/3 mile north of town of Windy, adjacent to Alaska 

Railroad. Analyst, H. M. Hyman. Sample 100. ( Moxham, Eckhart. 

and Cobb. 1959, p. 69, £15, pi. 11. ) Chert, black; stratigraphic 

thickness about 60 ft. Sample, fresh chips collected at 5-ft intervals 

across width of outcrop. Index and geologic maps. Usei Cement.

Idaho

2. Bonner County. Precambrian, Belt [Supergroup] , Revett Formation.

[T. 55 N., R. 2 E.],few milet west of town of Clark Fork. ( Carter and 

Savage. 1964, p. 177, JL79.) Quartzite. Index map.

3. Bonner County. Cambrian, Gold Creek Quartzite. [T. 53 N., R. 2 W.], 

south end of Pend Oreille Lake. ( Carter and Savage, 1964, p. 177, 180.) 

Quartzite. Index map. Possible uses Source of silica for local uses.

4. Caribou County. Ordovician, Swan Peak Quartzite. [T. 9 S., Rs. 41, 42 

E.],Soda Springs. Monsanto Chemical Co. quarry. ( Carter and Savage, 

1964, p. 177, ^79.) Quartzite. Index map. Use: Flux.

5. Clearwater County. NEi sec. 32, NWi sec. 33, T. 40 N.. R. 11 E..

Cedars-Kelly Creek area. Deposit 1-7. (Carter, Kelly,and Parsons, 1962, 

p. 14-17, 19. 21.) Sandstone, light-gray-white. Representative sample 

from outcrop. Index maps. Possible uses Glass sand.

6, 7. Utah County. NEi T. 40 N., R. 1 W., and SEi T. 41 N.. R. 1 W. Bovlll 

deposit. ( Carter, Kelly, and Parsons, 1962. p. 19, 20, 21.) Sand, 

decomposition product of granitic rock; bed ranges from few inches to 

more than 20 ft thick. Typical analysis, head sample. Mineralogy. 

Possible uses Industrial uses, glass.

Oregon

8-10. Deschutes County. Early to middle Pliocene, Deschutes Formation( ?)

[Pliocene, Madras Formation],Center sec. 16, T. 14 S., R. 12 E., about 

6 miles west of town of Terrebonne. Western Diatomite Co. ( Boyle, 

1921, p. 152-^55; Stearns, 1931, p. 127, 133, 152.) Diatomite, 

compact, banded; maximum thickness 40 ft; overburden thin to 12 ft 

thick. Volume estimated. Index and geologic maps. Logs of test pits.

8. Analyst, L. V. Hampton. Uses Filtration. 

9, 10. Use: Filtration, insulation.

11.12. Deschutes County. Deschutes Formation (?) [Madras Formation] . Sec. 16, 

T. 14 S., R. 12 E., 6 miles wen of Terrebonne. Atomite Corp. quarry. 

Analyst. E. T. Erickson. Lab. No. Y4. ( Moore, 1934a, p. 3, 4, 10. 

U.-13; Moore, 1937, p. 21. 27, 28, 30-32, 108, 114. pis. 1. 4; Wells, 

1937, p. 45.) Diatomitei white when dry, ivory yellow when wet; earthy, 

loosely consolidated; for most part massive; sample from bed 12.5 ft thick; 

overburden. Ridgway color notation. Reserves estimated. Index and 

geologic maps, detailed measured section, microscopic examination, 

photomicrograph. Uses Concrete admixture, filtration, insulation.

13- 17. Deschutes County. [T. 14 S., R. 12 E.],7 milet west of Terrebonne. 

Atomite Co. ( Eardley-Wilmot, 1928. p. 102, 103, 108. pi. 14.) 

Deposit: Diatomite; interbedded with other sediments; beds 1-5 ft thick, 

maximum thickness 45 ft, averages 30 ft; overburden. Photomicrograph.

13. Use: Filtration [Implied] .

14, 15. ( Moore, 1937, p. 116, 117.) Possible use: Filtration, insulation. 

16, 17. (Moore, 1937, p. 116. 117; Mason, 1951, p. _9, 10.) Sample 

18 in. thick. Large deposit. Index map. Possible uses 

Lightweight aggregate, filler, filtration, insulation.

18. Deschutes County. [T. 15 S., R. 13 E.],near town of Redmond. Analyst, 

Mary Fletcher. ( Norman and Ralston. 1942, p. 361. 362.) Diatomite. 

Purification tests.

19. Douglas County. Post-Miocene (?) sllicification and alteration of Oligocene 

and Miocene tuffs. Sec. 2, T. 28 S., R. 1 E., 35 miles east of town of 

Roseburg. Owners, Roy and Gerald Rannells. ( Ramp, 1960, p. 109, 110, 

112, 113. 114.) General: Silica rock, grayish-white, cryptocrysulline, 

tough, massive. Mineralogy. Thin-section description. Index and 

geologic map. Possible uses Chemical, metallurgical, refractories.

*20. Douglas County. Probably Miocene. SEi sec. 17. T. 30 S., R. 6 W., 

near town of Riddle. Analyst, K. I. Murata. ( Pecora, Hobbs, and

*23.

24, 25.

Oregon Continued

Murata, 1949. p. 13-16. IS, 20.) Garnierite, dark-green, crusts on wall 

of vug. Mineralogy, microscopic examination, bulk density 2.92. 

Ridgway color notation. Index maps. X-ray patterns and differential 

thermal analysis. 'Analysis shows 33.0 percent NiO, 9.2 percent more 

MgO and CaO than required for carbonate.

21. 22. Douglas County. Tertiary. Sec. 17, T. 30 S., R. 6 W., northwest of

Riddle, Nickel Mountain. Owner, E. F. Adams. ( Pecora and Hobbs. 1942. 

p. 205-207, 212, 213. 215, 222. 223, 225, 226, pis. 37. 38.) Garnierite. 

yellowish- to apple- to blue-green; soft, brittle when dry. Deposit: 

Layered blanket from few feet to 60 or 70 ft thick; averages about 20 ft 

thick. Tonnage estimated. Index and geologic maps. Possible use: Source 

of nickel.

*2l. Analyst, A. Grunow. ( Foullon, 1B92, p. 271, 272.) 'Analysis 

shows 19.0 percent NiO; suggests 15.8 percent more MgO than 

required for carbonate.

*22. Analyst. Hood. ( Mining and Scientific Press. 1882. p. 416.)

'Analysis.shows 23.9 percent NiO, suggests 19.9 percent more MgO 

than required for carbonate.

Douglas County. [T. 30 S., R. 6 W.J,west of Riddle, Big Piney Mountain. 

Analyst, A. R. Ledoux. (Ledoux. 1901, p. 185-J.88.) Nickel silicate. 

Possible use: Source of nickel. 'Analysis shows 8.2 percent NiO; suggest* 

17.4 percent more CaO and MgO than required for carbonate.

Barney County. Miocene and Pliocene ( ?), Payette Formation. NWi NEi 

sec. 34, T. 19 S., R. 36 E., 7 miles northeast of town of Drewsey. 

Diatomite Products Co. Analyst, E. T. Erickson. Lab. No. 91. ( Moore, 

1934a, p. 8, 9,11,12; Moore, 1937, p. 95, 97-99, 103, ^04-106, 111. 

114. pis. 1. 10. lit Wells, 1937, p. 45.) Diatomite; white when dry. 

buff when wet; massive; sample from bed 8 ft thick. Little overburden. 

Ridgway color notation. Tonnage estimated. Index and geologic maps, 

detailed measured section, microscopic examination, photomicrograph. 

Possible use: Concrete admixture, filtration, insulation.

Jackson County. Probably post-middle Miocene. South-central part of 

sec. 19, T. 38 N., R. 3 E., east of town of Ashland, near Dead Indian 

Road. Field No. 44. ( Wilson and Treasher. 1938, p. 1, 19, 24. 82, 84, 

93.) Flint or chert i stained deep cream with iron oxide; conchoidal 

fracture. Index maps. Firing tests. Former uses Firebrick. Possible use: 

Silica brick.

Malheur County. Payette Formation. Harper district. Pacific Coast Diatom 

Corp. Analyst. E. T. Erickson. ( Moore, 1934a, p. 6, 7, 10, 11, 12; 

Wells. 1937, p. 45.) Volume estimated. Index and geologic maps, correlated columnar sections, detailed measured section, microscopic examination, photomicrograph. Use: Cement admixture, filtration, insulation. 

27, 28. Wi sec. 15, T. 18 S.. R. 41 E. Lab. No. T3. ( Moore. 1937, 

p. 68, 77-79, 87, 88, 89, 92, 94. 109. 114. pis. 1. 7. 8.) 

Diatomite; white when dry, buff when wet; compact; low 

apparent density; bed 8.5 ft thick. Ridgway color notation. 

29, 30. Ni sec. 34, T. 18 S., R. 41 E. Lab. No. V2. ( Moore, 1937, 

p. 68, 78, 80. 81, 87, 88, 89, 91, 92, 94, 109, 114. pis. 1, 

7, 8.) Diatomitet white when dry; buff when wet; compact; 

low apparent density; bed 2 ft 11 in. thick. Ridgway color 

notation.

31, 32. NWi sec. 2, T. 19 S., R. 41 E. Lab. No. W4. (Moore. 1937, 

p. 68, 78, 81, 87, 88, 91, 92, 94, 110, 114, pis. 1, 8, 10.) 

Diatomite; white when dry, pale ivory yellow when wet; compact; low apparent.density; 74.5 ft thick. Ridgway color 

notation.

33. 34. SEi SEi sec. 22, T. 19 S., R. 42 E. Lab. No. P4. (Moore, 1937. 

p. 68, 78, 83, 84, 87. j»8, 91, 92, 94, 110, 114. pis. 1, 8, 10.) 

Diatomite; white when dry, pale buff when wet; compact, massive; low apparent density; 5.5 ft thick. Ridgway color notation.

Malheur County. Late Tertiary or Pleistocene. Portions of sees. 2-4, 9-11, 

T. 19 S., R. 41 E., and sec. 34. T. 18 S.. R. 41 E.. about 7 miles north 

of town of Harper. White Earth Products Corp. ( Smith, 1932, p. 704, 707- 

710, 212-715.) Diatomite; conchoidal fracture; some bedding planes. Bulk 

density 1.25. Physical properties, index of refraction. Tonnage estimated. 

Index map, geologic sections. Possible general use: Abrasive, cement 

additive, filler, filtration, insulation, buildiug material, absorbent medium, 

chemical reagents.

27-34.

35.

Footnotes of analyses on preceding page:

*At 105° C.

X 99.96 percent in text.

' 100.00 percent in text.

4 Reported as recomputed to a water-free basis.

5 Iron and aluminum oxide.

'Undetermined, chiefly potash and soda. 

7 Above 105* C. 

*At 120° F.

'includes organic matter. 

u Ignition loss.

Reported as manganese peroxide. 

'Reported as arsenious acid. 

'Calculated from reported carbon. 

'Combined water. 

8Reported as TiO.
10 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 1. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing more than 75 percent uncombined silica

(Croup A), common- and mixed-rock categories Continued

Chemical analyses Continued

Washington

36

46A1-1

SiO, ________________________ 89.5

Al,0, 1.9

FejO, 1.3

FeO _________________________ ______

MgO __ ____

CaO ________________________ ______

u o+

UQ_

Total _____________________ [97.6]

Class 85,13.0 " "

37

46A3-1

86.25 

.62 

.80

.31 

.45

5.74 

5.48

[99.65] 

84.14,1

38

46A4-17

93.06 

4.30 

1.95

.13

99.44 

83.17,0

39

46A13-2

87.6 

1.2 

1.4

5.3

[95.5] 

84.12.0

40

46A13-3

89.1 

2.0 

2.1

4.5

[97.7] 

83.15,0

41 42

46A13-1

93.15 

1.04 

1.24

.31 

.50

1 3.09

4 .41

99.74 

90.9,1

96.38 

1.08 

1.28

.32 

.52

'99.58

43

46A15-2

82.6 

3.9 

1.1

11.5

[99.1] 

74,25.0

44

46A17-50

87.62 

7.59 

.73

.54 

1.75

1.18

99.41 

73.24,0

45

46A 17-51

96.65 

.06 

.27 

.63

.22

.63

'1.54

* Trace

' 100. 00 

96,2,0

46

46A19-7

89.0 

3.0 

3.9

4.4

[100.3] 

79,21.0

Washington Continued

AljO, ___________________________________

Fe,0, ___________________________________

FeO ______________________ ____ _____

MgO ____________________________________

CaO ____________________________________

I%OTotal ________________________________

Class ____________________________________

47

46A19-8

88.7 

2.3 

3.1

5.4

[99.5] 

81,18,0

48

46A19-9

88.3 

3.9 

2.9

4.8

[99.9] 

78,22.0

49

46A19-10

91.1 

1.3 

2.0

5.1

[99.5] 

87.13,0

50

46A 19-11

89.6 

2.9 

2.1

4.2

[98.8] 

82,17.0

51

46A19-12

90.5 

2.0 

2.0

3.6

[98.1] 

85,13,0

52 53

46A19-2

86.60 

2.62 

2.58

.56 

.57 

1 5.08

4.12

98.13 

79,18,0

93.07 

2.82 

2.77

.60 

.61

'99.87

54

46A27-3

98.11 

.07 

.25 

.64 

.12 

.22 

'.76

[100.17] 

98.1,0

55

46A28-16

90.21 

1.98 

1.89 

1.75 

.81 

.72 

*1.73 

*.69

99.78 

85,12,0

56

46A32-9

89.5 

7.0 

Trace

.3 

Trace

7 2.8

99.6 

77.21,0

Washington Continued

SiO, ____________________________________

AljO, ___________________________________

Fe.0, ___________________________________

FeO ______________ _ _

MgO _____________ _ _

CaO ____________________________________

NajO ____________________________________

K,O _______________ ___ _ _ _

OfOTiO, ____________________________________

Ignition loss _______________________________

Total ________________________________

Class _________ ____

1 Above 105«C. 

'Above 110«C.

57

46A41-271

99.11 

s.63 

'.072

.01 

.02 

.02 

.06

*

.04

99.89 

98.2,0

58 59

46A41-272 46A41-273

98.80 

*.79 

'.036

.01 

.04 

.04 

.06

.09

99.83 

97.20.0

99.29 

.39 

.099

Trace 

.07

.050 

.08

99.98 

98.1,0

60

46A41-274

99.20 

.46 

.056

Trace 

.10

.070 

.08

99.97 

98.1,0

61

46A43-160

97.2 

.03 

.054

.05 

.05

[97.4] 

97.0,0

62

46A41-206

97.36 

1.48 

.891

.35

100.08 

94,6.0

63

46A34-1

90.84 

1.85 

1.66 

1.72 

1.02 

.65

'*2.39 

* Trace

B 100. 13 

86.11.0

64

46A37-16

90.19 

1.92 

1.42 

2.08 

1.78 

.59

 l.53 

*.97

0 100. 48 

85,11,0

65 66

46A37-161 46A37-36

98

(*)

[98] 

98,0,0

85.9 

5.6 

.8

"5.9

[98.2] 

75,23,0

'iron and alumina.

' Not included in total .

'deponed as CO| and organic matter.

Reported as recomputed to a water-free basis. 

' 100.06 percent in text. 

'Combined water, ignition.

m Reported as very little iron. 

"Reported as 14.2 percent (Skinner and others, 

1944. p. 31).

9 100.03 percent in text. 

" 100.30 percent in text.
ANALYSES OF SAMPLES 11

DESCRIPTIVE NOTES 

[Underscored page nnmbers in reference indicate source of analysis]

Washington

36. Adams County. NEi sec. 25, T. 16 N.. R. 30 E.. about 11.8 miles east of 

town of Othello. Owner, G. W. Klephardt. Analysts, K. A. Johnson, 

Anthony Centenero. ( Skinner and others, 1944, p. 1-4, 20, 21, 22, 58, 

65.) Diatomite, contains chert nodules; 10-15 ft thick; overburden at least 

5 ft thick. Channel sample. Firing tests, physical properties, pH values. 

Index maps. Use: Formerly mined. Possible general use: Concrete admixture, filtration, heat insulation.

37. Benton County. Miocene. SEiNW* sec. 15, T. 9 N., R. 26 E., 3.5 miles 

west of town of Kiona. ( Glover, 1936, p. 38, 39, 40.) Diatomite, lightgray to pure-white, very fine grained; 20 ft thick. Possible use: Soundand thermo-insulation, filtration, absorbent medium.

38. Chelan County. Late Cretaceous and Paleocene, Swauk Formation. SWi 

sec. 22, T. 22 N., R. 20 E. Browns silica sand quarry. Analysis 236-B. 

(Hodge, 1938c, p. 3,22,100,104,105,107-111.) Sandstone, contains shale 

partings and ferruginous masses; about 100 ft thick; overburden. Index and 

geologic maps, geologic section. Use: Cement, steel foundry, molding sand.

39, 40. Grant County. T. 18 N., R. 23 E., 13-16 miles southwest of town of Quincy. 

Analysts, K. A. Johnson, Anthony Centenero. ( Skinner and others, 1944, 

p. 1-4, 21, 22, 23, 24, 65.) Firing tests, physical properties, index map. 

Possible use: Concrete admixture, filtration, heat insulation.

39. South-central part of sec. 9. Diatomite, contains chert nodules; bed 

15 ft thick, overburden 1-8 ft. Channel sample from top of exposure, 0-3 ft.

40. S{ sec. 17, Diatomite; 10 ft thick; overburden 2-5 ft. Channel 

sample.

41, 42. Grant County. [About T. 18 N., R. 23 E.],near town of Burke, 2-4 miles

east of Columbia River. Webley deposits. ( Eardley-Wilmot, 1928, p. 104, 

108; Moore, 1937, p. 116. 117.) Diatomite, contains nodnles and ledges 

of flint, iron stain; from a few feet to at least 40 ft thick. Possible use: 

Filler, insulation.

43. Island County. SE} sec. 29, T. 29 N.. R. 3 E., about 2.S miles north of 

town of Maxwelton, Useless Bay. Analysts, K. A. Johnson, 

Anthony Centenero. ( Skinner and others, 1944, p. 1-4, 21, 27, 58, 65.) 

Diatomite.. Physical properties, pH values. Index maps. Possible general 

use: Concrete admixture, filtration, heat insulation.

44. King County. Eocene, Kummer Series. N|NW} sec. 28, T. 21 N., R. 6 E., 

about 5 miles north of town of Enumclaw. Brooks farm. Analysis 

161-A. ( Hodge. 1938c, p. 3. 22, 129, 133, 140, 144; Wilson and others, 

1942, p. 32.) Sand, overburden 10-15 ft of gravel. Index maps, detailed 

measured section. Possible use: Glass, molding sand.

45. King County. Sec. 28, T. 21 N., R. 7 E., Cumberland station. Eureka Coal 

Co. quarry, abandoned. Analyst, R. W. Thatcher. ( Shedd, 1903, p. 65- 

67, 134, 136, 138, 141.) Sandstone, light-colored, uniform color and 

texture, medium-grained, firmly cemented; contains small seams of carbonaceous material and occasional iron nodules; 250 ft exposed. Mineralogy. 

Bulk density 2.628. Physical properties. Former use: Dimension stone.

46-48. Kittitas County. Analysts, K. A. Johnson, Anthony Centenero. (Skinner and 

others, 1944, p. 1-4, 21, 27, J30, 58, 65.) Firing tests. Index maps. 

Possible general use: Concrete admixture, filtration, heat insulation.

46. W£ sec. 14, T. 15 N., R. 19 E., 13.8 miles north of town of Yakima, 

east of Roza station. Diatomite, some chert nodules; 10 ft exposed; 

overburden 5.75 ft thick. Channel sample. Physical properties, 

pH values.

47. NEi sec. 17. T. 15 N., R. 19 E.. about 1.5 miles west of Roza

station. Diatomite, 4 ft exposed; overburden 7 ft. Channel sample.

48. Sec. 10, T. 15 N., R. 20 E., about 16.2 miles south of town of 

Kittitas. Diatomite, contains chert nodules; 10 ft exposed.

49-51. Kittitas County. Sec. 15, T. 15 N., R. 20 E., 17.2 miles south of Kittitas. 

Analysts, K. A. Johnson, Anthony Centenero. ( Skinner and others, 1944,

Washington Continued

p. 1-4,21^27-29,30,58,65.76,80.) Firing tests, physical properties. Index 

maps. Possible general use: Concrete admixture, filtration, heat insulation.

49. Diatomite; 10-20 ft thick. Channel sample.

50. Diatomite, iron-stained. Photomicrographs, pH values.

51. Diatomite, pH values.

52, 53. Kittitas County. [T. 15 N., R. 20 E.],7 miles east of town of Roza. Kittitas 

Diatomite Co. ( Eardley-Wilmot, 1928, p. 103, 108, 124, pi. 14; Moore, 

1937, p. 116, 117.) Diatomite; yellow tinge when wet; contains yellowgreen banded flint seams near top; deposit 8-15 ft thick; overburden. 

Photomicrograph. Possible use: Filler, insulation.

54. Pierce County. Eocene and Oligocene, Puget Group. NEi sec. 27, T. 19 N., 

R. 6 E., 1 mile north of Wilkeson. Walker Cnt Stone Co. quarry. 

Analyst, R. W. Thatcher. (Shedd, 1903, p. 68, 69, 70, 134, 136, 138, 

141; Hodge, 1938c. p. 3, 129, 139, 142, 143, 144.) Sandstone, lightgray, coarse-grained; in three beds each 20 ft thick. Bulk density 2.649- 

2.652. Mineralogy. Physical properties. Index maps. Use: Pulp and 

paper industry, dimension stone. Possible use: Glass.

55. San Juan County. Cretaceous. [T. 38 N., R. 2 W.],Sucia Island. Analyst, 

R. W. Thatcher. ( Shedd, 1903, p. 56, 72, 73, 136, 138, 141.) Sandstone, 

dark-brown, medium-grained, well-cemented. Bulk density 2.642. 

Mineralogy. Physical properties. Use: Dimension stone.

56. Spokane County. Sec. 1, T. 23 N., R. 44 E., town of Freeman. Washington 

Brick, Lime, and Sewer Pipe Co. No. 222. (Glover, 1941, p. 231, 233, 

241, 348, 350, 351.) Kaolin(?), very sandy. Index and geologic map, 

generalized geologic section.

57-60. Stevens County. Lower Cambrian, Addy Quartzite. SEjNW* and NWiSWi 

sec. 13, T. 29 N., R. 39 E., 5.5 miles southwest of town of Springdale. 

Lyons Hill deposit. ( Ladoo, 1948, p. 13, 33-35, 36.) [Sandstone] 

qnartzite, white to grayish-white, some iron stain, friable, thin- to thickbedded; 500 ft thick, little overburden. Mineralogy, thin-section description. Screen analysis. Tonnage estimated. Index map.

61. Stevens County. Sees. 22, 27, T. 31 N., R. 39 E., north slope of Lane

Mountain. Deposit W-30. (Carter, Kelly, and Parsons, 1962, p. 43-45.) 

Sandstone, gray to yellowish-gray, friable; composite of three samples. 

Index maps.

62. Stevens County. NEi NEi sec. 28, T. 32 N., R. 40 E., southwest of town of 

Chewelah. Waterman quartz sand pit. Analysis 246-B. ( Hodge, 1938c. 

p. 3, 10, 15,^2, 31, 58-60, 63.) Sand, light-tan, fine-grained; uniform 

in grain size; mineralogy; overburden 0-1.5 ft or more. Tonnage estimated. 

Index and geologic maps, detailed measured section.

63. Thurston County. Eocene. Sec. 19, T. 16 N., R. 1 W., town of Tenino. 

Tenino Stone Co. Analyst, R. W. Thatcher. ( Shedd, 1903, p. 57-61, 

134, 136, 138, JL41.) Sandstone, fine-grained, massive. Bulk density 

2.861. Mineralogy. Physical properties. Use: Dimension stone.

64. Whatcom County. Eocene, Chuckanut Formation. Sees. 13, 24, T. 37 N., 

R. 2 E., about 3 miles south of town of Fairhaven. Chuckanut quarries. 

Analyst, R. W. Thatcher. (Shedd, 1903. p. 62-65, 136, 138. HI.) 

Sandstone, bluish-gray, fine-grained, well-cemented; about 40 ft thick. 

Bulk density 2.727. Mineralogy. Physical properties. Use; 

Dimension stone, ornamental stone.

65. Whatcom County. Chuckanut Formation. NWi sec. 17, T. 40 N., R. 5 E. 

( Glover, 1936, p. 96.) Conglomerate, contains many quartz pebbles; 

80 ft thick. Possible use: Source of silica.

66. Whatcom County. SEi sec. 30, T. 38 N., R. 8 E., about 2 miles west of 

Baker Lake. Analysts, K. A. Johnson, Anthony Centenero. ( Skinner and 

others, 1944, p. 1-4, 21, 31, 58, £>6.) Diatomite, auger sample. Firing 

tests, physical properties, pH values. Index maps. Possible general use: 

Concrete admixture, filtration, heat insulation.
12 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska. Idaho. Oregon, and Washington.containing uncombined silica and clay each less than 75 percent; uncombined silica and clay

each greater than carbonate (Group B), common- and mixed-rock categories

[ Samples of mixed-rock category indicated by an asterisk (*) . Chemical analyses arranged by State, quadrangle or county, and stratigraphic position] 

Chemical analyses

SiO, __ .

AI^TL

Fe.0, .

FeO ________ .

MgO ________ .

CaO _______ .

H»OTiO, .

p.n.

MnO __ __ ____.

SO, .

c

F ___________ .

Ignition loss ____ .

Total ___ .

Class _______ .

SiO, _ .

A1.0. .

Fe.0, .

FeO ______ __.

MgO ________ .

CaO _______ .

Na20 _______ .

K.O .

H.O+ _______ .

H.O- .

TiO, .

P,0, .

MnO _______ .

SO, .

Total ____

Class _______ .

SiO, _______ .

Al,0, .

Fe,0, .

MgO ________ .

CaO _______ .

Na,0 __ __.

K,O _________ .

P.O. .

SO, _________ .

Ignition loss _ , _

Total ___ .

Class- _________

1

50B1-1

62.61

16.50

2.90

2.46

4.82

3.82

1.66

1.68

.31

.68

.31

.17

.11

AO

__ 100.36

__ 30,54,0

14

SOB 

42-2

68.52

12.19

__ 3.05

2.27

2.14

2.60

1.88

2.58

.70

.86

.35

.08

9 .65

*.06

. _ *[99.94]

44,44,0

27

508 

156-116

69.0

16.6

6.0

.43

.8

 ] '.34

.16

.21

__ 4.2

[97.7]

. _ 33.63.0

2

50B5-3

60.17 

16.02 

1.29 

5.14 

3.17 

2.33 

2.22 

2.72 

3.78 

.64 

.73 

.29 

.15

.00

'.77

*99.42 

30,52,2

15

SOB 

42-6

66.09 

14.24 

4.15 

1.71 

1.94 

2.32 

1.93 

1.98 

3.15 

.82 

.91 

.23 

.08

*.02

[99.57] 

36,52.0

28

SOB 

156-117

72.2 

12.4 

4.2 

.36 

2.0

§ .40

.13 

.28 

6.4

[98.4] 

46.48,4

*3

50B5-4

55.2 

17.2 

3.1 

4.2 

3.7 

7.4 

3.4 

1.0 

.24 

.93 

.74 

.30 

.16 

1.5

.60

2 None

99.7 

21.55.0

16

4

50B5-6

40.4 

9.4 

3.0

1.1 

8.2 

1.6 

.94

'36.6

101.2 

20.61.17

17

SOB 

42-3

59.5 

12.9 

.8 

6.0 

1.3 

3.0 

3.2 

5.6

Present

»7.3

99.6 

36.41,8

29

SOB 

156-118

69.8 

16.2 

5.0 

.43 

.8

§ .S8

.32 

.20 

4.6

[97.9] 

36,60,0

64.3 

13.9 

.9 

6.4 

1.4 

3.2 

3.4 

6.1

Present

99.6

30

SOB 

156-119

70.0 

15.0 

4.8 

.58 

.6

§ .70

.39 

.21 

4.8

[97.1] 

38.57,0

 s ***"* Alaalra

50B6-1 50B6-3

58.97 60.62 

17.0 18.4 

2.57 4.30

2.40 2.65 

1.89 .038 

1.06 1.10 

2.15 3.26

.26 .23

.80 ______

9.96 4.60

T[97.1] T [95.2] 

26.58.8 23,65.0

Alaska Continued

18 19

1

50B6-4

64.86 

15.7 

5.01

3.22 

.10 

1.16 

3.49

.23

4.18

T[98.0] 

31.58,0

20

SOB SOB SOB 

52-47 155-114 155-115

69.3 62.4 

14.7 14.8 

3.8 4.8

.80 1.9 

.72 3.8 

.92 .85 

2.6 2.2

.11 .14

.99 ______

5.4 7.9

[99.3] [98.8] 

39.53.2 31.56,6

Alaska Continued

31 32

64.2 

16.8 

5.7

1.3 

.72 

.94 

2.4

1.4

5.9

[99.4] 

28,64,1

33

SOB SOB SOB 

155-153 155-154 155-155

77.30 70.59 

9.58 13.37 

5.41 6.43 

2.51 2.72 

.90 .51 

f .65 .71 

I .43 .57

.55 .30 

2.21 4.20

[99.54] [99.40] 

54.40,0 40,55.0

70.91 

13.73

e!o9

2.40 

.40 

.46 

.37

.35 

4.75

[99.46] 

40,56,0

8

50B6-5

62.07 

17.3 

3.79

3.17 

.18 

1.14 

3.85

.27

4.83

T [96.6] 

27,61.0

21

SOB 

155-116

62.9 

17.9 

6.0

1.3 

1.0 

.84 

2.7

.13

6.6

[99.4] 

24,68.1

34

SOB 

155-156

64.86 

16.63 

6.71 

1.76 

1.59 

2.53 

.61

.12 

4.58

[99.39] 

28.65,0

9

50B23-1

55.64 

14.01 

6.66

3.76 

5.91

i 5.92

.75 

'.18

*7.17

[100.00] 

23,58,4

22

SOB 

52-233

74.0 

6.60 

3.35

1.75 

2.1

2.65

.01

[90.5] 

59,28,7

35

SOB 

155-157

64.58 

16.37 

5.07 

4.56 

1.66 

1.16 

.72

.10 

5.25

[99.47] 

30.61.0

10 11 IS 

50B23-4 50B26-1

50.74 60.08 

14.63 16.53 

7.27 7.60 

_____ .84

3.36 1.05 

7.88 .51

 « ( t:

.79 .89 

'.17 _____

*9.72 '8.0

[100.10] 100.4 

17,61,9 22.68,3

23 24

508 SOB 

154-119 154-120

80.0 64.4 

3.32 6.44 

3.08 3.16

1.4 1.7 

4.3 9.8

1.29 2.41

[93.4] [87.9] 

71,17,9 49,27,18

36 37

SOB SOB 

156-113 156-114

70.2 76.2 

12.9 12.2 

4.9 4.0 

.21 .36 

4.0 1.6

1 '.82 '.76

.28 .26 

.20 .21 

4.4 4.8

[97.9] [100.4] 

42,51.0 50,46,2

65.29 

17.96 

8.26 

.91 

1.14 

.55 

2.15 

3.15

.97

100.38

25

SOB 

154-123

77.6 

4.73 

2.67

.7 

5.8

1.90

[93.4] 

66,21,9

38

SOB 

155-152

70.31 

15.94 

4.06 

2.93 

.41 

f .28 

I .21

.67 

4.85

[99.66] 

38,58.0

 13 

50B30-5

54.80

26.68

2.66 

4.85

6.32

95.31 

25,63,0

26

SOB 

156-115

68.0 

16.6 

6.0

.14 

1.4

I § ,26

.28

.22

3.8

[96.7] 

32,62,0

39

SOB 

156-120

74.4 

13.9 

4.9 

.21

1.0

} -.«

.30 

.21 

3.8

[99.6] 

44,53.0

'Reported as P,O,. 

'CO,.

5 Includes ignition loss due to oxidation of FeO. 

4 Reported as loss, CO,. H.O. organic. 

'Sample dried at 110°F. Ignition loss includes organic 

matter, small amount -of CO,, H2O, and sulfur.

Contains some organic matter. 

T A11 elements determined spectrochemically except 

Ca, Na, and K, which were determined by flame photometer and SiO, which was determined gravimetrically. 

Sample dried at 110°C.

8 NaCl + KClj by gravimetric 

determination.

'Calculated from reported total C. 

"Sample dried at 110°C.
ANALYSES OF SAMPLES 13

Spectrographic analysis

[Looked for but not detected: 

Cr, Zn, Pd, Pt, Bi]

y

Cu -- .

Ga _ __ .

C.

La _-___-.

Pb- - - .

1

. __ O.OOOx

._ _ _ .003

._ _ _ .008

._ _ .006

. _ _ .001

.008

- _ .002

.08

. -_ .01

.08

.002

._ -_ .01

Minor element! and compounds

[Determined by using Morgan 

soil-testing system]

B------_-__--___ Trace

a ____ Trace

Cu -- Low

Zn------------ Trace

As-------------- None

Mo _____________ None

Hg_- __________ Trace

fb-.------------ None

NO! __ None

NH« ______ None

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Spectrochemical analyses

[ Value* in ppm. ND = not detected (less than 1 ppro); 

e = extrapolated valne]

V -

Ni - - - -

Ga_

Sn --.

Ba

5

______ 6 845

. - - 142

6.0

._ -_ 134

. __- 6 1680

.__ _ 8.2

5.2

172

._- - .35

._ - 1310

6

111

Q1

430 6 305

14

51

6 2810

18

45

2.8

1540

7

157

16

675 6 202

27

34

6 2630

15

04

2.5

2100

8

6 232

61

1090

26

87

27

3.4

49

3.4

2130

Alaska Alaska Continued

1. Adak quadrangle. Pleistocene or Holocene. [About 9.3, 11.5], Kanaga 

Island. Analysts, A. C. Vlisidis, W. W. Brannock; spectrogiaphic analyst, K. J. Murata. Specimen 46AC130. ( Coats, 1952, p.487,488,492. 

498,502, pi.2.) Andesite tuff or pumice, yellowish-gray, 1-2 ft thick. 

Mineralogy. Index map*. Norms, Niggli numbers, Niggli-Becke plots, 

triangular diagrams.

2. Anchorage quadrangle. Early and Late Cretaceous, Matanuska Formation. 

[Sec. 16. T. 19 N., R. 4 E.],near mouth of Kings River, Knik Arm area, 

roadcut. Analyst, H. M. Hyman. ( Eckhart and Plafker, 1959, p.9,35,36,

38,40,41,47-51,53-55,pi.7.) Shale, black, massive; locally few thin 

beds of graywacke. Mineralogy, thin-section description. Little overburden. Tonnage estimated. Index and geologic maps, geologic section. 

Firing tests, physical properties. Possible uses Lightweight aggregate. 

*3. Anchorage quadrangle. Holocene. [T. 13 N., R. 3 W.],Anchorage. Analysts, F.S. Borris, Katrine White, H.F. Phillips. Minor element analyst, 

Paul Martin. (Wilcox, 1959, p.423,458.pi.55.fig.63.) Ash, 1/8-1/4 in. 

thick. Index map. ' 'Analysis shows 4.2 percent FeO, 4.4 percent alkalies. 

1.5 percent SOS; MgO and CaO not calculated as carbonate.

4. Anchorage quadrangle. Holocene. [Sec. 8, T. 17 N., R. 1 W.]fwest end 

of Lucile Lake, Knik Arm area. Analysts, E.A. Nygaard, S.M. Berthold. 

Auger hole 1; sample 7. ( Moxham and Eckhart, 1956. p.3,6.8,14,17,19, 

pl.l.) Calcareous silt, dark-gray; depth 6 ft. Tonnage estimated. Index 

and geologic maps, columnar section. Possible uses Portland cement. 

[For another analysis from same auger hole, see sample 1, group FI.]

5. Arctic quadrangle. Permian and Triassic, part of undifferentiated Sadlerochit 

and Shublik Formations. [About 3.1, 13.7],north side of Porcupine Lake, 

Brooks Range. ( Ugolini, Tedrow, and Grant, 1963, p. 115-118.119-122.) 

Shale, black, massive. Mineralogy, pH values. C/N ratios, differential 

thermal analyses, cation-exchange capacity. 

6 - B. Quadrangle, formation, reference, remarks as in sample 5. [About 3.6,

14.0],1 mile north of eastern tip of Porcupine Lake. Shale, black. 

9, 10. Blying Sound quadrangle. Holocene. Analyst, Willard Woodstock. (Tyler. 

1931, p. 12-Jj>. 16-20.) Mud, bottom sample; contains pebbles; fotsiliferous. Mineralogy. Index maps. 

9. Lat 5.038' N., Long 148°09' W.. off southern Alaska coast. Depth of

water 330 ft. 

10. Lat 59034' N., Long 148°32' W., off southern Alaska coast. Depth of

water 336 ft.

11,12. Candle quadrangle. Holocene. [0.0-0.6, 14.65-16.1],Candle Creek. Analysts, J.R. Keistler, T.C. Brace, M.M. Moore, W.L. Hicks. ( Taber, 

1943. p. 1438, 1472, 1474, 1475, 1477-1480.) Silt. Mineralogy. 

Mechanical analysis. Index map.

11. [Calculated by compilers to include ignition loss.]

12. Analysis as reported in text, average of two or more determinations. 

13. Charley River quadrangle. Precambrian, Tindir Group. [About 20.1-22, 

0.4-0.9],bank of Tatonduk River. Analyst, J.G. Fairchild. Sample 

SOAMtllS. ( Mertie, 1933, p.347,350,369,376-^78,pl.7.) [Iron-bearing 

rock] brownish-red, hematitic, fine-grained; beds from 1 in. to 1 ft thick; 

deposit 36 ft thick. Mineralogy. Index and geologic maps.

14, 15. Fairbanks quadrangle. Quaternary. T. IS., R. 2W., 10 miles west of town 

of Fairbanks. ( P6w6, 1955, p. 709,710,712,723, pl.l.) Index map.

14. [Probably] sec. 5, Eva Creek. Analysts, Israel and Charlotte Warshaw, 

S. M. Berthold. Sample 201. Silt. Mineralogy.

15. Sec. 8, Ester Island. Analyst, R. H. Stokes. Sample 158. Silt, 

uniform texture; 180 ft exposed. Cumulative frequency curve. 

16,17. Fairbanks quadrangle. Pleistocene, Kowak Clay or Yukon Silts. [T. 2 N. 

T. 2 S., R. 1 E.-R. 7 W.]tGoldstream Creek, Fairbanks area. Analysts, 

M.D. Armstrong, Harold Hutto. (Taber, 1943, p.1438,1454,1467,1471, 

1472.1474.1475,1478-1480.1484.) Silt, bedded, fossiliferous.

Mineralogy. Mechanical analysis. Index maps; generalized section.

16. [Calculated by compilers to include ignition loss.]

17. Analysis as reported in text, average of two or more determinations. 

18-21. Healy quadrangle. Devonian. Analysts, A. C. Vlisidis, Leonard Shapiro.

( Moxham, Eckhart, and Cobb, 1959, p.69, 92. 93, 94, pi. 11.) Tonnage 

estimated. Index and geologic maps, geologic sections. Possible uses 

Cement.

18. [About 6.75-7.35, 7.5-7.7],south side of West Fork, Windy Creek 

area. Lab. No. 1916C. Argillite, brown to black; 140 ft thick.

19. [7.4-7.8, 7.9-8.1],gully of Windy Creek. Lab. No. 1937C.

Argillite, brown to black; outcrop 400 ft thick; little overburden.

20. [7.4-7.8, 7.9-8.1],gully of Windy Creek. Lab. No. 1938C.

Argillite, brown to black; outcrop 100 ft thick; little overburden.

21. [7.4-7.8, 7.9-8.1],along upper valley slopes on north side of Windy 

Creek. Lab. No. 1939C. Shale, black; and slaty argillite; 100 ft 

thick.

22-25. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8,17, T. 17 S., 

R. 7 W., unsurveyed],Mount McKinley National Park. Northern Empire 

Development Co. Analyst, H.E. Peterson. ( Rutledge and others, 1953, p.4, 

91,93,97-99, W6,112.123,figs. 1,3,35,36,38,39,41.) Index and geologic 

maps, geologic section, log of drill hole. Possible use for deposits Cement. 

22. Drill hole 6. Shale, black, very soft; depth, 235-250 ft. Depth of 

diamond-drill hole 265 ft. [For other analyses from same drill 

hole, see samples 54-58, group FI; samples 337-379, group Ff.] 

23-25. Drill hole 9. Depth of diamond-drill hole 620 ft. [For other analyses from same drill hole, see samples 4, 5.group C; sample 14, 

group E; samples 62, 63, group FI! samples 492-608, group Ff.]

23. Shale, black, and light-gray limestone; depth 610-620 ft.

24. Limestone, black, silicified; depth 580-585 ft.

25. Quartzite, gray, fine-grained, and dark-gray limestone 

containing calcite veinlets; depth 565-570 ft.

26-30. Healy quadrangle. Jurassic. [Sec. 12, T. 17 S., R. 7 W., unsurveyed],near 

Cantwell, roadcut. Samples 660, 662, 663, 665, 666. ( Warfield, 1962, 

p.3,12,13,20,22,25.) Shale, black. Channel sample, 50 ft in length. 

Index and geologic maps. Possible uses Portland cement, mineral wool.

31-35. Healy quadrangle. Jurassic( ?). [Sec. 17, T. 17 S., R. 7 W., unsurveyed], 

about 4 miles southwest of Windy. Collector, R. E. Fellows. ( Moxham, 

Eckhart, and Cobb, 1959, p.69.92.93,94,pi.11.) Tonnage estimated. Index 

and geologic map*, geologic sections. Possible uses Cement.

31. Lab. No. 10372. Sandstone, dark-gray, fine-grained; 10 ft thick.

32. Lab. No. 10373. Sandstone, gray, argillaceous and claystone with 

carbonate veinlets; 145 ft thick.

33. Lab. No.^ 10374. Claystone, black, platy, siliceous; 50 ft thick.

34. Lab. No.* 10375. Claystone. black, sandy, somewhat platy; 20 ft thick.

35. Lab. No. 10376. Claystone, black; 50 ft thick.

36, 37. Healy quadrangle. Jurassic. [Sec. 17, T. 17 S., R. 7 W., unsurveyedyimit 

of upper Little Windy Creek. ( Warfield, 1962, p.3,12,13,20,22.25.) Shale, 

gray to black, interbedded with purple-gray graywacke. Channel sample 

from outcrop. Index and geologic maps. Possible use: Portland cement, 

mineral wool.

36. Sample, 75 ft in length. 37. Sample, 100 ft in length.

38. Quadrangle, age, collector, reference, remarks, maps, and use as in samples 

31-35. [Sec. 20, T. 17 S., R. 7 W., unsurveyed],about 4.5 miles 

southwest of Windy, on Windy Creek. Lab. No. 10380. Claystone, darkgray, sandy, iron-stained; 70 ft thick.

39. Quadrangle, age, reference, remarks, map*, and use as in samples 26-30. 

[Sec. 22, T. 17 S., R. 7 W., unsurveyed],roadcut, near confluence of 

Jack River and Windy Creek. Sample 667. Shale, black. Channel sample, 

50 ft in length. From outcrop.

487-187 O - 73 - 2
14 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing uncombined silica and clay each less than 75 percent; uncombined silica and clay

each greater than carbonate (Group B), common- and mixed-rock categories Continued

Chemical analyses Continued

Alaska Continued

SiO, _________

Fe,0, ________

MgO _________

CaO _________

Na,0 _________

P.O

SO, _________

Total ___

Class __ __ _

40

506 

156-122

__ 70.0

17.2

5.0

__ .07

__ .8

 Do

__ .28

__ .21

__ 4.0

, __ 98.2

, __ 34.62.0

41

508 

156-123

72.0 

14.0 

4.8 

.21 

1.4

.28 

.22 

5.2

98.7 

42.54.1

42

506 

155-159

60.61 

14.79 

6.60 

5.60 

3.20

.18 

6.51

[99.44] 

27.60.2

43

SOB 

155-162

62.90 

17.75 

7.44 

4.10 

.96 

1.55 

.68

.07 

4.17

[99.62] 

23,69,0

44 45

SOB 508 

155-160 156-107

60.61 70.3 

15.74 19.0 

7.81 6.0 

4.59 1.2 

1.17 .20 

.91 '.41 

.59 '.38 

.20 .32 

_____ .21

_____ 4.08

[91.62] 102.1 

24.66.5 30,69,0

46

SOB 

156-99

66.5 

15.2 

6.4 

1.95 

<.05 

'.42 

'.44 

.28 

.19 

3.8

95.2 

32,59,0

47

508 

156-100

63.8 

17.9 

6.4 

1.65 

<.05 

'.38 

'.72 

.30 

.21 

4.6

96.0 

25,68,0

48

SOB 

156-101

64.7 

17.0 

6.55 

1.95 

<.05 

'.33 

'.62 

.34 

.28 

4.4

96.2 

27,65,0

49 50

508 508 

156-102 156-103

64.0 64.4 

16.9 17.45 

7.3 6.75 

1.9 1.9 

<.05 <.05 

'.24 '.27 

'.45 '.51 

.34 .27 

.14 .17 

3.8 3.8

95.1 95.6 

26,66,0 26,66,0

51

508 

156-104

63.4 

16.2 

7.5 

1.95 

<.05 

'.30 

'.57 

.40 

.24 

4.4

95.0 

26,65,0

52

SOB 

155-151

64.4 

15.6 

6.0 

1.0 

2.0 

1.4 

2.7 

.15 

.34 

4.5

98.1 

30,60.0

Alaska Continued

SiO, _ ____

F 0,'

MgO _________

CaO _________

Na,0 _ 

K,O __________

H,0+4 ________

H.O- 4 ________

TiO, _________

Ignition loss * ___

Total ____

Class

53

506 

155-177

, __ 70.83

. __ 10.79

, __ 5.05

, __ 1.34

. __ .94

. __ .83

, __ 2.02

. __ (3.00)

, (2.69)

. __ .68

. __ 6.71

. __ 99.19

. __ 46.45.4

54

506 

155-176

69.96 

12.16

6.51 

.51 

.60 

.28 

1.12

(3.91) 

(1.74) 

.72

7.87

99.73 

41.54,2

55

SOB 

155-175

60.17 

16.40

6.93 

1.94 

1.16 

.96 

2.48 

(4.16)

(2.82) 

.78

8.97

99.79 

23,66.6

56

SOB 

155-165

57.50 

17.00

7.15 

2.42 

2.03 

1.94 

2.57 

(3.63)

(2.77) 

.80

9.15

100.56 

19,68,6

57 58

508 SOB 

155-164 155-166

57.44 59.26 

17.18 15.84

7.43 7.91 

2.25 1.69 

2.02 1.62 

1.81 1.25 

2.82 2.16 

(4.32) (3.28)

(3.10) (3.46) 

.76 .82 

8.63 9.56

100.34 100.11 

19,70,5 22,67,6

59

508 

155-167

60.36 

16.80

6.65 

1.47 

1.42 

.84 

2.11 

(4.22)

(3.47) 

.76

9.51

'99.92 

23,67,6

60

SOB 

155-168

61.75 

17.21

5.08 

2.32 

1.47 

1.56 

2.40 

(2.80) 

(2.65) 

.76 

8.46

T 101.01 

26,64.6

61

508 

155-173

61.56 

15.60

7.05 

1.72 

.80 

.51 

2.86 

(3.30)

(1.90) 

.80 

9.04

'99.94 

26.65,5

62 63

SOB 508 

155-169 155-171

59.96 59.98 

15.84 16.05

7.36 7.33 

1.61 1.69 

.98 1.00 

.46 .51 

3.03 3.46

(3.05) (3.78)

(1.94) (1.95) 

.81 .72

8.67 9.26

*98.72 100.00 

24.66,5 23,67,5

64

SOB 

155-170

59.98 

16.01

7.51 

1.76 

.95 

.34 

3.30

(4.15)

(1.74) 

.80

9.34

99.99 

23,67.5

65

508 

155-172

61.03 

15.87

7.26 

1.62 

.84 

.40 

3.35 

(3.23)

(1.29) 

.80

8.78

99.95 

25.66.5

Alaska Continued

SiO, _________

Al,0, .

Fe,0, .

FeO __________

MgO _________

CaO _________

Na.O

K,O __________

H.O+ ________

H,O- ________

TiO, _ ____

SO, _

S ____________

Cl ___________

BaO __________

Total ____

Class _________

66

508155-189

59.1 

17.0 

'6.6

2.8

2.3

1.2

3.0

*6.8

98.8 

22.67.2

67

50B66-1

71.02 

6.96 

3.84

.37

13.69

95.88 

54,41,0

68

50870-2

72.16 

13.85 

2.85

.47 

3.80 

3.86 

2.43

Trace 

.36 

.41 

.20

.65

69 70

50876-1

58.81 63.48 

16.94 18.28 

'4.23 '4.56

3.64 3.92 

1.57 1.69 

3.28 3.54 

2.85 3.07

1.20 1.29

U 7.31 ______

[101.04] 99.83 99.83 

44.45.0 24,62.4 ______

71 72

50B76-2

66.33 

12.98 

5.10 

1.76 

1.47 

1.38 

2.58 

1.63

.62

Trace

U5.26

99.11 

38,55.2

70.05 

13.71 

5.38 

1.86 

1.55 

1.46 

2.72 

1.72

.66

Trace

99.11

73

50B86-1

69.9 

11.6 

4.9

5.0 

2.6 

.82 

2.4

[97.2] 

44,45.0

74 75

50B87-1

65.14 67.70 

14.42 14.98 

2.00 2.08 

3.75 3.89 

1.14 1.18 

3.18 3.30 

2.05 2.13 

2.47 2.57

.67 .70

Trace Trace

"3.71 ______

98.53 98.53 

37,48,0 ______

76

50888-16

75.78 

11.81 

.60 

.82 

.02 

.93 

4.38 

3.12 

1.70 

.26 

.17 

.04 

.03

.04 

.19

.06

Present

* 99. 95 

54.36.0

77

50688-18

76.91 

12.18 

.48 

.92 

None 

.92 

4.17 

3.15 

.66 

.24 

.18 

None

None

99.81 

55,36,0

'Gravimetric determination.

*NaCl + KC1, gravimetric determination. 

'All iron calculated as Fe,Ot. 

4 Not included in total, 

'includes water, CO,, and possible loss 

of oxygen for Fe,Ot.

*99.12 percent in text.

T 99.62 percent in text.

* 100.13 percent in text.

' 100.32 percent in text.

10 Includes gain due to oxidation of FeO.

USample dried at 110°F. Ignition loss

includes organic matter, small amount of 

CO,, HjO.and sulfur.

B Microchemical examination, weight of ZnO = 0.0015. 

Approximate weight per 20 g of rock; based on the ipectrographic analysis: CuO = 0.0002, As = 0.00005, MO|O| = 

0.00035, Cd, present, SnO, = 0.0002, Sb =0.00005. Tl, 

doubtful, PbO= 0.0004.
ANALYSES OF SAMPLES 15

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

40. 41. Healy quadrangle. Jurassic. [Sec. 22. T. 17 S., R. 7 W.. unsurveyed], 

Cantwell to McKinley Park highway, neat confluence of Jack River and 

Windy Creek. Samples 669, 670. ( Warfield, 1962, p. 3. 12, 13, 20, 

22, 25.) Shale, black; channel sample SO ft in length, from roadcut. 

Index and geologic maps. Possible use: Portland cement, mineral wool.

42-44. Healy quadrangle. Jurassic( ?). [Sec. 28, T. 17 S., R. 7 W., unsurveyed.] 

( Moxham. Eckhart, and Cobb, 1959, p. 69, 92, 93, 94, pi. 11.) Index 

and geologic maps, geologic sections. Possible use: Cement.

42. About 1.3 miles northwest of Cantwell. Collector, R. E. Fellows. 

Sample 310. Clay stone, dark-gray, siliceous. Stratigraphic 

thickness 60 ft. Tonnage estimated.

43. Along Alaska Railroad, 1 mile southeast of Windy Creek. Collector, 

R. E. Fellows. Sample 311. Clay stone, black, siliceous. Stratigraphic thickness 45 ft. Tonnage estimated.

44. Along Alaska Railroad, 1 mile southeast of Windy Creek. Analysts, 

A. C. Vlisidis, Leonard Shapiro. Sample C-l. Shale.

45-51. Healy quadrangle. Jurassic. Foggy Pass area. (Warfield, 1962, p. 3, 12, 

13, 20, ^1-23.) Shale, channel sample from outcrop 100 ft in length. 

Index and geologic maps. Possible use: Portland cement, mineral wool.

45. [Sec. 28, T. 17 S., R. 7 W.. unsurveyed],cut on Alaska

Railroad between mile 321-322. Sample 637. Shale, black; 

grading to a sandy phase.

46-51. [About 6.3-6.7, 7.2-7.4],tributary to the West Fork of Windy 

Creek.

Alaska Continued

46. Sample 606.

47. Sample 608.

48. Sample 609.

49. Sample 611.

50. Sample 612.

51. Sample 613.

52. Healy quadrangle. Jurassic(?). [About 6.3-6.7, 7.2-7.4],Windy Creek 

area. Analysts, A. C. Vlisidis, Leonard Shapiro. Lab. No. 1917 C. 

( Moxham, Eckhart, and Cobb, 1959, p. 69. 92, 93, 94, pi. 11.) 

Argillite, black, slaty; Stratigraphic thickness 400 ft. Tonnage estimated. 

Index and geologic maps, geologic sections. Possible use: Cement.

53-65. Healy quadrangle. Tertiary. (Cobb, 1951. p. 139, 142, 165-N57, 168.

pis. 18, 19.) Index and geologic maps, columnar sections. Use: Portland 

cement.

53. Between sees. 10, 15, T. 12 S., R. 6 W., bank of Healy Creek. 

Lab. No. 42. Clay.

54. SWi sec. 15, T. 12 S., R. 6 W., Cripple Creek. Lab. No. 43. 

Clay, white, plastic; at least 4 ft thick.

55. NEi sec. 16, T. 12 S., R. 6 W., Cripple Creek. Lab. No. 44. 

Clay stone; 12 ft thick.

56-60. Sec. 22, T. 12 S., R. 7 W., Healy Creek.

56. Lab. No. 39A. Claystone; 10 ft thick.

57. Lab. No. 39B. Claystone; 12 ft thick.

58. Lab. No. 39D. Claystone; 17 ft thick.

59. Lab. No. 39E. Claystone; 8 ft thick.

60. Lab. No. 40. Clay; 3 ft bed.

61-65. SEi sec. 23, T. 12 S., R. 7 W., Suntrana Creek, Healy Creek 

Valley.

61. Lab. No. 41A. Claystone, from exposure; 12 ft thick.

62. Lab. No. 41B. Claystone, from exposure; 8 ft thick.

63. Lab. No. 41C. Claystone, from exposure; 12 ft thick.

64. Lab. No. 41D. Claystone, from exposure; 14 ft thick.

65. Lab. No. 41E. Claystone, from exposure; 10 ft thick.

66. Healy quadrangle. Pleistocene. [Probably sec. 9, T. 13 S., R. 7 W., 

unsurveyed],353.3 mile, Alaska Railroad. Analysts, E. A. Nygaard, 

S. M. Berthold; collector, R. A. Eckhart. Report No. IWC-231. 

( Wahrhaftig, 1958, p. 35; Wahrhaftig and Black, 1958, p. 84-86. 114, 

pis. 1, 2, 7-10.) Clay, blue, varved. Index and geologic maps; 

geologic and structural sections.

67. Kenai quadrangle. Holocene. Sec. 21, T. 7 N., R. 12 W., 10.5 miles 

north of town of Kenai. ( Plafker. 1956, p. 25, 26, 28, 29, 31, pis. 3, 

5, 6.) Diatomaceous earth, representative sample. Deposit: When wet, 

mottled drab-brown to green; jellylike consistency. When dry, chalkwhite to light-buff; massive, friable, homogeneous. Average thickness, 

2-6 ft; maximum thickness. 12 ft. Average bulk density 0.4. Tonnage 

estimated. Photomicrographs of diatoms. Index and geologic maps, 

geologic section. Possible use: Construction, insulation.

68. Kodiak quadrangle. Holocene. 1912 eruption. Kodiak. Analyst, 

Elton Fulmer. ( Griggs, 1918, p. 16.) Ash, highly magnetic.

69-72. Livengood quadrangle. Pleistocene. (Taber, 1943, p. 1438, 1454, 1467, 

1472, 1474, 1475, 1477-1480, 1484, 1486, 1495.) Silt, fossiliferous. 

Mechanical analysis, mineralogy. Index maps, generalized cross section.

69, 70. Kowak Clay or Yukon Silts. [NEi T. 3 N., R. 1 E.],near town

of Chatanika, deary Creek. Analysts. J. O. Berry, T. C. Bruce, 

A. T. Taylor. Silt, greenish-gray when wet; contains rock 

fragments and mica.

69. [Calculated by compilers to include ignition loss.]

70. Analysis as reported in text; average of two or more 

determinations.

71, 72. [SEi T. 4 N., R. 2 W., unsurveyed],cut on Livengood Road, above 

Cushrnan Creek. Analyst, L. Webb.

71. [Calculated by compilers to include ignition loss.]

72. Analysis as reported in text; average of two or more 

determinations.

73. Mount Fairweather quadrangle. [19.4-19.7, 11.6-12.4], Glacier Bay, 

Geikie Inlet area. ( Seitz. 1959, p. 63, 73, 74, pi. 6.) Argillite, 

black, dense, hard; beds 1-6 in. thick. Mineralogy. Index and geologic 

maps.

74,75. Mount Hayes quadrangle. [Holocene. About 10.0-10.3, 7.2], Castner 

Glacier, near Richardson Highway. Analyst, A. D. Harbin. ( Taber, 

1943, p. 1438, 1472, 1474-1480.) Glacial flour; grain size, mechanical 

analysis, mineralogy. Index map.

74. [Calculated by compilers to include ignition loss.]

75. Analysis as reported in text; average of two or more determinations.

76. Mount Katmai quadrangle. Holocene, 1912 eruption. [About 6-7.5, 4.5-7], 

Valley of Ten Thousand Smokes. Analyst, E. G. Zies; collector, 

C. N. Fenner. Sample A28. ( Zies, 1929, p. 55, 56, 58.) Pumice, 

rhyolitic, light-gray. Apparent density about 0.85.

77. Mount Katmai quadrangle. Holocene, 1912 eruption. [About 9.1-9.6,

4.5-5],Katmai Volcano. Analyst, George Steiger. Record 2753. ( Wright, 

1915, p. 260; Clarke. 1915, p. 210.) Pumice. Norm.
16 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate (Group B), common-and mixed-rock categories Continued

Chemical analyses Continued

Alaska Continued

SiOj __________

A1.0, _

Fe.0, _

FeO ___________

MgO . _________

CaO __________

 NajO __________

K»0__ ___ _____

^0+ ____ 

H-0- .

TiC, .

P_0S _

MnO __________

s _____________

Cl __________ .

BaO ___________

Total _____

Class __________

78

50B88-2

76.53

12.31

.46

.96

.00

1.01

4.15

3.05

.87

.25

.17

.05

.04

.01

23

.07

. _ * 100. 16

. _ 54.36.0

79

50B88-3

75.56 

12.10 

.77 

1.06 

.59 

1.54 

4.09 

3.00 

.73 

.22 

.19 

.01 

.05 

.01 

.20 

.07

100.19 

53,36.0

80

50B88-4

71.92 

13.30 

.81 

1.97 

1.11 

2.88 

3.99 

2.53 

.67 

.16 

.33 

.08 

.07 

.03 

.17 

.07

100.09 

48,39,0

81

50B88-5

69.37 

14.28 

1.44 

2.54 

1.66 

3.77 

3.78 

2.18 

.56 

.13 

.47 

.16 

.09 

.03 

.14 

.08

100.68 

42,43,0

*82

50B88-6

64.61 

15.40 

1.97 

3.50 

2.24 

5.23 

3.78 

1.77 

.37 

.16 

.65 

.19 

.09 

.03 

.15 

.07

100.21 

35.47.0

*83

50B88-7

65.98 

14.93 

1.91 

3.11 

2.07 

4.95 

3.87 

1.74 

.37 

.11 

.59 

.13 

.09 

.04 

.13 

.06

100.08 

37.46.0

84

50B88-8

68.00 

14.58 

1.66 

2.75 

1.65 

4.07 

3.92 

1.98 

.42 

.13 

.53 

.14 

.07 

.02 

.13 

.05

100.10 

40.44.0

85

50B88-9

67.43 

'14.52 

.92 

2.95 

1.53 

4.08 

3.88 

2.16

I .67 

.55

*98.69 

41.43.3

*86 *87 88

50B88-10 50688-11

60.85 57.99 75.08 

'16.28 17.39 '12.13 

2.70 2.76 1 

4.68 4.75 / 2 '25 

3.17 3.42 .82 

6.06 7.49 1.55 

3.84 4.03 ______

1.35 1.06 ______

f .36 48 { :o? ::::::

.94 .81 .27 

_____ .22 _____

_____ .15 _____

_____ .07 _____

_____ .07 _____

_____ .05 ______

100.35 100.69 [92.10] 

29.51.0 24.54.0 ______

Alaska Continued

SiO, __________

A1.0, .

Fe.0, .

FeO _________ .

MgO .

CaO __________

Na-0 _

KjO _________ .

HO+ __ __ ___.

H-0- .

P_0S .

S ____

F _____________

Cl ____________

BaO ___________

Less O _________

Total ___ .

Class __________

*91

50B88-14

67.48

14.51

1.46

2.99

1.66

4.02

3.88

2.20

47

.15

.52

.26

.08

.14

.06

99.97

. _ 40.44.0

92

50B109-1

59.13 

15.10 

2.14 

2.71 

1.32 

3.76 

3.76 

3.54 

5.75 

1.48 

.57 

.27 

.12 

.02 

.07 

.23

f .01

99.98 

.03

99.95 

30,54,0

*93

50B109-4

60.36 

16.93 

2.53 

3.42 

2.70 

6.08 

3.72 

1.42 

1.39 

.17 

.72 

.16 

.13

f .01

99.74 

28.54,0

*94

50B109-3

61.03 

16.63 

1.73 

3.58 

1.75 

4.43 

4.52 

2.47 

2.29 

.13 

.70 

.24 

.16

.07 

.18 

.07

'.00

99.98 

.03

99.95 

30,52,0

*95

50B109-2

60.22 

17.31 

1.90 

3.60 

1.70 

4.28 

4.34 

2.41 

1.55 

.75 

.74 

.26 

.17

.07 

.15 

.07

'.02

99.54 

.03

99.51 

27.54.0

96 97

50B114-1

52.60 

12.96 

44.88

3.07 

6.41 

1.17 

1.52

Present

*16.01

98.62 

24.54.18

62.80 

15.47 

4 5.82

3.67 

7.65 

1.40 

1.81

Present

"(16.01)

98.62

98

SOB 145-1

68.2 

11.4 

2.3 

6.0 

3.8 

.94 

3.5 

.51

.72 

.08 

.24

»3.1

100.8 

45.40.0

*99 100 101

50B145-8 50B145-6 50B145-2

48.7 65.6 65.6 

14.9 14.1 15.6 

4.7 2.0 2.1 

3.4 3.8 3.4 

4.2 .49 .71 

7.8 2.8 3.4 

2.1 4.3 4.2 

.92 3.0 2.8 

_____ ___ _ .81

_____ ____ .31

1.2 .64 .78 

.22 .16 .27 

.20 .18 .12

*10.1 *3.4 '.07

98.4 100.5 100.2 

17,56.11 38.47,0 36,49,0

*89 90

50688-12 50688-13

63.56 64.36 

'15.72 15.81 

f 2.73 2.75 

\ 3.67 2.50 

2.48 1.99 

5.39 4.29 

4.00 3.62 

1.62 1.56 } " ( '5

.72 .59 

_____ .16

_____ .10

_____ .17

_____ .09

100.43 100.04 

33.50.0 33.52.0

Idaho

102 103

11B3-1 11B3-2

68.92 68.55 } » { ;::

Trace *2.43 

1.62 *4.77 

1.56 ______

4.00 _____ " _:« } '4 -26

4.74

6.00 *6.40

99.92 100.00 

42.50.3 54.33.14

includ 

tZ.tOt =0.00 percent.

*98.35 percent in text.

* Total iron.

5 Oxide of iron.

'Calculated from reported MgCO,, CaCO,.

7 Reported as water and loss.

'At 105°C.

'CO,.

" Sample dried at 110°F. ignition loss 

includes organic matter, small amounts of

CO,. HfO, and sulfur. 

11 Not included in total. 

" Ignition loss includes gain due to oxidation of FeO. 

"CO,, calculated from reported MgCO, and CaCO,.

Spectrographic analyses

[ Sample 92, elements looked for but not detected: Be,Zn,Ge,As,Cb,Ag.Cd.In.Sn.Sb,Cs,La,Ta,W ,Pt,Au,Tl,6i.Th,U. Samples 94, 95; Lab. Nos. 50-1852 SC and 50-1851 SC. 

Elements looked for but not detected: Be.Ni.La.Pb. Sample 101. elements looked for but not detected; Zn.Ge.As.Ag.Cd.In.Sn.Sb.Re.Tl.Bi]

6 __ ________

Sc ________________

V _________________

Cr ________________

Ni ________________

Co ________________

Cu ________________

Ga ________________

92

_____________ 0.006

_____________ <.0005

_____________ .01

_____________ < .0005

_____________ .001

________ ___ .002

94

0.004

.002

.01

.0002

.003

95

.0.003

.002

.01

.002

.004

101

0.002

.002

.003

.001

Sr _____________

Y _____________

Zr _____ _ ____ .

Mo __________ .

8a .

Yb ___ _ _____ .

Pb .

92

________ 0.08

________ <.001

________ .030

_________ .0005

_______ .20

_________ <.0001

_________ .004

94

0.04

.01

.02

.09

95

0.03

.01

.02

.08

101

0.03

.006

.02

.06
ANALYSES OF SAMPLES 17

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued Alaska Continued

78-90. Mount Katmai quadraugle. Holocene, 1912 eruption. [About 8.6-8.9, 

2.9-3.2],western side of valley of Katmai River, a little north of where 

Mageik Creek enters Katmai River. ( Fenner, 1950a, p. 608, 610, 614-616, 

617-622.) Pumice. Index maps, detailed measured section, correlated 

measured sections.

78. About 7 mile* south of Mount Katmai Crater, Fenner (1926). 

Analyst, C. N. Fenner. Sample A-175. (Fenner, 1926, 

p. 676. 677, 680, 681, 694, 695.) Pumice, white, coarse; 

mineralogy; almost free of phenocrysts; mixed with lapilli; 

18 in. thick. Lithology. Norm: C.I.P.W. symbol.

79. Sample A-176. Pumice, terracotta color, coarse to fine; 

3.5 in. thick. Lithology.

80. Sample A-177. Pumice, buff, coarse; 11 in. thick. Lithology.

81. Sample A-178. Pumice, yellow] 2 in. thick. Lithology.

*82. Sample A-179. Pumice, buff or reddish-brown, coarse; 9 in. 

thick. Lithology. * Analysis shows 3.5 percent FeO, 5.6 

percent alkalies; 7.5 percent CaO, MgO not calculated as 

carbonate.

*83. Sample A-180. Pumice, gray, grades from coarse to fine; 50 in. 

thick. Lithology. * Analysis shows 3.1 percent FeO, 5.6 

percent alkalies; 7.0 percent CaO, MgO not calculated as 

carbonate.

84. Sample A-181. Pumice, light-gray, grades from coarse at 

bottom to grit at top; 8 in. thick. Lithology.

85. Sample A-182. Pumice, light-gray, fine; 8 mm thick.

*86. Sample A-183. Pumice, light-gray, grit or coarse sand; 10 mm 

thick. * Analysis shows 4.7 percent FeO, 5.2 percent alkalies; 

9.2 percent CaO, MgO not calculated as carbonate.

87, 88. Analyst, C. N. Fenner. ( Wilcox. 1959, p. 458. pi. 54.)

*87. Sample A-185. Pumice, light-gray. [Used for computations . ] * Analysis shows 4.8 percent FeO ,5.1 

percent alkalies; 10.9 percent CaO, MgO not calculated as carbonate.

88. Sample A-185X. Pumice, white; selected from sample 

A-185.

*89. Sample A-186. Pumice, light-gray; 28 mm thick. ' 'Analysis 

shows 3.7 percent FeO, 5.6 percent alkalies; 7.9 percent 

CaO, MgO not calculated as carbonate.

90. Sample A-187. Pumice, dark-reddish-brown in lower part; 

purple above; 35 mm thick.

*91. Quadrangle, age, reference, maps, and sections as in samples 78-90. [About 

9.3. 3.7],about 4 miles south of Mount Katmai Crater. Sample A-505. 

(Fenner, 1950b. p. j>97.) Pumice, gray, coarse; 21 in. thick. Lithology. 

*Analysis shows 3.0 percent FeO, 6.1 percent alkalies; 5.7 percent CaO, 

MgO uot calculated as carbonate.

92. Rat Islands quadrangle. Tertiary or older, Amchitka Formation. [About

14.0-14.3, 2.6], Amchitka Island, south of Constantine harbor. Analyst, 

E. J. Tomasi; spectrographic analyst, P. R. Barnett. Specimen 51-P-27. 

( Powers, Coats, and Nelson, 1960, p. 523, 533, 534. 535, pi. 69.) 

Obsidian tuff-breccia; more than 300 ft thick. Mineralogy, index of refraction, norms. Index and geologic maps.

*93. Rat Islands quadrangle. Quaternary, Patterson Point Formation. [5.5, 10.4], 

Little Sitkin Island, stream cut 0.9 mile north of summit of 1,980 ft

mountain. Analyst, H. M. Hyman. ( Snyder, 1959, p. 171, 192, 194. 

195, pi. 23.) Dacitic tnff, light-brownish-gray, hypocrystalline. Mineralogy, norm. Index and geologic maps, geologic section. ' 'Analysis 

shows 3.4 percent FeO, 5.1 percent alkalies; 8.6 percent CaO, MgO 

not calculated as carbonate.

94,95. Rat Islands quadrangle. Late Pleistocene. Semisopochnoi Island. Spectrographic analyst, E. L. Hufschmidt. ( Coats, 1959, p. 477, 479, 489, 

492, 504, 505, 514, 515, pi. 59.) Tuff( dacitic pumice), light-gray, 

fine-grained; volume estimated. Norms and Niggli numbers. Index and 

geologic maps, geologic section.

*94. [17, 12],in gully about 2 miles south of Threequarter Cone. Analyst, 

W. I. Blake. Lab. No. ID-20150. Sample represents full thickness of deposit; 150 ft exposed. ' 'Analysis shows 3.6 percent FeO, 

7.0 percent alkalies; 6.2 percent CaO, MgO not calculated as 

carbonate.

*95. [17.2, 11.5],inold cone. Analyst, R. N. Eccher. Lab. No.

ID-19550. Fragment of pumice from thin layer. Mineralogy. 

Index of refraction. ' 'Analysis shows 3.6 percent FeO, 6.8 

percent alkalies; 6.0 percent CaO, MgO not calculated as 

carbonate.

96,97. St. Michael quadrangle. Holocene. [Abont 23.5, 9.0],St. Michael Island, 

old rifle range on point that encloses the harbor. Analyst, T. C. Brnce. 

( Taber. 1943, p. 1438. 1472, 1474, 1475, 1478-1480, 1481. 1484.) 

Siltlike mantle, fossiliferous; from depth of 20 in. Mechanical analysis, 

mineralogy. Index map.

96. [Calculated by compilers to include ignition loss.]

97. Analysis as reported in text; average of two or more determinations.

98- 101. Umnak quadrangle. ( Byers, 1959. p. 269. 280-282. 283-285. 289. pis. 39, 

40.) Norms and Niggli values. Index and geologic maps.

98-100. Analysts, S. M. Berthold, R. L. Hill. Leonard Shapiro.

98. Early to middle Tertiary. [About 17.1, 2.6], 1 mile

southwest of Russian Bay. Argillite; bulk density 2.71.

*99. Quaternary. [About 19.9, 7.9] northeast Umnak Island. 

Palagonitized tuff cone. Bulk density 2.49. ^Analysis 

shows 3.4 percent FeO, 3.0 percent alkalies, 1.2 

percent TiOjj suggests 6.2 percent more CaO and MgO 

than required for carbonate.

100. Quaternary, Okmok Volcanics. [About 19.9, 9.7], 

seacliff southeast of Ashisbik Point. Rhyodacite 

pnmice lapilli. Bulk density 2.45.

101. Holocene. [About 13.7, 2.9],north slope of Mount Vsevidof. 

Analysts, W. W. Brannock, Leonard Shapiro; spectrographic 

analyst, A.T. Myers. Rhyodacite pumice. Bulk density 2.48.

Idaho

102. Bannock County. Pliocene. [Possibly T. 9 S., R. 36 E.],Marsh Creek 

Valley. Analyst,;. E. Whitfield. Sample 35889a. (Merrill, 1886. 

p. 201, 202; Merrill. 1906, p. 134; Clarke, 1915, p. 92, 93; Mansfield, 

1920, p. 10, 11, 117. pi. 3.) Volcanic ash, gray, friable; mineralogy, 

screen size. Index and geologic maps, geologic sections. Possible use: 

Scouring and polishing preparations.

103. Bannock County. Holocene. T. 5 S., R. 33 E., near Fort Hall. ( Fremont, 

1845, p. 163; Mansfield, 1920, p. 10. 11, 118. pi. 3.) Alluvium 

( clayey soil mixed with fine sand flight-gray, fine. Index and geologic 

maps, geologic sections.
18 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska. Idaho, Oregon, and Washington.containing uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate (Group B), common- and mixed-rock categories Continued

Chemical analyses Continued

Idaho Continued

SiOj ____________

AljO,

Fe^O, ___________

MgO ____________

CaO _____________

KjO _________ _ _

TiO, ____________

MnQ. ____________

COj ____________

s

V,05 ____________

Cr _

MoO, ___________

Organic matter _____

Total ________

Class _______ _ _

*104

11B4-99

45.53

7.41

1.44

20.11

*10.30

4.87

7 .09

.05

*10.35

[100.15]

32.31.11

105

11B4-6

45.4

10.2

1.7

3.6

.6

3.0

.4

2.1

.86

.02

14.4

'13.3

[95.6]

25.60.0

106

11B4-9

54.8

12.6

3.9

3.5

1.6

.2

.5

.75

< 01

4.2

13.0

[95.1]

28,60,0

107 108

11B4-18 11B5-2

73.20 67.3

13.10 16.7

.37 1.7

.38 .2

.30 2.0

6.20 ______

5.0

.03 ______

.06 _____

9 q

[100.0] [97.2]

49.42.0 36.57.4

*109 110

11B6-3 11B9-1

37.7 69.06

6.2 15.91

*2.4 1.21

.3 1.09

23.8 None

4 3.96

_____ 1.98

_____ .75

17.0 Trace

Trace

_____ None

3.8 ______

*10.6 ______

[101.8] *98.78

24.35.3 40.49.2

111

11B9-7

54.2

10.9

1.2

2.5

5.3

8.8

1.6

2.6

2.2

.46

.11

.08

9.9

"[100.6]

34.35.21

112

11B9-3

67.80

15.13

4.61

1.80

1.19

8.02

98.55

36.57.6

113

11B10-1

72.5

23.0

.1

.05

1.6

[97.2]

32.67.0

*114

11B15-137

'23.1

4.3

2.5

16.5

25.5

[71.9]

(13.42)2

*115

11B45-44

39.37

6.23

1.18

21.96

*13.37

3.87

7 .07

.07

*13.53

[99.65]

28.31.8

*116

1IB45-42

30.49

5.64

.85

25.75

*18.46

2.50

7 .10

.06

*10.91

[94.76]

21.28.5

Idaho Conti nued

SiO, ____________

AljO, ___________

Fe,0, ___________

FeO _____________

MgO ____________

CaO _____________

NajO ____________

KjO ___ _

H,0+ ____ ___ ___

TiO, ____________

PjOg ____________

CO, ____________

VjOg ____________

F _______________

LessO ___________

Total ________

Class ____________

*117

11B15-268

B 22.2

3.4

1.4

34.6

___ 

.02

2.08

M15.6

101.70

2 QQ

[100.8]

(15,24)14

*118

11B15-8

33.5

6.1

*2.25

.44

22.9

15.3

fin

.65

7 .019

913.6

[100.2]

20.40,2

*118a

11B15-7

36.2

6.7

*2.59

.53

18.6

10.2

.83

9 16.0

[100.3]

21,44,10

*119 *120

11B15-6 11B15-14

32.2 36.4

6.4 7.2

*2.70 *2.63

.42 3.10

19.9 19.4

U ft. no

1 02 37

121 122

11B16-8 11B16-9

71.43 73.7

11.63 10.6

.84 1.1

.12 .14

.65 1.0

1.10 .92

6.22 5.0 i } 

1Q IB

.01 .02

03 .02

ns>

123

11B16-10

66.4

14.8

2.5

1.8

1.9

1.1

1.1

6.1

2.9 <

.62

.12

.04

.06

7 .018 7 .028

7

A(\ ty co

*19.2 *13.7

[101.9] [102.1]

18,48,4 21,34,16

.09 _____

QQ f_d

'.04 ______

"[99.80] 100.2

50.41,0 54.38,0

99.4

37.49.0

124

1 IB 16- 16

71.24

12.72

2.92

1.09

.87

2. ft.

3.16

4.47

.33

.09

.01

.03

99.64

"[99.63]

45.42,1

125

11B19-21

71.73

14.79

.30

.38

.21

.77

2.32

5.98

1.38 

1.31

.39

.09

.01

.02

99.68

45,44,0

126

11B19-17

73.70

13.58

1.60

.66

.09

.20

.91

5.02

3.53 

.85

.12

100.26

48.45.0

127

11B23-1

85.21

8.75

.038

.00

.69

2.00

3.14

.015

[99.84]

70.24,0

128

11B28-8

68.5

22.0

1.0

.07

.0

[ B .72

7.8

100.1

28,71,0

See following page for footnotes.

[ C = 1-5 percent, D = 0

109

Be__ ___ ______

Mg ______

Sc _____ ______

Ti __ D

V _____ D

Cr _____ D

Ni_ E

Co ____ F

Cu ____ F

1-1 percent,

Cr =0.0002.

114

E

D

C

D

F

E

ND

E

E= 0.01-0 1 percent , F

Cu = 0.0017. Sr = 0.002

118

E

D

D

E

EF

118a

G

D

F

E

D

F

F

Spectrogr

= 0.001-0.01 percent

iphic analyses

G =< 0.001 percent, ND = not detected . Sample 107: Quantitative spectrographic analysis,

; sample 114, elements looked for but not detected: Li.Ga

119 120

E E

D D

D D

D D

F F

Zn ____ _ __ ____

As _______ _ ___

Y _____________

Zr __ _________

Nb ____________

Mo ____________

Ag ____________

Cd ____________

Sn ___ _ _____

Pb ______ __

109

D

F

E

E

.Ge.In.Sb,

114

E

E

E

E

F

ND

ND

ND

ND

Ta.W.Pt.Au.Hg.Bi]

118

E

E

E

E

F

F

E

E

118a

E

E

E

E

F

G

E

E

E

E

119

E

E

E

E

E

F

E

E

120

F

E

F

F

E
ANALYSES OF SAMPLES 19

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

*104. Bear Lake County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. [T. 9 S., R. 45 E.],near Georgetown. Central Farmers 

mine. ( Emlgh, 1958, p. 27.29-31, fig. 1.) General: When fresh, 

phosphatic dolomitic shale, black, fine-grained, dense; when weathered, 

shale, brown, soft; fossiliferous; 17-24 ft thick; contains pellets. Mineralogy, thin-section description. Sample: Phosphatic shale; 12 ft above 

bottom of bed. Index map. ^Analysis suggests 23.9 percent phosphorite, 

2.2 percent more MgO and CaO than required for carbonate.

105, 106. Sear Lake County. [Phosphoria Formation, Meade Peak Phosphatic Shale 

Member. T. 14 S., R. 43 E.],Paris and Bloomington Canyons. ( Ravitz 

and others, 1949, p. 308. 309, 320.) Use: Source of vanadium. 

105. Siltstone. 106. Shale.

107. Bear Lake County. Jurassic, Twin Creek Limestone. [About T. 11 S., 

R. 45 E.], Preuss Creek. Analysts, S. D. Botts, M. D. Mack, 

H. H. Thomas; spectrographic analyst, Sol Herman. Lab. No. 152648. 

( Gnlbrandsen and Cressman, 1960, p. 458-461.) General: Altered tuff, 

pale-green or grayish-green, aphanitic; bed 5 ft thick. Sample: Chert. 

Mineralogy. Index map.

108. Benewah County. Miocene, Utah Formation. Sec. 11, T. 46 N., R. 3 W., 

railroad cut on east shore of Benewah Lake. Analyst, J. H. Jonte. 

( Skeels. 1920, p. 25, 26; Hubbard, 1956a. p. 23, 24, pi. 1.) General: 

Clay, white; 8 ft thick; overburden, 1 ft. Sample: Clay, gray, yellow, 

fine-grained. Physical properties, firing tests. Index map. Possible use: 

Face brick, terra cotta, pottery, refractories, stoneware.

*109. Bingham County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. Sees. 2, 11, 14, 15, 22, T. 4 S., R. 37 E.. Fort Hall. Gay 

mine. Collector, A. L. Service. Sample 12. ( Mabie and Hess. 1964. 

p. 2-4,7,8,9,12,13,47,58,59,78.79; Service and Popoff. 1964, p.6,11, 

12,28,_31-~33,63.) Phosphorite, brown, fine-grained, argillaceous, siliceous; 11.3 ft thick. Mineralogy. Tonnage estimated. Index map, 

compositional classification triangle: cumulative curves of grain lit*; 

differential thermal curve. Physical properties, beneficiation tests. Possible use: Agricultural, chemical, metallurgical. *Analysi» suggests 

39.4 percent phosphorite. [For other analyses from same measured section* 

see samples 89, 90, group P.]

110. Bonner County. Precambrian. Prichard Formation. [T. 55 N., R. 1 W.], 

east shore of Pend Oreille Lake, north of Granite Point. Analyst, 

J. G. Fairchlld. Record C-405. ( Gillson, 1930, p. 111. 115; Wells. 

1937, p. 28.) Argillite. Index map.

111. Bonner County. Precambrian, Wallace Formation. T. 56 N., R. 2 E., 

southeast end of Howe Mountain. Quarry. Analysts, P. L. D. Qmore, 

S. D. Sons, I. H. Barlow, and Gillison Chloe. Lab. No. 155261. 

( Harrison and Jobin, 1963, p. K-3. K-15. K-37. pi. 1.) Calcareous 

interlaminated green siltite and argillite. Index and geologic maps, 

geologic sections.

112. Bonner County. [T. 54 N., R. 1 W.],about 6 miles east of town of

Bay view, Pend Oreille Lake. International Portland Cement Co. ( Shedd, 

1913, p. 175. 176.) Shale. Use: Cement.

113. Bonneville County. Pliocene, Salt Lake Formation. Sec. 13, T. 1 N., 

R. 38 E., about 3 miles southeast of town of Ammon. ( Savage, 1961, 

p. 58, j>9, figs. 3, 9.) Pumice; in beds 60-80 ft thick. Geologic map, 

correlated columnar sections.

*114. Caribou County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. NWiNEi sec. 10, T. 8 S., R. 44 E.. Mabie Canyon. Spectrographic analyst, D. M. Mortimer. Sample VEM-319-47. ( McKelvey 

and others, 1953b, p. 1, 2, 4, 14-18. 19. 23, pi. 1.) Phosphorite, 

argillaceous; 160.1-160.9 ft from top of member. Trench sample. 

Mineralogy. Index maps, detailed measured section. * Analysis suggests 

38.2 percent phosphorite. [For other analyses from same measured section, 

see samples 260-284, gronp P. ]

115, 116. Caribou County. Phosphoria Formation, [Meade Peak Phosphatic Shale 

Member. Sees. 2, 11, T. 8 S., R. 42 E.] Conda mine. ( Emigh, 

1958, p. 27, 28, 30. fig. 1.) General: When fresh, phosphatic dolomitic shale, black, fine-grained, dense; when weathered, shale, brown, 

soft; fossiliferous; 17-24 ft thick; contains pellets. Mineralogy, thinsection description.

*115. Sample S2. [Phosphatic shale], 4.5 ft above bottom of bed. 

^Analysis suggests 31.0 percent phosphorite.

*116. Sample S15. [Phosphatic shale], 12 ft above bottom of bed.

^Analysis suggests 42.8 percent phosphorite.

*117. Caribou County. Phosphoria Formation, Meade Peak Phosphatic Shale 

Member. SiSWi sec. 34, T. 9 S., R. 45° E., 15 miles by road 

northeast of Georgetown, Deer Creek-Wells Canyon area. ( Deiss, 1949, 

p. 61,62,64,83,85,^1,94,pis. 5,6; Low ell, 1952, p. 2,9,12,13,15,16, 

21-27,36.46,47,pis.1,2.) Phosphorite, dark-gray, massive, ovulitic, 

nodular. Mineralogy. Photomicrographs. Tonnage estimated. Index 

and geologic maps, geologic sections, correlated columnar sections. 

Possible use: Source of elemental phosphorous and vanadium. * Analysis 

suggests 47.3 percent phosphorite. 

118 - 120. Caribou County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. Sec. 29, T. 10 S., R. 45 E., near Georgetown. ( Town, 1966, 

p. 2-6, 7, 10, 12.) Phosphatic shale, black, nonfriable. Trench sample. 

Mineralogy, thin-section description. Geologic section. Compositional 

triangle. Beneficiation tests.

1*118. Field No. CF-5. Phosphatic shale, dark-brown, nonfriable; 

7.0 ft thick. ^Analysis shows 0.6 percent S; suggests 36.3 

percent phosphorite.

*118a. Field No. CF-6; 8.0 ft thick. ^Analysis shows 0.8 percent S; 

suggests 23.6 percent phosphorite.

*119. Field No. CF-7; 7.5 ft thick. "Analysis shows 1.0 percent S; 

suggests 25.5 percent phosphorite.

*120. Field No. CF-11; 9.1 ft thick. * Analysis suggests 21.5 percent

phosphorite.

121- 124. Cassia County. Goose Creek district. Index and geologic maps, geologic 

sections, correlated columnar sections.

121. Late Miocene and early Pliocenet?), PayetteC?) Formation.

NEiNWi sec. 2, T. 15 S., R. 20 E. Analysts, L.N. Tarrant. 

E. J. Tomasi. Sample B413. ( Mapel and Hail, 1959, 

p. 225, 227, 231.) General: Volcanic ash, light-gray to 

white; friable; beds from a few inches to more than 100 ft 

thick; interbedded with shale.

122, 123. Pliocene, Salt Lake Formation. NE±SEj sec. 24, T. 13 S.. 

R. 21 E. Analysts, P. L. D. Elmore, K. E. White. 

S. D. Botts; collectors, N. M. Denson, J. R. Gill. Samples 

147766 and 147767; drill hole Cl. ( Mapel and Hail, 1959, 

p. 230, 231. 232.) General: Volcanic ash, white to 

light-gray, friable. Photomicrograph.

124. Salt Lake Formation. Sec. 32, T. 14 S., R. 20 E. Analyst, 

Jean Theobald; collector, H. A. Powers. Sample B331. 

( Mapel and Hail, 1959. p. 218, 229-231, pis. 46, 47, 49.) 

General: Welded tuff, black to dark-reddish-brown, dense, 

stony; mineralogy. Photomicrograph.

125. Custer County. Eocene*?), Oligocene and earl/?) Miocene, Challis

Volcanics. [T. 6 N., R. 22 E., unsurveyed],about 25 miles due west of 

town of Darlington, near Ramey Creek. Analyst, F. H. Nenerburg. 

Lab. No. E 1805. ( Ross, 1962. p. 73, JK>, figs. 1, 2.) Rhyolite tuff. 

Index maps.

126. Custer-Lemhi-Valley County. Challis Volcanics, possibly Germer Tuffaceous Member. [T. 13 N., R. 16 E., unsurveyed],near town of Bonanza, 

head of Yankee Fork. Analyst, J. G. Fairctiild. Records C-983 and 

C-1003. ( Wells. 1937. p. 26. 27; Ross. 1962, p. 73, 83, 86, figs. 1, 

2.) Tnff. Index maps.

127. Gem County. [T. 6 N., R. 1 W.],about 3 miles south of town of Emmett. 

Gem Silica Co. ( Kelly and others, 1956, p. 54j Carter, Kelly,and 

Parsons, 1962, p. 20, ^1.) Sand. Index map. Possible nse: Glass.

128. Kootenai County. Miocene. SEi sec. 8, or SWi sec. 9, T. 50 N..

R. 4 W., about 2-3 miles northwest of town of Coeur d'Alene. Roadcut, 

Stockton deposit. Analyst, R. V. Lindquist. ( Scheid, 1952, p.5,6,8,9, 

^4-16,18,20,pis.1.2.fig.1,table 2.) Clay, pink, tan, and white; abont 

10-20 ft thick; overburden 1-2 ft of soil. Mineralogy. Index and geologic 

maps, geologic section. Physical properties, firing tests. Possible use: 

Source of aluminum, brick, terra cotta, draintile.

Footnotes of analyses on preceding page:

'Acid insoluble.

1 Calculated from reported Fe, P, C, or F.

*Soda. 

4 Potash.

* Reported as recalculated from Mn.

'Manganese oxide.

'Reported as V.

'ignition loss less calculated organic.

' At 1,000° C.

11 Cl, F, None;ZrOi. 0.03 percent, accuracy of 

determination, 0.005 percent; contains organic 

carbon, probably graphitic.

"Contains FeS,, 0.76 percent.

"insoluble.

"contains sodium; most of alkali thought 

to be potassium.

u Moisture at 105°C.

u Noncarbonate carbon.

"ignition loss an approximate measure of 

organic matter content if the rock does not 

contain carbonates( Lowell, 1952, p. 45).

1T 8aO = 0.07 percent.

u8aO = 0.10 percent; Cl = 0.02 percent.
20 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska. Idaho. Oregon, and Washington,containing uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate (Group B), common- and mixed-rock categories--Continued

Chemical analyse* Continued

Idaho Continued

SiO, ______________

Al,0, _

Fe»O. __

FeO ______________

MgO ______________

CaO ______________

Na,0____ _____

K|O _______________

H,0- 

TiO, _____________

P,0, ______________

SO, 

MnOj _ 

Total _________

Class ______________

129

11B29-1

70.6

_____ 11.8

_____ 2.58

_____ .58

_____ 1.74

_____ 6.32

_____ 7.8

_____ [-101.4]

_____ 47.44.4

130

11629-20

66.5 

22.2 

1.4

.21 

.45 

.26 

1.15 

«.T8

8.7

101.6 

26,73.1

131

11B29-21

68.3 

20.5 

1.9

.36 

.38 

.32 

1.59 

'.57

7.2

101.1 

30,68,1

132 133

11629-23 11629-22

71.9 71.1 

19.7 20.0 

.29 .6

.14 .22 

.19 .28 

.00 .37 

1.01 .58 

*1.19 *.46

7.3 7.4

101.7 101.0 

37,63.1 35.64.1

134

11629-24

72.8 

19.5 

.71

.07 

.09 

.03 

1.28 

*.79

*.oo

6.0

101.3 

38,62,0

135

11629-25

69.1 

20.0 

1.9

.07 

.38 

.05 

.17 

*1.07

7.7

[100.4] 

31.68.1

136 137

11629-9 11629-43

68.60 73.9 

20.25 17.8 

.77 2.5

.02 ______

.38 ______

.24 ______

.10 ______

1.95 ______

'.52 _____

.91 .1

.02 ______

.02 ______

.009 ______

6.14 4 4.5

99.93 [98.8] 

32,64,1 40,59,0

138

11629-41

69.9 

19.7 

2.6

.3

4 6.3

[98.8] 

32,66,0

139

11629-46

65.9 

20.6 

3.6

.7

4 6.8

[97.6] 

25,71.0

140

11629-18

66.79 

22.44 

1.10 

.07 

.40 

.83 

.04 

.84 

».76 

.35 

.02 

.01 

.004 

6.30

99.95 

26,71.1

Idaho Continued

141 142

11B29-34 11629-33

SiO, __ _ __ _ __ _

AlA 

Fe,0, 1

FeO ___________ ]

MgO_ ____________

CaO _____________

Na,0 ___ _ _ __ .

K,0 _____________

H,O* ___________

H.OTiO, ______ _ ____

P,0, 

MnO _ - __________

CO, ____________

Total _______

Class _____ __ _

68.57 72.04 

22.51 20.01

2.28 1.24 

_____ .09

.23 .31

 .64 ______

"6.61 "6.76

100.84 100.45 

26.74,0 35.64.1

143

11B35-7

57.30 

12.51 

f 3.55

3.02 

11.66

j T .22

B11.74

100.00 

31.42,26

Idaho Conti nued

SiO, ____________

At.O.

Fe,0, ___________

MgO_ ____________

CaO _____________ 

Na,0 ____________

K,0 _____________

H,0+ I

H,0- J

'Moisture below 100"C 

I Atl08"C. 

*MnO. ' 

4Atl.OOO°C. 

5 Acid insoluble. 

* Total Fe.

Be ______________

a _ ____

Sc ______________

V ______________

Cr ______________

Ni ______________

Co _____________

Cu _____________

154 155

11B42-4

68.29 73.52 

13.25 11.85 

1.62 .71 

.82 .13 

2.17 .65 

2.79 2.27 

4.92 6.16

2.34 2.87

156

11B44-2

70 

16 

.0

1.0

144

11635-41

'52.4 

| 11.2

3.3 

16.7

"13.8

145 146

11B35-8 11840-1

68.95 70.4 

f 14.33 17.6 

\ 1.17 2.2 

1.23 .27 

.47 .26 

2.13 .17 

f 5.08 1.2 

\ 2.58 4.9 '5;S} «

.42 .64 

.10 .06 

Trace .01 

_____ .05

97.4 M 100 .48 100.0 

( 34.33)24 42,46.0 37.56.0

Oregon

157 158 159

3661-46 36B4-4

72.50 

9.93 

4.58 

.54 

.60 

.33 

.16 

f 5.83 

\ '4.78

81.27 64.98 

11.13 21.27 

5.02 *3.63 

.61 .62 

.66 .57 

.36 .90 

.18 ______

147

11B40-2

62.9 

17.6 

1.7 

3.8 

2.9 

.79 

1.6 

4.3

2.8

.69 

.16 

.04 

.84

100.1 

30.55.2

148

11640-3

74.7 

13.6 

2.8 

.60 

1.3 

.18 

2.8 

3.1

1.2

.48 

.07 

.01 

.05

100.9 

48,45.0

149 150

11640-4 11640-5

70.3 81.7 

15.3 9.4 

3.6 1.9 

.62 .27 

.71 1.0 

.52 .23 

1.4 3.1 

4.1 2.0

1.5 .51

.59 .34 

.20 .11 

.01 .01 

.81 .05

99.7 100.6 

39,52,2 63,31,0

Idaho Continued

154 155 156

11642-4 11644-2

TiO, _ __

CO, 

SO, 

Cl _____

Total _ 

Claw ____

[96.20] 

43.42.6

1 Alkalies and undetermined. 

'Above 105"C. 

*At212°F. 

"ignition loss. 

u Ignition loss, includes 

moisture at 212°F.

Semiquantitative spectrographic analyses

146 147

O.OOOx O.OOOx 

.OOx .OOx 

.OOx .OOx 

.OOx .OOx 

.OOx .OOx 

.OOx .OOx 

.OOOx .OOx 

.OOx .OOOx

148

O.OOOx 

.OOx 

.OOOx 

.OOx 

.OOx 

.OOx 

.OOOx 

.OOOx

149

O.OOOx 

.Ox 

.OOx 

.Ox 

.OOx 

.OOx 

.OOOx 

0

150 151

0 O.OOx 

.OOx .OOx 

.OOOx .OOx 

.OOx .OOx 

.OOx .OOx 

.OOOx .OOx 

0 0 

.OOOx 0

Sr _______

Y _______

Zr ______

Ba ______

La ______

Yb ______

Pb ______

146

O.OOx 

.OOx 

.Ox 

.Ox 

.OOx 

.OOOx 

.OOx

_____ »13

_____ [100]

_ _ __ 42.56.2

151

11640-6

66.0 

17.1 

1.8 

1.2 

3.9 

.22 

.70 

5.6

3.1

.67 

.10 

.01 

.05

100.4 

34,54,0

152

11640-8

54.2 

13.2 

1.1 

3.1 

6.0 

5.6 

.80 

3.8

2.6

.56 

.14 

.14 

8.6

"100.2 

30.41,18

153

11642-1

52.48 

7.10

| *2.63

2.93 

14.60 

.93 

1.76

4.96

.38 

.20 

Trace 

12.40

100.37 

37,30.27

Oregon Continued

157 156

3661-46

0.45 

.09 

.03 

.04

99.86 

50,48,0

0.50 

.10 

.03 

.04

99.90

'include* water, 

"loss on ignition, chiefly CO.. 

"s.UfO.SrO. reported as trace; ZrO,=0. 

BaO = 0 .08 percent; Cl and F reported as ? . 

"FeS, = 0.31 percent, 

 includes FeO.

147 148

O.OOx O.OOx 

.OOx .OOx 

.Ox .Ox 

.x .Ox 

0 0 

.OOOx .OOOx 

.OOx .OOx

149

O.OOx 

.OOx 

.Ox

.X

0 

.OOOx 

0

150

O.OOx 

.OOx 

.OOx 

.Ox 

0 

.OOOx 

.OOx

159

3664-4

*8.11

100.08 

23.74.2

03 percent;

151

O.OOx 

.OOx 

.OOx 

.Ox 

0 

.OOOx 

0
ANALYSES OF SAMPLES 21

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

129.

Idaho Continued

Latah County. [Miocene.] SW* sec. 11, T. 39 N., R. 1 W., or SEl, 

sec. 6, T. 39 N., R. IE., about 5 miles south of town of Helmer, 

railroad cut. ( Hubbard, 1956a, p. 19,^0, pis. 1, 2.) Clay. Index and 

geologic maps.

130- 133. Latah County. Miocene. [T. 39 N., R. 3 W.],near town of Troy. Analyst, 

R. V. Lundquist. ( Tullis and Laney, 1933. p. 481. 483. 485-491, 493. 495.) 

Clay, white or tan. Mineralogy. Index map. Use: Face brick, firebrick, 

terra cotta, sewer pipe, stoneware, draintile, roofing tile, structural tile.

134, 135. County, age, analyst, reference, map, and use as in samples 130-133. 

[T. 39 N., R. 4 W.], near town of Joel. Clay, white. Mineralogy.

136. Latah County. Miocene, Latah Formation. NEsNW^ sec. 16, T. 40 N.,

R. 1 W., 0.5 mile north of Helmer. A. P. Green Co. pit. Sample SC-2. 

( Ponder and Keller, 1960, p. 44-47, 50. 53-55. 5]_, 58.) Clay, white. 

sandy: 15 ft exposed. Mineralogy, microscopic description. Index and 

geologic map, diagrammatic section. Size analyses, mineralogical 

analyses. Possible use: Fireclay.

137- 139. Latah County. Sec. 24, T. 40 N., R. 3 W., about 3 miles southwest of

town of Deary. ( Hosterman and others, I960. p. 2, 3, 7-10, 16, 17, 19, 

20, 21, 24. 29, 37, 89, 111, 112, pis. 1, 2. 6.) Clay, micaceous. 

Mineralogy. Weighted composite sample; sample taken at about 5 ft 

intervals or where clay showed a marked change; overburden averages 

15.9 ft. Tonnage estimated. Index and geologic maps, correlated 

columnar sections, geologic sections. Log of drill hole. Possible use: 

Source of alumina, refractory brick, draintile.

137. [Miocene.] NE* sec. 24. Drill hole Ol- 108. Clay, gray and 

tan-gray, sandy; depth 91.3-135.4 ft.

138. [Miocene.] NE? sec. 24. Drill hole O1-209. Clay, varicolored, 

sandy; depth 68-114.2 ft.

139. Middle to late Miocene, upper part of Latah Formation. SE? 

sec. 24. Drill hole O1-209. Clay, varicolored, some beds 

sandy; includes 0.6 ft bed of limonite; depth 10.5-84.6 ft.

140. Latah County. Miocene. NWiNW? sec. 33, T. 40 N., R. 3 W., about 

4 miles northeast of town of Troy. ( Ponder and Keller, 1960, p. 44, 

45, 47-50, 54, 55, 57, 58.) Clay, white to cream, poorly indurated; 

overburden, 1-20 ft. Mineralogy, microscopic description. Index and 

geologic map, size distribution analyses. Possible use: Fire clay. [For 

analysis of parent rock, see sample 68, group M.]

141, 142. Latah County. Miocene. Northwest corner sec. 33, T. 40 N., R. 3 W., 

about 4 miles north of Troy. Idaho Firebrick and Clay Co., Benson pit. 

(Hodge, 1938e. p.495, 496, 503, 610,639-643.644,646, 649.) General: 

Kaolin, white, fine-grained; maximum depth in pit, 80 ft; overburden, 

mineralogy. Tonnage estimated. Index and geologic maps, geologic 

section. Use: Brick. Possible use: Paper filler, ceramic whiteware.

141. Sample: Clay, gray. 142. Sample: Clay, white.

143. Nez Perce County. Late Triassic, Martin Bridge Formation, shaly member. 

NW? sec. 34, T. 32 N., R. 5 W.. about 30 miles south of town of 

Lewiston, Lime Point. Analyst, A. B. Lort; collector, H. S. Gale. 

Lab. No. 3745. ( Eckel, 1913, p. 136-^38; Hubbard, 1956b. p. 12, .13, 

fig. 2; Savage, 1965, p. 18a. 20, pis. 1, 2, fig. 1.) Shale; average 

of 45 samples from exposures. Tonnage estimated. Index and geologic 

maps, geologic section. Use: Portland cement.

144. Nez Perce County. Late Triassic, Hurwal Formation. Sec. 14, T. 32 N., 

R. 5 W., 1.5 miles up Billy Creek. Analyst, George Hsn. Sample 

3Dh S L 166. ( Savage, 1965, p. 18a. 18b. 18c, 19. 20, pi. 1, fig. 1.) 

Shale, calcareous. Tonnage estimated. Index and geologic maps, 

geologic section. Possible use: Portland cement.

145. Nez Perce County. Holocene. [T. 30N..R. 1W.] Cottonwood Canyon, 

Cottonwood Creek. Analyst, W. F. Hillebrand. Record 1906. (Russell, 

1901a, p. 33,34,pls.l,2j Clarke, 1904, p.158.) Volcanic dust, white, 

fine; from few inches to 6 ft or more thick. Index and geologic maps.

Idaho Continued

146-151. Shoshone County. Precambrian. Analysts, H. F. Phillips, P. L. D. Elmore, 

K. E. White; spectrographic analyst, J. D. Fletcher. ( Ross, 1963, p. 27, 

28, 48, 50, 57; Hobbs and others, 1965, p. 5, 23-28, 35, pis. 1, 3, 4, 

6.) General mineralogy. Index and geologic maps, geologic sections. 

Triangular diagram.

146. Upper part of Prichard Formation. Probably sees. 9, 10, T. 48 N., 

R. 5 E., unsurveyed, near town of Burke. Lab. No. 54-418SC. 

Argillite and quartzite, laminated.

147. Prichard Formation. Probably T. 47 or 48 N., R. 2 E., Pine Creek 

Road. Lab. No. 54-423SC. Argillite.

148. Burke Formation. [NWi T. 48 N., R. 6 E.] Glidden Lakes.

Lab. No. 54-417SC. Quartzite or subgraywacke. Generalized 

measured section.

149. St. Regis Formation. Probably sec. 32, T. 48 N. t R. 5 E. At 

portal of Rock Creek adit. Lab. No. 54-416SC. Argillite, 

medium-gray. Surface sample.

150. St. Regis Formation. [Sec. 8, T. 50 N., R. 5 E.],near Murray, 

Little Baldy Mountain. Lab. No. 54-429SC. Argillite, 

quartzose, or subgraywacke; medium gray.

151. Lower part of Wallace Formation. Probably sec. 3, T. 47 N.,

R. 4 E., or sees. 27, 34, T. 48 N., R. 4 E., Placer Creek Road. 

Lab. No. 54-420SC. Argillite interbedded with quartzite.

152. Shoshone County. Wallace Formation. Sec. 31 or 32, T. 55 N., R. 2 E., 

outcrop along road from Summit Campground. Analysts, P.L.D. Elmore, 

S. D. Bolts, I. H. Barlow, and Gillison Chloe. Lab. No. 155262. 

( Harrison and Jobin. 1963, p. K3, K15. K37. pi. 1.) Blue-gray 

interlaminated dolomitic siltite and dolomitic argillite. Index and 

geologic maps, geologic sections.

153. Twin Falls County. [T. 9 S., R. 18 E.], near town of Shoshone Falls.

Analyst, W. F. Hillebrand. Record 1950. ( Russell, 1902, p. 136. 137- 

139; Clarke, 1904, p. 367.) Aeolian sand, light-yellow, fine, homogeneous. Physical properties. Index and geologic map.

154,155. Twin Falls County. [T. 10 S., R. 13 E.], town of Castleford. ( Williamson 

and Burgin, 1960, p. 4J Pumice. Mineralogy.

154. Pumice. 155. Glass fraction of the pumice.

156. Washington County. [T. 11 N., R. 6 W.], 10 miles west of town of Weiser; 

exposed in creek bank. Sample 79. ( Skeels, 1920, p. 67, 69.) Shale, 

gray, fine-grained; 6-ft bed; overburden, 10 ft. Index map. Physical 

properties, firing tests. Possible use: Face brick, potteiy, terra cotta.

Oregon

157, 158. Baker County. Miocene, probably correlative of Mascall Formation. 

SEiNWi sec. 11, T. 8 S.. R. 42 E., about 20 miles east of town of 

Baker,on Clover Creek. Analyst, E. T. Erickson. ( Moore, 1934a, p. 5, 

6, _llj Moore, 1937, p. 53-55, 109, 114, pis. 1, 6; Wells, 1937, p. 45.) 

Diatomite; white when dry, yellow when wet; contains pebbles; from bed 

9 ft thick; section, 15 ft thick. Ridgway color notation. Index map, 

detailed measured section, microscopic examination; photomicrograph. 

Possible use: General uses of diatomite [concrete admixture, filtration, 

insulation].

157. Analysis used in computations.

158. Analysis recomputed to a water-free basis.

159. Clatsop County. Sec. 35, T. 8 N., R. 10 W., southwest of town of Astoria. 

Gladding, McBean and Co. ( Hodge, 1938f, p. 842, 844, 845, 848.) 

Clay; contains thin beds of organic matter; sectioned from top to bottom, 

as follows:

Feet 

Overburden ____-------_ 4

Clay, brownish _--- ___ 3.5 

Clay, buff to gray _______ 4.5 +

Use: Sewer pipeA draintile.
22 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington.contalning uncombined silica and clay each less then 75 percent; uncombined silica and clay each

greater than carbonate (Group B), common- and mixed-rock categories Continued

Chemical analyses Continued

Oregon Continued

160

36B4-5

SiO, __________ 67.62

A1,O, _________ 1 14.38

Fe,0, __ __ __ 5.22

FeO ___________ _____

MgO ______

CaO __________ ______

Na,O ___ _ ______ ______

K,O ___________ ______

H,0- ______

TiO| __________ _____

D f"\

SO, 

r^TmfTL

ZrO, _________ ______

Total _______ [87.22]

Class __________ 36.56.0

161

36B5-81

58.0 

16.5

] '5.3

1.6 

3.3

2.8

4(27.0)

*2.3

6.8

[96.6] 

23.62,3

162

36B6-12

68.4

( *8.79

< 

*15.0 

.8

4.03 

.25 

*<.001

[97.3] 

59.36.0

163

36B6-11

68.1

'8.08

*15.0 

.8

3.58 

.25 

*<.001

[95.8] 

59,34,0

164 165

36B6-7 36B6-8

82.90 81.90 

*9.69 '9.58 

.628 .896

[93.22] [92.38] 

65,31.0 64.31.0

166

36B6-9

83.16 

'9.65 

.653

[93.46] 

65.31,0

167

36B6-6

82.42 

9.87 

.747

.58 

1.68 

2.74

1.72

.153

.58

U 100.49 

64.30.0

168

36B6-5

82.42 

9.17 

.78

.08 

1.68

[94.13] 

65.30.3

169

36B7-2

67.15 

13.30 

1.36

.62 

3.88 

3.03 

1.63

9.67

[100.64] 

42,46,8

170

36B9-12

71.72 

13.77 

.55 

1.34

.52 

Trace 

4.54 

3.75 

 3.22 

.25

.06

.02

"None

99.74 

47,43.0

171

36B9-6

84.32 

5.20 

2.42

.39 

1.53

T3.92

} ».70

B 98.48 

72.25.2

172

36B9-13

80.5 

7.7 

2.72

Present 

2.3 

Present

.38

{ ' "

I 3.96

[98.1] 

64.30.3

Oregon Continued

173

36B9-11

SiO, __ ________ 77.1

A1,O, _________ 16.0

Fe,0, .3

FeO ___________ ______

CaO __________ ______

KmO \

H,0- 

NiO ____________ ______

Total ______ 100.0

Class 48.51.0

174

36B10-5

55.15 

"9.75 

7.76

2.22 

10.48 

( 1.00 

1 .50 

*6.58 

*2.70

"3.64

99.79 

29,53,8

*175

36B10-13

42.01 

.28 

3.39 

.72 

36.36 

.24 

13.28 

1.68

2.62

100.48 

38.23,0

*176

36B10-18

44.39 

None 

.06

15.62 

.16

9.04 

6.45

24.22

99.94 

44.16.0

*177 *178

36B10-15 36B10-16

47.09 45.6 

None None 

2.81 2.2

25.94 27.7 

.50 None

10.09 11.0 

5.40 5.3

8.52 9.0

100.35 100.8 

44,21,0 43,21.0

*179

36B\0-17

42.68 

None 

.22

18.79 

.27

10.30 

6.82

20.44

99.52 

42.18.1

*180

36B10-20

42.18 

None 

1.51

5.28 

.13

8.16 

5.32

37.08

99.66 

40.17,1

*181

36B10-14

46.48 

.16 

3.54

29.79 

None

10.76 

4.62

5.42

100.77 

42,23,0

*182

36B10-10

44.73 

[ 1.18

10.56

6.99 

*8.87

27.57

n 99.90 

43,19.0

183

36B 10-37

80.84 

f '10.47 

{ .949

[92.26] 

61.34,0

184

36B10-36

83.62 

*9.41 

.609

[93.64] 

66,30,0

185

36B10-24

66.95 

14.86 

6.92

2.18 

2.43

"4.08

97.42 

33,58,8

Oregon Continued

*186 *187

36B10-41 36610-47

SiO, ___ 45.9 48.3 

Al»0, __ 2.06 2.6 

Fe,O,* __ 12.9 15.4 

Fe ++ ___ _____ _____

MgQ ____ 24.9 22.3 

CaO ____ .95 2.0

H_O

P,OB ' ___ .03 ______ 

MnO_ _ _

Cr _____ .26 .93

Ni _____ 1.8 3.0

Cu__ _ ______

As______ ___ __ ______

Ba ______

Ignition loss. _____ __ _ _

Total _ C88.8] [94.5] 

Class ___ 28.37.14 26.44.2

187a

36B 10-48

62.2 

.71 

7.2

16.9 

.50

.030

.001 

.29 

2.9 

.004

[90.7] 

53.19.14

*188

36B10-42

46.4 

1.9 

12.94

31.0 

1.3

.07

.003 

.54 

1.46 

.002

[95.6] 

28.37.1

*189

36B 10-43

46.7 

.94

18.9

27.2 

2.7

.04

.047 

.68 

1.38

[98.6] 

24,44,0

*190 *191

36B10-44 36B10-45

46.4 46.4 

2.2 3.4

16.0 18.2

27.6 19.0 

.21 1.1

.06 ______

.17 ______

.58 .81 

1.46 1.5

[94.7] [90.4] 

24.45,1 20.54.8

*192

36B10-46

48.1 

3.5

17.2

19.2 

1.0

.09

.01 

11 1.06 

1.4

7.8

[99.4] 

23.51,5

*193

36B 10-38

44.8 

3.1

21.7

17.8 

.7

.14

.02 

1.0 

1.4

[90.7] 

15,61.6

*194

36B10-49

46.5 

1.5 

13.2

27.7 

.7

.034

.011 

.64 

1.65

7.20

[99.1] 

29.36,7

*195

36B10-31

46.00 

2.00 

12.04

29.40 

.20

.005 

'.22 

.01 

.59 

1.37 

.01 

.02

Nil 

7.5

"[99.4] 

29.35.8

*196

36B10-27

40.00 

2.00 

12.01

29.00 

.04 

4.0

.005 

'.22 

.01 

».80 

"l.40

.02 

Nil

Nil 

7.5

[97.0] 

23.35.7

*197

36B10-32

46.6 

1.2

7.9 

4.0 

26.2 

.7

.06

.016 

.7 

1.50

"7.4

[96.3] 

36,22,10

*198

36B10-34

47.8 

1.2

9.2

2.9 

27.7 

.8

.03

.008 

.5 

1.65

"7.2

[99.0] 

35.25,9

See following page for footnotes.
ANALYSES OF SAMPLES 23

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued

160. Clatsop County. SEl sec. 12, T. 8 N., R. 11 W., Fort Stevens area.

( Carter and others, 1964, p.2,5,^.2,19,20.) Sand, from dunes. Index 

map*. Screen analysis, beneficiation tests. Possible use: Glass.

161. Columbia County. Late Eocene and early Oligocene, Keasey Shale.

[T. 4N., R. 5 W.] near town of Keasey. (Mason. 1951, p. .11, 12.) 

Siltstone, tuffaceous, fossiliferous. Index map. Uses Aggregate.

162, 163. Coos County. [Holocene or Pleistocene.] Si sec. 33, T. 26 S.,

R. 14 W., 13.5 miles north of town of Bandon, Coos Bay area. Analyst, 

under direction of A. C. Rice. Samples 33-1, 33-2. ( Hundhausen, 

1947, p. 2-4, 7-23, figs. 1, 4-6.) General: Alternating layers of 

black, brown, and gray sands; composite samples of black sand from 

drill holes and pits; represent the mine-run sand. Mineralogy. Deposit: 

Chromiferous sand layers range from 14 to 18 ft thick; overburden, 

0-21 ft. Index and geologic maps, geologic sections. Beneficiation 

tern. Use: Source of chromite.

164-166. Coos County. ( Carter and others, 1964. p. 2. 5, 6. 9, 12, 19-21.)

Sand, from dunes. Index maps. Screen analysis, beneficiation tests. 

Possible use: Glass.

164. NWl sec. 13, T. 23 S.. R. 13 W., Tenmile Creek area. Owner, 

Maurice Duval. Sample J- 2.

165. Sees. 10. 15, 16, 21, 22, 30, 33, T. 24 S., R. 13 W., North 

Coos Bay area. Sample K-Comp. Composite sample.

166. Sec. 15, T. 24 S., R. 13 W., Hauser area. Owner,

Maurice Duval. Sample L-Comp. Composite sample. Mineralogy. Geologic map.

167. Coos County. Sec. 27, T. 24 S., R. 13 W., Rogers area. Owner.

Maurice Duval. ( Carter and others, 1964, p. 2, 5, 7. _9. 13-19. 21.) 

Sand, composite sample. Mineralogy. Index maps. Beneficiation 

tests; screen analysis. Possible use: Glass.

168. Coos County. Wi sees. 15, 27, T. 24 S.. R. 13 W., near town of

Rogers. Deposit O-l, sample C. ( Carter and others. 1962, p. 27-29, 

30.) Sand, from top of dune. Mineralogy. Screen analysis. Index 

map. Possible use: Glass, ceramic ware.

169. Crook County. Sec. 21, T. 16 S., R. 17 £.. southeast of town of

Prineville. Analyst, L.L.Hoagland. (Oregon Dept. Geology and Mineral 

Industries, 1950a, p. 27-J29; Mason. 1951, p. 16-^8.) Rhyolite tuff, white, 

dense; uniform texture. Physical properties, mineralogy; bulk density 

1.82. Index of refraction. Index map. Possible use; Dimension stone.

170. Deschutes County. Late Tertiary and Quaternary. Sec. 30, T. 21 S., 

R. 13 £., pumice cone on southwest shore of East Lake. Analyst, 

J. I. Fahey. Record D-114. ( Moore, 1937. p. 155. 167, 168-170. 

173, pis. 1, 16.) Pumice, light-gray, finely vesicular; mineralogy. 

Estimate of cnbic yards. Physical properties, mechanical analysis. 

Index and geologic maps. Possible use: Abrasives, lightweight concrete 

aggregate, carrier, insulating material, acoustic plasters.

171. Deschutes County. [T. 14 S., R. 12 E.],7 miles west of town of

Terrebonne. Atomite Co. ( Eardley-Wilmot, 1928. p. 102, 103, 108. 

pi. 14.) Diatomite inter bedded with other sediments; beds 1-5 ft thick; 

maximum thickness 45 ft, averages 30 ft. Overburden. Photomicrograph. Use: Concrete admixture [implied].

172. Deschutes County. [T. 15 S., R. 13 E.],near town of Redmond. Analyst. 

Mary Fletcher. (Norman and Ralston, 1942, p. 361. 362.) Diatomite. 

Purification tests.

173. Deschutes County. [T. 17 S., R. 12 E.],town of Bend. Analyst,

Anthony Centenero; collector, R. L. Nichols. Sample B-l. ( Pask and 

Davies, 1943, p. 3, 10, 20, 22, 23. 26.) Clay, contains free quartz. 

Mineralogy; thermal analysis curve.

174. Douglas County. Eocene. Wilbur Tuff Lentil. Sec. 33, T. 25 S.,

R. 5 W., a few miles northeast of town of Wilbur. Analyst, H.N. Stokes. 

Record 1737. ( DUler, 1898. p. [2],_[4J; Clarke. 1915. p. 202.) Tuff. 

Index and geologic maps, geologic sections. Former use: Cement. 

175-181. Douglas County. Probably Miocene. T. 30 S., R. 6 W.. near town of 

Riddle. Analyst. K. I. Murata. ( Pecora and others. 1949, p. 13-16, 

JJ, 20.) General: Garnierite, greenish, claylike; lower deposit

Oregon Continued

50-75 ft thick; upper deposit probably 100-200 ft thick. Mineralogy, 

microscopic examination, Ridgway color notation. Index maps. 

X-ray patterns and differential thermal analysis. * Samples contain 

varying amounts of NiO; MgO and CaO not calculated as carbonate.

*175. SWi sec. 16, roadcut.' Clay, light-colored; bulk density 2.57.

*176. SWi sec. 17. Quartz gamierite, veinlike mass, bluish-green;

bulk density 2.69. 

4177. SEi sec. 17. Garnierite quartz veinlets, yellowish-green; bulk

density 2.58.

*178. SEi sec. 17. Garnierite quartz veinlets, yellowish-green.

*179. SEi sec. 17. Quartz garnierite, veinlike mass, bluish-greem 

bulk density 2.67.

*180. SEi sec. 16. Garnierite, dark-green; thin veinlett bulk 

density 2.98.

*181. NEi sec. 20. Garnierite quartz veinlets, yellowish-greent

bulk density 2.55.

*182. Douglas County. Late Tertiary. Sec. 17, T. 30 S., R. 6 W., about 3 

miles northwest of Riddle, Nickel Mountain. Owner, E. F. Adams. 

Analyst. F. W. Clarke. Record 792. ( Clarke. 1888. p. 483, 484-487; 

Pecora and Hobbs. 1942, p. 205-207. 212, 213. 215, 222-226.) 

Genthite, dark-apple-green, compact, amorphous; deposit from a few 

feet to 60-70 ft thick, averages about 20 ft. Mineralogy. Tonnage 

estimated. Index and geologic maps; sketch of a vertical section. 

Possible use: Source of nickel. * Analysis shows 27.6 percent NiO; 

MgO not calculated as carbonate. 

183. 184. Douglas County. ( Carter and others. 1964. p. 2, 5, 12. 19-21.) Sand,

from dunes. Index maps. Screen analysis, beneficiation tests. Possible 

use: Glass.

183. Ni sec. 32. T. 20 S., R. 12 W., Tahkenitch Lake area. 

Sample H-2.

184. Sec. 25, T. 22 S., R. 13 W.. Umpqua River area. Sample IComp. Composite sample.

185. Douglas County. [T. 27 S., R. 6 W.],near town of Roseburg. Analyst, 

W. Michaelis. ( Eckel, 1913. p. 308.) Shale, dark-gray; contains 

calcite seams. Physical properties. Possible use: Cement.

186- 193. Douglas County. [T. 29 or 30 S., R. 6 W.], about 5 miles northwest of 

Riddle, Nickel Mountain. Owner. Hanna Development Co. ( Cremer, 

1954. p. 2. 5, 6.) Nickeliferous iron-bearing rock. Mineralogy. 

Tonnage estimated. Possible use: Source of ferronickel. ^Samples 

contain varying amounts of NU MgO and CaO not calculated as 

carbonate.

186. LotC-1. "187. LotC-2. 

187a. LotC-3.

*188. LotD.

4189. Lot E-3. From 100-ft test shaft.

4190. Lot E-5. From 100-ft test shaft.

4191. Lot F-3. From surface trench.

4192. Lot F-5. ( Hundhausen and others. 1954, p. 1, 11, fig. 1.) 

From surface trench.

4193. Lot F-6. From surface trench.

4-194-4-196. Douglas County. T. 30 S., R. 6 W;, 3-5 miles northwest of Riddle. 

Nickel Mountain deposit. ( Zapffe, 1949, p. 83-85. 86.) Laterite, 

reddish; average thickness about 20 ft. Mineralogy. Possible use: Source 

of nickel. ^Samples contain varying amounts of Ni or NiO; MgO and 

CaO not calculated as carbonate.

4-195. Analyst, H. E. Peterson. ( Ravitz, 1947, p. 4, 5. 6, 8, 9, 37, 

39.) Deposit: Nickeliferous weathered peridotite, little 

overburden. Tonnage estimated. Seneficiation tests. 

Possible use: Source of ferronickel. 

4-197, 4-198. Douglas County. [T. 30 S.. R. 6 W.],near Riddle. Analyst,

H. E. Peterson. ( Ravitz, 1947, p. 4. 5, 6, 8, 9, ^0. 37. 39.) 

Nickeliferous weathered peridotite, little overburden. Mineralogy. 

Tonnage estimated. Beneficiation tests. Possible use: Source of 

ferronickel. ^Samples contain varying amounts of Ni; MgO and CaO 

not calculated as carbonate.

Footnotes of analyses on preceding page:

1 Includes TiO|.

1 Calculated from reported Fe, Fe , P, Mn, or C.

'iron oxide.

4 Not included in total.

'Moisture content averages about 15 percent as mined.

*H|O.

7 At 105«C.

'Sulfate.

'Ounces per ton. 

"CO,.

u 99.82 percent in text. 

11 99.51 percent in text, 

"includes TiO, and P|O5 . 

u Mainly alkalies and alkaline earth.

"Above 110-C. 

"At 110-C.

"time, sulfates, chromium, 

and cobalt could not be detected. 

"Cr.0,. 

"NiO. 

10 At 1.000"C.
24 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate (Group B), common- and mixed-rock categories Continued

SiO, .

Fe,0, 

FeO_.

MgO .

CaO_.

NajO.

K,0_.

H,0_.

TiO, .

MnO .

S .

Ni _ .

Cr

Class.

SiO,

Fe,0, 

FeO_.

MgO_.

CaO_ 

NajO.

K,0_.

H,0_.

TiO,.

MnO 

CO, .

S __ .

Class.

SiO, 

AlfO, 

Fe,0, 

FeO

MgO. 

CaO_. 

Na-0.

H,O+ 

H,0- 

TiO,

MnO 

CO, .

Cl _.

Class.

1

t 

t

4 

1

*199

36B10-35

. __________ 44.2

__________ 1.6

__________ 1 8.2

. __________ *4.5

___________ 28.0

.8

. __________ '.05

. __________ »5.7

. __________ .01

___________ 1.52

. __________ .8

Total ______ [95.4]

___________ 32,24,6

*212

36B12-5

___________ 54.4

__________ 17.2

__________ 2.2

. __ 4.5

___________ 3.1

___________ 6.0

___________ 4.0

._ _________ 2.7

. __________ 4.2

___________ .83

___________ .25

___________ .12

. __________ .37

___________ .07

Total ______ 99.9

. 25.56,1

225

36612-28

._ _______ 78.9

__________ 11.4

__________ .57

 .13

. __ __ 6.5

9O

 1 (

___ / '61 1

f\AA

____________ .011

91

Total 99.7 

. _________ 58,33.1

Calculated from repotted Fe ** 

Reported as Fe++ . 

Ignition loss at 1.000%. 

Includes organic matter. 

99.5 percent in text.

*200

36610-33

47.8 

1.3 

1 8.7 

*2.2 

27.2 

.8

'.02

*7.7 

.01 

2.26 

.6

[98.6] 

36,25.10

*213

36612-3

53.2 

17.4 

2.7 

4.8 

3.2 

5.9 

3.6 

2.3 

4.9 

.93 

.26 

.12 

.37 

.10

'99.8 

19,59.1

226

*201

36612-9

55.7 

17.9 

2.6 

4.3 

3.1 

4.7 

4.1 

1.7 

3.7 

.91 

.14 

.087 

.32 

.28

99.5 

21.59.1

*214

36612-10

55.8 

17.3 

2.1 

3.6 

2.3 

5.4 

3.8 

3.5 

3.8 

.80 

.28 

.10 

.71 

.16

99.6 

23,56.2

227

36612-2

68.22 

12.41 

1.00 

1.36 

.16 

.95 

3.38 

3.97 

' '4.82 

L *3.42 

.34 

.11

100.16 

45,45,0

*,orP.

74.22 

13.50 

1.09 

1.49 

.19 

1.03 

3.69 

4.33

.35 

.11

100.00

*202

36612-12

56.0 

16.9 

2.4 

4.6 

3.8 

5.8 

3.1 

2.2 

3.3 

1.0 

.15 

.085 

.28 

.16

99.8 

23,55,1

*215

366 12-7

55.2 

17.6 

1.8 

3.9 

2.3 

5.9 

4.0 

3.8 

3.7 

.80 

.27 

.10 

.33 

.14

99.8 

22,56.1

228

36B 12-18

66.64 

13.93 

.95 

1.46 

1.14 

2.61 

5.66 

2.64 

'3.81 

8 1.19 

.18 

.12

100.33 

41,46.0

Chemical analyses Continued

Oregon Continued

*203 *204 *205

36612-6 36612-8 36612-17

55.0 55.3 59.2 

17.3 17.4 16.9 

2.1 2.2 1.6 

5.4 4.9 4.2 

3.7 3.9 2.1 

5.4 6.1 5.2 

4.2 3.4 3.9 

1.8 1.5 1.8 

3.2 3.3 3.1 

.86 .80 .82 

.13 .13 .16 

.096 .095 .083 

.78 .49 .52 

.17 .12 .11

100.1 99.6 99.7 

22,56.2 22.56.1 28,53.1

Oregon Continued

216 217 218

36612-19 36612-21 36612-26

68.3 70.9 76.0 

13.6 13.1 13.6 

1.3 1.1 1.0 

1.3 1.6 .13 

1.3 1.0 .02 

2.9 1.6 .62 

1.2 5.4 7.0 

3.0 1.7 .14 

6.3 2.1 .72 

.34 .42 .29 

.075 .14 .046 

.039 .032 .018 

.13 4 .87 .15 

.04 .22 .005

99.8 100.2 99.7 

43.47.0 47.41.2 51.41,0

Oregon Continued

229 230 231

*206

36612-13

56.2 

17.1 

1.8 

5.3 

3.5 

4.8 

4.3 

1.5 

3.5 

.87 

.16 

.090 

.67 

.14

99.9 

24,55.1

219

36612-27

76.2 

12.9 

1.4 

.18 

.53 

.64 

5.9 

.60 

1.0 

.30 

.058 

.021 

.13 

.005

99.9 

52,40,0

232

36613-1 36613-2

81.68 90.31 82.78 

5.93 6.56 4.61 

1.20 1.32 1.77

.30 .33 .22 

.54 .60 .44 

.24 .27 .62 

.10 .11 .24 

5.10 _____ 4.78

.31 .34 .26

.09 .10 .06 

".05 *.06 *.15 

None None None

100.16 100.00 100.67 

70.29,0 _____ 73.26.0

'Above 110°C. 

7 Above 100«C.

'At 105«C.

90.89 

5.05 

1.93

.23

.47 

.67 

.26

.28

.06 

None

100.00

*207

36B12-11

55.9 

17.7 

2.3 

4.4 

3.3 

6.0 

3.7 

1.5 

3.3 

.83 

.17 

.080 

.40 

.13

99.7 

22,57,1

220

36612-20

69.0 

13.1 

1.1 

.90 

.76 

3.2 

1.3 

2.8 

6.3 

.40 

.072 

.028 

.38 

.014

99.4 

45,45,1

233

36B15-1

65.98 

17.20 

1.49 

2.68 

2.46 

.11 

2.18 

3.96 

T2.56

1.40

100.14 

34,54.0

*208

36612-16

56.9 

17.7 

2.4 

3.7 

2.8 

5.7 

3.6 

2.0 

3.1 

.65 

.15 

.083 

.51 

.13

99.4 

23,57.1

221

36612-22

73.0 

14.2 

.75 

.43 

.39 

.85 

7.1 

1.3 

1.0 

.38 

.13 

.010 

.23 

.005

99.8 

47,42,0

234

36615-16

68.02 

19.45

3.90

.40 

1.91

".13

*6.26

100.07 

29,68,1

*209

36612-15

56.6 

16.6 

2.1 

4.6 

3.6 

5.3 

3.9 

2.2 

3.2 

.82 

.14 

.089 

.62 

.14

99.9 

25.54,1

222

36612-23

74.0 

14.0 

1.0 

.70 

.44 

.52 

7.2 

.14 

1.0 

.36 

.056 

.033 

.16 

.006

99.6 

48,42.0

235

36615-18

71.48 

19.77 

2.27

.18

.70

u.30

«5.64

100.34 

34,65.0

*210

36612-14

56.5 

17.4 

2.4 

4.1 

2.9 

5.5 

3.2 

3.6 

2.8 

.88 

.24 

.12 

.26 

.12

100.0 

23.56,1

223

36612-24

74.4 

13.5 

1.5 

.26 

.11 

.74 

7.7 

.36 

.75 

.32 

.087 

.018 

.10 

.005

99.8 

49.41.0

236

36615-28

81.10 

12.89 

1.64 

.15 

.07 

.10 

.28 

.30 

T 4.16

100.81 

56.43.0

*211

36612-4

54.2 

17.1 

2.2 

4.5 

3.2 

5.9 

4.0 

2.8 

4.4 

.81 

.25 

.11 

.37 

.07

99.9 

21,56,1

224

36612-25

75.2 

13.7 

.44 

.17 

.05 

.82 

7.8 

.19 

.47 

.35 

.054 

.011 

.30 

.005

99.6 

51.39,1

237

36615-7

67.78 

19.14 

.56 

2.68 

.52 

1.57 

1.65 

1.46 

T 3.12 

*.38

.70

99.56 

33,58,2

*Below 100%. 

*TiO. 

 ignition loss.

"so,.
ANALYSES OF SAMPLES 25

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued Oregon Continued

199, 200. Douglas County. [T. 30 S.. R. 6 W.],near town of Riddle. Analyst,

H. E. Peterson. (Ravitz, 1947, p. 4, 6, 8, 9, ^0, 37, 39.) Nickeliferous weathered peridotite, little overburden. Mineralogy. Tonnage 

estimated. Beneficiation tests. Possible use: Source of ferronickel.

*199. "Analysis shows 4.5 percent Fe++ , 1.5 percent Ni, 0.8 percent 

Cr; suggests 25.9 percent more MgO and CaO than required 

for carbonate.

1*200. "Analysis shows 2.3 percent Ni, 2.2 percent Fe ; suggests 23.2 

percent more MgO and CaO than required for carbonate.

201-209. Grant County. Early Jurassic, Hyde Formation. [T. 17 S., R. 28 E.],near 

town of Izee, South Fork of John Day River. Analyst, E. L. P. Mercy. 

( Dickinson, 1962b, p. 482-491, 493.) Tuff, medium-grained, massive. 

Mineralogy. Outcrop sample. Index and geologic maps, columnar 

section. Photomicrograph.

"201. Field No. FC-500. "Analysis shows 5.8 percent alkalies, 4.3

percent FeO, 0.9 percent TiOi; suggests 7.4 percent more MgO 

and CaO than required for carbonate.

*202. Field No. CC-200. "Analysis shows 5.3 percent alkalies, 4.6

percent FeO, 1.0 percent TiOi; suggests 9.3 percent more

MgO and CaO than required for carbonate. 

"203. Field No. SF-400. "Analysis shows 6.0 percent alkalies, 5.4

percent FeO, 0.9 percent TiOi; suggests 8.2 percent more

MgO and CaO than required for carbonate. 

"204. Field No. SF-500. "Analysis shows 4.9 percent FeO, 4.9 percent

alkalies, 0.8 percent TiO»; suggests 9.5 percent more MgO

and CaO than required for carbonate. 

"205. Field No. 3-49-18. "Analysis shows 5.7 percent alkalies, 4.2

percent FeO, 0.8 percent TiOi; suggests 6.7 percent more MgO

and CaO than required for carbonate. 

"206. Field No. 3-49-31. "Analysis shows 5.8 percent alkalies, 5.3

percent FeO, 0.9 percent TiOi; suggests 7.6 percent more

MgO and CaO than required for carbonate. 

"207. Field No. 3-49-29. "Analysis shows 5.2 percent alkalies, 4.4

percent FeO, 0.8 percent TiOj; suggests 8.8 percent more MgO

and CaO than required for carbonate. 

"208. Field No. 3-49-28. "Analysis shows 5.6 percent alkalies. 3.7

percent FeO; suggests 7.9 percent more MgO and CaO than

required for carbonate. 

"209. Field No. 3-49-27. "Analysi* shows 6.1 percent alkalies, 4.6

percent FeO, 0.8 percent TiOi; suggests 8.2 percent more

MgO and CaO than required for carbonate.

210-215. Grant County. Middle Jurassic, Snowshoe Formation. [T. 17 S., R. 28 E.], 

near Izee, South Fork of Beaver Creek. Analyst, E. L. P. Mercy. 

( Dickinson, 19625, p. 482-492.) Tuff, medinm-grained, massive. 

Mineralogy. Index and geologic maps, columnar section. Photomicrograph.

"210. Field No. 4-36-19. Bulk density 2.72. "Analysis shows 6.8

percent alkalies, 4.1 percent FeO, 0.9 percent TiOi; suggests 

8.1 percent more MgO and CaO than required for carbonate.

"211. Field No. 8-20-6. Bulk density 2.69. "Analysis shows 6.8

percent alkalies, 4.5 percent FeO, 0.8 percent TiOi: suggests 

8.7 percent more MgO and CaO than required for carbonate.

"212. Field No. 8-19-6. Bulk density 2.70. "Analysis shows 6.7

percent alkalies, 4.5 percent FeO, 0.8 percent TiOi; suggests 

8.7 percent more MgO and CaO than required for carbonate.

"213. Field No. B-19-7. Bulk density 2.66. "Analysis shows 5.9

percent alkalies, 4.8 percent FeO, 0.9 percent TiOi; suggests 

8.7 percent more MgO and CaO man required for carbonate.

"214. Field No. 4-45-4. Bulk density 2.66. "Analysis shows 7.3

percent alkalies, 3.6 percent FeO, 0.8 percent TiOi; suggests 

6.9 percent more MgO and CaO than required for carbonate.

"215. Field No. B-19-1. Bulk denisty 2.70. "Analysis shows 7.8

percent alkalies, 3.9 percent FeO, 0.8 percent TiOi; suggests 

7.8 percent more MgO and CaO than required for carbonate.

216-225. Grant County. Jurassic, Trowbridge Formation, ( Buck Creek FeUite Tuff). 

[T. 17 S., R. 28 E.],near Izee. Analyst, E. L. P. Mercy. ( Dickinson, 

1962a, p. 250, 251. 253-256. 259. 261.) Mineralogy. Index and 

geologic map. Photomicrograph.'

216-219. Lewis Creek. Altered tuff, dark-gray-green, finely crystalline, 

splintery or subconchoidal fracture.

216. Sample 385. 218. Sample 382.

217. Sample 384. 219. Sample 381.

220. Pole Canyon. Sample 2481. Altered tuff, dull-green, finely 

crystalline, splintery or subconchoidal fracture.

221. Pole Canyon. Sample 2489. Altered tuff, gray, brittle.

222. South Fork of John Day River. Sample 1452. Altered tuff, 

pale-gray, brittle.

223. Rosebud Creek. Sample 1462. Altered tuff, tan, brittle. 

Profile columnar section.

224. Buck Creek. Sample 1456. Altered tuff, pale-buff, brittle.

225. Buck Creek. Sample 6486. Altered tuff, cream-colored, 

brittle.

226,227. Grant County. Late Miocene, Mascall Formation. [Sec. 13, T. 13 S., 

R. 28 E.],John Day basin. Belshaws Ranch. Analyst, F. C. Calkins. 

( Calkins, 1902-1904, p. 167.) Rhyolitic tuff, gray, friable. Mineralogy.

226. Analysis used in computations.

227. Analysis recomputed to a water-free basis.

228. Grant County. Holocene. [T. 13 S., R. 28 E.],John Day basin. Analyst, 

F. C. Calkins. ( Calkins. 1902-1904, p. 168, 169.) Volcanic ash, 

cream-white, friable, very fine grained. Mineralogy.

229-232. Hamey County. Miocene and Pliocene!?), Payette Formation. SWiSEj 

sec. 14, T. 20 S.. R. 36 E., 7 miles northeast of town of Drewsey. 

Diatomite Products Co. Analyst, E. T. Erickson. ( Moore, 1934a, p.8,

9. _11. 128 Moore, 1937. p. 95, 97-99, 103, 104-106. Ill, 114. pis. 1,

10. 11; Wells, 1937. p. 45.) Diatomitei beds as much u 31.5 ft thick, 

maximum thickness about 500 ft; little overburden. Tonnage estimated. 

Index and geologic maps, detailed measured section. Microscopic 

examination, photomicrograph. Ridgway color notation. Possible use: 

Concrete admixture, sawed bricks and other forms, filtration, insulation. 

229, 230. Lab. No. Z4. Diatomite; pale buff when dry; laminated; 

weathers to a papery shale; from bed 22 ft thick.

229. Analysis used in computations.

230. Analysis recomputed to a water-free basis. 

231, 232. Lab. No. Z10. Diatomite; pale buff when dry; pale cream 

buff when wet; from bed 18 ft thick.

231. Analysis used in computations.

232. Analysis recomputed to a water-free basis.

233. Jackson County. Probably Paleozoic. Sec. 36, T. 37 S., R. 3 W., about 

1.5 miles west of town of Jacksonville. Opp mine. Analyst, S.W. French. 

Sample 164. ( Winchell, 1914, p. 14, 15, 39, 42, 68, 141, 149, 151, 

fig. 1.) Argillite. Mineralogy. Index maps. Use: Road metal.

234, 235. Jackson County. Probably post-middle Miocene. ( Wilson and Treasher, 

1938, p. 1, 19, 24, 80, 81, 84, 92.) Index map. Firing tests.

234. SWi sec. 20, T. 33 S.. R. 1W., roadcut. Gaines property. Field 

No. 38. Clay. Possible use: Face brick.

235. SEi sec. 25, NEi sec. 36, T. 33 S., R. 1 W., near town of

Rogue-Elk. Rogers property. Field No. 39. Clay. Possible use: 

Probably none.

236. Jackson County. [T. 39 S., R. 1 E.],southeast of town of Ashland, Walker 

Creek. Analyst, S. W. French. Sample 44. (Winchell, 1914, p. 14, 

15, 39, 40, 42, 55, fig. 1.) Laterite; claylike mass interbedded with 

lava flows. Mineralogy. Index maps. Possible use: Pottery.

237. Jackson County. [T. 40 S., Rs. 1 W.. 1, 2, E.],southeast of Ashland,

railroad cut south of Siskiyou tunnel. Analyst, S.W. French. Sample 9. 

( Winchell, 1914, p. 14, 15, 17, 39, 40. 42, 59, fig. 1.) Argillite, lightgray, well-bedded, extremely fine grained. Mineralogy. Index maps.
26 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho. Oregon, and Washington,containing uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate

SiO, ____________

Al,0, ___________

Fe,0, ___________

FeO _____________

MgO ____________

CaO ____________

Na,0 ________ __

K,0 _____________

H.OTiO, ____________

P.O.

MnO ____________

CO, ____________

Cl ______________

Total _______

Class ____________

SiO, ____________

Al,0, ___________

Fe,0, ___________

FeO _____________

MgO ____________

CaO _____________

Na,0 ____________

K.O

HO- ___________

TiO, __ _ ___

p.n.

MnO ____________

Total _______

Class ____________

SiO, ____________

Al,0, ___________

MgQ _____________

CaO ____ , _______

Na^) ___ __ ___ __

TiO, ____________

CO, ____________

SO, 

Cl ______________

Total _______

Class __ __________

238

36B16-1

71.58 

11.09 

1.57

.88

1.28

3.98

4.10

.38

"*2.14

[97.00] 

50.36.0

251

36B20-17

80.20 

14.88

| 1.70

.52

.007 

*3.50

100.81 

52,48,0

264

36B21-2

81.84 

4 10.14 

.858

[92.84] 

63.33,0

239

36B16-2

83.5 

8.3 

2.9

T3.6

[98.3] 

66,33,0

252

36B20-23

71.0 

14.8 

( 2.0 

1 .49 

.40 

1.8 

3.8 

3.6

.38 

.04 

.06 

.06

100.0 

43,47,0

265

240 241

36B18-1

65.52 

14.44 

3.34

.87 

1.56 

.91 

.42 

7.40 

1 5.20 

.86

.04 

.03 

.10

100.69 

36,60,0

253

36B20-18

79.54 

15.63 

.74

.31 

.32

 .13

*3.23

99.90 

51.48.0

266

74.41 

16.39 

3.78

.97 

1.77 

1.02 

.48

.98

.05 

.03 

.12

100.00

254

36B20-19

71.07 

18.68

1 2.82

.01 

.17

*6.97

99.72 

35,65.0

267

36B23-4 36B2

78.12 

6.29 

1.88 

.41 

.96 

.34 

.20 

6.80

.33 

.13 

.04 

None

100.22 

65,33,0

88.08 

7.09 

2.12 

.46 

1.08 

.38 

.22

.36 

.15 

.04 

None

99.98

77.96 

3.93 

2.92 

.67 

1.26 

.98 

.16 

8.16 

*6.22 

.27 

.15 

.10 

.02

100.80 

68,29,0

(Group B), common- and mixed-rock categories Continued

Chemical analyses Continued

Oregon Continued

242 243 244 245

36B18-2 36B18-3

75.56 83.39 75.30 

8.64 9.54 8.42 

2.66 2.94 2.89

.37 .41 .63 

1.20 1.33 1.90 

1.08 1.19 .71 

.26 .29 .32 

5.40 _____ 5.67

*3.76 _____ 1 3.80

.64 .71 .45

.11 .12 .10 

.06 .07 .03 

None None .34

99.74 99.99 100.56 

57,39.0 _____ 57.39.0

Oregon Continued

255 256 257

36B20-20 36B20-27 36B20-21

78.17 77.10 75.69 

15.53 4 11.38 14.89

1.37 { 2 ' 74 } 1.52

.13 _____ .05

.08 _____ .18

*4.57 _____ *5.43

99.85 [91.22] 97.76 

49.50,0 54,41,0 48.50.0

Oregon Continued

268 269 270

3-5 36B23-7

88.20 74.78 83.39 

4.45 6.69 7.46 

3.30 1.98 2.21 

.76 .65 .72 

1.43 .88 .98 

1.08 1.44 1.61 

.18 .32 .35 

_____ 6.56 _____

__ . __ 1 6.48 ______

.30 .27 .30 

.17 .13 .14 

.11 .88 .98 

.02 1.66 1.86

100.00 102.72 100.00 

_____ 61.36.0 ______

82.68 

9.24 

3.17

.69 

2.08 

.78 

.35

.49

.12 

.03 

.37

100.00

258

36B20-26

81.72 

4 10.53 

( .813

[93.06] 

62,34,0

271

36B23-12

68.70 

13.50 

1.00 

.41 

.80 

5.65 

4.55

*5.49

[100.10] 

44,44,3

246

36B18-4

68.56 

14.22 

1.42 

1.49 

.83 

2.35 

5.18 

2.47

\ 3.32

.58 

.10 

.03 

None

100.55 

42,46,0

259

36B20-25

80.04 

4 11.53 

.877

[92.45] 

59,37,0

272

36B24-78

62.42 

18.28 

T 3.47 

.65 

3.91

 

* 11.36

100.08 

26,66,8

247

36B18-5

69.50 

15.18 

1.24 

1.42 

.83 

2.08 

4.78 

2.18

2.51

.41 

.21 

.03 

None

100.37 

41,47.0

260

36B21-4

60.8 

13.9 

4.0 

2.0 

2.2 

1.0 

2.2 

1.7

\ 5.0 

.74 

.25 

.04 

.58

[99.1] 

32,57,1

273

36B24-74

63.98 

20.24 

T 3.78 

.23 

2.28

 

*9.57

100.08 

24.72.5

248

36B18-7

66.38 

15.74 

.64 

2.12 

.74 

2.68 

4.11 

2.37 

( 4.00 

\ .50 

.48 

.05 

Nil

99.81 

38.49,0

261

36B21-5

55.2 

15.3 

4.3 

2.0 

2.4 

3.5 

3.2 

.85 

4.8 

6.4 

.84 

.33 

.12 

1.0

[100.2] 

23.63,2

274

36824-75

72.73 

15.96 

T 3.86 

.15 

.48

*5.35

98.53 

40,57.1

249

36B:

76.00 

5.96 

2.03

.23 

.38 

.33 

.15 

9.18 

J 5.20 

.13

.20 

.17 

.06

'100.02 

63.35.0

262

36821-3

50.1 

13.3 

4.5 

9.3 

3.8 

8.1 

3.2 

.75 

1.1 

1.6 

3.0 

.65 

.21 

.06

[99.7] 

22,49.0

275

36B28-4

59.40 

| 16.34

'.87 

'11.23

'1.41

'9.76

[99.01] 

32,45,22

250

18-6

88.76 

6.96 

2.37

.27 

.44 

.39 

.17

.14

.23 

.20 

.07

100.00

263

36B21-1

72.45 

12.60 

'10.80

Trace 

4.10

99.95 

50,48,0

276

36829-2

78.20 

f 4 10.86 

\ 1.88

[90.94] 

57,37.0

*At 105»C. 

'ignition loss. 

'Contains organic matter. 

4Includes TiO,. 

Oxide of iron.

*TiO.

'includes FeO.

'Calculated from reported MgCO, and (or) CaCO,.

'ignition loss, used as H,O in computations.
ANALYSES OF SAMPLES 27

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued

238. Jefferson County. Sec. 9. T. 9 S., R. 15 E.. 3 miles south of Wiilowdale 

post office. Analyst, L. L. Hoagland. ( Mason, 1951, p. JK5-18.) 

Rbyolite tuff, reddish-brown, fine-grained, some banding. Little overburden. Bulk density 1.66-1.89. Index map. Physical properties. Use: 

Building stone.

239. Jefferson County. NWi sec. 25, T. 11 S., R. 11 E.. Warm Springs Indian 

Reservation. Analysts, K. A. Johnson, Anthony Centenero. ( Skinner and 

others. 1944. p. 1, 2. 4, 32. J35. 36. 66. 74.) Diatomite; about 45 ft 

thick; overburden 3-15 ft thick. Channel sample of uppJT 5 ft. Index 

maps. Physical properties, firing tests. Photomicrograph. Possible 

general use: Concrete admixture, filtration, heat insulation.

240-245. Klamath County. Analyst, E. T. Erickson. ( Moore, 1934a, p. 3, 5, _Uj 

Moore, 1937. p. 37. 41, 42, 43, 44. 47, 48. 108, 109, 114, pis. 1. 

4-6| Wells, 1937. p. 45.) Index and geologic maps. Microscopic 

examination, photomicrograph. Ridgway color notation. Possible use: 

Clay-bonded bricks. Samples 240, 242, 244 used in computations; 

samples 241, 243, 245 recomputed to a water-free basis. 

240, 241. Pliocene. SWi sec. 11, T. 36 S., R. 10 E.. north of town

of Sprague River, roadcut. Lab. No. 227. Diatomite, buff,

massive; interbedded with other sediments; beds 5-15 ft

thick, deposit 105 ft thick. 

242, 243. PlioceneC?). SW corner, NWi sec. 13, T. 39 S., R. 8 E.,

4.5 miles southwest of town of Klamath Falls. Lab. No.

187. Diatomite, pale-buff, massive, thick-bedded with

a few very thin ash partings. Sample from 42 ft bed.

Detailed measured section. Possible use: Insulation. 

244. 245. Pliocene. NWiSEi sec. 13. T. 40 S., R. 11 E.. near town

of Malin, roadcut. Lab. No. 232. Diatomite. pale-buff;

interbedded with other sediments. Deposit abont 50 ft thick.

Possible use: Concrete admixture, insulation.

246,247. Klamath County. Late Tertiary and Quaternary. Analyst, J. J. Fancy. 

Record D-114. Mineralogy. Index and geologic maps. Physical 

properties, mechanical analysis.

246. Sec. 8, T. 27 S., R. 8 E., near town of Chemult. ( Moore, 1934b. 

p. 359, 360, 362, 363. 366; Moore, 1937, p. 155, 158. 159. 

160, pis. 1.16; Oregon Dept. Geology and Mineral Industries, 

1950b, p. 4_1.42.) Pumice,white, fine to coarsely granular;weathers 

light yellow; averages 6 ft thick. Volume estimated. Possible use; 

Abrasives, concrete aggregate, insulation, acoustic plasters.

247. Sec. 17, T. 28 S., R. 8 E., south of Chemult. ( Moore. 1934b, 

p. 359-362, 365; Moore, 1937. p. 155, 157. 160, 161, pis. 1, 

16.) Pumice, light-gray; weathers pink and yellow. 

248. Klamath County. Holocene. [T. 32 S.. R. 6 E.],Crater Lake National

Park, Sun Creek Canyon. Analyst, W. H. Herdsman. Sample 29.

( Williams, 1942. p. 13. 18. 70, 114, 145, 146, 151. 152, pis. 2, 3.)

Dacite lump pumice, pale-gray, buff.and white. General mineralogy.

Index and geologic maps, general geologic sections. Norms and Niggli

values. 

249, 250. Klamath County. Holocene. NWiNEi sec. 31, T. 35 S., R. 14 E.. North

Fork of Sprague River. Analyst, E. T. Erickson. Sample 222. ( Moore.

1934i. p. 3, 5, U; Moore, 1937, p. 45, 47, 109, 114. pis. 1, 5, 6;

Wells, 1937, p. 45.) Diatomite, buff; interbedded with other sediments.

Index and geologic maps. Microscopic examination, photomicrograph.

Ridgway color notation. Possible use: None, deposit small.

249. Analysis used in computations.

250. Analysis recomputed to a water-free basis.

251. Lane County. Oligocene. NEiNWi sec. 2. T. 18 S., R. 4 W., about 2 

miles southwest of town of Eugene. West property. USED sample 270 A. 

( Hodge. 1938f, p. 817. 869, 887.) Kaolin, white, sandy; 10 ft thick; 

overburden 5 ft thick. Index map. Firing tests. Possible use: Ceramic 

products.

252. Lane County. Oligoceiwt ?), Little Butte Volcanic Series. NWiNEi sec. 34, 

T. 21 S., R. 4 E., 1.5 miles west of McCredie Springs, roadcut. Analysts, 

P. L. D. Elmore, S. D. Sons, H. H. Thomas, M. D. Mack. Sample 

DLP-56-128A. ( Peck and others, 1964, p. 2. 8. 13, 45, 46, pi. 1.) 

Rhyodacite tuff, pinkish-gray, massive. Bulk density 2.58. Index of 

refraction. Mineralogy, thin-section description. Index and geologic 

maps, geologic sections, generalized columnar section. Norms and modes.

253. Lane County. Probably post-middle Miocene. NWi sec. 36, T. 17 S.. 

R. 4 W., west of Eugene. Rice property. Field No. 31 C. ( Wilson and 

Treasher, 1938, p. 1, 19, 65. 84. 91.) Clay, sandy. Firing tests. 

Former use: Brick. Use: Molding sand.

Oregon Continued

254.

255.

256.

257.

260. 261.

262.

Lane County. SWiNWi sec. 31, T. 15 S., R. 5 W., abont 7.7 miles

west of Junction City. Jennings property. (Hodge. 1938f. p. 817. 885,

887.) Clay, gray; upper 2 ft, fine clay: lower pan sandy. Overburden

7 ft. Index map. 

Lane County. SWiNEi sec. 34, T. 17 S., R. 4 W.. 2.8 miles west of

Eugene. Eugene Clay Products pit. ( Hodge, 1938f, p. 817, 870, 871.

887.) Kaolin, plastic, sandy, micaceous; possibly 90 ft thick, overburden

2-5 ft thick. Index map. Firing tests. Former use: Structural brick.

Possible use: Ceramics, if washed. 

Lane County. Ei sec. 27, T. 17 S., R. 12 W., Heceta Beach area.

Sample E-l. ( Carter and others, 1964, p. 2, 5, tt, 19, 20.) Sand.

from dunes. Index maps. Screen analysis, beneflclation tests. Possible

use: Glass. 

Lane County. SWiSEi sec. 31, T. 18 8., R. 1 E., near town of Lowell.

( Hodge, 1938e, p. 817, 886, 887.) Andesitic tuff, white to rust-colored.

Index map. Firing tests. Possible use: Grog. 

258, 259. Lane County. Samples F-l, G-2. ( Carter and others, 1964, p. 2, 5, ^2.

19, 20.) Sand, from dunes. Index maps. Screen analysis, beneftciation

tests. Possible use: Glass.

258. Center sec. 34, T. 18 S., R. 12 W., near town of Florence.

259. SWi sec. 33. T. 19 S., R. 12 W.. Siltcoos Lake area. 

Lincoln County. Miocene. T. 11 S., R. 11 W., Yaquina Bay, offshore. 

Analysts. P. L. D. Elmore, S. D. Botts, Gillison Chloe. Lowell Artis, 

H. Smith. ( Snavely and others. 1964, p. 134, 135, 140. 142, 143.) 

Index and geologic map, columnar section.

260. Nye Mudstone. SWi sec. 9, near McLean Point. [Mudstone.] 

Core sample.

261. Astoria Formation. SEi sec. 18, near mouth of Yaquina Bay. Tuff.

Lincoln County. Miocene, unnamed unit overlying Astoria Formation. 

[T. 8 S.. R. 11 W.], 14 miles north of town of Newport, Government 

Point. Analyst, D. F. Powers. ( Snavely and others, 1964, p. 134, 135, 

140. 142, 143.) Volcanic debris.

Lincoln County. [T. 10 S., R. 9 W.],town of Chitwood. Victor Sandstone 

Co. quarries. Analyst, J. W. Reilly. ( Day, 1898, p. 277.) Sandstone. 

Physical properties.

Lincoln County. SWi sec. 18, T. 13 S.. R. 11 W.. Alsea Bay. Sample 

D-l. ( Carter and others, 1964, p. 2, 5, J2, 19. 20.) Sand, from dunes. 

Index maps. Screen analysis, beneficiation tests. Possible nse: Glass.

Malheur County. Miocene and PlioceneC ?), Payette Formation. Harper 

district. Pacific Coast Diatom Corp. Analyst, E. T. Erickson. ( Moore, 

1934a, p.6,7,10,jLl,12; Moore, 1937, p.68,78.81-83,86-88,89,91.92. 

94,110,Jll4,pls. 1,7,8,10; Wells, 1937, p. 45.) Diatomite, compact; 

low apparent density. Volume estimated. Index and geologic maps, correlated columnar sections, detailed measured section. Microscopic examination, photomicrograph. Ridgway color notation. Use: Cement additive. 

filtration, insulation. Samples 265, 267. 269 used in computations; 

samples 266, 268, 270 recomputed to a water-free basis. 

265, 266. NWiNEi sec. 10, T. 19 S.. R. 41 E.. Lab. No. X8. Diatomite, buff; 5.5 ft thick.

267, 268. NEi sec. 23, SEi sec. 14; T. 19 S.. R. 41 E., Lab. No. S7. 

Diatomite; white when dry; buff when wet; bed 3 ft 10 in. 

thick.

269, 270. SEi sec. 34, T. 19 S.. R. 42 E., in bluff on Malheur River. 

Lab. No. U4. Diatomite; white when dry; cinnamon buff 

when wet; in beds 4-10 ft thick. Sample 56 ft above base 

of 59.5 ft unit.

Malheur County. EiSEi sec. 33, T. 21 S., R. 46 E., town of Adrian. 

Analyst, L. L. Hoagland. Lab. No. P-8519. (Jacobs, 1950, p. 2, 5-8. 

15.) Volcanic ash. Firing tests. Possible use: Ceramic glaze.

Marion County. ( Hodge, 1938f, p. 817, 864-867.) Index map.

272. [T. 6 S., R. 1 E.],l mile east of town of Scott Mills, roadcut. 

Clay, white, sandy, slightly kaolinized. Firing tests.

273. [T. 6 S., R. 1 W.],2.65 miles from town of Silverton. Clay, 

white, plastic; 2 ft exposed, overburden 1-2 ft.

274. [T. 7 S.. R. 1 E.],6.7 miles from Silverton. on Silver Creek Falls 

Road. Weathered andesitlc tuff, whitish, clayey; upper part 

vesicular grading into firmer rock below; deposit at least 6 ft 

thick, overburden 2-2.5 ft. 

Sherman County. T. 2 N., R. 16 E., south of town of Rufus. Analyst,

R.S. Edwards. ( Eckel, 1913, p.309.) Volcanic ash. Possible use: Cement. 

Tillamook County. SEi sec. 7, T. 3S., R. 10W.. Sand Lake area. Sample 

B-l. ( Carter and others, 1964, p. 2. 5, ^2, 19, 20.) Sand, from dunes. 

Index maps. Screen analysis, beneficiation tests. Possible use: Glass.

264.

265-270.

271.

272-274.

275.

276.
28 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing uncombined silica and clay each lea than 75 percent; uncombined silica and clay

each greater than carbonate (Group B), common- and mixed-rock categories Continued

Chemical analyses Continued

Oregon Continued

SiO, _______

A1.O, ______

Fe.0, ______

FeO ______

MgO _____ _

CaO ___

Na,O _ m ___

K.O 

HO* ___

TiO, 

MnO_ _______

CO, _______

Cl _________

so -i

Total

Class _______

277

36B29-1

_____ 81.34

"9.91

_____ 1.19

TOO AA.1

_____ 82.33.0

278

36B35-11

66.35 

12.12 

3.12 

.62 

.85 

1.37 

1.70 

3.67 

5.56 

3.92 

.45 

.08 

.04 

Trace

99.85 

41,50,0

279

36B35-10

66.49 

11.78 

2.67 

.26 

.61 

1.77 

2.11 

2.80 

5.81 

4.62 

.54 

.10 

.02 

Trace

99.58 

43,49.1

280

36B35-3

55.36 

10.45 

8.71 

Trace 

1.96 

3.23 

1.69 

1.64 

5.64 

9.03 

1.18 

.38 

.13 

.30

99.70 

27,62.1

281 282

36B35-9 36B35-8

60.92 71.67 

12.52 11.58 

3.92 1.46 

1.55 .28 

1.24 .44 

3.37 2.01 

2.30 1.67 

2.64 3.38 

5.99 3.51 

4.51 3.39 

.82 .57 

.20 .01 

.07 .05 

.11 Nil

_____ .19

100.16 100.21 

34,53,0 50.42.0

283 284

36B35-1 36B36-4

64.36 63.46 

16.43 22.86 

2.23 .56

1.27 1.47 

2.60 1.39 

7.10 ____ ._

2.26 _____

_____ '.13

*3.72 *8.72

[99.97] 98.59 

33,54,0 22,70,6

285

36B36-2

69.40 

20.27 

.46

.59 

1.58

......

 .14

 5.10

97.54 

33,62.0

286

36B36-3

65.6 

18.5 

.4

1.0 

1.4 

3.1 

3.0

«5.0

[98.0] 

32.57,1

287

36B36-5

63.86 

14.68 

3.68

1.06 

2.53 

1.70 

.97 

*4.09

*5.59 

.60 

.20

Trace 

.82 

.30

100.08 

34.58.2

288

36B36-11

70.40 

19.41 

.19

.58 

1.00

4 .32 

1.02

 4.43

97.35 

36,59,0

Washington

289

46B2-6

72.56 

12.04 

1.38

2.10 

3.16

*6.15

97.39 

50,40,6

Washington Continued

SiO*

A1.O, _____

BA-O.

FeO ________

MgQ ________

CaO

Na,O _______

K,O ________ 

H.O+ 

TiO, _______

MnO _______

S __________

Cr,O, ______

SrO

ZrO,

BaO

Total __

290

46B4-21

____ 73.33

_____ 15.27

____ 3.25

__ __ .11

____ .15

____ .09

____ .09

____ 5.30

____ .35

____ .70

____ .07

____ [100.09]

____ 43,55.0

291

46B4-70

49.62 

16.81 

3.39

1.51 

12.66

1 T 6.12

8.87

[98.98] 

16.59.9

*292

46B4-31

54.39 

13.89 

3.88

1.58 

17.52

6.29

97.55 

25,51.4

*293

46B4-30

42.76 

9.82 

4.39

2.45 

24.17

12.44

96.03 

20,40,20

294 295

46B4-43 46B4-37

62.27 46.98 

15.85 14.37 

5.08 2.89

3.05 1.36 

6.79 19.72

3.01 11.96

96.05 97.28 

29,58,0 18,50,17

296 297

46B4-57 46B4-15

69.72 59.84 

22.16 16.40 

.72 4.10

.32 .36 

1.59 5.84 

f 2.84

I i.e..

_____ '.74

_____ 1.20

_____ ' 1.32

.57 "5.51

95.08 99.77 

30,63,0 26,60,1

298

46B5-7

65.05 

13.89 

.74 

2.60

1.22 

5.62 

3.13 

1.41 

2.30 

.28 

.46 

.08 

.11

.05

*2.83

99.77 

40,43,6

299

46B7-2

64.52 

14.58 

4.47

1.50 

2.35 

1.78 

1.86

'l.TO 

1.15 

*2.53

"3.57

100.01 

34,55.0

300

46B7-3

63.25 

15.34 

5.91

1.26 

2.34 

1.31 

1.50

*2.63 

1.20 

.17

".43 

.18 

.09 

.16 

.19 

Trace 

"3.96

99.92 

29,62,0

301

46B7-4

63.06 

13.00 

5.53

1.03 

2.47 

1.62 

1.82

*2.68 

1.30 

.25

.08 

.04 

.40 

.10 

.04 

"6.58

100.15 

34,55,4

302

46B7-6

65.89 

| 22.19

1.85 

2.36 

2.08 

2.36

"2.60

99.33 

29,62.0

Washington Continued

SiO,

AUO*

Fe.0. _.

MgQ ______

CaO

Na.O

K,0 

HO- ______

303

46B7-5

____ 63.58

 | 22.36

____ 1.82

____ 2.76

____ 2.02

304

46B9-2

62.50 

( 16.85 

t 5.09 

2.55 

5.20

| 3.26

*.38

305

46B13-4

84.8 

4.1 

6.9

306

46B13-5

82.2 

6.7 

5.2

307 308

46B13-6 46B13-7

77.7 65.43 

9.4 13.96 

6.2 5.35 

_____ 1.54

_____ 2.90

f 2.42

I ft .Uo

_____ M 2.42

_____ *2.32

303

46B7-5

TiO, ___ __ 

C(Organic) ______

Ignition loss *4.37

Total 99.18 

Class ___ 26.64.0

304

46B9-2

"3.68

99.51 

27,62.0

305

46B13-4

4.1

[99.9] 

70.30,0

306

46B13-5

4.2

[98.3] 

64,34,0

307

46B13-6

5.5

[98.8] 

54,45,0

308

46B13-7

0.87 

.20 

.49 

"None

99.98 

35.55,0

'include! TiO,.

'Combined water (+105«C).

1 Moisture (-105«C).

4MoUture loss, H|O - at 110°C.

§ TiO.

'ignition loss.

'Alkali or alkalies.

'sample air dried; moisture at 110°C.

'IncludesCrtOt. SO,, SrO. BaO, ZrO,. V.O,.

"so,.

"Combined water, ignition.

"CO,.

"Principally organic matter; sample dried at 100*C.

M At redness.

"At 110«C.
ANALYSES OF SAMPLES 29

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued Washington Continued

277. Tillamook County. S± sec. 18, T. 4 S., R. 10 W., Pacific City area. 

Sample C-l. ( Carter and others, 1964, p. 2, 5, JL2, 19, 20.) Sand, 

from dunes. Index maps. Screen analysis, beneficiation tests. Possible 

use: Glass.

278- 282. Wheeler County. Late Oligocene and early Miocene, John Day Formation. 

North of town of Mitchell. ( Hay, 1963, p. 200. 213, 234, 235, figs. 2, 

4, 5, 8.) Mineralogy. Index and geologic maps, geologic section.

278. NElSEi sec. 13. T. 10 S., R. 20 E. Analyst, H. Asari. Tuff, 

yellowish-gray, medium- to coarse-grained.

279. NWiSWi sec. 31, T. 10 S., R. 21 E. Analyst, H. Asari. Tuff, 

yellowish-gray, medium- to coarse-grained. Composite of two 

samples. Correlated columnar sections.

280. Center SWi sec. 33, T. 10 S., R. 21 E. Analyst, H. Asari. 

Claystone, yellow. Thin-section description.

281. Center SiSWi sec. 22, T. 10 S., R. 22 E. Analyst. H. Asari. 

Tuff, grayish-green, medium- to coarse-grained. Composite 

of two samples. Correlated columnar sections.

282. Center north edge NE corner sec. 1, T. 11 S., R. 20 E. Analyst, 

W. H. Herdsman. Tuff, white, fine-grained. Thin-section 

description.

283. Wheeler County. [T. 8 S., R. 24 E.],3 miles west of town of Spray.

Analyst, L. L. Hoagland. Lab. No. P-8373. (Jacobs, 1950, p. 2^6, 

15.) Volcanic ash. Firing tests. Possible use: Ceramic glaze.

284-286. Yamhill County. Probably post-middle Miocene. SWiSEi sec. 36,

T. 5 S., R. 7 W., 0.8 miles north of town of Willamina. Willamina 

Clay Products Co. ( Wilson and Treasher, 1938, p. 1, 19. 34-37, 38, 

84, 86, 88.) General: Clay, white, gray, and black: contains calcite 

crystals; plastic; at least 50 ft thick; overburden. Firing tests. Former use: 

Brick, face brick, bond in firebrick mix, stoneware. Use: Pottery.

284. Field No. 5A.

285. Field No. 58.

286. Clay, black. Mineralogy.

287. Yamhill County. Tertiary. [T. 5 S., A. 4 W.],divide between towns of 

Amity and Hopewell. ( Schenck, 1927, p. 565-567.) Shale, gray, 

tuffaceous, sandy. Mineralogy. Photomicrographs.

288. Yamhill County. [Ts. 4, 5 S., R. 5 W.],Willamina. Analyst, H. R. Shell. 

( Speil and others, 1945, p. 31, J32.) Clay, black. Mineralogy. 

Thermal analysis curve.

Washington

289. Asotin County. Probably Late Triassic( Mills, 1962, p. 240). [T. 7 N., 

R. 47 E.],near town of Ana tone, Lime Hill. Analyst, A. A. Hammer. 

( Shedd, 1913, p. 250. pi. 21.) Shale, red and green. Index map.

290. Chelan County. Late Cretaceous and Paleocene, Swauk Formation. 

[T. 22 N., R. 20 E.],town of Wenatchee. Analyst, E. H. Kane. 

( Coombs, 1952, p. 197, 202, 204.) Arkose, buff.

291. Chelan County. South central part sec. 15 and SEi sec. 9, T. 26 N., 

R. 19 E., 18 miles by road from town of Entiat. Gold Ridge deposit. 

( Danner. 1966, p. 82, 398, 406-408.) Limestone, white, fine- to 

medium-grained, crystalline; contains quartz and mica schist. Composite 

sample. Index and geologic maps, geologic sections. Possible use: 

Roofing granules, decorative stone.

*292.*293. Chelan County. Ni sec. 10, SEi sec. 3, T. 27 N., R. 15 E. Soda

Springs deposit. Drill hole 53. ( Danner, 1966, p. 82, 387-390, 392. 

397.) Limestone, light-gray to white, medium to coarsely crystalline. 

Mineralogy. Index and geologic maps. Former use: Cement. *Samples 

suggest about 16 percent more MgO and CaO than required for carbonate. 

[For other analyses from same drill hole, see sample 127, group D; 

samples 59, 60, group E; and sample 121, group Fj.]

292. Depth 41.5-44 ft. 293. Depth 15-41.5 ft.

294-296. Chelan County. NWi sec. 14, T. 27 N., R. 15 E. Rainy Creek deposit. 

( Danner, 1966, p. 82, 387, 393-396, 397.) Limestone, white to gray, 

medium to coarsely crystalline. Mineralogy. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement.

294, 295. Drill hole 54. [For other analyses from same drill hole, see 

samples 128, 129, group D; samples 61-63, group Ej 

sample 122, group Flt]

294. Depth 163-218 ft.

295. Depth 50-61 ft.

296. Drill hole 56. Depth 116-131.2 ft. [For other analyses 

from same drill hole, see samples 69, 70, group E; 

samples 127, 128, group FI; samples 37, 38, group Fj.]

297. Chelan County. [T. 27 N., R. 22 E.],town of Chelan. Owner,

H. E. Dunham. Analyst, W. R. Bloor. ( Shedd. 1910, p. 235. 236, 

307, 318, 319; Shedd, 1913, p. 174. 175. 248. pi. 21.) Clay, lightgray, not very plastic; 40 ft thicki overburden 1-3 ft. Index map. 

Physical properties, firing tests. Use: Brick. Possible use: Portland 

cement, tile.

298. Clallam County. Eocene. [Possibly T. 28 or 29 N., R. 9 W.],near

Solduc. ( Pettijohn, 1957, p.306; Pettijohn, 1963, p.£7.) Graywacke.

299-301. Columbia County. Pleistocene. [T. 10 N., R. 39 E.],town of Dayton.

E. L. Dexter brick yard. Analyst, W. R. Bloor. ( Shedd, 1910, p. 227- 

229. 307, 318, 319; Glover, 1941, p. 49, 73, 336, 342, 343.) Physical 

properties, firing tests. Use: Brick. Possible use: Tile.

299. Clay, yellow, plastic; 4-6 ft below surface.

300. Clay, 2-4 ft from top of bank; total depth worked 6 ft.

301. day, dark-brown, not plastic: contains organic matter; total 

depth worked 6ft. Surface sample.

302, 303. Columbia County. [T. ION.. R. 39 E.],Dayton. Analyst, G. P. Merrill. 

( Russell. 1901a. p. 43. 44.)

302. Residual lava subsoil, dull-yellow or brownish-yellow; depth 30 ft.

303. Residual lava soil, dark color; depth 2 ft.

304. Douglas County. [T. 29 N., R. 25 E.],near town of Bridgeport. T.P.Hopp 

property. Analyst, W.R. Bloor. (Shedd, 1910, p.307,318,319; Glover. 

1941. p.336.342,343.) Clay. Firing tests. Possible use: Brick, tile.

305-307. Grant County. T. 18N., R. 23 E., 13-16 miles southwest of town of 

Quincy. Analysts, K. A. Johnson, Anthony Centenero. ( Skinner and 

others, 1944, p. 1-4, 21, 22, 24-26, 27, 65.) Diatomite, channel 

sample. Physical properties, firing tests. Index maps. Possible general 

use: Concrete admixture, filtration, heat insulation. 

305, 306. SEi sec. 29. Deposit 10-40 ft thick, overburden 1-8 ft:

contains chert nodules. 

307. SEi sec. 32.

308. Grant County. [T. 22 N., R. 31 E.],south of town of Krupp. Analyst, 

George Steiger. Record 2028. ( Clarke, 1904, p. 370; Calkins, 1905, 

p. 47, pi. 1.) [Loess], soil. Index and geologic map.

487-187 O - 73 - 3
30 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing uncombined silica and clay each leu than 75 percent; uncombined silica and clay each

greater than carbonate (Group 6), common- and mixed-rock categories Continued

SiO, _ _______

A1,O, ___________

Fe,O, ___________

FeO ___________

MgO 

CaO _____________

K,0 

HO- ___________ 

TiO, ____________

PjO, ____________

Total _ _ ____

Cla_ ___ _ ____ 

SiO, ___ __ 

Aun.

Fe,0, 

Mga ____________

CaO _____________

HO- . 

TiO, ____________

MnO ____________

Total

Claw ___ _ _______

SiO, ____________

A1.0, ___________

Fe,0, 

FeO _____________

MgO ____________

CaO _____________

N«,0_ __ _ ___ ___

K.O 

HO- ___________

TiO, ____________

PtO, ____________

MnO ____________

Organic matter.

Total _______

Class.. __ _____

309

46614-5

69.93 

| "12.59

1.85 

8.69

.300

*7.22

[100.58] 

49.37.9

322

46617-39

78.0 

17.0 

1.16

[96.2] 

47,53,0

335

46817-26

68.98 

15.56 

4.90

.36 

.50 

1.64 

2.30

T .18 

.34

'5.54

100.30- 

36.59.1

310

46617-6

64.34 

( 20.78 

1 1.58

.54 

.68

| *3.66 

| § 8.63

100.21 

. 26,70,0

323

46617-42

66.69 

21.01 

1.14 

.32 

.33

| 4.20

T .62

'5.87

100.18 

28,67,1

336

46617-31

74.77 

16.06 

.70

.56 

.00 

1.64 

2.34

'.18 

.50

'3.08

99.83 

46.49.0

311

46617-29

73.50 

19.15 

.65

.12

.98

*2.40 

§ 3.50

100.30 

38,59.0

324

46617-43

81.40 

10.65 

1.90 

.18 

.50

3.00

T .20

'2.42

100.25 

60.36,0

337

46B21-1

58.08 

15.48 

5.05 

2.52 

2.21 

4.09 

2.33 

1.67 

3.78 

2.84 

1.04 

.17 

.08 

*.68 

**.07

100.09 

25,61.0

312

46617-11

61.58 

17.46 

6.69

1.37 

.40 

f .78 

\ 2.80

.65

'7.00

99.89 

23.70.2

325

46617-65

81.2 

12.5 

1.16

94.9 

58.40.0

338

46621-4

58.75 

18.27 

3.86

1.68 

.86 

1.53 

2.18

T 2.12 

.85

1.20

»8.66

99.96 

22.65.5

Chemical analyses Continued

Washington Continued

313 314 315

46617-13 46817-52 46817-18

78.60 58.50 62.11 

13.08 19.02 17.59 

.114 3.10 4.77 

2.29 _____ . «_,. ___

.648 *1.13 2.26 

1.22 *4.37 1.53 

 \ 2 ^ C 1.65

_____ J ' \ 2.30

\ *3 30 / - - 

/ ' \ 6.80 1.63 

_____ _____ .51

_____ *4.66 '5.60

[99.25] 99.70 99.95 

55.40,2 21,66.10 26.66,0

Washington Continued

326 327 328

46617-45 46617-34 46617-49

58.96 70.44 74.9 

16.57 15.33 19.4 

6.10 3.59 1.86

2.37 2.52 ______

f 3.24 2.90 ______

X .83 .86 ______

T 3.58 _____ ______

».65 _____ _____

'3.36 '2.19 ______

99.78 [99.12] [96.2] 

23,66.0 39,52,0 39,61,0

Washington Continued

339 340 341

46621-5 46640-156 46640-162

72.50 62.62 65.66 

13.05 19.14 16.66 

4.53 3.26 6.56

.70 2.79 3.76 

.60 5.15 3.10

1.84 J 3 '°7 \ Trace

T 2.00 T .48 ______

.42 _____ ______

'4.24 '3.46 '3.40

100.77 99.97 99.85 

44,52,0 25,64,0 29,63,0

316

46617-21

72.30 

19.95 

.71

Trace 

.52

\ *3.094 

I '3.50

[100.07] 

36,60,0

329

46617-32

69.71 

18.39 

"1.44 

.15 

.35 

.83 

.19

8.94

100.00 

36,62,1

342

46625-5

60.01 

12.37 

8.99

4.20 

2.13

'11.68

[99.38] 

28,59.13

317

46817-44

70.4 

21.8 

2.88

[95.1] 

29,71.0

330

46617-17

63.08 

17.26 

4.63 

1.96 

1.32

f *3. 98 

} '7.64

99.87 

27.65.0

343

46626-75

71.00 

1*13.20

*3.16 

*3.33

6.40

[97.09] 

49,39.6

318

46617-36

69.50 

18.92 

3.27

.37 

.56

'7.55

100.17 

32.66.2

331

46617-27

69.50 

16.36 

4.53 

.47 

.95

*2.25 

'6.35

100.41 

35,61,0

344

46626-48

81.16 

*11.06

*1.29

2.04

[96.34] 

63.32,0

319

46617-35

81.3 

14.7 

.72

[96.7] 

55.46,0

332

46817-30

73.60 

19.80 

.40 

Trace 

.67

2.65

3.10

100.22 

38.59.0

345

46626-47

78.00 

*11.24

*1.63 

*1.22

3.80

[95.89] 

59.33.2

320

46817-37

73.67 

17.07 

1.39

.51 

.83

'6.47

[99.94] 

42.55.3

333

46617-20

62.42 

17.98 

4.34 

1.84 

1.34 

f 1.56 

\ 2.78

.68

'5.74

100.12 

26.66,0

346

46626-73

65.72 

* 17. 84

*1.82 

*2.45

7.44

[95.27] 

36.52.6

321

46617-38

70.74 

18.48 

1.62

.67 

.55

'8.11

[100.17] 

36.62.2

334

46817-28

72.27 

16.16 

1.56 

.29 

.00 

1.68 

2.90

T 1.20 

.68

'3.58

100.32 

42.53.0

347

46626-74

66.50 

"13.32

*4.16 

*4.54

8.42

[96.94] 

44,39,11

1 Calculated from reported MgCO,, CaCOj, and(or) C.

'Alkalies.

4Reported as alkalies, 0.114 percent; soda and potash, 2.98 percent.

'Combined watu.

'Common water.

T Sample air dried; moisture at 110°C.

'Sample dried at 110°-112«C; ignition loss 1,000»-1.100°C.

'Combined water, ignition.

"CO|, calculated t(om reported MgCO, and CaCOs.

"iron oxide.

11 TiO,. 1.15 percent; MnO, 0.65 

percent (Shedd, 1910. p. 319).

* Alumina and iron oxide.

* CO,.

Spectrochemical analysis

[ The metallic elements not detected in the spectrochemical analysis: UtO.BeO.BjOt.ScjOj.ZnO.GatOt.GeOj.AstOj.YtO,, Nb^.MoOt.AgjO.Ru.Rh.Pd.CdO.IntOj.SnOj.SbjO,,

,,^

309

K,Q _____ ____ .40

309

VtO, ________ .031

309

MnO _________ .18

309

NiO _________ 0.024

CoO ________ .0053

309

Cud ___________ 0.020

SrO .016

309

ZrO, ______ 0.020
ANALYSES OF SAMPLES 31

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

309. Grays Harbor County. Early( ?) and middle Eocene, Crescent Formation. 

NWi sec. 13, T. 23 N., R. 7 W.. about 11.5 mile* by road north of 

town of Grisdale. Schofield Creek deposit. Analyst, under supervision 

of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample GH 2. 

( Danner, 1966, p. 16, 19, 82, 421, 423, 447, 456.) Limestone, red; 

contains calcite veins; 25-30 ft exposed. Mineralogy. Chip sample. 

Index and geologic maps.

310. King County. Cretaceous. Sec. 27, T. 21 N., R. 6 E., Green River.

Pacific Stoneware Co. ( Geijsbeek, 1911, p. 753, 755, 759, 760, 763. 

764.) Clay, plastic. Index map. Use: Stoneware.

311. King County. Cretaceous. Sec. 34, T. 23 N., R. 7 E., town of Taylor. 

Gladding. McBean^nd Co. ( Geijsbeek. 1911, p. 755. 759, 763, 764; 

Wilson, 1934, p. 918-100; Hodge, 1938e, p. 777, 778-783.) Clay or 

kaolin rock, buff; 3-20 ft thick; main body of clay 24-36 ft thick. Mineralogy. Measured section. Physical properties, firing tests. Use: Face 

brick, firebrick, flue lining, sewer pipe, roofing tile.

312, 313. King County. Eocene and Oligocene, Puget Group. NEi sec. 26, T. 21 N., 

R. 6 E., near town of Kummer. Gladding, McBean,and Co. ( Glover. 

1941, p. 128, 344, 345.)

312. Analyst. W. R. Bloor. ( Shedd, 1910, p. 256. 257, 261, 262. 

307, 318, 319.) Shale, gray, fine-grained, not plastic. 

Measured section. Physical properties, firing tests. Possible 

use: Sewer pipe.

313. Analyst. W. J. Rattle. (Roberts, 1902b. p. 14,^5.) Sand, fine. 

Use: Brick.

314. King County. Puget Group. [T. 23 N., R. 4 E.], 0.5 mile north of Black 

River junction. Beacon Coal Mining Co. Sample 395. ( Glover, 1941, 

p. 112, 117, 118. 334, 337, 345.) Shale, light-gray, very fine and 

uniform in texture, conchoidal fracture. Measured section. Physical 

properties, firing tests. Use: Structural wares.

315. King County. Puget Group. [T. 23 N., R. 5 E.],0.5 mile east of town 

of Renton. Gladding, McBean,and Co. quarry. Analyst, C. C. Todd. 

Sample 15. ( Shedd, 1910, p. 249. 250. 318, 319; Glover, 1941, p. 

112-115, 344, 345.) Shale, light-gray, fine-grained, plastic; 150ft 

thick; overburden 6-10 ft. Measured section. Physical properties, firing 

tests. Use: Brick, refractories, structural ware.

316. King County. Puget Group. Sec. 34, T. 23 N., R. 7 E., near Taylor. 

Gladding, McBean.and Co. Analyst. W. J. Rattle. ( Roberts, 1902b, 

p. Jj>; Shedd, 1910, p. 263, 266. 318, 319; Wilson, 1934, p. 98-100.) 

Clay or kaolin rock, white; 24-36 ft thick. Mineralogy. Use: Face brick, 

fine lining, sewer pipe, roofing tile. Possible use: China.

317-325. King County. Miocene, Hammer Bluff Formation. T. 21 N., R. 6 E.,

10 miles east of town of Anburn, Hammer Bluff. ( Glover, 1941, p. 137- 

139. 144-147, 337, 342, 343-345.)

317. NEi sec. 28, roadcut. Sample 158. Clay, white, sandy; 

uniform coarse texture; 12 ft bed. Mineralogy. Physical 

properties, firing tests. Possible use: Refractories.

318. NEi sec. 28. Hammer prospect. Clay, gray, sandy.

319. SEi sec. 28. Gladding, McBean,and Co. pits. Sample 164. 

Clay, gray, fine- to coarse-texture, plastic; about 30 ft 

thick; overburden. Measured section, generalized geologic 

section. Physical properties, firing tests. Use: Terra 

cotta, pottery, structural ware. Possible use: Brick. 

320, 321. SEi sec. 28. Gladding, McBean.and Co. pits. Clay, gray; 

about 30 ft thick; overburden. Measured section, generalized geologic section. Use: Terra cotta, pottery.

322. SE« sec. 28. Northern Clay Co. Clay, gray, iron-stained. 

Surface sample with coarse grains of quartz and quartz!te. 

Physical properties, firing tests. Possible use: Terra cotta, 

refractories, structural ware.

323. SEi sec. 28. Gladding, McBean,and Co. pits. Analyst, 

W. R. Bloor. Sample 24. ( Shedd, 1910, p. 269, 270. 

307, 318, 319, 321.) Clay, white; contains very fine grit; 

9 ft thick. Deposit 30 ft thick. Measured section, generalized geologic section. Physical properties, firing tests. 

Use: Stoneware. Possible use: Terra cotta, pottery, 

structural ware.

324. SEi sec. 28. Gladding, McBean,and Co. pits. Analyst,

W. R. Bloor. ( Shedd, 1910, p. 269, 270. 307, 31B, 319,

Washington Continued

326.

327.

328.

329.

330.

331-336.

321.) Sand. Measured section, generalized geologic 

section. Use: Ceramics, refractories. 

325. Old Northern Clay Co. pit. Sand, gray, clayey.

King County. Pleistocene. [T. 24 N., Rs. 3, 4 E.], town of Seattle. 

Seattle Brick and Tile Co. Analyst, W. R. Bloor. Sample 26. ( Shedd, 

1910, p. 239-241, 243, 307, 318, 319; Glover, 1941, p. 51, 338, 

344, 345.) Clay; blue when wet, gray when dry; stratified, fairly 

plastic; weathers yellow; 20 ft exposed. Physical properties, firing tests. 

Use: Brick, tile.

King County. Tertiary and Quaternary. Sec. 19, T. 19 N.. R. 10 E., 

5 miles southeast of Greenwater. Road quarry. Sample 83. ( Glover, 

1941, p. 108, 337, 344, 345.) Shale, yellow. Use: Probably none.

King County. Tertiary and Quaternary. [T. 20 N., R. 8 E.],8 miles east 

of town of Enumclaw. Sample 185. (Glover, 1941, p. 108-110, 337, 

345.) Clay, nonuniform in color and texture; 15 ft thick. Physical 

properties, firing tests. Use: Probably none.

King Connty. [Probably T. 21 N., R. 6 E.],Green River, Macintosh bed. 

Analyst. G. A. Bethune. (Bethune, 1891. p. 106; Glover, 1941. p. 344, 

345.) Clay. Firing test. Possible use: Refractories.

King County. [T. 23 N., R. 5 E.],Renton. Denny Renton Clay and Coal 

Co. (Geijsbeek, 1911, p. 755, 759. 763, 764.) Shale clay. Index map. 

Use: Face brick, paving brick, sewer brick.

King County. Sec. 34, T. 23 N., R. 7 E., near Taylor. Gladding, 

McBean,and Co. ( Hodge, 1938e, p. 777. T78-783.) Mineralogy. 

Measured section. Physical properties, firing tests. Possible use: China, 

pottery, and other ceramic ware.

331. ( Geijsbeek, 1911, p. 755, 759, 763. 764.) Clay, purple. 

Index map. Former rue: Brick, terra cotta.

332. ( Wilson, 1934, p. ^8-100.) Clay or kaolin rock, white;

3-20 ft thick; main body of clay, 24-36 ft thick. Former 

use: Face brick, terra cotta.

333-336. Analyst. W. R. Bloor. Samples 16-19. (Shedd, 1910, p. 

263-JW56, 307, 318, 319, 321; Wilson, 1934, p. JHJ-100.) 

Use: Brick, flue lining, sewer pipe, roofing tile.

333. Clay, light-yellow, plastic. Microscopic description.

334. Clay, light-buff, almost white, rather coarse grained, 

not very plastic, refractory.

335. Clay, purple, sandy, not very plastic.

336. Clay, white, sandy, refractory; 3-20 ft thick; main 

body of clay, 24-36 ft thick.

Lewis County. Late Eocene to early Miocene, Lincoln Creek Formation. 

NEi NWi sec. 35, T. 15 N., R. 3 W., 3 miles northwest of town of 

Centralia. Analyst. R. N. Eccher. ( Snavely and others, 1958, p. 3, 

£1-43, pi. 1.) General: Silts tone, tuffaceous, brownish-gray, finegrained, massive, fossiliferous. Mineralogy. Index and geologic maps, 

detailed measured section.

338,339. Lewis County. Pleistocene. [SEi T. 14 N., R. 2 W.],north of town of 

Chehalis. Cbehalis Brick and Tile Co. Analyst, W. R. Bloor. ( Shedd, 

1910, p. 296, 297. 307, 318, 319; Glover, 1941, p. 186, 187, 344, 345, 

app. 3, table 2.) Physical properties, firing tests. Use: Hollow block, 

brick, drain tile.

338. Sample 29. Clay, dark-colored, plastic.

339. Clay, yellow, surface sample.

340. Okanogan County. Pleistocene. [T. 33 N., R. 26 E., town of] Alma. 

C. C. Parkman property. Analyst, W. R. Bloor. Sample 35. ( Shedd. 

1910, p. 307, 318, 319; Glover, 1941, p. 192, 193, 346, 347.) Clay.

341. Okanogan County. Pleistocene. T. 38 N., R. 31 E., north of town of 

Wauconda. Analyst, A. A. Hammer. Sample 36. ( Shedd, 1910, p. 

318, 319; Shedd, 1913, p. 170; Glover, 1941, p. 192, 193, 346, 347.) 

Clay, light-yellow, some grit. Possible use: Portland cement.

342. Pacific County. Eocene, Oligocene, or Miocene. [T. 9 N., R. 9 W.], 

town of Knappton. Sample 106. ( Glover, 1941, p. 195, 346, 347.) 

Shale, gray, concretionary.

343-347. Pend Oreille County. Paleozoic. [T. 38 N., R. 43 E.],5 miles south of 

town of Metaline Falls, Sand Creek. Inland Portland Cement Co. 

( Bancroft, 1911, p. 188. 190, 192; Eckel. 1913, p. 366, 367.) Shale, 

dark-blue or black. Index map. Use: Cement.

337.
32 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska. Idaho, Oregon, and Washington.containing uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate (Group BX common- and mixad-rock categories Continued

Chemical analyses Continued

Washington Continued

348 349

46B26-43 46B26-37

SiO,'

Al»0, ________

Fe,0, ________

MgQ 

CaO

CO, 

Total ___ ,

Class _______ ,

_________ 74.12

V 12.16

_. __ ________ *2.90

_______ ___ *2.80

__________ *5.36

rat ^AT

 54,35,11

65.64 

11.20

'4.51 

*5.43 

*9.20

[95.98] 

47,33,19

350

46B26-44

65.96 

12.64

*4.18 

*5.56 

*8.93

[97.27] 

45,37,19

351 352

46B26-45 46B26-38

67.08 65.72 

10.84 8.84

*4.11 *4.85 

*5.35 '7.28 

*8.69 'll.Ol

[96.07] [97.70] 

49,32.18 51.26.23

353

46B26-39

66.48 

12.08

*4.02 

*6.40 

*9.40

[98.38] 

46,34,20

354

46B26-41

70.68 

12.80

*3.40 

*3. 42 

*6.40

[96.70] 

49,37,13

355

46626-42

71.12 

13.36

*2.53 

*2.98 

'5.11

[95.10] 

49,39.11

356

46B26-46

71.40 

14.04

*3.26 

*3.07 

*5.96

[97.73] 

48,40,12

357

46626-40

1 68.40 

12.04

*3.05 

*5.35 

*7.54

[96.38] 

48,35,16

358

46B26-49

57.02 

20.62

3.67 

7.01

[88.32] 

23,60,14

359

46B26-51

63.40 

( 16.10 

I «4.10 

2.75 

5.34 

4 5. 00

96.69 

30,58,0

Washington Continued

SiO, ___.

Al,0, .

Fe,0, .

CaO ________ .

Na.0 _.

H,0- .

TiO, _______ .

Ignition loss_____.

Total ___ .

Class __________

360

46626-50

__________ 63.20

 20.20

2.75

. _________ 5.34

::::::::::: :::::: }

. _________ [91.49]

. __ __ 29.59.7

361

46626-2

74.23 

19.03 

1.07 

.54 

Trace

.47 

*.20

'4.52

100.06 

39,60.0

362

46626-15

68.33 

22.71

2.55 

1.88

[95.47] 

30.65.0

363 364

46B26-14 46626-5

66.32 71.74 

24.48 20.56

2.68 2.23 

1.96 1.97

[95.44] [96.50] 

25.70.0 37.58.0

365

46B26-16

68.94 

21.64

2.24 

1.36

[94.18] 

33.63.1

366

46B26-8

76.00 

17.02

1.66 

1.46

[96.14] 

48.49,0

367

46626-9

76.52 

16.38

1.77 

1.36

[96.03] 

49.48,0

368

46626-7

70.90 

20.04

1.99 

1.30

[94.23] 

37.59,2

369

46B26-10

77.95 

15.53

1.26 

1.61

[96.35] 

52,45,0

370

46B26-6

71.58 

17.93

1.67 

1.46

[92.64] 

42.52.6

371

46B27-2

67.24 

19.23 

2.50 

.49 

.34

\ .88 

*2.12 

.25 

"6.66

7 99. 71 

30.67.2

Washington Continued

SiO, _______ .

Al,0, _______ .

Fe,0, .

FeO ________ .

Mga .

CaO ________ .

Na20 .

K20 .

H2O+ ______ .

H20- , 

Ti02 ____.

PjO, .

MnQ ________ .

C02 .

s ________ .

BaO ________ .

Ignition loss_____.

Total ___ .

Class _______ .

372 373

46627-9 46627-6

 67.3 74.24

13.8 1 . f

24 16 ' 89 {

 1.10

 _ 2.04

.__ _____ 1 a

... / 5 ' 72 '

10.9 ______

[94.4] [99.99]

. _ 40,54,0 46,51,0

374

46B27-4

62.43 

18.79 

4.20

1.53 

2.12

10.93

[100.00] 

24,69,7

375

46629-65

60.21 

16.21 

5.10

4.15 

2.90 

1.51 

2.10

7.10

99.28 

26,61,4

376 377

46B29-71 46829-114

73.5 75.58 

15.1 I ,

on

8

QQ

_____ .175

4.3 B 7.45

[96.8] [99.52] 

42,54,0 64,21,13

878

46830-1

62.70 

f 17.48 

\ 1.12 

3.06 

1.96 

4.64 

4.07 

1.24 

/ "2.02 

\ ".70 

.54 

.16 

Trace 

Nil

.06

99.73 

31.53,1

379

46831-62

63.94 

5.94 

2.14

1.30 

15.16

11.74

[100.22] 

51,23.22

380

46631-4

61.6 

| *25.4

'l.l *4.0

\ *2.94

»4.4 

1.6

[101.0] 

19,68,10

381

46832-15

59.59 

( 18.93 

I 4.69

1.14 

.83

I 3.10

5 2.20 

.65

8 8.94

*100.41 

21,72,4

382

46632-13

76.96 

16.39 

.31

.08 

.40 

Trace 

.20

*.29 

.44

'5.48

100.55 

48,51,1

383

46B32-3

75.04 

19.18 

.76

} .«

'.36 

.15

'4.54

100.48 

40,60,0

384

46B32-4

72.68 

13.15 

2.01

1.21 

.59 

] 1.51 

I .34

M 8.49

99.98 

47,47,4

*68.04 percent (Shedd, 1913, p. 251).

2 4.01 percent (Shedd, 1913. p. 248) .

'Calculated from reported MgCO. and(or) CaCOj.

4 Ignition loss.

'sample air dried; moisture at 110°C.

'Combined water, ignition.

T 99.79 percent in text.

'Sample 373, iron and alumina; sample 380, iron and aluminum oxides.

'R.O..

'Alkalies.

U 105°C.

B Water and alkalies.

B Sample dried at HO<>-112«C; ignition loss 1.000*-1.100«C.

M Also reported as moisture, combined water, ignition.

* 100.48 percent in text.
ANALYSES OF SAMPLES 33

Spectiochemical analysis 

[ The metallic elements not detected in the specttochemical analysis: LijO.BeO.BjOj.ScjOj.ZnO.Gaj

Na,0 ____________

K,O ____________

TiO. ___________

377

_______ 3.50

_______ 1.35

_______ .76

V,0S ___________

Cr.0, __________

MnO ___________

377

________ .12

CoO _________ .

CuO ___________

377

_______ 0.0052

.0036

_______ .024

SrO ________

ZrO. _______

A&0 _______

377

_____ 0.010

_____ .015

_____ .0019

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

348-357. Pend Oreille County. T. 38 N., R. 43 E., about 4 miles from town of 

Metaline Falls, Sand Creek. Inland Portland Cement Co. qnarry. 

Samples 15, 17-25. ( Shedd. 1913, p. 180, 194. 195, 251. pi. 21.) 

Shale. Index maps. Use: Portland cement.

358-360. Pend Oreille County. [T. 39 N., R. 43 E.], Metaline Falls. Inland

Portland Cement Co. Samples 9, 32, 33. ( Shedd, 1913, p. 180, 195, 

196, 249. pi. 21; Glover, 1941. p. 201, 346, 347.) Clay, blue or 

gray, fine-grained; free from grit, some sandy layers. Index maps. 

Possible use: Portland cement. 

360. Pleistocene. T. 38 N., R. 43 E., Sand Creek.

361. Pend Oreille County. Pleistocene. [T. 38 N., R. 42 E.], southeast of 

town of Newport. Analyst, W, R. Bloor. Sample 82. ( Shedd, 1910. 

p. 212, 213. 307. 321; Wilson. 1934, p. 64, 146; Glover, 1941, p. 201, 

205, 346, 347.) Clay, white, sandy, little plasticity; stratified; microscopic description. Use: Filler, pottery, refractories.

362-370. Pend Oreille County. Pleistocene. T. 38 N., R. 43 E., near town of 

Cement. Jordan property. Analyst, C. M. Fassett. Samples 14-22. 

( Shedd. 1913, p. 180, 187, 188. 248. pi. 21; Glover. 1941, p. 201. 

346, 347.) Clay, buff or blue, fine-grained, plastic; some grit. Index 

maps.

371. Pierce County. [Miocene or later. SWi T. 16 N., R. 4 E.] , town of 

LaGrande. Denny-Renton Clay and Coal Co. Analyst, W. R. Bloor. 

Sample 37. ( Shedd, 1910, p. 274, 275, 307, 318, 319; Glover, 1941, 

p. 205-207, 339, 346, 349.) Clay, light-colored with a touch of yellow, 

fairly plastic, medium-fine-grained; 12 ft exposed; overburden. Physical 

properties, firing tests. Use: Terra cotta.

372. Pierce County. Ei sec. 8, T. 19 N., R. 3 E., 2 miles west of town of 

Parkland. Analysts, K. A. Johnson, Anthony Centenero. ( Skinner and 

others, 1944, p. 1-4, 21, 30, 31, 58, 65.) Diatomite; brown when dry, 

black when wet; bog deposit; auger sample 15-30 ft thick. Index 

maps. Physical properties, firing tests; pH values. Possible general use: 

Concrete admixture, filtration, heat insulation.

373. Pierce County. Probably near center sec. 22, T. 19 N., R. 6 E., near

town of Pittsburg. ( Hodge, 1938c, p. 3, 129, 139, 140.) Sand; contains 

gravel, clay, or decomposed sandstone; about 3 ft thick; overburden. 

Index maps. Possible use: Concrete.

374. Pierce County. [T. 20 N., R. 3 E., near] town of Tacoma. Analyst, 

L. J. Clark. ( Ries, 1895, p. 570, 571.) Clay, white. Use: Brick 

[implied].

375. Skagit County. Pleistocene. [T. 35 N., R. 8 E.], near town of Concrete, 

about 2 miles above mouth of Jackman Creek. Analyst, A. A. Hammer. 

Sample 57. ( Shedd, 1913, p. 226, 227. 249, pi. 21; Glover, 1941, 

p. 220, 348, 349.) Deposit: Clay, light-gray when dry; slightly bluish 

tinge when wet; stratified, free from sandy layers; uniform, very fine 

grained. Index map. Possible use: Portland cement.

376. Skagit County. SEi sec. 25, T. 34 N., R. 4 E., about 1 mile southeast of 

Big Lake post office. Analysts, K. A. Johnson, Anthony Centenero. 

( Skinner and others, 1944, p. 1-4, 21, 31, 65, 77, 81.) Diatomite,

Washington Continued

white; 6 ft exposed; samples taken about every 25 ft for a distance of 

200 ft. Index maps. Physical properties, firing tests. Photomicrographs. 

Possible general use: Concrete admixture, filtration, heat insulation.

377. Skagit County. SWiNEi sec. 30, T. 34 N.. R. 10 E. Sauk River Bridge 

deposit, roadcut. Analyst, under supervision of Mark Adams; spectrochemical analyst, C./E. Harvey. Sample St 25-1. ( Danner, 1966. 

p. 16, 19, 82, 303, 451. 463.) Shale, calcareous. Chip sample taken 

across 100 ft. Index and geologic maps.

378. Skamania County. Pleistocene. [T. 8 N., R. 5 E.], Mount St. Helens, 

eastern base of cone. Analyst, W. H. Herdsman. Sample 2. 

(Verhoogen. 1937. p. 264, 267, 270, 277, 278. 293; Coombs, 1960, 

p. 11, 12, 15.) Tuff, white, porous; in layers 5 ft thick. Thin-section 

description. Index and geologic maps, geologic section. Photomicrograph. Norm.

379. Snohomish County. Permian. Sec. 16, T. 32 N., R. 6 E., about 6.5 miles 

by road east of town of Bryant. ( Danner, 1966, p. 82, 306, 309, 310.) 

Shale, calcareous; contains calcite veinlets; composite sample. Index 

and geologic maps, geologic section. Possible use: None, rock impure.

380. Snohomish County. Pleistocene. [T. 30 N., R. 7 E.] , near town of

Granite Falls. Analyst. A. H. Cederberg. ( Landes, 1905 [1906], p. 

^80; Glover, 1941, p. 225, 349.) Clay. Possible use: Cement, structural materials, red ware.

381,382. Spokane County. Middle to late Miocene, Latah Formation. Analyst,

W. R. Bloor. ( Shedd, 1910, p. 169-J.71, 172, 175, 178-^80, 181, 307. 

320, 321; Glover, 1941, p. 231, 233, 253, 254, 256, 267, 350, 351.) 

Mineralogy. Index and geologic map, generalized geologic section. 

Physical properties, firing tests; microscopic description.

381. SW corner sec. 24, T. 25 N., R. 42 E., near town of Spokane. 

Dishman pit. Sample 69. Shale, light-gray, fossiliferous, 

very fine grained, little grit, fairly plastic; 75-100 ft exposed; 

overburden. Use: Brick.

382. SEi sec. 35, T. 25 N., R. 44 E.. 2.5 miles east of town of

Chester. Sommers pit. Sample 61. Clay, white; some sand; 

fairly plastic; maximum thickness, 45 ft; overburden 1-6 ft. 

Use: Face brick, firebrick, sewer pipe.

383, 384. Spokane County. T. 24 N., R. 44 E., near town of Mica. Gladding, 

McBean. and Co. pit. ( Shedd, 1910, p. 182-JJJ6. 307, 320, 321.) 

Index and geologic maps. Use: Face brick, firebrick, electric conduits, 

terra cotta, sewer pipe, vitrified structural ware.

383. Probably Miocene. Sec. 23. Analyst, W. R. Bloor. Sample 52.

( Wilson, 1934, p. 14, 16, 34, 36-39. 40; Hodge, 1938e, p.495. 

496, 503, 510, 512, 516. 519, 526, 527, 529, 533, 534, 547, 

548, 552.) Clay, white, coarse-grained, fairly plastic. Mineralogy. Physical properties, firing tests; microscopic description.

384. Analyst, O. A. Thomle. Sample 54. ( Glover. 1941. p. 231, 233. 

348, 349.) Clay, light-gray, fine-grained, very plastic; some 

grit. Generalized geologic section. Physical properties.
34 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 2. Analyses of samples from Alaska, Idaho, Oregon, and Washington.comaining uncombined silica and clay each less than 75 percent; uncombined silica and clay each

greater than carbonate (Group B), common and mixed-rock categories Continued

Chemical analyses Continued

Washington Continued

"'0. ___________ .

Al,0, .

Fp.T>.

MgQ. , CaO _ _ ___ _ __ _.

Na,0 _ .

K-D

H,0- .

TiO»

Class ___ _______

385

46B32-40

______________ 60.53

______________ '16. 15

_ ___ _____ . '6. 28

______________ 2.60

______________ 1.08

______________ 3.23

______________ *1.36

 _ __ __ _ .57

__ ____________ *5.76

______________ 25,65,0

386

46B32-6

73.83 

15.54 

2.00 

.44 

.64 

.76 

1.74 

.90 

.30 

*4.48

100.63 

44,53,0

387

46632-42

64.98 

15.57 

5.34 

.94 

1.64 

1.60 

1.40 

*2.75 

1.15 

*4.33

99.70 

31,62,0

388

46B32-51

79.59 

11.58 

*2.15 

.05 

.12 

1.03 

.94 

 .40 

.23 

4.44

100.53 

57,41.0

389

46B32-7

77.00 

13.80 

1.70 

.54 

.93 

1.42 

.28

.50 

T 4.40

100.57 

51,46,1

390

46632-43

65.96 

18.28 

4.80 

.72 

1.51

1 3.52

*1.70 

.11 

'3.44

100.04 

28,66,0

391

46632-8

73.58 

17.29 

1.73 

.32 

Trace

.40

.86 

.04 

*5.44

99.66 

41,57,1

392

46632-50

61.72 

18.53 

2.01 

*1.47 

*3.82 

f 2.01 

I 2.19

'8.31

100.06 

27,61.7

393

46632-54

67.16 

19.26 

3.26 

1.13 

.47

| 1.63 

*1.76

*5.32

99.99 

29.67.0

394

46632-55

71.28 

17.46 

1.80 

.05 

.40 

f .28 

I 2.74 

.70

*5.50

100.21 

38,57.1

395

46632-16

69.75 

20.91 

1.34 

.76 

.43

} »

*6.60

100.00 

31,66,2

Washington Continued

SiO, . A1,0S .

Fp.O.

FeO ____________ . MgQ. .

CaO .

Na,0 _ .

K,O_ _ . ____ __«. _ ,

H,0+ _ . .

H,0- ________ . 

TiO»

P-D_

MnO___ _________ .

CO, .

SiQ.

Total ______ .

Class ____

396 397

46B4 1-184 46B4 1-182

90 9

.5

 I go _

 -__ *1.68 __ ___

______ '6.66 *7.4

 __ _ 99.60 [98.2]

______ 25.73,1 34.61.3

398

46B43-159

61.6 

14.5 

2.7 

1.5 

2.3 

4.8

r 2.1

I 2.0 

} 7.8

.64 

.22 

.08 

.05

100.3 

33.54.0

399 400

46B41-201 46B41-197

62.74 

16.45 

2.62 

1.91 

2.41 

3.68 

3.05 

3.53

2.69

Trace , 

.65 

Trace .

99.73 

31,54.1

59.76 

17.29 

5.71

4.11 

2.94 

1.81 

1.51

'6.86

99.99 

23,66.2

401

46B4 1-172

69.12 

23.40 

.96

.92 

Trace 

.15 

.17

4.92

99.64 

27.72.0

402

46B41-173

59.24 

7.36 

3.00

2.80 

11.08

15.91

99.39 

43,31.26

403

46B4 1-174

54.41 

16.83 

3.21

Trace 

12.54

12.83

99.82 

21,58,18

404

46641-215

72.01 

12.52 

4.35

1.99 

2.02 

1.36 

1.80

3.18

99.23 

45.47,0

405

46641-239

72.64 

12.70 

4.66

1.97 

1.64 

1.30 

1.43

3.54

99.88 

45,49,0

406

46641-193

66.68 

10.82 

5.02

1.31 

4.62

7.22

95.67 

42,45,7

407

46641-119

82.64 

7.52 

5.26

.96 

.99

2.23

99.60 

63,34,0

Washington Continued

SiO, .

Al,0, .

Fe,0, .

FeO _____________ .

MgQ. .

CaO _____ . ______ .

Na,0 _________

K,0 .

H,O+ ___________ .

H,O- ___________ .

TiO, _ .

Pf>t ____________ .

MnO ______________

CO, _____________ , SO, _____________ ,

Total _____ . __ ,

Class ________ . __

408 409

46B41-190 46B41-188

65.80 65.90

___ . __ 18.78 16.26

______ 5.42 3.95

2.46 1.98

 __ 1.36

. } f 1.92

._____.; 3 ' 39 i 3.04

 ___ _____ .85

______ '3.14 '3.28

______ 26,68,0 33.58,0

410

46B41-244

65.34 

13.01 

8.51

.53 

6.30

f B 5.14

"Trace

1.17

100.00 

33,55,0

411

46B34-2

74.00 

13.51 

B 6.65

1.65 

3.61

...... f

None

None

[99.42] 

43,52.0

412

46B34-4

59.45 

15.49 

4.29 

2.12

1.83 

2.83 

2.09 

1.89 

5.02

.83

.14

"1.56

100 . 22 

27,61,0

413

46B37-121

58.32 

15.98 

5.21

2.92 

4.88

12.63

[99.94] 

24,61.15

414

46637-120

68.25 

13.20 

6.15

.90 

] "(3-4)

7.05

[95.55] 

38,56.2

415

46637-21

60.31 

12.37 

2.11

.54 

.57

2.03 

| 5.93

*6.74

99.60 

45,45,2

416

46637-26

54.16 

14.97 

7.91

4.15 

2.62

13.46

*[97.27] 

19,65.13

417

46637-32

72.69 

| 22.19

U 1.18 

"1.21

"2.24

[99.51] 

36,60,5

418

46639-1

72.60 

f 12.44 

"^ 7.43

1.28 

2.59

1.26

.04

99.16 

42.52.2

419

46639-4

59.5 

15.1 

4.6

9.9

[89.1] 

28.62.0

lAltOs . 16.28 percent; Fe2Ot, 6.15 percent 

(Shedd, 1910. p. 321).

'includes FeO.

*MgQ, 3.82 percent, CaO, 1.47 percent 

(Shedd, 1910, p. 321).

4Sample air dried; moisture at 110°C.

'Moisture at 212°F.

'Combined water, ignition.

'Reported as volatile,

'Moisture, combined water, ignition.

'Moisture, combined water, ignition; sample air dried.

* Oxide of iron.

"Calculated from reported MgCO,, CaCO,, and(or) C.

Alkalies and undetermined, 

by difference.

"Alkali, not included in total. 

uAt 110«C.

*99.62 percent in text. 

"Contains organic matter.
ANALYSES OF SAMPLES 35

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

385. Spokane County. Pleistocene. [NWiNEl T. 26 N.. R. 43 E.],near town 

of Mead. I. T. Davie Brick Co. pit. Analyst, W. R. Bloor. Sample 68. 

( Sbedd, 1910, p. 174, 175, 307, 320, 321; Glover, 1941, p. 231. 233, 

278, 279. 340, 350, 351.) Clay, light-yellow, fine-grained, fairly 

plastic; stratified, some sandy layers; 20 ft thick. Mineralogy. Composite sample. Index and geologic map, generalized geologic section. 

Physical properties, firing tests. Use: Brick. Possible use: Tile.

386. Spokane County. T. 21 N., R. 45 E.. town of Latab. Owner, L.C. White. 

Sample 60. (Sbedd, 1910, p. 320,321; Glover, 1941, p.231,233.350, 

351.) Clay. Index and geologic map, geologic section.

387. Spokane County. T. 23 N., R. 41 E., near town of Cheney. Analyst, 

W. R. Bloor. Sample 59. ( Sbedd. 1910. p. 194.195.196,307.321; 

Glover, 1941, p.231,233,350,^51.) Clay, light-yellow, fairly plastic. 

Mineralogy. Index and geologic map, geologic section. Physical properties, firing tests, microscopic description. Possible use: Brick, draintile.

388. Spokane County. Sec. 1, T. 23 N., R. 44 E.. Freeman station. Washington 

Brick, Lime, and Sewer Pipe Co. pit. ( Hodge, 1938e, p. 495, 496, 503. 

517, 529. 570, 571. 573. 574. 577.) Kaolin, white, crystalline; 30 ft 

thick; overburden 10-20 ft. Mineralogy. Tonnage estimated. Index 

and geologic maps. General use: Structural terra cotta, sewer pipe, 

pottery, refractories.

389-392. Spokane County. Sec. 1, T. 23 N., R.44E., town of Freeman. Washington 

Brick, Lime.and Sewer Pipe Co. pit. ( Glover, 1941. p.231.233,241.339. 

348,350,351.) Index and geologic map. generalized geologic section.

389. ( Wilson, 1923, p. J55, 68, 69; Hosterman and Livlngston, 1966,

p. 180, 181, m.) Clay, whitej about 45 ft thick. Mineralogy. 

Physical properties, firing tests. Use: Refractories. Possible 

use: Paper filler.

390. Analyst, W. R. Bloor. Sample 57. ( Shedd, 1910, p. 190, 191. 

193, 307, 320, 321.) Clay, deep-reddish-brown; uniform in 

color, texture, and composition; some sand; fairly plastic; 60 ft 

thick, worked to a depth of 30 ft. Mineralogy. Physical properties, firing tests, microscopic description. Use: Brick.

391. Sample 58. ( Shedd, 1910, p. 320. 321.) Kaolin, sandy.

392. Analyst, A. A. Hammer. Sample 65. ( Shedd, 1910, p. 189.

191. 193, 320, 321.) Clay. 75-100 ft thick, 25-30 ft exposed. 

Use: Brick.

393. Spokane County. T. 26 N., R. 42 E., 6 miles north of Spokane.

W. G. Lake farms. Analyst, W. R. Bloor. Sample 55. ( Shedd, 1910, 

p. 172, 173. 174, 307, 320, 321; Glover, 1941, p. 231. 233, 350, 351.) 

Clay, light-cream, fairly plastic, almost free from grit; stratified; fossiliferous; 6-10 ft thick. Mineralogy. Index and geologic map, generalized geologic section. Physical properties, firing tests, microscopic 

description. Possible use: Brick.

394. Spokane County. [T. 26 N., R. 44 E.J.Trent railroad station. Analyst, 

W. R. Bloor. Sample 64. ( Shedd, 1910, p. 197. 198. 307. 320, 321.) 

Clay, almost white, plastic, fine-grained. Physical properties, firing 

tests. Possible use: Stoneware.

395. Spokane County. SWi sec. 27, T. 27 N., R. 44 E. Fuher prospect.

Analyst, Elton Fulmer. Sample 245. (Glover, 1941, p. *31. 233, 258, 

350, 351.) Clay, gray, fine. Index and geologic map, generalized 

geologic section.

396, 397. Stevens County. Miocene, probably correlative of Latah Formation. NEiNWi 

sec. 32, T. 30 N., T. 42 E., about 7 miles by road north of town 

of Clayton. Washington Brick, Lime.and Sewer Pipe Co., A.B. pit. 

( Glover, 1941, p.233,287,350,351.) Clay, nearly white. Index and 

geologic map.

396. Analyst, W.R. Bloor. Sample 75. ( Shedd, 1910, p.207-209.210, 

307.320,321.) Clay, plastic, stratified; 20 ft exposed; overburden 10-12 ft. Physical properties, firing tests, microscopic description. Use: Pottery, stoneware. Possible use: Refractories.

397. Sample 268.

398. Stevens County. Oligocene, GeromeVolcanics. Sec. 36,T. 29N., R. 36 E., 

north side of McCoy Lake. Analysts, P.L.D. Elmore, M.D. Mack. Lab. 

No. 152008. ( Becraft and Weis. 1963, p.3.35-37.) Tuff. Mineralogy, 

calculated norm. Index and geologic maps, geologic section.

399. Stevens County. Pleistocene. [T. 36 N., R. 38 E.J.town of Kettle Falls, 

Rickey Hill. Analyst, W. F. Hillebrand. Record 1428. ( Clarke and 

Hillebrand, 1897, p.301; Glover, 1941, p.295,296,352,353.) General: 

Clay, plastic, well-bedded. Possible use: Common red-firing products.

400. Stevens County. Pleistocene. Sec. 17, T. 39 N., R. 40 E., 2.5 miles 

south of town of North port. Trumbulls farm. Analyst, A.A.Hammer. 

Sample 85. ( Shedd, 1910, p.216,320,321; Shedd, 1913. p.156,157. 

249.pl.21; Weaver, 1920, p.338,343,pl.l.) Clay, very light yellow, 

fine-grained, free from grit, plastic, stratified, uniform throughout; 

30 ft exposed. Index and geologic map*, geologic sections. Former 

use: Brick. Possible use: Portland cement.

Washington Continued

401. Stevens County. Probably Tertiary. NW i sec. 20, T. 31 N., R. 41 E., about 

2 miles east of town of Valley. Iron prospect. Analyst, A. A. Hammer. 

Sample 83. ( Shedd, 1910, p.211,320,321; Weaver, 1920, p.343.344, 

pl.l; Hodge, 1938e, p.495,'496,503,604.605; Glover. 1941, p.293,294, 

350,351.) Clay, white, plastic, fine-grained. Index and geologic 

maps, geologic sections. Possible use: Face brick, terra cotta. 

402-407. Stevens County. Tertiary [implied] . Analyst, A. A. Hammer. ( Shedd, 

1913. p.251.pl.21; Glover, 1941. p.280.j351-353.) Shale. Index map.

402. Sec. 24, T. 34 N.. R. 38 E.. near town of Addy. Sample 32. ( Shedd, 

1913, p. 140,^41.) Shale, dark-gray, fine-grained, laminated.

403. Sees. 19,30, T. 34 N., R. 39 E., 7 miles northeastof Addy. Railroad 

cut. Sample 35. ( Shedd, 1913, p.131.) Shale, light-gray, 

fine-grained, thinly laminated. Possible use: Portland cement.

404. T. 35 N., R. 37 E., about 4.5 miles south of Kettle Falls. Sample 

27. ( Shedd, 1913, p. 144,145.) Shale, medium-gray, finegrained; surface sample, weathered.

405. [T. 37 N.. R. 39 E.],7 miles northeast of town of Colvllle, on 

Clugston Creek. Sample 30. (Shedd, 1913. p. 138, 139.) 

Shale, almost black, compact; average sample. Possible use: 

Portland cement.

406. [T. 38 N., R. 38 E.],l mile east of town of Bossburg. Sample 33. 

( Shedd, 1913. p. 151.^52.) Shale, blue-gray, soft; in thin 

layers. Possible use: Portland cement.

407. [T. 39 N., R. 40 E.],about 1 mile from Northport. Sample 36. 

( Shedd, 1913, p. 158,^59.) Shale, dark-gray, fine-grained, 

thinly laminated; some grit; surface sample, weathered.

408, 409. Stevens County. Sec. 19. T.29 N..R. 42 E.. Clayton. Washington 

Brick, Lime.and Manufacturing Co. ( Shedd, 1910, p.200.202.203. 

205.206,307,320.321; Glover. 1941, p.233.282.264,350.351.) 

Index and geologic map, generalized geologic section.

408. Analyst, W. R. Bloor. Sample 73. Clay, dark-yellow, finegrained, plastic, some grit. Mineralogy. Physical properties, 

firing tests. Use: Face brick, terra cotta.

409. Sample 74. General: Clay, yellow, sandy, plastic; 5-8 ft thick; 

generalized measured section. Use: Brick.

Stevens County. Sec. 30, T. 38 N., R. 39 E.. 7 miles northeast of 

Bossburg. Washington Monumental and Cut Stone Co. Analyst, 

R. W. Thatcher. ( Shedd, 1903, p.52.53,54.134,136,138,141.) Tuff, 

light-gray, fine-to coarse-grained. Mineralogy. Bulk density 2.621. 

Physical properties. Possible use: Dimension stone.

Thurstoo County. Eocene. [T. 16 N.. R. 1 E.],0.5 mile northeast of 

Tenino railroad station. (Roberts, 1902a, p. 7,8,10.) Sandstone, lightgreenish-gray, fine-grained, even texture. Mineralogy, physical 

properties. Use: Concrete aggregate, refractories, dimension stone.

Thurston County. Late Eocene to early Miocene. Lincoln Creek Formation. 

NWiNWi sec. 7, T. 15 N.. R. 3 W.. 4 miles north of town of 

Centralia. Analyst. R. N. Eccher. ( Snavely and others, 1958, p.3, 

41-43,pl.l.) General: Tuffaceous siltstone, brownish-gray, finegrained, massive, fosslliferous. Mineralogy. Index and geologic maps, 

detailed measured section.

413, 414. Whatcom County. Early Pennsylvanian part of Chilliwack Group. NEiSWi , 

NWiSEi, NEi sec. 14, T. 40 N., R. 5 E., Red Mountain. Permanente 

Cement Co., Kendall quarries. Analyst, E. J. Baldwin. ( Danner, 1966, 

p.82,209.210,213,214,218.219.) Shale. Index and geologic maps. 

Use: Cement. Former use: Hydrated lime.

415. Whatcom County. Eocene, Chuckanut Formation. SEi sec. 12, T. 40 N., 

R. 4 E., 3 miles southeast of town of Sumas. Denny-Renton Clay and Coal 

Co. mine. Analyst, H.K. Benson. Sample 90. ( Shedd. 1910, p. 286- 

288.320,321; Glover, 1941, p.306,311,312,352,353.) Clay. Index 

map, detailed measured section. Former use: Terra cotta, refractories.

Whatcom County. Pleistocene. Sec. 34, T. 40 N., R. 5 E., town of 

Kendall. ]. I. Eaton farm. Analyst, A. A. Hammer. Sample 62. 

( Shedd, 1913, p. 209, 214, 215, 250. pi. 21; Glover, 1941, p. 319, 

352; Moen, 1962, p. 85, 86, pi. 1.) Clay; dark blue when wet; dark 

gray when dry; fine grained. Index and geologic maps, geologic 

sections. Possible use: Brick.

Whatcom County. [T. 40 N., R. 5 E.],near Kendall. Analyst,

A. H. Cederberg. Sample 6. ( Landes, 1905, [1906],p.379; Glover, 

1941, p. 352. 353.) Argillite. Possible use: Cement [implied].

Yakima County. Pliocene to Holocene. T. 10 N., R. 22 E., Snipes 

Mountain. Sample 53. ( Hodge, 1938c, p. 3, 22, 159. 160, 162. 163.) 

Gravel and sand; more than 50 ft thick. Mineralogy. Index maps. 

Possible use: Source of silica, ball mill pebbles.

Yakima County. NEi sec. 2, T. 10 N., R. 22 E., northwest of town of 

Sunny side. Analysts, K.A. Johnson, Anthony Centenero. ( Skinner and 

others, 1944, p. 1-4.21.31,32.66.) Diatomite, 4 ft exposed; about 15 

ft thick. Channel sample. Index maps. Physical properties, firing tests. 

Possible general use: Concrete admixture, filtration, heat insulation.

410.

411.

412.

416.

417.

418.

419.
36 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 3. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing uncombined silica and carbonate each less than 75 percent; uncombined silica and carbonate

each greater than clay (Group C), common- and mixed-rock categories

[ Samples of mixed rock category indicated by an asterisk(*) . Chemical analyses arranged by State, quadrangle or county, and stratigraphic position]

Chemical analyses

Alaska

SiOj .

AljO, .

F*»_n~

FeO _______ .

MgO _______ .

CaO ________ .

NajO_ __ _.

KjO .

TiO, _______ .

MnO _______ .

Total __ .

Class _______ .

CaO/MgO ____ .

SiOj _________

AljO, ________

FejO, ________

MgO ________

CaO ________

Na20 ________

H2O _________

Pj05 ________

SO, _________

Total __

Class _ _ _ _

123

50C 50C 50C 

5-11 30-7 52-110

. __ 18.6 26.42 61.3

. __ .24 _____ 4.30

. __ 1.1 14.03 1.05

. __ 37.8 21.94 15.4

. __ 35.8 32.84 _____

___ [96.03 95.23 [84.23

. __ 17,9,70 26,069 51,18,30

4

50C 

154-122

29.4 

4.50 

2.10

2.3 

31.2

1.76

[71.3]

19,19,58

Magnesia n 

calcite

Idaho Continued

14

11C40-10

________ __ __ 42.79

._ _ _ 8.55

_________________ *3.67

__ __ _ _ __ *7.48

*15.67

>

 l 3>0()

)

nc

. _________________ '.04

__________________ T 17.09

[98.54]

_________________ 28,25,36

Calcareous

dolomite

15

11C40-11

20.88 

4.36

*1.78 

*14.98 

*21.66

1.60 .

.20

*.32

T 33.94

[99.72] 

13,12,71

Dolomite

5

50C 

154-126

41.5 

2.93 

1.47

1.9 

27.0

.77

[75.63

35,12,52

Magnesian 

calcite

6

50C 

155-2

29.0 

4.35 

2.05

1.3 

33.1

.94

[70.73

19,18,62

Magnesian 

calcite

Idaho

7

11C 

9-6

29.0 

4.6 

.9 

.65

14.0 

18.7

.20

.06 

.06

'.43 

5 28.2

'99.8 

20,16,59 

Dolomite

8

11C

45-45

18.69 

1.79

10.01 

28.64

2 5.68

S 28.75

'[98.173

16.10,60

Calcareous 

dolomite

9

11C 

35-38

'30.7 

| 5.6

1.6 

33.1

'27.6

[98.63

21,16,59

Magnesian 

calcite

Oregon

16

36C1-6

44.86 

.77 

.60 

None 

.79 

29.72 r - io L - 25

.10 

Trace 

.10 

.10 

None 

S 23.10

M 100.49 

43,4,52

Calcite

17

36C1-9

38.23 

1.74 

1.33

.70 

32.17

.05

B.02 

5 25.71

99.95 

34.8,58

Calcite

18

36C3-31

46.22 

> 5.31

'.49 

*25.56

"1.26

T 20.57

[99.413 

37,15,47

Calcite

*20

36C10-51

63.81 

2.51

12.86 

Trace

7.86

*99.29 

60,7,14

21

36C 15-23

25.21

2 .62 

*39.11

T 31.39

96.33 

25,0.71

Calcite

10

lie

35-39

*40.7 

7.6

3.5 

26.0

*20.5

[98.33

28,22,41

Magnesian 

calcite

11

11C 

35-42

*55.0 

6.3

1.9 

19.0

*16.9

[99.13

44,18,34

Magnesian 

calcite

12

11C

40-12

51.62 

f 5.26

*1.67 

'.21 

*20.18

1 3.00

.19

*.72

T 17.28

[100.133

42,15,38 

Calcite

13

11C

40-7

35.4 

5.2 

.4 

2.9 

11.6 

16.0 

f .80 

1 1.2 

.53 

.14 

.07 

.16

5 24.0

"98.4 

26,16,50 

Dolomite

Washington

23

46C2-8

21.68 

"1.75

.50 

40.61

.045

B33.92

[98.50] 

19,6,74

Calcite

24

46C4-75

27.27 

*1.27

.38 

39.62

.035

U 31.01

[99.583 

25,4,70

Calcite

25

46C4-74

21.24 

f 1.37 

\ .65

3.60 

40.50 

.12

.12

32.25

[99.853 

18,6,71

Magnesian 

calcite

26

46C4-48

21.94 

3.41 

1.06

.63 

40.56

31.47

99.07 

15,13,69

Calcite

'Acid insoluble (chiefly SiOj) .

'Calculated from reported FeCOj, MgCO,, CaCOj, 

Fe, P, MnCO,, and(or) C.

3 Sulfur soluble in aqua regia, calculated as FeSj.

4 Includes ignition loss due to oxidation of FeO.

'cOj.

'Loss on ignition (chiefly COj).

7CO2 , calculated from reported MgCO, and CaCOj.

s Sample 7, total 100 percent in text; sample 13, 

total 98 percent in text.

*V =0.01 percent, Cr=0.04 percent! organic matter =4.56 percent, 

calculated from reported C.

*R*0,.

11 Reported as ignition loss.

BS.

"Sample dried at 110e-112cC! ignition loss l,OOOe-l,100*C.

^Organic matter, LijO =trace, FeSj =none , SrO =none, mere traces 

not determined (Wells, 1937, p. 59} .

Phosphorus, sulfur, or arsenic not detected, NiO=12.25 percent.

Be ____

B _____

Sc ____

v

Cr ____

Ni ____

Co ___

Cu ___

Semiquantitative spectrographic 

analysis

13

___________ 0

__________ .OOX

_______ .ooox

_______ .oox

__________ 0

_______ ooox

Sr___ __ _

Y ____________

Zr ____________

Yb ____________

Pb

13

____ O.OX

____ .OOX

____ .OOX

____ .OX

Spectrochen 

[ The metallic elements not detected in the sp 

Z nO , Ga2O, , GeOj , As^, , Y &s , NbjOj , MoO, ,

CsjO , La^, , NdjO, , SmjO, , EujO, , Gd^, , TbjC 

WOj.RejOy.Os.Ir.Pt.Au.TliOj.PbO.Bi^j.T

23 24

Na2O ____________ 0.16 0.29

K.O_ ___ ____ .25

TiOj _ _____ .045 .07

Cr2O, ________ .014 .00087

nical analyses 

ectrochemical analysis: LijO,BeO,BjO,,ScjOj,CoO, 

AgjO , Ru , Rh , Pd , CdO , InjO, , SnO2 , Sb2O, , BaO , TeO2 , 

), , DyjO, , Hc^O, . Er2O, , Tm2Os , YbjO, , Lu2O3 , HfO2 , TajOg, 

hOj.CeOj.Pr^j.UC^; sample 24, BaO =0.14 percent3

23 24

MnO __ _ _ 0.095 0.11

NiQ. _ ____ _______ .001 .0024

CuO _ _ _ ___ .0026 .0075

SrQ ________________ .011 .0084

ZtOi _ __ _______ _____ .002
ANALYSES OF SAMPLES 37

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Idaho Continued

1. Anchorage quadrangle. Holocene. [Sec. 12, T. 17 N., R. 1 W.j.Knik Arm 

area, Wasilla Lake. Edlund deposit. Analysts, E. A. Nygaard, 

S. M. Berthold. Auger hole 1-GS. ( Moxham and Eckhart, 1956, p. 3, 6, 

8, 13, 14, IS, 18, 19, pi. 1.) Marl; mostly light gray to cream colored 

when wet, white when dry; fine grained; 21 ft thick near center of deposit. 

Sample at depth of 20 ft. Tonnage estimated. Index and geologic maps, 

isopachous map, geologic section, columnar sections. Possible use: 

Portland cement. [For analyses from same drill hole, see sample 2, group 

FI; sample 14, group Fj.]

2. Charley River quadrangle. Precambrian, Tindir Group. [About 20.1-22, 

0.4-0.9],north side of Tatonduk River. Analyst, J. G. Fairchild. 

Record D-31, Sample 30AMtl04. ( Mertie, 1933, p. 350, 369, 372-374. 

378, pi. 7.) Dolomite, siliceous, massive; bed 160 ft thick. Mineralogy. 

Index and geologic maps.

3-6. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S.. 

R. 7 W., unjurveyed],southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. (Rutledge and others, 1953, p. 4, 91, 93, 

96, 98-101, 105, 111, 112. 114, 123, figs. 1, 3, 35-37, 39-41.) Log of 

drill hole. Index and geologic maps, geologic section. Possible use: 

Portland cement ( magnesia content often high so that complex mining and 

thorough blending may be required).

3. Drill hole 4. Limestone, gray, fine-grained; sandy; total depth of 

diamond-drill hole 629 ft. Sample depth 605-610 ft. [For other 

analyses from same drill hole, see samples 48-53, group FI; 

samples 221-336, group FI.]

4, 5. Drill hole 9. Total depth of diamond-drill hole 620 ft. [For other 

analyses from same drill hole, see samples 54-58, group FI; 

samples 337-379, group Fj.]

4. Limestone, black, silicified; depth 570-575 ft.

5. Sandstone, gray, fine-grained; depth 552-555 ft. Limestone, 

gray; contains calcite veinlets and brown clay like residue; 

depth 550-552 ft.

6. Drill hole 11. Limestone, black, fine-grained; total depth of diamond-drill hole 284 ft. Sample depth 275-280 ft. [For other 

analyses from same drill hole, see sample 15, group E; sample 64, 

group FI; samples 649-702, group Fj.]

Idaho

13. Analysts, H. F. Phillips, P. L. D. Hmore, K. E. White; spectrographic analyst, J. D. Fletcher. Lab. No. 54-419SC. ( Ross, 

1963, p. 28, 48, 50, 57.) Dolomite, argillaceous, gray, dense. 

Differential thermal analysis curve. Triangular diagram.

14. Analyst, J. G. Fairchild. Specimen 89. Quartzite, dolomitic, pitted.

15. Shoshone County. Age, reference, maps,and sections as in samples 13, 14. 

Striped Peak Formation. Sec. 7, T. 47 N., R. 4 E., Striped Peak. 

Analyst, J. G. Fairchild. Specimen 103. Dolomite, arenaceous.

Oregon

16,17. Baker County. Probably pre- Carboniferous, limestone inter bedded in Burnt 

River Schist. Sec. 11. T. 12 S., R. 43 E., 3.75 miles south of town of 

Durkee. Nelson deposit. ( Hodge. 1938d, p. 154, 199, 236-238, 240.) 

General: Limestone, interbedded with chert and argillite; beds 600-700 ft 

thick. Index and geologic maps.

16. Analyst, J. G. Fairchild; collectors, R. W. Richards, B. N. Moore.

Record D-63. (Moore, 1937, p.141,142,pi. 1; Wells. 1937, p.58, 

59.) Limestone, nearly black, crystalline. Bulk density 2.68. 

Tonnage estimated. Former use: Lime. Possible use: Cement.

17. USED sample 18.

18. Clackamas County. [T. 5 S., R. 1 E.],about 1 mile from town of Marquam. 

Analyst, R..S. Edwards. ( Eckel, 1913, p. 308. JJ09.) Limestone. Possible 

use: Cement.

*20. Douglas County. Mostly sec. 17, T. 30 S., R. 6 W., about 3 miles west of 

Riddle, Piney Mountain. Oregon Nickel Mines Co. ( Austin, 1894, 1895, 

1896, p. 174, 175, 178, 180, 181,^90-193.) Genthite, green veinlets. 

Bulk density 2.20-2.58. Mineralogy, thin-section description. Index and 

geologic maps. *Analysis shows 12.2 percent NiO; suggests 6.2 percent 

more MgO than required for carbonate.

21. Jackson County. Devonian. Sec. 16, T. 36 S., R. 3 W., 0.25 mile west

of town of Gold Hill. Analyst, P. H. Bates. ( Darton, 1909, p. J29; Diller, 

1914, p. 10, 11, 15, j.6, pi. 4; WincheU, 1914, p. 14, 15, _58, 158, 159, 

fig. 1.) Limestone, 50-200 ft thick. Index and geologic maps. Possible 

use: Portland cement [ implied].

7. Bonner County. Precambrian, Striped Peak Formation. T. 54 N., R. 3 E., 

between Dry Creek and main south branch of Dry Creek. Analysts, 

P.L.D. Qmore, S.D. Botts, I.H. Barlow, Gillison Chloe. Lab. No. 

155263. ( Harrison and Jobin, 1963, p. K3, K15, K36, K37, pi. 1.) 

Dolomite, blue-gray, silty. Index and geologic maps, geologic sections. 

Possible use: Cement.

8. Caribou County. Permian, Pheuphoria Formation, Meade Peak Phosphatic 

Shale Member. [Sees. 2, 11, T. 8 S., R. 42 E.] Conda mine. Sample 

SI. ( Emigh, 1958, p. 27. j!8, 30, fig. 1.) General: When fresh, phosphatic dolomitic shale, black, fine-grained, dense; when weathered, shale, 

brown, soft; fossiliferous; 17-24 ft thick. Mineralogy, thin-section description. Index map.

9-11. Nez Perce County. Late Triassic, Hurwal Formation. (Savage, 1965, p. 18a, 

18b, 18c, 19, 20, pi. 1, fig. 1.) Limy shale. Tonnage estimated. Index 

and geologic maps, geologic section. Possible use: Portland cement.

9. [Probably] sec. 14, T. 32 N., R. 5 W., 0.5 mile up Billy Creek. 

Analyst, George Hsu. Sample 3Gh.

10. [Probably] sec. 23, T. 32 N., R. 5 W., Camp Creek area. Analyst, 

Huey-rong Hsi. Sample 3Ah.

11. SEi sec. 36, T. 33 N., R. 5 W., near mouth of Madden Creek. 

Analyst, George Hsu. Sample 3Eh.

12. Shoshone County. Precambrian, Revett Quartzite. [NW? T. 48 N., R. 6 E.], 

Glidden Lakes, Miltary Gulch. Analyst, J. G. Fairchild. Specimen 25. 

( Hobbs and others, 1965, p. 5, 26, 23, 38, pi. 6.) Quartzite. Mineralogy. 

Index and geologic maps.

13, 14. Shoshone County. Precambrian, Wallace Formation. Probably sec. 12 or 13, 

T. 47 N., R. 5 E., Stevens Lake. ( Hobbs and others, 1965, p. 5, 23-27, 

^8. pis. 5, 6.) Mineralogy. Index and geologic maps, geologic sections.

Washington

23. Asotin County. Probably Late Triassic. SWj sec. 19, T. 7 N., R. 47 E., 

about 25 miles south of town of Clarkston, Lime Hill. Ideal Cement Co. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample A-6. ( Mills, 1962, p. 12, 13, 239-243, 244, 

252, 264, pi. 1.) General: Limestone, gray to light-gray, cryptocrystalline to fine-grained; beds 1/16 in.-4 ft thick. Total thickness of limestone 

in area 3,143 ft. Most units siliceous and (or) slightly argillaceous. 

Chip sample of outcrop represents 50 ft. Tonnage estimated. Index and 

geologic maps. Possible use: Portland cement.

24, 25. Chelan County. W£ sec. 22, T. 26 N., R. 19 E., about 16 miles by road 

from town of Entiat. Indian Creek deposit. ( Danner, 1966, p.16,19,82, 

398,406,407,447,455.) Limestone, white, crystalline. Index and geologic maps, geologic sections, measured section. Possible use: Decorative 

stone.

24. Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample Cn 6-2. Chip sample taken across 12 ft.

25. Sample taken from float boulders.

26. Chelan County. NWj sec. 14, T. 27 N.. R. 15 E. Rainy Creek deposit.

Drill hole 55. (Danner, 1966, p.82,387,393-396,397.) Limestone, white 

to gray, medium to coarsely crystalline. Sample depth 91.8-142.5 ft. 

Mineralogy. Tonnage estimated. Index and geologic maps. Possible use: 

Portland cement. [For other analyses from same drill hole, see samples 

64-68, group E; samples 123-126, group FI.]
38 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 3. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing uncombined silica and carbonate each less than 75 percent; uncombined silica 

and carbonate each greater than clay (Group C). common- and mixed-rock categories Continued

Chemical analyses Continued 

__________________________Washington Continued_____________________________________________

27 28 29 30 31 32 33 34 35 36 37 38

46C10-15 46C10-16 46C10-11 46C10-12 46C10-13 46C10-14 46C24-7 46C24-47 46C24-265 46C24-269 46C24-270 46C24-279

SiO, .

R.O, .

Mga .

CaO _____________ .

P_0, .

Ignition loss _, _ __.

. _____ 25.50

. _____ 1.35

______ 5.57

. _____ 39.69

______ .071

. _____ "28.09

35.92

1.35

2.56

33.71

.060

'26.30

36.05

3.87

1.58

31.33

'26.77

37.83

2.20

1.08

32.06

"26.61

39.45

3.53

2.00

29.43

.330

"25.48

28.99

.98

.76

37.83

.060

"31.12

25.86

'4.70

*3.63

34.66

4 31.15

54.90

1 9.34

*7.71

11.00

417.05

20.96

'3.56

*14.98

24.54

4 35.96

23.82

*3.99

*15.08

22.76

4 34.35

20.45

*3.90

*15.17

24.60

4 35.88

20.90

*4.39

*15.04

24.24

4 35.43

Total ______________ [100.27] [99.90] [99.77] [99.93] [100.22] [99.74] 100.00 100.00 100.00 100.00 100.00 100.00 

Class ___________________ 23,4,61 34,4,58 30,11,58 34,6,59 34,10,55 27,3,69 18,14,67 39,27,31 15,10,74 17,12,70 14,11,74 14,13,72

CaO/MgO 0

 Ma8"e.sian Ma8"e$ian Calcite **&"*** Calcite 

calcite calcite calctte calcite calcite

Dolomite Dolomite Dolomite Dolomite

Washington Continued

SiO, _ ________

R.O, 

MgO. _____________

CaQ ______________

P-0, 

Total ________

39

46C40-6

______ 28.08

______ J 4.34

______ *13.12

______ 22.52

______ 4 31.94

______ 100.00

40

46C40-14

21.74

*3.24

*15.37

24.04

4 35.61

100.00

41

46C40-48

1 3.46

4 35.85

100.00

42

46C40-49

100.00

43

46C40-59

'5.26

4 26.25

100.00

44

46C40-60

*5.38

4 30.94

100.00

45

46C40-62

'6.09

16.74

4 24.20

100.00

46

46C40-68

1 4.02

23.88

4 34.92

100.00

47

46C40-69

22.42

'3.24

*15.02

24.04

4 35.28

100.00

48

46C40-90

23.18

'3.76

*13.77

24.78

4 34.51

100.00

49

46C40-168

23.86

2.62

1.56

39.68

.082

"31.91

[99.71]

50

46C40-169

27.29

3.23

1.08

37.80

.116

'30.42

[99.94]

Class__________________ 21.13.65 16,9,73 15,10,74 25,11,63 30,15.53 20,16,62 33,18,48 16.12,71 17,9,73 17,11,71 19,8,70 22,9,67

_ _... _ Calcareous , . _ , .. Calcareous , , , , , Calcareous Magnesian .

CaO/MgQ______________ . , , Dolomite Dolomite Dolomite . Dolomite Dolomite Dolomite Dolomite ... . . Calcite

e dolomite dolomite dolomite calcite

Washington Continued

SiOj .

Al-D.

Fe-0, .

Mga .

CaO ___________ .

P_0, .

Total ______ .

51

46C

40-170

_______ 39.27

 I S g 2?

_______ 29.71

_______ .064

_______ "23.36

 [99.67]

52

46C 

40-186

19.83

*3.93

41.25

.098

"32.98

[99.59]

53

46C 

40-171

32.30

*6.29

34.40

"26.09

[100.071

54 55

46C 46C 

40-172 28-51

29.40 26.04

, ( .36

5 ' 48 1 82

30.53 40.56

*28.72 32.08

1 [99.551 [99.88]

56

46C

28-67

45.45

| *3.00

28.08

.054

*23.07

1 [99.86]

57

46C 

28-75

30.10

'1.92

.34

37.52

.028

"29.95

[99.86]

58

46C

28-42

45.07

*1.08

.27

30.00

.032

'23.74

[100.19]

59

46C

28-130

43.06

§ 1.59

.24

30.65

.040

"24.39

[99.97]

60

46C 

28-131

44.74

*2.18

.62

28.57

.040

"23.01

[99.16]

61

46C 

28-129

41.75

S 2.57

.47

30.73

.082

"24.58

[ 100 . 18 ]

62

46C 

28-125

28.29

*3.64

.59

36.80

.059

"30.24

[99.62]

Class___________________ 29,18,49 13,11,72 22,18,55 20,16,60 24,3,72 40,9,51 27,6,67 43,3,53 40,5.54 41,6,51 37,8,54 22,11,66

CaO/MgO Calcite Calcite Calcite Ma8nesian Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite 

calcite

'iron and alumina.

*By difference.

"Sample dried at 110e-112°C; ignition lost l,OOOe-1.100°C.

4 950e-l,000°C;also called CO..

Specuochemical analyse* 

[ The metallic elements not detected in the spectrochemical analysis: LitO,BeO,B-Oj,Sc-Oj,CcO,ZnO.Ga-Ot,Y-Oj,Nb-Os ,MoOs ,Ru 

La-O, , CeOj , Pr-O, , NdjO, , Sm-O, ,Eu-O, .GdjO, , Tb-O, , Dy-O, , Ho-O, ,Er-O, , Tm,O, , YbjO, , Lu-O» , HfDj ,Ta-Os , WO, , Re-Oj.Os.Ir.Pt.Au 

sample 56 , PbO = 0 . 038 percent]

Na-O _____ .

K.O. .

TiOj _____ .

V.OS .

Cr-0, .

MnO ______ .

NiQ _______ .

CuCL____ __ .

SrO _______ .

ZrOj _____ .

AgjO _____ .

BaO _____ .

27

.____ 0.21

. _ _ .18

_____ .0053

____ .0032

. ___ .16

. ___ .0022

. ___ .032

_____ .002

28

0.78 

1.95 

.095 

.011 

.0014 

.14

.002 

.0069 

.025

29

0.14 

.90 

.14 

.068 

.0048 

.082

.007 

.027 

.038 

.0039

.25

30

0.05

.12

.038 

.0022 

.03

.004 

.016 

.028 

.002 

.0014 

.18

31

0.062 

.034 

.0028 

.038

.004 

.012 

.034 

.0033

32

0.082

.084 

.0035 

.00093 

.035

.0028 

.0046 

.046

.15

49

0.30

.14 

.056 

.0057 

.053

.005 

.011 

.07 

.011

50

0.23

.096 

.018 

.0044 

.10

.0044 

.012 

.083 

.0072

51

0.17 

.25 

.16 

.0078 

.0043 

.21

.0048 

.029 

.021 

.03

,Rh.Pd,CdO,In-O8 ,SnOj,SbjO.,TeO.,CsjO, 

, T1.O, , PbO , Bi-O, , ThOj , GeO, , As-O» , UO-;

52

0.06

.068 

.0059 

.0039 

.18

.0036 

.016 

.014 

.026

53

0.29 

.25 

.17 

.013 

.0055 

.20

.0056 

.018 

.02 

.032 

.0015

54

0.075

.0012 

.049

.001 

.014 

.013 

.012

56

0.06

.084 

.003 

.0019 

.09

.0026 

.014 

.013

.0015
ANALYSES OF SAMPLES 39

Spectrochemical analyses Continued

NajO ________

KtO ________

TiOj _______

V20S ________

Cr20, _______

MnO ________

57

____ 0.25

____ .053

____ .005

____ .0017

____ .045

58

0.019

.50

59

0.075

.025

.15

60

0.034

.003

.0062

.18

61

0.082

.047

.0010

.44

62

1.00

.14

.30

NiO ___

CuO __

SrO ___

ZrOj __

A&0 

BaO __

57

_ 0.0038

.0099

.011

58

0.0022

.016

.0092

59

0.002

.013

.015

60

0.004

.0075

.014

61

0.0034

.013

.0098

.003

62

0.002

.017

.024

.002

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

27-32. Ferry County. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 186-1JS8, 207, 209, 

210,^44, 252, 253, 264, pi. 1.) Chip sample of outcrop. Index and 

geologic maps. Possible use: None, rock impure.

27, 28. Triassic. SEi NEi sec. 18, T. 40 N., R. 34 E., about 2.5 miles 

southwest of town of Danville. Samples F-4, F-6. Limestone, 

white to light-gray, medium-grained.

29-32. Pre-Permian or late Paleozoic. NEiSWi sec. 9, T. 35 N.,

R. 32 E., Sheep Mountain area. Samples F-24 to F-26, F-29. 

Limestone, dark-gray to black, fine- to medium-grained, thinbedded.

33-48. Okanogan County. Triassic. Near town of Riverside. ( Bennett, 1944, p. 6- 

9, 11, 14-17, 22-24, pis. 1, 4, 7; Bennett, 1945, p. 6, 7, ^2, ^3.) Fresh 

sample from outcrop, fragments taken every 5 ft, usually for a length of 

50ft. Tonnage estimated. Index and geologic maps. Possible use: 

General uses of dolomite; refractories, crushed stone.

33. NWiSEi sec. 8, T. 34 N., R. 26 E., about 4.5 miles southwest 

of Riverside. Owner, Beechenow. Sample 448a. [Dolomitic 

limestone.] Deposit: Dolomitic marble, white; contains chert 

veins and limy dolomite.

34. SEi NWi sec. 10, T. 35 N., R. 26 E., about 4 miles northwest of 

Riverside. Owner, S. J. Booher. Sample 397. Deposit: Dolomite, dark-gray, dense.

35-39. T. 35 N., R. 26 E., about 2.5 miles northwest of Riverside. 

Deposit: Dolomite, gray, massive; some siliceous beds.

35-38. NEi NEi sec. 22. Owner, R. E. Smith. Samples 

165, 169, 170, 179.

39. NWi NEi sec. 22. Owner, Mrs. W. V. West. Sample 

162.

40. SEi NEi sec. 22, 2 miles northwest of Riverside. Sample 133. 

Deposit: Dolomite, gray, thick-bedded to massive; contains 

quartz veinlets.

41-48. T. 35 N., R. 26 E., about 1.25 miles northwest of Riverside. 

Deposit: Dolomite, light-gray to brownish-gray.

41, 42. NEiSEi sec. 22. Owner, W. R. Forbes. Samples 

125, 126.

43-47. NWiSWi sec. 23. Samples 110, 115, 117, 123, 124.

48. SWiSWi sec. 23. Owners, Emmett and Omar Smith. 

Sample 104.

49. Okanogan County. SEi sec. 1, T. 35 N., R. 25 E., southeast side of 

Dunn Mountain. Scholz property. Analyst, under supervision of Mark 

Adams; spectrochemical analyst, C. E. Harvey. Sample O-50. (Mills, 

1962, p. 12, 13. 232, 233, 234-236, 245, 246. 255, 264, pi. 1.) 

Limestone, white to light-gray, medium-grained. Chip sample of three 

outcrops, represents 52 ft. Tonnage estimated. Index and geologic maps. 

Possible use: Portland cement.

50. County, analysts, reference, and maps as in sample 49. SW«SWi sec. 7,

T. 35 N., R. 26 E., Dunn Mountain area. McCain property. Sample O-57. 

Limestone, dark-gray, fine- to medium-grained, siliceous. Chip sample 

of outcrop, represents 43 ft. Possible use: None, rock impure.

Washington Continued

51-54. Okanogan County. Sec. 26, T. 35 N., R. 26 E., 1 mile northwest of

Riverside. Brown property. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. ( Mills. 1962, p. 12, 13. 236- 

238. 246. 256, 264, pi. 1.) Limestone, gray, fine-grained, siliceous, 

argillaceous, bedded. Chip sample. Index and geologic maps. Possible 

use: None, rock impure.

51. NWi NEi sec. 26. Sample O-73 represents 58 ft.

52. NEi NWi sec. 26. Sample O-71 represents 50 ft.

53. NEiNWi sec. 26. Sample O-72 represents 75 ft.

54. NEiNWi sec. 26. Sample O-74 represents 70 ft.

55. San Juan County. Early Pennsylvanian or Late Mississippian. Nj SEi sec. 20, 

T. 37 N., R. 2 W., Orcas Island. Englehartson deposit. ( Danner, 1966, 

p. 82, 141, 161, 162.) Limestone, light-gray, organoclastic to crystalline; contains jasperoid. Thin-section description. Tonnage estimated. 

Index and geologic maps.

56. San Jnan County. Early Pennsylvanian. SEiSWi sec. 16, T. 37N., R. 1W., 

Orcas Island. Mount Constitution deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Sample SI 77-4. 

( Danner, 1966, p. 16, 19, 82, 141, 198, 199. 450. 460.) Limestone, 

dark-gray, dense to fragmental, fossiliferous; weathers buff; contains 

interbedded argillaceous material. Chipsample, single specimen. Tonnage 

estimated. Index and geologic maps. Possible use: None, rock impure.

57. County, age, analysts, maps, and use as in sample 56. NEiNEi sec. 19, 

T. 37 N., R. 1 W., Orcas Island, about 4 miles from town of East Sound. 

Wright deposit. Sample SI 80-1. (Danner, 1966, p. 16, 19, 82, 141, 

203, 450, 461.) Limestone, argillaceous, dark-gray-buff, dense, fossiliferous; weathers brownish buff. Thin-section description. Chipsample 

taken across 80 ft.

58. County, analysts, maps, and use as in sample 56. Early Permian. SEi

sec. 15, T. 37 N., R. 2 W., Orcas Island, about 0.75 mile west of town 

of East Sound. Double HU1 deposit. Sample SJ 17-1. ( Danner, 1966, 

p. 16, 19, 82, 141, 151-^53, 448. 457.) Limestone, largely replaced by 

jasperoid. Chip sample taken across 250 ft.

59. County, analysts, maps, and use as in-sample 56. Permian. NEi sec.'18, 

T. 36 N., R. 3 W., San Juan Island. Limestone Point quarry, abandoned. 

Sample SJ 61-1. (Danner, 1966, p. 16, 19, 82, 94, 119,^20, 121, 449, 

459.) Limestone, gray, bedded, fossiliferous; interbedded with ribbon 

chert; beds range from 1 in. to several ft thick. Thin-section description. 

Chip sample taken across 100 ft. Former use: Lime.

60-62. San Juan County. San Juan Island. Analyst, under supervision of Mark Adams; 

spectrochemical analyst. C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 

94, _95, 100, 101. 121, 122, 123, 447. 449. 456, 459.) Chip sample. 

Index and geologic maps. Possible use: None, deposit small.

60. Permian!?). SEi NEi sec. 29, T. 36 N., R. 3 W. Bell quarry, 

abandoned. Sample SJ 2-1. Limestone, light-blue-gray, finely 

crystalline; contains calcite veinlets, chert; taken across 15 ft. 

Thin-section description. Tonnage estimated.

61. Permian:?). SEiSEi sec. 19, T. 36 N., R. 4 W. Rouleau deposit. 

Sample SJ 54-1. Limestone, light-gray; contains calcite veinlets 

and argillaceous material; taken across 20 ft. Tonnage estimated.

62. Late Triassic, Haro Formation. NEi sec. 14. NWi sec. 13, T. 36 N.. 

R. 4 W. Davison Head deposit, Roche Harbor Lime and Cement Co. 

Sample-SJ 50-1. Limestone, argillaceous, fossiliferous; taken across 

38 ft. Detailed measured section.
40 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 3. Analyses of samples from Alaska, Idaho. Oregon, and Washington.containing uncombined silica and carbonate each less than 75 percent; uncombined silica and

carbonate each greater than clay (Group C), common- and mixed-rock categories Continued

Chemical analyses Continued

W ashington C ontinued

SiOj __ _ . Al,0, ,

Fe20, ______

MgO_ _____________

CaO ______________

CaO/MgO __________

63

46C28-83

______ 44.12

\ ,

j l - S9

_______ .27

______ 29.80

______ .027

______ *23.75

______ s[99.86]

______ 41,6,53

64

46C28-119

68.03 

'4.51

.77 

14.10 

.205 

*11.33

4 [98.94] 

60,13,23

65

46C28-87

32.87 

'6. 51

8.60 

24.21 

.265 

*28.26

[100.72] 

22,19,57

Calcareous 

dolomite

66 67

46C29-91 46C29-90

32.92 25.05 

'4.62 1 3.44

1.29 .55 

33.24 40.11 

.018 .015 

*28.15 *31.30

[100.24] [100.46] 

25,14,61 19,10,69

Magnesian _ , . 6, Calcite calcite

68

46C29-76

23.22 

J 2.24

.57 

41.73 

.060 

*32.69

'[100.51] 

19,7,73

Calcite

69

46C29-11

39.9

{ :!

.6 

32.0

25.4

[99.4] 

38,4,57

Calcite

70

46C29-121

31.07

1 '12 

J 

.46 

37.63 

.066 

*29.82

[100.34] 

29,4,67

Calcite

71

46C29-111

30.71 

'1.53

3.03 

35.03 

.021 

2 30.23

[100.55] 

28,4,67

Magnesian 

calcite

72 73

46C29-115 46C29-113

36.43 

h.55

.49 

33.82 

.049 

*27.22

[99.56] 

34,5,61

Calcite

63.89 

'6.41

.64 

14.91 

.200 

*13.33

[99.38] 

53,19,26

74

46C31-71

28.68 

'3.36

.94 

36.46 

.041 

*30.17

[99.65] 

23,10,66

Calcite

Washington Continued

SiOj _____________

Al_0, ____________

FejO, ____________

MgQ. _____________

CaO ______________

Na20 __ ___ _

KjO _____________

D r\

Total ________

Class ___ __________

CaO/MgO_ ____ _ __ .

75

46C31-89

______ 62.00

______ 1.23

______ .66

Trace

______ 20.00

flft

______ 15.38

__ _ [99.37]

______ 59,5,34

76

46C31-107

22.32 

1.41 

.87 

1.42 

43.30

30.85

[100.17] 

19,6,68

Calcite

77

46C31-97

34.24 

1 1 7.33

23.22 

4.64

.006 

! 30.51

[99.95] 

22.21,56

Dolomitic 

magnesite

78 79

46C31-20 46C31-100

24.3 54.97

} '« { ':_

_____ .100

*32.2 *16.50

[99.2] [99.49] 

22,5,72 43,22,33

Calcite Ma8"C'ian 

calcite

80

46C31-99

50.56

1.15 

21.50

.096

*18.46

[99.88] 

37,24,37

Magnesian 

calcite

81

46C31-98

60.65 

'6.81

1.29 

16.18

.068

*14.92

a[99.92] 

49.20,30

82

46C33-8

*21.1 

2.5

.6 

41.7

U 32.5

[98.4] 

17,7,72

Calcite

83

46C41-59

*19.4 

3.9

*24.2 

16.6

"35.9

100.0 

13.11,71

Magnesian 

dolomite

84

46C41-77

'22.8 

3.9

*22.6 

17.4

"33.3

100.0 

16,11,66

Magnesian 

dolomite

85

46C41-287

'31.2 

3.7

*20.6 

14.6

"29.9

100.0 

25,11,59

Magnesian 

dolomite

86

46C43-130

T 44.37 

'1.50

*23.43 

10.54

"20.16

100.00 

42,4,40

Dolomitic 

magnesite

Washington Continued

MgO'_ _ __ ____

CaO ___________ .

Total _________

Class .

CaO/MgQ. .

87

46C43-131

38.11 

1.14 

22.39 

11.93 

26.43

100.00 

36,3,53

Magnesian 

dolomite

88

46C43-132

48.43 

2.27 

17.72 

14.65 

16.93

100.00 

45,7,34

Magnesian 

dolomite

*89 *90

46C43-53 46C43-55

35.08 32.54 

.73 .80 

18.65 17.90 

22.42 24.22 

23.12 24.54

100.00 100.00 

34,2,48 31,2,51

Dolomite Dolomite

91

46C43-58

22.93 

2.37 

16.88 

22.50 

35.32

100.00 

19.7,73

Dolomite

92

46C43-60

32.20 

2.72 

14.85 

19.87 

30.36

100.00 

28,8.62

Dolomite

*93

46C43-67

43.09 

.73 

35.53 

3.48 

17.17

100.00 

42.2,33

Dolomitic 

magnesite

*94

46C33-122

20.15 

.80 

36.20 

15.21 

27.64

100.00 

19,2,55

Dolomitic 

magnesite

95

46C43-68

36.32 

1.20 

19.01 

19.75 

23.72

100.00 

34,4,48

Magnesian 

dolomite

*96

46C33-123

20.20 

1.93 

28.38 

19.67 

29.82

100.00 

17,6,60

Magnesian 

dolomite

97

46C43-74

28.00 

.72 

36.42 

3.47 

31.39

100.00 

27,2,61

Dolomitic 

magnesite

'RgO,.

'Sample dried at 110°-112°C; ignition loss 1.000e-l,100«C.

'With samples 300,301 group F! and sample SJ 76-4, not recorded; 

NaiO=160ppm, KzO=420ppm, TiO^60ppm, S=240ppm.

*With samples 844,845 group F t, NazO=330ppm, KjO=565 ppm, 

TiO2 = 1,250 ppm, S = 143 ppm.

'With sample 330 group FI and sample 905 group Fj, 

Na zO=185ppm, KzO=490ppm, TiO2=250ppm ,S=325ppm.

'insoluble, mainly SiO2 .

7 Insoluble, includes silica and insoluble silicates.

'iron and alumina.

*By difference.

"At 950«C.

"Mainly CO2 .

tt NajO=310ppm, KjO=625ppm. TiOj = 800ppm, S = 915ppm.

Spectrochemical analyses

TeO2,Cs2O,La2O3,CeO2,Pr2Os ,NdzOs ,SmzO3,EuzO3,Gd2O3,Tb2Os ,DyzO3,Ho2Os,Er2O3,TmzO3 ,Yb2O3,LuzOs ,HfO2,TazO6 ,

Na»0 ______________ .

KjQ _ .

TiOj __ _ .

V20, .

CrjO, .

MnO _____________ .

NiQ. _ __ _

CoO ______________ .

CuO ______________ .

SrO ____ _________ .

ZrOj _____________ .

AgjO .

63

____________ 0.035

____________ .0016

____________ .062

____________ .0024

____________ .010

.__ ___ ____ .017

64

0.98

.052

.0067

.097

.024

.022

65

0.059

.0021

.55

.023

66

0.53

.08

.0012

.12

.0070

.021

.0005

67

1.42

.18

.013

.0014

.092

.012

.0098

.00071

68

0.05

.047

.0056

.0013

.024

.008

.012

.0002

WO3 ,ReiO7 .Os.Ir,Pt,Au

70

0.05

.022

.0045

.042

.002

.0039

.024

71

0.12

.037

.0051

.04

.0016

.0070

.013

,TlzO,,PbO,

72

0.22

.041

.003

.03

.001

.0043

.025

81203 ,ThO2

73

2.9

1.88

.65

.033

.0015

.14

.0028

.0024

.024

.016

.011

.0015

.uo.]'

74

0.57

.096

.0013

.13

.0040

.0098
ANALYSES OF SAMPLES 41

Spectrochemical analyses Continued

NazO ____ __ 

K2 0 ________________

TiOj _______________

VZ06 _______________

CrjO, _______________

MnO ________________

77

____________ 0*01

___________ .12

____________ .18

79

1.47

.16

.0078

.0051

.12

80

2.28

1.73

.84

.029

.0050

.19

81

2.28

1.13

.32

.012

.0022

.17

CuO ___________

SrO ___________

ZrO, ___________

Ag,0 ___________

77

________ 0.04

________ .0077

________ .018

________ .0048

________ .008

________ .00099

79

0.003

.001

.019

.012

.0063

.00066

80

0.0048

.0022

.028

.014

.011

.0015

81

0.0026

.0013

.016

.0063

.0081

.0014

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

63.

64.

65.

69.

Washington Continued

San Juan County. NEi sec. 17, T. 37 N., R. 1 W., Orcas Island. Buck 

Mountain deposit. Sample SJ 76-3. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C.E. Harvey. (Danner, 1966, p.16, 

19,82,141,197,298_.45p_,460.) Limestone, white to buff, finely crystalline. 

Chip sample taken across 65 ft. Tonnage estimated. Index and geologic 

maps. Possible use: Cement.

County, analysts, and maps as in sample 63. NEi sec. 25, T. 37 N.,

R. 2 W., Orcas Island. Langdon deposit. Sample SJ 67-3. (Danner, 1966, 

p. 16,19,82,190,19.1,45p_,460.) Limestone, gray, crystalline. Chip 

sample taken across 20 ft. Former use: Lime. Possible use: None, 

deposit small.

County, analysts, and maps as in sample 63. NWiSWi sec. 29, T. 37 N., 

R. 1 W. , Orcas Island. Moran State Park deposit. Sample SJ 92-1. (Danner, 

1966, p. 16,19,82,141.UiO.450,461.) Limestone, buff, sugary to dense; 

weathers orange and rusty brown; poorly bedded layers 1-2 in. thick. 

Chip sample taken across 80 ft. Possible use: None, deposit small and 

impure.

66,67. Skagit County. Devonian(?) part of Chilliwack Group. T. 35 N.. R. 10 E. 

Meiklejohn and Brown Co., Portland claim. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C.E. Harvey. Samples St 17-5, 

St 18-3. (Danner, 1966. p. 16.19.82.269.271,283,284.287,288.451.463.) 

Limestone, thin-bedded, fossiliferous; contains interbedded shales. Chip 

sample taken across 150 ft. Tonnage estimated. Index and geologic maps.

66. SEi sec. 9.

67. NEi sec. 16.

68. County, analysts, and maps as in samples 66,67. Early Pennsylvanian part of 

Chilliwack Group. Ej sec. 1, T. 36 N., R. 7 E., about 17 miles from town 

of Concrete. Washington Monument Co. Sample St 22-2. (Danner, 1966, 

p. 16,19,82,259,260,264,265.268_,451,463.) Limestone, massive to thinbedded; oolitic, organoclastic and crystalline. Chip sample, composite. 

Possible use: Portland cement.

Skagit County. Devonian to Early Permian, Chilliwack Group. NEiSEi 

sec. 19, T. 35 N., R. 10 E., on Suiter Creek, Sauk Mountain between 

towns of Rockport and Maiblemount. Analysts, K.A. Johnson, 

Anthony Centenero. (Popoff, 1948. p. 2,6,l£,fig. 1; Danner, 1966, p. 82, 

269,290,295-297.) Limestone, black, fine-grained; carbonaceous, siliceous. Thin-section description. Index and geologic maps. Possible use: 

Cement.

Skagit County. Devonian to Early Permian, Chilliwack Group. NWi sec. 20, 

T. 35 N., R. 10 E. Sutter Creek deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C.E. Harvey. Sample St 11-1. 

(Danner, 1966, p. 16.19,82,269.290,295_-298,451.462.) Limestone, darkgray to gray, massive to well-bedded to laminated, dense to finely crystalline; contains calcite veinlets, interbeds of black shale. Thin-section 

description. Chip sample taken across 50 ft. Index and geologic maps. 

Possible use: Cement.

County, age, group, analysts, reference, and maps as in sample 70. S{ sec. 21, 

T. 35 N., R. 10 E., 4 miles east of town of Rockport. Rocky Creek deposit, 

railroad cut. Limestone, blue-gray, dense. Chip sample. Possible use: 

None, impure rock.

71. Sample St 12-2. Limestone, about 6 ft thick; taken across 40 ft.

72. Sample St 12-4. Limestone, thin-bedded; maximum thickness 5 ft. 

Composite sample.

County and analysts as in sample 70. SWi NEi sec. 30, T. 34 N., R. 10 E. 

Sauk River Bridge deposit, roadcut. Sample St 25-2. (Danner, 1966, p. 16, 

19,82.303,451,463.) Shale, calcareous. Chip sample taken across 100 ft. 

Index and geologic map.

Analysts and maps as in sample 70. Snohomish County. Probably Early 

Pennsylvanian. NWi and SWi sec. 18, T. 31 N., R. HE., southeast of 

town of Darrington. Whitechuck River deposit .Sample Sh 3-1. (Danner, 1966, 

p. 16,19,82,333,337,338,339,452,464.) Limestone,dark-blue-gray, oolitic 

and finely crystalline; weathers light blue gray; interbedded with shale. Chip 

sample taken across 13 ft. Measured section. Possible use: None, deposit 

small.

Snohomish County. Possibly Jurassic or Early Cretaceous. SEiSWi sec. 11, 

T. 27N., R. 8E., about 2 miles south of town of Startup. Sultan deposit. 

Analyst, T. Baldwin. (Danner, 1966, p. 82.343-345,346.) Chert, gray, 

fossiliferous; thin beds 0.5-12 in. thick interbedded with limestone.

W ashington Continued

70.

71, 72.

75.

Hand specimen. Tonnage estimated. Index and geologic maps.

76. Snohomish County. Jurassic and Cretaceous. NEi sec. 21, T. 27 N., 

R. 9 E., near town of Gold Bar. Proctor Creek deposit. Drill hole 3. 

( Danner, 1966, p. 82, 353-356, 358.) Limestone, black to gray; weathers 

light gray; contains calcite veinlets. Sample length 29 ft. Tonnage 

estimated. Index and geologic maps. Log of drill hole. Possible use: 

Agricultural, decorative stone; deposit small. [For other analyses from same 

drill hole, see samples 333-335, group Ft.]

77. Snohomish County. Sec. 33, T. 30 N., R. 7 E., southeast of town of Granite 

Falls. Menzel Lake deposit. Analyst, under supervision of Mark Adams| 

spectrochemical analyst, C. E. Harvey. Sample Sh 13-1. ( Danner, 1966, 

p. 16, 19, 82, 318, 324, 333, 337, 452, 464.) Limestone, vuggy. Chip 

sample. Index and geologic maps.

78. Snohomish County. NWiNEi sec. 25, T. 32 N., R. 8 E., south of town of

Fortson. Hi Hi deposit. Sample BM 1. ( Popoff, 1949b, p. 2, 4, 8, figs. 1,

3; Danner. 1966, p. 82. 326-328, 329.) Limestone, gray to nearly black.

finely crystalline, massive. Index and geologic maps. Possible use:

Probably none, deposit small and impure. 

79-81. County, analysts, reference and maps as in sample 77. Sec. 35, T. 32 N.,

R. 10 E., Conn Creek. Samples Sh 11-4 to Sh 11-6. Limestone, chipsample. 

82-85. Stevens County. Precambrian, [Edna Dolomite ]. Analyst, F. G. Mehl.

( Bennett, 1941, p. 3, 9, 12, 18-24, pis. 1, 2.) General mineralogy.

Index and geologic maps.

82. Sec. 36, T. 30 N., R. 37 E.,Turk area. Sample 25. Limestone.

83. Sec. 11, T. 30 N., R. 38 E., 1.25 miles southeast of U.S. Magnesite quarry. Sample 15. Magnesitic dolomite. 

84, 85. Sec. 31, T. 31 N., R. 39 E., Red Marble area. Samples

11, 12. Magnesitic dolomite, dark-gray; outcrop sample.

86-97. Stevens County. Precambrian, Stensgar Dolomite. SEiSWi sec. 36, T. 30N., 

R. 37 E., near town of Turk. Analyst, under supervision of W. W. Holbrook. 

(Bennett, 1943, p. 3-6,9^11,^2,13,29,21,pi.1.) General mineralogy. 

Tonnage estimated. Index map, geologic section. Possible use of magnesite: Source of magnesium for light-metal construction [ implied]. 

86-88. Channel sample, old mine adit.

86. Lab. No. 305, sample U-17. [Dolomitic magnesite.]

87. Lab. No. 307, sample U-18. [Magnesian dolomite.]

88. Lab. No. 315, sample U-38-41. [Magnesian dolomite.] 

89-92. Log of drill hole 2. [For other analyses from same drill hole, see 

samples 355-360, group Ftf samples 1052-1085, group F».]

*89. Lab. No. 196. Dolomite, gray; contains serpentine and

white silicate; depth 244.5-246.5 ft. * Analysis suggests 

16.2 percent more MgO and CaO than required for 

carbonate.

*90. Lab. No. 158. Dolomite, white; contains serpentine; depth 

181.5-182 ft. *Analysis suggests 15.5 percent more 

MgO and CaO than required for carbonate.

91. Lab. No. 151. Dolomite, brown, pink; contains chalcedony; 

depth 155-156 ft.

92. Lab. No. 149. Dolomite, dark-brown; contains chalcedony;

depth 152-154 ft.

93-96. Log of drill hole 3. [For other analyses from same drill hole, see 

samples 361, 362 group Ftf samples 1086-1094, group Fz .]

*93. Lab. No. 295. Dolomitic magnesite, white; depth 258.5- 

259 ft. *Analysis suggests 23.0 percent more MgO and 

CaO than required for carbonate.

*94. Lab. No. 292. [Dolomitic magnesite] magnesite, lightgray to white; depth 175-184.5 ft. *Analysis suggests 

24.0 percent more MgO and CaO than required for 

carbonate.

95. Lab. No. 290. [Magnesitic dolomite] dolomite; depth 

93-100 ft.

*96. Lab. No. 228. [Magnesitic dolomite] dolomitic magnesite, 

white, brown; depth 73-76 ft. *Analysis suggests 17.7 

percent more MgO and CaO than required for carbonate. 

97. Drill hole 5. [Dolomitic magnesite] magnesite, white, mediumcoarse texture; contains serpentine; depth 66-71 ft. Log of drill 

hole. [For other analyses from same drill hole, see samples 

365-371, group FIJ samples 1111-1117, group Fj.]
42 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

each greater than clay (Group C^ common- and mixed-rock categories Continued

Chemical analyses Continued

1

W ashington C ontinued

RJ~>.*

MgO* 

CaQ ______________

Ignition loss* __________

Class ________________

CaO/MgO _____________

*98

46C33-190

. ___ 18.94

. ___ 2.13

___ 39.55

. ___ 11.88

. ___ 27.50

. ___ 100.00

, ___ 15,6,53

Dolomitic

magnesite

99

46C43-79

27.27 

.72 

17.74 

24.13 

30.14

100.00 

26,2,63 

Dolomite

100

46C43-80

36.68 

.96 

21.45 

17.98 

22.93

100 .00

35,3,47

Magnesian 

dolomite

*101

46C33-193

36.24 

2.27 

31.50 

11.29 

18.70

100 .00

32,7,36

Dolomitic 

magnetite

*102 103

46C43-81 46C43-82

37.46 29.10 

2.27 1.64 

19.72 21.50 

19.27 20.89 

21.28 26.87

100.00 100.00

34.7.43 26,5,55

Magnesian Magnesian 

dolomite dolomite

Washington Continued

Insoluble 1 ____________

RJ~>. *

MgO* _______________

Caa __ __ ___

Total ___________

CaO/MgO ____ ______

110

46C43-91

. ___ 40.05

. ___ .88

. ___ 18.01

, ___ 18.72

. ___ 22.34

___ 100.00

___ 39,3,46

Magnesian

dolomite

*111

46C33-204

21.17 

1.33 

28.11 

21.43 

27.96

100.00 

19,4,56

Magnesian 

dolomite

*112

46C43-93

48.23 

1.41 

17.28 

16.15 

16.93

100.00 

46.4,34

Magnesian 

dolomite

113

46C43-97

32.92 

.41 

17.58 

20.92 

28.17

100.00 

32,1,58

Dolomite

*114 115

46C43-102 46C43-104

19.47 43.68 

1.74 2.70 

36.18 34.06 

10.73 6.54 

31.88 13.02

100.00 100.00 

17.5,62 39,8.24

Dolomitic Dolomitic 

magnetite magnesite

104

46C33-197

22.74 

1.48 

38.51 

5.15 

32.12

100.00

20,4,62

Dolomitic 

magnesite

116

46C43-106

44.84 

4.88 

16.87 

15.47 

17.94

100.00 

37,14,34

Magnesian 

dolomite

*105

46C43-83

35.92 

2.21 

33.05 

7.04 

21.78

100.00

32,6,42

Dolomitic 

magnesite

*117

46C43-107

26.59 

.57 

34.26 

15.41 

23.17

100.00 

26,2,46

Dolomitic 

magnesite

106

46C43-85

39.68 

1.98 

10.78 

25.83 

21.73

100.00

36,6.45

Calcareous 

dolomite

*118

46C43-108

28.75 

3.00 

35.75 

11.18 

21.32

100.00 

24.9.41

Dolomitic 

magnesite

107

46C43-87

27.02 

1.54 

14.53 

30.09 

26.82

108

46C43-88

34.19 

2.24 

8.42 

29.53 

25.62

100.00 100.00

24,5.56 30.7,54

Calcareous Calcareous 

dolomite dolomite

119

46C43-109

50.25 

3.58 

15.11 

15.36 

15.70

100.00 

44.10,31

Magnesian 

dolomite

*120

46C43-110

28.48 

5.12 

29.14 

14.16 

23.10

100.00 

20,15,44

Magnesian 

dolomite

109

46C43-90

42.77 

.74 

16.68 

18.1 

21.71

100.0

42,2,45

Magnesian . 

dolomite

121

46C43-111

44.55 

.96 

24.77 

3.12 

26.60

100.00 

43,3,51

Dolomitic 

magnesite

Washington Continued

Al^O, 

FejO, 

MgO ____ ______

CaO _____ _ __

Ignition loss _ __ __ _ .___

Total ___________

Class ________________

CaO/MgO _____________

122

46C43-117

'37.43 

} 2 4.52

*16.67 

18.68 

4 22.70

100.00

30,13.45

Magnesian 

dolomite

*123

46C43-121

'21.83 

*1.01

*19.20 

29.06 

4 28.90

100.00 

20,3,60 

Dolomite

*124

46C43-122

'34.11 

*3.51

*24.96 

17.32 

4 20.10

100.00

28,10,39

Magnesian 

dolomite

'includes silica and insoluble silicates, 

'iron and alumina. 

*By difference. 

4At950«C.

125 *126

46C41-2 46C41-7

'24.33 '23.62 

2 2.05 *1.85

*23.78 *45.56 

19.57 1.58 

4 30.27 4 27.39

100.00 100.00

21.6,61 21,5.52

Magnesian , , , 

, , Magnesite dolomite *

127

46C41-286

5 37.9 

1.3

25.9 

3.0 

T 31.0

[99.1]

36,4,60

Dolomitic 

magnesite

128

46C4 1-283

5 24.8 

1.9

16.6 

21.4 

T 35.0

[99.7] 

22.6,72 

Dolomite

129

46C41-285

5 33.5 

4.0

18.3 

15.3 

T 28.3

C99.4]

27.12,56

Magnesian 

dolomite

130

46C41-284

S 35.5 

4.3

18.0 

14.9 

T 27.3

[100.0]

28,13,54

Magnesian 

dolomite

131

46C43-1

*30.88 

*1.34

S 9.45 

26.90 

'31.43

100.00

29,4,67

Calcareous 

dolomite

132

46C42-14

*22.07 

f 1.78 

I .26 

.57 

42.96 

32.54

[100.18] 

19,6,73 

Calcite

s Mainly SiO,. 

*SiO,. 

'Mainly CO,. 

8 950°- 1 , 000"C; also called CO, .
ANALYSES OF SAMPLES 43

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

98-105. Stevens County. Precambrian, Stensgar Dolomite. SE^SW* sec. 36, 

T. 30 N.. R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. Drillhole 10. ( Bennett. 1943, p. 3-7, 9, ^4, 21. 

pi. 1.) Medium-coarse texture. General mineralogy. Tonnage estimated. Index map, geologic section. Log of drill hole. Possible use of 

magnesite: Source of magnesium for light-metal construction [implied] . 

[For other analyses from same drill hole, see samples 372-374, group FI; 

samples 1148-1155, group Fj.]

*98. Lab. No. 340. [Dolomitic magnesite] magnetite, dark-gray, 

white; depth 295-297 ft. ^Analysis suggests 25.0 percent 

more MgO and CaO than required for carbonate.

99. Lab. No. 335. Dolomite, grayish-white; depth 239-244 ft.

100. Lab. No. 334. [Magnesitic dolomite] dolomite, white to gray; 

depth 224-226 and 228-234 ft.

*101. Lab. No. 333. Dolomitic magnesite, gray, white, banded;

depth 206-222 ft. ^Analysis suggests 24.9 percent more MgO 

and CaO than required for carbonate.

*102. Lab. No. 332. [Magnesitic dolomite] dolomite, multicolored; 

contains serpentine; depth 150-161 ft. * Analysis suggests 17.0 

percent more MgO and CaO than required for carbonate.

103. Lab. No. 331. Magnesitic dolomite, multicolored; depth 

134-150 ft.

104. Lab. No. 326. [Dolomitic magnesite] magnesite, white, 

multicolored; depth 67-74 ft.

*105. Lab. No. 323. Dolomitic magnesite, brown; depth 3-25 ft; 

* Analysis suggests 19.6 percent more MgO and CaO than 

required for carbonate.

106-108. County, age, formation, locality, analyst, reference,and use as in 

samples 98-105. Drill hole 11. Medium-coarse texture. General 

mineralogy. Tonnage estimated. Index map, geologic section. Log 

of drill hole. [For other analyses from same drill hole, see samples 

375-377, group Ft; sample 1156, group Fj.]

106. Lab. No. 358. [Calcareous dolomite] dolomite, gray; contains 

serpentine; depth 137-150 ft.

107. Lab. No. 351. [Calcareous dolomite] dolomite, gray-green; 

contains calcite; depth 74-83 ft.

108. Lab. No. 350. [Calcareous dolomite] dolomite, dark; contains 

serpentine; depth 68-71 ft.

109-113. County, age, formation, locality, analyst, and use as in samples 98-105. 

Drill hole 12. ( Bennett, 1943, p. 3-6, 9, 14, _15. 21, pi. 1.) General 

mineralogy. Tonnage estimated. Index map, geologic section. Log 

of drill hole. [For other analyses from same drill hole, see samples 

378-380, group Fj; samples 1157-1179, group F2 .]

109. Lab. No. 399. [Magnesitic dolomite] dolomite, white; contains 

serpentine; depth 419.5-422 ft.

110. Lab. No. 398. [Magnesitic dolomite] dolomite, white; contains 

serpentine; depth 409-414 ft.

*111. Lab. No. 397. [Magnesitic dolomite] dolomitic magnesite, 

banded; depth 398-403 ft. ^Analysis suggests 20.7 percent 

more MgO and CaO than required for carbonate.

*112. Lab. No. 395. [Magnesitic dolomite] dolomite, brown, white; 

contains serpentine; depth 334-349 ft. ^Analysis suggests 

15.9 percent more MgO and CaO than required for carbonate. 

113. Lab. No. 382. Dolomite, white; contains serpentine; depth 

216-229 ft.

114, 115. County, age, formation, locality, analyst, and use as in samples 98-105. 

Drill hole 13. ( Bennett, 1943, p. 3-7, 9, 15, Jtf. 21, pi. 1.) General: 

Magnesite, light-gray to yellowish, medium-crystalline, mostly massive; 

mineralogy. Tonnage estimated. Index map. geologic section. Log of 

drill hole. [For other analyses from same drill hole, see samples 381- 

385, group FI; samples 1180-1206, group F2 .]

*114. Lab. No. 437. [Dolomitic magnesite] magnesite, gray, white; 

contains serpentine; depth 222-232 ft. * Analysis suggests 16.1 

percent more MgO and CaO than required for carbonate. 

115. Lab. No. 426. Dolomitic magnesite, white, gray; contains 

serpentine; depth 155-157 ft.

Washington Continued

116- 121. County, age, formation, locality, analyst, and use as in samples 98-105. 

Drillhole 14. ( Bennett, 1943, p. 3-7, 9, J16. 21, pi. 1.) General: 

Magnesite, predominantly white, mostly massive; mineralogy. Tonnage 

estimated. Index map, geologic section. Log of drill hole . [For other 

analyses from same drill hole, see samples 386, 387, group FI; samples 

1207-1217, group Fz .]

116. Lab. No. 458. [Magnesitic dolomite] dolomite, white, banded; 

depth 196-203 ft.

*117. Lab. No. 457. Dolomitic magnesite, gray, white; depth 194-196 

ft. * Analysis suggests 26.6 percent more MgO and CaO than 

required for carbonate.

*118. Lab. No. 456. Dolomitic magnesite, banded; depth 182-194 ft.

^Analysis suggests 26.7 percent more MgO and CaO than

required for carbonate. 

119. Lab. No. 452. [Magnesitic dolomite] dolomite, banded, argillaceous; depth 136-157 ft. 

+120. Lab. No. 451. [Magnesitic dolomite] dolomitic magnesite, white,

gray; depth 120-136 ft. * Analysis suggests 21.3 percent more

MgO and CaO than required for carbonate. 

121. Lab. No. 440. [Dolomitic magnesite] magnesitic dolomite,

white, brown; depth 23-33 ft.

122. County, age, formation, locality, analyst, and use as in samples 98-105.

Drill hole 16. Lab. No. 500. ( Bennett, 1943, p. 3-7, 9, 11. 21, pi. 1.) 

General: Magnesite, light-gray to yellowish, medium crystalline, mostly 

massive; mineralogy . Sample: [Magnesitic dolomite] dolomite, banded, 

argillaceous; depth 278-285 ft. Tonnage estimated. Index map, geologic 

section. Log of drill hole. [For other analyses from same drill hole, see 

samples 394-396, group FI; samples 1236-1247, group F2 .]

123- 126. County, age, formation, locality, analyst, and use as in samples 98-105. 

Drillhole 17. (Bennett. 1943, p. 3-7, 9, J17, 21, pi. 1.) General: 

Magnesite, predominantly white, mostly massive; mineralogy. Tonnage 

estimated. Index map, geologic section. Log of drill hole . [For other 

analyses from same drill hole, see sample 397, group Fj; samples 1248- 

1259, group Fj.] 

+123. Lab. No. 517. Dolomite, white; contains serpentine; depth

222-224.5 ft. * Analysis suggests 16.7 percent more MgO and

CaO than required for carbonate.

*124. Lab. No. 515. Magnesitic dolomite, gray, brown, banded; depth 

211-219 ft. *Analysis suggests 22.4 percent more MgO and 

CaO than required for carbonate.

125. Lab. No. 514. Magnesitic dolomite, gray, white, banded; depth 

127-157 ft.

*126. Lab. No. 509. Magnesite, gray, brown, white; depth 83-86 ft.

* Analysis suggests 22.2 percent more MgO and CaO than required 

for carbonate.

127-130. Stevens County. Stensgar Dolomite. NW$ sec. 10, T. 30 N., R. 38 E., 

west and north of town of Springdale, U.S. Magnesite area. Analyst, 

F. G. Mehl. (Bennett, 1941, p. 3, 12, 19, 20, 23, 24, 25.) General: 

Magnetite, some dolomite; from quarry; mineralogy. Index and geologic 

maps.

127. Sample 56. [Magnesite.] 129. Sample 47. [Dolomite.]

128. Sample 44. [Dolomite.] 130. Sample 45. [Dolomite.]

132.

Stevens County. Cambrian, Old Dominion Limestone. NE^NWi sec. 35, 

T. 34 N., R. 38 E. , about 11 miles northwest of town of Addy . Owner, 

W. G. Merryweather. Sample 511. (Bennett, 1944, p. 7, 31-33, pi. 10; 

Bennett, 1945, p. 15.) Deposit description: Dolomite, light-gray to 

white, some banding, medium to coarsely crystalline. Fresh sample from 

outcrop, fragments taken every 5 ft, usually for a length of 50 ft. Tonnage 

estimated. Index and geologic maps. Former use: Building stone. 

Possible use: General uses of dolomite; refractories, crushed stone.

Stevens County. Cambrian(?), Northport Limestone. SWjSWi sec. 26, 

T. 39 N., R. 39 E. , 6 miles southwest of town of Northport. Ideal 

Cement Co. Diamond-drill hole 4, drilled at inclination of -70°. ( Mills, 

1962, p. 74, 96, 100, 102, pis. 1, 4.) Unit description: Limestone, 

gray, fine-grained, bedded; total thickness at least 800 ft. Sample depth 

96-108 ft. Tonnage estimated. Index and geologic maps, geologic section. Possible use: Cement. [For other analyses from same drill hole, 

see samples 1601-1609, group F2 .]
44 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 3. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing uncombined silica and carbonate each less than 75 percent, 

uocombined silica and carbonate each greater than clay (Group CX common- and mixed-rock categories Continued

Chemical analyses Continued

Washington Continued

SiO| _________

A 1.0.

Fe.0, .

FeO ______ .

MgO .

CaO _______ .

U.D

Ignition loss ___

Total __ _

Class _________

CaO/MgO ______

133

46C42-16

. __ 20.35

. __ 3.22

. __ .61

. __ 2.03

. __ 42.04

. __ 31.93

. [100.18]

. __ 14,11,70

Magnesian

calcite

134

46C42-5

30.60 

2.76 

.28

1.83 

36.41

28.53

[100.41] 

25,9.62

Magnesian 

calcite

135

46C42-6

25.01

2.22 

39.93

32.06

[100.66] 

23,4,71

Magnesian 

calcite

136 137

46C42-7 46C42-8

48.94 27.12 

> 1 4.68 *3.64

1.51 14.80 

26.22 27.87

.061 .042 

'18.71 *26.65

138

46C42-9

27.16 

'.95

.27 

40.08

.030 

*31.64

[100.12] [100. 12] [100. 13] 

41,14,39 21.11,55 26.3,71

Magnesian Calcareous _ , . 

, . j , Calcite calcite dolomite

*139

46C43-158

40.35 

f None 

\ .00 

1.66 

22.07 

11.85 

'6.85

T 17.22

100.00 

40,7,35

Calcite

*140

46C43-157

27.11 

1.90 

*1.90 

*2.44 

15.45 

23.68 

4 8.32

T 19.30

[100.10] 

22,18,41

Dolomite

141

46C43-156

23.98

.96 

.44 

16.43 

22.51 

'.26

'35.61

100.19 

23,2,75

Dolomite

142

46C37-110

24.20 

3.10 

1.17

38.38

31.83

[98.68] 

17,13,69

Calcite

143 144

46C37-132 46C37-69

34.58 34.53 

[ J 2.62 2.70

1.08 1.08 

33.95 34.04

.047 .046 

'27.72 27.72

'[100.00] [100.12] 

30,8,61 30,8,61

Calcite Calcite

145

46C37-75

37.38 

'6.62

1.74 

29.50

.013 

*24.52

[99.77] 

26,19,51

Magnesian 

calcite

* Fe_O. =2.44 percent. FeO = 1.80 percent (Shedd, 1903, p. 142) . 

'Water above 110°C and undetermined, by difference. 

4 HtO and undetermined matter, by difference.

'Sample dried at 110°- 112«C,ignition loss 1.000°-l,100eC.

'CO,.

'CO., reported as 33.61 percent (Shedd, 1903, p. 142) .

f Na.O = 220 ppm, K.O = 440 ppm, Tid. = 700 ppm, S =1,770 ppm.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: UjO.BeO,B.Ol.KjO.Sc,O,,CoO,ZnO,Ga.O,,GeOJ.AsIOl.Y.O,.Nb.O6 ,MoOs.Ru,Rh,Pd.CdO,InjO,,SnO|. 

Sb.O,,BaO.TeC..Cs,O.La_O, < CeO,.Pr,O,.Ncl,O,,Sm2O,.Ei^ 

TbO|,UO.; sample 136. K.O = 2.78 percent; sample 137, CoO= 0.001 percent]

N*|0 ___________

TiO, ___________

V.O, ___________

Cr,O, __________

MnO ___________

136

________ 1.25

________ .24

________ .0048

________ .0038

________ .23

137

0.105

.0011 

.23

138

0.033

.0010 

.066

143

0.13 

.058

.0012 

.10

145

0.70 

.16 

.0064 

.0028 

.15

NiO ________

CuO _______

SrO ________

ZrO, _______

AftO _______

136

____ 0.003

____ .014

____ .014

____ .00047

137

0.001 

.021 

.011 

.014

138 143

_____ 0.0034

0.0019 .0078 

.018 .017 

_____ .002

145

0.0094 

.0073 

.015 

.010 

.0002

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

133-135. Stevens County. Cambrian..?), Northport Limestone. SWiSWi sec. 26, 

T. 39 N., R. 39 E., 6 miles southwest of town of Northport. Ideal 

Cement Co. Diamond-drill hole 4A, drilled at inclination of +15°. 

(Mills, 1962, p.74,96,97.100.^101,102,ph.1,4.) General: Limestone, 

white to light-gray, medium- to coarse-grained, relatively massive; 

estimated thickness 750 ft. Tonnage estimated. Index and geologic 

maps, geologic section. Possible use: Cement. [For other analyses 

from same drill hole, see samples 430-435, group F_; samples 1610- 

1622, group Ft.j

133. Interval, 214-229 ft.

134. Interval, 313-430 ft.

135. Interval, 441-570 ft.

136. Stevens County. PaleozoicC?) probably Cambrian. NEiNEi sec. 19, 

T. 27 N., R. 38 E., west side of Cayuse Mountain. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample S-212. (Mills, 1962, p. 12,13,176,^77,251,264,pi. 1.)Limestone, gray, fine-grained, thin-bedded; 65 ft thick. Few thin interbeds 

of limy shale, chip sample from outcrop. Index and geologic map. 

Possible use: None.

137. County, analysts, map, and use as in sample 136. Mississippian and (or) 

Pennsylvanian. SEiNWi sec. 7, T. 32 N., R. 41 E., 1.5 miles east 

of town of Chewelah. Sample S-168. (Mills, 1962. p.12,13,163,164, 

250,262,264,pi. 1.) Calcareous dolomite, greenish-gray, brittle, wellbedded. Combination of 25 grab samples.

138. County, analysts, maps,and use as in sample 136. Permian. NEiSWi 

sec. 15, T. 37 N., R. 38 E., about 1 mile south of town of Evans. 

Ideal Cement Co. Sample S-60. (Mills. 1962. p. 12,13,123.125.126. 

248,259,264,pi.1.) Limestone, thin-bedded. Chip sample from outcrop.

*139. Stevens County. [T. 31 N., R. 40 E.], near town of Valley. North

American Marble and Onyx Co. Analyst, R. W. Thatcher. ( Shedd, 

1903, p. 97.J98,100,^42.) Dolomite, light-colored, fine-grained, 

stratified: contains serpentine. Thin-section description. Possible use: 

Ornamental stone. * Analysis shows 1.7 percent FeO; suggests 16.4 

percent more MgO and CaO than required for carbonate.

*140. Stevens County. Sec. 18, T. 31 N., R. 41 E., 2 miles east of Valley. 

Pacific Coast Marble, Tiling,and Manufacturing Co. Analyst,

Washington Continued

R. W. Thatcher. (Shedd, 1903, p. 103, K>4,105,142.) Deposit: [Dolomite] 

marble, mixture of white and green; massive; contains serpentine and calcite; 

at lean 40 ft thick. Surface sample. Mineralogy, thin-section description. 

Possible use: Ornamental stone. * Analysis shows 2.4 percent FeO; suggests 

17.8 percent more MgO and CaO than required for carbonate.

141. Stevenl County. [T. 32 N., R. 40 E.], 1.5 miles west of Chewelah. Chewelah 

Mottled Marble Co. Analyst, R. W. Thatcher. ( Shedd, 1903, p. 128, 142; 

Eckel, 1912, p. 171, 173.) [Dolomite] marble, pink, fine-grained, crystalline, massive, flinty. Use: Probably none.

142. Whatcom County. Early Pennsylvanian part of Chilli wack Gronp. NEjSW} , 

NWiSEj, NEJ sec. 14, T. 40 N., R. 5 E., Red Mountain. Permanente 

Cement Co., Kendall quarries. Analyst, E. J. Baldwin. ( Danner, 1966, 

p. 82. 209, 210. 213, 215. 218. 219.) Limestone, fossiliferous. Index and 

geologic maps. Former use: Hydrated lime. Use: Cement.

143. Whatcom County. Probably Early Pennsylvanian part of Chilliwack Group.

NEi sec. 4, T. 40 N., R. 6 E., north of town of Maple Falls. Black Mountain 

deposits. Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample W 7-3. ( Danner, 1966, p. 16, 19, 82, 209, 210, 249, 

250, 252-254, 255, 452, 465.) Limestone, gray, massive, well-bedded, 

fossiliferous. Chip sample taken across 400 ft. Tonnage estimated. Index and 

geologic maps, geologic sections. Possible use: Cement.

144. County, locality, maps, and lections as as in sample 143. Early Pennsylvanian 

to Early Permian part of Chilliwack Group. Analyst, C. S. Homi; collector, 

W. R. Danner. Sample W 7-3. ( Moen, 1962, p. 4, 8, 16. 18, 92, 96-98, 

100, 119, pi. 1.) General: Limestone, gray, dense to crystalline, fossiliferous. 

Moderate to large tonnage. Possible use: Concrete aggregate, ballast, road 

metal, riprap.

145. Whatcom County. Devonian to Early Permian, Chilliwack Group. NW* sec. 5, 

T.40N..R. 6E. Northwest Black Mountain deposit. Analyst, C. S. Homi; 

spectrochemical analyst, C. E. Harvey. Sample W 20-2. ( Moen, 1962, 

p. 4, 8, 92, 97, 100, pi. 1; Danner, 1966, p. 16, 19, 82, 210, 244, 245. 453, 

466.) Limestone, fossiliferous. Chip sample taken across 200 ft. Index and 

geologic maps, geologic sections. Possible use: None, rock impure.
ANALYSES OF SAMPLES 45

Table 4. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing more than 75 percent clay (Group D), common- and mixed-rock categories

[ Samples of mixed-lock category indicated by an asterisk (*). Chemical analyses arranged by State, quadrangle or county, and snatigraphic position]

Chemical analyses

SiOj ________ .

A120, .

FejO, .

FeO _________ .

MgO .

CaO _________ .

Na20 ________ .

K2 0 _________ .

HjO ___ __.

TiO, ________ .

MnO ________ .

SO, _________ .

NaCl + KCl ____ .

Total ___ .

'Total iron.

1

50D23-6

52.31

__ 16.71

8.05

__ 4.36

__ 4.76

 ] 4.77

.88

2 .18

*7.98

__ [100.00]

__ 14,70,4

*2

50D23-7

42.86 

23.09 

9.19

5.20 

6.41

5.15

.97 

2 .18

4 6. 95

[100.00] 

0,77,0

3

50D23-2

52.23 

15.98 

9.06

4.88 

4.20

4.42

.81 

2 .20

* 8. 22

[100.00] 

14,70,4

4

50D23-5

51.89 

17.15 

8.63

4.68 

4.11

4.89 f

.87 

2 .19

4 7. 59

[100.00] 

12,72,2

'C

*5

Alaska

6

50D36-18

44.3 

18.0 

3.5 

8.5 

6.2 

8.7 

1.4 

1.3 

4.50 

.85 

.37 

.17

'1.80

99.6 

9,62.4

:o,.

48.4 

17.2 

3.1 

6.4 

4.3 

10.5 

1.8 

1.2 

3.40 

.74 

.43 

.14

'2.20

99.8

*7

50D36-31

51.3 

18.8 

5.7 

3.0 

3.4 

7.6 

5.2 

1.0 

1.80 

.74 

.28 

.16

'.34

99.3 

12,66,1

*8

50D36-30

50.3 

18.3 

5.0 

3.5 

4.1 

8.3 

4.5 

1.9 

2.00 

.53 

.24 

.16

'.48

99.3 

12,63,1

9 10

50D42-4

63.28 66.88 

19.14 20.23 

'5.93 '6.27

2.00 2.11 

2.44 2.58 

.64 .68 

.81 .86

.55 .58

*5.40 ______

100 . 19 100 . 19 

23,71,0 ______

*11

50D57-1

54.88 

15.75 

6.78

4.54 

4.44

| 6.80

.93

2 .21 

.17

*5.57

[100.07] 

19,64,0

12

50D155-158

61.85 

18.15 

7.28

3.80 

.81 

( 1.42 

\ .65

.15

5.27

[99.38] 

22,71,0

13

50D156-110

61.0 

19.5 

7.0

.8 

.92

.32

.22 

'.52 

4.84

95.1 

19,74,0

'Gravimetric determination. 

4 Loss, COj. HjO, organic.

'Sample dried at 110°F. Ignition loss includes organic 

matter, small amount of COj, HjO, and sulfur.

DESCRIPTIVE NOTES 

[Underscored page nnmbers in reference indicate source of analysis]

Alaska Alaska Continued

1-4. Ely ing Sound quadrangle. Holocene [ implied]. Off southern Alaska coast. 

Analyst, Willard Woodstock. ( Tyler, 1931, p. 12-Jj>, 16-20.) Mud, 

bottom sample; fossiliferous. Mineralogy. Index maps.

1. Lat 59°36' N., long 148*32' W. Sample 7. Depth of water 612 ft.

*2. Lat 59°37' N., long 148°10 I W. Sample 8. Depth of water 528 ft. 

' 'Analysis shows 5.2 percent alkalies; MgO and CaO not calculated 

as carbonate.

3. Lat 59°38' N., long 148°33' W. Sample 3. Depth of water 390 ft.

4. Lat 59°38.6' N.. long 147°51' W. Sample 6. Depth of water 408 ft.

5,6. Craig quadrangle. Middle Ordovician to Early Silurian. [Abont 19.0, 10.0], 

Prince of Wales Island, head of Karta Bay. Analysts, P. L. D. Elmore. 

K. E. White, S. D. Bolts. ( Sainsbury,. 1961, p. 301, 312. 313. pi. 33.) 

Index and geologic maps.

*5. Lab. No. 147327. Matrix of conglomeratic volcanic graywacke. Bulk 

density 2.975. Analysis used in computations. *Analysis shows 8.5 

percent FeO, 2.7 percent alkalies, 0.8 percent TiOj; suggests 12.9 

percent more MgO and CaO than required for carbonate. 

6. Lab. No. 147326. Composite chip sample from numerous cobbles of 

pyroxene porphyry encased in matrix of volcanic gray wacke. Bulk 

density 2.970.

7, 8. Craig quadrangle. Early Silurian. Analysts, P. L. D. Elmore, K. E. White, 

S. D. Botts. ( Sainsbury, 1961, p. 301. 311, 313. pi. 33.) Albitized 

conglomeratic volcanic gray wacke or conglomeratic tuffaceous gray wacke. 

Chip sample of more than 100 ft. Index and geologic maps.

*7. [About 19.8, 11.7],Prince of Wales Island, south shore of entrance 

toThorneBay, near south arm of bay. Lab. No. 145071. Bulk 

density 2.900. * Analysis shows 6.2 percent alkalies, 3.0 percent 

FeO; suggests 10.6 percent more MgO and CaO than required for 

carbonate.

*8. [About 19.8, 11.9],Prince of Wales Island, north shore of entrance of 

Thorne Bay. Lab. No. 145070. Bulk density 2.967. *Analysis 

shows 6.4 percent alkalies, 3.5 percent FeO; suggests 11.8 percent 

more MgO and CaO than required for carbonate.

9,10. Fairbanks quadrangle. Pleistocene,Kowak Clay or Yukon Silts. [Probably

sec. 7, T. 1 N., R. 1 E.],about 7 miles from town of Fairbanks, roadcut on 

Steese highway, near south fork of Engineer Creek. Analysts, T. A. Bell, 

T. C. Bruce. M. H. Clarke. Sample I. ( Taber, 1943, p. 1438, 1454, 

1467, 1472, 1474, 1475, 1478-1480, 1484.) Silt: light brown when dry, 

dark grayish brown when wet; shows thin lenticular bedding; fossiliferous. 

Mineralogy. Mechanical analysis. Index maps, generalized section.

9. [Calculated by compilers to include ignition loss.] Analysis used in 

computations.

10. Analysis as reported in text; average of two or more determinations. 

Dry basis.

*11. Icy Bay quadrangle. Holocene [implied]. Lat 59°42' N., long 143°49' W,

off southern Alaska coast. Analyst, Willard Woodstock. Sample 1. ( Tyler, 

1931, p. 12Oj>, 16-20.) Mud. bottom sample; fossiliferous. Depth of 

water 468 ft. Mineralogy, 'index maps. *Analysis shows 6.8 percent 

alkalies, 0.9 percent TiOz ; MgO and CaO not calculated as carbonate.

12. Healy quadrangle. Jurassic*?). [Sec. 20, T. 17 S., R. 7 W.],about 3.9 

miles southwest of Windy, on Windy Creek. Collector, R. E. Fallows. 

Lab. No. 10377. ( Moxham. Eckhart,and Cobb. 1959. p. 69, 92, 93, 94. 

pi. 11.) Clay stone, dark-gray, platy, siliceous. Stratigraphic thickness 

25 ft. Tonnage estimated. Index and geologic maps, geologic sections. 

Possible use: Cement.

13. Healy quadrangle. Jurassic. [Sec. 20, T. 17 S., R. 7 W., unsurveyed],

lower part of Windy Creek. Sample 652. ( Warfield, 1962, p. 3, 12, 13, 

20, 22. 24.) Shale, black. Channel sample taken across 80 ft, from 

outcrop. Index and geologic maps. Possible use: Portland cement, mineral 

wool.

487-187 O - 73 - 4
46 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska. Idaho. Oregon, and Washington.containing more than 75 percent clay (Group D), common- and mixed-rock categories Continued

Chemical analyses Continued

Alaska Continued

SiO, ______ .

Al,0, .

Fe,0, .

FeO _______ .

CaO ______ .

Na,O ______ .

V-Tl

CO, .

SO, .

Cl ________ .

Vf>t _______

Total __

Class _______

14

SOD 

156-111

. ___ 60.4

. ___ 20.6

. ___ 7.0

. ___ .24

- } '.58

'

. ___ .32

. ___ .20

____ 95.5

____ 16.77,0

15

SOD 

156-112

62.6 

22.7 

7.5

.29 

1.8

'.82

.30

.17

5.2

101.4 

14.84,0

16

SOD 

156-108

57.8 

22.7 

7.0

.6 

.80

'l.O

.34

.20

5.36

95.8 

10,83,0

17

SOD 

156-121

63.0 

20^9 

6.9

.15 

1.2

'l.O

.28

.19

3.6

97.2 

18,76.0

18

SOD 

156- 105

57.1 

20.0 

6.8

2.1 

1.54 

( *.43 

( '.49

.32

.25

6.42

95.4 

14.76.0

19

SOD 

156-106

55.3 

23.4 

7.6

1.8 

.52 

'.40 

*.36

.32

.19

6.94

96.8 

5.88.0

20 21

SOD SOD 

156-109 155-174

59.4 56.02 

22.1 17.23 

7.2 *8.08

.09 2.27 

1.14 1.61

)

' 79 < '" 1 2.53

 4(3.71)

_____ \3.34)

_____ .80

.32 ______

.18 ______

4.40 *9.79

95.6 99.62 

12.81,0 16,71.7

22

SOD 

155-163

55.83 

17.19 

'8.79

2.30 

1.54 

1.07 

2.63 

4(4.39) 

4(3.69) 

.78

*10.04

100.17 

16,73.7

*23 *24

SOD SOD 

107-1 109-5

35.47 49.70 

15.12 18.81 

7.61 3.12 

2.98 6.61 

11.67 5.63 

5.57 10.45 

.37 2.98 

1.27 .99 

7.84 .09 

8.71 .04 

2.52 1.14 

.78 .32 

.21 .18 

.00 .01

.00

100.12 100.07 

0,75,0 13,59,0

Idaho

*25 *26

11D 11D 

4-4 4-5

23.8 30.2 

10.1 11.1 

2.2 3.0

13.8 12.6

.3 .3 

11.3 10.3

3.2 .6 

*3.2 *2.0

.91 1.17 

.02 .02 

4(17.1) 4(12.6) 

27.7 24.8

[96.5] [96.1] 

3,60,0 7,62.0

Idaho Continued

SiO, __ _____

A1,0S ______

Fe,0, ______

MgO _______

CaO _______

TiO, ______

P-Ti

CO, _______

s __________

F

MoO, __

Total _

Class __

*27

11D4-10

____ 24.9

____ 12.2

____ 2.1

____ 15.2

____ 11.8

____ .6

____ 1.6

____ 1.16

< 01

____ 4(11.7)

____ 25.9

____ [95.5]

____ 1,64.0

*28

11D4-11

25.4 

11.2 

2.0

12.0

10.7 

1.7 

4.2 

.91

.08 

28.7

[96.9] 

3,64.0

*29

11D4-12

16.6 

9.3 

2.6

10.5

10.4 

.5 

5.8 

1.35

.08 

4 (16.2) 

40.6

[97.7] 

0,67.0

*30

11D4-13

23.4 

12.3

2.7

11.8

9.8 

1.5 

3.9 

1.08

.07 

4(9.7) 

32.1

[98.6] 

0,70,0

*31

11D4-7

15.0 

4.7 

1.4

17.4 

.2

12.8 

.6 

4.6 

1.60

.07 

\25.7) 

41.2

[99.6] 

5.57,1

*32

11D4-17

23.4 

6.8 

1.8

17.4

13.1 

.6 

2.8 

.94 

.3

.03 

4(16.0) 

30.0

"[97.1] 

9,68,0

33 *33a

11D5-1 11D15-5

59.9 29.8 

24.6 7.6 

6.6 T 1.87 

.4 .40 

.8 21.5

_____ 13.8

_____ .39

_____ .98

_____ '.015

_____ 7.98

8.9 '17.6

[101.2] [101.9] 

9.90.2 13.52,1

34

11D28-1

64.5 

21.2 

2.86

6.7

[95.3] 

24.71,0

35 36

11D28-7 11D29-3

58.4 64.9 

29.6 25.15 

1.9 1.9 

.04 1.05 

1.55 1.2

9.1 6.8

[100.6] [101.0] 

4,94,3 18(80,0

Idaho Continued

SiO, _______

A1|O| ______

Fe.O.

MgO _______

CaO _______

NajO ______

K,0 _______

HjO- ______

TiO, ______

Total _

39

11D29-8

____ 58.4

____ 28.4

____ 2.6

____ .28

____ 11.3

____ [101.0]

____ 5.95.1

'Total iron. 

* Gravimetric determination . 

'NaCl +KC1; by gravimetric 

determination. 

4 Not included in total. 

1 Reported as S .

40

11D29-6

56.55 

30.36 

U 2. 72 

.04 

.28 

.08 

.15

9.97

100.15 

0,99,1

41

11D29-5

54.00 

29.00 

"4.00

11.00

98.00 

0.97,0

42

11D29-55

53.80 

28.60 

U 4.40 

Trace 

.56 

.88 

.53

11.70

100.47 

0,97,1

43

11D29-4

53.78 

28.57 

4.39 

Trace 

.56 

.88 

.53

B11.70

100.41 

0,97,1

44

11D29-13

62.3 

26.1 

1.11 

.21 

.27 

.11 

.30 

B 1.07

9.9

101.4 

15,85,1

6 Moisture , both above and below 105*C; 

CO,; and possible loss of oxygen from Fe2O3 .

7 Reported as Fe . 

"Reported as V. 

*At 1,000«C.

45 46

11D29-36 11D29-37

50.3 62.9 

28.0 25.1 

8.9 2.2

1.4 .8 

*10.7 *8.9

[99.3] [99.9] 

0,92,0 16,83,0

47

11D29-38

47.3 

24.8 

12.4

4.0 

*9.2

[97.7] 

0,87,0

 Subtotal 97.2 percent, Less 

0 . 1 percent; total = 97 . 1 percent 

"includes FeO. 

"Moisture below 100°C. 

"Volatile.

48

11D29-49

56.3 

28.3 

3.6

1.0 

*10.2

[99.4] 

2.96,0

0 =

37 38

11D29-28 11D29-7

54.4 55.6 

28.5 29.1 

8.2 3.9 

.2 .42 

1.7 Trace

8.3 11.9

[101.3] [100.9] 

0,96,0 0,99.1

Spectrographic analyses

[ND = looked for but not detected ]

24 33a

ie ______

f ______

la _____

>c _____

H _____

V ______

«

5r _ _ _

r ______

vlo _____

Ag _____

Ba _____

La ___ _

>b _____

ND <0.001 

ND .01 - 0.1 

___ : _ .1 - 1.0

0.003 _____

_____ .1 - 1.0

.03 ______

.006 .1 - 1.0 

_____ .001- .01

.003 .01 - .1

.02 .001- .01 

_____ .01 - .1

.003 ______

.04 .01 - .1 

ND .01 - .1 

.003 .01 - .1

____ .ei - .1

______ .001- .01

.05 .01 - .1

ND ______

ND _____
ANALYSES OF SAMPLES 47

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference Indicate source of analysis]

Alaska Continued

14, IS. Healy quadrangle. Jurassic. [Sec. 20, T. 17 S., R. 7 W., unsurveyed], 

lower part of Windy Creefc. ( Warfield, 1962, p. 3, 12, 13. 20, _21, 22- 

24.) Shale, black. Channel sample from outcrop. Index and geologic 

maps. Possible use: Portland cement, mineral wool.

14. Sample 653; taken across 100 ft.

15. Sample 654; taken across 80 ft.

16. Quadrangle, age, reference, maps, and use as in samples 14, 15. [Sec. 21, 

T. 17 S., R. 7 W., unsurveyed],along Little Windy Creek just above 

its confluence with Windy Creek. Sample 642. Shale, black, thin-bedded. 

Channel sample taken across 54 ft; from outcrop.

17. Quadrangle, age, reference, maps, and use as in samples 14, 15. [Sec. 22, 

T. 17 S., R. 7 W., unsurveyed],Cantwell to McKinley Park highway, near 

confluence of Jack River and Windy Creek. Shale, black. Channel 

sample taken across 50 ft; from outcrop.

18, 19. Quadrangle, age, reference, maps, and use as in samples 14, 15. [Sec. 28, 

T. 17 S., R. 7 W., unsurveyed],cut on Alaska railroad between mile 

321-322. Shale, black, thin-bedded. Channel sample from outcrop.

18. Sample 635; taken across 100 ft.

19. Sample 636; taken across 43 ft.

20. Quadrangle, age, reference, maps, and use as in samples 14, 15. [Sec. 29, 

T. 17 S., R. 7 W.],along small gully 0.5 mile northeast of Alaska railroad crossing. Sample 648. Inter bedded black shale and purple graywacke; 

some yellow limonite stain. Channel sample taken across 100 ft; from 

outcrop.

21, 22. Healy quadrangle. Tertiary. ( Cobb, 1951, p. 139, 142, 165-^67. pis. 18, 

19.) Index and geologic maps, columnar sections. Use: Portland cement.

21. NWi sec. 16, T. 12 S., R. 6 W., near mouth of Cripple Creek. 

Lab. No. 45. Clay.

22. Sec. 22, T. 12 S., R. 7 W., Healy Creek. Lab. No. 39C. Claystone. 12 ft thick.

*23. Prtbilof Islands quadrangle. Pleistocene or Hoiocene. [12.2,3.8],

St. George Island, 1 mile east of Suskaralogh Point. Analyst, B. Bruun. 

(Barth, 1956. p. 117, 139. 147, 153, pis. 20, 21.) General: Tuff, 

whitish or yellow; numerous brown dots. Norm and cation percentages 

given. Index maps. * Analysis shows 3.0 percent FeO, 1.6 percent alkalies, 

2.5 percent TiOt; MgO and CaO not calculated as carbonate.

*24. Rat Islands quadrangle. Tertiary( ?) or Quaternary. [16.05,12.9],

Semisopochnoi Island, Tuman Head. Analyst, W. J. Blake; spectrographic 

analyst, E. L. Hufschmidt; collector, H. A. Powers. Lab. No. ID-20750. 

( Coats. 1959, p. 477, 479, 504, 514, 515, pi. 59.) Pyroclastics 

( olivine-hypersthene basalt), medium-gray, dense; 10-20 ft thick. Mineralogy. Norms and Niggli numbers. Index and geologic maps, geologic 

section. ^Analysis shows 6.6 percent FeO, 4.0 percent alkalies, 1.1 

percent TiOj; MgO and CaO not calculated as carbonate.

Idaho

25-32. Bear Lake County. [ Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. T. 14 S., R. 43 E.] ( Ravitz and others, 1949, p. 306, 

309,320.) Shale. Use: Fertilizer, source of vanadium. 

25,26. [Near] town of Paris. Paris Cany on deposit.

*25. Lot 6-6. * Analysis shows 3.2 percent S, 0.9 percent 

Vf>g: suggests 14.9 percent phosphate.

*26. Lot 6-10. *Analysis shows 2.0 percent S. 1.2 percent

VzOg; suggests 13.6 percent phosphate.

27- 32. [Near] towns of Paris and Bloomington. Paris and Bloomington 

Canyons.

*27. Lot 6-4. * Analysis shows 1.6 percent S, 1.2 percent 

VjOs; suggests 15.5 percent phosphate.

*28. Lot 6-7. ^Analysis shows 4.2 percent S, 0.9 percent 

VjOg; suggests 14.1 percent phosphate.

*29. Lot 6-8. * Analysis shows 5.8 percent S, 1.4 percent 

VjOs; suggests 13.7 percent phosphate.

*30. Lot 6-9. *Analysis shows 3.9 percent S, 1.1 percent 

VjO5; suggests 12.9 percent phosphate.

*31. Lot 6-13. ^Analysis shows 4.6 percent S, 1.6 percent 

VjOs; suggests 16.9 percent phosphate.

*32. ^Analysis shows 2.8 percent S, 0.9 percent VjOs; suggests 

17.3 percent phosphate.

33. Benewah County. Middle to late Miocene, Latah Formation. Sec. 20,

T. 46N.. R. 2 W., 2 miles west of St. Maries, railroad cut. Analyst, 

J. H. Jonte. Sample 8. ( Skeels, 1920, p. 27. J28; Hubbard, 1956a, 

p. 2, J23, pi. 1.) Clay, gray with brown streaks, medium-fine-grained; 

19 ft exposed. Index map, geologic sections, columnar section. Physical 

properties, firing tests. Possible use: Brick, refractories, tile.

Idaho Continued 

*33a. Caribou County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. [Sec. 29],T. 10 S., R. 45 E., near Georgetown. Field No. 

CF-9. ( Town, 1966, p. 2-6, 7,. 10, 12.) Phosphatic shale, dark-brown, 

nonfriable. Trench sample. Mineralogy, thin-section description. Geologic 

section, compositional triangle. Beneficiation tests. *Analysis shows 1.0 

percent S; suggests 32.7 percent phosphorite.

34. Kootenai County. [Latah Formation.] Sees. 8, 9, 16, 17, T. 50N., R. 3W., 

3 miles northeast of town of Coeur d' Alene. Fernan Hill deposit. ( Kelly 

and others, 1956, p. 50, j>7.) Clay, as much as 30 ft thick. Tonnage 

estimated. Index map.

35. Kootenai County. Latah Formation. SEi sec. 9, T. 50 N., R. 4 W., about 

2-3 miles northwest of Coeur d* Alene. Stockton deposit. Analyst. 

J. H. Jonte. Sample 19. ( Skeels, 1920, p. 1, 31, 35, 36; Scheid, 1952, 

p. 5, 8, ^4, 16, 18, 20, pis. 1. 2, fig. 1, table 2.) clay, white, finegrained, massive; 4 ft exposed, possibly as much as 46 ft thick, average 

thickness about 18 ft; overburden 1-5 ft. General mineralogy. Index and 

geologic maps, geologic section, columnar section. Physical properties, 

firing tests. Possible use: Source of alumina, face brick, terra cotta. 

sewer pipe, pottery, refractories, draintile.

36. Latah County. [MioceneJ NWi sec. 18, T. 39 N., R. 4 W., 0.75 mile

north of Joel Station. Moscow Fire Brick and Clay Products Co., abandoned 

pit. Analyst, J. H. Jonte. Sample 46. ( Skeels, 1920, p. 1, 47, 51, 52; 

Wilson, 1934, p. 14, 63, 69, 10,12.) Sample: Clay, gray, fine-grained; 

30-50 ft thick, overburden 3-4 ft. Index and geologic maps, geologic 

section, columnar section. Physical properties, firing tests. Former use: 

Face brick, firebrick. Possible use: Refractories, whiteware.

37. Latah County. Miocene. [T. 39 N., R. 4 W.],6 miles east of town of

Moscow, 1 mile north of Joel Station. Analyst, J. H. Jonte. Sample 40. 

(Skeels, 1920, p. 1, 47-49.) Clay, red, medium-grained; 10 ft exposed; 

overburden 2 ft. Geologic section, columnar section. Physical properties, 

firing tests. Possible use: Face brick, draintile.

38,39. Latah County. Latah Formation. [Probably] NE^NW} sec. 16. T. 39 N., 

R. 5 W., near Moscow. Canfield deposit. Collector, V. E. Scheid. 

( Hubbard, 1956a, p. 4, J5-7, pis. 1-3, table 1.) Tonnage estimated. 

Index and geologic maps. Use: Firebrick.

36. Sample 4. Clay, yellow; 2 ft bed. 

39. Samples. Clay, gray; 4 ft bed.

40-42. Latah County. Latah Formation. Sec. 16, T. 39 N., R. 5 W., about 1 mile 

southeast of Moscow. Moscow Fire Brick and Clay Products Co., Canfield 

pits. (Hodge, 1938e, p. 494-496, 503, 610, 613, 619, £20-622.) Kaolin. 

Mineralogy. Tonnage estimated. Index and geologic maps. Use: Firebrick. Possible use: Source of alumina, refractories.

43. Latah County. [Miocene. Sec. 16, T. 39 N., R. S W.],east of Moscow. 

Moscow Fire Brick and Clay Products Co., Canfield pit. ( Landes, 1934, 

p. 1073, 1076.) Clay. Use: Face brick, firebrick, flux, pottery, hollow 

tile. Possible use: Chinaware.

44. Latah County. Miocene. [T. 39 N.-, R. 5 W.], 1 mile east of Moscow. 

Near Moscow Fire Brick and Clay Products Co. pit. Analyst, 

R. V. Lundquist. Sample 9. ( Tullis and Laney, 1933, p. 481, 493- 

495.) Clay. Index map. Use: Face brick, firebrick, terra cotta, sewer 

pipe, stoneware, draintile, structural tile, roofing tile.

45-48. Latah County. T. 40 N., R. 2 W., about 3 miles southwest of town of Deary. 

( Hosterman and others, 1960, p. 1-4. 7, 12, 13, ^5, 17, J.9, 21, 29, 37, 

89, 90, 112, 124, pis. 1, 2, 6.) Overburden averages 15.9 ft. Mineralogy. 

Tonnage estimated. Index and geologic maps, geologic sections, correlated 

columnar sections. Log of drill hole. Composite sample, samples taken at 

about 5 ft intervals or where clay showed marked change. Possible use 

[except sample 47]: Source of alumina, refractories, draintile, ceramic 

structural wares.

45. Latah Formation. NWi sec. 18. Drill hole Ol-109. Clay, varicolored-, some beds plastic, some limonite bands; depth 19.3- 

96.6 ft.

46. Latah Formation. SWi sec. 18. Drill hole Ol-106. Clay, varicolored, sandy; depth 12.8-80.9 ft.

47. Miocene. SWi sec. 19. Drill hole Ol-210. Clay, varicolored; 

depth 13.5-17.6 ft. Possible use: Source of alumina, gallium, 

ilmenite.

48. Latah Formation. NWi sec. 20. Drill hole O1-305. Clay, varicolored i some beds sandy, some beds plastic; depth 8.0-47.7 ft.
48 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing more than 75 percent clay (Group D), common- and mixed-rock categories Continued

Chemical analyses Continued 

Idaho Continued

49 52 54 56 57 59 60

11D29-51 11D29-53 11D29-54 11D29-52 11D29-27 11D29-16 11D29-45 11D29-42 11D29-44 11D29-47 11D29-40 11D29-35 11D29-17

SiO, ___________

A1,0S 

Fe,0, __________

Mga ___________

CaO ____________

Na2O ___________

K2O ____________

H,0- _ __ ______

TiO, ___________

CO2 ___________

SOS _ __________

Ignition loss _____ __

58.4 62.0 58.5 48.3 52.7

26.5 23.2 23.8 16.5 21.2

3.2 4.7 6.6 19.9 '14.6

_ __ _ _ _ __ _____ _____ 1.6

_ ____ _ _____ _____ _____ 1.4

4 9.2 4 8.6 4 9.5 4 8.3 8.8

51.02 55.1

25.29 29.1

5.85 3.0

.19 ______

.42 ______

.23 ______

.72 ______

1.65 .8

.112 ______

.43 ______

.099 ___ >._

'.61 ___ __

10.60 4 10.5

64.4 49.5 57.3 58.4 59.73

20.3 26.5 25.7 24.3 29.40

5.6 10.8 4.4 6.0 .87

_ __ _____ _____ _____ .07

_____ _____ _____ _____ .50

__ .0

4 6.0 4 9.6 410.1 4 8.5 9.41

61.8

26.2

1.13

.22

.28

.21

.60

*1.19

9.9

Class.

[98.3] [99.4] [99.4] [96.3] [100.3] [97.22] [98.5] [96.9] [97.8] [98.5] [99.6] 100.0 101.5 

8,89,0 16,83,0 9,89,0 0,91,0 15,65.6 0,93,1 0,97,0 22,74,0 0,90,0 7,91,0 9,89,0 7,92,1 14,85,1

Idaho Continued

Si02 _________

A120, ________

Fe,0s ________

FeO __________

Mga _________

CaO __________

Na,O _________

K,0 _________

H20+ _ _______

H2O- ________ 

TiO, _________

Ignition loss _____

62

11D29-30

__ 58.77

__ 30.28

__ 1.60

34

 ] .08

__ T .88

__ *8.44

63

11D31-1

56.8 

24.8 

5.58

.14 

.87

12.6

64

11D42-2

55.48 

20.83 

7.76 

.15 

3.23 

1.45 

f .40 

{ 2.19 

'(7.47) 

'(7.15) 

.88 

8.18

65

11D42-3

49.55 

17.78 

6.61

3.24 

None

6.88 

15.45 

.58

66

11D44-1

62.1 

24.1

.4

.0 

1.8

11.2

Oregon

67

36D1-54

49.05 

19.66 

7.96

1.17 

2.34 

6.18

.78

1 11.79

68

36D2-1

64.12 

24.33 

2.31

.36 

.34

'.13

8.49

69

36D3-12

54.14 

30.38 

3.90

.28 

.52

'.27 

11.35

70

36D3-19

54.19 

30.41

j 4.21

.25 

.30

11.33

71

36D3-28

64.89 

21.11

4.80

1.13 

2.44

5.13

72

36D3-11

56.5 

22.5 

f 6.0

4.0 

.9

| *1.5

1.0 

7.6

73

36D3-10

49.1 

26.9 

9.5

 1.8

2.5 

10.4

74

36D4-1

63.20 

23.36 

1.86

1.07 

.92

'.34

4.64

Total

Class.

100.39 [100.8] 100.55 100.09 99.6 99.68 100.08 100.84 100.69 99.50 100.0 100.0 95.39 

3,96.1 7,92,2 10,81,2 11,86,0 19,77,3 5,83,1 19,80,1 0.97,2 0,97,1 22,74,0 10,82,1 0,90,0 20,73,0

Oregon Continued

Si02 _______

A1,0S ______

Fe20, ______

Mga _______

CaO ________

Na2O _______

K,0 ________

H,0+ ______

H20- ______

Ti02 __ _____

75

36D4-2

____ 60.90

91 71

____ "6.43

1.99

____ .56

76

36D5-72

60.2

S 9.0

ft / 90 O v

1.80

77

36D5-71

53.9

S 10.3

ft/ 99 A\

1.80

78

36D5-24

63.58

.29

' 13

79

36D5-1

1.16

1.80

.87

B 5.13

B 7.59

.88

Trace

80

36D5-57

.13

'.30

MnO ____

s

Total __

Class75

36D4-2

4.82

96.41

15,79.0

76

36D5-72

7.5

[98.2]

15,81,0

77 78

36D5-71 36D5-24

10.1 8.00

[98.1] 100.60

4,93,0 15,84.1

79

36D5-1

Trace

0.20

".25

100.25

21,73,1

80

36D5-57

S 0.35

.016

13.81

[100.36]

0.87,0

'FeO.

2 Moisture below 100°C. 

'Calculated from reported Fe, P. Mn or Cj. 

4 At 1.000eC;for samples 52, 59, at 950"C. 

5 Mainly alkalies and alkaline earth, 

by difference.

'Not included in total.

T Sample air dried; moisture at 110°C.

'TiO.

'Combined water, ignition.

* Includes FeO.

"CO,.

B Combined water (+105°C) .

"Moisture (-105°C).
ANALYSES OF SAMPLES 49

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho C ontinued

49-52. Latah County. T. 40 N., R. 2 W., about 3 miles southwest of town of Deary. 

( Hosterman and others, 1960, p. 1-4, 12, 13, ^5, 17, 19. 21, 29, 37, 95, 

97, 98, 122, pis. 1, 2, 6.) Overburden averages 15.9 ft. Mineralogy. 

Tonnage estimated. Index and geologic maps, geologic sections, correlated 

columnar sections. Log of drill hole. Composite sample, samples taken 

at 5 ft intervals or where clay showed marked change. Possible use [except 

sample 52]: Source of alumina, refractories, draintile, ceramic structural 

wares.

49. Middle to late Miocene, Utah Formation. NWi sec. 29. Drill hole 

O1-290. Clay, pink-gray, white streaksi some beds plastic; depth 

35.6-45.7 ft.

50. Latah Formation. SEi sec. 30. Drill hole Ol-146. Clay, varicolored 

some beds sandy; some limonite; includes 13 ft bed of sand; depth 

5.4-55.0 ft.

51. Latah Formation. SEi sec. 30. Drill hole Ol-144. Clay, varicolored; 

includes 5 ft bed of sand, 1.9 ft bed of limonite; depth 32.6-62.9 ft.

52. Miocene. SWi sec. 30. Drill hole Ol-134. Clay, yellow and blue; 

depth 16.5-24.0 ft. Possible use: Source of alumina, gallium, 

ilmenite.

53. Latah County. Latah Formation. [T. 40 N., R. 2 W.],west of Deary, railroad cut. Sample 30. ( Skeels, 1920, p. 42, 43.) Clay, white, brown, 

coarse-grained. Physical properties, firing tests. Possible use: Building 

brick, face brick, draintile.

54. Latah County. Latah Formation [implied] . Southwestern part of T. 40 N., 

R. 2 W., and southeastern part of T. 40 N., R. 3 W., about 7 miles 

northeast of town of Troy. Olson deposit. ( Hnbbard, 1956a, p. 2, 11-13, 

pis. 1, 2, 5, table 1.) Deposit: Clay; averages 26 ft thick; overburden 

averages 16 ft thick. Sample: Average composition of entire deposit 

calculated from a composite sample of area. Tonnage estimated. Index 

and geologic maps. Use: Brick. Possible use: Sonrce of alumina. 

55-59. Latah County. T. 40 N., R. 3 W., about 3 miles southwest of Deary.

( Hosterman and others, 1960, p. 1-4, J15-17, Jj), 21, 29. 37, 88, 90, 

110, 120, 121, pis. 1, 2, 6.) Overburden averages 15.9 ft. Mineralogy. 

Tonnage estimated. Index and geologic maps, geologic sections, correlated columnar sections. Log of drill hole. Composite sample, samples 

taken at about 5 ft intervals or where ctay showed marked change. Possible 

use [except sample 59]: Source of alumina, refractories, draintile, 

ceramic structural wares.

55. Latah Formation. Near center sec. 24. Drill hole O1-275. Clay, 

gray, yellow-gray, plastic; depth 12.0-29.3 ft.

56. [Miocene.] NEi sec. 24. Drill hole Ol-204. Clay, yellow, sandy; 

depth 70.0-135.Oft.

57. Latah Formation. NE| sec. 24. Drill hole Ol-281. Clay, varicoloredj 

some beds plastic; depth 15.5-35.9 ft.

58. Latah Formation. SE* sec. 24. Drill hole Ol-105. Clay, varicolored; 

contains 4.5 ft sandy bed; depth 7.4-43.0 ft.

59. Miocene. SE? sec. 24. Drill hole Ol-111. Clay, varicolored; some 

plastic portions; depth 20.0-38.0 ft. Possible use: Source of 

alumina, gallium, ilmenite.

60. Latah County. Latah Formation. South center NW« sec. 34, T. 40 N.,

R. 3 W., 4 miles northeast of Troy. Idaho Fire Brick Co., Linderman pit. 

Collector. Suksdorf. Sample 4. ( Wilson, 1934, p. 14, 63, 68, 73, 74, 

76, 77, 83, 84, 111.) Clay, white; 4-22 ft thick; overburden 5-36 ft. 

Mineralogy. Index and geologic maps, detailed measured section. Physical 

properties, firing tests. Screen analysis. Former use: Firebrick. Possible 

use: Refractories, whiteware.

61. Latah County. Miocene. Near center sec. 31, T. 40 N., R. 5 W., north of 

town of Moscow. Aberdeen Clay and Color Co., Rogers deposit. Analyst 

R. V. Lundquist; collector, V. E. Scheid. Sample 10. ( Tullis and Laney, 

1933, p. 481, 493-495; Hubbard, 1956a, p. j>-7. pis. 1-3, table 1.) Clay v 

white; 12-15 ft thick; overburden 5-15 ft. Tonnage estimated. Index and 

geologic maps. Use: Face brick, firebrick, terra cotta, sewer pipe, stoneware, draintile, roofing tile, structural tile.

62. Latah County. Latah Formation. [Sec. 31, T. 42 N., R. 4 W.],near town 

of Potlatch. Analyst, W. R. Bloor. Sample 93. ( Shedd, 1910, p. 222, 

223, 224, 307, 320, 321; Wilson, 1934. p. 14, 63. 69, 94, 96.) Clay, 

white, plastic; 15 ft thick; overburden 8-10 ft. Microscopic description. 

Index and geologic maps. Physical properties, firing tests. Former use: 

Brick, stoneware.

63. Lewis County. Latah Formation. NE$ sec. 6, T. 33 N., R. 2 E., town of 

Nez Perce. Analyst, R. V. Lundquist. Sample 53. ( Scheid and others, 

1951, p. ^9: Hubbard, 1956a, p. 2, 30, _31, pi. IJClay.gray; 8 ft thick; 

overburden 3 ft. Index map. Physical properties, firing tests. Former 

use: Brick.

64. Twin Falls County. [T. 10 S., R. 17 E.], town of Twin Falls. Analyst, under 

supervision of O. W. Rees. Sample 8C. ( Grim and Rowland, 1942, p. 

801-J303.) [Clay] so-called beidellite. Mineralogy. Differential thermal 

curve.

65. Twin Falls County. [T. 10 S., R. 17 E.],tunnel near Twin Falls. Analyst, 

J. J. Fahey. Lab. No. D-124. ( Wells, 1937, p. 98; Ross and Hendricks, 

1945, p. 31, 34, 39-46, 55, pi. 3.) Clay, tawny-olive with a little buffpink; in masses 2-14 in. thick. Mineralogy. Ridgway color notation. 

Indices of refraction and birefringence; photomicrograph.

66. Washington County. [T. 11 N., R. 6 W.],10 miles west of town of Weiser. 

Samples 83, 84. ( Skeels, 1920, p. 67, Jt>. 71.) Shale, blue-gray, very 

fine grained; 6 ft exposed. Index map. Physical properties, firing tests. 

Possible use: Brick, sewer pipe, draintile.

67.

68.

70.

71.

74.

75.

78.

80.

Oregon

Baker County. [T. 14 S., R. 44 E.],town of Huntington. Analyst, 

E. P. Henderson. Record C-528. ( Ross. 1926, p. 4, 7, J.O. 11; Wells, 

1937, p. 102.) Glauconite, earthy texture. Thin-section description, 

optical properties. Graphic presentation of analysis.

Benton County. Probably post-middle Miocene. SW» sec. 2, T. 14 S., 

R. 6 W., 8.4 miles by road northwest of town of Monroe. Bystrom ranch. 

Field No. 29. ( Wilson and Treasher, 1938, p. 1, 19, 24, 64, 84, 91.) 

Clay, gray, sandy; some iron stain. Index map. Firing tests. Former 

use: Refractories. Possible use: Structrual ware.

Clackamas County. Probably post-middle Miocene. WjNEi sec. 1, 

T. 6 S., R. 2 E., more than 10 miles by road southeast of town of 

Molalla. Zahar property. Field No. 9B. ( Wilson and Treasher, 1938, 

p. 1, 19, 24, 42, 47, 84.) Clay. Index maps.

Clackamas County. Pliocene or Pleistocene. Sec. 1, T. 6S., R. 2 E., 

near Molalla. Zahar deposit. Sample 3. ( Hodge, 1938f, p. 817, 851- 

853.) General: ' Fine blue plastic clay to coarse kaolinitic 

weathered gravel. Clay, 200 ft thick. Index map. Possible use: 

Refractories.

Clackamas County. NE« sec. 24, T. 2 S., R. 2 E., 1 mile south of town of 

Carver. Stewart deposit. Sample 1. (Hodge, 1938f, p. 817, 848, 849, 

853.) Clay, gray, sandy i and clayey loose sand; about 15 ft thick; overburden 0.5 ft of white clay. Deposit possibly 200 ft thick. Index map. 

Use: Probably none. 

72. 73. Clackamas County. [Sec. 1, T. 6S., R. 2E., near] Molalla. Analyst,

Anthony Centenero; collector, R. L. Nichols. Samples M-l, M-4. ( Pask 

and Davies, 1943, p. 3, 10, 20, 22, 23, 25; Pask and Davies. 1945. p. 57, 

62,73,24,76,78.) Clay. Mineralogy. Thermal analysis curve. 

73. Possible use: Source of alumina.

Clatsop County. Probably post-middle Miocene. [T. 6 N., R. 10 W.],about 

2 miles south of town of Seaside. P. M. West property. Field No. 2. 

(Wilson and Treasher, 1938, p. 1, 19, 24, 33. J34, 88.) Clay, creamcolored, soft. Index map. Firing tests. Former use: Pottery. Possible 

use: Structural ware.

Clatsop County. NW*NWi sec. 4, T. 5 N., R. 10 W., Seaside. P.H. West 

property. Sample 4. ( Hodge, 1938f, p. 842, 843. 848.) Clay, yellowishto grayish-white, plastic; uniform in texture. Overburden. Index map. 

76, 77. Columbia County. Miocene or later. NW^ sec. 16, T. 4 N., R. 2 W., 

about 0.5 mile north of town of Spitzenberg, Alder Creek area. Dietz 

property. ( Kelly, 1947, p. 4, 6, 22, 23, figs. 1, 2.) Silt, dark-red, 

pisolitic. Index and geologic maps, geologic sections.

76. Drill hole 34. Silt, plastic; depth 26.0 ft. Bulk density 2.68.

77. Drill hole 36. Silt, mealy to plastic; depth 11.0 ft. Bulk density 

2.62. [For another analysis from same drill hole, see sample 2, 

group Hai.]

Columbia County. Probably post-middle Miocene. NEi sec. 33, T. 8 N., 

R. 3 W., 6 miles west of town of Rainier. Fransen deposit. Field No. ID. 

(Wilson and Treasher, 1938, p. 1, 19, 24, 27, 29-33, 84-86, 88.) Clay, 

blue-gray and white; inclusions of tan organic matter: channel sample of 

upper 15 ft. Mineralogy. Tonnage estimated. Index maps, detailed 

measured section. Physical properties, firing tests. Former use: Stoneware. Possible use: Refractories.

Columbia County. Tertiary. [T. 7 N., R. 5 W.],about 1.5 miles south of 

town of Clatskanie. Sample 2. ( Schenck, 1927, p. 565-567.) Shale, 

gray, tuffaceous, sandy. Mineralogy. Photomicrograph.

Columbia County. [T. 4N., R. 3 W.],Pearson location. (Hodge, 1935b, 

p. 18.) [Iron-bearing rock.]
50 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing more than "75 percent clay (Group D),common- and mixed-rock categories Continued

Chemical analyses Continued

Oregon Continued

SiO,

Al,0, _ ____

Fe,0, _ __ .

FeO

MgO

CaO

Na,O

K,O

H,0+

H,0-

TiO,

PtO, __ _

MnO

S ^

Cr,O,

ZrO, __ __

Ni

Co

Ag__ __ _ .

Total __

Class _______

SiO, ___ _

Al,0, __ _

Fe,0, 

FeO _____ _ .

MgO _ _. .

CaO _ _ _.

Na,O _ _

K,O _

H,0 _

TiO, _ __

PJ~>_

MnO _ __.

S __ _ 

0,0,- _____

Ni_

CoO_ _ .

Ignition loss

Total .

Class -- -

81

36D5-58

44.86

_ _ 23.57

"20.04

_ _ . .15

.10

'.32

1 .1B

__ . .025

____ 10.76

._ _ [99.98]

___ 0.86.0

*94

36D10-38

_ __ 44.0

__ . 3.7

'28.3

12.5

_ . 1.3

'.09

.44

 .51

1.7

[92.6]

6.78.0

82

36D5-59

46.29 

24.27 

'17.26

.28 

.18

'.22 

'.48 

.019

11.35

[100.35] 

0.88,1

*95

36D15-19

46.96 

18.66

| 10.05

10.60 

8.46

5.62

100.35 

3.79.0

83

36D5-60

67.70 

17.18 

1 12.32

.30 

.16

'.31 

'.17 

.011

2.28

[100.43] 

23.76.0

*96

36D17-37

32.5 

3.8 

f 29.6 

I 1.9 

15.9 

1.5 

.04 

.02 

11.3 

.06 

.02 

.24

1.1 

$1.9 

.04 

'.14

100.1 

0.71.0

*84

36D5-47

34.67 

11.22 

'42.04

.25 

.10

1 .81 

'.75 

.012

10.87

[100.72] 

0.73.1

85 86

36D5-44 36D5-45

55.51 60.36 

22.17 25.02

7 ' 23 } 2.90

1.50 .67 

_ _ _ 1.12

.20

.15

*13.10 9.67

[99.86] 99.74 

8.88.3 13.83,3

*87

36D6-10

34.8 

14.4 

'19.59

3.5 

8.1

r 3.00 

3.1

*Nil(?J

Nil(?) 

9.4 

.87

Nil

2.00

T[98.8 ] 

0.63,0

Oregon Continued

*97

36D17-31

31.5 

3.9 

34.5 

.93 

12.4 

1.4 

.07 

.02 

12.1 

.06 

.02 

.30

1.1 

'2.2 

.04 

».14

100.7 

0,70.0

+98 +99

36D17-32 36D17-33

35.1 21.4 

3.5 4.7 

38.6 49.1 

.12 .20 

4.7 3.3 

.72 .42 

.04 .04 

.02 .04 

13.6 15.9 

.04 .10 

.04 .06 

.46 .44

1.2 2.4 

$ 2.0 *2.0 

.07 .14 

'.18 § .21

100.4 100.4 

0.78.0 0.55.0

*loo

36D17-35

21.4 

9.1 

47.3 

.72 

4.1 

.32 

.10 

.13 

13.4 

.23 

.11 

.28

2.0 

'1.4 

.07 

».21

100.9 

0.52.0

*88

36D8-1

24.2 

6.2 

'42.6

8.6 

3.3

'.41

.03 

2.53

.70 

.06

11.4

[100.0] 

0,49,13

101

36D17-17

65.02 

21.30

I 6.06

.25 

.19

6.61

99.43 

21,78.0

*89 *90

36D8-2 36D9-10

28.2 38.04 

6.4 19.00 

*40.3 8.23

4.6 3.77 

3.2 7.35 

_ _ 12.76

8.50

f 1.50

______ | H

2.44 ___

.74 _ _

.07 _____

10.2 ______

[96.2 ] '99.29 

0.57.9 0,64.2

102 103

36D17-18 36D17-21

66.97 58.58

22 '37 I 31.52 

3.57 fj

.25 1.42 

.10 1.04

6.70 7.21

99.96 99.77 

23,76,0 6.91.0

*91

36D10-28

32.2 

4.9 

38.7 

.45 

7.0 

1.0 

.07 

.02

1 11.9

.08 

.05 

.48

1.1

$ 2.3 

4 .06

'.24

100.6 

0.71,0

104

36D17-22

62.90 

27.42

2.08 

1.28

6.42

100.10 

17,80,0

*92

36D10-29

26.2 

7.3 

46.8 

.29 

2.1 

.24 

.08 

.09

13.3

.20 

.12 

.43

1.3

$ 2.2 

4 .08

'.28

101.0 

0.61,1

105

36D17-23

63.08 

27.94

1.70 

.94

6.02

99.68 

16,81.0

Oregon Continued

SiO, _

Al,0, _

Fe,0,

MgO

CaO

Na,0

K,0

TiO,

PtO, _

MnO

107

36D17-25

64.1

~~ ~ | 27.0

. _ .2

1.2

*108

36D17-29

43.29 

f 12.41 

I 12.31 

14.13 

6.34 

1.18

.11

1.33 

.07

.21

109

36D20-14

58.10 

29.68 

1.76 

.20 

.21

».44

110

36D24- 1

65.10 

22.53 

2.50 

.46 

.65

».25

111 112

36D24-3 36D24-80

57.16 54.86 

29.06 30.38 

3.62 4.36 

.33 .56 

.56 .44

*.17 *.15

CO,

so,

0,0, _

NiO

N

Ignition 

loss __

Total ___ 

Class 

"107 ~

36D17-25

7.6

100.1 

19.79.2

*108 109

36D17-29 36D20-14

.07

2.37

.051 _ _ _

.100 _ _ _

5.96 9.61

[99.93] 100.00 

7,67.0 4,95.1

110

36D24-1

8.08

99.57 

22,75,2

111

36D24-3

9.23

100 . 13 

2,97,2

*93

36D10-30

38.4 

8.4 

31.3 

1.3 

6.8 

.58 

.26 

.24

8.0

.32 

.20 

.49

1.5

$ 1.5 

4 .06

'.17

99.5 

0,77.0

106

36D17-24

63.96

27.28

2.26 

.82

5.85

100.17 

18,79,0

112

36D24-80

9.73

100.48 

0,96.2

'Calculated from reported Fe, 

Fe natural, Mn, or P. 

'P. 

*NiO. 

4CoO. 

s Moisture and loss on ignition.

 CO..

7 Gold found; no platinum found by spectrograph. 

'100.09 percent in text. 

'Cr. 

"TiO.
ANALYSES OF SAMPLES 51

Spectrographic analysis 

[ One determination for 

two samples]

88- 89

Mn ___________

Ti ___________

K ____________

Na ___________

V ____________

. _ 0.1 -1

. _ .01- .1

.1 -1

.__ .01- .1

._- .01-1

Spectrographic analysis

[ Sample from same general area as sample used 

for chemical analysis ]

B

Ti ___ .

V ____ .

Cr ___

Mn ___ .

90

____ <0.001

____ 0.01- .001

____ .01- .001

____ < .001

___ .01- .001

Ni _____

Cu ____

Sr _____

Ba 

90

< 0.001

< .001

0.1- .01

1 - .1

Quantitative specuographic analyses

C Elements looked for but not detected: Y, Rh. Cd, Re, Os, Ir, Pt. 

Results have an accuracy of ± 15 percent]

Sc _____ . v

Cu ___ ,

Sr _____

Ba ___ .

96

_ 0.0042

___ .011

.013

___ <.0002

__ .002

97

0.0054

.012

.0098

< .0002

.002

98

0.0054

.010

.0090

< .0002

.003

99

0.0076

.020

.011

< .0002

.003

100

0.0066

.023

.012

.0010

.006

DESCRIPTIVE NOTES

96-

[Underscored page numbers in reference 

Oregon Continued

81- 83. Columbia County. [T. 4 N.. R. 3 W.] Pearson location. ( Hodge, 1935b. 

p. ,18.) 

81.82. [Iron-bearing rock.] 83. [Clay.]

*84. Columbia County. [T. 4 N., R. 3 W.] Finley location. ( Hodge, 1935b,

p._18.) [Iron-bearing rock.] *Analysis suggests 5.4 percent excess AljOj, 

20.4 percent excess Fe_Os, 1.9 percent phosphate.

85. Columbia County. SW^SW^ sec. 19, T. 5 N., R. 1 W., near town of

St. Helens. Analyst, L. L. Hoagland. (Jacobs, 1950, p. 2, 5.) Clay. 

Firing tests.

86. Columbia County. NEj sec. 33, T. 8 N., R. 3 W., 3 miles from town of 

Mayger. Franzen ranch. Sample 3. ( Hodge, 1938f, p. 817, 839, 841, 

842, 848.) Clay, sandy; weathers white. Index maps. Firing tests. Use: 

Stoneware. Possible use: Terra cotta.

*87. Coos County. [Pleistocene or Holocene.] W^ sec. 16, T. 26 S., R. 14 W., 

8.5 miles north of town of Band on, Coos Bay area. Shepard deposit. 

Analyst, under direction of A. C. Rice. ( Hundhausen, 1947, p. 2-4, 7-J12, 

13, figs. 1-3; Zapffe, 1949, p. 47-49, 50, pi. 5.) General: Black sand 

with some layers of gravel; averages 7 ft thick; overburden averages 32.0 ft 

thick; mineralogy. Composite sample. Index and geologic maps, geologic 

sections. Beneficiation tests. Use: Source of chromite. Possible use: 

Source of garnet, magnetite, titanium, gem zircons'. *Analysis shows 9.4 

percent Cr_Oj, 3.1 percent TiOj; suggests 3.9 percent excess A1_O3 , 5.2 

percent excess Fe_Os; MgO and CaO not calculated as carbonate. 

88, 89. Curry County. Sees. 19, 30, T. 37 S., R. 13 W., 17 miles by road east of 

town of Gold Beach. Red Flats nickel deposit. ( Hundhausen and others, 

1954, p. 1, 2, 4, _ll, figs. 1, 2.) [Iron-bearing rock], nickeliferous 

laterite, brick-red. Mineralogy. Index maps. Possible use: Source of 

ferronickel. [For analyses of parent rock, see samples 69, 70, group M.]

*88. ^Analysis shows 2.5 percent Ci£>3 ; suggests 3.7 percent excess A1_O3 . 

25.1 percent excess Fe_O3 , 4.9 percent more MgO and CaO than 

required for carbonate.

*89. ^Analysis shows 2.4 percent CrjOj; suggests 3.2 percent excess A1_O3 , 

20.3 percent excess Fe_O3 , 3.2 percent more MgO and CaO than 

required for carbonate.

*90. Deschutes County. N| sec. 36, T. 16 S.. R. 11 E., near town of Tumalo, 

Laidlaw Burte. Analyst, L.L. Hoagland. Sample P-9205. ( Oregon Dept. 

Geology and Mineral Industries, 1950b, p. 4_1; Mason, 1951, p. 8. 9.) 

Volcanic cinders, red to black; cinders range from fine to more than 6 in. 

in diameter. Index map. Possible use: Concrete blocks, fertilizer, road 

metal. *Analysls shows 21.3 percent alkalies; suggests 2.1 percent excess 

A1_O3 , 10.3 percent more MgO and CaO than required for carbonate. 

91-93. Douglas County. Possibly post-Miocene to Pleistocene. [T. 30 S., R. 6 W.], 

near town of Riddle, Nickel Mountain. Hanna Ore Co. pit. Analysts, 

P. L. D. Elmore, J. I. Dinnin, S. D. Botu, M. D. Mack. ( Hotz. 1964, 

p. 356, 357, 368, 369, 371. 375-377, 393.) General mineralogy. Graphs 

of molecular proportions of constituents. Index map. Use: Source of 

nickel. [For analyses of parent rock, see samples 74, 75, group M.]

*91. Sample3. Lateritic soil, yellowish-orange: depth 5-8 ft. ^Analysis 

shows 2.3 percent NiO, 1.1 percent Cr_O3; suggests 1.9 percent 

excess A1_O3 , 14.9 percent excess FejO., 7.8 percent more MgO 

and CaO than required for carbonate.

*92. Sample 4. Lateritic soil, yellowish-orange; depth 3-5 ft. *Analysis 

shows 2.2 percent NiO, 1.3 percent Cr_O.; suggests 4.4 percent 

excess A1.O., 28.1 percent excess Fe_O3, 2.1 percent more MgO 

and CaO than required for carbonate.

*93. Sample 5. Lateritic soil, red; contains iron oxide pellets; depth 

1-3 ft. ^Analysis shows 1.5 percent Cr.O3 , 1.5 percent NiO, 

1.3 percent FeO; suggests 2.0 percent excess A1.O), 7.3 percent 

excess FejOj, 7.2 percent more MgO and CaO than required for 

carbonate.

*94. Douglas County. [T. 29 or 30 S., R. 6 W.], about 5 miles northwest of

Riddle. Hanna Development Co. Lot F-4. ( Cremer, 1954, p. 2, 5, ji.) 

Nickeliferous iron-bearing rock from surface trench. Mineralogy. Tonnage 

estimated. Possible use: Source of ferronickel. * Analysis shows 1.7 

percent Ni; MgO and CaO not calculated as carbonate.

indicate source of analysis]

Oregon Continued

*95. Jackson County. SiSWi sec. 28, T. 35 S., R. 4 W., north of town of 

Rogue River. Sparks property. Sample 1. ( Hodge, 1938f, p. 817, 

887-889,^91.) Clay. Index maps. *MgO and CaO not calculated as 

carbonate. 

- 100. Josephine County. Possibly post- Miocene to Pleistocene. [T. 38 S.,

R. 8 W., southwest of town of Selma] , Eight Dollar Mountain. Analysts, 

P. L. D. Elmore, J. I. Dinnin, S. D. Bolts, M. D. Mack: spectrographic 

analyst, Sol Berman. ( Hotz, 1964, p. 356, 357, 367-.3J7_2. 373, 374, 

388.) General mineralogy. Graph of molecular proportions of constituents, graph of trace element content. Index map. Use: Probably none. 

[For other analyses of parent rock and weathered product, see samples 

78-80, group M.]

*96. Sample 2. Peridotite, weathered; depth 13.6-17.8 ft. X-ray

diffractometer patterns of clay fractions. *Analysis shows 1.1 

percent Cr_O3 , 1.9 percent FeO, 1.9 percent NiO; suggests 5.6 

percent excess Fe_O3l 17.3 percent more MgO and CaO than 

required for carbonate.

*97. Sample 3. Saprolite, yellowish- brown, granular; greenish and 

black mottling; depth 10.8-13.6 ft. *Analysis shows 2.2 

percent NiO, 1.1 percent Cr_O3 , 0.9 percent FeO; suggests 

1.2 percent excess A1_O3 , 10.8 percent excess FeiO3; 13.8 

percent more MgO and CaO than required for carbonate.

*98. Sample 4. Saprolite, yellowish- brown, granular; greenish and

black mottling; depth 8.2-10.8 ft. X-ray diffractometer patterns of clay fractions. *Analysis shows 2.0 percent NiO, 1.2 

percent Cr^j; suggests 1.0 percent excess A1_O3 , 11.4 percent 

excess Fe_Os, 5.2 percent more MgO and CaO than required 

for carbonate.

*99. Sample 5. Soil, mottled reddish- brown and yellowish- orange with 

some black mottling; depth 5.5-8.2 ft. *Analysis shows 2.4 

percent Cr_O3 , 2.0 percent NiO; suggests 3.1 percent excess 

A1_O3 , 32.6 percent excess FejOj, 3.5 percent more MgO and 

CaO than required for carbonate.

*100. Samples. Soil, red-brown; contains iron oxide pellets and

vegetal material; depth 0-1 ft. X-ray diffractometer patterns 

of clay fractions. *Analysis shows 2.0 percent CrjOj, 1.4 

percent NiO; suggests 6.3 percent excess A1.O., 32.7 percent 

excess Fe_O3 , 4.2 percent more MgO and CaO than required for 

carbonate. 

101, 102. Josephine County. NWi sec. 24, T. 35 S., R. 7 W., near town of Merlin.

Stiewig property. (Hodge, 1938f, p. 817, 889-JS91, 892.) Index maps.

Log of auger hole .

101. Samples. Clay, light- brown; 3 ft thick. Usei Probably none.

102. Sample 2. Clay, gray; 2 ft thick. Possible use: Pottery. 

103- 107. Josephine County. Sec. 19, T. 37 S., R. 6 W., Cheney Creek. Rogue

River Lime Co. Analyst, S.B. Gorbutt. ( WincheU. 1914, p. 14. 15,234, 

fig. 1.) Shale and clay. Index maps. Possible use: Portland cement.

*10B. Josephine County. West corner sec. 26, T. 39 S., R. 8 W., at intersection 

of Sucker Creek and Oregon Cave roads. Sample 9929. ( Robinson and 

others, 1935, p. 8, 12.) Soil, dark-colored, sandy, loamy; depth 0-4in.; 

pH value. ^Analysis shows 2.4 percent Cr_O_. 1.3 percent TiO,, 1.3 

percent alkalies; MgO and CaO not calculated as carbonate. [For analysis 

of parent rock, see sample 62, group M.]

109- 112. Probably post-middle Miocene. ( Wilson and Treasher, 1938, p. 19, 24, 

50, 61, 62, 70, 75-78, 84, 91, 92.) Index maps. Firing tests.

109. Lane County. NWj sec. 16, T. 23 S., R. 3 W., about 18 miles 

south of town of Cottage Grove. Field No. 36 G. Clay, light - 

colored, iron-stained, flintllke, plastic. Possible uses None.

110. Marion County. NEi sec. 23. T. 6 S., R. 1 E., near town of

Scorn Mills, Salem area. Field No. 28. Clay, surface exposure.

111. Marion County. SE« sec. 1, T. 8S., R. 1 W., 8.5 miles south of 

town of Silverton. Salem area, roadcut. Field No. 24. Clay, 

gray, some iron stain, plastic.

112. Marion County. West line, NWjSEi sec. 27, T. 8 S., R. 1 W., 

0.8 mile north of town of Sublimity, Salem area, roadcut. 

Field No. 26. Clay, blue-gray.
52 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing more than 75 percent clay (Group D), common- and mixed rock-categories Continued

Chemical analyses Continued

Oregon Continued

113

36D33-1

Si02 _ __ 58.16

A1203 __________ 15.03

Fe203 _ _ ___ 10.59

MgO __ __ 1.99

CaO ____________ 4.57

Naj.0 _ 2.56

K20 ___ _ ___ ____ 1.68

U f\ f "

Ti02 

PjOj ___________ .43

MnO ___________ ______

S03 _ _ _ _ _ .07

Cr20, ______

CoO ___________ ______

Total ______ 100.37

Class ___________ 20,70,0

114

36D34-25

57.94 

22.76 

'8.72

9 10. 26

[99.68] 

8,92,0

115

36D34-46

55.21 

17.87 

14.75

2.10 

[ 3 4.98

5.09

100.00 

7,86,0

116

36D35-4

50.77 

12.29 

8.71 

Nil 

1.90 

3.67 

( 1.82 

1 1.48 

j 5.29 

\ 12.31 

1.25 

.69 

.08

w .04

100.30 

19,71,0

117 118 119 120

36D35-7 36D35-2 36D35-5 36D35-6 3

49.86 52.11 52.83 50.19 

16.09 15.07 13.52 18.41 

6.53 5.43 9.05 5.67 } 

Nil Trace Nil Nil J 

.83 2.52 1.57 1.20 

2.71 2.24 3.24 2.91

1.74 .40 1.10 1.12 _

.09 .11 .43 .05 _

.08 .09 .07 .05

6 .06 _____ _____ *.04 _

10 Nil "Trace "Trace M Nil

100.21 99.70 99.82 100.18 

14,76,0 19,74,1 19,72,0 11,80,0

Washington

121 122 123 *124 *125

6D36-1 36D36-6 46D3-2 46D4-19 46D4-24

59.41 58.12 54.92 19.68 25.35 

24.77 28.74 18.56 4.64 2.64

f 6.48 '50.64 '36.41 

.54 2.75 j

.68 1.05 1.14 8.86 19.18 

2 5.98 .60 1.34 1.52 1.97 

____ _____ 1.14 ___ _ 

____ _____ 1.76 _____ __ 

4 5.23 5 1.81 S 2.88

____ _____ 1.50 _____ .38

'.053 '.041

.10 '.54 '.57

7 .018 '.027

8 2.41 1.36

_ _ _ _____ 1.31 .98

____ .08

8.53 8.55 "8.04 10.41 11.26

99.91 99.81 100.21 [101.89] [103.13] 

15,76,5 4,93,1 15,77,4 0,42,12 0,55,11

W ashington Continued

126

46D4-6

Si02 _ ___ __ 55.64

A120S _____ _ _ 27.41

Fe203 _______ ___ tt 3.37

MgQ ___________ .76

CaO ___________ .58

K0°~" " 1 Trace

K2O ) 

H2O- ___________ ______

Ti02 _______ _ _ ______

S ______________ ______

Ignition loss ______ 11.29

Total ______ 99.05

Class ___________ 3,93,3

Si02 _ _ ___ __

A1203 

Fe20, ___________________

MgQ.

CaO _____________________

Na20 _ ____ _ _____ __ _

K2O _______ ____________

H20- 

TiO2 ____________________

P205 ____________________

MnO ____________________

CO2 ____________________

S

Cr20, 

Total _______________

Class _ _ _

*127

46D4-35

49.19 

18.44 

11.93 

3.58 

10.05

2.87

96.06 

3,79,0

139

46D17-63

52.18 

26.33 

3.92 

.52 

1.24

*2.62

1.21

12.15

100.17 

1.94,3

'Calculated from reported Fe, Fe (dry) , 

MgCO3 , CaCO3 , P or Mn . 

2 In form of concretions.

*128

46D4-40

34.21 

12.41 

7.41 

2.37 

35.91

7.04

99.35 

4,55,5

140

46D17-64

52.36 

29.14 

3.66 

.19 

1.34

14.56

101.25 

0,97,3

8 S04 '2 .

7 S. 

8 Cr.

*129

46D4-38

54.62 

18.47 

7.63 

3.56 

10.28

2.98

97.54 

13,70,0

130 131 132 133 134 135 136 137 138

46D8-15 46D8-16 46D8-17 46D8-26 46D10-9 46D10-3 46D17-12 46D17-24 46D17-54

45.2 52.6 46.1 50.0 

18.5 20.9 18.4 26.3 

21.4 11.7 19.1 6.07

M12.2 M 11.2 M 13.0 M 12.8

[97.3] [96.4] [96.6] [95.2] 

0,90,0 2,94,0 0,91,0 0,93,0

Washington Continued

141

46D17-23

54.50 

f 34.70

1.33 

1.10

3.00

"5.37

100.00 

0,92,5

142 143 144 *145

46D17-25 46D17-41 46D17-46 46D19-69

59.70 62.80 60.80 31.23 

 . f 23.04 18.44 2.98 

30 - 6 °1 1.14 6.00 '60.89 

.97 .51 1.34 .45 

1.00 .40 3.17 2.09

| ( 2.90 _____ M

_ ___ J ' 84 1 1.32 _____ Ti

4 1.65 4 2.10 _____ V.

__ _____ ( 1T) None Cr

____ _____ '.41 M

_____ _____ n .40 1.85 Zr

2.20 _ _____ _____ M

_____ _____ _____ .07 Ba

_ _ _ _ _ __ _ _ _ None

"5.33 "6.58 "3.29 ______

99.80 B 99.96 99.76 [99.97] 

9,87,4 21,74,1 21,69,0 0,59,0

50.96 60.13 63.90 56.60 52.5 

22.36 | f 19.42 20.46 27.0 

6.52 J 1 5.75 6.42 4.8 

3.62 '.65 1.80 1.03 ______

1.78 '5.03 .88 1.30 _ _ __

7.10 .29 1.81 { ' | "2.4 

4 2.24 _ _ _ 4 .76 4 1.50 ______

.47 1.3

____ .75 _____ _____ ______

"5.70 B4.66 U 6.40 U 9.90 12.0

100.28 [100.61] 100.72 99.82 100.0 

4,84,0 11,78,10 23,73,0 13,80,4 0,96,0

114

Spectrographic results of clay from drill hole 50 

[ Amounts in percent]

1 _________________________ 0.01 - 0.1

____ ____ ____ 1 -10

________________________ .01 - .1

_ _ __ .001- .01

i_ .01 - .1

_ _ __ _ _____ .01 - .1

a ____ ______________ < .001

_ _ _____ ______ .01 - .1

12 Includes FeQ. M At 110°C. 

M Mainly alkalies and alkaline IT TiO2 =0.40 percent. MnO___ 

earth, by difference. (Shedd, 1910, p. 319).

'Alkalies.

4Sample air dried, moisture at 110°C.

'Reported as H2O (-105°C) .

9 At 1,000°-1,000°C, sample air dried.

M C02 .

"Combined water, ignition.

"At 800°C , sample dried at 130°C. 

M CO2 , calculated from reported 

MgCO3 andCaCO3 .

99.76 percent in text.
ANALYSES OF SAMPLES 53

116 - 120.

121.

122.

123.

124, 125.

126.

*127.

128, 129.

Washington

Benton County . [Holocene. T. 8 N., R. 24 E.],town of Prosser.

Prosser Brick and Tile Co. Analyst, W. R. Bloor. Sample 1. ( Shedd, 

1910, p. 230, 231. 307, 318, 319; Glover. 1941, p. 336, 342. 343.) 

Clay, light-gray, plastic. Physical properties, firing tests. Former 

use: Brick. Possible use: Tile.

Chelan County . [Late Cretaceous], underlies Swauk Formation. Sees. 11, 

13, 14, T. 22 N., R. 17 E., 15 miles from town of Dryden. Washington 

Nickel Mining and Alloys Co. property. ( Glover, 1942, p. 4, j>; 

Broughton. 1943, p. 4. 12. ^4-17. pi. 1; Zapffe, 1949. p. 77. 79. 80. 

81, pi. 4.) [Iron- bearing rock] brown, massive; 22 ft bed. Channel 

sample. Tonnage estimated. Index and geologic maps, geologic 

section. Possible use: Alloy steels.

*124. Analysis shows 2.4 percent Cr. 1.3 percent NiO; suggests 35.4 

percent excess Fe2Oj, 3.2 percent excess AljOj, 4.4 percent 

more MgO and CaO than required for carbonate .

*125. Analysis shows 1.4 percent CrjOs; suggests 16.2 percent excess 

FejOj, 1.2 percent excess AljOj; MgO and CaO not calculated 

as carbonate.

Chelan County. [Late Cretaceous and Paleocene], Swauk Formation. 

SWi sec. 23. T. 23 N.. R. 20 E. , near town of Wenatchee. Gladding, 

McBean,and Co., Wenatchee pit. ( Hodge, 1938e, p. 495, 496, 503, 

693-695. JJ97-699. 701.) Clay, gritty. Tonnage estimated. Index and 

geologic maps. Firing tests. Use: Refractories.

Chelan County . Nj sec. 10. SEi sec. 3, T. 27 N.. R. 15 E. Soda 

Springs deposit, Ideal Cement Co . Drill hole 53. ( Danner, 1966, p. 

82. 387-390, 392, 397.) Limestone, light-gray to white, medium to 

coarsely crystalline; interbeds of schist and quartzite; depth 93-128 ft. 

Index and geologic maps. Former use: Cement. *MgO and CaO not 

calculated as carbonate. [For other analyses from same drill hole, see 

samples 292, 293, group B; samples 59, 60, group E; sample 121. 

group FI.]

Chelan County . NWi sec. 14, T. 27 N.. R. 15 E. Rainy Creek deposit. 

Drillhole 54. ( Danner, 1966, p. 82. 387, 393-J396, 397.) Limestone, 

white to gray , medium to coarsely crystalline . Mineralogy . Tonnage 

estimated. Index and geologic maps. Possible use: Portland cement. 

[For other analyses from same drill hole, see samples 294. 295, group 

B; samples 61-63, group E; sample 122, group FI.]

133.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate 

Oregon Continued

Wasco County. [T. IN., R. 13 E.],near town of The Dalles, Rockland 

Ridge. (Schneider, 1888, p.236,237,238,241.) Soil, reddish-brown. 

Mineralogy, physical properties. Chemical analyses of sized fractions 130-132. 

also given. [For analysis of parent rock, see sample 64, group M.]

Washington County. Miocene and Pliocene. NW^SWi sec. 1, T. 2 N., 

R. 3 W., 14 miles north of town of Hillsboro. Hutchison-Nixon properties. Analyst, L. L. Hoagland; spectrographic analyst, E. W. Miller; 

collectors, J. F. Cleaver, L. C. Swanson. Drill hole 50, sample 1. 

( Libbey and others. 1945, p. 1, 4, 5. 20, 24, 32-J34. 35-38.) Clay, 

red, few oolites; depth 20-24 ft; overburden 20 ft. Tonnage estimated. 

Index maps, geologic sections, detailed measured section. [For other 

analyses from same drill hole, see sample 45, group Ha; samples 23-25, 

grrup Hb; samples 47-49, group Hbi.]

Washington County. [T. 1 N., Rs. 3, 4 W.],town of Forest Grove.

Forest Grove Stone Co. quarries. Analyst, A. R. Sweetser. ( Day, 1899, 

p. 434.) Sandstone. Bulk density 2.35.

Wheeler County. Late Oligocene and early Miocene, John Day Formation. 

North of town of Mitchell. ( Hay, 1963, p. 200, 234. 235. figs. 2, 4, 

5, 8.) Mineralogy. Index and geologic maps, geologic sections, 

correlated columnar sections. 

116, 117. Sec. 36. T. 10 S., R. 20 E. Claystone, yellow.

116. Analyst. H. Asari. Sample 20.

117. Analyst, W. H. Herdsman. Sample 17. Thinsection description. 

118, 119. T. 10 S., R. 21 E. Analyst, H. Asari. Claystone. yellow.

118. Center NjSWi sec. 31. Sample 9.

119. NW?SW$ sec. 31. Sample 19. 

120. NE* sec. 1, T. 11 S., R. 20 E. Analyst, W. H. Herdsman.

Sample 18. Claystone, pale yellowish-green. 

Yamhill County. Oligocene. Sec. 36, T. 5 S., R. 7 W., sec. 1, 

T. 6 S., R. 7 W. Willamina Clay Products Co. Sample 1. ( Hodge, 

I938f, p. 817-820, 823, 825, 826, 848.) Clay. Tonnage estimated. 

Index maps. Physical properties, firing tests. Use: Face brick, 

refractories, tile. Possible use: Pottery, stoneware. 

Yamhill County. [T. 4 S., R. 5 W.],about 9 miles southwest of town 

of McMinnville, Peavine Ridge. Willamina Clay Products Co. Sample 

2. ( Hodge, 1938f, p. 817, 838, 848.) Clay, white-, part buff colored, 

plastic; overburden. Index map. Former use: Stoneware.

134.

135.

136,137.

138.

139.

140.

141,142.

143.

144.

*145.

source of analysis]

W ashington Continued

*128. Depth 128-149 ft. *MgO and CaO not calculated as carbonate.

*129. Depth 61-110 ft. *MgO and CaO not calculated as carbonate. 

Cowlitz County. Tertiary. SEi sec. 17, T. ION., R. 1W., about 6.5 

miles northeast of town of Castle Rock. Cowlitz deposit. ( Popoff, 1955, 

p. 1-5, 7, 11, 12, 15-18,^5.) Clay, yellow-gray; contains pebbles 

or concretions; thick overburden. Mineralogy. Tonnage estimated. 

Index and geologic maps. Log of drill hole 1. Use: Refractories.

130. Depth 65. 5- 72. 5 ft.

131. Depth 60.0-65.5 ft.

132. Depth 55. 5-60.0 ft.

Cowlitz County. Tertiary. SEi sec. 18, T. ION., R. 1 W., about 6.5 

miles northeast of Castle Rock. Cowlitz deposit. ( Popoff, 1955, p. 1-5, 

7, 11-16, 18, 19, 36.) Clay, gray-blue, gritty; contains pebbles; depth 

29. 7- 37. 2 ft. Mineralogy. Tonnage estimated. Index and geologic 

maps, geologic sections. Log of drill hole 4. Use: Refractories. Possible 

use: Source of alumina [implied] . [For other analyses from same drill 

hole, see samples 70, 71, group Hk; samples 53-61, group Ha.]

Ferry County. Pleistocene. [T. 40 N., R. 36 E.],near town of Laurier. 

Richardson property, terrace beds. Analyst, W. R. Bloor. Sample 8. 

{ Shedd, 1910, p. 307. 318, 319; Glover, 1941. p. 88, 342, 343.) 

Clay. Possible use: Slip for glaze.

Ferry County. [T. 36 N., R. 32 E.],a few miles west of town of Republic. 

Analyst, A. H. Cederberg. ( Landes, 1905 [1906], p. 381; Shedd, 1910, 

p. 318, 319; Glover, 1941, p. 336, 343.) Clay. Possible use: Brick, 

cement, structural ware.

King County. Eocene and Oligocene, Puget Group. Gladding, McBean.and 

Co. mine. Analyst, W. R. Bloor. ( Glover, 1941, p. 122, 128, 344, 

345.) Measured section. Physical properties, firing tests. Use: Sewer 

pipe.

136. NEi sec. 26, T. 21 N., R. 6 E., town of Kummer. Sample 12. 

( Shedd, 1910, p. 256, 257, 260, 261. 307, 319.) Clay, lightgray, plastic, fine-grained; contains very fine particles of grit. 

Mineralogy. Microscopic description.

137. [Sec. 3, T. 22 N., R. 7 E.],town of Taylor. Sample 22. ( Shedd, 

1910, p. 263, 264, 267, 319; Wilson, 1934, p. JHJ-100.) Shale. 

Use: Brick, flue lining, roofing tile. Possible use: China, 

ceramic ware. 

King County. Puget Group. SjSEi sec. 32, T. 24 N., R. 6 E., about

7 miles east of town of Renton. Gladding, McBean, and Co. , Harris

clay mine. Analyst, Anthony Centenero; collector, R. L. Nichols.

Sample H-l. ( Glover, 1941, p. 119, 120; Pask and Davies, 1943,

p. 3, 10, 20, 22, 23, 25; Pask and Davies, 1945, p. 57, 62, 73, J74,

76, 78.) Clay. Mineralogy. Thermal analysis curve. Possible use:

Source of alumina . 

County, locality as in sample 138. [Puget Group.] Analyst, H. R. Shell.

( Speil and others, 1945, p. 31, 32.) Kaolin. Mineralogy. Thermal

analysis curve. 

King County. Puget Group. Sj sec. 32, T. 24 N., R. 6 E., 3.3 miles

from town of Issaquah. Gladding, McBean, and Co., Harris mine.

( Hodge, I938e, p. 761, J762-769.) Clay, dark, semiplastic, massive;

some fine sandy layers. Tonnage estimated. Index map, geologic section,

columnar section. Firing tests. Use: Refractories. 

King County. Puget Group. [T. 24 N., Rs. 10, 11 E.] . Taylor. Gladding,

McBean, and Co. mine. Samples 69, 70. (Glover. 1941, p. 122, 344,

345.) Shale. Use: Sewer pipe. 

King County. Miocene, Hammer Bluff Formation . SE* sec. 28, T. 21 N.,

R. 6 E., 10 miles east of town of Auburn. Gladding, McBean, and Co.

Analyst, W. R. Bloor. Sample 23. (Shedd, 1910, p. 269. 270.

307,318,3^9,321; Glover, 1941, p. 137-139, 342, 343.) Clay,

light-gray, plastic, very fine grained; 9 ft thick in pit; overburden.

Generalized geologic section, measured section. Physical properties,

firing tests. Use: Stoneware. Possible use: Terra cotta, pottery,

structural ware. 

King County . Pleistocene. [T. 24 N., Rs. 3, 4E.], south part of town of

Seattle. Seattle Brick and Tile Co. Analyst, W. R. Bloor. Sample 27.

( Shedd, 1910, p. 239-J341. 243, 307, 318, 319; Glover. 1941. p. 51,

338, 344, 345.) Clay; blue when wet; gray when dry; shaly, plastic;

weathers yellow; 20 ft exposed. Physical properties, firing tests. Use:

Brick, tile. 

Kittitas County . [ Late Cretaceous] , underlies Swauk Formation.

Sees. 26, 34, 35, T. 23 N., R. 14 E., and sees. 1, 2, T. 22 N.,

R. 14 E. , 16 miles from Lakeside railroad station. Iron Chancellor

claim. Analyst, J. A. Dodge. Sample D,. ( Jenkins and Cooper,

1922, p. 73. 81, J32, pi. 1.) [Iron- bearing rock.] Tonnage

estimated. Index map. ^Analysis shows 1.8 percent MnO; suggests

35.2 percent excess FejOSt 1.7 percent excess AlzOs; MgO and CaO

not calculated as carbonate.
54 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing more than 75 percent clay (Group D), common- and mixed-rock categories Continued

Chemical analyses Continued

Washington Continued

SiO.

A1,0S 

Fep, ______________________

MgQ ________________________

CaO

NazO _______________________

Kp

HO+

H.OTiOj _______________________

P-O

MnQ ________________________

S ____________________ ____

Cu _________________________

Total __________________

Class _______________________

146

46D19-1

. ____ 58.20

. ____ 23.83

. ____ 4.61

. _____ 1.40

. ____ .67

V O . 10

. ____ T 1.28

. ____ *6.42

, ____ 99.62

.__ 11.83,0

*147

46D19-70

35.65

*49.78 

.19 

2.96

*1.95 

*8.66 

.02 

Trace

[99.21] 

0,68,0

148

46D19-5

52.95 

15.69 

11.85 

2.04 

4.40 

f 2.09 

\ 1.11 

*4.01 

'2.19 

2.57 

.19

.63 

"None

99.72 

12,75,0

149

46D21-2

55.82 

19.43 

2.38 

.46 

1.13 

.95 

.80

T 7.72 

1.15

2.04

*7.82

"99.70 

19.73,3

150

46D21-3

59.86 

19.43 

5.15 

1.70 

1.40 

.32 

.38

T 2.78 

1.15

.61

*6.48

99.26 

20.74,1

151

46D21-7

60.10 

16.61 

8.55 

1.29 

1.43 

'.80 

*1.18

T 3.04 

.98

*6.60

100.58 

21,74,1

152

46D21-6

54.83 

21.25 

7.00 

1.04 

.80 

4 .69 

4 .36

T 5.30 

1.06

*7.62

99.95 

9,86.1

153

46D22-1

60.52 

19.37 

5.95 

1.65 

1.94

| 1.99

T 4.02

*4.74

100 . 18 

20,75.0

154

46D23-1

60.58 

18.42 

7.90 

1.53 

8.16

*1.83

'1.81

100.23 

19,71,0

155 156

46D40-15946D40-158

59.48 

18.24 

6.92 

3.62 

2.95 

f 2.21 

1 1.95

5.26

100.63 

19,71,0

58.48 

J17.92 

6.76 

2.95 

5.26 

1.98 

1.10

4.26

'98.71 

19,68,0

Washington Continued

SiO»

Al,0, 

Fe.0, ______________________

MgQ ________________ _

CaO ________________________

K,0 

HP- ______________________

TiOj _______________________

SO, 

Ignition loss ___________________

Total __________________

Class __ __________________

157

46D40-157

19 42

____ 8.82

1 34

____ .66

, ____ 1.01

, ____ 3.10

. ____ 99.59

, ____ 14,76,0

158

46D40-161

57.68 

15.74 

8.14 

3.75 

5.77 

1.41 

1.32

6.17

99.98 

21,67,0

159

46D25-25

60.26 

19.08 

8.48 

1.93 

.67 

.46 

1.90 .

7.40

[100.18] 

17,77,1

160

46D26-1

59.32 

20.04 

5.76 

2.33 

1.54

\ 5.05 

T 1.64

*3.76

99.50 

17,73.0

161

46D26-4

61.58 

20.29 

5.95 

2.30 

1.34

2.01 

T 1.94

*4.14

99.55 

19,75,0

162

46D26-33

63.28 

18.64 

7.52 

3.16 

1.97 

f fi 1.07 

\ 1.70

2.26

99.60 

22,70,0

163

46D26-32

62.96 

18.82 

7.35 

3.62 

2.00

3.00

97.75 

21,71,0

164

46D26-3

57.53 

| 28.37

4.50 

1.88

[92.28] 

10,83,1

165

46D26-29

54.10 

32.38

.86 

7.03

[94.37] 

0,92,0

166

46D26"-31

60.80 

26.20

3.15 

9.74

[99.89] 

17,70,0

167

46D26-13

65.60 

27.12

6.16

[98.88] 

20,74,0

Washington Continued

SiOj __ _ _____________

Alp, 

Fep, ____________________

MgQ _________________

CaO __________________ __

Nap ___________ __ _

Kp __________________ __

Hp- ___

S ________

Ignition loss ___________________

Total __________________

Class ______ ______________

168

46D26-30

____ 22.15

____ 2.03

____ 1.42

____ 1.75

169

46D26-66

44.16 

B 19.63 

6.09 

2.15 

13.06

14.36

99.45 

3,74,18

170

46D26-54

54.88 

20.08 

7.57 

3.08 

3.98

8.61

"98.20 

11,79,4

171

46D27-1

58.40 

19.57 

5.20 

1.83 

4.66

[ *3.92

100.03 

18,72.0

172

46D28-8

59.40 

19.58 

6.44 

4.13 

4.26

1 .75

4.38

99.35 

18,72,0

173

46D28-6

55.81 

[ -26.28

*1.62 

*2.43

| 3.98

6.11 

Trace 

n 3.68

[99.91] 

12,76.8

174

46D28-5

56.35

- 24. 62

*1.23 

Z 2.05

3.94

7.52 

.31 

n 2.96

[98.98] 

15,74,6

175

46D28-9

59.92 

f 21.08 

\ 4.56 

2.90 

3.88 

f .97 

I 1.16

4.74

99.21 

18.73,0

176

46D29-56

57.06 

16.16 

8.30 

3.20 

5.96

| 2.22

 G.22

99.12 

19,69,0

177

46D29-64

54.18 

18.05 

9.91 

4.51 

4.17 

f 1.04 

\ 1.17

"6.98

100.01 

11,79,0

178

46D29-61

58.75 

1*25.94

Z 2.14 

*2.61

| 1.48 

*4.60

B 4.38

[99.90] 

15,74,9

1 AlrO,= 17.29 percent, total=98.69 percent 

(Shedd, 1913,p. 248).

1 Calculated from reported Fe(iron) , 

MgCO,.CaCO,, P or Mn.

*NaiO = 1.18 percent, KjO=0.80 percent 

(Shedd. 1910, p. 319).

4 NaiO=0.36 percent, KZO=0.69 percent 

(Shedd, 1910, p. 319).

5 At redness.

'Above ne'e.

T Sample air dried; moisture at 110°C.

s At 110°C.

'Combined water; ignition.

"CD,.

11 100.00 percent in text.

B Na-O=0.70 percent (Shedd. 1913, p. 248).

B A1-O,= 19.06 percent (Shedd, 1913, p. 250).

M Iron and aluminum oxides.

"Alkalies.

"Combined water.

I7CO2 , calculated from reported MgCOj 

and CaCOj.

* Combined water, ignition; sample air dried.

"ignition loss=7.61 percent, total=97.21 percent 

(Shedd, 1913, p. 248).
ANALYSES OF SAMPLES 55

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

146. Kittitas County. Eocene, Roslyn Formation. [T. 20 N., R. 15 E.],town 

of Roslyn. Analyst, W. R. Bloor. Sample 28. ( Shedd, 1910, p. 318, 

319; Glover, 1941, p. 164, 344, 345.) General: Shale varies from gray 

to almost black; fine grained, grading into coarser sandy phases.

*147. Kittitas County. [Ts. 19, 20 N., R. 13 E.],south of town of Easton, Big

Creek district. Analyst,!. A. Dodge. Sample Nj. (Jenkins and Cooper, 

1922, p. 86.) [Iron-bearing rock.] ^Analysis shows 8.7 percent MnO; 

suggests 4.6 percent phosphate, 18.2 percent excess FejOs; CaO and 

MgO not calculated as carbonate.

148. Kittitas County. [Probably T. 26 N., R. 30 E.],Hanson Creek. Analyst, 

George Steiger. Record 2028. ( Clarke, 1904. p. 370; Calkins, 1905. 

p. 47.) Soil, residual. [For analysis of similar parent material, see 

sample 87, group M.]

149,150. Lewis County. Pleistocene, Willapa Clays. [Sec. 33, T. 11 N., R. 2 W.]f 

a little east of town of Sopenah. Little Falls Fire Clay Co. Analyst, 

W. R. Bloor. Samples 30, 31. ( Shedd, 1910, p. 294, 295. 296, 307, 

318, 319; Glover, 1941, p. 184, 185. 338. 344, 345.) Physical 

properties, firing tests. Use: Brick, sewer pipe, draintile.

149. Clay, light-yellow, plastic. Possible use: Structural ware.

150. Clay, light-gray, fine-grained.

151.152. Lewis County. [Holocene. NW* T. 14 N., R. 2 W.]ttown of Centralia. 

Wingard Brothers Brick Yard. Analyst, W. R. Bloor. Samples 32, 33. 

(Shedd, 1910, p. 298,^99, 307, 318, J319.) Clay, fine-grained, 

plastic. Physical properties, firing tests. Use: Brick, draintile.

151. Clay, light-yellow. 152. Clay, dark-yellow.

153. Lincoln County. [T. 25 N., R. 38 E.],Mondovi railroad station.

H. T. Ahrens property. Analyst, W. R. Bloor. Sample 34. ( Shedd, 

1910, p. 219, 220. 307, 318, 319; Glover, 1941. p. 338, 346, 347.) 

Clay, light-brown, plastic, very little grit. Physical properties, firing 

tests. Use: Brick, tile.

154. Mason County. Sec. 31, T. 23 N., R. 3 W., Lilliwaup Falls. Lilliwaup 

Stone quarry, abandoned. Analyst, R. W. Thatcher. (Shedd, 1903, 

p. 49-51, 134, 136, 138, JU1.) General: Andesitic tuff, dark-gray, 

fine- to coarse-grained; from a few inches to 4 ft thick. Bulk density 

2.726. Mineralogy. Physical properties. Use: Dimension stone 

[implied].

155, 156. Okanogan County. Pleistocene. T. 35 N., R. 25 E., near town of

Riverside, Scotch Creek basin. Analyst, A. A. Hammer. Samples 5, 6. 

( Shedd. 1913. p. 167, 168. 169. 248, pi. 21; Glover, 1941, p. 192, 

193, 346, 347.) Clay, blue, plastic, some grit. Index maps. Possible 

use: Portland cement.

155. Sec. 25. Hess property.

157. County, age, analyst, references,and use as in samples 155, 156.

[T. 35 N., R. 25 E.],near town of Conconully. Pendergass property. 

Sample 7. Clay, earthy, plastic, gritty. Index map.

158. County, age, analyst, references,and use as in samples 155, 156.

[T. 39 N.. R. 29 E.], 1 mile east of town of Havilla. Sample 3. Clay, 

light-yellow, fine-grained, free from grit, plastic. Index map.

159. Pacific County. Miocene, Astoria Formation. SE4 SE.l sec. 20, T. ION., 

R. 10 W. Bear River deposit. ( Danner, 1966, p. 82, 431, 433.) 

Shale, sample taken across 12 ft. Index and geologic maps.

160. Pend Oreille County. Pleistocene. [T. 31 N., R. 46 E.],southeast of

town of Newport. Analyst, W. R. Bloor. Sample 81. (Shedd, 1910, p. 

212, 213, 307, 320, 321; Glover, 1941, p. 201, 205, 346, 347.) 

Clay, yellow, plastic, stratified. Physical properties, firing tests.

161. Pend Oreille County. Pleistocene. T. 38 N., R. 43 E., near town of

Portland. Pacific Portland Cement Co. Analyst, W. R. Bloor. Sample 

80. ( Shedd. 1910, p. 214. 215. 307, 320, 321; Shedd, 1913, p. 180, 

182, 186, 187. pi. 21; Glover. 1941, p. 201, 346, 347.) Clay; 

yellow or buff at surface, blue at depth; fine grained; plastic; some grit;

Washington Continued

50 ft thick. Mineralogy. Index maps. Physical properties, firing tests; 

microscopic description. Use: Brick. Possible use: Portland cement.

162- 167. Pend Oreille County. Pleistocene. T. 38 N., R. 43 E., near town of

Cement. Jordan property. ( Shedd, 1913, p. 180, 187. 188, 248, pi. 21; 

Glover, 1941, p. 201, 346i 347.) Index maps.

162, 163. Analyst, A. A. Hammer. Possible use: Portland cement.

162. Railroad cut. Sample 10. Clay, yellowish, earthy, 

stratified.

163. Sample 11. Clay, yellowish-brown, massive, finegrained, plastic; some grit.

164, 165. Clay, blue, fine-grained, plastic; some grit.

164. Analyst, C. M. Fassett. Sample 13.

165. Analyst, O. P. Moore. Sample 23.

166, 167. Analyst, O. P. Moore. Samples 24, 25. Clay, buff, finegrained, plastic; some grit.

168. County, locality, and maps as in samples 162-167. Analyst, A. A. Hammer. 

Sample 7. ( Shedd. 1913, p. 180. 186, 250. pi. 21.) shale, very light 

gray, finely laminated. Possible use: Portland cement.

169, 170. Pend Oreille County. T. 39 N., R. 43 E., town of Metaline Falls. 

Analyst, A. A. Hammer. Samples 5, 8. Index maps.

169. Sullivan Creek. (Shedd, 1913, p. 180, J193, ^50, pi. 21.) 

Shale, light-colored, fine-grained, stratified.

170. (Shedd, 1913. p. 180, 189, 190. 248, pi. 21.) Clay, buff, fine; 

some sand; 12-15 ft thick. Use: Portland cement.

171. Pierce County. Pleistocene. [T. 21 N., R. 2 E.],Gig Harbor. Sample 2. 

(Geijsbeek, 1911, p. 753. 755. 763. 764.) General: Clay, blue; 

intermixed with gravel. Index map. Use: Brick.

172. San Juan County. Pleistocene. [T. 35 N., R. 2 W.], Lopez Island, 3.5 

miles north of town of Lopez. Analyst, A. A. Hammer. (Shedd, 1910, 

p. 290; Glover. 1941. p. 217, 339, 348, 349.) Clay; light gray when 

dry; light blue when wet; fairly plastic; few sandy layers; 30 ft thick. 

Possible use: Brick, draintile.

173,174. San Juan County. Pleistocene. [T. 36 N., R. 4 W.],town of Roche Harbor. 

Samples 4, 5. ( Landes, 1905 [1906], p. ^78; Glover, 1941, p. 217. 

339, 348, 349.) Clay, interstratified with sand; free from grit; some beds 

at least 40 ft thick. Firing tests. Possible use: Cement, brick and 

related ware.

174. Analyst, F. C. Newton.

175. San Juan County. Pleistocene. Sec. 21, T. 37 N., R. 1 W., Orcas Island, 

East Sound. Old brick yard pit. Analyst, A. A. Hammer. Sample 46. 

( Shedd, 1913, p. 206. 249, pi. 21; McLellan, 1927, p. J.70; Glover, 

1941, p. 217, 348, 349.) Clay, light-gray with a slightly yellowish 

tinge; fine grained; some grit; plastic; at least 20 ft thick. Index and 

geologic maps, geologic sections. Former use: Brick. Possible use: 

Portland cement.

176. Skagit County. Pleistocene. [T. 35 N., R. 8 E.],town of Concrete.

Washington Portland Cement Co. pit. Analyst, R. M. White. Sample 48. 

( Shedd. 1910, p. 282, 283. 320. 321; Glover. 1941. p. 218. 220. 348, 

349.) General: Clay; gray when dry; light blue when wet; some layers 

plastic, some sandy. Use: Brick, Portland cement, tile.

177. Skagit County. Pleistocene. [T. 35 N., R. 8 E.],near Concrete. Analyst, 

A. A. Hammer. Sample 49. ( Shedd, 1910. p. 283, 307, 320, 321; 

Shedd, 1913, p. 226, 227, 249. pi. 21; Glover. 1941, p. 220, 339, 

348, 349.) Clay, light-gray, very fine grained. Index map. Possible 

use: Portland cement.

178. Skagit County. Pleistocene. [NEj T. 35 N.. R. 8 E.],near Concrete. 

Washington Portland Cement Co. Analyst, C. W. Johnson. Samples. 

( Landes, 1905 [1906], p. 380; Shedd, 1910, p. 282. 283. 320. 321; 

Glover, 1941. p. 218. 220, 348. 349.) Clay; gray when dry; light blue 

when wet; stratified; some layers plastic, some sandy; average thickness 

165 ft. Use: Brick, portland cement, tile.
56 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska, Idaho. Oregon, and Washington.containing more than 75 percent clay (Group D). common- and mixed-rock categories Continued

Chemical analyses Continued

Washington-Continued

Si02 _ _____________

A120, _________________

Fe20j ________________

MgO. _________________

CaO __________________

Na20 ___ _ __ __ _

K20 __________________

Ti02 _______ __ ____

D f~\

C02 _________________

s

Class- _____________ .

179

46D29-60

. __________ 55.90

' } '25.50

. __________ 2 1.35

. __________ *2.75

. __________ '6.45

._ _________ [100.00]

___________ 13,75,8

180

46D29-57

57.24 

24.76

4.86 

5.44

[92.30] 

16,72,3

181

46D29-59

57.42 

24.68

4.58 

5.66

[92.34] 

16,72,3

182

46D29-55

56.78 

25.56

4.30 

5.12

[91.76] 

14,75,4

183

46D29-58

57.36 

25.06

4.56 

5.36

[92.34] 

15,73,3

184

46D29-54

56.64 

25.80

4.26 

5.26

[91.96] 

13,75,3

185

46D29-62

56.18 

( 17.37 

I 8.89 

4.14 

4.60 

( 1.76 

\ 1.43

8 5.03

99.40 

15,72,0

186

46D29-66

56.04 

22.56 

8.70 

3.87 

.45

} 3.18

4 .30 

.11

*4.96

100 . 17 

6,86,0

187

46D29-63

49.65 

19.94 

9.27 

6.32 

2.58

3.28 

4 2.15

*5.85

99.04 

4,77,12

188

46D31-3

53.56 

25.26 

8.86 

2.05 

2.66 

( .27 

1 .43

T 6.02

99.11 

0,93,0

*189

46D31-60

46.86 

9.28 

2 24.38 

2.44 

.22

(s)

2 .055

13.52

'[96.76] 

3,81,0

Washington Continued

SiOj _________________

A120, _

Fe20, _

FeO __________________

MgO _________________

CaO __________________

NajO __ ______ .

K20_ _ __ _ __ _ __

H20+ ________________

H20- ________________

Ti02 _________________

MnO _________________

Li20 ________ _ _______

Total _____________

Class

190

46D32-35

47 1

. __________ 22.8

19 7

. __________ 5.8

. __________ "8.7

. [97.1]

. __________ 0,86,0

191

46D32-17

41.63 

8.69 

25.99

.33 

1.78 

.22 

.32 

9.91 

10.67

Trace

99.54 

0,95,1

192

46D32-2

62.34 

24.86

j- 2.13

.04 

.22

.71

7.94

100.80 

16,81,0

193

46D32-1

55.20 

29.25

2.58

.03 

.20 

f 1.29 

I .64

.80

10.20

100 . 19 

1,96,0

194

46D32-41

59.92 

16.65 

| 8.25

3.71 

2.22 

2.02 

2.14

"5.19

100 . 10 

21,69,0

195

46D32-46

40.72 

4.96 

29.57 

.71 

.74 

1.98

6.66 

15.46 

.02

100.82 

0,96,0

196

46D32-49

40.54 

5.19 

31.24 

.39 

.06 

1.92 

.14 

.24 

6.00 

14.75

100.47 

0,95,0

*197

46D32-48

40.50 

5.26 

31.40 

.26 

.04 

1.88 

.25 

.29 

 (6.13)

.0 

.0 

.0 

20.90

[100.8] 

0,80,3

*198

46D32-47

40.42 

5.18 

31.32 

.16 

.00 

1.76 

.17 

.19

.0 

.0 

.0 

20.80

[100.0] 

0,80,3

199

46D32-53

60.08 

28.83 

3.79

1.03 

.76

'(6.03)

6 5. 46

[99.95] 

5,93,0

200

46D32-10

58.13 

19.01 

6.84

3.17 

2.06 

1.51 

2.03

"7.14

99.89 

17,74,1

Washington Continued

SiO2 _________________

A120, _

Fe20, .

FeO __________________

MgQ __________________

CaO __________________

Na2O _________________

K20 __________________

H2O+ ________________

H20- _ __ _ __ _ ____ __

Ti02 _________________

P»O5 __ ___ __ __

MnO __: _______________

Ignition loss _____________

Total ____ _ _______

Class

201

46D32-11

. __________ 59.04

. __________ 25.74

. __________ 5.08

. __________ .06

. __________ .22

.12

. ________ . _ 4 .39

*8.81

. __________ 99.98

8,91,1

202

46D32-12

60.55 

26.37 

2.43

1.20

*8.60

[99.15] 

11,86,2

203

46D32-44

49.48 

16.30 

3.12

4.69 

2.15 

.03 

.36 

9.44 ] 

14.41 j 

.62

.05

100.65 

17.76,0

204

46D32-45

46.06 

12.22 

18.54 

.28

1.62 

1.66

[ 17.26 

.84

98.48 

4,91,3

205

46D41-218

58.15 

16.90 

9.22

3.02 

"2.15 

"1.36

"1.71

4.12

B 96.63 

18,71,0

206

46D4 1-196

57.56 

22.48 

10.40

3.14 

.45

2.78

96.81 

6.87,0

207

46D4 1-180

64.57 

24.95

[ 1.16

.73 

.21

7.08

99.43 

19.78,1

208

46D41-179

65.18 

24.44

2.71

.41 

.36

.87

.52

6.18

100.67 

19,80,0

209

46 D4 1-183

58.06 

29.04 

| 1.82

1.02

1.75

\ *1.18

8 7.56

100.43 

5.93.0

210

46D4 1-181

61.64 

24.20 

2.10

.78 

.30 

| .16 

I 2.38

4 .52

*7.56

100 . 14 

16,79,2

211

46D4 1-185

61.18 

24.96 

8.04

.10 

2.06

[96.34] 

8,90,0

See following page for footnotes.

Semiquantitative spectrographic analyses

[ Analyst for sample P, G.V. Wheeler; analyst for sample S , W. Burkhardt. (a) Element detected; present in too small concentration for spectrochemical determination by procedures employed. (b) Presence not detected; limit of detectability by procedure employed is as yet uncertain]

Li_

Be ____________

B

Sc ____________

V __ ___ ______

Cr ____________

Mn ____________

Ni _____________

196

P S

________ _____ a<0.09

________ _____ <.0005

________ _____ <.006

 (b)

________ _____ .005

________ _____ <.0007

_________ 0.002 .04

_________ ______ <.001

Co ________

Cu _______

Zn __,

Ga ________

Rb ________

Sr ________

Y_

196

P S

_____________ ______ <0.001

_ . ___________ 0.002 .0004

___ _ <.03

_____________ ______ <.001

_ ___ _ , _____ ______ <.01

_____________ .007 a<.03

_____________ ______ <.005

Zr ___________ .

Mo __________ .

Ag .

Cs __________ .

Ba _________ .

Tl __________ .

Pb______ .

P

. ________ 0.005

.007

. ________ .02

196

S

0.009

 £.003

 i.OOOl

(b)

a<.04

<. 00003

<.02
ANALYSES OF SAMPLES 57

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

179. Skagit County. Pleistocene. [T. 35 N., R. 8 £.], near town of Concrete. 

Washington Portland Cement Co. Analyst, F. C. Newton. Sample 4. 

( Landes. 1905 [1906], p. 380; Shedd, 1910, p. 282, 283. 320, 321; 

Glover, 1941, p. 218, 220, 348, 349.) Clay; gray when dry; light blue 

when wet; stratified; some layers plastic, some sandy; average thickness 

165 ft. Use: Brick, portland cement, tile.

180-184. County, age, and locality as in sample 179. Analyst, R.M. White. Samples 

52-56. ( Shedd, 1913, p. 222, 249. pi. 21; Glover, 1941, p. 339, 348, 

349.) Deposit: Clay, light-gray, stratified; some sandy layers; about 30 

ft thick. Index map. Use: Portland cement.

185. Skagit County. Pleistocene. [T. 35 N., R. 9 E.], 1 mile north of town of 

Sauk. Analyst, A. A. Hammer. Sample 50. ( Shedd, 1910, p. 283, 

320, 321; Shedd, 1913, p. 228, 229, 249. pi. 21; Glover, 1941, p. 348, 

349.) Clay; light gray when dry; bluish when wet; very fine grained, no 

grit; stratified; uniform; more than 40 ft thick. Index map. Possible use: 

Portland cement.

186. Skagit County. [Ek T. 36 N., R. 4 E.], town of Prairie. M. M. Clothier 

property. Analyst, W. R. Bloor. Sample 47. ( Shedd, 1910, p. 307, 

320, 321.) Clay.

187. Skagit County. Holocene. [Sec. 7, T. 36 N., R. 4 E.], town of Alger. 

Bellingham Brick and Tile Co. Analyst, W. H. Fuller. Sample 46. 

( Shedd, 1910, p. 280-282, 307, 320, 321; Glover, 1941, p. 222, 223, 

348,349.) Clay, blue-gray; deposit at least 100 ft thick. Physical 

properties, firing tests. Use: Brick, tile.

188. Snohomish County. Pleistocene. [T. 27 N., R. 10 E.], about 2 miles up 

river from town of Index. Analyst, A. A. Hammer. Sample 60. ( Shedd, 

1913, p. 233,234,250; Glover, 1941, p. 225,348,349.) Clay; blue when 

wet; light gray when dry; very fine grained, uniform; finely stratified; at 

least 15 ft thick. Possible use: Portland cement, structural ware. 

*189. Snohomish County. NEa sec. 36, T. 29 N., R. 8 E., 15 miles northeast of 

town of Sultan. Lockwood Pyrite deposit. Sample 5. ( Zapffe, 1949, 

p. 37, 39, 40.) [Iron-bearing rock], contains pyrrhotite and pyrite. 

Mineralogy. Tonnage estimated. Possible use: Source of iron, sulfuric 

acid. * Analysis shows 13.5 percent S; MgO and CaO not calculated as 

carbonate.

190. Spokane County. Miocene. NW| sec. 22, T. 24 N., R. 44 E.. about 11 

miles southeast of town of Spokane. Drill hole M-77. ( Hosterman and 

others, 1960, p. 2-4, 12-15, 20, 25, 26, 37, 62, pi. 3.) Clay, blue, 

yellow; depth 5.0-18.0 ft; overburden averages 21.4 ft. Weighted composite sample; samples taken at about 5-foot intervals or where clay showed 

a marked change. Mineralogy. Bulk density averages 1.64. Tonnage 

estimated. Index and geologic maps, geologic sections. Possible use: 

Source of alumina, ilmenite, gallium.

191. Spokane County. Miocene. SEiSE? sec. 16, T. 24 N., R. 44 E., about 

12 miles southeast of Spokane. Excelsior clay deposit. Analyst, 

I. Husted; collectors, V. T. Alien, V. E. Scheid. ( Scheid and others, 

1945, p. 2, 16, 20, 21, pi. 1, fig. 1.) General: Nontronite; veins of 

yellow-green clay. Index and geologic maps. Optical properties; 

photomicrograph.

192, 193. Spokane County. Probably Miocene. Sec. 23, T. 24 N., R. 44 E., near 

town of Mica. Gladding, McBean, and Co. (Hodge, 1938e, p. 495, 

496, 503. 510, 516, 517, 526-529, 531-_533, 534, 535, 537.) Overburden. 

Channel sample. Mineralogy. Tonnage estimated. Index and geologic 

maps; detailed measured section.

192. Clay, white and light-gray, plastic, some micaceous sand; average 

thickness 12 ft. Use: Refractory cement, sewer pipe, tile.

193. Clay, gray; includes sandy layers; average thickness 35 ft. Use: 

Refractories.

194. Spokane County. Sec. 1, T. 23 N., R. 44 E., town of Freeman.

Washington Brick, Lime, and Sewer Pipe Co. pit. Analyst, A. A. Hammer. 

Sample 66. ( Shedd, 1910, p. 190, 191, 193, 320, 321; Glover, 1941, p. 

231. 233, 241, 339, 350, 351.) Clay, deep-reddish-brown; 60 ft thick. 

Mineralogy. Index and geologic map, generalized geologic section. 

Physical properties, firing tests; microscopic description. Use: Brick.

195. Spokane County. SWi sec. 5, T. 23 N.. R. 45 E.. about 17 miles southeast of Spokane. Analyst, J. G. Fairchild. Sample 59. ( Ross and 

Hendricks, 1945, p. 32, 35, 39-46.) Nontronite, yellowish-green. Mineralogy. Relation of ions to crystal structure.

Washington Continued

196. Spokane County. NW* sec. 8, T. 23 N., R. 45 E., 1 mile east of town of 

Maiiito. Analyst, under direction of W. C. Bowden. ( Kerr and Kulp,

1949. p. 69.70,73; Kerr and others. 1949. p. 35, fig. 17; Kerr and others, 

1950a, p. 42; Kerr and others, 1950b, p. 40, 55; Wheeler and Burkhardt.

1950. p. 71, 80, 81; La Habra Laboratory, California Research Corporation, 1950, p. 132; Lewis, 1950, p. 93, 103.) Nontronite, green, waxy, 

massive. Mineralogy. Index map. Differential thermal analysis curve; 

base exchange capacity; size composition; spectrogram.

197, 198. Spokane County. [T. 23 N., R. 45 E.], Manito. ( Whitehouse and others, 

1960, p. 12, 48, table 2.) Nontronite. Physical properties; electron 

microscopic description. Nine samples analyzed.

*197. Each value is upper limit of each constituent analyzed. * Analysis 

suggests 3.0 percent excess FejOj.

*198. Each value is lower limit of each constituent analyzed. ^Analysis

suggests 2.9 percent excess FejOj. 

199. Spokane County. SWi sec. 30, T. 25 N., R. 45 E. Barkuloo prospect.

Analyst, C.M. Fassett. Sample 235. ( Glover, 1941, p.231.233.350.351.) 

Clay, gray. Index and geologic map, generalized geologic section. 

200-202. Spokane County. Middle to late Miocene, Latah Formation. SE^ sec. 35, 

T. 25 N., R. 44 E., 2.5 miles east of town of Chester. Sommers pit. 

(Glover, 1941, p.231.233,253,254,350,^51.) Maximum thickness 45 ft; 

overburden 1-6 ft. Index and geologic map, generalized geologic section. 

200, 201. (Shedd, 1910, p. 175, 177, 178,^80, 181, 307, 320, 321.) 

Use: Face brick, firebrick, sewer pipe.

200. Analyst, A.A. Hammer. Sample67. Clay, light-gray.

201. Analyst, W. R. Bloor. Sample 63. Clay, lightyellow, streaked, coarse-grained, sandy, little 

plasticity. Mineralogy. Physical properties, firing 

tests; microscopic description. 

202. Sample 234. Clay, light-gray. 

203, 204. Spokane County. [T. 25 N., R». 42, 43 E.], Spokane. Collector,

Edward Sampson. ( Ross and Hendricks, 1945, p. 31, 32, 34. 35. 39-46, 

51,55,70.) Mineralogy. Relation of ions to crystal structure.

203. Analyst, J. G. Fairchild. Sample 21. Montmorillonite-beidellite, 

salmon-buff; fillings of vesicular cavities in basalt. Ridgway 

color notation.

204. Analyst, E. V. Shannon. (Ross and Shannon, 1925, p. 467, 468.) 

Iron-beidellite, pistachio-green; interbedded with basalt flows. 

Optical properties; base exchange capacity; dehydration curve; 

indices of refraction and birefringence.

205, 206. Stevens County. Tertiary [implied]. Analyst, A. A. Hammer. (Shedd, 

1913, p. 144, 145. 151, 152, 251. pi. 21; Glover, 1941, p. 280, 352, 

353.) Large deposit. Index map. Possible use: Portland cement.

205. T. 35 N., R. 37 E., 6 miles south of town of Kettle Falls. Sample 

28. Shale, brown, finely laminated, fine-grained.

206. [T. 38 N., R. 39 E.], 4 miles east of town of Bossburg. Bonanza 

mine. Sample 34. Shale, bluish; in thin layers.

207. 208. Stevens County. Latah Formation. Sees. 29, 32, T. 30 N., R. 42 E., 

6 miles northeast of town of Clayton. Washington Brick, Lime, and 

Sewer Pipe Co., A. B. pit. ( Hodge, 1938e, p. 495, 496, 503, 590-592. 

593.) Deposit: Clay, white, plastic, some iron stain; minable depth 

16 ft; overburden 2 ft. Tonnage estimated. Index and geologic maps. 

Firing tests. Use: Firebrick, terra cotta.

209,210. Stevens County. Probably correlative of Latah Formation. NEaNWj

sec. 32, T. 30 N., R. 42 E., about 7 miles by road north of Clayton. 

Washington Brick, Lime, and Sewer Pipe Co., A. B. pit. Analyst, 

W. R. Bloor. Samples 76, 77. ( Shedd, 1910, p. 28, 207-^09. 210, 307, 

320, 321; Glover, 1941, p. 233, 287, 350, 351.) Clay, almost white, 

plastic, stratified; 20 ft exposed, overburden 10-12 ft. Index and geologic 

map. Physical properties, firing tests; microscopic description. Use: 

Pottery, stoneware. Possible use: Refractories.

211. Stevens County. Probably correlative of Latah Formation. SW4 sec. 34, 

T. 30 N., R. 42 E., Clayton district. Deer Park Natural Pigment Co., 

old Neafus clay pit. Analyst, Richard Marsh. Sample 273. ( Glover, 

1941, p. 233, 290, 350, 351.) General: Clay, nearly white, finegrained, plastic; 8-11 ft thick. Index and geologic map, generalized 

measured section. Use: Pottery, stoneware.

Footnotes of analyses on preceding page:

Iron and aluminum oxides. 

1 Calculated from reported Fe, 

MgCOSt CaCO,, and (or) P. 

'combined water.

4 Sample air dried; moisture at 110°C. 

5Reported as HjO( -

'combined water, ignition.

7 Ignition loss.

8 With sample 107, group Fe, and other samples not 

recorded: AsjOs = 0.05 percent; Pb, Zn, Ni, Cr, Se, 

and Sb absent or nearly so.

9 Not included in total.

M At950e C.

"Moisture and combined water, ignition.

u CaO = 2.57 percent, NatO = 1.71 

percent, KjO = 1.36 percent( Shedd, 1913, 

p. 251 ).

^gg.es percent in text.
58 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 4. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing more than 75 percent clay (Group D), common- and mixed-rock categories-continued

Chemical analyses Continued

Si02 __ ___ _ __

A1203 _________

Fe203 _________

Mga .

CaO ___________

Na 20 __________

K20___ ___ __ 

H20- _ _____

Ti02 ___ _____

PA _

MnQ___ ___

Cu ____________

Class ___ _ ___

Si02 .

A1203 .

Fe203 _

Mga -

CaO ___________

Na 20__ ___ ____

K2O ___________

H20 _________ .

Ti02 .

P205 .

MnQ _________ .

CO2 ________ .

s

NiO _________ .

Cr203 .

Total ___ .

212 213

46D41-187 46D41-200

43.49 56.98

19.59 17.74

27.56 7.22

_ _____ 4.08

.98 5.25

_ _____ .86

_ _____ 1.31

9.77 6.07

_ [101.39] 99.51

0,84,2 17,71,0

225

46D34-3

. _________ 57.36

. _________ 18.79

. _________ 6.68

9 49

. _________ 3.89

. _________ .10

. _______ _ 1.06

. _________ 2 3.56

. ________ .50

. _____ __ 4 3.58

. _________ "97.94

. _________ 17,73,0

214 215

46D41-202 46D41-203

50.68 56.48 

19.79 20.52 

9.45 7.16 

3.15 3.49 

6.48 4.18

) 2.31 _ ___

7.20 5.10

5 99.06 6 96.93 

5,82,0 12,77,0

*226 *227

46D34-5 46D37-157

14.90 34.8 

7.25 17.8 

54.05 38.8

[97.20] [96.9] 

0,51,0 0,66,0

Washington Continued

216 217 218 219 220 221 222 223 * 224

46D41-204 46D41-195 46D4 1-192 46D41-194 46D4 1-191 46D4 1-199 46D4 1-198 46D4 1-189 46D43-161

57.68 52.94 51.12 60.14 55.90 56.72 57.16 62.56 40.60 

22.60 22.12 21.26 20.00 20.69 15.69 16.10 23.96 4.78 

8.26 6.72 9.12 5.68 7.55 9.34 8.26 4.70 '36.84 

2.08 3.91 4.26 2.85 2.32 3.13 4.06 Trace .55 

5.95 2.99 3.48 4.07 3.63 4.43 4.15 1.80

__. ... 3.29 ...... ...... ( };S -° } ,.» ......

2 1.56 2 1.34 _____ _____ _____ _____ 2 .92 3 .96

06 _ __ ___

_ _ ___ _____ '.082

_ _ _ _ _ _ ___ _____ _____ '.26

3.09

.075

1.69 4 4.98 4 5.70 4.50 6.40 4 6.64 7.13 4 6.84 8.26

98.26 99.90 99.57 97.24 96.49 98.23 T 99.45 100.10 [97.30] 

8,82,0 6,82,0 3,85,0 18,72,0 11,80,0 18,70,1 20,68,2 15,84,0 0,84,0

W ashi ngton C onti nue d

*228 *229 230 231 232 233 234 235 *236

46D37-154 46D37-155 46D37-159 46D37-160 46D37-18 46D37-24 46D37-25 46D37-23 46D37-106

31.3 32.0 46.5 48.8 47.84 58.20 59.92 57.06 36.5 

14.4 17.2 16.9 16.2 \ f 18.17 17.85 ls 26M ( 9.3 

45.5 38.3 28.6 23.1 / 35 ' 14 \ »6.95 7.31 [ 26 ' 8° \ '41.61 

1.59 _ _ .20 3.28 3.15 '.54 ______

.04 __ _____ 1.29 3.47 6.08 '5.95 _____

 ~ ~ 1 2.56 ______

22 _ _____ ______

1 48 _ '.167

'.18 __ _____ _____ ______

K 2 18 '5.26

.015 _ _ _ ____ _____ .01

.57 ___ _____ _____ _____ _____ M .82

.91 _ _ __ _____ _____ M 1.50

B 5.56 I6(8.49) B 7.02 B 7.20 _____ 6.00 5.42 _____ 11.8

[96.8] [100.0] [99.0] [95.3] 100.37 96.07 99.73 [98.17] [101.7] 

0,61,0 0,62,4 0,88,0 0,91,0 0,92,0 19,71,0 20,70,0 12,73,12 0,78,0

Washington Continued Semiquantitative spectrographic analyses

Si02 ________ .

A1203 .

Fe208 .

FeO _________ .

MgQ _________ .

CaO _________ .

Na2O ________ .

K20__ _______ .

H20- .

Ti02 __ ___ _.

MnO ________ .

SOj

V205 .

Cr20s .

SrO _____ _ .

Z,r02 ________ .

BaO _________ .

Ignition loss___ _ .

Total ___ .

237

46D38-7

. _________ 39.92

. _____ __ 5.37

. _________ 29.46

. _________ .28

. _________ .93

. __________ 2.46

__ _______ Trace

. _____ . __ 7.00

. _________ 14.38

.08

_________ 99.88

. ________ 0,94,0

238 239

46D38-8 46D38-9

40.24 42.60 

4.94 5.86 

30.17 30.15 

None ___ _ _

.39 .24 

2.36 .19 

None 3.51 

None .09 is } «-

.02 .24 

_ ___ .07

_____ .03

100.20 99.73 

0,95,0 0,94,1

240 241 [ Analyst for sample P, G.V. Wheeler; analyst for sample S, W. Burkhardt.

46D38-6 46D39-2 (a) Presence uncertain by reason of interference at the only characteristic spec44.00 55.63 tral lines exhibited, (b) Presence not detected; limit of detectability by procedure 

6.41 18.25 employed is as yet uncertain, (c) Possible presence suspected; limit of detect31.90 3.88 ability by procedure employed still uncertain, (d) Element detected; present in 

too small concentration for spectrochemical determination by procedures

.13 1.03 employed]

.14 1.13 237 237

2.80 .90 PS PS

L Be ________ _____ <.0005 Rb _________ _____ (a)

l_ 2 7.25 a _ _____ ____ <-006 Sr _____ __ .05 .08

.05 .75 Sc (b) Y <.005

_____ .11 Co _ _ <.001 Ba -003 d <.04

 .18 Zn ________ _____ <-03 Pb ________ _____ <.02

_____ .03

14.40 4 8.57

99.92 99.74 

0,94,1 19,73,4

'Calculated from reported Fe (dry) , 

MgCO3 , CaCO3 , P and (or) Mn.

2 Sample air dried; moisture at 110eC. 

3 H20 (-110eC). 

4Combined water, ignition.

5Reported as 99.11 percent (Shedd,1913, 

p. 146)j 98.72 percent (Shedd, 1913, p. 249) .

'Reported as 98.93 percent (Shedd, 1913, 

p. 249).

T Reported as 99.51 percent 

(Shedd, 1913, p. 249) .

Iron and aluminum oxides, 

'iron. 

10 Moisture. 

"Moisture (H2O). 

12 Ignition loss minus H2O; 

calculated by compilers.

M Cr.

B Includes H2O.

"includes H2O; not included in total. 

"Reported as 99.91 percent 

(Shedd, 1910, p. 276).
ANALYSES OF SAMPLES 59

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

W ashington C ontinued

212.

213.

214-216.

217, 218.

219, 220.

221.

222.

223.

225.

*226.

Stevens County. Middle to late Miocene, Latah Formation. SWi sec. 34, 

T. 30 N., R. 42 E., about 7 miles north of town of Deer Park. Analyst, 

K. A. Johnson. ( Wilson, 1929, p. 2, 22-24, 25-38; Glover, 1941, 

p. 290.) Ocher-sienna mixture; 3.5-5 ft thick; overburden. Beneficiation tests. Use: Pigments.

Stevens County. Pleistocene. [T. 36 N., R. 38 E.],town of Kettle Falls. 

Analyst, A. A. Hammer. ( Shedd, 1910, p. 218, 219; shedd, 1913, 

p. 143. 144. 249; Weaver, 1920, p. 338, 341, pi. 1.) Clay, lightgray, very fine grained, free from grit; more than 40 ft thick; overburden 

10-15 ft. Index and geologic map, geologic sections. Use: Brick. 

Possible use: Portland cement.

Stevens County. Pleistocene. Analyst, A. A. Hammer. Samples 39, 41, 

42. ( Shedd, 1913, p. 146, 147. 148, 249, pi. 21; Glover, 1941, 

p. 294-296. 352, 353.) Index map. Possible use: Portland cement, 

slip for glaze, common red ware.

214. [T. 37 N., R. 37 E.],0.75 mile from town of Marcus, railroad cut. Clay, dark-gray, fine-grained, compact. 

215, 216. [T. 37 N., R. 38 E.],about 0.5 mile north and a little east 

of town of Evans, roadcut. Clay, light-gray, fine-grained, 

stratified.

Stevens County. Pleistocene. [SW* T. 38 N., R. 38 E.],near town of 

Bossburg. Spokane Pottery Co. Analyst, W. R. Bloor. Samples 78, 79. 

( Shedd, 1910, p. 217, 218. 307. 321; Glover, 1941. p. 295, 296, 352, 

353.) Clay; dark with bluish cast when wet; light gray when dry; 

plastic. Physical properties, firing tests. Use: Glaze for stoneware. 

Possible use: Brick, draintile.

Stevens County. Pleistocene. Bossburg. Analyst, A. A. Hammer. 

( Shedd, 1913, p. 103, 151, 249. pi. 21; Glover, 1941, p. 294-296, 

352, 353.) clay, light-gray, fine-grained, finely stratified, free from 

grit. Possible use: Portland cement, slip for glaze, common red ware.

219. [SWi T. 38 N., R. 38 E.] Sample 43.

220. [T. 38 N., R. 38 E.] Rasmussens place. Sample 40. Clay, 

uniform, fairly plastic. Index map.

Stevens County. Pleistocene. Sec. 36, T. 40 N., R. 39 E., near town of 

Northport, railroad cut. Analyst, A. A. Hammer. Sample 84. ( Shedd, 

1910, p. 216. 321; Shedd, 1913, p. 156, 157. 158. 249; Weaver. 1920, 

p. 338, 343, pi. 1.) Clay, yellowish, compact, fine-grained, free 

from grit, plastic. Index and geologic map, geologic sections. Former 

use: Brick. Possible use: Portland cement.

Stevens County. Pleistocene. [T. 40 N., Rs. 40, 41 E.],about 2 miles 

northeast of Northport, railroad cut. Analyst, A. A. Hammer. Sample 

36. ( Shedd, 1913, p. 156, 157, 158, 249; Glover, 1941, p. 295, 296, 

352, 353.) Clay, gray, earthy, compact, stratified, fine-grained; 

free from gritty material. Possible use: Cement material.

Stevens County. Sec. 19, T. 29 N., R. 42 E., town of Clayton.

Washington Brick, Lime,and Manufacturing Co. Analyst, W. R. Bloor. 

Sample 70. ( Shedd, 1910, p. 200-202, 205, 206, 307, 320. 321; 

Glover. 1941, p. 233, 282, 284, 350, 351.) Clay, light-yellow, sandy, 

plastic; about 6 ft thick. Mineralogy. Index and geologic map, 

generalized geologic section. Physical properties, firing tests, microscopic description. Use: Face brick, terra cotta.

Stevens County. [NW^ sec. 3, T. 37 N.. R. 37 E.],Kelly Hill. Napoleon 

mine. ( Zapffe, 1949, p. 20, 21.) Limonite, brown, soft; occurs as 

thick mantle. Tonnage estimated. Sample of oxidized material; not 

typical of deposit. Former use: Low heat cement, flux. ""Analysis 

shows 3.1 percent S; suggests 6.9 percent excess Fe2O3; MgO and CaO 

not calculated as carbonate.

Thurston County. Pleistocene. [T. 18 N., R. 2 W.],town of Olympia. 

Analyst, W. R. Bloor. Sample 86. ( Shedd, 1910, p. 275. 276. 307. 

320. 321; Glover. 1941, p. 301, 340, 352, 353.) Clay; light gray when 

dry; slightly greenish when wet; fine grained; free from grit; fairly 

plastic. Physical properties, firing tests. Possible use: Brick, structural 

ware.

Thurston County. Holocene. SEjSWj sec. 6, T. 17 N., R. 1 E., 9 miles 

east of Olympia, shore of Lake St. Clair. ( Patty and Glover, 1921, 

p. 109; Glover. 1942, p. 21; Huntting, 1956, p. J31.) Limonite, 2-6 ft

Washington Continued

thick. Tonnage estimated. Index map. Former use: Paint pigment.

* Analysis suggests 5.8 percent excess AljOj, 43.1 percent excess FejOj.

227-231. Whatcom County. Early Tertiary. Nj sec. 2, T. 39 N., R. 4 E., 4 miles 

east of town of Everson. Sumas Mountain Iron deposit. Analyst, 

W. H. Ott. ( Moen, 1962, p. 105, 109, ^10-112, pis. 1, 4.) Mineralogy. 

Average bulk density of five samples 3.0. Tonnage estimated. Index 

and geologic maps, geologic sections. Use: None.

*227. Sample 1. Siltstone, medium-brown. Channel sample taken 

across 5.0 ft. ""Analysis suggests 9.6 percent excess AljOj, 

20.9 percent excess FejOj.

*228. Sample 2. Clay stone, grayish-red. Channel samples taken across 

4.5 ft. ""Analysis suggests 8.5 percent excess AljOj, 27.0 percent excess FejOs.

*229. Sample 6. Claystone, grayish-brown. Channel sample taken 

across 3.0 ft. ""Analysis shows 0.9 percent CrjOs; suggests 9.7 

percent excess AljOs, 21.7 percent excess FejOj.

230. Sample 7. Claystone, grayish-brown. Channel sample taken 

across 3.0 ft.

231. Sample 5. Siltstone, medium yellowish-brown. Channel sample 

taken across 5.0 ft.

232. Whatcom County. Eocene, Chuckanut Formation. SEj sec. 12, T. 40 N., 

R. 4 E., 3 miles southeast of town of Sumas. Denny-Renton Clay and 

Coal Co., old clay mine. Analyst, A. G. Smith. Sample 91. ( Shedd, 

1910, p. 286-^88, 320, 321; Glover, 1941, p. 306, 311-313, 352, 353.) 

Clay. Index map, detailed measured section. Former use: Terracotta, 

fire clay.

233. Whatcom County. Pleistocene. [Sec. 33, T. 39 N., R. 2 E.],town of 

Brennan. Olympic Portland Cement Co. pit. (Shedd, 1913, p. 217; 

Glover, 1941. p. 319, 341, 352, _353.) Clay. Firing tests. Possible 

use: Brick, tile.

234. Whatcom County. Pleistocene. Sec. 9, T. 40 N., R. 5 E., about 5 miles 

northwest of town of Kendall. Jacobs farm. Analyst, A. A. Hammer. 

Sample 61. ( Shedd, 1913. p. 209, 213, 214, pi. 21; Glover. 1941, 

p. 319, 352, 353; Moen, 1962, p. 85, J36, pi. 1.) Clay, gray to yellow, 

fine-grained, no grit. Index and geologic map, geologic sections. 

Possible use: Brick, portland cement [implied].

235. Whatcom County. Pleistocene. [Sec. 34. T. 40 N., R. 5 E.],near

Kendall, along railroad. Analyst, A. H. Cederberg. Sample 4. ( Landes, 

1905 [1906], p. 379; Glover. 1941. p. 319, 352, 353.) Clay; at least 

50 ft thick. Possible use: Cement.

*236. Whatcom County. Sec. 2, T. 39 N., R. 4 E., and sec. 35, T. 40 N.,

R. 4 E., 3 miles southeast of Nooksack station. Sumas Mountain deposits. 

(Zapffe, 1949, p. 53, j>4, 55.) Deposit: [Iron-bearing rock] late rite, 

brown to red, mainly fine grained, massive, dense; maximum thickness 

30ft, usually 20 ft. Tonnage estimated. Possible use: Pigment, 

production of iron. ""Analysis suggests 3.9 percent excess AljOj, 17.6 

percent excess FejOs.

237. Whitman County. S^NEi sec. 4, T. 17 N., R. 45 E., 1 mile south of town 

of Garfield, roadcut. Analyst, under direction of W. C. Bowden. Sample 

33a. ( Kerr and Kulp, 1949. p. 69, 70, 72; Kerr and others, 1949, p. 35, 

fig. 17; Kerr and others, 1950a, p. 42; Kerr and others, 1950b, p. 23, 40, 

j>5; Wheeler and Burkhardt, 1950, p. 71, 80, 81; La Habra Laboratory, 

California Research Corporation, 1950, p. 132; Bray and Stevens, 1950, 

p. 93, 102; Hunt, 1950, p. 109. 117.) Nontronite, green, waxy, 

massive; in veins 1-3 ft thick. Mineralogy. Index map. Differential 

thermal analysis curve, base exchange capacity, size composition, 

X-ray data, spectrogram, infrared spectrum.

238. Whitman County. Sec. 4, T. 17 N., R. 45 E., 1 mile south of Garfield,

roadcut. Analyst, N. Davidson. ( Alien and Scheid, 1946. p. 297. 298.) 

Nontronite, yellow; in veins 1-6 in. wide. Optical properties.

239,240. Whitman County. [T. 18 N., R. 45 E.],near Garfield. Nontronite. 

Physical properties.

239. ( Osthaus. 1953. p. 405. 406, 410.)

240. ( Osthaus. 1956. p. 302. 304. 318, 320.)

241. Yakima County. Holocene. [T. 13 N., R. 18 E.],North Yakima.

C. A. Rhodes property. Analyst, W. R. Bloor. Sample 95. (Shedd, 

1910, p. 320, 321; Glover, 1941, p. 332, 341, 352, 353.) Clay.
60 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 5. Analyses of samples from Alaska, Idaho. Oregon, and Washington,containing clay and carbonate each less than 75 percent; clay and carbonate each greater than

uncombined silica (Group E), common- and mixed-rock categories

[Samples of mixed-rock category indicated by an asterisk(*) . Chemical analyses arranged by State 

Chemical analyses

SiO2 _

A120, ___________

Fe20, ___________

MgO_ ____________

CaO _____________

Na20_ __ _

H20 _____________

Total _______

Class ____________

1

50E5-8

18.0 

1.8 

1.0 

.97 

37.0 

.48 

.28

*39.3

[98.8] 

J4.16.68

Calcite

2

50E5-7

16.3 

.95 

1.1 

.59 

37.8 

.48 

.34

S 40.0

[97.6] 

13,15,69

Calcite

3

50E5-12

32.8 

3.2 

1.6 

.62 

21.9 

.82 

.39

3 36.8

[98.1] 

25,31,40

Calcite

4

50E6-2

33.00 

13.1 

2.08 

3.89 

18.2 

.83 

.46

.10

418.55

7 [95.5] 

7,46,41

Magnesian 

calcite

5

50E23-3

43.83 

12.59 

6.79 

3.82 

13.85

)

.92 

2 .19

5 13.91

[100.00] 

14,54,20

Alaska

6

50E52-55

47.6 

12.6

4.2

2.6 

14.5

f 1<2 

1 2.2

.12 

.19

14.2

[99.4] 

21,48,22

7

50E52-54

41.8 

11.2 

4.3 

2.1 

19.9 

1.7 

1.5

.14

16.9

[99.5] 

17,44,29

8

50E52-19

25.5 

5.6 

2.1 

2.0 

33.5 

1.3 

.70

.06 

.64

28.2

99.6 

13,22,59

Magnesian 

calcite

quadrangle or county , and stratigraphic position ]

9 *10 11

50E156-2 50E156-10 50E154-40

24.0 21.3 28.7 

7.1 14.6 6.55 

4.4 11.4 2.88 

2.0 1.3 3.1 

31.0 21.6 29.2

.07 .25 ______

1.26 7.24 .01

.80 .62 ______

*25.4 *17.4 ______

96.0 95.7 [70.4] 

6.32,57 0,39,35 14,27,59

Magnesian Magnesian Magnesian 

calcite calcite calcite

Alaska Continued

Si02 ____________

Fe20s ___________

FeO _____________

MgO_ ____________

CaO _____________

Na20 _ 

If -T*

H2O-_ __ __

Ti02 _ _ ______

MnQ _____________

CO2 ____________

SO, ____________

NaCl ____________

Total _______

Class ___ ___ __

14

50E154-121

18.0 

4.82 

2.18

4.9 

34.8

2.15

[66.8] 

7,20.69

Magnesian 

calcite

15

50E155- 1

21.4 

5.90 

1.70

1.1 

37.0

.62

[67.7] 

9,22,68

Calcite

16 17 18 19

50E155-135 50E155-136 50E155-139 50E124-20

26.0 

8.90 

4.30

.6 

31.0

[70.8] 

5,37,57

Calcite

19.0 

5.15 

1.05

.1

41.0

[66.3] 

9,18,73

Calcite

22.8 

5.25 

1.35

.1 

37.6

[67.1] 

12.19,67

Calcite

28.6 

\ S 8.2

5.3 

29.6

*1.16

20.9 

1.3 

.01

[96.2] 

15,24,46

Magnesian 

calcite

*20

50E124-15

17.8 

"5.4

3.7 

29.3

9 7.9 

".81

12.3 

18.6 

.01

[95.8] 

9,15,27

*21

50E124-18

21.4 

*6.8

5.4 

33.3

"l.08

24.2 

3.0 

.01

[96.1] 

10,20.53

Magnesian 

calcite

*22 *23 *24

50E124-16 50E124-17 50E124-14

19.2 19.8 15.8 

8 6.4 S 6.2 8 4.2

3.3 5.6 6.2 

33.3 35.0 30.9

9 3.7 9 1.6 9 6.5 

".71 "l.05 ".72

20.6 24.9 16.2 

8.15 3.1 16.05 

.01 .01 .01

[95.4] [97.3] [96.6] 

8,18,46 9,18.55 9,12,35

Magnesian Magnesian Calcareous 

calcite calcite dolomite

12

50E 154-41

22.5 

4.75 

1.43 

1.5 

37.0

.01

[67.2] 

12,18,69

Magnesian 

calcite

13

50E154-42

21.55 

4.35 

1.85 

3.0 

35.7

.01

[66.5] 

12,18,70

Magnesian 

calcite

Idaho

*25

11E4-8

18.4 

f 3.7 

I 1.8

25.0

.3 

10.2

4.6 

"3.4

B [97.0] 

10.43,10

26

11E9-5

27.5 

6.6 

.9 

1.4 

3.3 

30.3 

.68 

1.7

^ .23 

.07 

.12 

26.2 

B .31

100.7 

15,22,58

Magnesian 

calcite

Idaho Continued

Si02 ____________

A120, ___________

Fe20, ___________

MgQ. ____________

CaO _____________

Na20+K20

H20+ ___________

H20- ___________

C02 ____________

V

Cr

Organic matter ______

Class ____________ 

CaO/MgO _________

27

11E45-43

23.84 

4.68

8.57 

24.39

"6.02 

23.55 

.02

"6.36

[97.46] 

16,20,49

Calcite

*28

11E15-2

22.5 

4.5

1.4 

21.8

8.9 

13.4 

.11

"23.3

[95.9] 

15.37,25

Calcite

29

11E15-3

14 7. 52 

[ 1.77

38.28 

1.18

"15.41 

*1.06

34.97

100.19 

5,21.67

Magnesite

30

11E35-35

B17.2

1.4 

34.9

20 35. 8

[101.3] 

0,34,65 

Magnesian 

calcite

31

11E35-6

37.94 

C 9.22 

\ 4.10 

3.74 

23.28 

B .88

18.21

100.00 

17,37,40 

Magnesian 

calcite

32

11E35-40

B 44.8 

[ 13.4

4.6 

19.2

20 17.0

[99.0] 

22,39,30

33

11E35-36

B18.5 

9.2

1.6 

37.2

33 .6

[100.1] 

3,27,70 

Magnesian 

calcite

34

11E35-37

B 19.0 

( 3.9 

{ 1.2 

.3 

40.2

"31.4

[96.0] 

11.15,71

Calcite

'ignition loss at 600°C ( C.L. Grant, oral 7Ca,Na,K, determined by flame photometer; SiO2 

comm. , Jan. 29, 1965). determined gravimetrically; other elements determined 

P.OS- spectrochemically . Sample dried at 110°C. 

'includes ignition loss due to oxidation of FeO. 8Rz°s4 COj (C.L. Grant, oral common. 'Comb. H2O. 

Jan. 29, 1965). "Free Hf>. 

5 Reported as loss, COj, H2O, organic. nS. 

6 COj, 400°-1,000°C, direct combustion. B Sulfur soluble in aqua regia, calculated as FeS2 . 

Sample 9, ignition loss = 26.6 percent, sample 10, 

ignition loss =21.9 percent; not included in total.

35 36 37

11E35-21 11E35-16 11E35-20

37.28 18.42 37.20 

I 12.88 8.29 11.44

1.42 2.85 2.54 

25.76 36.46 25.80

[77.34] [66.02] [76.98] 

16,38.44 5,24,71 18,33.45 

Magnesian Magnesian Magnesian 

calcite calcite calcite

38

11E35-22

41.34 

15.63

4.04 

20.06

[81.07] 

15,46,33 

Magnesian 

calcite

39

11E35-17

23.96 

9.16

1.81 

35.67

[70.60] 

9.27,61 

Magnesian 

calcite

B V2O8 = 0.69 percent, MoOs = 0.07 percent, 

F =0.2 percent, ignition loss = 28.7 percentj subtotal =97.1 

percent , less O = 0 . 1 percent . 

M Includes insoluble. 

B Acid insoluble (chiefly SiO-) . 

B Alkalies and undetermined. 

"Above 105°C. 

B Below 105°C. 

"Calculated from reported MgO, CaCOj, P and (or)C. 

20 Loss on ignition ( chiefly CO») .
ANALYSES OF SAMPLES 61

Spectrochemical analysis of sample 4 

[ Values in ppm. ND = not detected (less than 1 ppm), e = extrapolated value]

V _____________ e !60

Cr ____________ 281

Mn _ _ 75

Ni _____________ e261

Co ____________ 6.2

Cu ____________ 155

Zn ___________ 665

Ga ___________ .85

Mo _____________ ND

Sr _____________ 282

Sn ______ 1.8

Ba ____________ 1120

Alaska

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Alaska Continued

1, 2. Anchorage quadrangle. Holocene. [Sec. 11, T. 17 N., R. 1 W.], Knik 

Arm area, Wasilla Lake. Analysts, E. A. Nygaard, S. M. Berthold. 

(Moxham and Eckhart, 1956, p. 3, 6, 8, 12-^4, 15. 16. 18. 19. pi. 1.) 

Marl, white to very light gray, plastic; contains mollusk fragments and 

plant remains. Composite sample. Tonnage estimated. Index and geologic maps, geologic section, columnar sections. Possible use: Portland 

cement. 

1. Auger hole 2, sample 4. 2. Auger hole 3. sample 5.

3. Quadrangle, age, analysts, reference, maps, and use as in samples 1, 2. 

[Sec. 33, T. 18 N., R. 1 E.], Finger Lake. Auger hole 3, sample 6. 

Marl; light tan when wet; buff to grayish white when dry; at least 8-21 ft 

thick where drilled; overburden. Tonnage estimated. Columnar section.

4. Arctic quadrangle. Permian and Triassic, part of undifferentiated

Sadierochit and Shublik Formations. [About 3.1, 13.7], rolling foothills 

on north side of Porcupine Lake, Brooks Range. ( Ugolini, Tedrow and 

Grant, 1963, p. 115-118, 119-122.) Shale, black, hard. Mineralogy, 

thin-section description, pH values. C/N ratios, differential thermal 

analyses, cation-exchange capacity.

5. Blying Sound quadrangle. Holocene [implied]. Lat 59°32'N.,

long 148°45' W.. off southern Alaska coast. Analyst. Willard Woodstock. 

Sample 4. ( Tyler, 1931, p. 12-^5, 16-20.) Mud, bottom sample, fossiliferous. Depth of water 276 ft. Mineralogy. Index maps. 

6,7. Healy quadrangle. Pre-Devonian. [About 6.75-7.35, 7.5-7.7], ridge 

southwest of mouth of West Fork, Windy Creek area. Analysts, 

A. C. Vlisidis, Leonard Shapiro. Lab. Nos. 1915C, 1940C. ( Moxham, 

Eckhart.and Cobb, 1959, p. 69, 88-J31, 92, j)3, pi. 11.) Argillite, red, 

green,and yellow, mottled; about 200 ft thick; little overburden. Tonnage 

estimated. Index and geologic maps, geologic sections. Possible use: 

Cement. 

8. Quadrangle, reference, maps, sections, and use as in samples 6, 7.

Devonian^?). [5.8-6.7, 7.8-8.0], headwaters of West Fork of Windy 

Creek. Analysts, Leonard Shapiro, L. E. Reichen, S. M. Berthold. 

Lab. No. 1927C. Limestone, dark- to bluish-gray, fine-grained, very 

dense, massive, locally banded; weathers light gray. Chip sample. 

9,10. Healy quadrangle. Middle Devonian. [5.8-6.7, 7.8-8.0], headwaters of

West Fork of Windy Creek. Samples 502, 510. ( Warfield, 1962, p. 3, 12, 

13, 15-1S.) Limestone, dark-gray to blue-gray, fine-grained, dense, 

recrystallized; contains calcite veinlets. Estimated thickness 3,100 ft. 

Representative sample from channel 50 ft in length. Index and geologic 

maps. Possible use: Portland cement, mineral wool. 

*10. Analysis suggests 15.6 percent gypsum, 6.6 percent excess AljOs,

5.1 percent excess FejOs.

11-13. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 E. unsurveyed], southern slope of Alaska Range in southeastern corner 

of Mount McKinley National Park. Northern Empire Development Co. 

Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91. 93, 98- 

101, 109, 112. 114, 123, figs. 1, 3, 35-37, 39-41.) Limestone, black, 

fine-grained, contains calcite veinlets, shale partings. Total depth of 

diamond-drill hole 395 ft. Index and geologic maps, geologic section; 

log of drill hole 8. Possible use for deposit: Portland cement; magnesia 

content often high so that complex mining and thorough blending may be 

required. [For other analyses from same drill hole, see samples 59-61, 

group Fj; samples 419-491, group Fj.]

11. Depth 390-395 ft.

12. Depth 385-390 ft.

13. Depth 380-385 ft.

14. Quadrangle, age, locality, analyst, reference, maps, and use as in samples 

11-13. Limestone, black, silicified; depth 575-580 ft. Total depth of 

diamond-drill hole 620 ft. Geologic section, log of drill hole 9. [For 

other analyses from same drill hole, see samples 23-25, group B; samples 

4, 5. group C; samples 62, 63 group Ftf samples 492-608, group Fj.]

15. Quadrangle, age, locality, analyst, reference, maps, and use as in samples 

11-13. Limestone, black, fine-grained; depth 280-284 ft. Total depth 

of diamond-drill hole 284 ft. Geologic section, log of drill hole 11. [For 

other analyses from same drill hole, see sample 6. group C; sample 64, 

group FI; samples 649-702, group Fj.]

16- la. Healy quadrangle. Triassic. [2.45-2.75, 2.85-3.3], West Fork of Chulitna 

River. Analyst, H. E. Peterson. Samples 192, 191, 188. ( Rutledge and

others. 1953, p. 4, 87, 118-220, 123, figs. 1, 3, 26, 43.) Outcrop 

description: Limestone, white to gray, fossiliferous; fractured and weathered; 

interbedded with siliceous material. Index and geologic maps. Possible 

use: Cement, rock wool. 

19-24. Sitka quadrangle. [19.0, 16.25], Chichagof Island, lyoukeen Cove.

Gypsum-Camel deposit. Analyst, H. E. Peterson. ( Jermain and Rutledge, 

1952, p. 1, 3, 4, 5, figs. 1-6.) General: Gypsum, mostly white, finegrained, translucent. Overburden. Index and geologic maps, geologic 

sections, measured section. 

19. Sample 1. Clay, blue and brown; with gypsum.

*20. Sampled. Gypsum, some clay seams. * Analysis suggests 40.0 

percent gypsum, 5.4 percent more MgO and CaO than required 

for carbonate.

*21. Sample 7. Gypsum with some gravel. *Analysis suggests 6.4 percent 

gypsum, 9.6 percent more MgO and CaO than required (.M carbonate.

*22. Sample 8. Gypsum with some gravel. *Analysis suggests 17.5 percent 

gypsum, 5.7 percent more MgO and CaO than required for carbonate.

*23. Sample 9. Gypsum with some gravel. ^Analysis suggests 6.7 percent 

gypsum, 8.3 percent more MgO and CaO than required for carbonate.

*24. Sample 17. Gypsum with some clay seams. *Analysis suggests 34.5 

percent gypsum, 7.3 percent more MgO and CaO than required 

for carbonate.

Idaho

*25. Bear Lake County. [Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. T. 14 S., R. 43 E.], Paris Canyon. Metals Reserve Co. 

Lot No. 6-15. ( Ravitz and others, 1949, p. 308. 309, 314.) Shale. Use: 

None. *Analysis shows 3.4 percent S; 0.7 percent VjOs; suggests 24.2 

percent phosphate, 5.7 percent more CaO than required for carbonate.

26. Bonner County. Precambrian, Wallace Formation. T. 56 N., R. 2 E., 

southeast end of Howe Mountain. Quarry. Analysts, P. L. D. Elmore, 

S. D. Botts, I. H. Barlow, Gillison Chloe. Lab. No. 155260. ( Harrison 

andjobin, 1963, p. K3, K15, K36, K37. pi. 1.) Limestone, blue-gray. 

Index and geologic maps, geologic sections. Possible use: Cement.

27. Caribou County. Phosphoria Formation [ Meade Peak Phosphatic Shale Member. 

Sees. 2, 11, T. 8S., R. 42 E.] Conda mine. Sample S5. ( Ernigh, 1958, 

p. 27, 28, 30, fig. 1.) General: When fresh, phosphatic dolomitic shale, 

black, fine-grained, dense; when weathered, shale, brown, fossiliferous; 

17-24 ft thick. Mineralogy, thin-section description. Index map.

*28. Caribou County. Phosphoria Formation. [T. 8 S., R. 42 E.], town of Conda. 

( Stickney and Wells, 1955, p. 8. JIO, 11.) [Limestone, phosphatic, argillaceous]; 18 ft thick. Composite of channel samples. Beneficiation tests. 

Possible use: None [implied] . *Analysis suggests 21.1 percent phosphate. 

29. Caribou County. Possibly Tertiary or Quaternary. [T. 9 S., R. 42 E.],

within 4 miles of town of Soda Springs. Analyst, E. V. Shannon. Sample 

94140. ( Yale and Stone, 1923. p. 12, ^3; Mansfield, 1927, p. 2, 333. 

334, pis. 1, 19.) General: Hydromagnesite, white, earthy-textured, friable, 

amorphous; 2-4 ft thick. Index and geologic maps, generalized columnar 

section. Possible use: General uses of magnesite including refractories. 

30-34. Nez Perce County. Late Triassic. (Savage, 1965, p. 18a, 18b, 18c, 19, 20, 

pis. 1, 2, fig. 1.) Tonnage estimated. Index and geologic maps, geologic 

section. Possible use: Portland cement.

30,31. Martin Bridge Formation. NW« sec. 34, T. 32 N., R. 5 W., 

Lime Point.

30. Analyst, Huey-rong Hsi. Sample 2Km. [Limestone.] 

Possible use: Aggregate, ballast, flux, lime.

31. Analyst, A. B. Lort; collector, H. S. Gale. Lab. No. 3747. 

( Eckel, 1913, p. 136-J.38. 139.) Shale, average from 

prospect pit. Use: Portland cement.

32, 33. Hurwal Formation. SEi sec. 36, T. 33 N., R. 5 W., near mouth 

of Madden Creek. Analyst, Huey-rong Hsi. Samples, 3Hh, 

3Ch. Limey shale.

34. Sec. 34, T. 32 N., R. 5 W., east of Lime Point. Sample 41s. 

[Limestone.] Possible use: Aggregate, ballast, flux, lime.

35-39. Nez Perce County. [Late Triassic. Sec. 34, T. 32 N., R. 5 W.], Lime 

Point. Samples 1-5. ( Shedd, 1913, p. 119.) Shale. 

35, 36. Analyst, Elton Fulmer. 

37-39. Analyst, H. C. Johansen.

487-187 O - 73 - 5
62 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 5. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing clay and carbonate each less than 75 percent; clay and carbonate each greater

than uncombined silica (Group E), common- and mixed-rock categories Continued

SiOt - 

A1.0. 

Fe.O, 

MgCL 

CaO __________

Na_O + K.O _____

H.O

TiOt _________

PjO. _

MnO _________

C0t _________

S ____________

Cr ___________

Ni ___________

Co ___________

Total ____

Class _________

CaO/MgO ______

Idaho Continued

40 41 42

11E35-19 11E35-15 11E35-18

__ 35.74 17.74 26.87

 L 13.65 9.08 11.84

__ 3.47 2.16 2.14

__ 25.07 39.13 31.75

__ [77.93] [68.11] [72.60]

__ 13,40,41 3,27,67 7,35,55

Magnesian Magnesian Magnesian

calcite calcite calcite

43

11E40-9

37.88 

f 9.13

*4.33 

*8.96 

*13.50 

4.00

.41

*.20 

*20.88

99.29 

22,26,43 

Dolomite

Chemical analyses Continued

Oregon

44

36E3-30

17.35 

I 6.13

'.61 

*40.69

*32.60

[98.69] 

7,18.74 

Calcite

Oregon Continued

SiOj ____ _____

A1.0, ________

Fe.O, _

MgO_ _________

CaO __________

H.O- ________

CO. _________

Total ____

Class _________

CaO/MgO ______

53 54 55

36E27-5 36E27-7 36E27-3

__ 15.38 18.82 24.08

__ 6.58 4.77 |

__ 8 5.70 *4.05 }

__ *2.05 *1.69 2.74

__ *37.25 *37.87 31.58

__ _____ _____ *3.56

__ '31.47 *31.57 20.24

__ [98.43] [98.77] [97.86]

__ 0,27,71 6,23,71 0,44,45

Magnesian Magnesian Magnesian

calcite calcite calcite

56

36E28-2

17.74 

7.01

2 .42 

'41.42 

4 .42 

2 32.96

[99.97] 

6,19.75 

Calcite

57

36E28-3

52.84 

19.98

*2.18 

2 10.53

*10.65

[96.18] 

19,57,23

45

36E10-40

45.2 

f 1.7 

\ '12.0

18.3 

.18

'.02

.003 

.64

1.7

.013

[79.8] 

29,34,32

46

36E15-6

31.77 

9.80 

3.96

4.19 

27.56

1.54

20.36 

.03

99.21

10,37,45

Magnesian 

calcite

47

36E27-10

32.64 

1 '19.24

'4.58 

2 20.41

'21.03

[97.90]

0,54,46

Magnesian 

calcite

48

36E27-8

31.32 

'16.50

2 3.06 

*24.93

2 22.91

[98.72]

4,45,51

Magnesian 

calcite

49

36E27-6

18.30 

'10.30

*1.98 

2 36.65

2 30. 94

[98.17]

1,29,70

Magnesian 

calcite

50

36E27-11

33.06 

'14.82

2 2.51 

*25.23

2 22.54

[98.16]

8,41,50

Magnesian 

calcite

51

36E27-9

31.86 

f 7.69

H »4.75

'l.59 

*28.95

*24.47

[99.31]

13,32,55

Magnesian 

calcite

52

36E27-12

34.24 

7.47

*9.45

*4.62 

'21.65

*22.04

[99.47]

10,41,48

Magnesian 

calcite

Washington

58

46E2-7

26.28 

f 15.32 

1 1.57 

Trace 

28.72

*27. 17

99.06 

0,46,51 

Calcite

59

46E4-34

24.49 

4.21 

1.86 

1.05 

38.85

*27.73

98.19 

15,17,59 

Calcite

60

46E4-32

30.40 

6.54 

2.90 

1.85 

34.56

 21.82

98.07

16.27,44

Magnesian 

calcite

*61

46E4-41

24.70 

9.69 

4.76 

2.84 

35.97

*21.70

99.66

2,41.41

Magnesian 

calcite

62

46E4-39

32.01 

20.70 

3.58 

2.31 

21.22

*19.24

99.06

0.56,32

Magnesian 

calcite

63

46E4-36

30.37 

8.78 

2.26 

1.49 

32.42

*23.00

98.32

12,32,46

Magnesian 

calcite

64

46E4-53

40.43 

8.61 

3.42 

1.80 

27.82

*17.63

99.71

21,34,33

Magnesian 

calcite

65

46E4-51

19.24 

4.19 

1.72 

.95 

45.27

*27.62

98.99 

10,17,59 

Calcite

Washington Continued

SiOt _________

AltO, _

FetO, .

Mga _

CaO __________

Na.O+ K2O _____

P.O. _

S ____________

Total ____

Class _________

CaO/MgO ______

66 *67

46E4-50 46E4-47

__________ 35.15 39.91

__________ 9.26 12.02

__________ 5.25 3.71

__________ 2.24 2.05

__________ 28.05 27.36

___ _______ 17.83 15.15

__________ 97.78 100.20

__________ 13,40,32 14,45,25

68

46E4-45

20.92 

5.44 

2.60 

2.00 

40.93

28.84

100.73

8,23,60

Magnesian 

calcite

*69

46E4-59

40.10 

12.27 

3.88 

1.98 

24.89

13.83

96.95 

14,46,22

70

46E4-54

43.79 

13.04 

1.16 

1.92 

22.52

14.77

97.20 

19,42,25

71

46E5-2

41.96 

11.06 

6.26 

2.20 

19.88

15.06

[96.42] 

15,48,24

72

46E10-2

18.9 

} '7.2

*2.2 

2 37.0 

 2.1

Trace 

*31.4

[98.8]

7,20,71

Magnesian 

calcite

73

46E16-6

31.06 

f 8.46 

1 10.94 

2.17 

25.11

20.04

[97.78]

4,52,34

Magnesian 

calcite

74

46E16-5

16.46 

j T 8.87

.84 

40.66

.020

B 32.74

[99.59] 

2,26,69 

Calcite

75

46E16-4

13.86 

f 5.74 

\ 2.02 

.44 

41.66

32.67

[96.39] 

1,22,70 

Calcite

76

46E23-5

25.17 

I T13.34

1.51 

34.26

.049

*24.63

[98.96]

3,39,48

Magnesian 

calcite

77

46E23-6

26.84 

T 13.84

1.45 

33.42

.118

*23.89

[99.56]

4,40,46

Magnesian 

calcite

See following page for footnotes.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LiiO,BeO,BtOj,Sc2Oj,BaO,ZnO,GatOj,GeOz ,AsjOj,Y2Oj,Nb2O5 ,MoO} ,Ru,Rh,Pd,CdO,InjOj,SnOt ,SbjO} ,

Na.O _______

KtO_ ___

TiOj ______

vtos ______

74

_____ 0.86

_____ .71

_____ .11

_____ .0084

76

1.17

.90

.078

.036

77

1.27

.22

.032

Cr20, .

MnO ________

NiO ________

CoO ________

74

. _ _ 0.0030

. ___ .35

.003

76

0.0023

6.84

.066

.0053

77

0.0041

3.00

.044

.006

CuO ________

SrO ________

ZrOj _______

Ag.0 _______

74

____ 0.0026

____ .019

____ .010

76

0.035

.022

.012

.0023

77

0.037

.02

.013

.0010
ANALYSES OF SAMPLES 63

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued

40-42. Nez Perce County. [Late Ttiassic. Sec. 34, T. 32 N., R. 5 W.], Lime 

Point. Analyst, H. C. Joharisen. Samples 6-8. ( Shedd, 1913, p. 119.) 

Shale.

43. Shoshone County. Precambrian, Wallace Formation. [SEi T. 47 N.. R. 4 E., 

NEj T. 46 N., R. 4 E.], 7 miles south of town of Wallace, Foolhen Ridge. 

Analyst, J. G. Fairchild. Specimen 106. ( Hobbs and others, 1965, p. 5, 

27, pi. 6.) Dolomite, argillaceous. Index and geologic maps.

Oregon

44. Clackamas County. [T. 6 S., R. 1 E.], about 1 mile from town of Marquam. 

Analyst, R. S. Edwards. ( Eckel, 1913, p. 308, 309.) Limestone, 10-25 ft 

thick. Use: Cement.

45. Douglas County. [T. 29 or 30 S., R. 6 W.], about 5 miles northwest of town 

of Riddle. Owner, Hanna Development Co. Lot B. ( Cremer. 1954, p. 2, 

5, j>.) Nickeliferous iron-bearing rock. Mineralogy. Tonnage estimated. 

Possible use: Source of ferronickel.

46. Jackson County. Paleozoic. Sees. 22, 23, 24, T. 39 S., R. 2W., north of 

Little Applegate River, Bear Gulch. USED sample 77. ( Hodge, 1938d, 

p. 282. 299, 305. 306, 310.) Limestone, black. Index map. Use: None.

47-54. Polk County. Sees. 11, 12, T. 8 S., R. 6 W., about 4 miles southwest of

town of Dallas. Portland Cement Co. Analyst and collector, R.K. Meade. 

( Williams, 1914, p. 61, 62.) Limestone beds about 10 ft thick. Tonnage 

estimated.

47. Core sample 1. Limestone, depth 50-60 ft.

48. Core sample 1. Limestone, depth 1-20 ft.

49. Core sample 6. Limestone, depth 0-10 ft. Possible use: Portland

cement.

50. Core sample 8. Limestone, depth 30-40 ft.

51. Limestone, brown; from quarry.

52. Limestone, dark-blue; from quarry.

53. Limestone. Chip sample from quarry. Possible use: Portland cement.

54. Limestone. Chip sample. Possible use: Portland cement.

55. Polk County. Sees. 1, 2, 11, 12, T. 8 S., R. 6 W., 3 miles from Bridgeport. 

Oregon Portland Cement Co., Dallas quarry. ( Stafford, 1904, p. 6, T_, 8, 

110; Oregon Dept. Geology and Mineral Industries, 1943, p. 66.) Limestone, blue, fine texture. Tonnage estimated. Use: Building none. 

Possible use: Cement.

56, 57. Sherman County. [T. 2 N., R. 16 E.] , south of town of Rufus. ( Eckel, 1913, 

p. 309.) Alternating layers of limestone and volcanic ash. Possible use: 

Cement.

56. Analyst, R. S. Edwards. Limestone, 1-2 ft thick.

57. Analyst, R. K. Meade. Volcanic ash.

Washington

58. Asotin County. Probably Late Triassic( Mills. 1962, p. 240). SEiSWi

sec. 19, T. 7 N., R. 47 E., near town of Anatone, Lime Hill. Analyst, 

A. A. Hammer. Sample 1. ( Shedd, 1913, p. 114-J16, 117, 250, pi. 21.) 

Calcareous shale, dark-to light-gray; about 50 ft thick. Index maps. 

Possible use: Portland cement.

59, 60. Chelan County. Nz sec. 10, SEj sec. 3, T. 27 N.. R. 15 E. Soda Springs 

deposit, Meal Cement Co. Drill hole 53. ( Danner, 1966, p. 82, 387-390, 

392, 397.) Limestone, light-gray to white, medium to coarsely crystalline. 

Mineralogy. Index and geologic maps. Former use: Cement. [For other 

analyses from same drill hole, see samples 292, 293, group B; sample 127, 

group D; sample 121, group FI.]

Footnotes of analyses on preceding page:

'Samples 47-50, iron oxide and alumina; 

sample 72, iron and aluminum oxides.

* Calculated from reported FeCOs, MgCOs, 

CaCO,, Fe, P, and (or) MnCOs.

s Oxide of iron.

4 Ignition loss, used as total HjO in computations.

5 At 105°C.

Washington Continued

59. Depth 78-93 ft.

60. Depth 44-68 ft.

61-70. Chelan County. NW* sec. 14, T. 27 N., R. 15 E. Rainy Creek deposit. 

( Danner, 1966, p. 82, 387, 393-_396, 397.) Limestone, white to gray, 

medium to coarsely crystalline. Mineralogy. Tonnage estimated. Index 

and geologic maps. Possible use: Portland cement.

61-63. Drill hole 54. [For other analyses from same drill hole, see

samples 294, 295, group B; samples 128, 129, group D; sample 

122, group FI.]

*61. Depth 149-152 ft. *Analysis suggests 16.4 percent more 

CaO and MgO than required for carbonate.

62. Depth 110-128 ft.

63. Depth 42.5-50 ft.

64-1 Drill hole 55. [For other analyses from same drill hole, see sample 

26, group C; samples 123-126, group FI.]

64. Depth 199.7-205 ft.

65. Depth 177.5-198 ft.

66. Depth 174-177.5 ft. 

*67. Depth 60.5-91.8 ft. *Analysis suggests 15.5 percent more

MgO and CaO than required for carbonate. 

68. Depth 44.5-51 ft.

69, 70. Drill hole 56. [For other analyses from same drill hole, see

sample 296, group B; samples 127, 128, group FI; samples 37, 

38, group Fj.]

*69. Depth 138-151.3 ft. * Analysis suggests 14.8 percent more

MgO and CaO than required for carbonate. 

70. Depth 25-32 ft.

71. Clallam County. Cretaceous and Tertiary, Soleduck Formation. [T. 28 N., 

R. 4 W., T. 29 N., R. 3 W., unsurveyed] , Grey wolf Valley. ( Danner, 

1966, p. 82, 428, 429.) Limestone, red. Index and geologic map.

72. Ferry County. [T. 36 N., R. 32 E.], a few miles west of town of Republic. 

Analyst, A. H. Cederberg. ( Landes, 1905 [1906], p. 381; Darton, 1909, 

p. 26.) Limestone, bluish, compact. Possible use: Cement.

73. Jefferson County. Soleduck Formation. Sec. 7, T. 27 N., R. 3 W. Tubal

Cain mine. ( Danner, 1966, p. 82, 428, 429.) Limestone, red. Index and 

geologic map.

74,75. Jefferson County. EarljK?) and middle Eocene, Crescent Formation. Center 

sec. 18, T. 26 N., R. 1 W. Pulali Point deposit. ( Danner, 1966, p. 16, 

19, 82, 426, 427, 447, 456.) Limestone, argillaceous, gray, fossiliferous. 

Index and geologic map.

74. Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample J 1-1. Composite chip sample.

75. Composite sample.

76,77. Mason County. Crescent Formation. Sec. 4, T. 23 N.. R. 5 W. Staircase 

deposit. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 421, 427, 428, 447, 

456.) Limestone, gray, fossiliferous; weathers red; beds 2-6 in. thick. Thinsection description. Chip sample. Index and geologic map.

76. Sample M 1-1 taken across 100 ft.

77. Sample M 1-2 taken across 30 ft.

'ignition loss.

7 RzO,.

'Alkalies.

9 COj, calculated from reported MgCOs 

and CaCOs .

"Sample dried at 110°-112°Q ignition 

loss 1,000°-1,100°C.
64 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 5. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing clay and carbonate each less than 75 percent; clay and carbonate each greater than

uncombined silica (Group E),common- and mixed-rock categories-continued

Chemical analyses Continued

Washington-Continued

Si02 _____________

MgO ______ __

CaO ______________

Ignition loss ___ __ _

Class _____________

CaO/MgO __________

78

46E40-98

. ______ 20.42

. ______ '6.60

. ______ 8 15.34

. ______ 23.04

. ____ _ 5 34.60

. ______ 100.00

._ ____ 9,19,69

79

46E40-61

19.64 

*4.83 

*14.37 

25.12 

5 36.04

100.00 

12.14,74

Calcareous 

dolomite

80 *81

46E40-57 46E24-26

20 . 10 2 . 16 

! 5.10 21.92 

3 14.64 1.02 

24.74 30.22 

5 35.42 44.62

100.00 99.94 

12,15,72 0,23,56

Dolomite Calcite

82

46E26-134

22.64 

13.28 

4 3.16 

4 31.38 

'28.08

98.54

0,37,63

Magnesian 

calcite

83

46E26-135

23.92 

13.84 

4 3.64 

4 29.63 

'27.25

98.28

1,39,60

Magnesian 

calcite

84

46E26-136

24.52 

15.28 

45.33 

4 26.13 

'26.32

97.58

0,42,58

Magnesian 

calcite

85

46E26-137

27.64 

16.08 

4 3.31 

4 26.39 

'24.33

97.75

1,45,54

Magnesian 

calcite

86

46E26-77

25.72 

2 15. 72 

*1.74 

4 29.70 

25.64

[98.52]

0,45,49

Magnesian 

calcite

87

46E26-76

15.62 

2 9.82 

4 2.30 

4 38.46 

32.82

[99.02]

0,27,68

Magnesian 

calcite

88

46E26-79

37.40 

2 25.14 

4 1.40 

416.64 

16.20

[96.78] 

0,66,24

89

46E26-80

20.32 

2 12. 20 

4 1.74 

4 34.80 

29.66

[98.72]

0,36,60

Magnesian 

calcite

Washington Continued

SiO2 _____________

A12O8 ____________

CaO ______________

S ________________

Total ________

Class _____________

90

46E26-78

. ______ 32.22

. I 2 20>52

. ______ 4 21.91

. ______ 20.34

. ______ [96.83]

. ______ 0,56,35

Magnesian

" calcite

91

46E26-62

23.54 

15.20

2.38 

30.22

[71.34]

0,41,56

Magnesian 

calcite

92 93

46E26-63 46E26-65

41.61 48.22

» « { ":S

2.83 2.24 

15.07 12.10

[82.35] 95.69 

3,67,26 12,63,13

94

46E26-67

32.48 

t 19.92

3.42 

20.41

19.77

[96.00]

0,57,33

Magnesian 

calcite

95

46E26-68

31.96 

18.00

2.97 

22.61

21.01

[96.55]

2,53,37

Magnesian 

calcite

96

46E26-69

40.5 

( 16.4 

\ 5.2 

2.7 

15.4

15.2

[95.4]

6,61,33

Magnesian 

calcite

97

46E26-28

26.04 

[ T 14.54

3.32 

29.34

[73.24]

2,42.51

Magnesian 

calcite

98

46E26-26

17.04 

/ 7.48 

\ 2.60 

3.91 

40.47

29.02

100.52

1,29.59

Magnesian 

calcite

99

46E28-14

39.80 

> 21.62

*1.39 

4 16.30 

*2.15

.41

'14.32

[95.99] 

4,62,32

100

46E29-42

19.9 

1 1.6

*41.0

32.5

"[98.1] 

13,13,71 

Calcite

101

46E29-10

24.83 

| T 5.77

36.79

30.36

97.75 

15,17,66 

Calcite

Washington Continued

Si02 ____ _ _____ .

Al-0, .

Fe20, .

Mad.

CaO ______________

H20+ _______ _ _ .

Total ______ .

Class __________ .

CaO/MgO ________ .

102

46E29-9

. ______ 16.72

. ______ 4.69

. ______ 3.11

. ______ 40.74

__ _ _ 33.37

____ _ 98.63

. ____ _ 5,22,71

*103

46E42-4

36.45

13.20 

16.85

14.08

[97.47] 

12,46,21

104 105

46E42-10 46E42-1

15.65 22.85 

f T 6.33 T 9.36

2.30 1.61 

40.25 34.86

.033 .046 

B 34.49 B 29.98

[99.05] [98.71]

0,27,72 7,27,62

Magnesian Magnesian 

calcite calcite

106

46E42-2

21.63 

T 6.21

1.29 

39.58

.055 

B 31.99

[100.76] 

11,18.69 

Calcite

107

46E42-3

18.46 

T 7.10

4.05 

36.34

.047 

B 33.41

[99.41]

7,21,70

Magnesian 

calcite

108

46E4 1-234

41.28 

| 10.31 

\ 2.33

3.12 

21.93

19.42

98.39

20,37,36

Magnesian 

calcite

*109

46E43-153

17.67 

4.61 

.92 

.62 

16.32 

30.92 

"3.86 

fi Trace

k 25.08

100.00

8,19,53

Calcareous 

dolomite

110

46E37-57

33.61 

[ T 7.45

.15 

32.67

.072 

B 26.12

[100.07] 

21,22.55 

Calcite

111

46E37-171

28.89 

7 6. 48

.96 

34.75

.068 

B 27.90

[99.05] 

18,19,59 

Calcite

112

46E37-35

0.63 

.55

4 .20 

4 40.85

25.50

'32.27

100.00 

0,27,73 

Calcite

113

46E37-131

21.15 

7 5.56

.49 

36.38

.017 

B 35.70

[99.30] 

12,21,66 

Calcite

See following page for footnotes.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis; Li2O,BeO,B2Os,Sc2O,,CoO,ZnO,Ga2Os,GeOz,As2O3,Y2Os,Nb-O5 ,MoO,,Ru,Rh,Pd,CdO,In-O,,SnO2,Sb2Oj, 

BaO ,Te02 ,CS2O, La-O, ,CeO2 .Pr-O,, Nd-O,, Sm2O,, Eu2O,, Gd£>t , TbjjO,, Dy2O3 , HojO,, Er2O,, Tm2O,, Yb-O,, Lu-jO,, HfD2 , Ta2O5 , WO,, Re^ ,Os ,Ir, Pt, Au, Tl2Os ,PbO,Bi2O,.ThO_.UO_: 

sample 110, CoO = 0.001 percent ]

Na-0__ __ __ __.

K2Q ____________ .

Ti02 __________ .

V205 .

Cr20, .

MnO __________ .

NiQ __ _____ _ .

CuO ___________ .

SrO ____________ .

Zr02 __________ .

AgjO .

104 

_____ _ _ _______ 0.22

_____ 3.07

_____ .17

_ __ .003

_ _ _ _ ___________ _ _ _ _ ______ .0024

_____ .27

.0038

_____ .0018

_ __ .032

____ .006

105 

0.67

5.25

.28

.003

.0037

.45

.0028

.0049

.028

.0084

106 

0.83

3.67

.39

.010

.0047

.80

.0044

.016

.036

.013

107 

0.47

3.23

.28

.0076

.0045

.45

.0028

.0047

.020

.010

110 

0.44

.24

.015

.0018

.10

.0026

.0082

.0092

.0072

.001

111 

1.39

.70

.23

.011

.0036

.11

.0032

.0069

.017

.0069

.0005

113

0.86

.18

.0092

.0019

.065

.0026

.0046

.013

.0051
ANALYSES OF SAMPLES 65

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

78-80. Okanogan County. Triassic. T. 35 N., R. 26 E., about 1.25 miles

northwest of town of Riverside. ( Bennett, 1944, p. 6-9, 11, 14-16, pi. 2; 

Bennett, 1945, p. 5, 6.) Deposit description: Dolomite, light-gray to 

gray to brownish-gray. Fresh sample from outcrop, fragments taken every 

5 ft, usually for a length of 50 ft. Tonnage estimated. Index and geologic maps. Possible use: General uses of dolomite; refractories, crushed 

stone.

78. NE^NWi sec. 26. Owner, N. W. L. Brown. Sample 69. 

79, 80. NWiSW| sec. 23. Samples 118, 108.

*81. Okanogan County. T. 35 N., R. 26 E., 3 miles west of Riverside, Johnson 

Creek. Analyst. A. A. Hammer. Sample 20. ( Shedd, 1913, p.^66, 

167, 245, pi. 21.) Limestone, yellowish-white. Index maps. *Analysis 

suggests 20.6 percent excess RjOj.

82-85. Pend Oreille County. Cambrian. Metaline Limestone( Mills, 1962, p. 38). 

[T. 39 N., R. 43 E.], 1 mile east of town of Metaline Falls, Sullivan 

Creek. Lehigh Portland Cement Co. ( Patty, 1921, p. 83, 84.) Shale, 

dark, thin-bedded. Use: Cement [implied].

86-90. Pend Oreille County. Paleozoic. [T. 39 N., R. 43-45 E.], near

Metaline Falls, Sullivan Creek. Inland Portland Cement Co. ( Bancroft, 

1911, p. 188, 190, 192; Eckel, 1913, p. 366, 367.) Shale, dark-blue 

or black. Index map. Use: Cement.

91-93. Pend Oreille County. T. 39 N., R. 43 E., Metaline Falls, Sullivan Creek. 

( Shedd, 1913, p. 180, 193, 194. 250. pi. 21.) Shale. Index maps.

91. Sample 9. Possible use: Portland cement.

92. Sample 8.

93. Analyst, A. A. Hammer. Sample 6. Shale, almost black, finegrained, stratified.

94-96. Pend Oreille County. [T. 39 N., R. 43 E.], Metaline Falls. Inland

Portland Cement Co. ( Krejci, 1914, p. 927, 936.) Shale, calcareous. 

Use: Portland cement.

97. 98. Pend Oreille County. T. 38 N., R. 43 E., near town of Cement. Jordan 

property. ( Shedd, 1913, p. 180, 183. 184. 245, pi. 21.) Limestone. 

Index maps. Possible use: Cement.

97. Sample 35.

98. Analyst, A. A. Hammer. Sample 26. Limestone, almost black, 

very fine grained.

99. San Juan County. Probably Cretaceous. [T. 37 N., R. 2 W.], northwest 

shore of Orcas Island. Analyst, A. H. Cederberg. Sample 4. ( Landes, 

1905 [1906], p. ^78; Glover, 1941, p. 217, 348, 349.) Shale. Possible 

use: Cement material.

100. Skagit County. Devonian( ?) part of Chilliwack Group. NE*NE* sec. 16, 

T. 35 N., R. 9 E., about 2 miles from town of Sauk. Portland deposit. 

Analysts, K. S. Johnson, Anthony Centenero. Sample 12. ( Popoff, 

1948, p. 2, 5, 8, 11, ^2, figs. 1. 2; Danner, 1966, p. 82, 269, 271, 

283, 284, 287, 288.) General: Limestone, white to dark-gray, mediumor coarse-grained, massive, uniform texture. Chip sample taken across 

1.0 ft. Tonnage estimated. Index and geologic maps.

101,102. Skagit County. Early Pennsylvanian part of Chilliwack Group. Center

sec. 2, T. 35 N., R. 8 £., about 1 mile by road from town of Concrete. 

Lone Star Cement Co. ( Hodge, 1938d, p. 13, 47, 48, 51, S2, 53; 

Danner, 1966. p. 82, 269, 271-J274.) General: Limestone, light- to 

dark-gray, dense to organoclastic and oolitic, well-bedded; about 500-

Footnotes of analyses on preceding page:

Iron and alumina.

Alumina and iron oxide.

By difference.

4 Calculated from reported MgCOj or CaCOj. 

s 950°-1.000°C; also called CO,. 

*CO,, calculated from reported MgCOj and CaCO3 . 

T RiO,. 

'Reported as calculated.

Washington Continued

800 ft thick. Thin-section description. Tonnage estimated. Index 

maps. Use: Cement.

*103. Stevens County. CambrianC?), Northport Limestone. NEaNW* sec. 35, 

T. 39 N., R. 39 E., 6 miles southwest of town of Northport. Ideal 

Cement Co. Diamond-drill hole 1; 828 ft drilled at inclination of -45°. 

( MiUs, 1962, p. 74. 96, 99. 100. 102, pis. 1, 4.) Unit description: 

Limestone, predominantly gray, fine-grained, bedded. Sample depth 

800-828 ft. Tonnage estimated. Index and geologic maps, geologic 

section. Possible use: None, rock impure. ^Analysis suggests 19.3 

percent more MgO and CaO than required for carbonate. [For other 

analyses from same drill hole, see samples 438, 439, group FI; samples 

1665-1676, group F,.]

104-107. Stevens County. Northport Limestone. NW$ sec. 35, T. 36 N., R. 39 E., 

3 miles north of town of Colville. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Samples S-115, 

S-117toS-119. (Mills, 1962, p. 12. 13, 167, ^68, 249. 261, 264, 

pis. 1, 6.) Limestone, dark-gray to black, fine-grained, medium-bedded, 

argillaceous; contains lenticles and layers of dolomitic limestone. Chip 

sample from outcrop. Index and geologic maps. Possible use: None, 

rock impure.

108. Stevens County. Tertiary. Sec. 21, T. 35 N., R. 39 E., 3 miles south 

of Colville. Analyst, A. A. Hammer. Sample 31. ( Shedd, 1913, 

p. 136. 251. pi. 21; Glover, 1941, p. 280, 350, 351.) Shale, lightgray, finely laminated. Index map. Possible use: Portland cement.

*109. Stevens County. Sec. 9, T. 32 N., R. 41 E., about 5 miles east of town of 

Chewelah. The Royal Serpentine Marble Co. Analyst, R. W. Thatcher. 

(Shedd, 1903, p. 124,225, 137, 142; Eckel, 1912, p. 171, 173.) 

[Dolomite] marble, dark, crystalline, fine-grained, stratified. Bulk 

density 2.817. Physical properties. Use: Dimension stone [implied]. 

* Analysis suggests 19.1 percent more MgO and CaO than required for 

carbonate.

110. Whatcom County. Devonian part of Chilliwack Group. West central part 

of sec. 21, T. 40 N., R. 5 E., east slope of Sumas Mountain. Sumas 

Mountain deposit. Analyst, C. S. Homi; spectrochemical analyst, 

C. E. Harvey. Sample W 18-3. ( Moen, 1962, p. 4, 8, 15, 95. 96, _99. 

119, pi. 1; Danner, 1966, p. 16, 19, 209, 210, 233-235, 453. 466.) 

Limestone, light-gray to dark-gray, generally dense. Chip sample taken 

across 270 ft. Index and geologic maps, geologic sections. Possible use: 

Concrete aggregate, ballast, road metal, riprap.

111. Whatcom County. Pennsylvanian part of Chilliwack Group. NWj sec. 5, 

T. 36 N., R. 8 E., about 17 miles north of Concrete, on northwest side 

of Dock Butte. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample W 28-4. ( Danner, 1966, p. 

16, 19, 82, 259. 260, 264. 454, 467.) Limestone, brown to buff, dense; 

interbedded with sandstone and argillite. Composite chip sample. Index 

maps. Possible use: None, deposit small, impure, and in remote area.

112. Whatcom County. Devonian to Early Permian, Chilliwack Group( Danner, 

1966). [T. 40 N., R. 4 E., near] town of Sumas. International Lime 

Co. Analyst, R. S. Edwards. ( Burchard, 1912, p. 695, pi. 1.) 

Limestone. Index map.

113. Whatcom County. Holocene. NWiSWj sec. 7, T. 40 N., R. 6 E. Silver 

Lake deposit. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample W 10-1. ( Danner, 1966, p. 16, 

19, 82, 438, 439, 453, 465.) Mud, soft, calcareous. ( Tufa intermixed 

with soil and other impurities.) Composite chip sample. Index and 

geologic map. Possible use: None, deposit small and impure.

'Alkalies, and so forth. 

10 Analysis on dry basis. 

"Above 110°C. 

u At 110«C.

"Sample dried at 110e-112»C; ignition 

loss 1,0000-1,100°C. 

14 CO,.
66 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho. Oregon, and Washington, containing 75 to 90 percent carbonate( Group FI). common- and mixed-rock categories

[ Samples of mixed-rock category indicated by an asterisk (*} . Chemical analyses arranged by State, quadrangle or county, and stratigraphic position]

Chemical analyses

SiOj _____

AljO, ____

Fe.0, 

MgO _____

CaO _____

NajO _____

K,0 ______

P205 _____

SO, ______

Total

Class _____

CaO/MgO__

Sip, _____

Al,0, 

Fe»Oi

MgO _____

CaO _____

Na»0 7 ___

K20 7

P»O

CO,' _____

SO, ______

Ignition loss*

NaCl+KCl 7

Total

Class _____

CaO/MgO _

SiO, _____

Al,0, 

Fe,0, ____

MgO _____

CaO _____

P,05 _____

CO, '_____

SO, _____

Ignition loss 9

NaCl + KCl 7

Total

Class _____ 

CaO/MgO _

SiO, _____

Al,0, 

Fe»O«

MgO _____

CaO _____

1

SOFtS-5

_______ 10.2

1.3

_______ 1.2

_______ .56

_______ 40.6

_______ .48

_______ .27

_______ 43.6

_______ [98.2]

_______ 7,17,74

14

50FX 

156-1

_______ 9.24

_______ 3.8

_______ 1.9

_______ 1.1

_______ 43.8

_______ .04

_ ______ 36.0

 _ (36.6)

_ __ _ .18

___ [97.1]

_______ 0,16,80

_ Calcite

27

50F X 

156-38

_______ 6.1

_______ 3.7

____ _ .90

__ . ____ 1.9

_______ 46.8

_______ .030

_______ .06

_______ (38.8)

_______ .90

_______ [99.2]

_______ 0,11,87 

Magnesian

calcite

40

50Fi 

156-85

_______ 6.2

_______ 3.7

_______ 1.1

_ _____ 1.9

 ____ 47.0

2

SOFiS-lO

8.4

.12

'.57

.54

45.0

.34

.20

S 43.2

98.4

Calcite

15

SOFj 

156-3

6.4

2.1

1.1

1.45

47.8

.018

38.8

.52

(39.2)

.10

[98.3]

1,9.88

28

50F X 

156-44

6.1

4.25

.75

2.3

46.9

.018

.62

(39.6)

.01

rqq 7 ~\

0,10,87 

Magnesian

calcite

41

50F! 

156-86

6.3

4.2

1.1

1.6

47.0

3

50F!29-2

hi. 55

1.37

46.24

[59.16]

Calcite

16

156-4

6.4

2.0

1.1

1.5

47.6

39.0

(39.4)

[98.2]

2,9,88

29

50FX 

156-47

6.8

3.7

.90

1.1

47.4

.027

37.4

.67

.14

[98.1]

0,12.85

42

50F, 

156-97

6.5

3.6

1.0

1.3

46.9

4

50Fj30-l

10.52

18.46

27.27

41.62

97.87

11,0,87

17

50FX 

156-19

7.4

3.11

1.55

.04

38.1

.62

(38.8)

[99.9]

1,11,86

Calcite

30

SOFj 

156-49

8.8

3.85

1.15

1.95

47.8

.039

Off 1

1.1

(37.6)

.50

[102.3]

1,13,84 

Magnesian

calcite

43

50Ft 

52-5

7.7

2.2

.68

.75

47.1

Alaska

567

50F!36-4 50F,36-19 50F,36-29

*13.18 *20.77 *22.84

4 1.36 4 .89 4 1.55

4 47.32 *44.06 4 41.80

'38.63 '35.57 *34.50

[100.49] [101.29] [100.69]

Alaska Continued

18 19 20

50F X SOFi 50FX 

156-20 156-21 156-22

7.1 8.4 10.1

1.17 1.45 1.60

1.4 1.45 2.25

_____ _____ .30

_____ _____ .32

.86 .82 ______

[100.4] [100.2] [98.5]

0,11.86 0,14,85 0.18,81

Calcite Calcite M^^a

calcite

A laska Continued

31 32 33

SOFj SOFj 50Ft 

156-50 156-51 156-52

7.0 7.4 6.2

3.55 3.05 2.95

1.15 .85 .85

47.8 47.8 48.1

.030 .030 .030

38.8 38.4 38.7

(39.2) (39.8) (39.5)

.70 .24 .08

[101.9] [100.4] [100.0]

0,11,88 1,10,87 0,10,87 

Magnesian _ . Magnesian

calcite calcite

Alaska Continued

44 45 46

SOFt 50F! 50Fi 

52-74 155-104 155-112

11.4 10.4 16.2

.85 1.7 1.8

.33 .37 .50

.05 .7 .65

47.6 47.60 44.25

8

50Fi52-21

7.1

2.3

.19

1.4

48.5

.22

.11

.03

.84

38.8

99.5

3,7,86

21

50F! 

156-23

6.4

3.23

.89

2.1

46.8

.26

.33

.023

39.0

.07

(39.2)

[99.1]

0,11.88

Magnesian

calcite

34

50F X 

156-55

5.8

3.85

1.15

2.4

45.1

.023

39.3

.67

(39.7)

.70

[99.0]

0,10,87 

Magnesian

calcite

47

50Ft 

155-105

18.7

2.0

.44

.45

42.75

9

50Fi52-24

8.6

2.5

.80

1.0

47.7

.83

.28

.03

1.16

38.2

101.1

3.9,85

Calcite

22

SOFj 

156-31

7.8

3.05

.96

1.8

47.0

.030

38.0

.08

(38.3)

.01

[98.7]

1.11.86

Magnesian

calcite

35

SOFj 

156-58

5.4

4.0

1.4

2.7

43.5

.021

39.5

1.0

(39.8)

.86

[98.4]

0.10,86 

Magnesian

calcite

48

52-107

10.1

2.35

1.16

1.15

46.5

10

50Fi52-40

7.9

1.3

.85

2.4

46.9

.63

.16

.03

.30

39.4

99.9

5,6,87

Magnesian

calcite

23

50F X 

156-32

10.0

4.05

1.45

1.8

44.2

.032

36.6

.11

(36.8)

.01

[98.2]

1.16.83

Magnesian

calcite

36

SOFj 

156-81

7.1

3.32

.78

2.02

46.2

.023

38.4

.62

(39.2)

< .01

[98.5]

0,12,87 

Magnesian

calcite

49

52-108

6.9

2.30

.80

1.05

49.0

11

50Fi52-6

16.2

2.5

1.2

1.2

43.6

1.1

.31

.09

.68

34.6

101.5

10,10,76

Calcite

24

50FX 

156-33

8.0

3.3

1.0

1.4

47.1

.029

38.3

.06

(38.4)

.16

[99.3]

1,12,87

Calcite

37

50Fi 

156-82

9.3

4.2

1.0

1.78

44.4

.020

36.8

.37

(37.8)

.70

[98.6]

1,15,83 

Magnesian

calcite

50

50Ft 

52-109

12.2

3.15

1.75

1.5

44.2

12

50Fi52-7

12.5

2.4

1.3

1.3

45.9

.60

.47

.04

.43

35.0

99.9

7,10,77

Calcite

25

156-35

14.0

5.85

1.45

2.4

40.1

.046

33.8

.12

(34.3)

.44

[98.2]

2.21,76

Magnesian

calcite

38

50F, 

156-83

9.9

4.4

1.0

1.45

43.0

.025

36.0

.47

(37.6)

.64

[96.9]

1,16,80

51

50F! 

52-111

6.4

2.65

.86

1.9

47.8

13

SOF^-S

16.4

3.3

2.0

1.2

42.3

.82

.62

.04

.10

32.2

99.0

8,15,70

Calcite

26

50F! 

156-36

6.9

3.75

.65.

1.7

46.6

.035

38.6

.06

(38.8)

.92

[99.2]

0.12.87

Calcite

39

50Fi 

156-84

10.5

5.1

1.3

1.65

43.8

.025

35.9

.24

(37.6)

.10

[98.6]

0,18,81 

Calcite

52

50Fi 

52-112

6.1

2.65

1.43

3.45

4C.5
ANALYSES OF SAMPLES 67

Table 6. Analyses of samples from Alaska. Idaho, Oregon, and Washington, containing 75 to 90 percent carbonate( Group Ft), common- and mixed-rock categories Continued

Chemical analyses Continued 

A laska Continued

43 45 46 47 48 49

50Fj 50F! SOFj SOFj SOFj 50Fj 50Fi SOFj 50?! 50Fi 50?! 50Fi 50?! 

156-85 156-86 156-97 52-5 52-74 155-104 155-112 155-105 52-107 52-108 52-109 52-111 52-112

Na»0 ______ .

p,O.

SO, _____ .

.___ 38.8

.___ .25

. (39.4)

0.035

38.0

.33

*OQ r\\

.70

_____ <0.01 _____

_____ < .01 ______

39.1 _____ ______

.08 _____ ______

(39.4) ______

.08 _____ ______

0.08 0.07 0.02 0.01 0.01 0.01 0.01 0.01

Total_______[99.7] [99.3] [98.6] [58.4] 

Class ___________ 0,10,87 0.11,86 0,11,87 3,8,87

CaO/MgO Magnesian 

calcite Calcite Calcite Calcite

[60.2] [60.8] [63.5] [64.4] [61.3] [60.1] [62.8] [59.6] [60.1]

10,3,85 7,6,86 12,7,80 15.7,77 5,10,85 2.9,89 5,14,81 1,10,89 0,11,87

Macnesian Macnesian Calcite Calcite Calcite Calcite Calcite Calcite Calcite e, . e, .

calcite calcite

Insoluble. 

'insoluble (HC1).

*( R.M. Moxham, written common., Sept. 11, 1964.) 

4Calculated from reported MgCO, and (or) CaCO,.

5 Includes ignition loss due to oxidation of FeO.

*COj, calculated from reported MgCOj and (or) CaCO,.

T Gravimetric determination.

1 400e-1,000°C, direct combustion.

'Not included in total.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska A laska Continued

1,2. Anchorage quadrangle. Holocene. [T. 17 N., R. 1 W.] , Knik Arm area. 

Analysts, E. A. Nygaard. S. M. Berthold. ( Moxham and Eckhart, 1956, 

p. 3,6,8,13,^4,15,17-19,pl.l.) Tonnage estimated. Index and geologic 

maps, columnar sections of marl deposits. Possible use: Portland cement.

1. [Sec. 8], west end of Lucile Lake. Sample 8, auger hole 1. Marl, 

white to light-gray, plastic to sticky; 7 ft thick; overlain by 1-6 ft of 

mud. [For another analysis from same drill hole, see sample 4, group 

B.]

2. [Sec. 12], Edlund deposit, adjacent to Wasilla Lake. Sample 1, auger 

hole 1-GS. Marl; mostly light gray to cream colored when wet; white 

when dried; fine grained; uniform in composition; 21 ft thick near 

center of deposit. Isopach map, geologic section. [For other analyses from same drill hole, see sample 1, group C; sample 14, group Fj.]

3. Chandler Lake quadrangle. [Early and Late Mississippian. Pennsylvania^?) 

and Permian], Lisburne [Group]. [1.5-2.3. 3.4-4.6], Chandler Lake. 

Sample 45A Gr8. ( Gryc, 1948, p. 1, 2.) Limestone.

4. Charley River quadrangle. [Precambrian], Tindir Group. [About 21.3-21.8, 

2.3-2.9], divide west of Pleasant Creek. Analyst, J. G. Fairchild. Sample 

30AMU51. ( Mertie, 1933, p. 350. 369, 383, 384, pi. 7.) Dolomite, 

siliceous. Mineralogy. Index and geologic maps.

5-7. Craig quadrangle. Analyst, R. K. Bailey. Record 2952. ( Wells, 1937, 

p. 47.) Index and geologic maps.

5. Late Silurian. [9.9-10.1, 10.1-13.85]. north side of Heceta Island. 

Vermont Marble Co. claim. Deposit 36. ( Burchard, 1920, p. 39, 

76, 22' Pls- * 3 -) Limestone, mottled, fine-grained, dense; some 

limestone conglomeratic, some fossiliferous.

6. Paleozoic. [10.2, 17.5], Marble Island, 1.5 miles south of Tokeen. 

Vermont Marble Co. Deposit 34. ( Burchard, 1920, p. 15, 37. 72, 

J73, pis. 1, 3.) [Limestone] marble, brown; contains cherty material. 

Mineralogy, thin-section description.

7. Paleozoic. [About 22.35, 0.7], Prince of Wales Island, Dickman Bay. 

Alaska-Shamrock Marble Co. Deposit 49. ( Burchard. 1920, p. 15, 

38, 86-J58, 90, pis. 1, 5.) [Limestone] marble, mottled. Mineralogy, thin-section description. Possible use: Interior decoration. 

8-13. Healy quadrangle. Devonian^?). [5.8-6.7, 7.8-8.0], headwaters of West 

Fork of Windy Creek. Analysts. Leonard Shapiro, L. E. Reichen, 

S. M. Berthold. ( Moxham. Eckhart, and Cobb, 1959. p. 69. 88-91. pi.11.) 

Limestone, dark- to bluish-gray, fine-grained, very dense, massive, locally 

banded; weathers light gray. Chip samples. Index and geologic maps, 

geologic sections. Possible use: Portland cement.

Lab. No. Sample Lab. No. Sample

8. 501920 C 491 11. 1952 C 551

9. 1923 C 494 12. 1953 C 555 

10. 1930 C 502 13. 1954 C 559

14-42. Healy quadrangle. Middle Devonian. [5.8-6.7. 7.8-8.0], near headwaters 

of West Fork of Windy Creek. ( Warfield. 1962, p. 3, 12. 13. 15-17. ^18.

19, 20.) Deposit description: Limestone, dark-gray to blue-gray, finegrained, dense, recrystallized; contains abundant calcite veinlets. Estimated thickness 3,100 ft. Representative samples from channel 50 ft long. 

Index and geologic maps. Possible use: Portland cement, mineral wool.

14.

15.

16.

17.

18.

19.

20.

21.

Sample 

501

503

504

519

520

521

522

523

Sample 

22. 532

23.

24.

25.

26.

27.

28.

533

534

536

537

539

545

548

Sample

30. 551

31. 552

32.

33.

34.

35.

36.

553

554

558

561

588

43. Healy quadrangle. Middle Devonian. [5.8-6.7, 7.8-8.0], near headwaters 

of West Fork of Windy Creek. Analyst, H. E. Peterson. Sample 164. 

( Rutledge and others. 1953. p. 4. 117, 118. 132, figs. 1, 3, 41, 42.) 

Limestone, gray, recrystallized. Index and geologic maps. Possible use: 

Portland cement, rock wool.

44. Healy quadrangle. Paleozoic, possibly Devonian. [Sec. 7. T. 17 S.,

R. 7 W., unsurveyed]. pinnacle between Bain and Little Windy Creeks. 

Analyst, H. E. Peterson. Sample 172. ( Rutledge and others, 1953. p. 4, 

93, Jil6, 117, figs. 1, 3, 41.) Limestone, medium- to dark-gray, finegrained; contains calcite veinlets; fractured and weathered where exposed. 

Index and geologic maps.

45-47. Healy quadrangle. Paleozoic, possibly Devonian. [T. 17 S.. R. 7 W., unsurveyed], along course of Bain Creek. Analyst, H. E. Peterson. Samples 

W-ll, W-10, W-12. ( Rutledge and others. 1953. p. 4, 93. 116. figs. 

1, 3, 35, 41.) Limestone, cherty; outcrop samples. Index and geologic 

maps. Possible use: None.

48-52. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8. 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91. 93, 

96,^05, 123, figs. 1, 3, 35-37, 41*) Limestone, black, fine-grained. 

Total depth of diamond-drill hole 629 ft. Index and geologic maps, 

geologic sections, log of drill hole 4. Possible use for deposit: Portland 

cement, magnesia content often high so that complex mining and thorough 

blending may be required. [For other analyses from same drill hole, see 

sample 53, this group; sample 3, group C; samples 221-336. group F».]

48. Limestone; contains calcite veinlets; depth 620-629 ft.

49. Limestone; contains calcite veinlets; depth 615-620 ft.

50. Depth 610-615 ft.

51. Limestone; contains few calcite veinlets and some shale partings; 

depth 600-605 ft.

52. Limestone; contains few calcite veinlets and some shale partings; 

depth 595-600 ft.
68 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing 75to 90 percent carbonate (Group FI). common- and mixed-rock categories Continued

Chemical analyses Continued

Alaska Continued

SiOj ___ _

A120, __________

Mga ___________

CaO ____________

SO, 

Total ______

Class ___________

CaO/MgO ___ _

Si02 __________

A1-DFe20, __________

MgQ ________ - ___

CaO ____________

H20 __ _

PtP, _ _ 

C02 ___________

F ______________

LessQ ___________

Total ______

Class ___________

CaO/MgO ________

53

50F! 

52-176

6.9

3.1

1 13

5.85

42.4

_ [59.4]

_ 0.12,88

Magnesian

calcite

66

50F t 

52-60

ho. 6

J !-0

.6

49.2

'38.1

99.5

_ (9,3)86

Calcite

54

50Fi 

52-231

9.4 

2.2

1.8 

46.1 

.01

[59.5] 

6,7,86 

Magnesian 

calcite

67

50F, 

155-147

10.0 

f 3.40 

1 1.40 

.9 

46.4

[62.1] 

2,14,83

Calcite

55

50F 1 

52-234

10.4 

3.10 

1.5 

4.5 

41.4 

.01

[60.9] 

3,13,83

Magnesian 

calcite

Alaska68

50F, 

155-138

10.4 

2.43 

.57 

.1 

47.0

[60.5] 

5.9,84

Calcite

56 57

50F! 50f 1 

52-235 52-256

13.8 7.2 

2.50 3.3 

.85 .80 

1.3 2.85 

44.3 43.3 

.01 .01

[62.8] [57.5] 

8,10.82 0,12,83

_ , . Magnesian Calcite 6, . calcite

Continued

69 70

50F! 50Fi 

155-140 105-3

10.8 hi. 32 

1.52 ______

.28 ______

.1 f.40 

48.2 T 48.85

_____ T 38.78

[60.9] [99.35] 

8.5.86 (11.0)88

Calcite Calcite

58

50Fj 

52-275

9.95 

3.15 

.61 

1.1 

47.1 

.005

[61.9] 

4,11,84

*71

50F! 

124-23

^9.71

19.08 

33.60

'33.82

[96.21] 

10.0.72

Calcareous 

dolomite

59

50F, 

154-43

7.5 

3.75 

1.17 

2.3 

44.9 

.01

[59.6] 

0,13,85

Magnesian 

calcite

60

50Fi 

154-44

6.3 

3.2 

.92 

2.7 

46.6 

.01

[59.7] 

0.11,88 

Magnesian 

calcite

61

50F! 

154-50

5.9 

3.0 

.82 

2.5 

46.8 

.01

[59.0] 

0.10,89 

Magnesian 

calcite

62

50F! 

154-124

7.4 

2.28 

.72 

3.3 

46.2 

.40

[60.3] 

3.9.87 

Magnesian 

calcite

63 64

50F! 50F, 

154-127 155-3

9.5 13.9 

4.07 2.23 

1.73 .97 

5.3 .5 

40.4 43.9 

1.76 .01

[62.8] [61.5] 

0,16,79 9,9,79

Magnesian c 

calcite

Idaho

72

4-3

10.41 

3.57 

1.41 

1.69 

44.39 

'l.OO

"37.01

99.48 

3,14,83

Magnesian 

calcite

73

IIP, 

4-2

15.06 

2.03 

.68 

.55 

44.76 

*.60

"35.89

99.57 

11,8.81

Calcite

74

IIP, 

4-14

17.70 

3.96 

*1.61 

16.76 

21.95

'38.15

100.13 

9.17.74

Dolomite

Idaho C on tinued

Si02 ___________

A120, ___________

FeO ____________

Mga ___________

CaO ____________

Na20 

V /~\

H20 ____________

Ti02 ____ ___

P20« ___________

MnQ. _ 

COj ___________

F _ _

U ___ _ _

LessO __________

Class ___________

79

HFjlO-8

*11.0

4 4 1

'.86

.6

46.5

1.35

_ "33.9

98.49

'.072

_ [98.4]

*80

llFi45-41

4.30

8.46 

42.07

T16.56

23.60

7 3. 47

[98.46] 

4,3,51

Calcareous 

dolomite

81

llF t19-5

11.44 

.04

7 18. 66 

T 27.39

None

T 41.87 

None

99.40 

(11,0)88

Dolomite

82 83

11F,19-12 llF^g-10

_____ 11.02

24

_____ .08

Trace 4.73 

T 43.79 47.39

||

T 34.37 33.71 

None ______

n .042 ______

98.69 [99.04] 

(20,0)78 9,4,75

_ , . Magnesian Calcite ^ calcite

84

HFil9-ll

14.77

} ...

T 4.23 

T 40.62

T 36.58

99.88 

9,10,81

Magnesian 

calcite

85

llFil9-16

13.84

Us

10.59 

33.44

.10

"37.82

99.01 

9,9,82

Calcareous 

dolomite

86

llFi35-34

"ll.9

1 "

1.3 

45.0

*38.0

[99.6] 

6.10.83

Calcite

87

llFi35-31

B 4.0

15.7

.8 

37.2

*42.0

[99.7] 

0.18.68

Calcite

75

11F, 

10-2

14.5

T 9.66 

T 35.85

T 38.69

[100.3] 

12.4,84

Calcareous 

dolomite

76 77

llFi llFj 

10-3 10-7

10.1 *10.9

o I * 3 -l 

8 { '.93 

T 6.60 .7 

T 42.03 46.5

_____ .86

T 41.97 U35.1 

_____ .15

_____ .024

_____ 98.26

_____ T .063

[101.5] [98.2] 

8.2.90 (4,12)80

Magnesian _ , . 6 Calcite calcite

65

50F! 

52-59

he. 2

3.2 

40.9

34.4

99.9 

(8,15)74

Magnesian 

calcite

78 IIP,

10-9

$ 12.6

 i!i

.5 

45.8

.91 

"34.3 

.12 

.011

100 . 14 

T .051

[100.1] 

(3,16)78

Calcite

Oregon

88

36F!l-8

16.84

.43 

44.86

'36.58

99.95 

15.4.81

Calcite

89 90

11.21 8.99

!

.15 3.20 

.17 1.12 

None ______

.52 2.19 

49.82 45.98

.21 ______

.05 ______

.02 ______

38.39 '38.87

Trace ______

"100.54 100.35 

It. 1,87 2.12,85

Magnesian Calcite B, . calcite

91

1-18

9.84

2.86 

1.02

2.31 

45.45

'38.31 

.02

"99.81

'insoluble.

'insoluble, includes SiO2 and RjO} .

3Acid insoluble.

4 Reported as RjOj.

'Reported as oxide of iron.

'FeasFe^,.

'Calculated from reported MgCOs ,CaCO$,P,C, and(or) F.

8 Reported as ignition. 

'ignition loss. 

"Reported as calculated. 

"Calculated from reported CaCOs andMgCOj, 

approximate mineral composition. 

8 Acid insoluble (chiefly SiOj) . 

Reported as from total Fe.

Ignition loss less CO2 . 

B Loss on ignition (chiefly CO*) . 

BSO,.

"Carbon determined by combustion. 

M SrO=none, mere traces not determined; UjO= trace, FeS2 = trace. 

"98.81 percent in text.
ANALYSES OF SAMPLES 69

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued Idaho Continued

53-64. Healy quadrangle. Paleozoic, posiibly Devonian. [Sees. 8, 17, T. 17 S..

R. 7 W., unsurveyed]. southern slope of Alaska Range in southeastern corner 

of Mount McKinley National Park. Northern Empire Development Co. 

Analyst, H. E. Peterson. Index and geologic maps, geologic sections, logs 

of diamond-drill holes. Possible use for deposit: Portland cement, magnesia 

content often high so that complex mining and thorough blending may be 

required.

53. Drillhole 4. ( Rutledge and others, 1953, p. 4, 91, 93, 96, 104. 

123, figs. 1, 3, 35: 37. 41.) Limestone, black, fine-grained; 

contains few calcite veinlets and brown shale partings; depth 

270-275 ft. Total depth of diamond-drill hole 629 ft. [For 

other analyses from same drill hole, see samples 48-52, this 

group; sample 3, group C; samples 221-336, group FI.] 

54-58. Drill hole 6. ( Rutledge and others. 1953. p. 4, 91. 93. 97. 105, 

106, 123, figs. 1, 3, 35, 36, 38, 41.) Total depth of diamonddrill hole 265 ft. [For other analyses from same drill hole, see 

sample 22, group B; samples 337-379, group F».]

54. Limestone, black; shale partings; depth 264-265 ft. Shale, 

black, soft; depth 263-264 ft.

55. Limestone, black, fine-grained; depth 230-235 ft.

56. Limestone, black, fine-grained; depth 225-230 ft.

57. Limestone, black, fine-grained; contains calcite veinlets 

and brown claylike residue; depth 120-125 ft.

58. Limestone, black, fine-grained; contains calcite veinlets;

depth 25-30 ft.

59-61. Drill hole 8. ( Rutledge and others, 1953, p. 4. 91, 93, 98, 109. 

123. figs. 1, 3, 35-37, 41.) Limestone, black, fine-grained: 

contains few calcite veinlets and shale partings. Total depth of 

diamond-drill hole 395 ft. [For other analyse* from same drill 

hole, see samples 11-13, group E; samples 419-491, group Fj.J

59. Depth 375-380 ft. 61. Depth 340-345 ft.

60. Depth 370-375 ft.

62, 63. Drill hole 9. ( Rutledge and others, 1953, p. 4, 91, 93, 98, 99, 

111. 112, 123, figs. 1, 3, 35, 36, 39. 41.) Total depth of 

diamond-drill hole 620 ft. [For other analyses from same drill 

hole, see samples 23-25, group B; samples 4, 5, group C; sample 

14, group E; samples 492-608, group F».]

62. Limestone, dark-gray; contains calcite veinlets; depth 560- 

565ft.

63. Limestone, gray; contains some calcite veinlets and some

brown claylike residue; depth 548-550 ft.

64. Drill hole 11. ( Rutledge and others, 1953, p. 4, 91, 93, 100, 101. 

114. 123, figs. 1, 3, 35, 36, 40, 41.) Limestone, black, finegrained; very little calcite; some weathering; depth 270-275 ft. 

Total depth of diamond-drill hole 284 ft. [For other analyses 

from same drill hole, see sample 6, group C; sample 15, group 

E; samples 649-702. group F».]

65, 66. Healy quadrangle. [Devonian. Sec. 9, T. 17 S., R. 7 W., unsurveyed],

about 2 miles southwest of Windy Station. Analyst, M. L. Sharp. Samples 

6, 7. ( Waring, 1947, p. 4, 6-J5.) Limestone, dark-gray; calcite veins; 

about 100 ft thick. Index maps.

67-69. Healy quadrangle. Triaisic. West Fork of Chulitna River, Broad Pass region. 

Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 87, 118-120, 

123, figs. 1. 3, 26, 43, 44.) Outcrop description: Limestone, white to 

gray, fbssiliferous, fractured and weathered. Possible use: Cement 

material, rock wool.

67. [2.3-2.5, 3.3-3.75J Sample 173. Limestone, crystalline. 

68,69. [2.45-2.75, 2.85-3.3J Samples 189, 187. Limestone, interbedded with shales and siliceous material.

70. Port Alexander quadrangle. Triaisic. [About 14.2, 15.9], Kuiu Island, 

Keku Straits, about 3 mites southwest of Point Cornwallis. Analyst, 

J. G. Fairchild. Sample 14. ( Buddington, 1926, p. (51.) Limestone.

*71. Sitka quadrangle. Paleozoic. [Sec. 29, T. 48 S., R. 66 E.], Admiralty

Island, beach south of Marble Cove. Analyst. R. K. Bailey. Record 2952. 

( Burchard, 1920, p. 15. 53. pis. 1. 2; Wells, 1937, p. 47.) [Dolomite] 

marble, blue and white speckled, medium-grained. Mineralogy, thinsection description. Index and geologic maps. * Analysis suggests 17.1 

percent more CaO than required for carbonate.

Idaho

72, 73. Bear Lake County. Jurassic, Twin Creek Limestone. T. 11 S., R. 44 E.,

Georgetown Canyon. Analyst, W. C. Wheeler; collector, R. W. Richards. 

Record 2794. ( Clarke. 1915, p. 239; Mansfield, 1927, p. 2, 263, 332. 

pis. 1, 9, 12, 19.) Limestone. Index and geologic maps, geologic section, 

generalized columnar section. Possible use: Portland cement.

74. Bear Lake County. Pliocene, Salt Lake Formation. Sec. 35, T. 12 S.,

R. 43 E., about 0.5 mile southwest of town of Bern. ( Mansfield, 1927, 

p. 2, 110, 111, pis. 1, 9, 12, 19.) Marl, white, dense, very fine; free of 

grit; 1.5-2 ft thick. Index and geologic maps, geologic section, generalized 

columnar section.

75, 76. Bonneville County. Early Cretaceous. ( Savage, 1961, p. 26, J76, figs. 3, 

9.) Limestone. Geologic map, correlated columnar sections.

75. Peterson Limestone. Sec. 1, T. 3 S., R. 45 E., northwest of mouth of 

McCoy Creek. General: Dolomitic limestone, fbssiliferous, thinbedded to massive; weathers grayish white; contains calcite veins.

76. Draney Limestone. [T. 2 S.. R. 44 E.J , Jensen Pass. General:

Limestone, light-gray, fossiliferous, fine-grained or lithographic, 

almost a dolomite locally; weathers white.

77-79. Bonneville County. Early Cretaceous, Bear River Formation. Sec. 4,

T. 1 S., R. 42 E., Fall River area. Collector, J. D. Vine. ( Bell, 1963, 

p. A6, A2B.) Limestone, gray, fine-grained; contains much organic matter. 

Mineralogy.

77. Lab. No. W66873.

78. Lab. No. W67247.

79. Lab. No. W90218.

*80. Caribou County. Permian, Phosphoria Formation, [Meade Peak Phosphatic 

Shale Member. T. 7 S., R. 43 E.], near Soda Springs. Ballard mine. 

No. S73. ( Emigh, 1958, p. 21, £2, 24-26. figs. 1, 5.) [Phosphatic 

shale], top of bed. Mineralogy, thin-section description. Index map. 

^Analysis suggests 38.4 percent phosphate.

81, 82. Custer County. Analyst, R. C. Wells. ( Ross, 1947, p. 1089, 1095, 1107,

1108, 1114-1116, 1118. pis. 1, 3, 12, 13.) Dolomite and limestone, darkblnish-gray, fossiliferous. Photomicrographs. Index and geologic maps, 

geologic sections, detailed measured sections.

81. Late Devonian, Jefferson Dolomite. [T. 9 N., R. 22 E.] , wen side of 

Borah Peak. Analysis NC 22. Sample: Dolomite, light-colored.

82. Mississippian. [T. 9 N., R. 24 E., possibly] southeast of peak near 

Swauger Lakes. Analysis NC 39.

83, 84. Custer County. Missiisippian. T. 6 N., R. 23 E., southwest of town of

Mackay, Alder Creek district. ( Umpleby, 1917, p. 12, £9. 70, 93, 95, 

pis. 1, 7.) General: Limestone, blue, massive and semimassive; chert in 

lower members. Index and geologic maps.

83. Analyst, W. C. Wheeler. Lab. No. 2851. (Umpleby, 1914,

p. 308-310 ,_329j Clarke, 1915, p. J39.) Bulk density 2.786.

84. Empire mine. Analyst, J. F. Kemp. ( Kemp, 1907, p. 6.) Geologic 

sections.

85. Cutter County. T. 15 N., R. 13 E., [unsurveyed], about 1 mile southwest of 

town of Ivers. Analyst. J. G. Fairchild. Lab. No. C927. ( Newhouse, 

1934, p. 2, 69, 70, 72, pi. 1.) Dolomitic limestone from quarry. Mineralogy. Bulk density 2.884. Index map, geologic sections. Use: Flux.

86,87. Nez Perce County. Late Triassic, Martin Bridge Formation. NW? sec. 34, 

T. 32 N., R. 5 W.. Lime Point. Analyst, Huey-rong Hsi. Sample 2Hml, 

average of six samples; sample 2Jm. ( Savage, 1965, p. 18a, 18b, 19, 20, 

pis. 1, 2, fig. 1.) [Limestone.] Tonnage estimated. Index and geologic 

maps, geologic section. Possible use: Aggregate, ballast, portland 

cement, flux, lime.

Oregon

88. Baker County. Probably pre-Carboniferous, limestone in Burnt River Schist. 

Sec. 11, T. 12 S., R. 43 E., 3.75 miles south of town of Durkee. Nelson 

deposit. (Hodge, 1938d, p. 154, 199, 236-238, 240.) General: Limestone, interbedded with chert and argillite. Index and geologic maps.

89. Baker County. Triassic. Sec. 3, T. 12 S., R. 44 E., about 5 miles from 

town of Weatherby, Burnt River Canyon on Sisley Creek. Analyst, 

J. G. Fairchild. Record 63-D. ( Moore, 1937, p. 133, 140. 141, pi. 1; 

Wells, 1937, p. 58, j>9.) Limestone, light-gray to white, fine-grained to 

coarse-granular, recrystallized. Bulk density 2.70. Tonnage estimated. 

Index map. Possible use: Cement.

90, 91. Baker County. Probably Triassic. Sees. 27, 34, T. 13 S., R. 44 E., near 

town of Lime7 West of Oregon Portland Cement Co. quarry. ( Hodge, 

1938d, p. 154, 199, 201, 206, 213, J215, 216.) General: Limestone,white, 

powdery; average thickness is probably less than 1 ft. Index and geologic 

maps. Possible use: Cement.

90. Analysts, G. C. Ware, Kenneth McCleod. USED sample 4. Analysis 

used in computations.

91. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]
70 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6.-Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing 75 to 90 percent carbonate (Group F.), common- and mixed-rock categories Continued

Chemical analyse* Continued

Oregon Continued

92 93

36F.1-43

SiO, __________

Al,0, .

Fe,0, .

FeO ________ .

MgO .

CaO _______ .

Na,0 _______ .

K,0 .

H,0 __________

TiO, __________

P.O, .

MnO __________

CO, .

S _____________

SrO ________ .

FeS*

Total ___ .

Class _______ .

CaO/MgO _____ .

SiO, _______ .

Al,0, .

Fe.0. .

MgO _.

CaO _______ .

H.O+ _______ .

P.O, .

MnO _______ .

CO, 

S ____________

Total ____

Class _________

CaO/MgO ______

13.55

5.49

1.17

3.14

40.22

36.36

99.93

2,18,80

Magnesian

 calcite

OregonContinued

105

36F.32-13

7.52

2.77

__ 1.05

1.19

__ 49.43

37.64

99.60

__ 1,10.85

Calcite

14.60 

4.91 

.83

3.53 

40.06

'35.69 

.03

99.65

94

36F.1-14

10.92 

3.21 

1.63 

.25 

.85 

45.36 

.22 

.45 

.96 

.20 

.07 

.03 

36.24 

"Trace 

None 

None 

.14 

.14

100.67 

3,13,82

Calcite

95

36F.1-51

16.54 

1.84

.88 

44.95

T 35.29

[99.50] 

13,6.80

Calcite

96 97

36Fj3-29 36F.6-1

14.88 10.57 

4.09 4.27 

J1.63 2.96

4 .63 1.35 

4 43.69 42.97

4 34.98 33.47

99.90 95.59 

6,15,79 0,19.76

Calcite Calcite

98

36F.6-2

40. 58

} '' * (

41.79 

4 44.40

4 36.81

[98.86] 

(2.15)83

Calcite

99

36F.7-1

9.40

None 

.64 

49.12 

.15

.61 

Trace

Trace 

38.83 

"None 

None 

None 

None

99.85 

8,3.88

Calcite

100

36F.15-11

23.86 

} .3,

Trace 

41.83

.46

32.57

99.04 

23,1.74

Calcite

101

36F.15-8

17.46 

49 ;55

8.47 

37.02

.47

34.86 

.02

99.34 

16,3.76

Magnesian 

calcite

102 103

36Fi27-4 36F.28-1

14.56 12.28 is } «

4 1.07 4 3.90 

4 40.72 4 43.60

4 33.14 4 38.49

[97.79] [100.71] 

2.23.75 8.7,86

Calcite Calcite

104

36F.29-3

9.3 (a

§ 46.1

[63.2] 

0,17.80

Calcite

Washington

106

46F.2-15

7.95 

I *1.88

3.71 

44.51

.050

"40.67

[98.77] 

5,7,87

Magnesian 

calcite

107

46F.2-16

5.93 

"l.OO

.51 

47.21

.031

"41.82

[96.50] 

4,7.85

Calcite

108

46F.2-9

4.60 

*1.85

1.10 

47.10

.017

"41.50

[96.17] 

2,8,86

Calcite

109 110

46F.2-10 46F.2-3

4.53 9.82 

*1.70 2.24

1.00 .79 

46.20 48.33

"41.52 '38.18

[94.96] 99.36 

2.9.85 6.7.85

Calcite Calcite

111

46F.2-25

16.01

1.11 

43.83 

.23

.117 

.02

34.59 

.102

[98.84] 

12.8,78

Calcite

112

46F.4-69

13.01

.83 

46.78

.068

"37.29

[99.19] 

11,4,84

Calcite

113

46F.4-66

9.51 

11 1.61

.58 

48.91

.035

"38.90

[99.44] 

7,4.87

Calcite

114

46F.4-14

6.74 

f 2.55 

[ 1.38 

.64 

49.64

'38.67

99.62 

1,11.85

Calcite

115 116

46F.4-85 46F.4-83

17.00 13.84 

| *2.57 *3.69

.97 1.02 

44.64 45.39

.074 .073

"34.89 "35.32

[100.14] [99.33] 

13,8.78 8.11,78

Calcite Calcite

117

46F.4-86

'15.21

1.46 

46.08

T 35.71

[98.46] 

(15,0)81

Calcite

Washington Continued

SiO, _________

Al,0, 

Fe.0, 

MgO _________

CaO _________

Na,O _ _. __ _

K,0 

118

46F.4-88

__ '18.50

1.68

43.31

119

46Fj4-87

'13.40

1.96 

44.79

120

46F.4-72

15.61 

3.83 

1.63 

2.00 

42.80 

.15 

.17

121

46Fj4-33

11.71 

2.33 

.47 

.62 

45.35

122 123

46F.4-42 46Fr4-52

9.06 16.89 

3.12 1.36 

1.74 .70 

1.47 .69 

46.77 45.27

Ignition loss

Total _

Class ____

118

46F.4-88

T 32.02

[95.51] 

(18.0)72

119

46F.4-87

T 36.55

[96.70]

(13,0)82

Magnesian 

calcite

120

46F.4-72

33.65

[99.84]

7.15.73

Magnesian 

calcite

121 122

46Ff4-33 46F.4-42

38.62 36.55

99.10 98.71 

7,10,82 2,14,80 

Calcite Calcite

123

46F.4-52

35.48

100.39 

14.6,79 

Calcite

See following page for footnotes.

Spectrochemical analyses

BaO,TeO,,Cs,O,LajO,,CeO,,Pi,Ot ,Nd,O,,SmjO,.Eu,O,.Gd,O,,Tb,O,.DytO,,HotO,,ErjO, 1 TmjO,,

Na,O ______________ _

K,0 

TiO, _____________________

v,os _____ _

Cr,0, __ 

MnO _________________ _ _

NiO ________ _ _

CuO ____________________ ___

SrO _____________________

ZrO, ___.

Ag,0 .

106

_______________________ 0.15

_______________________ .038

_______________________ .0009

_ __ __ __________________ .07

________ ______________ .0026

_______________________ .038

Yb,O,.Lu,O,,HfO,,Ta^)l ,WO,.RetO7 ,Os,Ir,Pt,Au,Tl.O,.PbO,Bi.O,,ThO,,UO,]

107

0.05

.018

.0005 

.06

.0015 

.048

108

0.11

.053 

.003 

.0005 

.22

.0016 

.10

109

0.13

.052 

.003 

.0005 

.15

.0020 

.13

112

0.61

.03

.00064 

.048 

.001 

.0014 

.031

113

0.58 

.25 

.012

.0008 

.036 

.0017 

.0022 

.014

115

1.23 

.25 

.27

.0023 

.15 

.0022 

.0020 

.013 

.0051 

.0002

116

1.10 

1.50 

.35

.0064 

.17 

.0044 

.0032 

.014 

.0057 

.0002
ANALYSES OF SAMPLES 71

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued

92, 93. Baker County. Probably Triassic. [T. 13 S., R. 44 E.], railroad cut near 

Windy Point. ( Hodge. 1938d, p. 154, 199. 201, 206. 210. 211, 213, 

215.) General: Limestone, bluish-gray, dense, massive; weathers nearly 

white; beds 2-20 ft thick; overburden thin. Index and geologic maps.

92. Analysts, G. C. Ware, Kenneth McCleod. USED sample 3. Analysis 

used in computations.

93. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

94. Baker County. Sec. 8. T. 7 S., R. 43 E., about 2.8 miles above Martin 

Bridge. Analyst, J. G. Fairchild. Record 83-D. ( Moore. 1937, p. 134; 

Wells. 1937, p. 58, 59; Hodge, 1938d, p. 154. 199, 250, 254.) Limestone. Bulk density 2.61. Tonnage estimated. Index and geologic maps.

95. Baker County. Sees. 22. 27. T. 9 S.. R. 39 E., Washington Gulch. 

( Wagner, 1958. p. 44. 45.) Limestone. Index map.

96. Clackamas County. [T. 6 S.. R. 1 W.], about 1 mile from town of

Marquam. Portland Cement Co. (Williams, 1914, p. 63, 64.) Limestone, composed almost entirely of fossil shells; 15-25 ft thick. Tonnage 

estimated. Use: Lime. Possible use: Portland cement.

97, 98. Coos County. Eocene. Pulaski Formation. NEi sec. 35, T. 25 S.,

R. 12 W., Coos Bay area. Morgan property. ( Oregon Department of 

Geology and Mineral Industries. 1940, p. 32, S3.) Limestone, dull-gray, 

amorphous. Overburden 5-20 ft. Tonnage estimated. Possible use: 

Agricultural.

97. USED sample 192C. (Hodge, 1938d, p. 279.) Outcrop sample. 

Former use: Mortar.

98. Grab sample.

99. Grant County. Permian. Sec. 19, T. 18 S., R. 25 E.. Grindstone Creek. 

Analyst, I. G. Fairchild: collectors, R. W. Richards, B. N. Moore. 

Record 63-D. ( Moore. 1937, p. 147. pi. 1; Wells, 1937, p. 58, 59.) 

Limestone. Bulk density 2.68. Index map. Possible use: Cement.

100. Jackson County. Probably Devonian. Sec. 20, T. 36 S., R. 3 W.. ridge 

1 mile southwest of town of Gold Hill. Analyst, R. C. Wells. Specimen 

7021. ( Diller and Kay. 1909. p. 50, 51, pi. 2.) Limestone. Index 

map. Possible use: None.

101. Jackson County. Paleozoic. Sec. 19, T. 40 S., R. 4 W., Carberry Creek. 

USED sample 80. ( Hodge, 1938d, p. 282, 299. 309, 310.) General: 

Limestone, black, some light-colored areas. Index map. Possible use: 

[ Probably none].

102. Polk County. Sees. 11. 12, T. 8 S., R. 6 W., about 4 miles southwest of 

town of Dallas. Portland Cement Co. Analyst and collector, 

R. K. Meade. ( Williams. 1914, p. 61. J52.) General: Limestone; beds 

about 10 ft thick. Chip sample from outcrop. Tonnage estimated. 

Possible use: Portland cement.

103. Sherman County. [T. 2 N., R. 16 E.], south of town of Rufus. Analyst, 

R. K. Meade. ( Eckel, 1913, p. _309.) Limestone, 1-2 ft thick; alternating with layers of volcanic ash. Possible use: Cement.

104. Tillamook County. NW»NW» sec. 10, T. 2S., R. 9 W., about 7.5 miles 

southeast of town of Tillamook. Owner, Charles Nelson. ( Hodge, 1938d, 

p. 154, 268, 269.) Limestone. Tonnage estimated. Index map. 

Former use: Lime.

105. Wallowa County. Late Triaisic. SW corner sec. 10, T. 3 S., R. 44 E.. 

near mouth of Falls Creek. USED sample 35. ( Hodge, 1938d, p. 154. 

165, 169, 171, 178, 180.) Limestone. Index and geologic maps. 

Possible use: Cement.

Washington

106-109. Asotin County. Probably Late Triassic. Sec. 19, T. 7 N.. R. 47 E.,

Lime Hill, about 25 miles south of town of Clarkston. Ideal Cement Co. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. ( Mills, 1962, p. 12, 13, 239-243..244, 252, 264, pi. 1.) 

General: Limestone, gray to light-gray, cryptocrystalline to fine-grained; 

beds 1/16 in.-4 ft thick; chip sample from outcrop. Most units siliceous

Washington Continued

and (or) slightly argillaceous. Tonnage estimated. Index and geologic 

maps. Possible use: Portland cement.

106. SEiNEi sec. 19. Sample A-ll. of 70 ft.

107. SEiNEi sec. 19. Sample A-12. of 27 ft.

108. NEiSEi sec. 19. Sample A-1, of 60 ft.

109. NEiSEi sec. 19. Sample A-2. of 48 ft.

110, 111. County, age, locality [except section], remarks, maps, and use as in 

samples 106-109.

110. Analyst, A. A. Hammer. ( Shedd. 1913, p. 114, 117. 118. 250. 

pi. 21; Mills, 1962, p. 239-241. 243.) Limestone, dark-gray, 

fine-grained.

111. ( Mills, 1962, p. 239-242. 243.)

112,113. Cbelan County. Pre-Ordovician, limestone in Swakane Gneiss. Sec. 23, 

T. 26 N., R. 18 E. Dry Creek deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, 

p. 16, 19. 82, 398-400, 403. 447. 455.) Limestone, thin-bedded; 

chip sample. Tonnage estimated. Index and geologic maps. Former 

use: Lime. Possible use: None, deposit small.

112. Sample Cn 5-1. Limestone, crystalline; composite.

113. Sample Cn 5-4. Limestone, black; single specimen.

114. Cbelan County. NWi sec. 3, NEi sec. 4, T. 25 N.. R. 20 E., on 

Entiat River. Superior Lime and Mining Co. USED sample 231B. 

( Hodge, 1938d. p. 13. 80, 81, 83, 85, 86; Danner, 1966, p. 82. 398, 

410-412, 414, 415.) General: Limestone, white to green, thin-bedded, 

brittle with flinty appearance. Tonnage estimated. Index and geologic 

maps. Geologic section, measured section. Possible use: Terrazzo 

chips, roofing granules, decorative stone.

115-119. Cbelan County. NEi sec. 4, T. 25 N., R. 20 E., on Entiat River.

( Danner, 1966, p. 18, 19, 82, 398, 410-412, 414. 415, 447. 455.) 

General: Limestone, white to greenish-gray, finely crystalline, thinbedded. Tonnage estimated. Index and geologic maps, geologic section, 

measured section. Possible use: Terazzo chips, roofing granules, 

decorative stone. 

115. 116. Analyst, under supervision of Mark Adams; spectrochemical

analyst, C. E. Harvey. Samples Cn 8-1, Cn 8-3.

115. Chip sample taken across 80 ft.

118. Chip sample, single specimen.

117. Log of drill hole 3. Limestone, white; includes 1 ft of 

gneiss; depth 22.5-39 ft.

118. Log of drill hole 3. Limestone, white; thin schist interbeds; 

depth 18.5-22.5 ft.

119. Log of drill hole 3. Limestone, banded; depth 0-9 ft.

120. Cbelan County. South-central part sec. 15, and SEi sec. 9, T. 16 N.. 

R. 19 E., 18 miles by road from town of Entiat. Gold Ridge deposit. 

( Danner, 1966, p. 82, 398, 406-406.) Limestone, white, fine- to 

medium-grained, crystalline; contains a few thin quartz and mica schist 

layers. Sample taken across 25 ft. Index and geologic maps, geologic 

sections. Possible use: Roofing granules, decorative stone.

121. Cbelan County. Ni sec. 10. SEi tec. 3, T. 27 N., R. 15 E. Soda Springs 

deposit. Ideal Cement Co. Drill hole 53. ( Danner, 1966, p. 82, 387- 

390. 392, 397.) Limestone, light-gray to white, medium to coarsely 

crystalline; interbeds of schist and quartzite; depth 68-78 ft. Index and 

geologic maps. Former nse: Cement. [For other analyses from same 

drill hole, see samples 292, 293, group B; sample 127, group D; samples 

59, 60. group E.]

122. Cbelan County. NWi sec. 14, T. 27 N., R. 15 E. Rainy Creek deposit. 

Drill hole 54. ( Danner, 1966, p. 82, 387, 393-3196. 397.) Limestone, 

white to gray, medium to coarsely crystalline; mineralogy; depth 152- 

163ft. Tonnage estimated. Index and geologic maps. Possible use: 

Portland cement. [For other analyses from same drill hole, see samples 

294, 295, groupB; samples 128, 129, group D; samples61-63, group E.]

123. County, locality, reference, remarks, maps, and use as in sample 122. Drill 

hole 55. Depth 198-199.7 ft. [For other analyses from same drill hole, see 

samples 124-126, this group; sample 26, groupC; samples 64-68, group E.]

Footnotes of analyses on preceding page:

'insoluble in boiling diluted HC1.

'iron and aluminum oxide, RjOj.

'Reported as oxide of iron.

* Calculated from reported MgCO, and (or) CaCOj.

1 Reported as calculated.

'ignition loss.

7 CO,, calculated from reported MgO and CaCOj.

*SO..

'insoluble. 

"R^s.

"Sample dried at 110°-112>C; ignition 

loss, 1,000"-1,100"C.
72 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska. Idaho, Oregon, and Washington.contalning 75 to 90 percent carbonate (Group F|). common- and mixed-rock categories-Continued

Chemical analyses Continued

SiO, _______ . A1,O, ______ ,

Fe,0s ________

MgQ_ _________

CaO __________

Na,0___ 

\fm£}

Pf>s _________

Class ____ ____

CaO/MgQ ______

SiO, _________

A1,0S 

Ff>_~).

Mga _________

CaO __________

Mn£>» ________

Total ____

Class _________

CaO/MgQ ______

SiO, _________

B.O S

MgQ* ________

CaO __________

Class ____ _

CaO/MgQ ______

SiO, ____ ____

R-O, 5

MgO» ________

CaO __________

Total ____

CaO/MgQ ______

124

46Fj4-49

__ 17.18

__ 3.34

__ 1.85

__ .94

__ 43.02

__ 33.11

__ 99.44

__ 9,14,72

__ Calcite

137

46Fj 

10-22

__ 21.62

__ 1.90

__ 42.83

__ *32.86

__ [100.03]

__ 20,2,74

Magnerian

calcite

150

46? i 

24-13

__ 8.46

__ 1.72

__ 14.12

__ 33.78

__ 41.92

__ 100.00

__ 6,5.89

Calcareous

dolomite

163

46F, 

24-205

__ 9.91

__ 2.45

__ 17.70

__ 28.18

__ 41.76

__ 100.00

__ 6,7.87

___ Dolomite

125

46Ft 4-46

11.90 

2.33 

.82 

1.29 

46.29

36.77

99.40

7.9,81 

Calcite

138

46F t 

14-4

13.04 

10.21

1.23 

40.82 

.116

'32.61

[98.03] 

0,23,69 

Calcite

151

46Fj 

24-14

11.80 

2.73 

12.58 

33.16 

39.73

100.00

7.8.84

Calcareous 

dolomite

164

46F, 

24-206

9.50 

3.59

17.35 

28.18 

41.38

100 .00 

3,10,85 

Dolomite

126

46Fi4-44

15.86 

2.54 

1.37 

.82 

44.56

34.66

99.81

10.11.76 

Calcite

139

46F, 

14-1

11.10 

/ 1.30 

1 '1.80

T 46.33

"36.37

[96.90] 

7.8,83 

Calcite

152

46Fj 

24-34

6.58 

1.70 

17.83 

29.34 

44.55

100 .00 

4,7.89 

Dolomite

165

46F, 

24-244

5.86 

3.30

17.98 

29.85 

43.01

100 .00 

0,10.89 

Dolomite

127

46Fj4-60

13.11 

2.60 

1.05 

.90 

46.26

35.69

99.61

7.10,79 

Calcite

140

46F, 

16-7

11.94 

3.49 

2.21 

1.47 

44.57

34.40

[98.08] 

3,16.74 

Calcite

153

46F, 

24-135

7.62 

2.14 

18.24 

29.14 

42.86

100.00 

4,6,89 

Dolomite

166

46Fj

24-207

6.78 

2.84

17.86 

29.69 

42.83

100.00 

2.8,89 

Dolomite

W ashi ngton C ontinued

128 129 130

46Fj4-56 46Fj4-77 46Fi4-78

15.61 8.31 7.49 

2.43 2.66 1.68 

.16 1.46 1.96 

.38 .66 1.30 

45.50 49.50 49.80 

_____ .32 .33

_____ .06 .05

35.56 37.03 37.39

99.64 [100.00] [100.00]

11,8,79 2,12,81 2,10,82 

Calcite Calcite Calcite

W ashi ngton C ontinued

141 142 143

46F! 46Fj 46Fj 

16-3 23-2 40-173

7.52 4 11.64 14.30 

3.99 1.24 | j 

2.01 T 14.59 J 

_____ _____ .59

49.20 T 39.41 47.31 

_____ 7 .37 .005

_____ *1.58 ______

36.28 "30.93 *37.21

[99.00] [99.76] [99.76] 

0,14.80 (0,22)70 14.1,84 

Calcite Calcite Calcite

Washington Continued

154 155 156

46F, 46Fj 46F, 

24-137 24-140 24-141

9.56 9.46 14.56 

3.20 2.76 3.66 

18.12 18.22 17.31 

27.62 27.80 25.50 

41.50 41.76 38.97

100.00 100.00 100.00 

4,9.86 5.8,86 8,11,80 

Dolomite Dolomite Dolomite

Washington Continued

167 168 169

46F, 46F! 46FJ 

24-208 24-210 24-211

9.70 6.89 11.66 

2.78 2.60 3.45

17.58 18.20 16.88 

28.42 29.36 27.78 

41.52 42.95 40.23

100.00 100.00 100.00 

5,8,86 3,8.89 6.10,83 

Dolomite Dolomite Dolomite

131

46Fj4-79

15.37 

4.42 

1.06 

1.17 

41.50 

2.72 

.19

33.47

[99.90]

6,16,73 

Calcite

144

46Fj

40-174

11.98 

'.43

.30 

49.09 

.014

*38.46

[100.27] 

11.1,87 

Calcite

157

46F, 

24-142

8.45 

2.24 

18.30 

28.56 

42.45

100.00 

5.7,88 

Dolomite

170

46Fj 

24-213

7.37 

3.66

17.91 

28.80 

42.26

100.00 

1.11,87 

Dolomite

132

46FilO-17

13.52 

| '1.05

1.12 

46.06

.056 

*38.11

[99.92]

12.4,85 

Calcite

145

46Fj 

40-175

9.96 

1 .88

.29 

49.66 

.005

*38.82

[99.62] 

8,3.88 

Calcite

158

46F t 

24-143

17.74 

3.70 

16.08 

25.16 

37.32

100.00

12,11,77 

Dolomite

171

46F! 

24-217

8.05 

2.36

18.33 

28.68 

42.58

100.00 

4.7,88 

Dolomite

133

46FilO-18

12.51 

*.99

.92 

47.04

.051 

*38.34

134

46F!lO-19

18.09 

'.85

1.41 

43.40

.040 

*36.23

[99.85] [100.02]

11,3,86 17,3,80 

Calcite Calcite

146

46F, 

40-176

9.74 

'.80

.32 

49.43 

.006

*38.93

[99.23] 

8,2,88 

Calcite

159

46F, 

24-144

10.20 

2.06 

17.92 

28.08 

41.74

100.00 

7,6,87 

Dolomite

172

46Fj 

24-221

11.00 

3.50

16.87 

28.12 

40.51

100.00 

5,10,84 

Dolomite

147

46Fj 

24-19

10.00 

S 2.79

'6.32 

41.48

"39.41

100.00

5,8,86

Magnesian 

calcite

160

46F t 

24-145

9.14 

2.30 

18.00 

28.54 

42.02

100.00 

5,7,87 

Dolomite

173

46F, 

24-224

9.94 

2.96

17.22 

28.60 

41.28

100.00 

5,9,86 

Dolomite

135

46FjlO-20

9.51 

'1.17

.24 

50.49

.015 

*38.60

'[100.02]

8,3,87 

Calcite

148

46F, 

24-8

8.00 

S 2.47

'19.12 

27.76

"42.65

100.00 

4,7,88 

Dolomite

161

46F, 

24-200

8.42 

1.68 

17.88 

29.41 

42.61

100.00 

6.5,89 

Dolomite

174

46F,

24-227

7.48 

2.94

17.33 

29.85 

42.40

100.00 

3.9,88

Calcareous 

dolomite

136

46F!lO-21

10.15 

'.96

.28 

50.07

.017 

*38.56

[100.04]

9,3,87 

Calcite

149

46Fi 

24-12

19.14 

5 3. 40

'13.20 

27.94

"36.32

100.00

13,10,76

Calcareous 

dolomite

162

46Fj 

24-203

8.60 

3.72 

17.72 

28.32 

41.64

100.00 

2.11.86 

Dolomite

175

46F, 

24-233

7.80 

2.72

17.98 

29.03 

42.47

100.00 

3,8.88 

Dolomite

'Sample dried at 1108-112«C; ignition loss at 1.000°- 1.100»C. 

'With samples 55-58, group F,. NajO = 160 ppm, KjO = 750 ppm, 

TiO, = < 30 ppm, and S = 26 ppm. 

4 Insoluble. 

5 Iron and alumina.

'includes FeO.

'Calculated from reported Fe, CaCOs , and (or) P.

'By difference.

' Reported as manganese (MnjO,) .

"COS , calculated from reported CaCOs .

"9508-l,000°Ci also called CO,.
ANALYSES OF SAMPLES 73

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: UjO.BeO.BiOj.KjO.SciOs.ZnO.GajO 

TeO..Cs.O.La.O..CeO.,PrtO..Nd.O..Sm.O..Eu^3 .Gd.O.,Tb^

Na,0 _____________

TiO, .

V,05 .

Cr.0, .

MnO _____________

NiO _____________ .

CoO _____________ .

CuO ________________

SrO _________________

ZrO. _

Ag.0 _

PbO _______________ _

132

. ____________ 0.06

. __________ _ .054

. ___________ .007

. ____________ .00077

. ____________ .035

. ____________ .001

. ____________ .0024

. ____ ______ .045

. ____________ .002

133

0.06

.036

.004

.00058

.036

.0059

.049

134

0.025

.007

.0005

.026

.003

.039

.0033

135

0.0064

.0015

.094

.0068

.015

136

0.0092

.0056

.0014

.26

.0049

.015

137

0.26

.043

.003

.0025

.076

.001

.0022

.034

138

0.73

.054

.039

.0017

3.7

.033

.035

.020

.0096

.0013

143

0.0044

.0016

.042

.0026

.024

144

0.0076

.0017

.078

.0021

.012

.0035

145

0.0034

.0019

.049

.0019

.011

.021

146

0.0048

.0011

.035

.0061

.018

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

124- 126. Chelan County. NWi sec. 14, T. 27 N.. R. IS E. Rainy Creek deposit. 

Drill hole 55. ( Danner, 1966, p. 82, 387, 393-396, 397.) Limestone, 

white to gray, medium to coarsely crystalline; mineralogy. Tonnage 

estimated. Index and geologic maps. Possible use: Portland cement. 

[For other analyses from same drill hole, see sample 123, this group; 

sample 26, group C; samples 64-68, group £.]

124. Depth 142.5-174 ft. 126. Depth 0-44.5 ft.

125. Depth 51-60.5 ft.

127, 128. County, locality, reference, remarks, maps, and use as in sample* 124-126. 

[For other analyse* from drill hole 56, see sample 296, group B; samples 

69, 70, group E; samples 37, 38, group F: .] 

127. Depth 151.3-166 ft. 128. Depth 79-116 ft.

129-131. Chelan County. Sec. 15, T. 28 N.. R. 21 E., about 11 miles by road from 

town of Chelan. Manson or Wapato Lake deposit. ( Danner, 1966, p. 82, 

409, 410, 416.) Limestone, white to gray, finely to medium crystalline, 

laminated to massive; interbedded with mica schist and gneiss. Deposit 

small. Composite sample. Index and geologic maps, geologic section. 

Former use: Lime. Possible use: Terrazzo chips, roofing granules, 

decorative stone.

132- 137. Ferry County. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 244, 252, 253, 264, 

pi. 1.) Limestone, some impurities. Mineralogy. Chip sample from 

outcrop. Index and geologic map*. Use: None, rock impure. 

132- 134. Pre-Permian, late Paleozoic. NE»SWi sec. 9, T. 35 N., 

R. 32 E., Sheep Mountain area. ( Mills, 1962, p. 207, 

209, 210.) Samples F-27, F-28, F-30. Limestone, darkgray to black, fine- to medium-grained, thin-bedded. 

135, 136. Permian. SE^ sec. 9, T. 36 N., R. 32 E., about 4 miles

southwest of town of Republic. Union Lime Co., abandoned 

quarry. (Mills, 1962, p. 199-^01, 202, 203.) Limestone, 

gray, very fine grained; deposit 50-70 ft thick; overburden. 

Tonnage estimated.

135. Sample F-34 represents 38 ft.

136. Sample F-37 represent* 50 ft.

137. Triatsic. SEiNEi sec. 18, T. 40 N., R. 34 E., about 2.5 

miles southwest of town of Danville. U.S. Public Domain. 

Sample F-5. (Mill*, 1962, p. 186-188.) Limettone, white 

to light-gray, medium-grained.

138. Grays Harbor County. Early(?) and middle Eocene, Metchosin Volcanic*. 

Sec. 12, T. 23 N., R. 7 W. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample GH 1. ( Danner, 1966, 

p. 16, 19, 82, 420, 423, 447, 456.) Limestone, chip sample. Index and 

geologic maps.

139. Grays Harbor County. Early(?) and middle Eocene, Crescent Formation. 

NWi sec. 4, T. 20 N., R. 9 W., Humptulips River. East Fork deposit. 

(Hodge, 1938d, p. ^8; Danner, 1966, p. 82, 422, 423.) Limestone. 

Index and geologic map*. Use: Probably none, rock impure.

140, 141. Jefferson County. Cretaceous and Tertiary, Soleduck Formation. (Danner, 

1966, p. 82, 428, 429.) Index and geologic map.

140. [T. 26 N., R. 4 W., unsurveyed],Dosewallipt, Miners Creek. 

 Limestone, white.

141. [T. 27N., R. 4W., unsurveyed],Mount Deception. Limestone, green.

Washington Continued

142. Mason County. [T. 24 N., R. 6 E.] , about 11 miles northwest of town of 

Hoodsport. Hoodsport mine. Analyst, Elton Fulmer. ( Shedd, 1902, 

p. j), 18.) [Limestone, impure.] Possible use: None.

143-146. Okanogan County. Carboniferous. Sec. 27, T. 40 N., R. 30 E., 2.6 miles 

northeast of town of Chesaw, Buckhorn Mountain area. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Samples O-13, O-20, O-47, O-48. ( Mill*. 1962, p. 12, 13, 211-213, 

214, 245, 254. 264, pi. 1.) General: Limestone, light-gray to dark-gray, 

fine-grained, very thin bedded; contains chert. Chip sample. Tonnage 

estimated. Index and geologic map*. Possible use: Portland cement.

143. With other samples, represents 150 ft.

144. With other samples, represents 320 ft.

147-151. Okanogan County. Triassic. Sec. 8. T. 34 N., R. 26 E., about 4.5 miles 

southwest of town of Riverside. Owner, Beechenow, deposit 10. ( Bennett, 

1944, p. 6-9, 11, 22-24, pi. 1; Bennett, 1945, p. J2.- J.3.) Deposit: 

Dolomitic marble, white; chert veins and limy dolomite in upper part; 

stratigraphic thickness about 250 ft. Fresh sample from outcrop, fragments 

taken every 5 ft, usually for a length of 50 ft. Tonnage estimated. Index 

and geologic map*. Possible use: General uses of dolomite; refractories, 

crushed stone.

147. SWiNEi sec. 8. Sample 460a. 

148-151. NWiSEi sec. 8.

148. Sample 449a. 150. Sample 464a.

149. Sample 453a. 151. Sample 455a.

152. County, age, reference, maps, and use as in samples 147-151. NEiNWi

sec. 10, T. 35 N., R. 26 E., about 4 miles northwest of Riverside. Owner, 

S.J. Booher, deposit 9. Sample 427. Deposit: Dolomite, dark-gray, 

dense; stratigraphic thickness about 400 ft. Fresh sample from outcrop, 

fragments taken every 5ft, usually for a length of 50ft. Tonnage estimated.

153-175. Okanogan County. Triassic. Sec. 15, T. 35 N., R. 26 E. Deposit 7. 

(Bennett, 1944, p. 7, 9, 11, 17-19, pis. 5, 6; Bennett, 1945, p. 8.) 

Deposit: Dolomite, light- to dark-gray, dense, both massive and bedded. 

Beds where distinct usually more than a foot to several feet thick; stratigraphic thickness 164 ft to more than 1.000 ft. Fresh sample from outcrop, 

fragment* taken every 5 ft, usually for a length of 50 ft. Tonnage estimated. Index and geologic map*. Possible use: General uses of dolomite; 

refractories, crushed stone.

153-160. NWiNEi sec. 15. Owner, Tim Bernard.

153. Sample 255. 157. Sample 262.

154. Sample 257. 158. Sample 263.

155. Sample 260. 159. Sample 264.

156. Sample 261. 160. Sample 265. 

161-164. SWiNEi sec. 15. Owner, Tim Bernard.

161. Sample 239. 163. Sample 244.

162. Sample 242. 164. Sample 245. 

165-170. SEiNEi sec. 15. Owner. R. E. Smith.

165. Sample 234. 168. Sample 249.

166. Sample 246. 169. Sample 250.

167. Sample 247. 170. Sample 253. 

171-175. NEiSEi sec. 15. Owner, R. E. Smith.

171. Sample 206. 174. Sample 216.

172. Sample 210. 175. Sample 223.

173. Sample 213.
74 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho, Oregon, and Washington,containing 75 to 90 percent carbonate (Group fj), common- and mixed-rock categories Continued

Chemical analyses Continued

SiO, ____ . __

RtO, 1 _ 

MgO 1 ________

CaO __ , _______

Ignition loss* ____

Total ___

Class _________

CaO/MgO ______

SiO, ______ __

R^t 1 

MgO 1 ________

CaO _

Ignition loss* ____

Total ____

Class _________

CaO/MgO ______

SiO, _________

I^O, 1 _________

MgO 1 _ __

CaO __________

Ignition loss* ____

Total ____

Class _________

CaO/MgO ______

SiO, _ ________

I^O, 1 ______ _

MgO 1 ________

CaO _

Ignition loss* ____

Total ____

Class _________

CaO/MgO ______

SiO, _________

R.O, 1 _________

MgO 1 ________

CaO _________

176

46F, 

24-238

__ 10.30

__ 3.61

__ 17.50

. __ 27.74

__ 40.85

__ 100.00

__ 4,11,84

, __ Dolomite

189

46Fj 

24-259

__ 11.29

__ 3.12

__ 17.48

__ 27.62

__ 40.49

__ 100.00

__ 6.9.84

, _ _ Dolomite

202

46Ft 

24-289

, __ 8.53

. __ 1.62

. __ 18.39

, __ 28.76

__ 42.70

, __ 100.00

, __ 6,5.89

, _ _ Dolomite

215

46Fi40-13

, __ 13.53

, __ 2.16

. __ 17.29

, __ 26.98

, __ 40.04

, __ 100.00

. __ 10,6,83

228

46Fi40-64

__ 12.64

. __ 3.42

__ 17.19

, __ 26.86

177

46F t 

24-239

6.72

2.78

16.61

28.92

42.97

100.00

2.8,89

Dolomite

190

46Fj 

40-7

7.38

2.58

18.59

28.68

42.77

100.00

3,8.89

Dolomite

203

46Ft 

24-291

21.48

2.05

16.21

23.82

36.44

100.00

18.6,75

Dolomite

216

46Fi40-15

8.74

2.85

17.91

28.56

41.94

100.00

4.8.87

229

46Fi40-65

8.20

2.24

17.99

29.06

178

46F t 

24-241

6.44

2.94

18.17

29.46

42.99

100.00

2,9.89

Dolomite

191

46Ft 

24-264

7.81

2.25

18.09

29.20

42.65

100.00

4.7.89

Dolomite

204

46Ft 

24-292

15.90

1.76

16.69

26.54

39.11

100.00

13.5.81

Dolomite

217

46Fi40-16

7.14

2.60

18.71

28.66

42.89

100.00

3,8.89

Dolomite

230

46Fi40-66

15.44

4.50

16.81

25.02

179

46Ft 

24-243

8.58

3.26

17.44

28.98

41.74

100.00

3,10.86

Dolomite

192

46F! 

24-266

11.70

3.96

16.90

27.42

40.02

100.00

5,12.82

Dolomite

205

46FJ 

24-299

12.31

2.43

17.54

27.22

40.50

100.00

8.7.84

Dolomite

218

46Fi40-18

16.94

3.20

16.48

25.42

37.96

100.00

12,9,78

231

46Fr40-67

15.48

3.34

16.32

26.36

W ashington Continued

180 181 182

46FJ 46FJ 46Ft 

24-248 24-249 24-250

5.90 7.14 7.36

4.16 2.27 2.58

17.97 19.00 17.82

29.16 28.46 29.54

42.81 43.13 42.70

100.00 100.00 100.00

0,10.88 3,7.89 3.8.89

Dolomite Dolomite Dolomite

Washington Continued

193 194 195

46Ft 46Ft 46Ft 

24-267 24-268 24-271

11.64 19.74 19.46

2.83 3.84 3.48

17.51 15.68 15.71

27.38 24.44 24.76

40.64 36.30 36.59

100.00 100.00 100.00

7.8.84 13,11.74 14,10.75

Dolomite Dolomite Dolomite

Washington Continued

206 207 208

46Ft 46F t 46Ft 

40-1 40-2 40-3

11.68 16.35 11.56

1.82 2.14 1.63

17.08 16.13 17.09

28.44 26.72 28.60

40.98 38.66 41.12

100.00 100.00 100.00

9.5.86 13.6.80 9.5.86

W ashington Continued

219 220 221

46Fi40-40 46Fj40-47 46F/W-27

10.90 7.66 8.00

1.40 2.26 1.98

15.62 17.23 17.06

30.80 30.30 30.40

41.28 42.55 42.56

100.00 100.00 100.00

9.4.87 4.7.89 5.6.89

Calcareous Calcareous Calcareous

dolomite dolomite dolomite

Washington Continued

232 233 234

46Fi40-77 46Fi*0-82 46Fj40-83

6.38 10.84 20.30

2.58 3.14 3.18

17.52 16.59 14.28

29.83 28.75 26.14

183

46Ft 

24-253

7.33

3.98

17.96

28.62

42.11

100.00

1.12.87

Dolomite

196

46Ft 

24-272

10.09

3.10

17.81

27.76

41.24

100.00

5.9.85

Dolomite

209

46F, 

40-4

13.35

2.12

15.91

28.70

39.92

100.00

10.6.83

Calcareous

dolomite

222

46F i40-30

7.39

2.12

18.88

28.56

43.05

100.00

4.6,89

Dolomite

235

46F ,40-85

8.95

2.54

17.93

28.52

184

46F t 

24-254

6.45

3.62

18.67

28.52

42.74

100.00

0.11.88

Dolomite

197

46F t 

24-273

7.22

3.08

17.47

29.76

42.27

99.80

2,9,88

Calcareous

dolomite

210

46F t 

40-8

11.52

2.42

17.46

27.76

40.84

100.00

7.7.85

Dolomite

223

46F ,40-54

14.74

3.64

16.28

26.64

38.70

100.00

9,11.80

Dolomite

236

46F i40-87

9.00

2.90

17.67

28.65

185

46Ft 

24-255

7.38

3.35

18.40

28.46

42.41

100.00

2.10,87

Dolomite

198

46Fj 

24-276

10.14

3.74

17.30

27.92

40.86

99.96

4.11.84

Dolomite

211

46Ft 

40-9

12.28

3.09

17.10

27.37

40.16

100.00

7.9.83

Dolomite

224

46F ,40-55

9.38

3.04

17.48

28.56

41.54

100.00

4.9.86

Dolomite

237

46F ,40-89

18.70

3.92

12.34

28.91

186

46F t 

24-257

10.70

3.48

16.87

28.32

40.63

100.00

5.10.84

Dolomite

199

46Ft

24-278

10.43

3.54

17.53

27.62

40.88

100.00

5.10.84

Dolomite

212

46Ft 

40-10

17.58

2.55

16.37

25.56

37.94

100.00

13.7,79

Dolomite

225

46F 1*0-56

10.84

3.34

17.66

27.38

40.78

100.00

5.10.84

Dolomite

238

46F i*0-51

9.48

3.76

16.13

29.66

187

46F t 

24-258

6.60

3.25

18.34

29.02

42.79

100.00

1,9,88

Dolomite

200

46Ft 

24-280

9.00

4.44

17.79

27.62

41.15

100.00

2.13.84

Dolomite

213

46Ft 

40-11

6.74

2.76

18.06

29.55

42.89

100.00

2.8,89

Dolomite

226

40Fi*0-58

10.24

2.50

18.02

27.78

41.36

99.90

6,7,86

Dolomite

239

46Fi*0-52

15.80

4.10

15.67

26.50

188

46Ft 

24-282

8.00

3.16

18.48

28.16

42.20

100 .00

3,9.87

Dolomite

201

46Ft 

24-287

8.90

1.44

18.51

28.46

42.69

100.00

6.4,89

Dolomite

214

46Ft 

40-12

19.66

2.33

16.35

24.54

37.12

100.00

16.7.77

Dolomite

227

46Fi*0-63

13.76

4.96

15.23

27.68

39.37

101.00

5.14.81

Calcareous

dolomite ,

240

46F i*0-53

7.74

2.98

17.52

29.50
ANALYSES OF SAMPLES 75

Table 6. Analyses of samples from Alaska. Idaho. Oregon, and Washington containing 75 to 90 percent carbonate (Group Fj) common- and mixed-rock categories-Continued

Chemical analyses-Continued

Washington-Continued

Ignition loss* _____

Total _______

Class ____________

CaO/MgO _________

'iron and alumina .

228

46F,40-64

39.89

100.00 

7.10,82

, Dolomite

229

46F,40-65

42.51

100.00 

4.7.88

Dolomite

230

46Fj40-66

38.23

100.00 

8,13,78

Dolomite

231

46F ,40-67

38.50

100.00 

10.10.79

Dolomite

232

46F ,40-77

43.69

100.00 

2.8,90

Calcareous 

dolomite

i

233 234

46FJ40-82 46Fi40-83

40.68 36.10

100.00 100.00 

6,9,84 15.9.75

Calcareous Calcareous 

dolomite dolomite

By difference.

235

46F ,40-85

42.06

100.00 

5.7.87

Dolomite

236

46F ,40-87

41.78

100.00 

4.8,87

Dolomite

237 238

46F,40-89 46F,40-51

36.13 40.97

100.00 100.00 

12.11,75 3,11,85

Calcareous Calcareous 

dolomite dolomite

239

46F 1*0-52

37.93

100.00 

9.12,78

Dolomite

240

46F 1*0-53

42.26

100.00 

3,9,88

Dolomite

*«50»-1.000-Cj also called CO,.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Washington Continued Washington Continued

176- 182. Okanogan County. Trlassic. Sec. 15, T. 35 N., R. 26 E. Deposit 7. 

(Bennett, 1944. p. 6-9, 11, 17-19. pis. 5. 6; Bennett, 1945. p. 8.) 

Deposit: Dolomite, light- to dark-gray, dense, both massive and bedded. 

Beds where distinct usually more than a foot to several feet thick; 

stratigraphic thickness 165 ft to more than 1,000 ft. Fresh samples 

from outcrop, fragments taken every 5 ft, usually for a length of 50 ft. 

Tonnage estimated. Index and geologic maps. Possible use: General 

uses of dolomite; refractories, crushed stone.

176- 180. NEiSEi sec. 15. Owner, R. E. Smith.

206. Sample 157.

207. Sample 158.

208. Sample 159.

209. Sample 160.

210-218. County, age, maps, and use as in samples 183-209. SEiNEi sec. 22, 

T. 35 N., R. 26 E., 2 miles northwest of Riverside. Deposit 5. 

( Bennett, 1944, p. 6-9, 11, 16, pi. 4; Bennett, 1945. p. 6.) Deposit: 

Dolomite, gray, thick-bedded to massive; contains many cherty quartz 

veinlets. Fresh sample from outcrop, fragments taken every 5 ft, 

usually for a length of 50 ft. Tonnage estimated.

176. Sample 228.

177. Sample 229.

178. Sample 231.

179. Sample 233.

180. Sample 238.

181, 182. NWiSEi sec. 15. Owner, Tim Bernard.

210. Sample 127.

211. Sample 128.

212. Sample 129.

213. Sample 130.

214. Sample 131.

215. Sample 132.

216. Sample 134.

217. Sample 135.

218. Sample 136.

181. Sample 201. 182. Sample 202.

183-209. Okanogan County. Triassic. T. 35 N., R. 26 E.. about 2.5 miles

northwest of town of Riverside. Deposit 6. ( Bennett. 1944. p. 6-9, 

11, 17, pi. 4; Bennett, 1945, p. J.) Deposit: Dolomite, gray, 

massive; some siliceous beds. Fresh sample from outcrop, fragments 

taken every 5 ft, usually for a length of 50 ft. Tonnage estimated. 

Index and geologic maps. Possible use: General uses of dolomite; 

refractories, crushed stone.

183-187. SWiSEi sec. 15. Owner. Mrs. W. V. West.

188, 189.

190-200.

183. Sample 185. 

184. Sample 186. 

185. Sample 187.

SEiSEi sec. 15. Owner,

188. Sample 182.

NEiNEi sec. 22. Owner,

190. Sample 163. 

191. Sample 164. 

192. Sample 166. 

193. Sample 167. 

194. Sample 168. 

195. Sample 171.

186. Sample 189, 

187. Sample 195,

R. E. Smith.

189. Sample 196,

R. E. Smith.

196. Sample 172, 

197. Sample 173, 

198. Sample 176, 

199. Sample 178, 

200. Sample 180,

219-222. County, age, maps, and use as in samples 183-209. Sec. 23, T. 35 N., 

R. 26 E., about 1.5 miles northwest of Riverside. Owners. 

Emmett,Om«r, and R. E. Smith. (Bennett, 1944, p. 6-9, 11, 20, 21. 

pi. 3; Bennett. 1945, p. 11.) Deposit: Dolomite, light-gray, finegrained; stratigraphic thickness 200-300 ft. Fresh sample from outcrop, 

fragments Uken every 5 ft, usually for a length of 50 ft. Tonnage 

estimated.

219. 220. NEiSWi sec. 23. Samples 362, 369. 

221. 222. SEiNWi sec. 23. Samples 370. 373.

223-240. County, age. maps, and use as in samples 183-209. T. 35 N., R. 26 E., 

about 1.25 miles northwest of Riverside. Deposit 4. ( Bennett, 1944, 

p. 6-9, 11, 14-16, pi. 2; Bennett, 1945, p. 5, 6.) Deposit: Dolomite, 

light-gray to gray to brownish-gray; some impurities: stratigraphic 

thickness 450-500 ft. Fresh sample from outcrop, fragments taken 

every 5 ft, usually for a length of 50 ft. Tonnage estimated.

1-231. NWlSWi sec. 23.

223. Sample 105.

224. Sample 106.

225. Sample 107.

226. Sample 109.

227. Sample 118.

228. Sample 119.

229. Sample 120.

230. Sample 121.

231. Sample 122.

232-240. SWiSWi sec. 23. Owners, Emmett and Omar Smith.

201-209. NWjNEj sec. 22. Owner, Mrs. W. V. West.

201. Sample 143. 204. Sample 148.

202. Sample 145. 205. Sample 156.

203. Sample 147.

232. Sample 91.

233. Sample 96.

234. Sample 97.

235. Sample 99.

236. Sample 101

237. Sample 103.

238. Sample 112,

239. Sample 113.

240. Sample 114.
76 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho, Oregon, and Washington, containing 75 to 90 percent carbonate (Group FJ, common- and mixed-rock categories-Continued

Chemical analyses Continued

SiO, _ 

R,0, 

MgO 

CaO ___________

D f^

Total _____ _

Class ________ __

CaO/MgO _________

SiO2 ____________

A120, 

MgO_ ____________

CaO _____________

NajO ____________

P,O

SOS ____________

Total _______

Class ____________

SiOj ____________

AljO, ____________

Fe,0, ____________

FeO _____________

MgO ____________

CaO _____________

MnO ____________

Class ____________

CaO _____________

241

46F, 

40-101

15.54 

'5.06 

J16.46 

25.35

*37.59

100.00 

7,15,76 

Dolomite

254

46F,40-164

9.10 

} T 4.10

3.16 

48.16

36.12

100 .64

2.12,79

Magnesian 

calcite

267

46F ,26-87

*10.06 

[ T 1.40

*1.60 

*47.89

"39.34

[100.29] 

(8,4)89 

Calcite

242

46F, 

24-23

12.86 

1.32 

10.60 

31.25

43.20

99.23

11.11,78

Calcareous 

dolomite

255

46F,25-14

10.56 

T 4.74

.91 

45.57

.062

4 37 .24

[99.08] 

3,14.82 

Calcite

268

46F, 26-88

*11.23 

T 1.64

'.93 

*47.87

"38.59

[100.26] 

(8,4)87 

Calcite

243

46F, 

40-177

17.35 

.65 

2.11 

43.38 

.105 

4 36.46

[100.06 ]

16,2,82

Magnesian 

calcite

256

46F,25-13

9.50 

T 4.54

1.21 

46.41

.168

4 37.69

[99.52] 

2,13,83 

Calcite

269

46F ,26-82

7.60 

T 4.22

2.15 

46.84 

.019

4 38. 64

[99.47]

1,12,85

Magnesian 

calcite

244

46F, 

40-178

8.75 

1.25 

.84 

49.54 

.154 

4 39.78

*[100.31] 

7,4,89 

Calcite

257

46F,25-4

9.69 

/ 5.07 

I '1.75 

.94 

45.91

36.52

99.88 

0.17,79 

Calcite

270

Washington Continued

245 246 247

46F, 46F, 46F, 

40-179 40-180 40-181

16.78 19.83 14.17 

2.48 2.72 1.82 

1.78 2.00 1.35 

43.29 41.18 45.08 

.344 .098 .056 

4 35.56 4 33.62 4 36.90

[100.23] [99.45] [99.38]

13,7,79 15,8,74 11,5,82

Magnesian Magnesian 

calcite calcite

Washington Continued

258 259 260

46Fi2"5-19 46F ,25-21 /46F ,25-22

10.33 7.03 8.83 

3.36 2.34 2.85 

2.12 1.21 2.09 

.97 .76 1.01 

45.66 47.87 46.91 

.25 .12 .50 

.60 .67 .35

.36 .79 .50 

36.65 38.76 37.17

[100.30] [99.55] [100.21] 

2,15,80 2,10.86 1.14,81 

Calcite Calcite Calcite

Washington-Continued

271 272 273

248

46F, 

40-182

19.12 

2.22 

.89 

42.60 

.056 

4 34.69

[99.58] 

15,6,77 

Calcite

261

46F, 25-23

9.76 

4.69 

2.52 

.93 

44.60 

.15 

.50

.20 

37.08

[Id0.43] 

0,18,80 

Calcite

274

46F,26-91 46F,26-216 46F,26-215 46F,26-217 46F ,26-214

6.39 

T 3.50

1.95 

47.81 

.016

4 39. 95

[99.62]

1.10,88

Magnesian 

calcite

See following page for footnotes.

[ The metallic elements not detected in the spectrochemical analysis: U 

ThOj , UO« sample 255 . KjO =3.0 percent: sample 256 , KjO = 1.20 perc

243

NajO ____ ____ _

TiO2 ___ 0.014 

V2O$ ___ .011 

CrjO, ___ .0014 

MnO ____ .043

NiQ _____ ______

CuO ____ .004

SrO _____ .036

ZrO, _ __ ___ __

Ag,0_ __ .0002

244

0.17 

.07

.00083 

.17

.0025 

.0087 

.0045 

.0002

245

0.32 

.12 

.064 

.0042 

.033

.0068 

.004 

.15 

.0039 

.0005

246

0.28 

.088 

.028 

.0036 

.048

.0042 

.0083 

.095 

.0066

247

0.28 

.075 

.020 

.0024 

.044

.003 

.0066 

.11 

.0066

"12.44 "12.02 "16.69

'.12 '.55 '.12 

'.17 *13.59 '.37 

*48.58 '31.18 *45.81

"Trace '.01 '.01 

"38.38 "39.84 "36.44

99.69 97.19 99.44

(12,0)87 (12,0)85 (17,0)83

_ , . Calcareous _ , . Calcite . , . Calcite dolomite

Spectrochemical analyses

"10.46

'.44 

*18.36 

'28.40

'.03 

"42.63

100.32 

(10,0)89

249

46F, 

40-183

22.30 

1.38 

.81 

42.11 

.061 

4 33.66

[100.32] 

20.4,75 

Calcite

262

46F ,26-81

19.29 

} T .52

18.16 

25.96

.060

4 36.29

[100.28] 

18.2,76 

Dolomite

275

46F,26-72

11.08 

C 5.45 

\ 1.67

3.73 

40.76

37.30

[99.99]

0.19.75

Magnesian 

calcite

As-O..Y,O..

250

46F, 

40-184

14.92 

1.96 

1.80 

44.60 

.246 

4 36.23

[99.76]

12.6.81

Magnesian 

calcite

263

46F,26-83

*8.50 

T1.56

'l.27 

'48.59

"39.54

[99.46] 

(6,5)89 

Calcite

276

46F, 26-24

11.40 

| 1.06

None

48.75

[61.21] 

10,3,87

Nb*O..MoO.

251

46F, 

40-185

18.55 

4.33 

1.05 

42.23 

.090 

4 33.63

[99.88] 

11,13,74 

Calcite

264

46F ,26-84

*9.62 

T 1.30

*1.46 

*47.91

"39.21

[99.50] 

(7,4)89 

Calcite

277

46F,26-11

15,60 

2.30

Trace 

45.60

[63.50] 

12.7,81

^lOs.DyiOj.HotOj.ErjOj.TmjOj.YbtOt.Lu^j.HfOj.Ta^.WOj.ReiOj.Os.Ir.Pt.Au. 

:ent; sample 262, PbO =0.002 percent]

248 249 250

0 . 16 0 . 18 0 . 13 

.086 .057 .064 

.028 .023 .018 

.0013 .0037 .0045 

.044 .068 .02

.0042 .0044 .0046 

.0081 .012 .0025 

.07 .10 .083 

.0096 .0054 .0045 

_____ _____ .0002

251

0.12 

.0076 

.005 

.22

.0044 

.0019 

.015 

.014

255

0.47 

.13 

.011 

.0023 

.055

.001 

.0041 

.056 

.0087

256

0.56 

.092 

.0056 

.0015 

.21

.001 

.0025 

.024 

.0048 

.0002

262

0.002

.047

.001 

.0040 

.0058

252

46F, 

24-22

12.00 

1.80 

4.20 

45.91

36.44

100.35

9,5.80

Magnesian 

calcite

265

46F ,26-85

*11.55 

T1.98

'2.03 

'46.17

"38.46

[100.19]

(8.5)87

Magnesian 

calcite

278

46F,26-12

10.60 

2.10

Trace 

47.62

[60.32] 

7.6,85

TljOj.PbO.

269

0.11 

.084 

.003 

.00061 

.10

.001 

.0015 

.018

*253

46F, 

24-25

10.44 

2.66 

47.53 

1.78

37.02

99.43 

6,8,70 

Magnesite

266

46F, 26-86

*9.38 

T .90

'l.08 

'49.25

"39.84

[100.45] 

(8,2)89 

Calcite

279

46F ,26-22

11.30 

1.70

Trace 

45.97

[58.97] 

8,5,82

Bi,0s ,

270

0.097 

.076 

.003 

.00058 

.07

.001 

.0019 

.021
ANALYSES OF SAMPLES 77

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued Washington Continued

241. Okanogan County. Triassic. NEiNWj sec. 26, T. 35 N., R. 26 E., about 

1.25 miles northwest of town of Riverside. Owner, N. W. L. Brown, 

deposit 4. Sample 72. ( Bennett, 1944, p. 6-9, 11, 14-16, pi. 2; 

Bennett, 1945, p. 5.) Deposit: Dolomite, light-gray to gray to brownishgray; some impurities; stratigraphic thickness 450-500 ft. Fresh sample 

from outcrop, fragments taken every 5 ft, usually for a length of 50 ft. 

Tonnage estimated. Index and geologic maps. Possible use: General 

uses of dolomite; refractories, crushed stone.

242. Okanogan County. Triassic( Bennett, 1944). T. 35 N., R. 26 E., west 

of Riverside. Analyst, A. A. Hammer. Sample 23. (Shedd. 1913, 

p. 166, 167, 245. pi. 21.) Limestone, yellow, flinty. Index maps.

243. Okanogan County. NE< sec. 4, T. 34 N., R. 26 E., about 4 miles southwest of Riverside. Analyst, under supervision of Mark Adams; spectrochemical analyst. C. E. Harvey. Sarrple O-5. ( Mills. 1962, p. 12, 13, 

238. 245, 254, 264, pi. 1.) Limestone, gray to dark-gray, fine- to 

medium-grained, well-bedded; 34 of 57 ft sampled. Chip sample from 

outcrop. Index and geologic map. Possible use: None, rock impure.

244. Okanogan County. SEi sec. 1, T. 35 N., R. 25 E., southeast side of Dunn 

Mountain. Scholz property. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample O-4. (Mills, 1962, 

p. 12, 13, 232-234, 245, 254, 264, pi. 1.) Limestone, white to lightgray, medium-grained. Chip sample from three outcrops, represents 

52 ft. Tonnage estimated. Index and geologic map. Possible use: 

Portland cement.

245-249. Okanogan County. T. 35 N., R. 25 E., Dunn Mountain area. Analyst,

under supervision of Mark Adams; spectrochemical analyst, C.E. Harvey. 

( Mills, 196.2, p. 12, 13. 233, 235, 236, 245. 246, 254. 255. 264. pi. 1.) 

Limestone, dark-gray, fine- to medium-grained, siliceous. Chip sample 

from outcrop. Index and geologic maps. Possible use: None, rock impure.

245. NEiNEi sec. 12. W. G. Scholz property. Sample O-2 represents 

18ft.

246. SEi SEi sec. 12. McCain property. Sample O-53 represents 43 ft.

247. SEiSEi sec. 12. McCain property.

248. SEiSEi sec. 12. McCain property.

Sample O-54 represents 43 ft. 

Sample O-55 represents 43 ft.

249. SE^SEi sec. 12. McCain property. Sample O-56 represents 43 ft.

250. Okanogan County. SWi sec. 7, T. 35 N., R. 26 E., Dunn Mountain area. 

McCain property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample O-l. (Mills. 1962, p. 12, 13, 

233, 235, 236. 245. 254, 264, pi. 1.) Limestone, dark-gray, fine- to 

medium-grained, siliceous. Chip sample from outcrop, represents 38 ft. 

Index and geologic maps. Possible use: None, rock impure.

251. Okanogan County. NEiNW* sec. 26, T. 35 N., R. 26 E., 1 mile northwest of Riverside. Brown property. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Sample O-70. 

( Mills, 1962, p. 236-238, 246. 256, 264. pi. 1.) Limestone, gray, finegrained, siliceous, argillaceous, bedded; weathers gray with brownish 

streaks. Chip sample from outcrop taken across 48 ft. Index and geologic 

maps. Possible use: None, rock impure.

252-254. Okanogan County. Analyst, A. A. Hammer. (Shedd, 1913, p. 165, 166, 

167, 244, 245. pi. 21.) Index maps.

252. T. 35 N.. R. 25 E., near Riverside, Scotch Creek basin. Sample

18. Limestone, black to blue. 

*253. T. 35 N., R. 26 E., 3 miles west of Riverside. Sample 21. Magnesite, black. ^Analysis suggests 16.3 percent more MgO and

CaO than required for carbonate. 

254. [T. 37 N., R. 31 E.], west of town of Republic, Granite Creek.

Sample 11. Limestone, white to blue, schistose.

255, 256. Pacific County. Oligocene. SW*NWi sec. 24, T. 13 N., R. 8 W., 1.9 

miles southeast of town of Menlo. Lawson ranch deposit. Analyst, under

Footnotes of analyses on preceding page: 

'iron and alumina.

*By difference.

*9500-1.000<> C; also called CO».

4 Sample dried at 110e -112«C; ignition loss at l.OOO'-l.lOO'C.

*Na2O=270 ppm, K2O = 700ppm, TiC>2 = 310ppm, S = 390ppm. 

'insoluble.

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Samples PF 1-2; PF 1-1. ( Danner, 1966, p. 16, 19, 82, 434, 435. 447. 

456.) Limestone, bluish-gray, dense,fossiliferous; weathers light tan to 

cream. Chip sample, composite. Index and geologic maps. Possible 

use: Agricultural.

257. Pacific County. Oligocene. SEiNWj sec. 24, T. 13 N., R. 8 W., 1.9 

miles southeast of Menlo. Lawson ranch deposit. USED sample 176 B. 

( Hodge, 1938d. p. 13, 18, 20, 24; Danner, 1966, p. 82, 434, 435.) 

Limestone, bluish-gray, dense, fossiliferous; weathers light tan to cream. 

From outcrop 10 ft thick. Index and geologic maps. Possible use: 

Agricultural.

258-261. Pacific County. Oligocene. SEjSEj sec. 20, T. ION., R. 10 W. Bear 

River deposit. ( Danner, 1966. p. 82, 431-433, 434.) Limestone, 

bluish-gray to gray; in part dense vuggy algal material and in part coquina; 

weathers light brown or buff. Sample taken across 10 ft. Tonnage 

estimated. Index and geologic maps; measured section. Former use: 

Agricultural, lime.

262. Pend Oreille County. Precambrian, Priest River Group. NEi sec. 28, 

T. 35 N., R. 43 E., 1.5 mile north of Parker Lake. Hauck property. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample PO-26. ( Mills, 1962, p. 12. 13. 60, 246. 257. 

264, pi. 1.) Dolomite, light-gray, medium- to coarse-grained, silicified, 

friable. Chip sample from outcrop. Index and geologic map.

263-270. Pend Oreille County. Middle Cambrian, lower unit of Metaline Limestone. 

SWjNEj sec. 31, T. 38 N., R. 43 E.. 1 mile north of town of lone. 

Jordan or Alien quarry, abandoned. Index and geologic maps. Former 

use: Cement, flux. Possible use: None.

263-268. ( Mills, 1962, p. 54-57, 58, pis. 1, 2.) Limestone, gray, 

argillaceous, dolomitic.

269. 270. Analyst, under supervision of Mark Adams; spectrochemical

analyst, C. E. Harvey. Samples PO-7; PO-6. ( Mills, 1962, 

p. 12, 13, 54-58, 246. 256, 264.) Limestone, dark-gray, 

fine-grained, slightly dolomitic and argillaceous; contains 

numerous brown streaks and patches; weathered. Chip 

sample from outcrop.

271 - 273. Pend Oreille County. Metaline Limestone. Between sections 15 and 16,

T. 39 N., R. 43 E., about 1 mile north of town of Metaline Falls. Pend 

Oreille Mines and Metals Co., Pend Oreille mine. Analyst, 

E. T. Erickson. Drill hole 234. ( Park and Cannon. 1943, p. 2, 43, 72, 

73, pis. 1, 21, 22.) Mineralogy. Graphic presentation of analysis. Index 

and geologic maps, geologic sections. [For other analyses from same 

drill hole, see samples 602-620. group Fj.]

271. [Limestone], depth 550 ft.

272. [Calcareous dolomite], depth 440 ft.

273. [Limestone], depth 250 ft.

274. Pend Oreille County. Metaline Limestone. SWi sec. 29, T. 39 N..

R. 43 E. Metaline Mining and Leasing Co., Bella May mine. Analyst, 

J. G. Fairchild. Drill hole 42. ( Park and Cannon, 1943, p. 2. 43, 66, 

67, pis. 1, 21, 22.) [Limestone], depth 631 ft. Mineralogy. Graphic 

presentation of analysis. Index and geologic maps, geologic sections. 

[For other analyses from same drill hole, see samples 654-657, group Ft.]

275. Pend Oreille County. Paleozoic. NEi sec. 27, T. 39 N., R. 43 E., about 

1 mile southeast of Metaline Falls. Lehigh Portland Cement Co. ( Hodge, 

1938d, p. 13, 95, 122-^26.) Limestone, blue, bedded. Index and 

geologic maps. Use: Portland cement.

276-279. Pend Oreille County. T. 38 N., R. 43 E., town of Cement. Jordan 

property. ( Shedd, 1913, p. 180, 184, 245, pi. 21.) Limestone. 

Index maps. Possible use: Cement.

'includes FeO.

'Calculated from reported FeCOj, MgCOj, CaCO,, and (or) MnCOj. 

10 CO,, calculated from reported FeCOj, MgCOj, CaCOs, and (or) MnCOj. 

11 Insoluble (acid) 110e C. 

M MnCO».

487-187 O - 73 - 6
78 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska. Idaho, Oregon, and Washington.containing 75 to 90 percent carbonate (Group F& common- and mixed-rock categories Continued

Chemical analyses Continued

Washington Continued

SiO, _________

R»O«

MgCL _________

CaO __________

PjO, _________

Total ___

Class _________

CaO/MgO ______

280

46Fj26-21

__ 8.80

__ 2.00

__ 47.77

__ [58.57]

__ 5,6,84

__ Calcite

281

46F ,26-25

16.60 

2.92 

4.40 

38.28

[62.20]

12,9,78

Magnesian 

calcite

282 283

46F,26-19 46Fj26-52

6.92 14.76 

2.92 '2.80 

1.24 2.26 

48.65 42.63

39.34 35.84

99.07 98.29

2.9,87 10,8,79

_ . Magnesian Calcite B, . calcite

284

46F,26-70

7.00 

1 5.32 

1.52 

47.50

38.98

[100.32] 

0.12,86 

Calcite

285

46F ,26-61

10.54 

1 6.42 

2.99 

43.01

[62.96]

0,18,80

Magnesian 

calcite

286

46F, 28-50

15.95 

.78 

.39 

46.30 

.023 

*36.68

[100 . 12 ] 

15,2,83 

Calcite

287

46F,28-101

9.36 

1.41 

1.04 

48.38 

.092 

*39.16

[99.44] 

7,4.88 

Calcite

288

46F ,28-64

15.80 

2.00 

.23 

45.25 

.032 

*36.32

*[99.63] 

12,6,81 

Calcite

289

46F ,28-65

7.41 

1.91 

.21 

50.12 

.019 

*40.33

*[100.00] 

4,6.90 

Calcite

290

46F ,28-66

9.14 

1.17 

.27 

49.63 

.015 

*39.68

[99.90] 

7,4,89 

Calcite

291

46F ,28-76

19.05 

2.05 

.72 

43.13 

.023 

*34.86

[99.83] 

16.6,78 

Calcite

292

46F,28-134

15.57 

.79 

.17 

46.60 

.096 

*36.48

[99.71] 

14,2,82 

Calcite

Washington Continued

SiO, _________

MgCL _________

CaO __________

Total ____

Class ___ ______

CaO/MgO ______

293

46F ,28-54

__ 7.86

__ 2.37

__ 1.31

__ 48.62

__ .290

__ 39.30

__ 4[99.75]

__ 4,7.88

__ Calcite

294

46F,28-55

9.99 

1.16 

.21 

49.28 

.054 

39.18

[99.87] 

8,3.88 

Calcite

295 296

46F,28-133 46F ,28-132

11.87 19.29 

1.13 2.85 

.43 .30 

48.05 42.95 

.033 .052 

38.26 34.17

5 [99. 77] [99.61] 

10,3,86 15.8,76 

Calcite Calcite

297

46F ,28-78

14.32 

1.97 

.32 

45.81 

.034 

36.74

[99.19] 

11,6,82 

Calcite

298

46F ,28-79

11.35 

2.02 

1.83 

46.51 

.032 

38.30

[100.04]

8,6,85

Magnesian 

calcite

299

4 6F ,28- 128

9.12 

.72 

.15 

50.34 

.011 

39.54

[99.88] 

8,2,89 

Calcite

300

46F ,28-81

20.10 

1.43 

.68 

43.19 

.021 

34.53

'[99.95] 

18.4,77 

Calcite

301

46F ,28-82

18.84 

1.34 

1.68 

42.69 

.020 

35.15

'[99.72]

17.4,79

Magnesian 

calcite

302

46F ,28-80

16.94 

1.13 

.35 

45.30 

.039 

35.94

[99.70] 

15.3,81 

Calcite

303

46F, 28-46

22.22 

.60 

.18 

42.97 

.044 

34.09

[100.10] 

21,2,77 

Calcite

304

46F, 28-48

13.34 

1.05 

.17 

47.99 

.012 

37.36

[99.92] 

12,3,84 

Calcite

305

46F, 28-92

13.33

.93 

.29 

47.50 

.100 

37.29

[99.44] 

12.3,84 

Calcite

Washington Continued

SiO, _________

R*>, _________

MgCL _________

CaO __________

PjO, _________

306

46F, 

28-93

__ 13.31

__ .74

__ .28

__ 47.68

__ .078

307

29-134

9.03 

.92 

.36 

50.34 

.007

308 309

46F, 46F, 

29-128 29-122

13.37 13.35 

1.90 1.85 

.42 .42 

46.69 46.46 

.057 .073

310

46F, 

29-124

9.43 

.87 

.27 

49.41 

.055

311

46F, 

29-125

11.90 

1.77 

.48 

47.83 

.065

Ignition loss 

Total _

Class __ _ 

CaO/MgO_

306

46F, 

28-93

1 37.62

[99.71] 

12,2,85 

Calcite

307

46F, 

29-134

38.99

[99.65]

7.3.88 

Calcite

308

46F, 

29-128

37.23

[99.67] 

10.6,83 

Calcite

309

46F, 

29-122

37.47

[99.62] 

10.5,84 

Calcite

310

46F, 

29-124

39.51

[99.54]

8,3,89 

Calcite

311

46F, 

29-125

37.94

[99.98] 

9,5,85 

Calcite

'Sample dried at 110°-112«C; ignition loss 1,000»-1.100"C. 

' NatO = 300 ppm, KjO =490 ppm, TiO| = 810 ppm, S = 256 ppm. 

4With sample 766, group F,: Na,O = 270 ppm. K.f> = 610 ppm, 

TiO, = < 30 ppm , S = 70 ppm.

'With sample 785, group F,: NajO = 100 ppm, KjO = 560 ppm, TiO, = 250 ppm. 

S =470 ppm.

'With sample 63, group C and sample SJ 76-4, not recorded; NajO = 160 ppm, 

K,O = 420 ppm. TIO| = 260 ppm, S = 240 ppm.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LliO,BeO,BtOj,KiO,ScIO,,CoO,Z.nO,GaiO,,GeO,,A»p,,YtO,,Nbpl ,MoO,,Ru,Rh,Pd,C<

Sb^>».BaO,TeO,,Cs£>,La,O,.CeO,, Pr,O,, Nd-O,, Sm,O,, Eu,O,. Gd,O,, Tb,O,, DyjO,, HojO,, Er,O,, Tm,O,. Yb,O,, LujO,. HfO,, TajO5 . WO,, Re,OT , Os, Ir, Pt, Au.Tl,O,, PbO, 

BiiO,,ThO,,UO,; sample 287. Kf> = 1.13 percent]

Nap ________

TiO, ______

V,0, ________

0,0, _ _____

MnO ________

NiO ________

CuO ________

SrO ________

ZrO, _______

AgA -___ 

Na,CL ____

TiO, _______

VjO«

 -v

MnO ________

NiO ________

286

. __ 0.01

____ .00067

____ .09

____ .001

____ .0038

____ .013

299

____ 0.019

____ .057

287

0.55

.036

.0074

.10

.0026

.0038

.050

.0054

300

0.059

.07

.0016

288

0.068

.11

.0016

.087

.0018

.0031

.0056

.0015

301

0.04

.08

.001

289

0.075

.15

.0017

.085

.0012

.0026

.0098

.0016

302

0.075 ,

.021

nnnoi

.13

.0018

290

0.05

.031

.0010

.05

.001

.0018

.0098

.0012

303

0.011

.16

.0016

291

0.067

.053

.0017

.05

.0018

.005

.015

.0023

304

0.023

.37

.0018

292

0.05

.010

.0007

.13

.011

.011

305

0.05

.05

.003

.23

293

0.44

.034

.0030

.08

.001

.0030

.022

.002

306

0.18

.039

.003

.34

.001

294

0.05

.02

.003

.00074

.75

.001

.0021

-.018

307

0.59

.087

.05

295

0.10

.0021

.04

.0024

.0089

.028

308

0.19

.052

.007

.04

.0012

296

0.53

.063

.0022

.26

.002

.015

.011

.002

309

0.05

.045

.0067

.095

.002

297

0.14

.11

.0027

.11

.002

.0047

.025

.002

310

0.016

.0051

.033

.001

298

0.49

.12

.0018

.05

.0024

.0094

.025

.002

311

0.071

.056

.0064

.057

.001
ANALYSES OF SAMPLES 79

Spectrochemical analyses Continued

CuO _______

SrO ________

ZrO. _

A&0 _

299

. ____ 0.0029

. ____ .014

300

0.0057

.013

.002

301

0.0081

302

0.007

.16

303

0.0049

304 305 306 307

0.0047

.011

308

0.0030

309

0.0038

310

0.0012

311

0.0026

.021

DESCRIPTIVE NOTES \

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

280, 281. Pend Oreille County. T. 38 N., R. 43 E., town of Cement. Jordan property. 

( Shedd, 1913, p. 180, 184, 245, pi. 21.) Limestone. Index maps. 

Possible use: Cement.

282,283. Pend Oreille County. Analyst, A. A. Hammer. Index maps. Possible use: 

Portland cement.

282. T. 38 N.. R. 43 E., Cement. Jordan property. ( Shedd, 1913,

p. 180, 184, 185, 245. pi. 21.) Limestone, yellowish- to lightgray, crystalline, fine-grained.

283. T. 39 N.. R. 43 E., near town of Metaline. (Shedd. 1913, p. 180, 

189. _190, 250, pi. 21.) [Limestone] shale, dark-colored, 

almost black, very fine grained, finely laminated.

284. Pend Oreille County. [T. 39 N., R. 43 E.], Metaline Falls. Inland 

Portland Cement Co., quarry. ( Krejci, 1914, p. 927. 930, 936.) 

Limestone. Use: Portland cement.

285. Pend Oreille County. T. 39 N., R. 43 E., Metaline Falls, Sullivan Creek. 

( Shedd, 1913. p. 180, 193, 195, 250. pi. 21.) [Limestone] shale. 

Index maps. Possible use: Portland cement.

286. San Juan County. Early Pennsylvanian or Late Mississippian. N^SEi

sec. 20, T. 37 N.. R. 2 W.. Orcas Island. Engleharuon deposit. Analyst, 

under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 141, JL61-163, 448. 456.) Limestone, 

light-gray, organoclastic to crystalline; contains jasperoid. Thin-section 

description. Chip sample taken across 350 ft. Tonnage estimated. Index 

and geologic maps.

287.

288-290.

291.

292,

County, analysts, and maps as in sample 286. Mississippian and Permiarf?). 

SEi sec. 25, T. 37 N., R. 2 W., Orcas Island, about 2.5 miles by boat 

southeast of town of East Sound. Langdon deposit. (Danner, 1966, p. 16, 

19, 141, 191. 193. 450. 460.) Limestone, light-gray to blnish-gray. 

crystalline. Thin-section description. Chip sample taken across 50 ft. 

Tonnage estimated. Former use: Flux.

San Juan County. Early Pennsylvanian. SEiSWi sec. 16, T. 37 N., 

R. 1 W., Orcas Island. Mount Constitution deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Danner. 1966, p. 16, 19, 82, 141, 198, 199. 450. 460.) Limestone, 

dark-gray, dense to fragmental, fossiliferous; weathers buff; contains 

interbedded argillaceous material. Chip sample. Tonnage estimated. 

Index and geologic maps. Possible use: None, rock impure.

288. Sample SJ 77-1 taken across 325 ft.

289. Sample SJ 77-2 taken across 100 ft.

290. Sample SJ 77-3 single specimen.

County, age, analysts, maps, and use as in samples 288-290. NEiNEi 

sec. 19, T. 37 N., R. 1 W., Orcas Island, about 4 miles from town of 

East Sound. Wright deposit. Sample SJ 80-2. (Danner, 1966, p. 16, 19, 

82, 141, 203, 450, 461.) Limestone, argillaceous, dark-gray-buff, dense, 

fossiliferous; weathers brownish buff. Thin-section description. Chip 

sample.

San Juan County. Permian. NW 4 NE.1 sec. 22. T. 36 N., R. 4W., Henry 

Island, west side of Nelson Bay. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample SJ 59-2. (Danner. 1966, 

p. 16, 19, 82, 84. 129, 130, 449, 459.) Limestone, light-gray; interbedded with ribbon chert. Thin-section description. Chip sample taken 

across 100 ft. Index and geologic maps. Possible use: None, deposit 

small.

293 County, age, analysts, and maps as in sample 292. NEjSW; sec. 22, 

T. 37 N.. R. 2 W. Fowler deposit. Sample SJ 26-1. ( Danner, 1966, 

p. 16, 19, 82, 141, 164-166, 448. 457.) Limestone, argillaceous, siliceous, mostly crystalline; weathers buff. Chip sample taken across 90 ft. 

Tonnage estimated.

294. County, age, analysts, and maps as in sample 292. NWiNW^ sec. 23, 

T. 37 N., R. 2 W., Orcas Island, about 1 mile southwest by boat from 

town of East Sound. Judd Cove deposit. Sample SJ 27-1. (Danner, 1966, 

p. 16, 19, 82, 166. 167. 168, 448. 457.) Limestone, dark-gray to 

light-gray, dense to crystalline; carbonaceous and argillaceous; weathers 

light gray or buff; contains jasperoid. Chip sample taken across 30 ft. 

Possible use: None, deposit small and impure.

Washington Continued

295. County, analysts, and maps as in sample 292. Permiarf?). NWiNWi

sec. 29, T. 36 N., R. 3 W., San Juan Island. Rocky Bay quarries. Sample 

SJ 63-2. (Danner, 1966, p.l6.19.82,94,99._100,_449.459.) Limestone, 

blnish-gray, crystalline; interbedded with argillite. Chip sample taken 

across 125 ft. Tonnage estimated. Former use: Pulp and paper industry.

296. County, analysts, and maps as in sample 292. Late Triassic, Haro Formation. NE$ sec. 14 and NWi sec. 13, T. 36 N.. R. 4 W., San Juan 

Island. Davison Head deposit, Roche Harbor Lime and Cement Co. Sample 

SJ 50-2. (Danner, 1966, p. 16.19,82,84,121,^22,123,449.459.) Limestone, argillaceous, fossiliferous. Chip sample taken across 4.5 ft. Detailed measured section. Possible use: None, deposit small and impure.

297, 298. County, analysts, and maps as in sample 292. SW4 sec. 5, T. 36 N., 

R. 1 W., Orcas Island. Rosario deposit. Samples SJ 72-2, SJ 72-3. 

( Danner, 1966, p. 16, 19, 82, 141, 195, 196, 450, 460.) Limestone, 

dark-gray, finely crystalline; argillaceous interbeds. Chip sample. 

Possible usei None, deposit impure. 

297. Sample taken across 150 ft. 298. Sample taken across 200 ft.

299. County, analysts, and maps as in sample 292. Southpartofsec.il,

T. 36 N., R. 3 W., Jones Island. Sample SJ 33-2. ( Danner, 1966, p.16. 

19, 82, 94,^31, 132, 448, 458.) Limestone, gray, dense. Thin-section 

description. Chip sample taken across 20 ft. Possible use: None, deposit 

small and impure.

300, 301. County, analysts, and maps as in sample 292. NE* sec. 17, T. 37 N.,

R. 1 W., Orcas Island. Buck Mountain deposit. Samples SJ 76-1, SJ 76-2. 

( Danner, 1966, p. 16, 19, 82, 141, 197, 198. 450. 460.) Limestone, 

white to buff, finely crystalline. Chip sample. Tonnage estimated. 

Possible use: Cement. 

300. Sample taken across 20 ft. 301. Sample taken across 85 ft.

302. County, analysts, maps, and use as in sample 292. NWlNWj sec. 17,

T. 37 N., R. 1 W., Orcas Island. Buck Mountain deposit. Sample SJ 75-1. 

(Danner, 1966, p. 16.19.82,141,^97.450,460.) Limestone, argillaceous, 

gray, mostly crystalline; weathers buff. Chip sample, composite.

303. County, analysts, and maps as in sample 292. Near center SEi sec. 15,

T. 37 N.. R. 2 W., Orcas Island. Double Hill deposit. Sample SJ 16-1. 

( Danner, 1966, p. 16, 19, 82, 141, 152. 157. 158, 448, 457.) Limestone, light-gray to gray, mostly crystalline, fossiliferous; contains jasperoid. Thin-section description. Chip sample taken across 40 ft. Tonnage estimated. Possible use: None, deposit small and impure.

304. County, analysts, reference, and maps as in sample 286. SEiSEi sec. 15, 

T. 37 N., R. 2 W., Orcas Island, about 0.80 mile southwest of town of 

East Sound. Langell deposit. Sample SJ 13-1. Limestone, blue-gray 

to white, finely crystalline to deuse; contains argillaceous and cherty 

material. Thin-section description. Chip sample taken across 40 ft.

305, 306. County, analysts, and maps as in sample 292. SE^NE* sec. 22, T. 37 N., 

R. 2 W., Orcas Island. Fowler deposit. ( Danner, 1966. p. 16, 19, 82, 

141, 166, 168, 169. 448, 457.) Limestone, siliceous. Former nse: 

Lime. Possible use: None, deposit largely depleted.

305. Sample SJ 28-1; chip sample taken across 10 ft.

306. Sample SJ 28-2; chip sample, composite.

307. Skagit County. Devonian to Early Permian, Chilliwack Group. NE^NEj 

sec. 8, T. 35 N., R. 9 E. Jackman Creek deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst. C. E. Harvey. 

Sample St 14-2. ( Danner, 1966, p. 16, 19, 82, 269, 271, 275. 280, 

281. 451, 462.) Limestone, gray, finely crystalline, massive; about 

50-75 ft thick. Chip sample taken across 100 ft. Index and geologic maps.

308-311. County, age, analysts, and maps as in sample 307. T. 35 N., R. 10 E. 

Sutler Creek deposit. ( Danner, 1966, p. 16, 19, 82, 269, 290. 295- 

297, 451, 462.) Limestone, dark-gray to gray, massive to well-bedded to 

laminated, dense to finely crystalline; contains calcite veinlets and 

interbeds of black shale. Thin-section description. Chip sample. Possible 

use: Cement.

308. NE4 sec. 19. Sample St 11-8 taken across 174 ft.

309. SWi sec. 20. Sample St 11-2 taken across 25 ft.

310. SW4 sec. 20. Sample St 11-4 taken across 15 ft.

311. SWi sec. 20. Sample St 11-5 taken across 60 ft.
80 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing 75 to 90 percent carbonate (Group F|).common- and mixed-rock categories Continued

Chemical analyses Continued

SiOz _________

A120, .

Fe20, .

MgO_ _________

CaO __________

P205 _

S __________ .

Total __ .

Class _ ___ _ .

CaO/MgO ____ .

Si02 _________

A120, ________

Fe20, ________

Mga _________

CaO __________

Na2O _________

K 20 __________

P,ps _ _ ______

Total ___

Class _________

CaO/MgO ______

Si02 __ __ _ ___

A120, ________

Fe20, ________

FeO __________

Mga _________

CaO __________

P205 _________

S ____________

Total ____

Class- ________

CaO/MgO ______

312

46F, 

29-126

. __ 10.04

' 1 '135

. j

. __ .44

. __ 49.19

. __ .090

___ '38.95

. __ [100.06]

___ 8,4,88

___ Calcite

325

46Fj 

29- 148

. __ 12.72

. __ 1.31

, __ 1.15

. __ 1.07

. __ 46.76

. __ 36.84

. __ [99.85]

. __ 9.7,82

Calcite

338

46F,31-18

. __ 7.5

. __ 3.1

, __ 1.4

. __ 1.6

__ 47.5

'.05

, __ .276

__ B38.1

, __ [99.5]

. __ 0,13,83

, __ Calcite

313

46Fj 

29-127

8.91 

'2.01

2.48 

47.17 

.106

'39.48

[100.16]

6.6.88

Magnesian 

calcite

326

46Fj 

29-147

12.42 

1.14 

.90 

1.06 

47.27

37.00

[99.79] 

9,6,83 

Calcite

339

46Fr31-59

7.33 

| 3.36

1.85 

46.83

[59.37]

2,10,87

Magnesian 

calcite

314

46F, 

29-45

9.8

f 1:1

.6 

46.8 

2 <.01 

.005 

37.1

4[99.2] 

2,14.81 

Calcite

327

46F, 

29-145

12.43 

1.19 

.63 

1.04 

47.36

36.90

[99.55] 

10,5,82 

Calcite

340

46F,31-23

18.9 

i - 6

I 43.9

B34.5

[99.0] 

16,5,77 

Calcite

315

46F, 

29-46

9.4 

.5 

.3 

.2 

50.4 

2 <.01 

.016 

39.3

5[100.2] 

8,2,89 

Calcite

328

46F, 

29-146

11.69 

1.08 

.99 

1.10 

47.38

37.01

[99.25] 

9.6,83 

Calcite

341

46Fi31-22

22.3 

.5 

.4

42.4

B33.3

[98.9] 

21,2,75 

Calcite

Washington-Continued

316 317 318

46F, 46Fj 46F, 

29-89 29-108 29-107

9.04 12.64 21.74 

J J 1.27 '2.11 '1.62

.43 3.46 .36 

50.32 43.70 42.47 

.005 .045 .017

'38.75 '37.86 '33.76

[99.82] [99.82] [99.97]

7,4,87 9,6,84 19,5,76

_ Magnesian . Calcite °, Calcite calcite

Washington Continued

329 330 331

46F S 46Fi 46Fj 

29-23 29-80 31-73

13.00 17.65 19.08 

1 3.00 *1.26 J 1.57 

_____ .95 .30

44.00 43.97 43.89

_____ .054 .030

37.0 *35.86 '34.79

[97.0] '[99.74] [99.66] 

8,10,79 16,4,80 16,5.78 

Calcite Calcite Calcite

Washington Continued

342 343 344

46F,31-21 46Fi31-87 46F,33-6

13.0 20.53 T 8.1

( .8 1.51 "33.5 

\ 46.8 42.07 17.5

B 35.0 '34.52 M 39.3

[99.9] [100.39] 100.0

6,12,77 18,5,77 5,5,78

_ , _ , . Magnesian Calcite Calcite °^ . dolomite

319

46F, 

29-106

18.31 

! 4.74

.91 

41.72 

.038

'34.30

[100.02] 

10,14,75 

Calcite

332

46Fj 

31-72

20.99 

h.83

.35 

42.63

.049 

'33.75

[99.60] 

18.5,76 

Calcite

345

46F-43-155

'19.67 

'.20 

1.38

B 15.44 

25.56

"37.75

[100.00] 

( 19 , 1) 79 

Dolomite

320

46Fj 

29-102

10.64 

'.73

.87 

49.00 

.018

'38.68

[99.94] 

9,2,87 

Calcite

333

46F,

31-103

9.98 

( 1.98 

\ 1.52 

1.16 

48.66

37.82

[101.12] 

5,10,84 

Calcite

346

46Fi41-37

T16.9 

3.3

"25.0 

17.1

M 37.7

100.0

11,10,75

Magnesian 

dolomite

321

46F S 

29-6

12.68 

2.74

46.24

36.70

[98.36] 

8,8,82 

Calcite

334

46F, 

31-104

15.04 

.64 

2.18 

1.02 

45.97

36.25

[ 101.10] 

11.7,80 

Calcite

347

46F ,33-29

'7.65 

*1.12

U 36.56 

13.85

B40.82

100.00

(6,3)81

Dolomitic 

magnesite

322

46F, 

29-7

13.54 

3.90

43.34

36.11

[96.89] 

7,13,77 

Calcite

335

46F, 

31-105

13.24 

1.67 

.51 

1.03 

48.26

35.93

[100.64] 

10,6,80 

Calcite

348

46Fi33-55

»8.58 

"l.02

"46.47 

1.21

B42.72

100.00 

(7,3)82 

Magnesite

323

46F, 

29-8

13.65 

3.88

43.97

36.12

[97.62] 

7.12,78 

Calcite

336

46F, 

31-88

19.21 

1.18 

.66 

Trace 

44.55 

.06

.02

34.83

[100.51] 

16,5,78 

Calcite

349

46F ,33-45

'11.02 

"l.40

"43.44 

4.50

B39.64

100 .00

(9,4)76

Dolomitic 

magnesite

See following page for footnotes.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: Li2O,BeO,BjOj,K2O,Sc2Oj,CoO,ZnO,Ga2O3,GeO2,AsjO3,YjOj,ZrO2,Nb2O5 ,MoOj,Ag2O,Ru,Rh,Pd 

In2Os,SrO.,Sb2Oj,BaO,TeOj,Cs2O,La2Oj,CeO2 ,Pr2Oj,Nd2Oj,Sm2Os ,Eu2Oj,Gd2Oj,^ 

PbO,Bi2O,,ThO2 ,UO2; sample 319, K 2O =0.82 percent ]

Na2O ________ .

Ti02 _______ .

V205 .

Cr20, .

MnO ________ .

NiO _ ___ ___ .

CuO ______ _.

Sra _

312

0.05 

.030 

.011

.053 

.0028 

.0038 

.022

313

0.05 

.037 

.0064

.063 

.0017 

.0039 

.052

316

0.46 

.041

.0005 

.024

.0013 

.017

317 318 319

0.14 0.083 0.38 

.039 .035 .10 

.003 .003 .010 

.0011 .0009 .0013

.024 .012 .045 

.001 .001 .001 

.0020 .0023 .0021 

.016 .011 .018

320

0.01

.0005 

.018

.0013 

.0084

330

0.026 

.003 

.00083

.028 

.0018 

.0041 

.0098

331

0.071 

.025 

.003 

.00093

.067 

.001 

.0046 

.017

332

0.06 

.016 

.003 

.0015

.10 

.001 

.0068 

.012

337

0.05 

.058 

.003 

.00099

.20 

.001 

.0026 

.014

324

46F, 

29-5

11.70 

'3.84

46.75

36.92

99.21 

5,11,82 

Calcite

337

46Fi 

31-92

13.11

.45 

50.27

.025 

3 34.38

[99.44] 

11.4.77 

Calcite

350

46Fj33-44

'10.52

"33.55 

13.63

B41.12

100.00

(9,3)82

Dolomitic 

magnesite

,CdO, 

T120S ,

343

0.82 

.03

.0005 

.085

.037 

.034
ANALYSES OF SAMPLES 81

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

312, 313. Skagit County. Devonian to Early Permian, Chilliwack Group. T. 35 N..

R. 10 E., Sutler Creek deposit. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Samples St 11-6, St 11-7. 

( Danner, 1966. p. 16, 19, 82, 269, 290, 295-297. 451. 452.) Limestone, 

dark-gray to gray, massive to well-bedded to laminated, dense to finely 

crystalline; contains calcite yeinlets; interbeds of black shale. Thin-section 

description. Index and geologic maps. Possible use: Cement.

312. chip sample taken across 100 ft.

313. Chip sample taken across 94 ft.

314,315. Skagit County. Silurian and Devonian part of Chilliwack Group. SE^SEi 

sec. 23 or NEiNE* sec. 26, T. 35 N., R. 9 E. North Rockport deposit. 

Analysts, K. S. Johnson and Anthony Centenero. ( Popoff, 1943, p. 2, 6, 

7, 9, 11, 13, figs. 1, 3, 4; Danner. 1966. p. 82, 269, 289-292, 293, 

294.) General: Limestone, white to dark-gray, medium- to coarsegrained, massive, uniform texture; total thickness may exceed 100ft. 

Tonnage estimated. Index and geologic maps. Possible use: Agricultural, 

cement.

314. Contains thin seams of shale. Channel sample taken across 9.0 ft.

315. Channel sample taken across 8.0 ft.

316. Skagit County. Devoniari ?) part of Chilliwack Group. Ei sec. 16, 

T. 35 N., R. 10 E., Jackman Ridge. Meiklejohn and Brown Co., 

Broderick claim. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample St 18-4. ( Danner, 1966, p. 16, 19, 

82, 269. 271, 283, 284, 288. 451. 463.) Limestone, dense to finely 

crystalline, well-bedded, fossiliferous. Chip sample taken across 300 ft. 

Tonnage estimated. Index and geologic maps. 

317-320. Skagit County. Pennsylvania!) part of Chilliwack Group. Ej sec. 32,

T. 35 N., R. 9 E. Sutter Mountain deposit. Analyst, under supervision 

of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner. 1966, 

p. 16, 19, 82, 269, 301-J303. _451. 463.) Limestone, medium-crystalline. 

Chip sample. Index and geologic maps.

317. Sample St 23-1 taken across 32 ft.

318. Sample St 23-2 taken across 30 ft.

319. Sample St 23-3 taken across 45 ft.

320. Sample St 24-4 taken across 250 ft.

321 - 323. Skagit County. Early Pennsylvanian part of Chilliwack Group. Sees. 1, 2, 

T. 35 N., R. 8 E., about 1 mile north of town of Concrete. Superior 

Portland Cement Co. quarry. ( Hodge, 1935c, p. 71, J2; Danner. 1966, 

p. 82, 269, 271-^74.) General: Limestone, light- to dark-gray, dense 

to organoclastic and oolitic, well-bedded; about 500-600 ft thick. Thinsection description. Tonnage estimated. Index maps. Use: Portland 

cement.

321. Average of quarry run for the year 1935.

322. Average of quarry run for the year 1934.

323. Average of quarry run for the yeat 1932.

324- 328. County, age, group, general remarks, maps, and use as in samples 321-323. 

Center sec. 2, T. 35 N., R. 8 E., about 1 mile by road from Concrete. 

Lone Star Cement Co. ( Danner, 1966, p. 82, 269, 271-^73, 274.)

324. ( Hodge, 1938d. p. 13, 47, 48, 51, 52, 53.)

325. Weighted average for the year 1951.

326. Weighted average for the year 1952.

327. Weighted average for the year 1954.

328. Weighted average for the year 1953.

329. Skagit County. Early Pennsylvanian part of Chilliwack Group ( Danner, 

1966). [T. 35 N., R. 8E.], Concrete. (Hodge, 1935a, pi. 25.) 

Limestone. Tonnage estimated. Possible use: Flux.

330. Skagit County. Early Pennsylvanian part of Chilliwack Group. NW$ sec. 7, 

T. 36 N., R. 8 E., about 17 miles from Concrete. Washington Monument 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample St 22-1. ( Danner, 1966, p. 16, 19, 82, 

259, 260, 264, 265, 268, 451. 463.) Limestone, massive to thin-bedded, 

oolitic, organoclastic and crystalline textures. Chip sample taken across 

290 ft. Index and geologic maps. Possible use: Portland cement. 

331, 332. Age, analysts, and maps as in sample 330. Snohomish County. NW£ 

sec. 36, T. 32 N., R. 10 E., southeast of town of Darrington. Conn 

Creek deposit. Samples Sh 11-2, Sh 11-3. (Danner, 1966, p. 16, 19, 

82, 333, 335-337, 452. 464.) Limestone, gray, some brown, mostly

Washington Continued

crystalline or organoclastic; in beds 0.5-26 in. thick, alternating with 

gray-brown chert beds 0.75-8 in. thick. Chip sample taken across 

100 ft. Possible use: None, deposit small and impure. 

333-335. Snohomish County. Jurassic and Cretaceous. NEi sec. 21, T. 27 N.,

R. 9 E., near town of Gold Bar. Proctor Creek deposit. Drill holes 2 and 

3. ( Danner, 1966, p. 82, 353-JJ56, 358.) Limestone, black to gray, 

weathers light gray; contains calcite veinlets. Deposit small, tonnage 

estimated. Index and geologic maps. Logs of drill holes. Possible use: 

Agricultural, decorative stone. [For other analyses from drill holes, 

see sample 76, group C; sample 982, group Fj.]

333. Sample length 23 ft 5 in.; includes 2 ft of volcanics.

334. Sample length 28 ft 9 in.; includes 2 ft 10 in. of chert.

335. Sample length 25.5 ft; includes 9 in. of chert.

336. Snohomish County. Possibly Jurassic or Early Cretaceous. SE^SW* sec. 11, 

T. 27 N., R. 8 E., about 2 miles south of town of Startup. Sultan deposit. 

Analyst, T. Baldwin. ( Danner, 1966, p. 82, 343-345, 346.) Limestone, 

bluish-gray, fossiliferous; thin beds 1-24 in. thick; interbedded with 

chert. Tonnage estimated. Index and geologic maps. Possible use: 

None, rock impure.

337. Snohomish County. Late Jurassic or Early Cretaceous. SE* sec. 16, SWi 

sec. 15, T. 27 N.. R. 9 E., 2.5 mile east of Gold Bar. Marble qnarry 

area. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample Sh 14-3. ( Danner, 1966, p. 16, 19, 82, 

333, 339, 340. 348, 350-JJ52, 353, 452, 464.) Limestone, predominantly black; about 60 ft exposed. Chip sample taken across 40 ft. 

Index and geologic maps. Use: Agricultural, flux, calcium carbide 

manufacture, sugar refining, ornamental stone.

338, 339. Snohomish County. SE*SE* sec. 14, T. 32 N., R. 8 E., sonth of town of 

Portion. Galbraith deposit. ( Popoff, 1949b, p. 2-6, 8, figs. 1-4; 

Danuer, 1966, p. 82, 326, 327, 028-332, 333, 334.) General: Limestone, gray to black, massive. Mineralogy. Tonnage estimated. Index 

and geologic maps. Graphic representation of analyses. Possible use: 

None, rock impure.

338. Sample taken across 32.1 ft.

339. Sample taken across 303.0 ft; average of 98 samples. 

340-342. County, references, maps, and use as in samples 338. 339. NWjNEi

sec. 25, T. 32 N., R. 8 E., south of Fortson. Hi Hi deposit. General: 

Limestone, gray to nearly black, finely crystalline, massive.

343. County, analysts, reference, and maps as in sample 337. Nj sec. 24,

T. 32 N., R. 11 E., east of Darrington. Circle Peak deposit, roadcut. 

Sample Sh 2-1. Limestone, white to light-gray, medium to coarsely 

crystalline. Mineralogy. Chip sample taken across 75 ft. Possible use: 

None, deposit impnre.

344. Stevens County. Precambrian, [Edna Dolomite]. Sec. 36, T. 30 N.,

R. 37 E., Turk area. Analyst, F. G. Mehl. ( Bennett, 1941, p. 3, 12, 

21, 23, ^4, pi. 2.) [Magnesian dolomite.] General mineralogy. Index 

and geologic maps.

345. Stevens County. Edna Dolomite. SE« sec. 16, T. 30 N., R. 38 E., 

Springdale-Hunters Road. Analyst, V. North. Sample CM-13. 

( Campbell and Loofbourow, 1962, p. 3, 12. pis. 1, 2.) Dolomite. 

Index and geologic maps, correlated columnar sections, geologic sections.

346. Stevens County. [Edna Dolomite.] Sec. 21, T. SON., R. 38 E. One 

mile southwest of Firminhac quarry. Analyst, F. G. Mehl. ( Bennett, 

1941, p. 3, 12, 20, 23, 24, pi. 2.) [Magnesian dolomite], dark-gray, 

fine-grained; 125 ft bed. General mineralogy. Index and geologic maps. 

347-350. Stevens County. Precambrian . Stensgar Dolomite. SEiSWj sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. (Bennett, 1943, p. 3-7. 9. 19, 21, pi. 1.) General 

mineralogy. Tonnage estimated. Index map, geologic section. Possible 

use: Source of magnesia [ implied].

347. Lab. No. 211. [Dolomitic magnesite], outcrop sample. 

348-350. General: Magnesite, medium-crystalline; for the most part 

massive; occasional banding; channel sample.

348. Lab. No. 185. [Magnesite.]

349. Lab. No. 303. [Dolomitic magnesite.]

350. Lab. No. 304. [Dolomitic magnesite.]

Footnotes of analyses on preceding page:

^jO,.

'Calculated from reported P.

'sample dried at 110°-112e C; ignition loss 1,000°-1,100°C.

Analysis on dry basis.

5 Free C = 0.07 percent, calculated organic matter = 0.12 

percent; analysis on dry basis.

6 With sample 68, group C and sample 905, group F2 ; 

O = 185 ppm, KjO = 490 ppm, TiO, = 250ppm, S = 325 ppm.

7 Insoluble, mainly SiOz .

8 Insoluble.

'insoluble, includes silica and insoluble silicates. 

10 Iron and alumina.

By difference. 

u Reported as calculated. 

u At 950-C. 

14 Ma inly CO,. 

15 COj, reported as calculated.
82 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho. Oregon, and Washington, containing 75 to 90 percent carbonate (Group F^ common- and mixed-rock categories Continued

Chemical analyses Continued

Washington Continued

Insoluble _ _ __

RzO, 2 _________

MgO* ________

CaO _

Ignition loss 4 ____

Total ___

Class _________

CaO/MgO ______

351 352

46F,33-37 46Fi33-69

__ 17.09 10.71

__ 2.32 1.73

__ 28.35 22.09

__ 16.15 30.10

__ 36.09 35.37

__ 100.00 100.00

__ 13,7.72 8,5,73

Maenesian , 

__ .*> Dolomite dolomite

353

46F ,33-70

13.58 

1.46 

19.98 

27.10 

37.88

100.00 

11,4,79 

Dolbmite

354

46F, 33-86

9.76 

1.40 

20.75 

25.22 

42.87

100.00 

7.4,88 

Dolomite

355 356

46Fj33-97 46F, 33-98

9.25 8.07 

.90 .81 

22.75 26.91 

30.90 31.31 

37.20 32.90

[101.00] 100.00 

8,3,77 7,2.68 

Dolomite Dolomite

357

46F ,43-54

20.45 

.30 

19.70 

24.87 

34.68

100.00 

20,1,72 

Dolomite

358

46F,33-103

10.26 

.48 

21.73 

30.50 

37.03

100.00 

9.1,77 

Dolomite

359

46Fi43-61

11.90 

1.22 

19.52 

26.52 

40.84

100.00 

10.4,85 

Dolomite

360

46F ,43-62

17.04 

1.19 

18.05 

25.30 

38.42

100.00 

15,3,80 

Dolomite

361

46Fj33-120

19.10 

1.97 

30.81 

8.58 

39.54

100.00

16,6,77

Dolomitic 

magnesite

362

46F ,43-69

19.60 

1.36 

19.61 

27.32 

32.11

100.00 

17.4,67 

Dolomite

Washington Continued

Insoluble 1

RijO, 2 _________

MgO' _

CaO __________

Total ____

Class _________

CaO/MgO ______

364

46F, 

33-137

__________ 10.82

__________ 1.57

__________ 45.32

__________ 2.00

__ ______ 40.29

__________ 100.00

__________ 8.5.77

365

46F, 

33-149

14.74 

.83 

44.53 

8.00 

31.90

100.00

13.2.62

Dolomitic 

magnesite

366

46F, 

33-150

9.57 

.73 

45.93 

3.56 

40.21

100.00

8.2.77

Dolomitic 

magnesite

367 368

46Fi 46F| 

33-152 43-73

14.80 9.95 

1.05 .74 

36.01 20.34 

15.00 29.13 

33.14 39.84

100.00 100.00 

13,3,66 9,2.83

D°lomitlc Dolomite 

magnesite

369

46F, 

33-153

9.81 

.84 

43.48 

3.70 

42.17

100.00

8,2,81

Dolomitic 

magnesite

370

46F, 

33-157

8.76 

.71 

45.46 

1.93 

43.14

100.00 

8,2,83 

Magnesite

371

46F, 

33-160

9.18 

.54 

29.74 

17.89 

42.65

100.00

8.2,86

Magnesian 

dolomite

372

46F, 

33-189

13.04 

.55 

18.58 

31.63 

36.20

100.00

12.2,76

Calcareous 

dolomite

373

46F, 

33-191

12.70 

1.09 

39.57 

10.31 

36.33

100.00

11,3,71

Dolomitic 

magnesite

374

46F, 

43-77

15.91 

.70 

34.22 

13.24 

35.93

100.00

15,2,71

Dolomitic 

magnesite

363

46F,33-133

7.77 

1.08 

47.46 

.86 

42.83

100.00 

6,3,82 

Magnesite

375

46F, 

33-201

9.85 

1.01 

18.51 

32.85 

37.78

100.00

8.3,79

Calcareous 

dolomite

Washington Continued

RijOs* _________

MgO' ________

CaO

Class _________

CaO/MgO ______

376

46F, 

43-84

__________ 15.03

__________ 1.32

__________ 20.18

__________ 30.21

33.26

___ _____ 100.00

. __________ 13,4,69

377

46Fi 

43-86

12.79 

1.16 

16.44 

33.95 

35.66

100.00

11,3.76

Calcareous 

dolomite

378

46F, 

33-203

9.03 

.83 

21.38 

28.73 

40.03

100.00 

8,2,83 

Dolomite

379 380

46F, 46F, 

33-205 33-211

19.00 20.92 

1.08 .64 

19.88 20.14 

27.02 26.48 

33.02 31.82

100.00 100.00 

18.3,69 20,2,66 

Dolomite Dolomite

381

46F, 

43-103

7.75 

1.79 

43.23 

7.23 

40.00

100.00

5,5,77

Dolomitic 

magnesite

382

46F, 

33-224

8.89 

1.30 

47.81 

1.55 

40.45

100.00 

7,4,77 

Magnesite

383

46Fj 

33-232

7.18 

1.78 

31.26 

19.32 

40.46

100.00

4,5,81

Magnesian 

dolomite

384

46F, 

33-237

9.50 

1.71 

47.57 

1.50 

39.72

100.00 

7,5.76 

Magnesite

385

46F, 

33-243

15.31 

1.19 

21.15 

24.30 

38.05

100.00 

3,3.78 

Dolomite

386

46Fj 

33-254

15.45 

2.18 

21.64 

26.76 

33.97

100.00 

12.6,70 

Dolomite

387

46F, 

33-259

8.90 

1.04 

44.75 

3.42 

41.89

100.00

7,3,81

Dolomitic 

magnesite

'includes silica and insoluble silicates. 

2 Iron and alumina. 

*By difference. 

4 At 950°C.
ANALYSES OF SAMPLES 83

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

351-387. Stevens County. Precambrian, Stensgar Dolomite. SE?SW| sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. (Bennett, 1943, p. 3-7, 9, 21, pi. 1.) General 

mineralogy. Tonnage estimated. Index map, geologic section. Log of 

drill hole. Possible use of magnesite: Source of magnesium for lightmetal construction.

351. Lab. No. 314. Sample U-34-37. (Bennett, 1943, p. ^9.)

[Magnesian dolomite], channel sample from old mine adit.

352-354. Drill hole 1. ( Bennett, 1943, p. JIO.) [For other analyses 

from same drill hole, see samples 1025-1051, group Fj.]

352. Lab. No. 104. [Dolomite] magnesitic dolomite, 

gray; depth 108-126 ft.

353. Lab. No. 102. Dolomite, gray to light-gray; depth 

101-108 ft.

354. Lab. No. 85. Dolomite, yellow, green, pink; 

depth 21-26 ft.

355-360. Drill hole 2. (Bennett, 1943, p. 10, 11.) [For other analyses 

from same drill hole, see samples 89-92, group C; samples 

1052-1085, group F2 .]

355. Lab. No. 197. [Dolomite] magnesitic dolomite, 

light-gray to gray; depth 246.5-259 ft.

356. Lab. No. 195. [Dolomite] dolomitic magnesite, 

light-gray; depth 242-244.5 ft.

357. Lab. No. 161. Dolomite, light-gray; contains serpentine; depth 183.5-186.5 ft.

358. Lab. No. 159. [Dolomite] magnesitic dolomite, 

light-gray; depth 182-183 ft.

359. Lab. No. 148. Dolomite, white; contains chalcedony; 

depth 150-152 ft.

360. Lab. No. 147. Dolomite, pink; contains chalcedony; 

depth 147-150 ft.

361, 362. Drill hole 3. ( Bennett, 1943, p. 11. 12.) [For other

analyses from same drill hole, see samples 93-96, group C; 

samples 1086-1094, group Fs.]

361. Lab. No. 296. Dolomitic magnesite, white and 

multicolored; depth 270-278 ft.

362. Lab. No. 289. Dolomite, gray and brown; contains 

serpentine; depth 81.5-93 ft.

363, 364. Drill hole 4. ( Bennett, 1943, p. _12.) [For other analyses 

from same drill hole, see samples 1095-1110, group Fj.]

363. Lab. No. 245. Magnesite, medium- to dark-gray, 

medium-coarse texture; depth 140-170 ft.

364. Lab. No. 241. Magnesite, gray, medium-coarse 

texture; depth 118-121 ft.

365-371. Drillholes. (Bennett, 1943, p. 12. 13.) Rock, mediumcoarse texture. [For other analyses from same drill hole, 

see sample 97, group C; samples 1111-1117, group Ft.]

365. Lab. No. 281. [Dolomitic magnesite] magnesite, 

white; depth 258-259 ft.

366. Lab. No. 280. [Dolomitic magnesite] magnesite, 

white; depth 245-250 ft.

367. Lab. No. 278. [Dolomitic magnesite] magnesite, 

white; depth 209.5-210.5 ft.

Washington Continued

368. Lab. No. 277. Dolomite, gray; contains serpentine; 

depth 128-134 ft.

369. Lab. No. 274. [Dolomitic magnesite] magnesite, 

white; depth 117-120 ft.

370. Lab. No. 251. Magnesite, white, light-brown; 

depth 59-66 ft.

371. Lab. No. 248. [Magnesitic dolomite] dolomitic 

magnesite, white, friable; depth 0-35 ft.

372 - 374. Drill hole 10. ( Bennett, 1943, p. ^4.) Rock, medium-coarse 

texture. [For other analyses from same drill hole, see 

samples 98-105, group C; samples 1148-1155, group Fs.]

372. Lab. No. 341. [Calcareous dolomite] dolomite, 

white and light-gray; depth 321-322.5 ft.

373. Lab. No. 339. [Dolomitic magnesite] magnesite, 

white with gray; depth 289.5-293 ft.

374. Lab. No. 338. Dolomitic magnesite, white and gray; 

contains serpentine; depth 270-280 ft.

375-377. Drillhole 11. (Bennett, 1943, p. 14.) Rock, medium-coarse 

texture. [For other analyses from same drill hole, see 

samples 106-108, group C; sample 1156, group Ft.]

375. Lab. No. 361. [Calcareous dolomite] dolomite, 

light-gray; depth 186-203 ft.

376. Lab. No. 359. Dolomite, gray; contains serpentine; 

depth 150-173 ft.

377. Lab. No. 352. [Calcareous dolomite] dolomite, 

gray; contains serpentine; depth 83-112 ft.

Drill hole 12. ( Bennett, 1943, p. 14, Jj>.) [For other analyses from same drill hole, see samples 109-113, group C; 

samples 1157-1179, group F2 .]

378. Lab. No. 401. Dolomite, gray and white; depth 

422-429 ft.

379. Lab. No. 394. Dolomite, white, banded; depth 

327-334 ft.

380. Lab. No. 387. Dolomite, banded; depth 268-274 ft.

381-385. Drill hole 13. (Bennett, 1943, p. 15. 16.) Generals Magnesite, light-gray to yellowish, medium-crystalline, mostly 

massive. [For other analyses from same drill hole, see 

samples 114, 115, group C; samples 1180-1206, group Fs .]

381. Lab. No. 436, [Dolomitic magnesite] magnesite,

multicolored; contains serpentine; depth 214-222 ft.

382. Lab. No. 435. Magnesite. gray, white; depth 206- 

214 ft.

383. Lab. No. 427. [ Magnesitic dolomite] dolomitic 

magnesite, dark-gray; depth 157-161 ft.

384. Lab. No. 421. Magnesite, white to light-gray; 

depth 143-144 ft.

385. Lab. No. 414. Dolomite, dark-gray; depth 93-100 ft.

386. 387. Drill hole 14. ( Bennett. 1943, p. _16.) General: Magnesite, 

predominantly white; mostly massive. [For other analyses 

from same drill hole, see samples 116-121, group C; 

samples 1207-1217, group Fj.]

386. Lab. No. 460. [Dolomite] magnesitic dolomite, 

gray and white; depth 211-241 ft.

387. Lab. No. 446. [Dolomitic magnesite] magnesite. 

white and light-gray; depth 81-88 ft.

378-380.
84 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska. Idaho. Oregon, and Washington.containing 75 to 90 percent carbonate

( Group FjX common- and mixed-rock categories Continued

Chemical analyses Continued

W ashington C ontinued

Insoluble 1 ______ __

R.O,* -

MgO* ____________

CaO ___________ .

Ignition loss* _

Total ______ .

Class ____________

CaO/MgO _______ .

*388

43-113

. ______ 12.10

. ______ .66

. ______ 22.95

. ______ 31.13

. ______ 33.16

. ______ 100.00

__ _ ___ 11.2.69

389

46F, 

33-267

8.72 

.87 

23.73 

30.58 

36.10

100.00 

7.3.75 

Dolomite

*390

46Fi 

33-268

14.33 

.87

23.60 

30.23 

30.97

100.00 

13.3,64 

Dolomite

391 392

46Fj 46F, 

33-269 43-115

16.12 12.10 

.52 .24

22.38 42.34 

27.00 8.67 

33.98 36.65

100.00 100.00

15.2.70 12.1.72

Dolomitic Dolomite magnesite

393

46F, 

33-270

9.36 

1.77

30.19 

21.44 

37.24

100.00

6.5.75

Magnesian 

dolomite

394

33-289

6.55 

3.83

26.89 

22.45 

40.28

100.00

0.11.81

Magnesian 

dolomite

395

46Ft 

33-290

7.30 

1.97 

37.24 

11.02 

42.47

100.00

4,6.83

Dolomitic 

magnesite

Washington Continued

SiO, _____________

Al-0- 

Fe,0- 

FeO ______________

MgO _____________

CaO _____________

H,O+ ____________

H.OTotal ________

Class _____________

CaO/MgO __________

400

46F,33-12

______ 8 8.6

_______ )

_______ / 2 '5

______ 46.1

______ .4

______ *42.2

______ [99.8]

______ 4,7,80

401 402

46F-41-281 46F-41-282

514.0 

3.2

36.8 

4.3

*41.3

[99.6]

9,9,79

Dolomitic 

magnesite

5 10. 8 

2.6

39.4 

2.8

*43.9

[99.5] 

6,8.84 

Magnesite

403 404

46F-41-58 46Fi43-138

5 17.2 '8.1 

2.2 7 2.1

*25.1 19.5 

18.8 28.3

*36.7 42.6

100.0 [100.6]

14.6.74 (6,5)88

Magnesian _ , 

. ^ . Dolomite dolomite

405

46Fj41-73

5 8.1 

1.8

*20.3 

27.5

*42.3

100.0 

5,5,88 

Dolomite

406

46F -41-40

510.6 

3.9

*26.8 

18.7

*40.0

100.0

4,11.79

Magnesian 

dolomite

407

46Fi43-142

'9.4 

'1.9

19.3 

27.0

41.7

[99.3] 

(6,6)86 

Dolomite

396

46F, 

33-292

6.00 

3.84

24.65 

24.43 

41.08

100.00

0.10,83

Magnesian 

dolomite

408

46Fj41-42

5 9.3 

2.7

*27.8 

19.2

*41.0

100.0

5,8,82

Magnesian 

dolomite

*397

46F, 

41-1

15.28 

1.08

30.38 

21.60 

31.66

100.00

13.3,64

Magnesian 

dolomite

409

46F-41-92

18.18

(

AA 

M

1.17 

16.10 

24.74 

'.69 

9 .05 

"38.18

100.00 

17,3,79 

Dolomite

398

46Fj 

41-21

19.64 

1.27

17.99 

26.36 

34.74

100.00 

18.4.72 

Dolomite

410

46F -41-43

 1.7

19.6 

27.0

*50.8

[100.6] 

0,11,89 

Dolomite

399

46Fj 

43-128

9.11 

1.66

46.75 

2.97 

39.51

100.00 

6,5.76 

Magnesite

411

46F-41-96

6.48 

ll 4.20

41.53 

2.52

43.60

98.33 

0,11,82 

Magnesite

Washington Continued

SiO, _____________

MgO _____________

CaO _____________

P_05 _____________

Ag ______________

Au ____ . _________

Zn ______________

Pb ______________

Total ________

Class ______ ___

CaO/MgO __________

412

46F-13-144

______ *10.3

______ 7 1.8

______ 18.7

______ 26.8

______ 41.3

______ [98.9]

______ (7,5)86

413

46Ft43-2

B13.00 

*5.56 

*17.36 

25.79

*38.29

100.00 

4,16,78 

Dolomite

414

46F-43-3

*9. 28 

*3.32 

*18.80 

27.18

"41.42

100.00 

4,10.85 

Dolomite

415 416

46F-43-4 46F-43-5

15.50 14.56 

*1.22 *.73 

'15.28 '14.77 

28.75 30.15

*39.25 *39.79

100.00 100.00

13,4.83 13.2.84

Calcareous Calcareous 

dolomite dolomite

417

46F-43-6

"14.78 

*6.50 

*16.77 

25.16

"36.79

100.00 

4,19,74 

Dolomite

418

46F-43-7

14.04 

*1.38 

'15.56 

29.15

"39.87

100.00

12.4,84

Calcareous 

dolomite

419

46F.43-8

13.82 

*1.22 

'15.83 

29.03

"40.10

100.00

12.4.84

Calcareous 

dolomite

420

46F-43-9

15.59 

*1.02 

*14.95 

29.20

"39.24

100.00

14,3.83

Calcareous 

dolomite

421

46F|4 1-224

14.84 

3.40 

1.20 

44.88

34.90

99.22 

9,10,77 

Calcite

422 423

46F r42-1146Fr43-147

10.18 

74.91 

2.22 

44.17 

.024

"37.52

[99.02]

2.14,82

Magnesian 

calcite

11.5

18.9 

27.4

.10 

Trace

< .05 

< .05

[58.0] 

12.0.88 

Dolomite

Includes silica and insoluble silicates, 

'iron and alumina.

*By difference.

*At950°C.

'insoluble, mainly SiO,.

'insoluble.

'Above 110«C.

 At 110°C. 

"Mainly COj. 

"CO,.

"Also reported as insoluble. 

n 950°- 1,000°C; also called CO,, 

"sample dried at 110«- 112°C; ignition loss 1,000°-1.100°C.

Spectrochemical analysis

[ The metallic elements not detected in the spectrochemical analysis: 

Sb,C^.BaO.TeC^,Cs,0,La»0,,CeC^,tt,0,,Nd,C^.Sm,Os.Eu,0^ 

ThO,.UO,]

Na,0 _______

K,0 ________

422

. ____ 0.29

_____ 2.40

TiO,_ __ ___

VtOj _______

422

____ .003

Cr,0s _______

MnO _______

422

___ 0.0019

___ .34

1

JNiO __ __.

|cuO __ ______

422

. __ 0.0026

. __ .002

SrO _______

ZrO, ___ ___

422

____ 0.038

____ .0036
ANALYSES OF SAMPLES 85

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

388-399. Stevens County. Precambrian, Stensgar Dolomite. SE«SW* sec. 36, 

T. 30 N., R. 37 E.. near town of Turk. Analyst, under direction of 

W. W. Holbrook. (Bennett, 1943, p. 3-7, 9, 21, pi. I.) General mineralogy. Tonnage estimated. Index map, geologic section. Log of 

drill bole. Possible use of magnesite: Source of magnesium for lightmetal construction.

388-393. Drill hole 15. ( Bennett, 1943, p. J.6, 17.) General: Magnesite, light-gray to yellowish, medium crystalline, mostly 

massive. [For other analyses from same drill hole, see 

samples 1218-1235, group Ft.]

*388. Lab. No. 484. [Dolomite] magnesitic dolomite,

light-gray; contains green rock; depth 232-237 ft. 

* Analysis suggests 18.2 percent more MgO and 

CaO than required for carbonate. 

389. Lab. No. 482. [Dolomite] magnesiUc dolomite, 

gray with white; depth 209-217 ft.

*390. Lab. No. 481. [Dolomite] magnesitic dolomite,

white and light-gray; depth 198-209 ft. ^Analysis 

suggests 20.6 percent more MgO and CaO than 

required for carbonate.

391. Lab. No. 479. [Dolomite] magnesitic dolomite, 

white and light-gray; depth 186-194 ft.

392. Lab. No. 478. [Dolomitic magnesite] magnesite, 

gray and white; contains serpentine; depth 149- 

186 ft.

393. Lab. No. 477. [Magnesitic dolomite] dolomitic 

magnesite, light-gray; depth 147-149 ft.

394-396. Drill hole 16. (Bennett, 1943, p. _17.) General: Magnetite, 

light-gray to yellowish, medium crystalline; mostly massive. 

[For other analyses from same drill hole, see sample 122, 

group C; samples 1236-1247, group Fx .]

394. Lab. No. 496. [MagnesiUc dolomite] dolomitic 

magnesite, gray, white, and brown; depth 167- 

172 ft.

395. Lab. No. 495. [Dolomitic magnesite] magnesite, 

gray; depth 155-167 ft.

396. Lab. No. 493. Magnesitic dolomite, gray to white;

depth 122-146 ft.

*397. Drillhole 17. Lab. No. 516. (Bennett, 1943, p. ^7.) 

[Magnesitic dolomite] .dolomitic magnesite, white and 

gray; depth 219-222 ft. ^Analysis suggests 19.7 percent 

more MgO and CaO than required for carbonate. [For other 

analyses from same drill hole, see samples 123-126, group 

C; samples 1248-1259, group Fj.]

398, 399. Drill hole 19. ( Bennett, 1943, p. 18.) [For other analyses 

from same drill hole, see samples 1270-1284, group Fj.]

398. Lab. No. 549. Dolomite, dark-gray; contains pyrite; 

depth 321-330 ft.

399. Lab. No. 545. Magnesite, gray and white; contains 

serpentine; depth 233-248 ft.

400. Stevens County. Stensgar Dolomite. Sec. 36, T. 30 N., R. 37 E., Turk 

 area. Analyst, F. G. Mehl. Sample 80. (Bennett, 1941, p. 3, 12, 21,

23.^5, pi. 2.) Magnesite, coarse-grained. General mineralogy. 

Channel sample. Index and geologic maps.

401, 402. Stevens County. Stensgar Dolomite. NW} sec. 10, T. 30 N., R. 38 E., 

west and north of town of Springdale. U.S. Magnesite quarry. Analyst, 

F. G. Mehl. Samples 30, 31. ( Bennett, 1941, p. 3, 12. 19. 20, 23,

24. pi. 1.) General: Magnesite, intermixed with dolomite. Mineralogy. 

Index and geologic maps.

403. Stevens County. Stensgar Dolomite. NW} sec. 10, T. 30 N., R. 38 E.

Southwest of U.S. Magnesite quarry, from old pits. Analyst, F. G. Mehl. 

Sample 14. (Bennett, 1941, p. 3, 12, 20, 23, 24, pi. 1.) Magnesitic 

dolomite. General mineralogy. Index and geologic maps.

404. Stevens County. Stensgar Dolomite. Sec. 24, T. 31 N., R. 38 E. Collector, C. F. Deiss. Sample 4. ( Campbell and Loofbourow, 1962, 

p. F3, F8, F18, pis. 1, 2.) Dolomite. Index and geologic maps, geologic sections, correlated columnar sections.

405, 406. Stevens County. Stensgar Dolomite. T. 31 N., R. 38 E., Red Marble area. 

Analyst, F. G. Mehl. ( Bennett, 1941, p. 3, 12, 18. 23, 24, pi. 1.) 

General mineralogy. Index and geologic maps.

Washington Continued

405. NE corner sec. 35. Sample 4. [Dolomite],light-bluish-gray, finegrained to dense; weathers light gray. Outcrop sample.

406. Sec. 36. Sample 10. [Magnesian dolomite.]

407. Stevens County. Stensgar Dolomite. Sec. 9, T. 31 N.,'R. 39 E. Northwest Magnesite Co., Keystone quarry. Collector, C. F. Deiss. Sample 

3. ( Campbell and Loofbourow, 1962, p. F3, F8, F18. pis. 1, 2.) 

Dolomite. Index and geologic maps, geologic sections, correlated 

columnar sections.

408. Stevens County. Stensgar Dolomite. Sec. 32, T. 31 N., R. 39 E. Analyst, 

F. G. Mehl. Sample 13. (Bennett, 1941, p. 3, 12, 23, 24, pi. 1.) 

[Magnesian dolomite.] General mineralogy. Index and geologic maps.

409. Stevens County. Associated with Stensgar Dolomite. Sees. 1, 12, T. 31 N., 

R. 39 E., sees. 6, 7, T. 31 N., R. 40 E., 5 miles northwest of town of 

Valley. Washington State Marble Co. Analyst, R. W. Thatcher. ( Shedd, 

1903, p. 101, 102, 137, 142; Whitwell and Patty, 1921, p. 12, 18, 23,

27. 28, pi. 2.) [Dolomite], marble, pink. Bulk density 2.829. Thinsection description. Tonnage estimated. Index and geologic map, geologic sections. Physical properties. Possible use: Dimension stone.

410. Stevens County. Stensgar Dolomite. Sec. 31, T. 32 N., R. 40 E. Analyst, 

F. G. Mehl. Sample 24. (Bennett, 1941, p. 3, 12, 23, 24. pi. 1.) 

Dolomite. General mineralogy. Index and geologic maps.

411. Stevens Connty. Associated with Stensgar Dolomite. Sees. 30, 31,

T. 32 N., R. 40 E., 5 miles from town of Chewelah. Finch, Alien or 

Moss deposit. Analyst, A. A. Hammer. Sample 63. (Shedd, 1913, 

p. 125, 126, 246. pi. 21; Whitwell and Patty, 1921, p. 12, 18, 23, 27,

28. 41, pi. 2.) [Magnesite] limestone, light-gray. Tonnage estimated. 

Index and geologic maps, geologic sections. Use: None.

412. Stevens County. Stensgar Dolomite. NE*NEi sec. 32, T. 33 N., R. 40 E., 

4.7 miles northwest of Chewelah. Abandoned quarry. Collector, 

C. F. Deiss. Sample 1. ( Campbell and Loofbourow, 1962, p. F3, F8, 

F13-15, F18, pis. 1, 2.) Dolomite. Index and geologic map, geologic 

sections, detailed measured section, correlated columnar sections.

413-420. Stevens County. Cambrian, Old Dominion Limestone. Sec. 35, T. 34 N., 

R. 38 E., about 11 miles northwest of town of Addy. ( Bennett, 1944, 

p. 7, 31-33, pi. 10; Bennett, 1945, p. J15.) Deposit: Dolomite, lightgray to white, some banding, medium to coarsely crystalline. Fresh 

sample from outcrop, fragments taken every 5 ft, usually for a length of 

50 ft. Tonnage estimated. Index and geologic maps. Former use: 

Building stone. Possible use: General uses of dolomite; refractories, 

crushed stone.

413. NW?NE; sec. 35. Owner, W. G. Merryweather. Sample 508. 

414-419. NE?NW£ sec. 35. Owner, W. G. Merryweather.

414. Sample 509. 417. Sample 515.

415. Sample 510. 418. Sample 539.

416. Sample 512. 419. Sample 542. 

420. SEjNW* sec. 35. Sample 538.

421. Stevens County. Cambrian^?), Northport Limestone. Probably sec. 21, 

T. 35 N., R. 39 E., 1.5 miles south of town of Colville. Hams ranch. 

Analyst, A. A. Hammer. Sample 70. (Shedd, 1913, p. 132. 133. 246. 

pi. 21; Mills, 1962, p. 173, V74-176.) Limestone, dark; contains calcite seams; depth 35 ft. Tonnage estimated. Index and geologic map. 

Possible use: Portland cement. [For other analyses from same drill hole, 

see samples 1463-1465, group Fj.]

422. Stevens County. Northport Limestone. NWj sec. 35, T. 36 N., R. 39 E., 

3 miles north of Colville. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample S-116. ( Mills, 1962, 

p. 12, 13, 165, 167, 168. 249. 261. 264, pis. 1. 6.) Limestone, darkgray to black, fine-grained, medium-bedded, argillaceous; contains 

lenticles of dolomitic limestone. Chip sample from outcrop. Index and 

geologic maps. Possible use: None, rock impure.

423. Stevens County. Northport Limestone. Sec. 28, T. 38 N., R. 38 E., 0.25 

mile northeast of town of Bossburg. Young America mine. Analyst, 

under supervision of M. Wright. Drill hole 9. ( Hundhausen, 1949, p. 3, 

7, 9, JLO, figs. 1, 2, 6.) Silicified dolomite; depth 213.0-217.0 ft. 

Mineralogy. Index and geologic maps, geologic section. [For other 

analyses from same drill hole, see samples 1494-1503, group Ft .]
86 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho, Oregon, and Washington.containing 75 to 90 percent carbonate 

(Group Fj), common- and mixed-rock categories Continued

Chemical analyses Continued

W ashington C ontinued

SiO, _ .

A1.O-.

Fe.0, .

MgO .

CaO ___________ .

P.O, .

Ae

Au ____________ .

Zn __________ .

Pb ___________ .

Total ______ .

CaO/MgO __________

424

46F^3-146

. ______ 10.9

. ______ 17.8

_ ______ 26.9

. ______ .60

. ______ <.05

 __ ___ [56.2]

. ______ 11.0,85

. ______ Dolomite

425 426

46F,43-149 46Fr43-154

12.6

17.7 

26.2

.46 

Trace 

.20 

.30

[57.5] 

13.0,84

Dolomite

18.2

15.9 

24.3

.11 

Trace 

.10 

< .05

[58.7] 

18,0.77

Dolomite

427 428

46F,43-148 46F,42-12

11.6 11.40

 | ».34

16.3 .24 

27.6 49.35 

_____ .051

< .05 _____

_____ *38.56

[55.6] [99.94] 

12,0,83 11,1,87

Dolomite Calcite

429

46F ,42-13

9.11

'2.07

1.82 

47.79 

.030

*39.27

[100.09] 

6,6,87

Magnesian 

calcite

430

46F,42-147

8.61 

[ .94 

1 .49 

8.32 

40.96

40.30

[99.62] 

6,4.88

Magnesian 

calcite

431

46F,42-17

16.08 

.90 

.30 

3.10 

43.22

36.29

[99.89] 

14.3,81

Magnesian 

calcite

432

46F,42-18

9.23 

.35 

.14

1.45 

50.78

38.19

[100.14] 

8,1,86

Calcite

433

46F,42-19

12.06 

1.43 

.38 

2.16 

46.34

37.74

434

46F ,42-20

14.30 

.74 

.12 

1.05 

47.11

37.29

[100.11] [100.61] 

9,5,84 13,3,84

Magnesian _ , . *~ Calcite calcite

435

46F ,42-21

9.73 

.67 

.10 

1.13 

49.63

39.29

[100.55] 

8,2.88

Calcite

W ashington C ontinued

436 437 438

46F^1-154 46Fj41-167 46F^2-15

SiO, __ _____ __ _ .

Al,0, .

MgO .

CaO __________ .

Total

Class _____________

CaO/MgO _________

_______ *19.6

_______ 17.4

_______ 24.1

_______ 37.0

. ______ [98.7]

. ______ 19,2,77

, _ _ __ Dolomite

9.93 

'1.08

4 19. 02 

4 27.56

*42.41

[100.00] 

8,3,89

Dolomite

12.61 

( 1.00 

| 2.16 

1.91 

45.60

37.23

[100.51] 

8,8,82

Magnesian 

calcite

439 440

46F,42-162 46F^2-22

8.85 9.99 

.96 .26 

.04 .18 

.93 2.22 

50.21 48.30

39.31 39.33

[100.30] [100.28] 

7,3,88 9.1,88

Calcite , . calcite

441

46F,42-23

11.37 

} '.76

4.69 

44.00 

.004 

*39.44

[100.26] 

10,2,87

Magnesian 

calcite

442

46F ,42-24

14.21 

'.72

2.61 

44.72 

.004 

*37.60

[99.86] 

13,2.84

Magnesian 

calcite

443

46F ,42-25

11.10 

'1.44

1.20 

45.00 

.038 

*38.84

[97.62] 

9,6,83

Calcite

444

46F ,42-26

14.15 

'1.06

1.00 

44.00 

.033 

*37.75

[97.99] 

12,5,81

Calcite

445

46F ,42-27

21.52 

'.70

.49 

43.37 

.047 

*34.11

[100.24] 

20.2,77

Calcite

446

46F ,42-28

11.71 

'.94

.24 

48.57 

.026 

*38.50

[99.99] 

10,3,87

Calcite

447

46F ,42-29

10.84 

'.70

.27 

48.82 

.024 

*39.10

[99.75] 

10,2,88

Calcite

Washington Continued

SiO, .

Al,0, .

Fe,0, .

MgO ___________ .

CaO _________ .

H.OPA .

MnO __________ .

Total ______ .

Class __________ .

CaO/MgO _______ .

448

46F ,43-145

10.47 

1.85 

.56 

.57

15.03 

32.66 

6 .57 

'.10

»38.19

100.00 

7,7,82

Calcareous 

dolomite

449 450 451

46F,42-291 46F ,43-163 46F,43-150

5.59 

1.69 

.79

42.25 

1.48

| T 11.75

.13 

'36.48

[100.16] 

2,18,70

Magnesite

15.18 14.43 

_____ 2.53

_____ 1.86

Trace ______

17.02 17.50 

27.69 24.99

*40.55 38.58

100.44 99.89 

15,0,85 8,12,79

Dolomite Dolomite

452

46F,43-152

17.59 

.48 

.56 

1.06

15.46 

26.52

{ 'Trace

'38.25

99.92 

16,3,80

Calcareous 

dolomite

453

46F ,41-223

2.18 

} '.80

36.13 

4.99

54.09

*98.19 

1,13.84

Dolomitic 

magnesite

454

46F,41-117

23.32

{ .19

.32

42.46

 .05

»33.44

99.78 

23,1,76

Calcite

455

46F ,37-74

15.72

.69 

44.33

.066

*35.70

[99.16] 

11,8.79

Calcite

456

46F ,37-53

7.70 

1 1.48

.46

50.08

.050

*40.70

"[100.47] 

5.5,90

Calcite

457

46F,37-54

8.16 

1.66

.55 

49.78

.049

*39.97

"[100.17] 

5,5,89

Calcite

458

46F ,37-66

9.70 

'.77

.21 

49.73

.014

39.32

[99.74] 

8,2.89

Calcite

'Sample dried at 110«-112*C8 ignition loss 1.000°-1.100aC.

'includes insoluble.

'Calculated from reported MgCOj and (or) CaCO|.

*COj, calculated from reported MgCOj and CaCOj.

'Above 110"C.

7 Calculated from reported ignition loss minus CO!.

 CO..

"98.37 percent in text. 

u NatO= 225 ppm, KtO = 560 ppm, 

TiOj = 315 ppm, S = 150 ppm.

Spectrocbemical analyses

[ The metallic elements not detected in the spectrochemical analysis: Li,O,BeO.B,Ot,Sc2O, l CoO,ZnO,GaiO,,GeOj,As1O,,Y,O,.Nb|O$ ,MoO,,AgiO,Ru,Rh l Pd,CdO,IntO,,SnOj.

,^^

Na»O ____________

K,0 ____ __ ___.

TiO, ____________

V,0S . Cr.0, ___________

MnO ___________ . NiO ___________ . CuO ___________ ,

SrO __________ . ZrOj ___________

PbO __________ .

428

_______ 0.015

_______ .012

_______ .0024

_______ .013

429

0.43

1.28

.15

.0017

.29

.0036

.029

.019

.005

441

0.004

.00096

.105

.0022

.018

.020

442

0.051

.001

.0042

.021

443

0.022

.0016

.33

.0022

.013

444

0.010

.0014

.24

.0014

.014

445

0.024

.0008

.066

.0015

.015

446

0.018

.0014

.063

.0052

.025

447

0.016

.0012

.075

.0031

.027

455

0.26

.056

.0064

.0021

.21

.004

.0030

.014

.002

456

0.029

.0076

.0007

.14

.0026 '

.0030

.021

457

0.035

.0081

.00083

.13

.0026

.0048

.028
ANALYSES OF SAMPLES 87

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

424-427. Stevens County. Cambrianl?), Northport Limestone. Sec. 28, T. 38 N., 

R. 38 £., 0.25 mile northeast of town of Bossbuig. Young America mine. 

Analyst, under supervision of M. Wright. Drill hole IS. ( Hundhausen, 

1949. p. 3, 7, 9,^0.^1, figs. 1, 2, 8.) Silicifled dolomite. Mineralogy. 

Index and geologic maps, geologic section. [For other analyses from same 

drill hole, see samples 1504-1514, group Fa .]

Depth (ft)

424. 191.9-197.0

425. 186.5-189.8

428. Stevens County. Northport Limestone. Sec. 33, T. 38 N., R. 38 E.,

0.75 mile east of Boss burg. Carrol property. Analyst, under supervision 

of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample S-103. 

( Mills, 1962, p. 12, 13, 107, 108, 110, J12, 113, 249, 260, 264, pi. 1.) 

Limestone, white through gray to dark-gray, medium-grained, thinbedded. Chip sample from outcrop. Tonnage estimated. Index and 

geologic maps. Possible use: Cement, mineral filler, builders' lime, 

ceramic whiting; sugar, pulp and paper industries.

429. County, formation, analysts, and maps as in sample 428. Sec. 13,

T. 39 N., R. 39 E., about 3 miles southwest of town of Northport. South 

of Janni quarry. Samples-184. (Mills, 1962. p. 12. 13, 74, 16-18, 

250, 263. 264, pi. 1.) Limestone, gray, fine- to medium-grained, thinbedded. Chip sample from outcrop.

430-435. Stevens County. Northport Limestone. SW^SWj sec. 26. T. 39 N.,

R. 39 E., 6 miles southwest of Northport. Ideal Cement Co. Diamonddrill hole 4A, drilled at inclination of +15*. ( Mills, 1962, p. 74, 96. 

97, 100, 101, 102, pis. 1, 4.) Limestone, white to light-gray, mediumto coarse-grained, relatively massive. Estimated thickness 750 ft. Tonnage estimated. Index and geologic maps, geologic section. Possible use: 

Cement. [For other analyses from same drill hole, see samples 133-135, 

group C; samples 1610-1622, group Fj.]

Drill hole interval (ft) Drillhole interval (ft)

430. 229-241 433. 580-603

431. 261-276 434. 603-626

432. 570-580 435. 626-655

436, 437. Stevens County. Northport Limestone. NEi sec. 27, T. 39 N., R. 39 E., 

2 miles east of town of Marble. ( Deiss, 1955, p. 119-121, 127, 132, 

133-135, pis. 14, 15.) Index and geologic maps, geologic sections, 

detailed measured section.

436. Analyst, E. S. Leaver. Sample 26. Unit description: Dolomite, 

gray, finely crystalline, dense, slightly vitreous on fresh 

fracture; contains quartz; 18 ft thick.

437. Analyst, Esther daffy. Sample 39. Dolomite.

438,439. Stevens County. Northport Limestone. NEjNWi sec. 35, T. 39 N.,

R. 39 E., 6 miles southwest of Northport. Ideal Cement Co. Diamonddrill hole 1. drilled at inclination of -45°. (Mills, 1962. p. 74, 96, 97. 

99, 100, 102, pis. 1, 4.) Tonnage estimated. Index and geologic maps, 

geologic section. [For other analyses from same drill hole, see sample 

103. group E; samples 1665-1676, group F2 .]

438. Unit description: Limestone, gray, fine-grained, bedded; total

thickness at least 800 ft. Sample depth 792-800 ft. Possible use: 

None, rock impure.

439. Unit description; Limestone, white to light-gray, medium- to

coarse-grained, relatively massive; estimated thickness 750 ft. 

Sample depth 490-561 ft. Possible use: Cement.

440. Stevens County. Northport Limestone. NWjNWi sec. 35, T. 39 N.,

R. 39 E., 6 miles southwest of Northport. Ideal Cement Co. Diamonddrill hole 11, drilled at inclination of -45°. ( Mills, 1962, p. 74, 96-j)9, 

102, pis. 1, 4.) Unit description: Limestone, dark-gray to black, 

medium- to coarse-grained; about 200 ft thick. Sample depth 210-280 ft. 

Tonnage estimated. Index and geologic maps, geologic section. Use: 

None, rock impure. [For other analyses from same drill hole, see 

samples 1677-1681, group F,.]

441. 442. Stevens County. Permian. Sec. 3, T. 34 N., R. 37 E. Heidegger Hill 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst. C. E. Harvey. Samples S-127, S-128. (Mills, 1962, p. 12, 13, 

147, 149, J150, 151, 249, 261, 264, pis. 1, 5.) Limestone, light-gray to 

gray, fine- to medium-grained, massive. Chip sample from outcrop. 

Index and geologic maps. Possible use: None, rock impure.

Washington Continued

443, 444. County, age, analysts, maps, and use as in samples 441, 442. SEi sec. 17. 

T. 36 N., R. 38 E., 0.25 mile north of town of Kettle Falls. Hanson 

property. Samples S-2, S-4. (Mills, 1962, p. 12, 13, 135, 138, 142, 

J43, 247, 257, 264. pi. 1.) Limestone, gray, medium -grained, massive, 

fossiliferous. Chip sample from outcrop.

445-447. County, age, analysts, maps, and use as in samples 441, 442. Sec. 15,

T. 37 N., R. 38 E., about 1 mile south of town of Evans. Ideal Cement 

Co. (Mills, 1962, p. 12, 13, 123, 125. ^26, 248, .249, 259, 261, 264, 

pi. 1.) Chip sample from outcrop.

445. NEiSWi sec. 15. Sample S- 59. Limestone, thin-bedded. 

446,447. SEiSEi sec. 15, Samples S- 134, S- 135. Limestone, massive.

448. Stevens County. [T. 31 N. , R. 40 E.] , 5 miles northwest of town of

Valley. Washington State Marble Co. Analyst, R. W. Thatcher. ( Shedd, 

1903, p. 101, _102. ^42.) [Dolomite] marble, green. Thin-section 

description. Possible use: Dimension stone.

449. Stevens County. [T. 32 N., R. 40 E.], near town of Chewelah. ( Bates

and Rapp, 1923, p. 529, 530, 532. 535. 538, 539. 544, 545, 548, 549, 

555.) Magnesite, crystalline; large deposit. Physical tests. Use: 

Refractories. Possible use: Caustic magnesia for oxychloride stucco or 

flooring [ implied] .

450. Stevens County. Sec. 18, T. 32 N., R. 41 E., near Chewelah. Northwestern Marble Co. Analyst, R. W. Thatcher. (Shedd, 1903, p. 129, 

142| Eckel, 1912, p. 171. 173.) [Dolomite] marble, almost black, 

crystalline; at least 200 ft thick. Former use: Lime.

451. Stevens County, si sec. 32, T. 33 N., R. 40 E., near Chewelah. Highway quarry. ( Hodge, 1938c, p. 3. 15, 22, 31, 48. 53.) [Dolomite], 

argillaceous, thin-bedded. Index and geologic maps. Use: Road metal.

452. Stevens County. Probably sec. 32, T. 33 N. , R. 40 E.. about 4 miles 

northwest of Chewelah. The Great Western Marble Co. Analyst. 

R. W. Thatcher. ( Shedd, 1903, p. 122, 123. 124, 137, 142; Eckel, 

1912, p. 171, 173.) [Dolomite] marble, dark-pink, crystalline, 

generally massive. Thin-section description, physical properties. Possible 

use: Dimension stone.

453. Stevens County. [T. 35 N., R. 39 E.] , town of Colville, Mud Lake.

Weisners farm. Analyst, A. A. Hammer. Sample 57. ( Shedd, 1913, 

p. 246.) [Dolomitic magnesite] dolomitic marl, snow-white.

454. Stevens County. Sees. 22, 27, T. 39 N., R. 39 E., 1 mile from town of

Marble. Columbia River Marble and Lime Co. Analyst, R. W. Thatcher. 

(Shedd, 1903, p. 131,132,^42; Eckel. 1912, p. ,171.) [Limestone] marble, black, crystalline, fine-grained. Possible use: 

None.

455. Whatcom County. Devonian to Early Permian, Chilliwack Group. NW* 

sec. 5, T. 40 N., R. 6 E. Northwest Black Mountain deposit. Analyst, 

C. S. Homi; spectrochemical analyst, C. E. Harvey. Sample W 20-1. 

( Moen. 1962, p. 4, 8, 92, 97, 100, pi. 1; Danner, 1966, p. 16, 19, 

82. 210. 244, 245. 453, 466.) Limestone, fossiliferous. Chip sample. 

Index and geologic maps, geologic sections. Possible use: None, rock 

impure .

466, 457. County, age, group, analysts, and maps as in sample 455.

sec. 7, T. 40 N., R. 6 E., Red Mountain. Silver Lake deposit. ( Moen, 

1962, p. 4, 8, 88, 97, j}9. 119, pi. 1; Danner. 1966, p. 16, 19, 82, 

210, 223. 224. 225, 453, 465.) Limestone, gray, dense; contains chert, 

argillite; fossiliferous. Thin- section description. Small tonnage. Chip 

sample. Geologic sections. Possible use: Concrete aggregate, ballast, 

cement, road metal, riprap.

456. Sample W 9-1 taken across 150 ft.

457. Sample W 9-2 taken across 60 ft.

458. Whatcom County. Devonian part of Chilliwack Group. NWj NEi sec. 8. 

T. 40 N., R. 6 E., Black Mountain. Analyst, C. S. Homi; collector, 

W. R. Danner. Sample W 21-1. ( Moen, 1962, p. 4, 8, 15, 92, 96, 

JU)0, 119, pi. 1.) Limestone, medium-gray, dense to finely crystalline; 

weathers bluish gray to buff. Outcrop sample . Moderate to large tonnage . 

Index and geologic maps, geologic sections. Possible use: Concrete 

aggregate, ballast, road metal, riprap.
88 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 6. Analyses of samples from Alaska, Idaho, Oregon, and Washingtorucontaining 75 to 90 percent carbonate 

(Group F,), common- and mixed-rock categories Continued

Chemical analyses Continued

Washington Continued

CiO.

ALA 

Fe,0, 

MgO 

CaO 

Na.O

K,0 ___ ______________

P,0S 

Total ___________

Class ______________

CaO/MgO _____________

459 460

46F, 46F, 

37-79 37-82

. 11.25 11.87

1 '.97 '2.00

__________ .36 .46

__________ 48.43 47.55

__________ .009 .023

__________ *38.54 *37.80

__________ [99.56] [99.70]

__________ 10,3,87 9,6,85

_ _ _____ _ Calcite Calcite

461

46F, 

37-83

9.43 

'l.43

.47 

49.19

.026 

*39.04

[99.59]

7,4,88 

Calcite

462

46F, 

37-29

8.96 

2.44

1.01 

48.46

39.16

100.03

5,7,87 

Calcite

463

46F, 

37-162

9.

1

49.

*39.

61

79

19 

80

014

34

[99.74]

8,2,89 

Calcite

464

46F, 

37-135

17.72 

( 1.30 

I .85 

.68 

43.93 

.02 

.07

35.14

[99.71]

14,6,78 

Calcite

465

46F, 

37-136

13.59 

.51 

.37 

.35

47.24 

.00 

.01

37.63

[99.70]

12,2,85 

Calcite

466

46F, 

37-137

14.78 

.66 

.53 

.67 

45.85 

.00 

.02

37.05

[99.56]

13,3,83 

Calcite

467

46Fj 

37-50

7.45 

} '2.44

.52 

49.78

.023 

*39.84

'[100.05]

3,7,89 

Calcite

468

46F, 

37-51

18.66 

.73

.53 

44.52

.035 

35.60

[100.08]

17,2,80 

Calcite

469

46F, 

37-149

18.65 

'.72

.55 

44.42

.035 

*35.61

'[99.98]

17.2,80 

Calcite

Washington Continued

SiOj ___ _______________

Al.Pi .

FejO, _________________

MgO .

CaO __________________

P»0j .

Ignition loss ___ _________

Total __________ .

Class _________________

CaO/MgO _______ _____

470

46F, 

37-111

. __________________ 11.40

. __________________ 2.47

. __________________ 1.15

. __________________ 1.04

. __________________ 46.11

. __________________ 37.83

. __________________ [100.00]

, __________________ 6.10,84

________________ Calcite

471

46F, 

37-114

9.47 

} '1.52

1.03 

48.65

39.65

472

46F, 

37-115

13.57 

 2.32

1.80 

46.06

37.40

[100.32] [101.15] 

7,4,89 10,7,83

_ , . Magnesian Calcite 6 calcite

473

46F, 

37-116

10.

h.

i.

47.

38.

83

78

29

0

90

[99.8] 

8.5.87

Calcite

474

46Fj 

37-118

12.75 

'2.00

1.14 

46.50

38.70

[101.09] 

9.6,85

Calcite

475

46Fj 

37-119

9.87 

'l.68

1.36 

48.43

39.00

[100.34] 

7.5.87

Calcite

476

46F, 

37-2

17.32 

.94

.50 

45.84

34.94

99.54 

16,3,79

Calcite

477

46F, 

37-11

9.06 

1.90

.50 

49.73

38.52

99.71 

6,6.86

Calcite

478

46F, 

37-42

8.74 

'.97

.77 

49.74 

.024 

*39.65

[99.89] 

7,3,89

Calcite

479

46F, 

37-43

20.96 

'2.91

1.20 

41.01 

.034 

*33.60

[99.71] 

16,9,74

Calcite

Washington Continued

SiOj .

R_0, .

MgO ________________ .

CaO ________________ .

P,0S .

Total __________ .

Class ________________ .

CaO/MgO _____________ ,

480

46Fj37-44

_____ ___________ 14.90

_________________ .86

.__ _______________ 1.08

_________________ 45.75

_________________ .026

_________________ *36.90

_________________ [ 99.52]

_________________ 13,3,83

481

46F ,37-45

17.27 

2.30 

1.03 

43.52 

.049 

*35.56

482

46Fi37-65

17.04 

.99 

13.76 

30.26 

.020 

*38.47

[99.73] [100.54] 

13,7,79 15,3,82

_ Calcareous Calcite , , dolomite

483

46F ,37-68

11. 

1.

48. 

*38.

01 

63 

40 

52 

018 

34

[99.92] 

8,5,86

Calcite

484 485

46F,37-130 46F,37-122

14.74 

.47 

.20 

47.17 

.012 

*37.25

[99.84] 

14,1,84

Calcite

10.22 

.89 

3.26 

45.54 

.024 

*39.72

*[99.65] 

9,3,88

Magnesian 

calcite

486

46F ,37-73

14.70 

4 .47 

.20 

47.17 

.012 

37.28

[99.83] 

14,1,84

Calcite

487

46F ,37-146

8.04 

1.94 

.40 

48.32 

.018 

*41.04

[99.76] 

5,8,87

Calcite

488

46F,37-127

7.92 

2.16 

.79 

49.02 

.076 

*38.98

[98.95] 

4,6,87

Calcite

489

46F,37-163

21.23 

2.11 

.67 

42.04 

.076 

*33.47

[99.60] 

18,6,75

Calcite

See following page foi footnotes. 

[ The metallic elements not detected

Specttochemical analyses 

in the spectrochemical analysis: LijO.BeO.BtOj.KtO.SctOj.CoO.ZnO.GajOj.GeOj.AsjOj.YjOj.NbtOj.MoOj.Ru.Rh.Pd.CdO.ImOj.SnOj.SbjO,

Na,0_ ____ __

TiO, ____

V,05 ___________

Ct,0, ___________

MnO ______ _

NiO ____________

CuO ___________

StO ____________

ZrO, ___________

Ag,0 ___________

Na,O ___________

TiO, __ _________

VZ 05 ___________

Cr,0, ___________

MnO ___________

459

_________ 0.023

_________ .0005

_________ .062

_________ .0045

_________ .0093

484

_________ 0.010

_________ .00096

_________ .043

460

0.05

.032

.00099

.062

.0024

.0075

.0091

485

0.022

.0005

.094

461

0.31

.11

.0005

.062

.0025

.011

487

0.30

.066

.00064

.05

463

0.020

.003

.0005

.057

.001

.0043

.013

488

0.19

.045

.0075

.0011

.16

467

0.082

.11

.0098

.0015

.30

.001

.0025

.010

489

0.20

.084

.003

.0015

.30

469

0.017

.00074

.076

.001

.0042

.0048

NiO ______

CuO _____

StO ______

ZrO, _____

Ag,0 _____

478

0.082

.029

.003

.0005

.10

.0021

.012

479

0.034

.003

.00096

.08

.0024

.0075

.013

.002

484

0.001

.0035

.015

480

0.025

.003

.00074

.11

.001

.0064

.0092

485

0.001

.0032

481

0.053

.003

.0008

.066

.001

.0035

.0090

487

0.001

.0018

.007

.0039

482

0.013

.0011

.083

.0028

.0059

.0048

488

0.001

.0057

.027

483

0.05

.04

.012

.00096

.072

.001

.0054

.020

489

0.0036

.0096

.046

.002

.0002
ANALYSES OF SAMPLES 89

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued Washington Continued

459-461. Whatcom County. Early Late Devonian part of Chilliwack Group. NE| 

sec. 28, T. 40 N., R. 5 E., 1.25 miles northwest of town of Kendall. 

Permanente Cement Co., Balfour quarries. Analyst, C. S. Homi. (Moen, 

1962, p. 4. 8, 94-96, JH3, pi. 1; Danner, 1966, p. 16, 19, 82, 209, 

210, 225, 226, 229, 453, 466.) Limestone, medium- to dark-gray, 

finely to coarsely crystalline, massive to well-bedded, fossiliferous. Thick 

overburden. Chip sample. Index and geologic maps, geologic sections. 

Former use: Cement. Possible use: None, deposit small.

459. Sample W 16-2 taken across 80 ft.

460. Sample W 16-5 taken across 275 ft.

461. Sample W 16-6 taken across 225 ft.

462. Whatcom County. Early Late Devonian part of Chilliwack Group. North

part sec. 28, T. 40 N., R. 5 E., east side of Sumas Monntain. Permanente Cement Co., Balfour deposits. Analyst, A. A. Hammer. Sample 

121. ( Shedd, 1913, p. 209, 212, 213, 247. pi. 21; Danner, 1966, 

p. 82, 209, 210, 225, 226, 229.) Limestone, medium-gray, coarsegrained. Composite sample taken across 50 ft. Index and geologic maps. 

Possible use: None, deposit small.

463. Whatcom County. Late Devonian part of Chilliwack Group. Center sec. 5, 

or NW^NEi sec. 8, T. 40 N., R. 6 E. Northwest Black Mountain deposit. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample W 21-1. ( Danner, 1966. p. 16, 19, 82, 209, 210, 

243, 244, 453, 466.) Limestone, light-gray, fossiliferous. Thin-section 

description. Chip sample taken across 40 ft. Index and geologic maps.

464-466. Whatcom County. Early Pennsylvanian part of Chilliwack Group. [T. 37 N., 

R. 7 E.. unsurveyed.] Ridley Creek deposit. ( Danner, 1966, p. 82, 

209, 257-259.) Limestone, fossiliferous. Index and geologic maps. 

Possible use: Cement.

464. Eric claim.

465. Gussy claim.

466. Carla claim.

467,468. Whatcom County. Early Pennsylvanian part of Chilliwack Group. NWiNWi 

sec. 13, T. 40 N., R. 5 E., Red Mountain. Analyst, C. S. Homi. 

( Moen, 1962, p. 4, 8, 88, 96, 99, 119, pi. 1.) General: Limestone, 

light-gray, crystalline, well-bedded, fossiliferous. Index and geologic 

maps, geologic sections. Possible use: Concrete aggregate, road metal, 

riprap.

467. Spectrochemical analyst, C. E. Harvey. Sample W 6-3. ( Danner, 

1966, p. 16, 19, 82, 210, 220, 221, 452. 465.) Thin-section 

description. Chip sample taken across 170 ft. Tonnage estimated. 

Possible use: Ballast, cement.

468. Collector, W. R. Danner. Sample W6-4. Moderate to large 

tonnage.

469. Whatcom County. Early Pennsylvanian part of Chilliwack Group. SW 4 

sec. 12, T. 40 N., R. 5 E. Red Mountain deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample W 6-4. ( Danner, 1966, p. 16, 19, 82, 210, 220, 221, 452, 

465.) Limestone-, varies from dense and argillaceous to cherty, silty 

and coarsely crinoidal. Thin-section description. Chip sample taken 

across 140 ft. Tonnage estimated. Index and geologic maps. Possible 

use: Cement.

470-477. Whatcom County. Early Pennsylvanian part of Chilliwack Group. NElSWl, 

NW^SEi. NE i sec. 14, T. 40 N., R. 5 E., about 3 miles northeast of 

town of Kendall. Permanente Cement Co., upper quarry. (Danner, 1966, 

p. 82, 209, 210, 213, 215, 218. 219.) Limestone, fossiliferous. Index 

and geologic maps. Former use: Hydrated lime. Use: Cement. 

470-475. Analyst, E. J. Baldwin.

476, 477. ( Hodge, 1938d, p. 13, 26, 28-30, 33, 36, 38, 39.) Limestone, light-gray, finely crystalline. Possible use: Flux.

478-481. Whatcom County. Early Pennsylvanian part of Chilliwack Group. SW 4 SW 4 

sec. 14, NW 4 NW 4 sec. 23, T. 40 N., R. 5 E., about 3 miles northeast 

of Kendall. Permanente Cement Co., lower quarry, abandoned. Analyst,

C. S. Homi; spectrochemical analyst, C. E. Harvey. ( Moen, 1962, 

p. 4, 8. 88-91, j)9, 119, pi. 1; Danner, 1966, p. 16, 19, 82, 209, 

210, 213, 214, 216, 218. 219, 453, 467.) Limestone, gray, dense to 

crystalline, fossiliferous. Chip sample. Index and geologic maps, 

geologic sections. Former use: Hydrated lime. Possible use: Concrete 

aggregate, ballast, road metal, riprap.

478. Sample W 24-1 taken across 110ft.

479. Sample W 24-2 taken across 320 ft.

480. Sample W 24-3 taken across 200 ft.

481. Sample W 24-4 taken across 300 ft.

482. County, age, formation, analysts, maps, and use as in samples 478-481. 

SEjNEi sec. 21, T. 40 N., R. 5 E. Snmas Mountain deposit. Sample 

W 17-2. (Moen, 1962, p. 4, 8, 16, 95, 97, 100. 119, pi. 1; Dannei, 

1966, p. 16, 19, 82, 209, 210, 231-233, 453. 466.) Limestone, 

mottled buff and white, mostly crystalline, fossiliferous. Chip sample 

taken across 30 ft. Geologic sections.

483, 484. Whatcom County. Probably Early Pennsylvanian part of Chilliwack Group. 

Sec. 4, T. 40 N., R. 6 E., north of town of Maple Falls. Black Mountain deposits. Spectrochemical analyst, C. E. Harvey. (Danner, 1966, 

p. 16, 19, 82, 209, 210, 249-252, 254. 255, 453, 465.) Chip sample. 

Tonnage estimated. Index and geologic maps, geologic sections. Possible use: Cement.

483. SW$NEi sec. 4. Analyst, C. S. Homi. Sample W 7-2. (Moen,

1962, p. 4, 8, 16, 18, 92, 96-98, 100. 119, pi. 1.) Limestone, 

light-gray, dense, fossiliferous. Sample taken across 500 ft. 

Possible use: Concrete aggregate, ballast, road metal, riprap.

484. SEisWi sec. 4. Analyst, under supervision of Mark Adams. Sample 

W 7-7. Limestone, gray, dense. Sample taken across 200 ft.

485. Whatcom County. Early Pennsylvanian part of Chilliwack Group. SWi

sec. 7, T. 40 N., R. 6 E., 2.5 miles north of Maple Falls. Silver Lake 

quarry. Analyst, C. S. Homi. Sample W 1-1. ( Moen, 1962, p. 4, 8, 

87-89, 98, 119, pi. 1; Danner, 1966, p. 16, 19, 82, 209, 210, 221- 

223, 452, 465.) General: Limestone, gray to brownish-gray, medium 

to coarsely crystalline; weathers buff; maximum thickness about 400 ft. 

Thin-section description. Chip sample taken across 280 ft. Tonnage 

estimated. Index and geologic maps, geologic sections. Use: Pulp 

and paper industry. Possible use: Concrete aggregate, ballast, road 

metal, riprap.

486. Whatcom County. Early Pennsylvanian to Early Permian part of Chilliwack 

Group. SWi sec. 4, T. 40 N., R. 6 E., Black Mountain. Analyst, 

C. S. Homi; collector, W. R. Danner. Sample W 7-7. ( Moen. 1962, 

p. 4, 8, 16, 18. 92, 96-98, 100. 119, pi. 1.) General: Limestone, 

gray, dense to crystalline, fossiliferons. Moderate to large tonnage. 

Index and geologic maps, geologic sections. Possible use: Concrete 

aggregate, ballast^ road metal, riprap.

487. Whatcom County. Holocene. NWiSW| sec. 7, T. 40 N., R. 6E., about 

3.5 miles north of Maple Falls. Silver Lake deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample W 10-2. ( Danner, 1966, p. 16, 19, 82, 438. 439. 453. 465.) 

Tufa, creamy-white; composite sample. Index and geologic map. Possible use: None, deposit small and impure.

488. County, locality, and analysts as in sample 487. Sample W 3-1. ( Danner, 

1966, p. 16, 19, 82, 210, 223, 224, 225, 452. 465.) Limestone, dense, 

fossiliferous; weathers dark gray to brownish gray. Thin-section description. Chip sample, composite. Index and geologic maps. Possible use: 

Cement.

489. Whatcom County. SWi sec. 34, T. 41 N., R. 5 E. Vedder Mountain 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample W 22-1. ( Danner, 1966, p. 16, 19, 

82, 210, 246, 453, 466.) Limestone, float, light- bluish-gray, 

finely crystalline. Index and geologic maps. Possible use: None, rock 

impure.

Foou.--~s of analyses on preceding page:

.

"sample dried at 1 K(°- 1 12°C; ignition loss 1.0UO°-1.100°C. 

9 A composite of samples 467, 469, this group, and samples 1879-1881, group FJ 

contained NajO = 235 ppm. KjO=540 ppm, TiOj = 250 ppm, S=220 ppm.

5 With sample 1905, group F,; NajO = 290 ppm. KjO = 530 ppm, TiOt = 130 ppm, 

S = 530 ppm.
90 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing mote than 90 percent carbonate (Group F.).common-rock category

[ Chemical analyses arranged by quadrangle and stratigraphic position] 

Chemical analyses

1 2

50F,5-18

SiO, _____________

A1,OS ____________

Fe,Os ____________

MgQ ______________

CaO ______________

Total ________

Class ___

CaO/MgO __________

______ 1.47

______ .68

______ .16

______ -.1

______ 54.7

______ 43.0

______ [100.1]

______ 0.2,97

______ Calcite

2.16

.55 

.08 

52.9 

42.3

[98.0]

3 4

50F.5-17

0.65 1.89

.33 ______

.15 .62 

-.1 .11 

55.5 54.6 

43.7 42.8

[100.4] [100.0] 

0.1.99 ______

Calcite _____ ,

Alaska

5 6

50F-5-14

0.38

.17 

-.1 

55.7 

43.7

[100.3] 

0.1.99

Calcite

0.64

1.01 

.16 

54.9 

43.7

[100.4]

7 8

50F.5-13

0.39 

.38

.10 

-.1 

55.5 

43.8

[100.3] 

0.1.99

0.57

.53 

.17 

55.5 

42.1

[98.9]

9 10

50F.5-16

0.40 

.36 

.06 

-.1 

55.9 

43.6

[100.4] 

0.1,99

Calcite

1.17

.62 

.13 

55.1 

43.1

[100.1]

11 12

50F.5-15

0.40 

.42

.08 

-.1 

55.7 

43.6

[100.3] 

0,1,99

Calcite

0.81

.47 

.25 

55.1 

43.4

[100.0]

Alaska Continued

SiOj _____________

Al,Oj ____________

Fe,0s ____________

MgQ ______________

CaO ______________

Na-O _____________

K,0 ______________

HjO+ ____________

HjO- ____________

TiOj _____________

MnQ. ____ _ ____

CO, _____________

S

Total ________

Class _____________

CaO/MgO __________

13

50F.5-2

______ 0.40

V .40

______ .14

______ 54.70

______ S 44.36

______ 100.00

______ 0.2.98

______ Calcite

14

50Fi5-9

3.4 

f .00

1 -» 

.41

50.0 

.22 

.13

*45.6

[100.0] 

3.6.90 

Calcite

15 16

 50F,29-1 50Fj30-12

! 0.58 4.74

4.11 2.93 

47.98 48.70

_____ 41.21

[52.67] 97.58

(1.0)94 5.0.93

Magnesian Magnesian 

calcite calcite

17 18

50F-36-13

0.61 

.30

'.48

8.10 

46.45 

Absent 

Absent

.16

.06

Trace 

Absent

.03

44.07

7 100. 32

0,1.97

Magnesian 

calcite

'1.84

'7.47 

'46.36

*44.54

[100.21]

19

50F.36-24

Trace 

Trace 

0.002 

Trace 

'54.9

.002

*43.1

[98.0] 

0.0,98 

Calcite

20

50F.36-25

0.3

.02

'55.7

.008

'43.8

99.8 

0,0.100 

Calcite

21

50F-36-2

0.66 

.11 

.09 

2.57 

51.5

.013

*43.33 

.011

98.3

0.1,97

Magnesian 

calcite

22

50F.36-3

'3.45 

.35 

.16 

.91 

52.3

.012

*42.03 

.094

99.3 

(3.1)95 

Calcite

23

50F,36-1

*0.37 

[ None

.30 

55.52

4 43.93

100.12 

(0,0)100 

Calcite

24

50F.36-21

'0.20

'7.14

'45.88

*43. 81

[97.03]

(0,0)97

Magnesian 

calcite

Alaska Confirmed

SiO, ___

A1.0, ____________

Fe-0, ____________

CaO ______________

PjOj _____________

CO, _____________

S ________________

Total ________

Class _____________

CaO/MgO __________

25

50F,36-20

______ 0.01

______ '.45

______ '55.79

______ *44.21

______ 100.46

______ (0.0)100

26

50F,36-5

0.12

\ None

'.48 

'55.46

*44.06

100.12 

0,0.100 

Calcite

27 28

50F,36-22 50F»36-23

'2.95 '3.50

'.96 '.67 

'53.42 *53.76

'43.01 '42.96

[100.34] [100.89] 

(3.0)97 (3.0)97 

Calcite Calcite

29

50F»36-11

0.62 

f .38 

1 .12 

.54 

54.1 

.005 

*43. 09 

.033

[98.9] 

(0.1)98 

Calcite

30

50F»36-6

1.90 

.26 

.12 

.9 

53.8 

.033 

'43.3 

.037

[100.4] 

(1,1)98 

Calcite

31

50F»36-10

0.99 

.08 

.13 

.68 

54.7 

.020 

*43.6 

.028

[100.2] 

(1,0)99 

Calcite

32

50F»36-8

1.23 

.19 

.13 

.66 

54.0 

.028 

'43.1 

.010

[99.3] 

(1.1)98 

Calcite

33

50F|36-9

2.20 

.05 

.09 

.84 

53.7 

.019 

'43.06 

.014

[100.0] 

(2,0)98 

Calcite

34

50F,36-7

0.83 

.07 

.09 

1.08 

53.8 

.005 

'43.38 

.009

[99.3] 

(1,0)98 

Calcite

35

50Ft36-16

1.09 

1 ».42

.69 

53.87

*43.04

[99.11] 

(0,1)98 

Calcite

36

50F|36-12

1.22

.97

».49 

54.95

42.37

[100.00] 

0.2.96 

Calcite

'Reported as insoluble.

2 Toraliron.

'Calculated from reported MgCOj 

and (or) CaCOj.

4Reported as calculated.

6 Reported as undetermined--carbon dioxide and 

water.

' Includes ignition loss due to oxidation of FeO. 

7 BaO and SrO reported as- absent. 

'Reported as insoluble (HC1) . 

'Combined iron and aluminum oxides. 

'Reported as 0.40 percent 

(Hodge. 1935a, p. 108).
ANALYSES OF SAMPLES 91

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Alaska Continued

1-12. Anchorage quadrangle. [Probably Early Jurassic. About 12.4-12.7, 16.7- 

17.0], on north side of East Fork. (Jasper and Mihelich, 1961, p. 40, 42, 

47, 48.) Limestone, chip sample; extensive deposits. Index map. Possible 

use: Cement. Samples 1, 3, 5, 7, 9, 11, analyses made at U.S. Bureau 

of Mines, Seattle; samples 2, 4, 6, 8, 10, 12, analyses made at Anchorage 

Division of Mines and Minerals Assay Office by Mitchell.

1,2. Probably Jurassic. Field sample 313. ( Plafker and Berg, 1964,

p. 136-238.) Limestone, light-blue-gray, mottled, fine-grained;

also white coarsely crystalline limestone; as much as 200 ft

thick.

Field sample Field sample 

3, 4. 314 9, 10. 317 

5, 6. 315 11, 12. 318 

7, 8. 316

13. Anchorage quadrangle. Cretaceous. [Probably sec. 10, T. 11 N. ( R. 3 W., 

unsurveyed], 0.5 mile northeast of railroad, near town of Potter. Analyst, 

M. L. Sharp. Sample 1. ( Waring, 1947, p. 4, 5, 8; Moxham and 

Eckhart. 1952, p. 18.) Limestone, about 20 ft thick. Index map. Former 

use: Lime. Possible use: Cement.

14. Anchorage quadrangle. [Holocene. Sec. 12, T. 17 N., R. 1 W.],Knik Aim 

area, adjacent to Wasilla Lake. Edlund deposit. Analysts, E. A. Nygaard 

and S. M. Berthold. Sample 2, auger hole 1-GS. ( Moxham and Eckhart, 

1956, p. 3, 6, 8, 13, _14, 15, 18, 19, pi. 1.) Mail; mostly light gray to 

cream colored when wet; white when dried; fine grained; uniform in composition; 21 ft thick near center of deposit; sample at 15 ft depth. Tonnage 

estimated. Index and geologic maps, isopach map, geologic section, 

columnar sections. Possible use: Portland cement. [For analyses from 

same drill hole, see sample 1, group C; sample 2, group Fj.]

15. Probably Chandler Lake quadrangle. [Early and Late Mississippian,

Pennsylvania^?) and Permian], Usburne [Group]. [2.7-6.9, 6.2-17.6], 

Chandler Lake. Sample 45A Gr3. ( Gryc, 1948, p. 1. 2.) Limestone, 

buff to gray, coarsely crystalline, fossiliferous.

16. Charley River quadrangle. [Precambrian], Tindlr Group. [About 20.8, 0.4], 

along Tatonduk River in bluff just above mouth of Thicket Creek. Record 

D-31. (Mertie, 1933, p. 350, 369, 371. pi. 7; Wells, 1937, p. 46.) 

Limestone, cream-colored, massive, porous; 2-18 in. thick. Index and 

geologic maps.

17. Cralg quadrangle. [Pre-Ordovician to Devonian], Wales Group. [About

18.75, 4.6], west side of Prince of Wales Island, Hetta Inlet. Jumbo mine. 

Analyst, George Steiger. Record 2441. ( Clarke, 1915. p. 247; W right, 

1915, p. ^0, 56, 106, pis. 2, 5; Kennedy, 1953, p. 2, 3, 5, 6_, pis. 1, 

6, 7.) General: Limestone, blue to black, finely crystalline; possibly 

1,000 ft thick. Index and geologic maps, geologic sections.

18. Craig quadrangle. Copper Mountain region, near Jumbo mine. Analyst, 

George Steiger. Sample 20. ( Buddington, 1926, p. 61.) Magnetian 

limestone. [Probably same analysis as No. 17.]

19, 20. Cralg quadrangle. Probably Silurian. [T. 68 S., R. 76 E.], Kosciusko 

Island, Edna Bay. ( Libbey, 1957, p. 7, 17, IB.) Limestone, largely 

recrystallized. Representative analyses. Index map. Possible use: Calcium 

carbide manufacture. General use: [Agricultural, chemical, portland 

cement ].

21, 22. Cralg quadrangle. Silurian. Analyst, Nils Johansson. ( Roehm, 1946,

p. 11. 25,_29, 53, 56-58. 60. 61.) Chip samples from outcrop. Mineralogy, thin-section description. Bulk density 2.70. Tonnage estimated. 

Index maps. Possible use: Agricultural.

21. [8.8, 14.3], northwest end of Heceta Island, Port Alice. Sample and 

deposit 14. Limerock, light-gray to buff, dense, semicryjtalline, 

fossiliferous; contains dark streaks. Thickness 600 ft; little overburden.

22. [About 9.8, 14-14.2], along central north shore of Heceta Island.

Sample and deposit 15. Limerock, dark-bluish-gray, semicrystalline; 

weathers dark gray. Estimated thickness 300 ft; little overburden.

23. Craig quadrangle. Silurian. [9.9-10.1, 10.1-13.85], north side of Heceta 

Island. Ketchikan district. Analyst, J. G. Fairchild. Record C-630. 

(Buddington, 1926, p. 61; Wells, 1937, p. 47.) Limestone.

24,25. Craig quadrangle. Silurian. [Abont 10.2, 17.5], northwest part of Marble 

Island, east of town of Tokeen. Vermont Marble Co. Analyst, 

R. K. Bailey. Record 2952. (Burchard, 1920. p. 67-69, pis. 1-3, 6; 

Buddington, 1926. p. 61; Wells, 1937, p. 47.) Marble; general description 

and thin-section description of Tokeen marble. Index and geologic map*.

24. [Limestone], veined. Photomicrograph. Use: Interior decoration.

25. [Limestone], white.

26. Craig quadrangle. Silurian. [10.4-10.6, 15.9-16.4], southwest end of Orr

Island, Ketchikan district. Analyst, J. G. Fairchild. Record C-630.

(Buddington. 1926, p. 61; Wells, 1937. p. 47.) Limestone.

27,28. Craig quadrangle. Silurian. [10.6-10.65, 16.85-16.9], Orr Island. MissionAlaska Quarry Co. quarry. Analyst, R. K. Bailey. Record 2952. 

( Burchard. 1920, p. 33, 74, J75, pis. 1, 3, 15; Buddington, 1926, p. 61; 

Wells, 1937, p. 47.) Thin-section description. Index and geologic maps. 

Use: Interior decoration [implied].

27. [Limestone], marble, mottled.

28. [Limestone], marble, dark-veined. Photomicrograph.

29-34. Craig quadrangle. Silurian. Dall Island. Analyst, NilsJohannson. (Roehm, 

1946, p. 11, 25, 28, 30, 40-51.) Mineralogy, thin-section description. 

Chip samples from outcrop. Little overburden. Tonnage estimated. Index 

maps.

29. [14.1-14.9, 1.6-1.85], north shore of View Cove. Superior

Portland Cement Co. quarry. Sample and deposit 8. Limerock, 

dark shades and shades of light-bluish-gray, fine-grained; 

bedded in part. Deposit 2,000 ft thick. Average bulk density 

2.68. Use: Portland cement. Possible use: Agricultural, 

water treatment.

30. Silurian( Plafker and Berg, 1964, p. 136, 137). [14.3, 1.0], 

Coco Harbor. Sample and deposit 7. Limestone, chalkywhite to light-gray, extremely fine grained, dense, occasional 

fine brownish streaks; weathers buff. Deposit 200 ft thick; 

sample 150 ft thick. Bulk density 2.68. Possible use: Agricultural, cement, metallurgical.

31-33. [14.3, 1.2-1.3], month of Green Bay, View Cove. Limerock, 

more than 1,500 ft thick. Possible use: Agricultural, cement.

31. Sample and deposit 9. Limerock, nearly black, thinly 

laminated, fissile. Bulk density 2.66. Additional 

possible use: Water treatment.

32. Sample and deposit 11. Limerock, dark-bluish-gray,

thinly laminated, fissile, slightly friable; weathers light 

gray. Bulk density 2.70.

33. Sample and deposit 10. Limerock. dark-gray to bluish-gray, 

fissile, slightly friable; weathers light gray. Bulk 

density 2.70.

34. [14.3, 2.6], South Bay of Breezy Bay. Sample and deposit 12. 

Limerock, light-bluish-buff-gray, very fine grained, slightly 

friable; weathers light buff. Deposit 900 ft thick. Bulk density 

2.66. Possible use: Agricultural, cement, metallurgical, 

water treatment.

35. Craig quadrangle. Silurian. [About 14.9, 1.6], Dall Island, View Cove. 

Pacific Coast Cement Co. property. ( S. E. Hntton, written communication, 1928, cited in Buddington and Chapin, 1929, p. 391.) Limestone; 

average of large number of samples in district. Use: Cement.

36. Craig quadrangle. Silurian. [About 14.9, 1.6] , Dall Island, between 

Baldy Bay and Tlevak Strait. Superior Portland Cement, Inc. quarry. 

( Hodge, 1935a, p. 107, 108, pi. 25; Hodge, 1935c, app. L-l. p. 41.) 

Limestone, very uniform; typical analysis. Tonnage estimated. Use: 

Cement. Possible use: Flux.
92 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group F,), common-rock category Continued

Chemical analyses Continued

A laska C ontinued

SiO, _________

Ai.n.

MgQ_ _________

CaO __________

CO, _

SO, _________

Total ____

Class _________

CaO/MgO _____ .

37

50F.36-15

ft 44

__________ .14

__________ .06

__________ .58

__________ 54.6

840 Art

___________ [99.3]

 _ (0,1)99

_________ Calcite

38

50F.36-27

3.9

.7 

'53

'42

[101] 

0,2,95 

Calcite

39 40

50F,36-26 50F.36-28

*0.26 1 7.82

.14 ______

.47 '.58 

55.80 '51.37

43.86 *40.96

*[100.53] [100.73] 

(0,0)100 (8,0)93 

Calcite Calcite

41

50F,40-6

*0.32

'.49 

*55.79

*44.34

[100.94] 

(0,0)100 

Calcite

42

50F,40-3

0.41 

.33 

.15 

2.95 

51.3 

.010 

*43.6

.37

[99.1]

(0.1)98

Magnesian 

calcite

43

50F,40-1

0.27 

.08 

.05 

1.24 

54.4 

.004 

S 43.8

.017

[99.9] 

(0.0)99 

Calcite

44

50F,40-2

0.44 

.13 

.12 

4.6 

50.2 

.002 

*39.5

.024

[95.0]

(0.1)88

Magnesian 

calcite

45

50F,40-4

0.94 

.23 

.11 

1.17 

53.8 

-.001 

*43.5

.031

[99.8] 

(0,1)98 

Calcite

46

50F,40-5

0.20 

.08 

.06 

.48 

54.8 

.002 

*43.5

.011

[99.1] 

(0.0)99 

Calcite

47

50F.42-5 

 OB 

[ .50

19.88 

31.20

§ 53.64 

1.1.97 

Dolomite

48

50F,42-1

1.1

.7 

53.6

42.4

99.9 

0,3,96 

Calcite

Alaska Continued

SiO, _________

Al,0, ________

MgQ __________

CaO __________

Na,O _________

K.O

P.O. _________

SO, _________

Total ____

Class _________

CaO/MgO ______

49 50

50F,52-2 50F,52-4

__ 4.1 5.9

__ 1.15 1.6

__ .43 .58

__ .35 .25

__ 51.4 49.8

<.01 <.01

__ [57.4] [58.2]

__ 2.4.92 2,6.89

__ Calcite Calcite

51

50F,52-3

5.4 

1.6 

.51 

.65 

50.3

[58.5] 

2,6,91 

Calcite

52 53

50F.52-1 50F.52-22

4.0 3.5 

1.3 2.3 

.50 .78 

.4 2.9 

51.4 47.9 

<.01 .30 

<.01 .12 

_____ .01

.32

_____ 42.4

[57.6] 100.5

1,5.93 0,7.92

_ , . Magnesian Calcite *" . calcite

54

50F.52-23

2.1 

.80 

.32 

1.4 

53.0 

.50 

.13 

.01 

.24 

42.6

101.1 

0,3.96 

Calcite

55

50F.52-25

6.2 

.95 

.40 

1.0 

50.0 

.38 

.13 

.02 

.41 

40.6

100.1 

4,4,91 

Calcite

56

50F.52-26

5.4 

1.1 

.46 

1.8 

50.3 

.62 

.19 

.01 

.35 

40.4

100.6 

3,4.90 

Calcite

57

50F,52-27

6.0 

.64 

.45 

1.3 

50.1 

.37 

.19 

.02 

.51 

40.4

100.0 

4,3,91 

Calcite

58

50F,52-20

6.6 

1.1 

.41 

1.9 

50.1 

.59 

.20 

.00 

.61 

39.6

101.1

4.4.88

Magnesian 

calcite

59

50F,52-39

3.2 

.31 

.34 

.83 

53.1 

.21 

.07 

.01 

.19 

41.9

100.2 

2.2.95 

Calcite

60

50F.52-41

5.2

.80 

.78 

8.0 

43.4 

.33 

.08 

.01 

.11 

41.8

100.5

3,4,91

Magnesian 

calcite

61

50F.52-42

5.9 

1.0 

.64 

2.1 

48.4 

.18 

.09 

.02 

.16 

40.5

99.0

3,5.90

Magnesian 

calcite

Alaska Continued

SiO, _________

ff.Cl.

MgQ. _________

CaO __________

Na,0 _________

K.O

PjO, 

SO, _ ___

Total ____

Class _________

CaO/MgO ______

62 63

50F,52-28 50F.52-29

__ 3.9 2.7

__ .59 .29

__ .19 .19

__ 2.0 .77

__ 50.7 53.1

, __ .23 .20

, __ .15 .11

, __ .01 .01

, __ .18 .08

__ 42.1 42.6

. __ 100.0 100.0

, __ 3.2.95 2,1,96

Magnesian

calcite

64

50F.52-30

2.2 

.00 

.18 

.76 

53.7 

.20 

.10 

.01 

.12 

42.8

100.1 

2.0,97 

Calcite

65 66

50F.52-31 50F.52-32

2.2 3.0 

.21 .83 

.30 .30 

.51 .75 

53.6 52.8 

.20 .24 

.08 .08 

.01 .01 

.08 .09 

42.5 42.4

99.7 100.5 

1.1,96 1,3,95 

Calcite Calcite

67

50F,52-33

5.9 

.69 

.40 

1.6 

50.3 

.37 

.11 

.01 

.33 

40.7

100.4 

4.3.91 

Calcite

68

50F.52-34

4.3 

1.9 

.27 

1.1 

50.7 

.32 

.10 

.01 

.30 

42.6

101.6 

1.7,92 

Calcite

69

50F.52-35

4.2 

1.4 

.19 

1.2 

51.0 

.28 

.09 

.01 

.12 

42.0

100.5 

1,5,94 

Calcite

70

50F,52-36

4.0 

1.6 

.24 

1.2 

51.0 

.26 

.08 

.01 

.13 

42.1

100.6 

1,6,93 

Calcite

71

50F.52-37

3.8 

.79 

.16 

1.0 

51.8 

.30 

.11 

.01 

.10 

41.8

99.9 

2,3,94 

Calcite

72

50F,52-38

4.9 

1.4 

.11 

.60 

51.4 

.26 

.08 

.01 

.29 

41.3

100.4 

2,4.93 

Calcite

73

50F.52-9

6.5 

.4 

.4 

1.6 

49.6 

.3 

.1 

.1 

.00 

41.0

100.0 

5,2,92 

Calcite

74

50F,52-10

7.7 

.6 

.4 

1.3 

48.8 

.3 

.1 

.1 

.2 

39.6

99.1 

6,3,89 

Calcite

'insoluble in HC1.

1 Reported as probably silica.

'Calculated from reported MgCO, 

and (or) CaCO,.

4 HjS reported as not detected. 

'Total reported as 99.7 percent.
ANALYSES OF SAMPLES 93

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

37. Craig quadrangle. Devonian. [13.5, 9.9], Wadleigh Island. Analyst, 

Nils Johansson. Sample and deposit 13. (Roehm. 1946, p. 11, 25, JJ9, 

52-55.) Limerock, brownish-gray, finely crystalline, massive, dense; 

weathers light gray. Deposit 600 ft thick; little overburden. Mineralogy, 

thin-section description. Bulk density 2.69. Chip sample from outcrop. 

Tonnage estimated. Index maps. Possible use: Chemical.

38. Craig quadrangle. Paleozoic. Either [23.3. 2.65], head of North Arm or 

[24.7, 2.85], north entrance to Johnson Inlet, Prince of Wales Island. 

American Coral Marble Co. ( Wright, 190B, p. 120, 121. pis. 1. 2.) 

[Limestone], marble, white, fine-grained; small amount of pyrite. Index 

and geologic maps.

39,40. Craig quadrangle. Paleozoic. [10.2, 17.5], Marble Island, near town of 

Tokeen. Vermont Marble Co. Thin-section description. Index and 

geologic maps.

39. East of Tokeen. Analysts, G. J. Hough, H. A. Bright. Reference 

No. 50, lab. No. 2632. ( Kessler, 1919, p. 4, 36-^1, 52-54; 

Bur chard, 1920, p. 15, 67-20, pis. 1, 3.) [Limestone] marble, 

white. Physical tests.

40. Locality, 1.5 miles south of Tokeen. Analyst, R. K. Bailey. Record

2952, deposit 34. ( Burchard. 1920, p. 15, 72, J3, pis. 1, 3; Well*. 

1937, p. 47.) [Limestone] marble, green; mineralogy.

41-46. Dixon Entrance quadrangle. Silurian. (Roehm, 1946, p. 11, 25, JJ8, 30-39; 

Plafker and Berg, 1964, p. 136, 137, 139. figs. 8, 20.) Limestone. 

Thin-section description; little overburden; tonnage estimated. Index and 

geologic maps. Samples 42-46: Analyst, Nils Johansson; mineralogy; 

chip samples from outcrop.

41. [9.5-9.6, 16.4-16.7], Dall Island, near Waterfall Bay. Analyst.

R. K. Bailey. Record 2952; sample and deposit 4. (Burchard, 1920. 

p. 78-80, pis. 1, 4, 18; Well*, 1937, p. 47.) Marble, white, 

finely crystalline. Estimated thickness 2,000 ft. Photomicrograph. 

Possible use: Chemical, pulp and paper industry.

42. [9.5-9.6, 16.4-16.7], Dall Island, northeast shore at head of

Waterfall Bay. Sample and deposit 3. Limestone, bluish-white, 

mottled, semicrystalline; weathers dull bluish gray. Estimated 

thickness 2,000 ft. Bulk density 2.60. Possible use: Agricultural.

43. [9.5-9.6, 16.4-16.7], Dall Island, southeast shore at head of

Waterfall Bay. Sample and deposit 1. Limerock, dark-bluish-gray, 

massive, dense, finely crystalline; weathers dull bluish gray; contains 

few white calcite spots. Estimated thickness 2,000 ft. Bulk density 

2.70. Possible use: Agricultural, cement, metallurgical, structural 

products, water treatment.

44. [9.55, 16.5], Dall Island, east shore at head of Waterfall Bay. Sample 

and deposit 2. Limestone, light-gray to nearly white, mottled, very 

fine grained; weathers light buff. Estimated thickness 2,000 ft. Bulk 

density 2.68. Possible use: Agricultural, lime.

45. [12.4-12.6, 16.1-16.3]. north end of Long Island, hill due west of 

Cleva Bay. Sample and deposit 5. Limestone, dark-bluish-gray, 

dense, massive, finely crystalline; weathers to light bluish dull gray. 

Bulk density 2.70. Possible use: Agricultural, metallurgical.

46. [12.4-12.6, 16.1-16.3], north end of Long Island, west shore of

Cleva Bay. Sample and deposit 6. Limestone, light-bluish-gray to

Alaska Continued

nearly white, mottled crystalline luster, bedded. Bulk density 2.70. 

Possible use: Agricultural, pulp and paper industry.

47, 48. Fairbanks quadrangle. [Precambrian or early Paleozoic] , Birch Creek Schist. 

Analyst, M. L. Sharp. (Waring, 1947, p. 4, 6, S. 9.) Index map.

47. [Sec. 31, T. 2 N., R. 1 E., about 8 miles north-northeast of town 

of Fairbanks.] Lab. No. 9. General description: [Dolomite], 

white, fine-grained. Maximum thickness 15 ft. Possible use: 

Building stone, monumental stone.

48. [Sec. 13 or 14, T. 4 S., R. 8 W.], Nenana depot, railroad cut. 

Lab. No. 8. Limestone, blue-gray; 1-4 ft thick.

49-52. Healy quadrangle. Middle Devonian. [5.B-6.7, 7.8-8.0], headwaters of

West Fork of Windy Creek. Analyst, H. E. Petenon. ( Rutledge and others, 

1953, p. 2, 4. 117, 11B. 123, figs. 1, 3, 41, 42.) Limestone, gray, 

recrystallized. Index and geologic maps. Possible use: Portland cement, 

rock wool.

49. Sample 163. Sample from talus slope, represents entire width of 

outcrop.

50. Sample 165.

51. Sample 166.

52. Sample 167.

53-74. Healy quadrangle. Devonian^?). [5.8-6.7, 7.8-8.0], headwaters of West 

Fork of Windy Creek. Analysts, Leonard Shapiro, L. E. Reichen, 

S. M. Berthold. (Moxham, Eckhart, and Cobb, 1959, p. 69, B8-JU, 

pi. 11.) Limestone, dark- to bluish-gray, fine-grained, very dense, 

massive, locally banded; weathers light gray. Chip samples. Index 

and geologic maps, geologic sections. Possible use: Portland cement.

Lab. No. Lab. No.

53.

54.

55.

56.

57.

5B.

59.

60.

61.

62.

63.

501921 C

1922 C

1924 C

1925 C

1926 C

1928 C

1929 C

i ISraJ. oai r*V_»

1932 C

1933 C

1934 C

492

493

495

496

497

499

501

503

504

541

542

64.

65.

66.

67.

68.

69.

70.

71.

72.

73.

74.

1935 C

1936 C

1937 C

193B C

1939 C

1940 C

1941 C

1942 C

1943 C

543

544

545

546

547

548

549

5410

5411

561

562

487-187 O - 73 - 7
94 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group F,), common-rock category «-<:ontinued

SiO, _________

Al,0, ________

Fe,0, ________

MgQ. _________

CaO __________

NajO _________

if _r\

P£>t _________

CO, _________

SO, _ _

NaCl-rtCCl ______

Total ____

Class _________

CaO/MgQ ______

SiO, __ __ .

Al,0, .

Fe.n.

MgO .

CaO____ _____ .

Na,O _______ .

Kf> __________ .

ff» _________ .

CO, 1 _________

SO, __________

NaCl+KCl 2 _____

Total _____

Class _________

CaO/MgO ______

SiO, _ _______

A1,O, ________

Fe,0, ________

MgQ __________

CaO __________

P«0, _________

CO, 1

so, _________

NaCl+KCl* _____

Total ___

Class

CaO/MgO ______

75

50F,52-11

__ 6.1

__ 1.3

.6

__ 1.9

__ 49.0

__ .3

__ .1

__ .4

__ 40.0

__ [99.9]

__ 3,5,89

Magnesian

 calcite

88

50F, 

156-11

___ 2.72

___ 1.38

___ 1.02

___ 1.6

___ 50.8

___ .03

___ 40.8

. __ .74

__ .58

 (41.7)

___ [99.7]

, __ 0.5,92

76

50F,52-12

5.5

.6

.4

2.5

49.5

.3

.1

.2

41.3

[100.5]

4,3,92

Magnesian

calcite

89

50F, 

156-12

2.20

1.47

.73

2.0

50.6

.016

41.8

.30

.41

(42.6)

[99.5]

0,4,94

Magnesian

calcite

101

50F, 

156-29

5.5

3.03

.87

2.3

48.0

.020

39.8

.07

.14

(40.4)

[99.7]

0,9,90

Magnesian

calcite

77

50Fj52-13

4.2

.6

.3

1.1

51.4

.2

.1

.2

41.6

[99.8]

3,3,94

Calcite

90

50F, 

156-13

2.40

.73

1.65

50.6

.018

41.4

.28

.62

(42.6)

[99.3]

0.4.93

102

50F, 

156-30

5.4

3.15

.75

2.5

48.6

.025

40.0

.06

.01

(40.3)

[100.5]

0.9,90

Magnesian

calcite

78

50F,52-14

7.3

.4

.3

49.4

.1

.3

40.0

[99.3]

6.2.90

Calcite

91

50F, 

156-14

.73

2.45

50.2

.025

40.5

.42

.18

(41.3)

[100.6]

0,6.91

Magnesian

calcite

103

50F, 

156-34

4.4

2.3

.60

1.9

49.6

.016

40.8

.03

.01

/41 o\

[99.7]

0,7.92

Magnesian

calcite

Chemical analyses Continued

Alaska Continued

79 80 81

50F,52-15 50F,52-16 50F,52-17

2.4 4.3 2.6

.3 .4 .1

.2 .1 .1

.6 1.3 .4

53.2 52.0 54.2

.2 .2 .1

.1 .1 .1

,1 .1 .1

.1 .00 .00

42.6 42.2 43.1

[99.8] [100.7] [100.8]

2.1.96 3.1,95 2,1,97

Calcite Calcite Calcite

Alaska Continued

92 93 94

50F, 50F, 50F, 

156-15 156-16 156-17

3.50 4.8 5.3

.87 .95 1.02

2.0 1.8 1.7

50.0 48.4 48.3

.023 .02 .025

40.8 40.0 39.4

.48 .50 .54

.14 .40 .90

(41.6) (40.5) (40.2)

L100.1] [99.4] [100.0]

0,6,92 0,8.90 0,9.89

Magnesian ^^ ^^

calcite

Alaska Continued

104 105 106

50F, 50F, 50F, 

156-37 156-39 156-40

5.5 5.4 4.8

3.60 2.15 3.05

.50 .65 .95

1.5 1.4 1.8

49.0 50.4 49.0

.032 .023 .025

39.2 41.1 39.8

.06 .01 .51

.88 1.2 .74

(39.4) (41.2) (40.2)

[100.3] [102.3] [100.7]

0,9.89 1,7,93 0,8,90

Calcite Calcite Calcite

82

50F,52-18

3.4

.5

.2

1.8

51.0

.3

.1

.1

.2

42.1

[99.7]

2.2.95

Calcite

95

50F, 

156-18

5.5

2.98

1.02

1.65

48.0

.03

39.5

.56

1.34

(40.2)

[100.6]

0.9.89

Calcite

107

50F, 

156-41

3.6

2.3

.60

1.7

49.4

.020

39.9

.42

.92

(40.6)

[98.9]

0,6,90

Calcite

83

50F,156-5

1.86

1.15

.58

1.8

51.4

.007

*42.2

.22

'.16

'(42.2)

[99.4]

0.3.95

Calcite

96

50F, 

156-24

5.0

3.05

.95

1.8

49.4

'.32

'.23

.03

41.8

.06

(42.4)

[102.6]

0,8,93

Calcite

108

50F, 

156-42

2.6

1.75

.65

2.9

49.6

.020

41.7

.31

1.2

(41.9)

[100.7]

0.4.94

Magnesian

calcite

84

50F,156-6

1.14

1.0

.58

1.45

52.2

.014

*42.4

.20

2 .10

'(42.8)

[99.1]

0,2,96

Calcite

97

50F, 

156-25

4.7

2.93

.87

1.8

49.5

'.38

'.38

.03

40.3

.07

(40.4)

[101.0]

0.8.91

Calcite

109

50F, 

156-43

3.6

2.50

.60

2.0

49.5

.019

41.4

.36

.46

(41.6)

[100.4]

0.6.93

Magnesian

calcite

85

50F,156-7

1.74

1.0

.58

1.3

52.2

.018

'41.7

.30

'.70

'(42.6)

[99.5]

0.3.94

Calcite

98

50F, 

156-26

3.4

2.57

.73

1.5

51.0

.019

40.9

.05

.24

(41.2)

[100.4]

0,5,92

Calcite

110

50F, 

156-45

4.0

2.05

.95

2.4

48.7

.019

40.2

.75

.56

(40.5)

[99.6]

0,7,90

Magnesian

calcite

86

50F,156-8

1.24

.72

.58

1.4

52.6

.019

!42.1

.32

'.80

'(42.6)

[99.8]

0,2,95

Calcite

99

50F, 

156-27

3.6

2.45

.95

1.7

50.0

.020

40.4

.06

.36

(40.8)

[99.5]

0,6,91

Calcite

111

50F, 

156-46

5.2

3.0

.80

2.9

48.1

.026

39.6

.45

.20

(39.8)

[100.3]

0.8,89

Magnesian

calcite

87

50F,156-9

3.26

1.0

.58

1.65

52.4

.03

'41.7

.26

'.52

'(42.7)

[101.4]

1.4.94

Calcite

100

50F, 

156-28

4.6

3.03

.87

2.2

48.5

.020

40.6

.07

.62

(40.6)

[100.5]

0.7,91

Magnesian

calcite

112

50F, 

156-48

6.0

3.25

.95

1.6

47.6

.027

39.4

.73

.76

(39.9)

[100.3]

0,10.89

Calcite
ANALYSES OF SAMPLES 95

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Fg) common-rock category Continued

Chemical analyses Continued 

Alaska Continued

SiOj ____________

Al,0, 

Fe,0, 

MgO ____________

CaO

P,O, ____________

CO, 1 .............

SO, 

NaCl + KCl* ________

H3

50F, 

156-53

______ 3.5

______ 2.55

______ .85

______ 1.25

______ 48.6

.023

______ 40.6

______ .45

______ .10

 (40.8)

114

50F, 

156-54

3.6

2.35

.85

.85

48.9

.017

40.6

.42

.44

(40.7)

115

50F, 

156-56

3.9

2.95

.85

1.45

48.6

.025

40.4

.53

<.01

(40.7)

116

50F, 

156-57

5.2

2.8

1.0

1.9

49.1

.019

39.6

.68

1.0

(39.8)

117

50F, 

156-59

4.4

4.3

1.1

2.0

46.3

.022

39.8

.64

.80

(39.9)

118

50F, 

156-60

4.6

4.2

1.0

2.3

47.1

.026

40.2

.65

.50

(40.6)

119

50F, 

156-61

5.0

3.7

.9

1.9

47.4

.032

40.2

.76

.62

(40.5)

120

50F, 

156-62

4.9

2.65

.65

1.5

50.0

.028

39.8

.72

.42

(40.1)

121

50F, 

156-63

5.0

2.45

.75

1.8

49.7

.016

40.2

.57

.22

(40.6)

122

50F, 

156-64

5.0

3.05

.85

1.3

48.3

.018

40.2

.35

<.01

(40.6)

123

50Ft 

156-65

2.8

1.77

.43

1.43

51.6

.014

41.8

.11

.62

(42.2)

124

50F, 

156-66

2.8

1.55

.35

.73

51.4

.020

42.0

.06

.30

(42.1)

Total ______________ [97.9] [98.0] 

Class __________________ 0,6.90 0.6.90

CaO/MgO___ ____________ Calcite Calcite °

[98.7] [101.3] [99.4] [100.6] [100.5] [100.7] [100.7] [99.1] [100.6] [99.2]

0.7.90 0.8.89 0.8.88 0.7,90 0.8.90 0.8.90 0.8,91 0.9.90 0,5.94 0.5,94

Calcite Magnesian Magnesian Magnesian

calcite calcite calcite calcite

1 400°-1,OOO^C. direct combustion . 

1 Gravimetric determination. 

'Not included in total.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued Alaska Continued

75-82. Healy quadrangle. Devonian!?). [5.8- 6.7, 7.8-8.0], headwaters of 

West Fork of Windy Creek. Analysts, Leonard Shapiro, L. E. Reichen, 

S. M. Berthold. ( Moxham, Eckhart. and Cobb, 1959. p. 69, 88-91. 

pi. 11.) Limestone, dark- to bluish-gray, fine-grained, very dense, 

massive, locally banded; weathers light gray. Chip samples. Index 

and geologic maps, geologic sections. Possible use: Portland cement.

75.

76.

77.

78.

79.

80.

81.

82.

Lab. No.

1944 C

1945 C

1946 C

1947 C

1948 C

1949 C

1950 C

1951 C

97.

98.

99.

100.

101.

102.

103.

104.

105.

106.

107.

108.

109.

524

526

527

528

529

530

531

535

538

540

541

542

543

544

83-124. Healy quadrangle. Middle Devonian. [5.8-6.7. 7.8-8.0], headwaters of 

West Fork of Windy Creek, Foggy Pass. Deposit description: Limestone, 

dark-gray to blue-gray, fine-grained, dense, recrystallized; contains 

abundant calcite veinlets. Estimated thickness 3,100 ft. Index and 

geologic maps. Possible use: Portland cement, mineral wool.

83-109. ( Warfield, 1962, p. 3, 12, 13, 15-_18.) Representative 

samples from channel 50 ft long.

110-122. (Warfield. 1962, p. 3, 12, 13, 15-17, J19.) Representative 

samples from channel 50 ft long.

83.

84.

85.

86.

87.

88.

89.

90.

91.

92.

93.

94.

95.

505

506

507

508

509

511

512

513

514

515

516

517

518

110.

111.

112.

113.

114.

115.

116.

117.

118.

119.

120.

121.

122.

546

547

550

555

556

559

560

562

563

564

565

569

570

123, 124. ( Warfield, 1962, p. 3, 12, 13, 15-17. W.) Representative 

samples from 100 ft of talus. Tonnage estimated.

123.

124.

Sample

571

572
96 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft), common-rock category-continued

Chemical analyses Continued

Alaska Continued

SiO, _______

Al,0, 

Fe.fl.

MgO _______

CaO _______

P,0j _______

CO,' _______

SO, _______

NaCl+KCl * ___

Total _

Class _______

CaO/MgO ____

125

50F, 

156-67

____ 2.4

____ 1.6

____ .50

____ 1.48

____ 50.8

____ .015

____ 41.8

____ .15

____ .82

____ (42.0)

____ [99.6]

____ 0,4,94

____ Calcite

126

50F, 

156-68

3.3 

1.92 

.78 

2.75 

49.7 

.028 

41.6 

.22 

1.0 

(41.8)

[101.3] 

0,5,94

Magnesian 

calcite

127 128 129

50F, 50F, 50F, 

156-69 156-70 156-71

2.4 3.3 2.8 

1.85 2.2 2.77 

.35 .50 .43 

1.05 1.23 1.23 

51.0 50.0 49.5 

.023 .025 .025 

42.0 41.8 41.4 

.13 .07 .15 

.40 .46 .56 

(42.2) (42.1) (41.8)

[99.2] [99.6] [98.9] 

0,4,94 0.6,93 0,5.92

Calcite Caleite Calcite

130

50F, 

156-72

3.5 

2.5 

.50 

1.60 

49.8 

.023 

41.6 

.21 

.14 

(40.8)

[99.9] 

0,6,93

Calcite

131

50F, 

156-73

2.4 

1.62 

.28 

1.23 

51.4 

.020 

42.6 

.12 

1.1 

(42.8)

[100.8] 

0,4,95

Calcite

132

50F, 

156-74

2.4 

1.77 

.43 

1.43 

51.4 

.023 

42.1 

.08 

1.1 

(42.4)

[100.73 

0,4,95

Calcite

133

50F, 

156-75

4.8 

3.03 

.57 

1.77 

48.8 

.028 

39.9 

.21 

1.1 

(40.1)

[100.23 

0,8,90

Calcite

134

50F, 

156-76

5.1 

2.69 

.71 

1.81 

48.5 

.041 

40.3 

.20 

.40 

(40.4)

[99.8] 

0.8,91

Calcite

135

50F, 

156-77

4.7 

2.9 

.50 

1.45 

48.4 

.039 

37.6 

.22 

.96 

(39.1)

[96.8] 

0,8,85

Calcite

136

50F, 

156-78

3.8 

2.77 

.43 

1.41 

49.6 

.030 

40.6 

.18 

.48 

(40.8)

[99.3] 

0.7.92

Calcite

137

50F, 

156-79

3.2 

2.02 

.28 

1.35 

50.6 

.037 

41.1 

.15 

.06 

(41.4)

[98.8] 

0,6,93

Calcite

Alaska Continued

SiO, _______

Al,0, ______

Fe,0, ______

MgO _______

CaO _______

Pj05 _______

SO, _______

Total _

Class _______

CaO/MgO_ __

138

50F, 

156-80

____ 4.5

____ 2.45

____ .35

____ 1.20

____ 49.2

____ .028

____ .38

____ 1.1

 (40.6)

____ [99.4]

____ 0,8,91

139

50F, 

156-87

4.7 

3.55 

.95 

1.5 

47.4 

.037 

39.2 

.26 

.24 

(39.8)

[97.83 

0,8,88 

Calcite

140 141 142

50F, 50F, 50F, 

156-88 156-89 156-90

4.7 4.7 4.2 

2.97 2.97 3.47 

.73 .73 .73 

1.35 1.9 1.5 

45.8 46.8 48.6 

.028 .025 .023 

40.0 39.8 40.8 

.16 .15 .12 

.44 .50 .54 

(40.4) (40.4) (41.0)

[96.2] [97.6] [100.0] 

0.8,87 0,8.89 0,7.91

Calcite ****** calcite calcite

143

50F, 

156-91

2.8 

2.27 

.73 

1.65 

49.2 

.023 

41.4 

.14 

.40 

(41.6)

[98.6] 

0,5,92 

Calcite

144

50F, 

156-92

3.5 

2.37 

.73 

1.9 

48.0 

.020 

40.8 

.17 

.68 . 

(41.0)

[98.2]

0,6,91

Magnesian 

calcite

145

50F, 

156-93

3.7 

2.47 

.73 

1.9 

46.2 

.020 

41.1 

.07 

.62 

(41.6)

[96.8]

0,7,89

Magnesian 

calcite

146

50F, 

156-94

3.4 

2.67 

.73 

1.9 

48.1 

.018 

40.7 

.09 

.62 

(41.6)

[98.23

0,6,91

Magnesian 

calcite

147

50F, 

156-95

3.9 

3.2 

.80 

1.5 

48.1 

.032 

40.2 

.08 

.26 

(40.8)

[98.1] 

0,7,90 

Calcite

148

50F, 

156-96

3.0 

2.47 

.73 

1.65 

46.9 

.030 

41.3 

.06 

.64 

(41.4)

[96.8] 

0,5,90 

Calcite

149

50F2 

52-46

0.7 

.25 

.15 

.05 

54.9

[56.0] 

0,1.98 

Calcite

150

50F, 

52-45

0.7 

.2 

.18 

.15 

54.4

[55.6] 

0.1.97 

Calcite

Alaska Continued

SiO, _______

Al,0, ______

Fe,0, ______

MgO _______

CaO _______

Na,0 _______

K,O _______

P,0j _______

SO, _______

Total _

Class _______

CaO/MgO ___

151

50F, 

52-43

____ 0.7

____ .3

___ .17

____ .05

____ 55.2

 [56.4]

____ 0,1,99

____ Calcite

152

50F, 

52-44

0.5 

.15 

.14 

.05 

55.2

[56.03 

0,1.99

Calcite

153 154 155

50F, 50F, 50F, 

52-63 52-62 52-61

5.5 1.4 1.7 

.7 .3 .4 

1.38 .20 .28 

.1 .05 1.85 

50.9 55.2 51.8

[58.6] [57.23 [56.0] 

3.5.91 1,1,97 1,2.96

Calcite Calcite Calcite

156

50F, 

52-64

0.7 

.25 

.25 

.05 

55.4

[56.63 

0.1,98

Calcite

157

50F, 

52-48

1.4 

.00 

.2 

3.2 

51.2 

.1 

.1 

.1

43.3

99.6 

1,0,97

Magnesian 

calcite

158

50F, 

52-49

1.5 

.30 

.16 

1.1 

52.8 

.29 

.12 

.00 

.08 

43.3

99.7 

1,2,97

Calcite

159

50F, 

52-50

1.4 

.30 

.30 

.07 

54.1 

.16 

.11 

.02 

.06 

43.5

100.0 

1.2.97

Calcite

160

50F, 

52-51

2.2 

2.4 

.30 

1.5 

51.5 

.17 

.14 

.01 

.08 

42.8

101.1 

0,4,95

Calcite

161

50F, 

52-52

1.5 

.46 

.32 

.07 

54.0 

.11 

.13 

.02 

.08 

43.1

99.8 

0,3,97

Calcite

162

50F, 

52-53

1.1 

.00 

.2 

2.5 

52.0 

.1 

.1 

.1

43.4

99.5 

1.0.98

Magnesian 

calcite

163

50F, 

155-113

4.3 

.1 

.5 

15.8 

34.4 

.1 

.1 

.2

44.4

99.9 

4.1.94

Calcareous 

dolomite
ANALYSES OF SAMPLES 97

Total

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft), common-rock category Continued

Chemical analyses Continued

A laska C ontinued

MgO ________

CaO ________

P,05 ________

CO, ________

164

50F2 

52-68

. ____ 3.88

____ .39

____ 1.66

____ 52.04

____ .05

____ 42.56

165

50F, 

52-69

2.64 

.18 

3.98 

50.14 

.01 

43.86

166

50F, 

155-117

4 0.76 

.26 

9.66 

44.76 

.04 

T(45.37)

167

50F2 

155-118

4 0.96 

.18 

7.52 

47.08 

.02 

7(45.07)

168 169

50F, 50F, 

155-119 155-120

41.38 4 0.84 

.25 .18 

7.66 3.29 

46.46 51.92 

.03 .02 

T(45.15) T(44.29)

170

50F, 

155-121

4 0.84 

.24 

4.94 

49.26

T(44.18)

171

50F, 

155-122

4 0.76 

.26

9.04 

44.84

T(44.94)

172

155-123

4 1.94 

.24 

7.64 

46.06 

'.01 

T(44.40)

173 174

50Fj 50 Fj 

155-124 155-125

4 1.04 *0.80 

.12 .24 

5.30 7.92 

49.32 46.50 

'.01 '.01 

T(44.37) T(45.00)

175

50F2 

155-126

4 4.90 

.24 

.68 

52.58

T(42.04)

176

50F2 

155-127

4 4.86 

.30 

1.02 

51.96

T( 42.61)

Class____________ (3.1)96 

C

100.56 100.81 [55.48] [55.76] [55.78] [56.25] [55.29] [54.91] [55.89] [55.79] [55.47] [58.41] [58.15]

(2.0)98 (0,1)97 (1.1)98 (1.1)97 (1.1)98 (0.1)98 (0.1)99 (2.1)97 (1.0)98 (0,1)98 (4.1)94 (4,1)95

c , .. Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian

calcite calcite calcite calcite calcite calcite calcite calcite calcite calcite

1 400*-1,000°C .direct combunion. 

2 Gravimetric determination. 

*Not included in total. 

4 Reported as insoluble (HC1).

'Reported as RjOj. 

*May be less than 0.01 percent. 

'Reported as calculated from CaO and 

MgO, not included in total.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

125-148. Healy quadrangle. Middle Devonian. [5.8-6.7. 7.8-8.0], near headwaters of West Fork of Windy Creek. Deposit description: Limestone, 

dark-gray to blue-gray, fine-grained, dense, recrystallized; contains 

abundant calcite veinlets. Estimated thickness 3,100 ft. Index and 

geologic maps. Possible use: Portland cement, mineral wool.

125-138. ( Warfield, 1962, p. 3, 12, 13, 15-17. _19.) Representative 

samples from 100 ft of talus. Tonnage estimated.

125.

126.

127.

128.

129.

130.

131.

573

574

575

576

577

578

579

139- 147. ( Warfield, 1962, p. 3, 12, 13, 15-17, 20.) Representative 

samples from 100 ft of talus. Tonnage estimated.

148. Sample 604. ( Warfield, 1962, p. 3, 12, 13, 15-17,^0.) 

Outcrop sample.

149-152. Healy quadrangle. Paleozoic, possibly Devonian. [About 6.75-7.35, 

7.5-7.7], on ridge parallel to and on south side of West Fork of Windy 

Creek above its confluence with Windy Creek. Analyst, H. E. Peterson. 

( Rutledge and others, 1953, p. 4. 93. 115, 116. 117. figs. 1, 3. 41.) 

Limestone, gray to dark-gray, fine-grained; contains calcite veinlets. 

Outcrop samples. Index and geologic maps.

149.

150.

Sample

157

158

151.

152.

159

160

Alaska Continued

157-162. Healy qnadrangle. Devonian. [About 6.75-7.35. 7.5-7.7], summit of 

west end of ridge southwest of junction of West Fork with Windy Creek. 

Analysts, Leonard Shapiro, L. E. Reichen, S. M. Berthold. ( Moxham, 

Eckhart. and Cobb, 1959, p. 69. 87, 88, pi. 11.) Limestone, dark-gray 

to black; weathers light gray; average thickness 300 ft. Chip samples. 

Tonnage estimated. Index and geologic maps, geologic sections. Possible use: Portland cement.

157.

158.

159.

160.

161.

162.

Lab. No.

1911 C

1912 C

1913 C

1914 C

34

36

38

39

163. Healy quadrangle. Devonian. [7.4-7.8, 7.9-8.1], along upper valley 

slopes on north side of Windy Creek. Analyst, Leonard Shapiro. 

Sample 5. ( Moxham. Eckhart, and Cobb, 1959, p. 69, J2, pi. 11.) 

[Calcareous dolomite] limestone. Index and geologic maps, geologic 

sections.

164, 165. Healy quadrangle. Devonian. [Sec. 7, T. 17 S., R. 7 W., unsurveyed]. 

valley of Little Windy Creek. Analyst, R. K. Bailey. ( Moxham, 

Eckhart, and Cobb, 1959, p. 69, JU, pi. 11.) Limestone. Index and 

geologic maps, geologic sections. Possible use: Probably none; half 

of limestone contains excessive amounts of magnesia.

166-176. Healy quadrangle. Devonian. [Sees. 8, 17, T. 17 S., R. 7 W., unsurveyed] , along south side of ridge between Windy and Bain Creeks, 1 mile 

west of railroad. Northern Empire Development Co. Analyst, 

R. K. Bailey. ( Moxham, Eckhart. and Cobb, 1959, p. 67. 69, 85, 86. 

96, pi. 11.) Deposit: Limestone, dark-gray to black, dense, finegrained; weathers light gray and buff. Maximum thickness 600 ft. Chip 

samples. Index and geologic maps, geologic sections. Possible use: 

Portland cement; but magnesia content often too high.

153- 156. Quadrangle, age. analyst, reference, and maps as in samples 149-152.

[7.4-7.8, 7.9-8.1], 6.5 miles by trail northwest of town of Cantwell. 

Limestone. Outcrop samples.

153.

154.

153

154

155.

156.

155

162

166.

167.

168.

169.

170.

171.

53

54

56

58

59

60

172.

173.

174.

175.

176.

61

62

63

64

65
98 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group F;), common-rock category Continued

Chemical analyses Continued

Si02 ____ ___.

AljO, .

Fe20, _______

MgO _________

CaO _________

Na2O _________

K20___ __ .

P*05 .

C02 _________

SO, _________

Total ___

Class ________

CaO/MgO _____

SiO, _______ .

Al,0, .

FejO, .

MgO .

CaO _______ .

SO, _ .

Total

Class ______ .

CaO/MgO ____ .

Si02 .

Al,0, .

Fe,0, .

MgO .

CaO _______ .

SO, .

Class _____ ....

CaO/MgO ____ .

SiO, _ ______ .

A120, .

FejO, . MgO .

CaO _______ .

SO, _______ .

Total ___.

Class ______ .

CaO/MgO ____ .

177

50Fj 

155-128

___ *2.84

' i '.30

. __ 1.05

. __ 53.22

4 .01

fl/A9 QA\

. __ [57.42]

__ (2,1)96

__ Calcite

190

50F252-76

___ 1.0

___ .50

___ .24

___ 2.35

___ 52.0

___ .01

___ [56.1]

___ 0,2.98

Magnesian

 calcite

203

50F252-89

___ 0.7

___ .56

___ .20

___ 3.10

___ 51.3

___ .01

___ [55.9]

___ 0.1.98

Magnesian

 calcite

216

50F2 

52-102

___ 1.1

___ .9

___ .24

___ 2.05

___ 53.15

___ .02

 [57.5]

____ 0.2.96

Magnesian

calcite

178

50F, 

155-129

'2.42 

'.20

2.33 

51.96

4 .01 

5(44.04)

[56.92] 

(2.1)97

Magnesian 

calcite

191

50FJ52-77

1.8 

.79 

.29 

2.50 

51.2 

.01

[56.6]

0,3.97

Magnesian 

calcite

204

50FJ52-90

0.9 

.53 

.17 

1.25 

53.3 

.01

[56.2] 

0,2,98 

Calcite

217

50F, 

52-103

0.9 

.51 

.21 

1.75 

52.8 

.01

[56.2] 

0,2,98

Calcite

179

50F2 

155-130

4.78 

*.22

1.58 

53.24

4 .01 

5(43.52)

[56.83] 

(1.1)97

Calcite

192

50F252-78

1.0 

.49 

.11 

.80 

53.9 

.01

[56.3] 

0,2.98 

Calcite

205

50F252-91

1.0 

.55 

.17 

2.40 

52.0 

.01

[56.1]

0.2.98

Magnesian 

calcite

218

50F, 

52-104

1.0 

.56 

.24 

1.60 

52.7 

.01

[56.1] 

0,2.97

Calcite

180

50F2 

155-131

*1.72 

'.18

2.42 

52.20

4 .01 

'(43.43)

[56.53] 

(1.1)98

Magnesian 

calcite

193

50Fi52-79

0.9 

.36 

.14 

1.50 

52.9 

.01

[55.8] 

0,1.98 

Calcite

206

50FJ52-92

0.7 

.49 

.15 

1.30 

53.4 

.01

[56.0] 

0.1,98 

Calcite

219

50F, 

52-105

1.8 

.47 

.17 

1.00 

53.0 

.01

[56.4] 

1.2.97

Calcite

Alaska Continued

181 182 183

SOFj 50F2 50F2 

156-98 52-67 52-66

0.8 4.0 2.5

f .7 .85 1.15 

\ 1.2 .25 .44 

3.4 .4 1.5 

51.0 51.8 50.2

.4 _____ ______

.7

.002 _____ ______

39.4 ___

1 (41.0)

[97.8] [57.3] [55.8] 

0.2,88 2.3,93 0,4,93

Magnesian ^^ ^^ 

calcite

Alaska Continued

194 195 196

50Fi52-80 50F252-81 50Fj52-82

1.5 1.9 0.6 

.49 .58 1.01 

.21 .34 .19 

2.45 2.10 3.60 

51.6 51.9 50.7 

.01 .01 .01

[56.3] [56.8] [56.1]

0.2.97 0.3.97 0.1.98

Magnesian Magnesian Magnesian 

calcite calcite calcite

Alaska-Continued

207 208 209

50F252-93 50F252-94 50F252-95

1.1 1.2 1.3 

.67 .65 .63 

.29 .19 .21 

3.95 3.00 1.80 

50.0 51.3 52.5 

.01 .01 .01

[56.0] [56.4] [56.4]

0.2,98 0.2,98 0.2.97

Magnesian Magnesian 

calcite calcite

Alaska Continued

220 221 222

50F, 50F, 50F, 

52-106 52-113 52-114

2.2 . 3.3 3.1 

.79. 1.40 1.35 

.29 .49 .03 

3.15 2.6 2.45 

50.5 50.2 50.3 

.01 .01 .01

[56.9] [58.0] [57.2] 

0,3.96 0,5,93 1,4,95

Magnesian Magnesian Magnesian 

calcite calcite calcite

184

50Fj 

52-65

5.0

1.4 

.50 

5.25 

46.0

[58.2] 

2,5,92

Magnesian 

calcite

197

50F252-83

1.1

.28 

.16 

2.25 

52.2 

.01

[56.0]

0.1.98

Magnesian 

calcite

210

50F»52-96

0.9 

.8 

.34 

4.5 

50.2 

.01

[56.8]

0.2.96

Magnesian 

calcite

223

50F2 

52-115

5.2 

2.65 

.77 

2.2 

48.3 

.01

[59.1] 

0.9.90

Magnesian 

calcite

185

50Fj 

52-72

4.8

.4 

.18 

.5 

52.55

.01

[58.4] 

4.2.94

Calcite

198

50F252-84

1.1

.96 

.20 

4.15 

49.6 

.01

[56.0]

0.2,97

Magnesian 

calcite

211

50F252-97

1.4

.9 

.36 

7.5 

46.15 

.01

[56.3]

0.3,96

Magnesian 

calcite

224

50F, 

52-116

3.3 

1.55 

.61 

1.4 

51.3 

.01

[58.2] 

0.6.93-

Calcite

186

50F2 

52-73

5.4

.6 

.13 

.05 

52.4

[58.6] 

4,2,94

Calcite

199

50F2 52-85

1.6 

.93 

.23 

4.30 

49.4 

.01

[56.5]

0.3,97

Magnesian 

calcite

212

50F|52-98

0.8 

.6 

.21 

3.85 

51.35 

.05

[56.9]

0.1.96

Magnesian 

calcite

225

50F, 

52-117

3.2 

1.25 

.41 

1.35 

51.9 

.02

[58.1] 

1.5.94

Calcite

187

50F2 

52-70

1.8

1.35 

.43 

2.95 

50.95

.01

[57.5] 

0,3.95

Magnesian 

calcite

200

50F252-86

1.3 

.57 

.29 

4.65 

49.3 

.01

[56.1]

0.2.97

Magnesian 

calcite

213

50F252-99

0.8 

.65 

.21 

3.9 

51.15 

.03

[56.7]

0.1,97

Magnesian 

calcite

226

50F2 

52-118

2.6 

1.25 

.40 

1.5 

52.1 

.01

[57.9] 

0.5.94

Calcite

188

50F2 

52-71

1.0

.85 

.36 

4.95 

49.20

.01

[56.4] 

0.2,97

Magnesian 

calcite

201

50F252-87

1.1 

.53 

.23 

3.60 

50.5. 

.01

[56.0]

0,2,98

Magnesian 

calcite

214

189

50F2 

52-75

0.8

.51 

.25 

4.55 

49.7

.01

[55.8] 

0,1.98

Magnesian 

calcite

202

50F252-88

1.1

.78 

.30 

4.85 

48.8 

.01

[55.8]

0,2,97

Magnesian 

calcite

215

50F2 52-100 50F252-101

1.1

.65 

.21 

.85 

54.5 

.01

[57.3] 

0.2.96 

Calcite

227

50F2 

52-119

2.9 

1.40 

.44 

2.2 

51.2 

.01

[58.2] 

0.5,93

Magnesian 

calcite

0.5 

.45 

.14 

.45 

55.3 

.01

[56.8] 

0,1.98 

Calcite

228

50F2

52-120

3.6 

1.65 

.51 

1.5 

50.8 

.01

[58.1] 

0,6,94

Calcite

'Reported as insoluble (HC1) . 

2 Not included in total.

'Reported as R*O,.

4 May be less than 0.01 percent.

'Reported as calculated from CaO and MgO; 

not included in total.
ANALYSES OF SAMPLES 99

DESCRIPTIVE NOTES 

[ Underscored page number* in reference indicate source of analysis]

Alaska Continued

177- 180. Healy quadrangle. Devonian. [Sees. 8, 17, T. 17 S.. R. 7 W., unsurveyed], along south side of ridge between Windy and Bain Creeks. 1 mile 

west of railroad. Northern Empire Development Co. Analyst, 

R. K. Bailey. ( Moxham, Eckhart, and Cobb, 1959, p. 67, 69, 85, 86, 

96, pi. 11.) Deposit: Limestone, dark-gray to black, dense, finegrained; weathers gray and buff. Maximum thickness 600 ft. Chip 

samples. Index and geologic maps, geologic sections. Feasible use: 

Portland cement, but magnesia content often too high.

177.

178.

66

67

179.

180.

68

Alaska Continued

196-209. Drill hole 2. General description: Limestone, gray, dense, 

massive; contains calcite veinlets; total depth of diamonddrill hole 75 ft.

181. Healy quadrangle. Middle Devonian. [Sees. 8, 17, T. 17 S., R. 7 W., 

unsurveyed], Windy-Cantwell area. Sample 622. ( Kenworthy and 

Moreland, 1956, p. 9, 10; Warfield, 1962, p. 3, U-I3, 16, 17.) 

Limestone, dark-gray to blue-gray, fine-grained, dense. Estimated 

thickness 3,100 ft. Index and geologic maps. Results of blowing tests. 

Possible use: Portland cement, mineral wool.

182- 184. Healy quadrangle. Paleozoic, possibly Devonian. [Sec. 7, T. 17 S.,

R. 7 W., unsurveyed], face of bluff on west side of Little Windy Creek. 

Analyst. H. E. Peterson. ( Rutledge and others, 1953, p. 4. 93, 115, 

116. 117, figs. 1, 3, 41.) Limestone, gray to dark-gray, fine-grained; 

contains thin seams of calcite. Outcrop samples. Index and geologic 

maps. Possible use: Probably none, magnesia content often too high.

182. 170

183. 169

184. 168

185- 188. Healy quadrangle. Paleozoic, possibly Devonian. [Sec. 7, T. 17 S.,

R. 7 W., unsurveyed.] Analyst, H. E. Peterson. ( Rutledge and others, 

1953, p. 4. 93, 115, U6. 117, figs. 1, 3. 35. 41.) Outcrop samples. 

Index and geologic maps. Possible use: None, deposit small and in 

remote area.

185. Pinnacle between Bain and Little Windy Creeks. Sample W- 6. 

Limestone.

186. Pinnacle between Bain and Little Windy Creeks. Sample 171. 

Limestone, medium- to dark-gray, fine-grained; contains 

calcite veinlets; fractured and weathered where exposed.

187. Near Little Windy Creek. Sample W-7. Limestone.

188. Near Little Windy Creek. Sample W- 8. Limestone.

189*220. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W . , unsurveyed] , southern slope of Alaska Range in southeastern 

comer of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93, 

95, 102, 123; figs. 1, 3, 35, 41.) Index and geologic maps. Possible 

use for deposit: Portland cement, magnesia content often high so that 

complex mining and thorough blending may be required.

189-195. Drill hole 1. General description: Limestone, gray, dense, 

massive; contains calcite veinlets; total depth of diamond - 

drill hole 35 ft.

196.

197.

198.

199.

200.

201.

202.

203.

204.

205.

206.

207.

208.

209.

65-70 

60-65 

55-60 

50-55 

45-50 

40-45 

35-40 

30-35 

25-30 

20-25 

15-20 

10-15 

5-10 

0- 5

210-220. Drillholes. General description: Limestone, black, finegrained; contains few calcite veinlets; total depth of 

diamond-drill hole 63 ft.

210.

211.

212.

213.

214.

215.

216.

217.

218.

219.

220.

55-60 

50-55 

40-50 

35-40 

30-35 

25-30 

20-25 

15-20 

10-15 

5-10 

0- 5

221- 228. Quadrangle, age, location, analyst, and possible use as in samples

189-220. ( Rutledge and others, 1953, p. 4, 91, 93, 96. 105. 123, 

figs. 1, 3, 35-37, 41.) Limestone, black, fine-grained; contains few 

calcite veinlets and some shale partings; total depth of diamond-drill 

hole 629 ft. Index and geologic maps, geologic section, log of drill 

hole 4. [For other analyses from same drill hole, see samples 229-336, 

this group; sample 3, group C; samples 48-53, group Fj.]

221.

222.

223.

224.

225.

226.

227.

228.

590-595 

585-590 

580-585 

575-580 

570-575 

565-570 

560-565 

555-560
100 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. -"Analyses of samples from Alaska containing more than 90 percent carbonate (Group Fg), common-rock category Continued

Chemical analyses Continued

SiOj _______ .

A120, .

Fe20, .

MgO _______ .

CaO _______ .

SO, .

Total __ .

Class ______ .

CaO/MgO ____ .

Si02 _______ .

AljO, .

FejO, .

MgO .

CaO _______ .

Na.O

KjO ________ .

so,__ ____ _.

Total __ .

Class ______ .

CaO/MgO ___ _.

SiO, _______ .

AljO, __ .

Fe20, .

MgO .

CaO _______ .

SO, .

Class _______ .

CaO/MgO ____ .

SiO, _______ .

Al,0, .

Fe,0, .

MgO .

CaO _______ .

SO, _______ .

Class __ ___ .

CaO/MgO ____ .

229

50F2 

52-121

. __ 3.0

1.10

.37

. __ 1.65

. __ 51.6

. __ .01

. [57.7]

. __ 1.4.95

. __ Calcite

242

50F2 

52-134

___ 1.8

. __ .8

. __ .37

. __ 3.55

___ 50.2

___ .01

. [56.7]

___ 0.3.96

Magnesian

calcite

255

50F2 

52-147

___ 1.1

___ .9

___ .39

___ 6.35

. _ 47.5

___ .01

___ [56.2]

___ 0.2.97

Magnesian

calcite

268

50F, 

52-160

___ 0.3

___ .5

.37

___ 11.2

___ 42.7

___ .01

. [55.1]

___ 0,1.98

Calcareous

dolomite

230

50Fj 

52-122

3.7

1.40

.43

1.3

51.4

.01

[58.2]

1.5.93

243

50F2 

52-135

1.85

1.05

.49

4.25

49.1

.01

[56.8]

0.3.96

Magnesian

calcite

256

50F, 

52-148

1.0

1.35

.43

5.35

48.5

.01

[56.6]

0.2.96

Magnesian

calcite

269

50F2 

52- 162

0.5

.95

.36

12.65

41.0

.01

[55.5]

0,1.97

Calcareous

dolomite

231

50F2 

52-123

4.1

1.75

.69

.9

51.2

.01

[58.6]

0,7,92

Calcite

244

50F, 

52-136

1.8

.9

.34

4.0

49.6

.01

[56.6]

0,3,96

Magnesian

calcite

257

50F, 

52-149

0.4

.75

.44

7.1

47.3

.01

[56.0]

0,1.97

Magnesian

calcite

270

50F2 

52-163

0.4

.65

.40

13.35

39.9

.01

[54.7]

0,1.98

Calcareous

dolomite

232

50F2 

52-124

2.3

1.05

.33

1.0

52.8

.01

[57.5]

0,4,95

Calcite

245

50F2 

52-137

2.4

.9

.29

2.4

51.1

.01

[57.1]

0,3,96

Magnesian

calcite

258

50F2 

52-150

0.6

1.05

.43

5.7

48.6

.01

[56.4]

0,1.97

Magnesian

calcite

271

50F2 

52-164

0.6

.5

.36

11.75

42.2

.01

[55.4]

0.1.97

Calcareous

dolomite

Alaska Continued

233 234 235

50F2 50F2 50Fj 

52-125 52-126 52-127

3.6 2.3 3.3

1.75 .85 2.20

.37 .36 .43

1.1 .8 2.1

51.7 53.1 50.9

.01 .01 .01

[58.5] [57.4] [58.9]

0.6,93 0,3,96 0,6,91

Magnesian Calcite Calcite ^

Alaska Continued

246 247 248

50F, 50F2 50F, 

52-138 52-139 52-140

1.6 3.75 1.8

.75 1.1 .75

.27 .31 .24

2.65 2.55 2.6

51.4 49.4 51.5

.01 .01 .01

[56.7] [57.1] [56.9]

0,3,97 1,4,94 0.3,96

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

259 260 261

50F2 50F2 50F, 

52-151 52-152 52-153

0.5 0.35 0.75

.85 .65 .95

.40 .29 .49

6.1 6.25 6.8

48.2 49.1 47.1

.01 .01 .01

[56-.1] [56.6] [56.1]

0.1,97 0.1.96 0,1,97

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

272 273 274

50F2 50F2 50F, 

52-165 52-166 52-167

0.6 1.7 1.25

.55 .75 1.0

.20 .37 .29

1.6 7.15 1.7

55.8 46.9 53.0

.01 .01 .01

[58.8] [56.9] [57.2]

0,1,93 0,3,95 0,2.96

Calcite Maf>ian Calcite calcite

236

50F, 

52-128

3.9

1.55

.57

1.25

51.5

.01

[58.8]

1,6,92

Calcite

249

50F2 

52-141

0.75

.5

.24

3.1

51.4

.01

[56.0]

0,1.98

Magnesian

calcite

262

50F, 

52-154

0.5

.7

.56

8.6

43.3

.01

[53.7]

0.1,95

Magnesian

calcite

275

50F2 

52-168

2.55

1.15

.49

2.15

50.9

.01

[57.2]

0.5.95

Magnesian

calcite

237

50F2 

52-129

3.5

1.50

.50

.15

51.5

.01

LoV.2]

0,6,92

Calcite

250

50F, 

52-142

1.2

.7

.33

3.05

50.9

.01

[56.2]

0,2,97

Magnesian

calcite

263

50F2 

52-155

0.3

.65

.36

7.4

44.7

.01

[53.4]

0.1.95

Magnesian

calcite

276

50F2 

52-169

3.25

1.1

.17

.3

53.2

.01

[58.0]

1.4.95

Calcite

238

50F2 

52-130

2.6

1.35

.47

.45

48.6

.01

[53.5]

0,5.88

Calcite

251

50F2 

52-143

0.8

.65

.31

.6

53.9

».01

'.01

.01

[56.3]

0.1,97

Calcite

264

50F2 

52-156

0.3

.5

.29

8.1

44.4

.01

[53.6]

0.1,96

Magnesian

calcite

277

50F2 

52-170

2.95

.9

.20

.35

53.5

.01

[57.9]

1,3,95

Calcite

239

50F2 

52-131

4.2

1.30

.53

.4

49.0

.01

[55.4]

1,5,88

Calcite

252

50Fj 

52-144

1.25

.65

.33

3.9

50.0

.01

[56.1]

0.2.97

Magnesian

265 '

50F2 

52-157

1.35

.6

.34

8.2

48.4

.01

[57.9]

0,1,93

Magnesian

calcite

278

50F2 

52-171

3.15

.9

1.33

2.35

51.1

.01

[58.8]

0.6.91

Magnesian

calcite

240

50F2 

52-132

3.85

1.45

.53

5.05

46.6

.01

[57.5]

1.6,93

Magnesian

calcite

253

50F, 

52-145

1.55

.45

.26

3.55

50.9

.01

[56.7]

0.2,97

Magnesian

calcite

266

50F2 

52-158

0.6

.95

.37

8.05

45.7

.01

[55.7]

0,1.97

Magnesian

279

50F2 

52-172

4.35

.95

.31

3.55

48.8

.01

[58.0]

2,4.93

Magnesian

241

50F2 

52-133

2.7

.8

.31

2.4

50.4

.01

[56.6]

1,3,95

Magnesian

calcite

254

50F2 

52-146

1.0

.65

.33

3.4

51.3

.01

[56.7]

0,2.97

Magnesian

267

50F2 

52-159

0.15

.65

.31

5.85

47.9

.01

[54.9]

0,0,98

Magnesian

280

50F2 

52-173

3.9

1.05

.37

5.3

47.1

.01

[57.7]

2,4,93

Magnesian
ANALYSES OF SAMPLES 101

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft),common-rock category Continued

Chemical analyses Continued

Alaska Continued

SiOj ____ _ _ .

A1.0, .

Fe,0, .

MeO ______ .

CaO ______ .

SO, .

Total __ .

Class _______ .

CaO/MgO ____ .

281

50FS 

52-174

. __ 0.9

.6

.___ .24

. 3.7

._ 51.3

-___ .01

. __ [56.8]

___ 0.2,97

Magnesian

calcite

282

50F, 

52-175

3.7 

1.35 

.36 

1.4 

51.4 

.01

[58.2] 

1.5,93 

Calcite

283

50F, 

52-177

1.95

.8 

.30 

4.45 

49.3 

.01

[56.8]

0,3,96

Magnesian 

calcite

284

50F, 

52-178

1.45 

.8 

.34 

3.65 

50.9 

.01

[57.2]

0.3,96

Magnesian 

calcite

285 286

50Ff 50F| 

52-179 52-180

1.75 2.25 

1.35 1.0 

.21 .31 

4.95 4.05 

48.9 49.7 

.01 .01

[57.2] [57.3]

0.3,95 0.4.95

Magnesian Magnesian 

calcite calcite

287

50FS 

52-181

2.2 

.6 

.13 

2.75 

51.5 

.01

[57.2]

1,2.96

Magnesian 

calcite

288

50F, 

52-182

2.7 

1.15 

.36 

4.45 

48.8 

.01

[57.5]

0,4.94

Magnesian 

calcite

289

50F» 

52-183

2.3 

1.45 

.43 

6.45 

46.6 

.01

[57.2]

0.4.94

Magnesian 

calcite

290

50FS 

52-184

2.00 

1.2 

.37 

5.8 

47.7 

.01

[57.1]

0.4.95

Magnesian 

calcite

291

50F, 

52-185

4.95 

.9 

.21 

3.65

48.4 

.01

[58.1]

3.3,93

Magnesian 

calcite

292

50F, 

52-186

3.85 

1.2 

.27 

3.4 

49.4 

.01

[58.1]

1.4,93

Magnesian 

calcite

293

50Ft 

52-187

1.7 

1.0 

.29 

2.7 

51.5 

.01

[57.2]

0.3.96

Magnesian 

calcite

Reported as composite.

DESOUPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Alaska Continued

229-293. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 

93, 96, 103-105, 123, figs. 1, 3, 35-37, 41.) Total depth of diamonddrill hole 629 ft. Index and geologic maps, geologic section, log of 

drill hole 4. Possible use for deposit: Portland cement, magnesia content often high so that complex mining and thorough blending may be 

required. [For other analyses from same drill hole, see samples 221-228, 

294-336, this group; sample 3, group C; samples 48-53, group F].]

229. Limestone, black, fine-grained; contains few calcite veinlets 

and some shale partings; depth 550-555 ft.

230. Limestone, black, fine-grained: contains few calcite veinlets 

and some shale partings; also includes 1 ft of pure-white 

crystalline limestone; depth 545-550 ft.

231-237. Limestone, black, fine-grained.

Depth(ft) Depth(ft)

231.

232.

233.

234.

540-545 

535-540 

530-535 

525-530

235.

236.

237.

520-525 

515-520 

510-515

238-241. Limestone, blue-gray; contains calcite veinlets. 

Depth (ft) Depth(ft)

238.

239.

505-510 

500-505

240.

241.

495-500 

490-495

242- 257. Limestone, black, fine-grained; contains few calcite veinlets, 

some brown clay like residue, and few shale partings.

242.

243.

244.

245.

485-490 

480-485 

475-480 

470-475

246.

247.

248.

249.

465-470 

460-465 

455-460 

450-455

Alaska Continued

258. Limestone; part black, fine grained; part gray; contains 

calcite veinlets and some brown claylike residue; depth 

405-410 ft.

259-267. Limestone, gray; contains calcite veinlets and some brown 

claylike residue.

(ft)

268. Limestone, gray, massive; depth 350-355 ft.

269 - 273. Limestone.

272.

273.

325-330 

320-325

274-293. Limestone, black, fine-grained; contains few calcite veinlets. 

Brown shale partings, depth 270-277 ft.

i(ft)
102 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft)' common-rock category Continued

Chemical analyses Continued

SiOj ______ .

AljO, .

Fp.n.

MgO .

CaO ______ .

SO, ______ .

Total __ .

Class ______ .

CaO/MgO ___ .

SiOj __ __ .

Ai r*

FP.O.

MgO .

CaO ______ .

SOj ______ .

Total __ .

Class ______ .

CaO/MgO ____ .

SiOj ______ .

Al,0, .

Fe»O«

MgO .

CaO _______ .

SO, .

Total __ .

Class ______ .

CaO/MgO .

SiOj _______ .

Al,0, .

FP.D.

MgO .

CaO ______ .

NajO_ ___ ___.

K»0 _ .

SO, _ .

Total __ .

Class ______ .

CaO/MgO .

294

50Fj 

52-188

. __ 1.45

. __ .7

. __ .20

. __ 1.65

. __ 53.5

. __ .01

. [57.5]

. __ 0,3,95

. __ Calcite

307

50Fj 

52-201

. __ 1.65

. __ 1.25

. __ .35

. __ 3.15

. __ 50.95

. __ .005

. __ [57.36]

. __ 0.3,95

Magnesian

calcit e

320

50Fj 

52-214

__ 0.6

.9

___ .20

___ .45

___ 54.4

___ .01

___ [56.6]

___ 0,1,98

___ Calcite

333

50Fj 

52-227

___ 0.6

___ .55

___ 1.15

___ 53.8

___ .01

___ [56.3]

___ 0,1,98

.___ Calcite

295

50Fj 

52-189

2.15

.55

.19

1.3

53.3

.01

[57.5]

1,2,96

Calcite

308

50Fj 

52-202

2.2

1.55

.23

49.2

.005

[57.2]

0,4,95

Magnesian

calcite

321

50 Fj 

52-215

0.95

1.2

.56

5.55

49.1

.01

[57.4]

0,2,95

Magnesian

calcite

334

50Fj 

52-228

1.7

.75

.18

.9

53.2

.01

[56.7]

0.3,97

Calcite

296

50Fj 

52-190

2.25

1.4

.57

7.95

45.0

.01

[57.2]

0,4,94

Magnesian

calcite

309

50Fj 

52-203

1.6

1.05

.41

3.25

50.55

.005

[56.9]

0,3,96

Magnesian

calcite

322

50Fj 

52-216

0.6

.95

.25

3.3

51.5

.01

[56.6]

0,1,97

Magnesian

calcite

335

50Fj 

52-229

2.5

.9

1.0

53.3

.01

[57.9]

1,3,95

Calcite

297

50F2 

52-191

1.8

1.1

.39

5.55

48.4

.01

[57.2]

0,3,94

Magnesian

calcite

310

50Fj 

52-204

1.2

.95

.25

51.85

.005

[57.2]

0,2,96

Magnesian

calcite

323

50Fj

52-217

0.5

.65

.16

.95

54.2

.01

[56.5]

0,1,98

336

50Fj 

52-230

2.4

1.35

.37

4.05

49.6

'.01

'.01

.01

[57.8]

0,4,94

Magnesian

calcite

Alaska Continued

298 299 300

50Fj 50Fj 50Fj 

52-192 52-193 52-194

1.1 1.3 1.45

.65 1.1 1.05

.33 .39 .30

3.7 5.0 3.0

51.7 49.5 51.45

.01 .01 .005

[57.5] [57.3] [57.3]

0,2,95 0,2,95 0,3,96

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

311 312 313

50Fj 50Fj 50Fj 

52-205 52-206 52-207

1.75 0.65 0.6

1.05 .65 .85

.30 .27 .28

49.4 53.25 51.15

.005 .005 .005

[56.9] [57.0] [56.5]

0,3,96 0.1.97 0,1,97

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

324 325 326

50F, 50Fj 50Fj 

52-218 52-219 52-220

0.95 0.95 0.75

.60 .75 .65

.20 .36 .36

3.25 5.15 4.15

51.7 49.6 50.5

.01 .01 .01

[56.7] [56.8] [56.4]

0,2,97 0,2,96 0,1,97

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

337 338 339

50F2 50Fj 50Fj 

52-236 52-237 52-238

4.6 3.8 3.2

2.10 1.75 1.25

1.7 1.8 .9

49.3 50.3 51.7

.01 .01 .01

[57.7] [57.7] [57.1]

1,6,92 1,5,94 1.4,94

Calcite Calcite Calcite

301

50Fj 

52-195

0.9

.6

.20

2.8

51.95

.005

[56.5]

0,2.98

Magnesian

calcite

314

50Fj 

52-208

0.8

.85

.21

1.75

53.45

.005

[57.1]

0,1,97

Calcite

327

50F, 

52-221

0.45

.55

.21

3.15

52.4

.01

[56.8]

0.1,97

Magnesian

calcite

340

50Fj 

52-239

4.8

1.80

1.45

49.7

.01

[57.8]

2,5,92

Calcite

302

50Fj 

52-196

1.0

1.1

.35

4.75

50.0

.005

[57.2]

0,2,95

Magnesian

calcite

315

50Fj 

52-209

0.65

.75

.23

2.0

53.35

.005

[57.0]

0,1,97

Calcite

328

50Fj 

52-222

0.4

.65

.23

3.15

52.1

.02

[56.6]

0,1.97

Magnesian

calcite

. 341

50F,

52-240

3.0

1.55

1.5

50.7

.01

[56.8]

0,5,94

Calcite

303

50Fj 

52-197

0.8

.9

.25

4.55

50.35

.005

[56.9]

0,1,96

Magnesian

calcite

316

50Fj 

52-210

0.85

.85

.32

3.65

51.35

.005

[57.02]

0,2,96

Magnesian

calcite

329

50Fj 

52-223

0.7

.65

.16

.6

54.5

.01

[56.6]

0,1,98

Calcite

342

50Fj 

52-241

5.2

2.25

3.5

47.1

.01

[58.1]

1,7,91

Magnesian

calcite

304

50Fj 

52-198

0.95

.75

.18

2.7

52.35

.005

[56.9]

0,2,97

Magnesian

calcite

317

50Fj 

52-211

0.8

.7

.11

.85

54.6

.005

[57.1]

0,1.97

Calcite

330

50Fj 

52-224

0.7

.55

.11

.45

55.4

.01

[57.2]

0,1,97

Calcite

343

50 Fj 

52-242

5.0

1.25

.95

50.9

.01

[58.1]

3,4,93

Calcite

305

50Fj 

52-199

2.4

.65

.15

2.05

51.95

.005

[57.2]

1,2,96

Magnesian

calcite

318

50Fj 

52-212

1.2

.8

.27

2.0

53.45

.005

[57.7]

0,2,95

Calcite

331

50Fj 

52-225

0.3

.6

.11

.35

55.4

.01

[56.8]

0,1,98

Calcite

344

50Fj 

52-243

5.6

1.8

J .20

1.0

49.9

'.007

».01

.01

[58.5]

2,6,91

Calcite

306

50Fj 

52-200

2.45

.75

.18

3.5

50.65

.005

[57.5]

1,3,95

Magnesian

calcite

319

50Fj 

52-213

0.45

.75

.16

.55

54.6

.01

[56.5]

0,1,98

Calcite

332

50F, 

52-226

1.0

.55

.13

.6

55.0

.01

[57.3]

0,2,97

Calcite

345

50F2 

52-244

2.6

1.0

1.05

52.5

.01

[57.2]

1,3,96

Calcite
ANALYSES OF SAMPLES 103

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

Alaska Continued

SiOj ___ ___

Fe,O,

MgO ______

CaO ______

SO, _______

346

50F, 

50-245

_____ 2.2

_____ 1.1

_____ .45

_____ 52.9

_____ .01

347

50F, 

50-246

2.6 

1.05

1.1 

52.1 

.01

348

50Fj 

50-247

5.4 

1.6

.85 

50.7 

.01

349

50F, 

50-248

2.2 

1.3

1.0 

52.2 

.01

350

50Ft 

50-249

2.0 

1.35 

.47 

1.45 

51.9 

.01

351

52-250

2.8 

1.15 

.46 

1.4 

52.0 

.01

352

50F, 

52-251

3.5 

1.70 

.47 

1.6 

51.2 

.01

353

50FZ 

50-252

2.6 

1.65 

.63 

1.3 

51.8 

.01

354

50FZ 

50-253

5.5 

3.10 

.89 

1.55 

48.6 

.01

355

50FZ 

50-254

4.0 

3.5 

.82 

2.45 

48.2 

.01

356

50FZ 

50-255

5.1 

3.15 

.80 

2.1 

47.5 

.01

357

50FZ 

50-257

3.75 

3.1 

.72 

1.35 

52.0 

.01

358

50Ft 

50-258

5.35 

2.5 

.57 

1.65 

48.2 

.01

Total ______ [56.7] [56.9] [58.6] [56.7] [57.2] [57.8] [58.5] [58.0] [59.6] [59.0] [58.7] [60.9] [58.3]

Class. 0.3,95 1.3,95 3.5,92 0.4.95 0,4.96 0,5.94 0,6.93 0,5.94 0,10,89 0.7,91 0.9,89 0,7,87 0,9,89

CaO/MgO__ ___ Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Magnesian Magnesian

calcite calcite Calcite Calcite

'Reported as composite.

Alaska Continued

DESCRIPTIVE NOTES 

[Underscored page numbers In reference indicate source of analysis]

Alaska Continued

294-336. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S.. 

R. 7 W., unsurveyed], southern slope of Alaska Range In southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst. H. E. Peterson. (Rutledge and others, 1953, p. 4, 91. 

93, 96, JL03, 123, figs. 1, 3, 35-37, 41.) Total depth of diamond-drill 

hole 629 ft. Index and geologic maps, geologic section, log of drill 

hole 4. Possible use for deposit: Portland cement; magnesia content 

often high so that complex mining and thorough blending may be required. 

[For other analyses from same drill hole, see samples 221-293, this group; 

sample 3, group C; samples 48-53, group Ft.]

294- 325. Limestone, black, fine-grained; contains few calcite veinlets. 

Depth (ft) Depth(ft)

337-358. Healy quadrangle. Paleozoic, possibly Devonian. [Sect. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. (Rutledge and others, 1953, p. 4, 91, 93, 

97, 106. 123. figs. 1. 3, 35, 36, 38, 41.) Total depth of diamonddrill bole 265 ft. Index and geologic maps, geologic section, log of drill 

hole 6. Possible use for deposit: Portland cement; magnesia content often 

high so that complex mining and thorough blending may be required. [For 

other analyses from same drill hole, see samples 359-379, this group; 

sample 22, group B; samples 54-58, group Ft.]

337-347. Limestone, black, fine-grained. 

Depth(ft)

310.

311.

312.

313.

314.

315.

316.

317.

318.

319.

320.

321.

322.

323.

324.

325.

130-135 

125-130 

120-125 

115-120 

110-115 

105-110 

100-105 

95-100 

90- 95 

85- 90 

80- 85 

75- 80 

70- 75 

65- 70 

60- 65 

55- 60

348. Depth (ft)

168-170 __ _ Limestone, black, fine-grained. 

165-168 _ Limestone, gray, fine-grained.

349-353. Limestone, black, fine-grained.

Depth (ft) Depth(ft)

352.

353.

145-150 

140-145

326-336. Limestone, black, fine-grained, crystalline; contains calcite veinlets and some brown clay like residue.

326.

327.

328.

329.

330.

331.

50-55 

45-50 

40-45 

35-40 

30-35 

25-30

332.

333.

334.

335.

336.

20-25

15-20

10-15

5-10

0- 5

139-140 Limestone, black.

135-139 _ Limestone, black, fine-grained; contains

calcite veinlets and brown clay like residue.

355-358. Limestone, black, fine-grained; contains calcite veinlets 

and brown clay like residue.

355.

356.

357.

358.
104 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group F^,common-rock category Continued

Si02 __ __.

A120, .

Fe20, .

MgO .

CaO _______ .

SO, _______ .

Class ______ .

CaO/MgO ____ .

SiO, ___ .

AlzO, .

Fe20, .

MgO .

CaO _______ .

Na,0 __ _ ___ .

K20 ________ .

SO, _______ .

Class _______ .

CaO/MgO ___ .

Si02 _______ .

A120, .

Fe20, .

MgO .

CaO _______ .

Na20 .

K20 ___ _ ___ .

SO, _______ .

CaO/MgO ___ _.

Si02 _______ .

A120, .

Fe20, __ _ __ .

MgO .

CaO _______ .

SO, _______ .

Total __ .

Class ______ .

CaO/MgO ___ .

359

50F2 

52-259

. __ 1.4

___ 1.25

. __ .33

. __ 2.0

___ 51.3

___ .01

.__, [56.3]

. __ 0.2,96

Magnesian

calcite

372

50F2 

52-272

. __ 1.45

___ 1.7

___ 1.25

___ 53.15

. __ .005

. [57.9]

___ 0,3,95

. __ Calcite

385

50F2 

154-6

. __ 0.6

. __ .35

___ 6.55

___ 48.C

. __ .01

___ [55.5]

. __ 0,1.98

Magnesian

calcite

398

50F2 

154-19

. __ 1.1

. __ .7

___ .34

___ 5.55

___ 48.5

. __ .01

. __ [56.2]

.___ 0,2,97

Magnesian

calcite

360

50F2 

52-260

2.8

1.55

.34

2.75

49.5

.01

[57.0]

0,5.94

Magnesian

calcite

373

50 F2 

52-273

3.45

1.7

44

2.15

50.85

.005

[58.6]

0,6,92

Magnesian

calcite

386

50F2 

154-7

0.6

.40

'.55

7.8

46.6

.01

[56.0]

0,1.97

Magnesian

calcite

399

50F2 

154-20

1.4

.6

.21

3.1

51.0

.01

[56.3]

0,2,98

Magnesian

calcite

361

50F2 

52-261

1.7

1.15

.24

3.45

49.7

.01

[56.2]

0,3.96

Magnesian

calcite

374

50 F2 

52-274

1.7

1.15

3.4

51.25

.005

[57.7]

0,3,94

Magnesian

calcite

387

50F2 

154-8

0.8

.55

6.0

48.8

.01

[56.2]

0,1,97

Magnesian

calcite

400

50F2 

154-21

1.4

.6

.24

6.25

47.6

.01

[56.1]

0,2,97

Magnesian

calcite

362

50F2 

52-262

3.85

1.0

.24

2.9

49.2

.01

[57.2]

2,4,94

Magnesian

calcite

375

50F2 

52-276

2.7

1.5

7.15

45.05

.005

[57.0]

0.5,94

Magnesian

calcite

388

50F2 

154-9

0.6

.40

3.3

52.0

.01

[56.3]

0.1.98

Magnesian

calcite

401

50F2 

154-22

0.9

.7

.20

3.95

50.7

.01

[56.5]

0,2,97

Magnesian

calcite

Chemical analyses Continued

Alaska Continued

363 364 365

50F2 50F2 50F2 

52-263 52-264 52-265

4.1 2.1 1.75

1.35 1.05 1.05

.29 .17 .20

4.45 3.1 1.95

47.2 49.6 52.0

.01 .01 .01

[57.4] [56.0] [57.0]

1,5,94 0.4.95 0,3,97

Magnesian Magnesian _ , . 6 6, Calcite calcite calcite

Alaska Continued

376 377 378

50F2 50F2 50F2 

52-277 52-278 52-279

0.8 0.45 0.7

.9 .8 .85

3.0 3.5 3.05

51.95 51.55 52.35

.005 .005 .005

[56.9] [56.6] [57.2]

0.1,96 0.1.97 0,1,96

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

389 390 391

50F2 50F2 50F2 

154-10 154-11 154-12

0.8 0.8 1.0

.25 .45 .60

1.6 2.9 3.75

53.9 52.2 51.1

_ _ __ J.013

_____ _____ '.01

.01 .01 .01

[56.6] [56.4] [56.5]

0,1.98 0.1.98 0.2.97

Magnesian Magnesian Calcite 6, . 6, .

calcite calcite

Alaska Continued

402 403 404

50F2 50F2 50F2 

154-23 154-24 154-25

1.5 1.2 1.2

.85 .75 .55

.26 .23 .17

5.3 2.45 1.75

48.7 52.0 53.2

.01 .01 .01

[56.6] [56.6] [56.9]

0,3.96 0.2.97 0.2,97

Magnesian Magnesian

calcite calcite

366

50F2 

52-266

1.15

1.3

.26

3.2

50.3

.01

[56.2]

0,2,96

Magnesian

calcite

379

50F2 

52-280

0.35

.5

.15

1.2

54.8

'.01

'.01

.005

[57.0]

0.1,97

Calcite

392

50F2 

154-13

1.0

.6

.19

3.0

52.3

.01

[57.1]

0.2.96

Magnesian

calcite

405

50F2 

154-26

1.0

.45

.21

1.7

53.2

.01

[56.6]

0,2,98

Calcite

367

50F2 

52-267

2.95

1.1

.26

2.0

50.1

.01

[56.4]

1,4,94

Magnesian

calcite

380

50F2 

154-1

1.8

.55

4.0

50.2

.01

[56.6]

1.2.97

Magnesian

calcite

393

50Fj 

154-14

0.9

.55

.21

3.45

51.2

.01

[56.3]

0.2.98

Magnesian

calcite

406

50F2 

154-27

1.2

.45

.26

1.95

53.0

.01

[56.9]

0,2.97

Calcite

368

50F2 

52-268

5.2

1.1

.31

3.4

46.9

.01

[56.9]

3,4.91

Magnesian

calcite

381

50F2 

154-2

2.0

1.0

3.0

50.7

.01

[56.7]

0.3,97

Magnesian

calcite

394

50F2 

154- 15

0.8

.45

.21

3.35

51.8

.01

[56.6]

0.1.97

Magnesian

calcite

407

50F2 

154-28

1.9

.65

.29

1.1

52.9

.01

[56.8]

0.3.97

Calcite

369

50F2 

52-269

2.1

.95

.36

.95

52.0

.01

[56.4]

0,4.95

Calcite

382

50F2 

154-3

1.6

.60

7.3

46.3

.01

[55.8]

1.2,97

Magnesian

calcite

395

50F2 

154-16

1.3

.55

.23

3.45

51.0

.01

[56.5]

0.2.97

Magnesian

408

50F2 

154-29

3.2

1.25

.39

.7

52.5

.01

[58.0]

1,5,94

Calcite

370

50F2 

52-270

2.8

1.25

.43

2.6

50.0

.01

[57.1]

0,5.95

Magnesian

calcite

383

50F2 

154-4

0.8

.55

4.4

50.7

.01

[56.5]

0,1.97

Magnesian

396

50F2 

154-17

0.5

.5

.16

3.9

51.2

.01

[56.3]

0.1.98

Magnesian

409

50F2 

154-30

2.2

.05

.34

1.3

52.2

.01

[56.1]

2.1.96

Calcite

371

50F2 

52-271

1.4

1.1

.28

2.0

52.65

.005

[57.4]

0.2.96

Calcite

384

50F2 

154-5

0.6

.55

8.45

46.0

.01

[55.6]

0.1,98

Magnesian

397

50F2 

154-18

1.5

.65

.26

3.9

50.3

.01

[56.6]

0.3,97

Magnesian

410

50F2 

154-31

2.1

1.05

.77

6.35

46.6

.01

[56.9].

0.4,95

Magnesian

'Reported as composite.
ANALYSES OF SAMPLES 105

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Alaska Continued Alaska Continued

359-379. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93 

97, .105, .106, 123, figs. 1, 3, 35, 36, 38, 41.) Total depth of diamonddrill hole 265 ft. Index and geologic maps, geologic section, log of drill 

hole 6. Possible use for deposit: Portland cement, magnesia content often 

high so that complex mining and thorough blending may be required. [For 

other analyses from same drill hole, see samples 337-358, this group; 

sample 22, gronp B; samples 54-58, group FI.]

359-378. Limestone, black, fine-grained; contains calcite veinlets; 

brown clay like residue, depth 20-25 ft.

386.

387.

165-170 

160-165

388.

389.

155-160 

150-155

359. 

360.

361.

362.

363.

364.

365.

366.

367.

368.

379. Depth (ft)

3-5

0-3

105-110 

100-105

95-100

90- 95

85- 90

80- 85

75- 80

70- 75

65- 70

60- 65

- Limestone, ,

369. 

370.

371.

372.

373.

374.

375.

376.

377.

378.

hlark.

calcite veinlets.

. Limestone. blue -21

55-60 

50-55

45-50

40-45

35-40

30-35

20-25

15-20

10-15

5-10

fine -grain*

:av. fine- 2

380-410. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93, 

97. 107, 123, figs. 1, 3, 35, 36, 38, 41.) Total depth of drill hole 

200 ft. Index and geologic maps, geologic section, log of drill hole 7. 

Possible use for deposit: Portland cement, magnesia content often high 

so that complex mining and thorough blending may be required. [For 

other analyses from same drill hole, see samples 411-418, this group.]

380- 389. Limestone, black, fine-grained; contains calcite veinlets. 

Depth(ft) Depth (ft)

380.

381.

382.

195-200 

190-195 

185-190

383.

384.

385.

180-185 

175-180 

170-175

390, 391. Limestone, blue-gray, fine-grained; contains calcite veinlets.

390. Depth 145-150 ft.

391. Depth 140-145 ft.

392-396. Limestone, black, fine-grained.

Depth (ft) Depth (ft)

392.

393.

394.

135-140 

130-135 

125-130

395.

396.

120-125 

115-120

397. Limestone, blue-gray, fine-grained; contains a few bands of 

white limestone; depth 110-115 ft.

398, 399. Limestone, black, fine-grained; contains few calcite veinlets.

398. Depth 105-110 ft.

399. Depth 100-105 ft.

400-402. Limestone, blue-gray, fine-grained.

400. Depth 95-100 ft.

401. Depth 90-95 ft.

402. Depth 85-90 ft.

403-408. Limestone, blue-gray, fine-grained; contains calcite veinlets. 

Depth (ft) Depth (ft)

403.

404.

405.

80-85 

75-80 

70-75

406.

407.

408.

65-70 

60-65 

55-60

52.5-55 _ __ Limestone, white, crystalline. 

50 -52.5_____ Limestone, black, fine-grained; contains 

calcite veinlets.

410. Limestone, black, fine-grained; contains calcite veinlets; 

depth 45-50 ft.
106 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group F2), common-rock category Continued

Si02 _ _________ _

A120, ___________

Fe20, ___________

MgO ___ __

CaO ____________

SO, ______ __

Total _______

Class ____________

CaO/MgO _________

Si02 _ _____ __

A120, ___________

Fe20, ___________

MgO ____________

CaO ____________

Na20__ __________

SO, ____________

Total _______

Class ____________

CaO/MgO _________

SiO2 ______ _ _

A120, __ __ 

Fe-D.

MgO ____________

CaO __ ________

SO, ____________

Total ___ _

CaO/MgO _________

SiOj ____________

AljO, ___________

Fe20, ___________

MgO ____________

CaO ____________

SO, ____________

Total _______

CaO/MgO _________

411

50F2 

154-32

1.4

.7

.49

6.05

47.6

.01

[56.2]

0,3,97

Magnesian 

calcite

424

50F2 

154-51

5.5

2.95

.79

2.9

46.6

.01

[58.8]

0,10,89

Magnesian

calcite

437

50F2 

154-64

2.15

1.00

.24

2.8

51.1

.01

[57.3]

0,4,95

Magnesian 

calcite

450

50F2 

154-77

0.8

.7

.33

2.4

51.2

.01

[55.4]

0,1,96

Magnesian 

calcite

412

50 F2 

154-33

0.4

.4

.14

4.5

50.4

.01

[55.8]

0,1.99

Magnesian 

calcite

425

50F2 

154-52

3.7

2.0

.64

1.8

49.8

.01

[58.0]

0,7,93

Calcite

438

50F2 

154-65

1.15

.95

.37

4.7

49.4

.01

[56.6]

0,2,97

Magnesian 

calcite

451

50F2 

154-78

1.05

.6

.40

5.3

48.6

.01

[56.0]

0,2,98

Magnesian 

calcite

413

50 F2 

154-34

1.1

.5

.23

7.85

46.2

.01

[55.9]

0,2,97

Magnesian 

calcite

426

50 F2 

154-53

3.7

1.8

.67

1.7

49.8

.01

[57.7]

0,7,92

439

50F2 

154-66

1.2

.85

.38

3.9

50.5

.01

[56.8]

0,2,96

Magnesian 

calcite

452

50FS 

154-79

0.85

.65

.26

5.7

48.4

.01

[55.9]

0,2,98

Magnesian 

calcite

414

50F2 

154-35

.5

.16

2.9

52.0

.01

[56.7]

0,2,97

Magnesian 

calcite

427

50F2 

154-54

3.0

1.65

.37

1.7

50.5

.01

[57.2]

0,5,94

440

50F2 

154-67

0.8

.7

.27

4.5

50.0

.01

[56.3]

0,1,97

Magnesian 

calcite

453

50F2 

154-80

2.1

.85

.31

3.8

49.8

.01

[56.9]

0,3,96

Magnesian 

calcite

Chemical analyses Continued

Alaska Continued

415 416 417

50F2 50F2 50F2 

154-36 154-37 154-38

1.3 0.3 1.6

.65 .55 .65

.21 .26 .20

5.05 3.9 3.05

49.2 51.0 51.7

.01 .01 .01

[56.4] [56.0] [57.2]

0,2,97 0,1,98 0,2,96

Magnesian Magnesian Magnesian 

calcite calcite calcite

Alaska Continued

428 429 430

50F2 50F2 50F2 

154-55 154-56 154-57

3.6 2.5 2.7

1.6 .95 1.25

.58 .40 .43

1.1 .9 .9

52.5 50.4 52.1

.01 .01 .01

[59.4] [55.2] [57.4]

0,6,91 0,4,92 0,5,95

Calcite Calcite Calcite

Alaska Continued

441 442 443

50F2 50F2 50F2 

154-68 154-69 154-70

0.6 1.9 0.6

.75 .45 .45

.23 .19 .21

3.4 3.6 6.6

51.4 50.4 47.8

.01 .01 .01

[56.4] [56.6] [55.7]

0,1,98 1,2.97 0,1,98

Magnesian Magnesian Magnesian 

calcite calcite calcite

Alaska Continued

454 455 456

50F2 50F2 50F2 

154-81 154-82 154-83

1.0 1.4 0.40

.6 1.05 .4

.30 .41 .27

3.7 4.7 7.3

50.4 48.6 46.8

.01 .01 .01

[56.0] [56.2] [55.2]

0,2,98 0,3,97 0,1,99

Magnesian Magnesian Magnesian 

calcite calcite calcite

418

50F2 

154-39

2.0

.75

.44

4.75

49.1

>.01

'.01

.01

[57.1]

0,3.95

Magnesian 

calcite

431

50F2 

154-58

2.6

1.25

.43

.7

52.4

.01

[57.4]

0,5,95

Calcite

444

50F2 

154-71

0.45

.45

.20

4.0

51.0

.01

[56.1]

0,1.98

Magnesian 

calcite

457

50F2 

154-84

0.40

.45

.31

7.8

46.5

.01

[55.5]

0,1.98

Magnesian 

calcite

419

50F2 

154-45

5.2

2.6

.76

3.3

46.8

.01

[58.7]

0.9.90

Magnesian 

calcite

432

50F2 

154-59

2.15

1.35

.47

1.5

51.5

.01

[57.0]

0,4,95

Calcite

445

50F2 

154-72

0.3

.4

.24

3.7

51.6

.01

[56.2]

0,1,98

Magnesian 

calcite

458

50F2 

154-85

0.70

.75

.31

7.4

46.3

.01

[55.5]

0,1,98

Magnesian 

calcite

420

50F2 

154-46

3.9

.65

3.8

47.4

.01

[57.9]

0,7,93

Magnesian 

calcite

433

50F2 

154-60

3.1

1.45

.43

2.1

50.5

.01

[57.6]

0,5.95

Magnesian

calcite

446

50F2 

154-73

1.1

.5

.23

4.1

50.2

.01

[56.1]

0,2.98

Magnesian 

calcite

459

50F2 

154-86

0.65

.5

.28

5.6

48.7

.01

[55.7]

0,1,98

Magnesian 

calcite

421

50F2 

154-47

3.35

1.85

.55

2.0

49.1

.01

[56.9]

0,6,92

Magnesian 

calcite

434

50F2 

154-61

2.65

.75

.23

1.7

52.3

.01

[57.6]

1,3.95

Calcite

447

50F2 

154-74

0.15

.4

.20

3.8

51.6

.01

[56.2]

0.0,98

Magnesian 

calcite

460

50F2 

154-87

0.40

.45

.34

11.3

42.4

.01

[54.9]

0,1,98

Calcareous 

dolomite

422

50 F2 

154-48

4.5

2.15

.61

2.8

48.1

.01

[58.2]

0,8,92

Magnesian 

calcite

435

50F2 

154-62

2.9

.85

.21

2.6

51.0

'.01

J.01

.01

[57.6]

1,3.95

Magnesian

448

50F2 

154-75

0.40

.5

.26

5.3

50.0

.01

[56.5]

0,1,97

Magnesian 

calcite

461

50F2 

154-88

0.45

.45

.33

6.8

47.5

.01

[55.5]

0,1,98

Magnesian 

calcite

423

50F2 

154-49

4.25

1.8

.57

2.8

48.8

.01

[58.2]

0,7,93

Magnesian 

calcite

436

50F2 

154-63

3.25

1.05

.36

3.9

49.0

.01

[57.6]

1,4,94

Magnesian

449

50F2 

154-76

0.75

.7

.34

3.2

51.2

.01

[56.2]

0,1,98

Magnesian 

calcite

462

50F2 

154-89

0.85

.75

.54

6.1

47.6

.01

[55.8]

0.2,98

Magnesian 

calcite
ANALYSES OF SAMPLES 107

CaO/MgO.

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

Alaska Continued

SiO| _______ .

AljO, .

FejO, .

MgO _______ .

CaO _______ .

SO, .

Total __ .

Class ______ .

463

50FS 

154-90

. __ 0.60

. __ .6

42

. __ 8.9

. __ 45.0

. __ .01

. __ [55.5]

. __ 0.1.97

464

50FS 

154-91

0.65 

.6 

.43 

8.6 

44.9 

.01

[55.2] 

0.1.98

465

50FS 

154-92

0.45 

.5 

.45 

8.1 

45.9 

.01

[55.4] 

0,1.98

466

50FS 

154-93

0.25 

.65 

.34 

9.8 

43.4 

.01

[54.4] 

0.0.98

467

50F» 

154-94

0.65 

.55 

.48 

12.5 

40.4 

.01

[54.6] 

0.1.98

468

50FS 

154-95

0.2 

.40 

.34 

9.6 

44.2 

.01

[54.8] 

0.0.99

469

50F, 

154-96

0.3 

.53 

.35 

6.5 

48.0 

.01

[55.7] 

0.1.98

470

50F2 

154-97

0.3 

.50 

.31 

10.6 

43.6 

.01

[55.3] 

0.1.97

471

50F2 

154-98

0.3 

.45 

.40 

12.8 

41.0 

.01

[55.0] 

0.1.97

472

50F, 

154-99

0.4 

.45 

.30 

12.6 

41.1 

.01

[54.9] 

0.1.98

473

50F2 

154-100

0.2 

.40 

.28 

14.0 

39.3 

.01

[54.2] 

0.0.99

474

50F2 

154-101

0.1 

.50 

.28 

13.5 

40.2 

.01

[54.6] 

0.0.98

475

50FS 

154-102

0.4 

.65 

.28 

10.7 

43.2 

.01

[55.2] 

0.1.98

Magnesian Magnesian Magnesian Magnesian Calcareous Magnesian Magnesian Calcareous Calcareous Calcareous Calcareous Calcareous Calcareous 

calcite calcite calcite calcite dolomite calcite calcite dolomite dolomite dolomite dolomite dolomite dolomite

'Reported as composite.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued Alaska Continued

411-418. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S.. 

R. 7 E., unsurveyed]. southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 

93, 97, 106, 107. 123, figs. 1, 3, 35, 36, 38, 41.) Limestone, black, 

fine-grained; contains calcite veinleti. Total depth of diamond-drill 

hole 200 ft. Index and geologic maps, geologic section*; log of drill 

hole 7. Possible use for deposit: Portland cement; magnesia content 

often high so that complex mining and thorough blending may be required. 

[For other analyses from same drill hole, see sample* 380-410, this group.]

411.

412.

413.

414.

40-45 

35-40 

30-35 

20-30

415.

416.

417.

418.

15-20

10-15

5-10

0- 5

419-475. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 E., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93, 

98, 108, 109. 123, figs. 1, 3, 35-37, 41.) Total depth of diamonddrill hole 395 ft. Index and geologic maps, geologic section; log of 

drill hole 8. Possible use for deposit: Portland cement; magnesia 

content often high so that complex mining and thorough blending may be 

required. [For other analyses from same drill hole, see samples 476-491, 

this group; samples 11-13, group E; samples 59-61, group Fj.]

419-458. Limestone, black, fine-grained; contains few calcite veinlets 

and shale partings.

459-475. Limestone [except where noted] , blue-gray, fine-grained; 

contains calcite veinlets and brown clay like residue.

419.

420.

421.

422.

423.

424.

365-370 

360-365 

355-360 

350-355 

345-350 

335-340

425.

426.

427.

428.

429.

430.

330-335 

325-330 

320-325 

315-320 

310-315 

305-310

459.

460.

461.

462.

463.

464.

465.

466.

467.

468.

469.

470.

471.

472.

473.

474.

475.

160-165 _, _ Limestone.

155-160 __________ [Dolomite.]

150-155 -- __ -_ Limestone.

145-150 

140-145 

135-140 

130-135 

125-130

Do. 

Do. 

Do. 

Do. 

Do.

120-125 _ ____ [Dolomite.]

115-120 __ _____ Limestone.

110-115 ___________ Do.

105-110 _ _________ [Dolomite.]

100-105 

95-100 

90- 95 

85- 90 

80- 85

Do. 

Do. 

Do. 

Do. 

Do.
108 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

SiOj ____________

Al,0, ___________

FejO, ___________

MgO ____________

CaO ____________

SOj ____________

Total _______

Class __________ _

CaO/MgO __

SiOj __ __ __ _

AljOj ___________

MgO ____________

CaO ____________

KjO _____ _ _____

SO3 ____________

Total _______

Class ____________

CaO/MgO _________

SiO, ____________

AljO, ___________

FejOj ___________

MgO ____________

CaO ____________

SOj ___ __

Total _______

Class ____________

CaO/MgO _

SiOj ____________

A120S ___________

FejO, ___________

MgO ____________

CaO ____________

SOj _________ _

Total _______

Class ____________

CaO/MgO _________

476

50F Z 

154-103

0.1

.45

.23

11.6

42.2

.01

[54.6]

0,0,99

Calcareous 

dolomite

489

50F2 

154-116

1.3

.55

.20

1.15

53.6

.01

[56.8]

0,2,97

Calcite

502

50F2 

154-137

3.6

1.06

.34

3.3

49.2

.16

[57.7]

1,4,94

Magnesian

calcite

515

50F2 

154-150

0.6

.36

.34

2.3

52.8

.10

[56.5]

0,1,98

Magnesian

calcite

477

50F2 

154-104

0.5

.60

.31

10.5

43.2

.01

[55.1]

0,1,98

Calcareous 

dolomite

490

50F2 

154-117

0.7

.75

.15

.6

54.6

.01

[56.8]

0,1,98

Calcite

503

50 F2 

154-138

3.1

1.13

.37

3.8

49.0

.34

[57.7]

1,4,94

Magnesian

calcite

516

50F2 

154-151

0.7

.39

.31

3.3

51.8

.10

[56.6]

0,1,97

Magnesian

calcite

478

50F2 

154-105

0.5

.50

.26

11.1

42.6

.01

[55.0]

0,1,98

Calcareous 

dolomite

491

50F2 

154-118

0.5

.45

.23

.45

55.1

'.01

'.01

.01

[56.8]

0.1,98

Calcite

504

50 F2 

154- 139

0.8

.57

.23

2.5

52.2

.19

[56.5]

0,1,98

Magnesian

calcite

517

50F2 

154- 152

0.7

.47

.23

1.5

53.6

.09

[56.6]

0,1,98

Calcite

479

50F2 

154-106

0.6

.70

.34

9.2

44.8

.01

[55.6]

0,1,97

Magnesian 

calcite

492

50F2 

154-125

6.2

2.21

.59

2.8

47.2

.32

[59.3]

2,8,90

Magnesian

calcite

505

50F2 

154-140

0.8

.60

.30

4.6

50.0

.23

[56.5]

0,1.97

Magnesian

calcite

518

50F2 

154- 153

0.8

.39

.31

2.7

52.2

.10

[56.5]

0,1.98

Magnesian

calcite

A laska Continued

480 481 482

50F2 50F2 50F2 

154- 10 7 154-108 154-109

0.6 0.3 0.5

.70 .60 .60

.46 .34 .34

17.1 13.3 10.8

35.6 40.1 43.2

.01 .01 .01

[54.5] [54.6] [55.4]

0,1.97 0,1.98 0,1.97

Calcareous Calcareous Calcareous 

dolomite dolomite dolomite

Alaska Continued

493 494 495

50F2 50F2 50F2 

154-128 154-129 154-130

5.0 6.1 4.4

1.62 1.08 1.82

.58 .32 .78

1.3 .9 .7

50.1 50.3 50.7

.34 .05 .50

'[58.9] [58.8] [58.9]

1.6.92 4.4,92 0,7.92

Calcite Calcite Calcite

A laska Continued

506 507 508

50F2 50Fj 50F, 

154-141 154-142 154-143

0.6 1.0 1.1

.50 .81 .72

.20 .19 .25

3.1 1.6 2.6

51.6 52.8 52.0

.12 .09 .07

[56.1] [56.5] [56.7]

0.1,98 0,2,98 0,2.97

Magnesian Magnesian

calcite calcite

Alaska Continued

519 520 521

50F2 50F2 50F2 

154-154 154-155 154-156

0.8 0.9 0.9

.49 .34 .51

.31 .26 .29

4.8 6.2 5.6

49.8 48.4 49.4

.09 .09 .09

[56.3] [56.2] [56.8]

0,1.97 0,2.97 0.2.96

Magnesian Magnesian Magnesian

calcite calcite calcite

483

50F2 

154-110

0.6

.95

.37

6.45

47.3

.01

[55.7]

0,1,98

Magnesian 

calcite

496

50F2 

154-131

3.2

.93

.47

1.2

51.9

.16

[57.9]

1,4.95

Calcite

509

50 F, 

154- 144

1.4

.76

.34

2.9

51.2

.10

[56.7]

0,3,97

Magnesian

calcite

522

50F2 

154-157

0.9

.34

.26

2.5

52.2

.08

[56.3]

0.2.98

Magnesian

484

50F2 

154-111

0.5

1.30

.28

3.6

51.0

.01

[56.7]

0,1,97

Magnesian 

calcite

497

50F2 

154-132

3.6

1.34

.26

3.7

49.1

.21

[58.2]

1.5,93

Magnesian

calcite

510

50F, 

154-145

1.6

.61

.29

2.5

51.6

.10

[56.7]

0,3.97

Magnesian

523

50F2 

154-158

1.5

.49

.31

3.8

51.0

.08

[57.2]

0,2,95

Magnesian

485

50F2 

154-112

1.3

1.30

.37

.4

53.6

.01

[57.0]

0,2,97

Calcite

498

50F2 

154-133

3.3

1.28

.42

2.8

49.3

.32

[57.4]

1,5.94

Magnesian

calcite

511

50F, 

154-146

2.4

.54

.26

5.1

48.4

.12

[56.8]

1,2,96

Magnesian

524

50F2 

154-159

0.7

.49

.31

3.7

51.4

.08

[56.7]

0,1,97

Magnesian

486

50F2 

154-113

2.3

1.70

.60

1.1

52.4

.01

[58.1]

0,4,94

Calcite

499

50F2 

154-134

3.9

1.33

.37

4.8

46.8

.22

[57.4]

1,5,94

Magnesian

calcite

512

50F, 

154-147

1.1

.54

.26

4.1

50.2

.10

[56.3]

0.2,97

Magnesian

525

50F2 

154-160

1.1

.69

.31

4.8

50.0

.07

[57.0]

0.2,96

Magnesian

487

50F2 

154-114

3.4

2.35

.83

3.3

48.4

.01

[58.3]

0,6,92

Magnesian 

calcite

500

50F2 

154-135

4.3

1.87

.53

4.9

46.0

.49

[58.1]

0.7.92

Magnesian

calcite

513

50F2 

154-148

1.4

.47

.23

2.3

52.4

.11

[56.9]

0.2,97

Magnesian

526

50 F2 

154-161

0.9

.63

.37

7.7

45.4

.08

[55.1]

0,2,97

Magnesian

488

50F2 

154-115

1.7

.55

.23

1.4

53.0

.01

[56.9]

0,2,97

Calcite

501

50F2 

154-136

4.3

1.03

.37

5.4

46.6

.20

[57.9]

2.4,93

Magnesian

calcite

514

50F2 

154-149

1.0

.47

.23

1.4

53.6

.10

[56.8]

0,2,97

Calcite

527

50F2 

154-162

0.5

.34

.26

8.7

46.0

.09

[55.9]

0,1,97

Magnesian
ANALYSES OF SAMPLES 109

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft), common-rock category Continued

Chemical analyses Continued

Alaska Continued

SiOj ______ .

AltO, _______ .

FejO, .

MeO _______ .

CaO _______ .

SO, .

Total __ .

Class ______ .

CaO/MgO ___ _.

528

50Ft 

154-163

___ 0.6

___ .69

___ .31

___ 6.3

___ 48.5

___ .08

. __ [56.5]

___ 0.1.96

Magnesian

calcite

529

50F, 

154-164

1.0 

.64 

.46 

9.4 

44.7 

.08

[56.3] 

0,2,96

Magnesian 

calcite

530

50F, 

154-165

1.1 

.44 

.46 

9.0 

45.2 

.09

[56.3] 

0,2,96

Magnesian 

calcite

531

50F, 

154-166

1.0 

.87 

.43 

4.8 

49.7 

.08

[56.9] 

0,2.96

Magnesian 

calcite

532 533

50F, 50 Ft 

154-167 154-168

1.3 0.6 

.81 .39 

.49 .31 

6.2 7.7 

47.5 47.0 

.09 .09

[56.4] [56.1] 

0,2,96 0,1.97

Magnesian Magnesian 

calcite calcite

534

50F, 

154-169

0.8 

.41 

.49 

7.2 

47.2 

.09

[56.2] 

0,2.97

Magnesian 

calcite

535

50F, 

154-170

0.7 

.26 

.34 

4.9 

49.4 

.09

[55.7] 

0,1,98

Magnesian 

calcite

536

50F, 

154-171

0.8 

.51 

.29 

5.3 

49.4 

.07

[56.4] 

0.1.97

Magnesian 

calcite

537

50F, 

154-172

0.8 

.40 

.40 

9.8 

44.6 

.08

[56.1] 

0,1,96

Magnesian 

calcite

538

50F, 

154-173

1.1 

.74 

.46 

6.4 

48.0 

.08

[56.8] 

0,2.95

Magnesian 

calcite

539

50F, 

154-174

2.8 

.81 

.49 

1.2 

54.0 

.08

[59.4] 

1.4.91

Calcite

540

50 F, 

154-175

3.0 

2.20 

.40 

2.3 

51.6 

.07

[59.6] 

0.5,90

Magnesian 

calcite

Reported as composite. 

'NajO, 0.30 percent; KtO, 0.18 percent; 

composite of 0-548 ft.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

476-491. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 

93, 98, J107. JU>8, 123, figs. 1, 3, 35-37. 42.) Total depth of diamonddrill hole 395 ft. Index and geologic maps, geologic section, log of 

drill hole 8. Possible use for deposit: Portland cement, magnesia content 

often high so that complex mining and thorough blending may be required. 

[For other analyses from same drill hole, see samples 419-475, this group; 

samples 11-13, group E; samples 59-61, group Fj.]

476. Depth(ft)

77-80 _______ [Dolomite] limestone, blue-gray, finegrained; contains few calcite veinleu 

and brown clay like residue.

75-77 _______ [Dolomite] limestone, black, finegrained; contains few calcite veinlets.

477 - 483. Limestone [except where noted], black, fine-grained: 

contains very few calcite veinlets.

477. 70-75 ___________ [Dolomite.]

478. 65-70 ____________ Limestone.

479. 60-65 ____________ Do.

480. 55-60 ___________ [Dolomite.]

481. 50-55 ____________ Do.

482. 45-50 ____________ Do.

483. 40-45 ____________ Limestone.

484.

485-491.

38-40 _______ Limestone, black, fine-grained; contains few calcite veinlets.

35-38 _______ Limestone, blue-gray, fine-grained;

contains few calcite veinlets and 

some clay like residue.

Limestone, blue-gray, fine-grained; contains calcite veinlets 

and some clay like residue. 

Depth (ft)

485. 30-35

486. 25-30

487. 20-25

488. 15-20

492-540. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 

93. 98, 99, 110-112, 123, figs. 1, 3. 35, 36, 39. 41.) Total depth of 

diamond-drill hole 620 ft. Index and geologic maps, geologic section, 

log of drill hole 9. Possible use for deposit: Portland cement, magnesia 

content often high so that complex mining and thorough blending may be 

required. [For other analyses from same drill hole, see samples 541-608,

Alaska Continued

this group; samples 23-25, group B; samples 4, 5, group C; sample 14, 

group E; samples 62, 63, group F t.]

492. Limestone, dark-gray; contains calcite veinlets. Depth 

555-560 ft.

493 - 496. Limestone, gray; contains some calcite veinlets and some 

brown clay like residue.

Depth (ft) Depth (ft)

493.

494.

543-548 

540-543

495.

496.

535-540 

530-535

497- 503. Limestone, dark-gray; contains calcite veinlets and some 

shale partings.

504.

492-495 _______ Limestone, white, coarsely granular;

contains calcite veinleu. 

490-492 _______ Limestone, dark-gray to black;

contains calcite veinleu.

505 - 508. Limestone, dark-gray to black; contains calcite veinlets. 

Depth (ft) Depth (ft)

505.

506.

485-490 

480-485

507.

508.

475-480 

470-475

509-540. Limestone, medium- to dark-gray; contains calcite veinleu; 

some stain.

525.

526.

527.

528.

529.

530.

531.

532.

533.

534.

535.

536.

537.

538.

539.

540.

385-390

380-385

375-380

368-375

365-368

360-365

355-360

350-355

345-350

340-345

335-340

330-335

325-330

320-325

315-320

310-315

487-187 O - 73 - 8
110 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group ft), common-rock category Continued

SiO, .

A 1-TV

Fc.n.

MgO _________

CaO _______ .

SO, _______ .

Total ___

Class _________

CaO/MgO ____ .

SiOj .

A1.0, .

Fo.n.

MgO ______ .

CaO _______ .

SO, _______ .

Total __ .

Class _______ .

CaO/MgO ____ .

SiOj .

A1.0, .

Fe.0, .

McO

CaO _______ .

SO, ___ _.

Total __ .

Class ______ .

CaO/MgO ____ .

SiOj __ _ _ .

A1.0, .

F*»*n_.

McO

CaO __ ____ .

SO, _______ .

Total __ .

Class _______ .

CaO/MgO_____.

541

50F, 

154-176

. __ 2.8

. __ .46

. __ .34

. __ 1.4

. __ 52.6

. __ .07

. [57.73

. __ 2.2.95

. __ Calcite

554

50F, 

154-189

. __ 1.1

. __ .53

. __ .57

. __ 13.9

___ 38.8

. __ .12

. __ [55.0]

. __ 0,2.97

Calcareous

dolomite

567

50Fj 

154-202

___ 2.1

. __ .74

___ .46

___ 7.0

___ 46.4

___ .02

. [56.7]

. 0.3.95

Magnesian

calcite

580

50F2 

154-215

___ 2.8

___ .89

___ .31

___ 5.1

___ 47.9

___ .07

. [57.1]

___ 1.3,95

Magnesian

calcite

542

50F, 

154-177

1.3

.51

.29

.4

54.7

.07

[57.3]

0.2.97

Calcite

555

50 Fj 

154-190

0.8

.51

.49

8.3

45.8

.02

[55.9]

0.1.97

Magnesian

calcite

568

50F2 

154-203

1.1

.44

.26

2.8

51.6

.02

[56.2]

0.2.98

Magnesian

calcite

581

50F2 

154-216

2.7

.86

.34

3.6

49.6

.07

[57.2]

1,3.95

Magnesian

calcite

543

50FZ 

154-178

1.3

.64

.66

6.2

47.9

.07

[56.8]

0.2.95

Magnesian

calcite

556

50F, 

154-191

0.9

.53

.37

7.9

46.0

.02

[55.7]

0.2.97

Magnesian

calcite

569

50F2 

154-204

1.2

.67

.43

6.7

47.0

.01

[56.0]

0.2,97

Magnesian

calcite

582

50F2 

154-217

2.0

.61

.29

3.2

51.2

.08

[57.4]

1.3,95

Magnesian

calcite

544

50F, 

154-179

0.9

.48

.26

2.1

53.1

.07

[56.9]

0,2,97

Magnesian

calcite

557

50F2 

154-192

0.4

.36

.34

10.6

43.8

.04

[55.5]

0,1.97

Calcareous

dolomite

570

50F2 

154-205

0.8

.54

.26

6.2

48.2

.01

[56.0]

0,1.97

Magnesian

calcite

583

50F2 

154-218

2.2

.50

.20

2.3

51.7

.08

[57.0]

1,2.97

Magnesian

calcite

Chemical analyses Continued

Alaska Continued

545 546 547

50F, 50F, 50F, 

154-180 154-181 154-182

0.6 0.6 0.4

.31 .37 .33

.29 .43 .37

5.1 10.4 6.8

50.1 43.8 47.8

.06 .06 .04

[56.5] [55.7] [55.7]

0.1.97 0,1.97 0.1,98

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

558 559 560

50F, 50F, 50F2 

154-193 154-194 154-195

0.4 0.9 1.2

.57 .67 .77

.23 .43 .43

9.8 8.5 8.7

44.6 45.4 44.6

.02 .01 .03

[55.6] [55.9] [55.7]

0.1,97 0.2.97 0.2,97

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

571 572 573

50F, 50F2 50F2 

154-206 154-207 154-208

1.4 3.1 2.5

.63 .94 .91

.17 .26 .29

4.2 3.5 2.9

50.2 50.0 50.6

.01 .02 .02

[56.6] [57.8] [57.2]

0,2,97 1,3.94 1.3,95

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

584 585 586

50F2 50F2 50F2 

154-219 154-220 154-221

2.7 3.9 2.2

.23 .29 .26

.17 .11 .14

1.2 1.1 3.9

53.2 52.4 50.4

.07 .06 .05

[57.6] [57.9] [57.0]

2.1.96 3.1.95 2.1.96

_ , _ Magnesian Calcite Calcite 6

calcite

548

50Fi 

154-183

0.4

.50

.40

8.3

46.4

.06

[56.1]

0.1.97

Magnesian

calcite

561

50F, 

154-196

2.2

1.04

.46

5.9

47.2

.05

[56.8]

0.4.95

Magnesian

calcite

574

50Fj 

154-209

5.5

1.16

.54

4.1

48.8

.05

[60.2]

3,5.88

Magnesian

calcite

587

50F2 

154-222

1.2

.33

.17

4.7

50.0

.04

[56.4]

0,1.97

Magnesian

calcite

549

50F2 

154-184

0.5

.41

.49

8.8

45.6

.08

[55.9]

0,1.97

Magnesian

calcite

562

50F, 

154-197

1.4

.56

.34

3.0

51.0

.02

[56.3]

0,2,97

Magnesian

calcite

575

50F2 

154-210

2.4

.73

.37

3.9

49.6

.11

[57.1]

1,3,95

Magnesian

calcite

588

50F2 

154-223

1.0

.33

.17

6.7

48.0

.03

[56.2]

0.1.97

Magnesian

calcite

550

50F2 

154-185

0.6

.41

.49

7.4

46.9

.10

[55.9]

0,1.97

Magnesian

calcite

563

50F2 

154-198

1.3

.69

.31

6.3

47.4

.05

[56.0]

0.2.97

Magnesian

576

50F2 

154-211

1.8

.79

.31

4.4

49.5

.09

[56.9]

0.3,96

Magnesian

calcite

589

50F, 

154-224

0.6

.21

.09

1.3

54.8

.03

[57.0]

0.1.97

Calcite

551

50F2 

154-186

0.6

.44

.46

10.5

43.6

.13

[55.7]

0.1.96

Calcareous

dolomite

564

50Ft 

154-199

1.1

.73

.37

8.9

45.0

.04

[56.1]

0.2.96

Magnesian

calcite

577

50F2 

154-212

2.0

.67

.23

3.8

50.0

.08

[56.8]

1.3,96

Magnesian

calcite

590

50Ft 

154-225

0.5

.21

.09

.5

55.7

.03

[57.0]

0.1.97

Calcite

552

50F2 

154-187

0.8

.54

.46

10.7

42.8

.14

[55.4]

0,1,97

Calcareous

dolomite

565

50F, 

154-200

2.0

.91

.49

5.9

47.0

.02

[56.3]

0,4.96

Magnesian

578

50F2 

154-213

2.7

.31

.09

1.2

53.0

.07

[57.4]

2,1,96

Calcite

591

50F, 

154-226

0.5

.21

.09

1.4

54.8

.04

[57.0]

0,1.97

Calcite

553

50F2 

154-188

1.0

.48

.52

8.7

43.4

.14

[54.2]

0,2,96

Magnesian

calcite

566

50F, 

154-201

1.9

.86

.54

6.5

46.6

.02

[56.4]

0,3,96

Magnesian

579

50F2 

154-214

3.1

.53

.17

1.6

51.9

.06

[57.4]

2,2.96

Calcite

592

50F2 

154-227

1.1

.39

.21

3.9

51.4

.05

[57.0]

0.2.96

Magnesian
ANALYSES OF SAMPLES 111

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group ft), common-rock category Continued

Chemical analyses Continued

Alaska Continued

SiO, ______

AljO, _____

FejO, 

MgO ______

CaO ______

SO, _______

593

50F2 

154-228

_____ 1.2

_____ .38

_____ .32

_____ 5.1

_____ 49.8

_____ .05

594

50F;

154-229

1.1

.27 

.13 

2.2 

53.0 

.05

595

50F2 

154-230

1.2 

.38 

.22 

4.2 

50.6 

.05

596

50F2 

154-231

1.1

.58 

.22 

4.1 

50.8 

.05

597 598

50F2 50F2 

154-232 154-233

1.1 1.0 

.46 .42 

.34 .18 

5.5 2.4 

49.0 52.4 

.05 .05

599

50F2 

154-234

0.7 

.40 

.20 

2.3 

53.0 

.05

600

50F2 

154-235

1.9 

.44 

.16 

3.0 

51.6 

.05

601

50F2 

154-236

3.7 

.63 

.27 

2.0 

51.2 

.05

602

50F2 

154-237

1.0 

.43 

.17 

.9 

54.4 

.05

603

50F2 

154-238

0.6 

.46 

.14 

.3 

54.8 

.05

604

50F, 

154-239

0.7 

.39 

.11 

.4 

55.0 

.03

605

50F2 

154-240

1.0 

.37 

.13 

.7 

54.8 

.02

Total______ [56.8] [56.8] [56.6] [56.8] [56.4] [56.4] [56.6] [57.2] [57.8] [57.0] [56.4] [56.6] [57.0]

Class ___ __ .__

CaO/MgO ___ .

. ___ 0.2.96

Magnesian

 calcite

0.1,97

Magnesian

calcite

0.2,97

Magnesian

calcite

0.2.96 0,2,97 0,2,98

Magnesian Magnesian Magnesian

calcite calcite calcite

0.1.97

Magnesian

calcite

1,2,96

Magnesian

calcite

2,3.95

Magnesian

calcite

0,2,97

Calcite

0,1,98

Calcite

0,1,98

Calcite

0.1.97

Calcite

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

541-605. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93, 

98, 99, 109, 110. 123, figs. 1, 3. 35. 36. 39, 41.) Total depth of 

diamond-drill hole 620 ft. Index and geologic maps, geologic section, 

log of drill hole 9. Possible use for deposit: Portland cement, magnesia 

content often high so that complex mining and thorough blending may be 

required. [For other analyses from same drill hole, see samples 492-540, 

606-608, this group; samples 23-25, group B; samples 4, 5, group C; 

sample 14, group E; samples 62, 63, group Fj.]

541 - 559. Limestone [except where noted], medium- to dark-gray; 

contains calcite veinleu; some stain.

Alaska Continued

563, 564. Limestone, dark-gray, fine-grained; contains calcite veinlets 

and some brown clay like residue.

563. Depth 206-211 ft.

564. Depth 204-206 ft.

565- 568. Limestone, dark-gray, fine-grained; contains calcite veinlets 

and some yellowish brown clay like residne.

565. 200 -204

566. 197.6-200

567. 194-197.6

568. 188-194

569-584. Limestone, black, fine-grained; contains calcite veinlets 

and grayish brown claylike residue.

541.

542.

543.

544.

545.

546.

547.

548.

549.

550.

551.

552.

553.

554.

555.

556.

557.

558.

559.

305 -310

300 -305

295 -300 _ _

290 -295

285 -290 ___

280 -285 _ _

273 -280 ___

270 -273 ____

266.5-270 ____

265 -266.5-

260 -265

254.5-260 _ _

251.6-254.5 _

250 -251.6

245 -250

240 -245

235 -240 _

230 -235

228 -230

Limestone.

_-_ Do.

_ _ Do.

Do.

_-__ Do.

____ Do.

- -_ Do.

Do.

Do.

Do.

[Calcareous dolomite.]

Do.

Limestone.

[Calcareous dolomite.]

Limestone.

Do.

[Calcareous dolomite.]

- Limestone .

Do.

560- 562. Limestone, gray; contains few calcite veinlets and small 

amount of gray brown shale.

560. Depth 224-228 ft.

561. Depth 215-224 ft.

562. Depth 211-215 ft.

576. 150-154

577.

578.

579.

580.

581.

582.

583.

584.

144-150 

140-144 

134-140 

130-134 

124-130 

120-124 

115-120 

114-115

585 - 605. Limestone, dark-gray, fine-grained; contains calcite veinlets 

and brown claylike residue.

585.

586.

587.

588.

589.

590.

591.

592.

593.

594.

595.

109-114 

104-109 

100-104 

95-100 

90- 95 

84- 90 

79- 84 

74- 79 

69- 74 

64- 69 

61- 64

596.

597.

598.

599.

600.

601.

602.

603.

604.

605.

59-61 

54-59 

47-54 

44-47 

39-44 

34-39 

29-34 

26-29 

20-26 

16-20
112 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group F^ common-rock category Continued

Chemical analyses Continued

SiO2 ____________

A120, ___________

Fe 20, ___________

MgO ____________

CaO ____________

SO, ____________

Class ____________

CaO/MgO _________

SiOj ____________

A120, ___________

Fe20, ___________

MgO ____________

CaO ____________

SO, ____________

Total _______

CaO/MgO _________

SiOj ____________

A120, 

Fp«n.

MgO ____________

CaO ____________

SO, __ __________

Class ____________

CaO/MgO _________

Si02 ____ _____ _

Al,0, ___________

Fe20, ___________

MgO ____________

CaO __ ____ _

SO, ___ __ _ ____

CaO/MgO ___ __

606

50F2 

154-241

1.1

.36

.24

1.7

53.6

.02

[57.0]

0,2.97

619

50Fj 

154-254

6.3

.98

.32

.9

50.0

.03

[58.5]

4,4.91

632

50Fj 

154-267

4.0

.87

.43

5.1

47.8

.04

[58.2]

2,4,92

Magnesian 

calcite

645

50F2 

154-280

0.8

.54

.43

8.5

45.4

.01

[55.7]

0,1,97

Magnesian

calcite

607

50 Fz 

154-242

0.8

.52

.18

.5

55.1

.02

[57.1]

0,1,97

620

50 F2 

154-255

2.1

.86

.34

2.7

51.0

.02

[57.0]

0,3,96

Magnesian

calcite

633

50F2 

154-268

4.0

.84

.46

4.8

47.6

.07

[57.8]

2,4,93

Magnesian 

calcite

646

50F2 

154-281

1.0

.87

.43

6.2

47.8

.02

[56.3]

0,2,97

Magnesian

calcite

608

50F2 

154-243

2.2

.9

.40

3.2

50.6

.02

[57.3]

0,4,95

Magnesian

calcite

621

50F2 

154-256

5.8

.91

.29

2.5

49.2

.02

[58.7]

4,3,92

Magnesian

calcite

634

50 F2 

154-269

4.6

.78

.32

5.9

46.4

.03

[58.0]

3,3,93

Magnesian 

calcite

647

50F2 

154-282

0.6

.54

.46

9.7

44.2

.03

[55.5]

0.1.97

Magnesian

calcite

609

50F2 

154-244

0.3

.13

.37

1.4

51.6

.01

[53.8]

0,1,95

622

50 F2 

154-257

2.7

.70

.40

3.8

50.0

.03

[57.6]

1,3.94

Magnesian

calcite

635

50F2 

154-270

6.2

.80

.40

5.7

45.4

.03

[58.5]

4,3,91

Magnesian 

calcite

648

50F2 

154-283

0.7

.51

.49

9.3

44.8

.02

[55.8]

0.1,97

Magnesian

calcite

Alaska Continued

610 611 612

50F2 50F2 50F2 

154-245 154-246 154-247

4.6 2.3 3.0

1.59 1.16 5.81

.51 .34 .69

1.7 1.1 .7

49.6 51.6 51.0

.01 .01 .05

[58.0] [56.5] [61.2]

1.6,92 0.4,94 0,5,87

Calcite Calcite Calcite

Alaska Continued

623 624 625

50F2 50F2 50F2 

154-258 154-259 154-260

0.6 1.7 0.8

.46 .90 .61

.34 .40 .29

4.3 2.8 5.1

50.4 51.4 49.2

.03 .03 .02

[56.1] [57.2] [56.0]

0,1.98 0,3,96 0,1.98

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

636 637 638

50F2 50F2 50F2 

154-271 154-272 154-273

3.9 2.2 1.1

2.00 .67 .61

1.10 .63 .49

3.6 8.6 8.9

47.6 44.0 44.8

.02 .02 .03

[58.2] [56.1] [55.9]

0,7,92 0,4,96 0,2,96

Magnesian Magnesian Magnesian 

calcite calcite calcite

Alaska Continued

649 650 651

50F2 50F2 50F2 

155-4 155-5 155-6

2.5 1.8 5.2

.24 .24 1.33

.26 .26 .57

.4 1.4 4.4

53.4 53.2 47.8

.01 .03 .04

'[56.8] [56.9] [59.3]

2,1,96 1,1,97 2,5,90

Magnesian Calcite Calcite 6 , . calcite

613

50F2 

154-248

2.1

1.43

.37

.9

51.6

.04

[56.4]

0,4,94

Calcite

626

50F2 

154-261

1.5

.53

.37

3.7

50.8

.03

[56.9]

0,2,96

Magnesian

calcite

639

50F2 

154-274

1.5

.41

.29

6.6

47.4

.02

[56.2]

0,2.97

Magnesian 

calcite

652

50F2 

155-7

1.7

.19

.31

.4

53.6

.03

[56.2]

1,1,97

Calcite

614

50Fj 

154-249

5.6

2.20

.60

2.3

48.4

.03

[59.1]

1,8,90

Magnesian

calcite

627

50F2 

154-262

0.6

.41

.29

3.4

51.8

.03

[56.5]

0,1,97

Magnesian

calcite

640

50F2 

154-275

2.3

.56

.34

7.8

45.4

.02

[56.4]

1.2,96

Magnesian 

calcite

653

50F2 

155-8

0.6

5.47

.43

.4

52.4

.02

[59.3]

0,1.92

Calcite

615

50F2 

154-250

4.6

1.11

.29

2.5

49.6

.03

[58.1]

2,4,93

Magnesian

calcite

628

50F2 

154-263

0.4

.50

.20

3.3

52.0

.02

[56.4]

0,1,98

Magnesian

calcite

641

50F2 

154-276

1.1

.46

.34

8.3

45.4

.03

[55.6]

0,2,97

Magnesian 

calcite

654

50F2 

155-9

3.6

.66

.34

.4

52.8

.02

[57.8]

2,3,95

Calcite

616

50F2 

154-251

4.6

.81

.29

2.7

49.8

.03

[58.2]

3.3.93

Magnesian

calcite

629

50F2 

154-264

0.9

.68

.32

5.2

49.4

.02

[56.5]

0,2,97

Magnesian

calcite

642

50F2 

154-277

1.4

.58

.32

8.5

45.2

.03

[56.0]

0,3,96

Magnesian 

calcite

655

50F2 

155-10

5.3

1.90

.80

.3

50.2

.02

[58.5]

1,8,90

Calcite

617

50 F2 

154-252

4.3

.81

.29

3.0

49.8

.02

[58.2]

3,3,93

Magnesian

calcite

630

50F2 

154-265

2.0

.71

.29

5.3

48.8

.03

[57.1]

0,3,95

Magnesian

calcite

643

50F2 

154-278

0.7

.48

.32

9.4

44.4

.02

[55.3]

0,1,98

Magnesian 

calcite

656

50F2 

155-11

5.2

1.44

.66

.9

50.4

.04

[58.6]

2,6,92

Calcite

618

50F2 

154-253

5.2

1.03

.37

1.1

51.0

.03

[58.7]

3,4,93

Calcite

631

50F2 

154-266

2.0

.47

.23

3.9

49.8

.02

[56.4]

1,2.97

Magnesian

calcite

644

50F2 

154-279

0.6

.40

.40

7.6

47.0

.01

[56.0]

0.1,97

Magnesian 

calcite

657

50F2 

155-12

2.4

.81

.29

1.4

52.4

.03

[57.3]

1,3,96

Calcite
ANALYSES OF SAMPLES 113

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft), common-rock category-Continued

Chemical analyses-Continued

Alaska Continued

SiO, _________

AltO, ________

Fe,0, ________

MgO _________

CaO _________

SO, _________

Total ___

Class _________

658

50 Ft 

155-13

___ 2.5

___ .67

___ .23

___ 3.7

___ 50.4

___ .02

_ [57.5]

___ 1.3,95

659

50FS 

155-14

5.1 

.81 

.29 

4.6 

47.4 

.02

[58.2] 

3.3.93

£60

50 F2 

155-15

2.9 

.67 

.23 

4.4 

49.0 

.02

[57.2] 

1.3,95

661

50F2 

155-16

2.5 

.61 

.29 

4.2 

49.2 

.02

[56.8] 

1,3.96

662

50F, 

155-17

2.7 

.60 

.20 

3.3 

50.8 

.02

[57.6] 

1.2.95

663

50F, 

155-18

2.0 

.79 

.31 

5.2 

48.6 

.02

[56.9] 

0.3.95

664

50FS 

155-19

1.1 

.50 

.20 

3.4 

51.6 

.02

[56.8] 

0,2,96

665

50F, 

155-20

2.0 

.57 

.23 

1.8 

52.4 

.01

[57.0] 

1.2.97

666

50 F, 

155-21

1.1 

.61 

.29 

5.9 

48.6 

.03

[56.5] 

0.2.96

667

50F, 

155-22

2.8 

.56 

.34 

3.8 

49.8 

.01

[57.3] 

1.2.95

668

50FS 

155-23

0.5 

.46 

.34 

8.6 

46.0 

.02

[55.9] 

0,1.97

669

50FS 

155-24

0.5 

.51 

.29 

6.0 

49.0 

.01

[56.3] 

0,1,97

67&-

50 Ft 

155-25

0.5 

.43 

.17 

3.2 

52.6 

.01

[56.9] 

0,1,97

CaO/MgO _________

Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian Magnesian

Calcite calcite calcite calcite calcite calcite calcite calcite calcite calcite calcite calcite calcite

1 NatO, 0.050 percent .KjO. 0.15 percent; composite of 0-270 ft.

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Alaska Continued

606-608. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93, 

98, 99, 109, 123, figs. 1, 3, 35, 36, 39, 41.) Limestone, dark-gray, 

fine-grained; contains calcite veinlets and brown clay like residue. Total 

depth of diamond-drill hole 620 ft. Index and geologic maps, geologic 

section, log of drill hole 9. Possible use for deposit: Portland cement, 

magnesia content often high so that complex mining and thorough 

blending may be required. [For other analyses from same drill hole, see 

samples 492-605. this group; samples 23-25, group B; samples 4, 5, 

group C; sample 13, group EI samples 62, 63, group FI.]

606. Depth 13.9-16 ft.

607. Depth 12-13.9 ft.

608. Depth 0-12 ft.

609-648. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S.. 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 

93, 100, 112. 113, 123, figs. 1, 3, 35, 36. 39, 41.) Total depth of 

diamond-drill hole 196 ft. Index and geologic maps, geologic section, 

log of drill hole 10. Possible use for deposit: Portland cement, magnesia 

content often high so that complex mining and thorough blending may be 

required.

609- 624. Limestone, black; contains calcite veinlets and yellow brown 

earthy residue.

625- 628. Limestone, dark-gray; contains calcite veinlets. 

Depth (ft) Depth (ft)

625.

626.

114-119 

109-114

627.

628.

629.

97-99 _______ Limestone, dark-gray; contains calcite

veinlets. 

94-97 _______ Limestone, black.

630-635. Limestone, black.

Depth (ft)

630.

631.

632.

89-94 

84-89 

79-84

633.

634.

635.

74-79 

69-74 

64-69

Alaska Continued

636.

61-64 _____ Limestone, black.

60-61 _______ Earthy gouge, yellow-brown, plastic.

59-60 _______ Limestone, black, fine-grained; contains

calcite veinlets and some yellow brown

earthy residue.

Limestone, black, fine-grained; some earthy residue; part 

contains calcite veinlets, part contains siliceous veinlets. 

Depth 54-59 ft.

638 - 648. Limestone, black, fine-grained; contains calcite veinlets and 

some yellow brown earthy residue.

637.

638.

639.

640.

641.

642.

643.

49-54 

44-49 

39-44 

34-39 

29-34 

24-29

649-670. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953. p. 4, 91. 93, 

100, 101, 113, 114. 123, figs. 1, 3. 35. 36, 40, 41.) Total depth of 

diamond-drill hole 284 ft. Index and geologic maps, geologic section, 

log of drill hole 11. Possible use for deposit: Portland cement, magnesia 

content often high so that complex mining and thorough blending may be 

required. [For other analyses from same drill hole, see samples 671-702, 

this group; sample 6, group C; sample 15, group E; sample 64, group FI.]

649- 654. Limestone, black, fine-grained; contains very little calcite.

649. 265-270

650. 260-265

651. 255-260

655, 656. Limestone, black; some weathering; contains yellow brown 

earthy residue.

655. Depth 234-240 ft.

656. Depth 228-234 ft.

657- 670. Limestone, black, fine-grained; contains calcite veinlets and 

some yellowish brown earthy residue.
114 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Si02 .

Al,0, .

FO.D.

MgO .

CaO _______ .

SO, .

Total __ .

Class ______ .

CaO/MgO ____ .

SiOj .

AljO, .

Fe,0, .

MgO .

CaO _______ .

SO.

Total __ .

Class ______ .

CaO/MgO ____ .

SiOj

Al,0, .

FejO, .

MgO .

CaO _______ .

SO, .

Class ______ .

CaO/MgO _.

SK>! _________

Al,0, ________

Fe»O, ________

MgO _________

CaO _________

SO, _________

Total __

Class ______ .

CaO/MgO ______

671

60Ft 

155-26

___ 0.5

___ .64

___ .26

___ 6.7

___ 47.8

___ .03

- __ [55.93

.___ 0,1.97

Magnesian

 calcite

684

50Fj 

155-39

___ 1.0

___ .54

___ .26

___ 5.1

___ 49.6

___ .01

___ [56.5]

___ 0.2.97

Magnesian

calcite

697

50F, 

155-52

.___ 1.0

.___ .54

.___ .46

.___ 5.1

-___ 49.0

.___ .01

. [56.1]

.___ 0,2,97

Magnesian

calcite

710

50F» 

155-65

__ 3.9

__ 1.29

__ .31

__ 2.5

__ 49.8

__ .01

[57.8]

.__ 1,5,94

Magnesian

calcite 

672

50Fj 

155-27

0.4

.47

.23

6.5

48.8

.01

[56.4]

0,1,97

Magnesian

calcite

685

50F, 

155-40

1.1

.74

.26

5.4

49.0

.01

[56.5]

0,2,96

Magnesian

calcite

698

50F» 

155-53

0.4

.23

.37

8.6

45.8

.02

[55.4]

0.1,98

Magnesian

calcite

711

50FZ 

155-66

4.4

.64

.26

2.0

50.2

.01

[57.5]

3.3,94

Magnesian

calcite

673

50F, 

155-28

0.6

.30

.20

5.0

50.0

.01

[56.1]

0,1,98

Magnesian

calcite

686

50F, 

155-41

1.2

.47

.23

5.7

49.0

.01

[56.6]

0,2,96

Magnesian

calcite

699

50F, 

155-54

0.8

.57

.23

5.7

48.8

.01

[56.1]

0,1,97

Magnesian

calcite

712

50Fj 

155-67

2.9

.73

.37

1.8

51.2

.01

[57.0]

1,3,95

Calcite

674

50F, 

155-29

0.9

.33

.17

2.5

52.6

.01

[56.5]

0,1,98

Magnesian

calcite

687

50Ft 

155-42

1.7

.64

.46

4.4

49.8

.01

[57.0]

0.3,95

Magnesian

calcite

700

50F» 

155-55

0.5

.50

.20

7.9

46.6

.01

[55.7]

0,1.98

Magnesian

calcite

713

50F» 

155-68

4.9

.61

.29

1.3

51.0

.01

[58.1]

3,3,94

Calcite

Chemical analyses Continued

Alaska Continued

675 676 677

50Ft 56Fj 50F» 

155-30 155-31 155-32

0.9 1.1 1.6

.53 .67 .64

.17 .23 .26

3.3 3.6 5.7

52.0 51.0 48.4

.01 .01 .01

[56.9] [56.6] [56.6]

0,2.96 0,2.97" 0,3,96

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

688 689 690

50Fj 50Fj 50Ft 

155-43 155-44 155-45

1.8 2.3 1.7

.51 .64 .40

.49 .46 .40

7.4 7.8 9.3

46.2 45.0 44.0

.01 .01 .03

[56.4] [56.2] [55.8]

0.3.96 1.3.96 1,2,96

Magnesian Magnesian Magnesian

calcite calcite calcite

Alaska Continued

701 702 703

50Fj 50Fj 50Ft 

155-56 155-57 155-58

3.9 0.4 5.4

1.00 .46 2.39

.20 .34 .71

7.8 9.6 1.4

47.0 44.4 49.0

.01 .02 .05

[59.9] [55.2] '[59.0]

2,3,88 0.1,98 0.9,90

Magnesian Magnesian Calcite

calcite calcite

Alaska Continued

714 715 716

50F» 50Ft 50F» 

155-69 155-70 155-71

2.5 1.0 4.0

.43 .44 2.20

.17 .26 1.00

1.6 1.2 3.4

52.2 53.6 47.6

.01 .01 .04

[56.9] [56.5] [58.2]

2,2,96 0.2.98 0.7,92

_ Magnesian Calcite Calcite 6, .

calcite

678

50F, 

155-33

0.9

.64

.26

5.9

48.8

.01

[56.5]

0,2.96

Magnesian

calcite

691

50F» 

155-46

1.7

.43

.37

9.6

44.0

.01

[56.1]

1.2,96

Magnesian

calcite

704

50Fj 

155-59

2.9

1.53

.37

1.7

51.0

.02

[57.5]

0.5.95

Calcite

717

50Fj 

155-72

0.6

.37

.23

1.5

53.2'

.01

[55.9]

0.1.98

Calcite

679

50Ft 

155-34

0.9

.61

.23

5.7

49.0

.01

[56.4]

0.2.97

Magnesian

calcite

692

50F, 

155-47

1.2

.41

.49

8.9

45.0

.01

[56.0]

0.2.96

Magnesian

calcite

705

50Fj 

155-60

3.9

1.38

.52

.8

51.4

.04

[58.0]

1,5.93

Calcite

718

50F, 

155-73

0.9

.37

.23

.7

53.2

.01

[55.4]

0,2,96

Calcite

680

50Ft 

155-35

0.9

.67

.23

5.4

49.2

.01

[56.4]

0.2,97

Magnesian

calcite

693

50Fj 

155-48

2.4

.53

.37

10.3

42.4

.03

[56.0]

1.2,96

Calcareous

dolomite

706

50Fj 

155-61

3.7

1.36

.34

1.2

51.6

.01

[58.2]

1,5,94

Calcite

719

50Fj 

155-74

2.1

.5t>

.34

1.9

50.2

.01

[55.1]

1,2.94

Magnesian

calcite

681

50Fj 

155-36

1.2

.74

.26

3.9

50.6

.01

[56.7]

0,2.97

Magnesian

calcite

694

50F, 

155-49

1.0

.47

.63

11.2

42.0

.01

[55.3]

0.2.97

Calcareous

dolomite

707

50F, 

155-62

4.5

1.78

.52

1.1

50.6

.01

[58.5]

1.7.92

Calcite

720

50Ft 

155-75

2.3

1.01

.49

1.3

50.4

.02

[55.5]

0.4.93

Calcite

682

50F, 

155-37

1.0

.37

.23

6.2

48.6

.01

[56.4]

0.2,96

Magnesian

calcite

695

50Fj 

155-50

2.6

.64

.46

7.9

44.8

.01

[56.4]

1,3.95

Magnesian

calcite

708

50F» 

155-63

5.4

2.08

.92

.7

50.2

.01

[59.3]

1.8.91

Calcite

721

50F» 

155-76

1.6

.41

.29

5.5

45.8

.02

[53.6]

1.2,93

Magnesian

683

50F, 

155-38

1.5

.43

.17

2.6

52.2

.01

[56.9]

1.2.97

Magnesian

calcite

696

50F, 

155-51

1.4

.54

.46

4.1

50.4

.01

[56.9]

0.3.96

Magnesian

calcite

709

50F, 

155-64

5.3

2.10

.60

1.0

50.0

.02

[59.0]

1,8.91

Calcite

722

50Ft 

155-77

1.5

.47

.23

1.7

51.0

.01

[54.9]

0.2,95

Calcite
ANALYSES OF SAMPLES 115

Table 7. Analyses of samples from Alaska containing more than 90 percent carbonate (Group Ft), common-rock category Continued

Chemical analyses Continued

A laska C ontinued

SiO, _________

Fe,0, ________

MgO _________

CaO _________

SOS __________

CaO/MeO _____

723

155-78

._ __ 3.0

___ .67

. ___ .23

2 7

, ___ 50.0

. ___ .01

, ___ [56.6]

. ___ 2,3,95

Magnesian

' calcite

724

50FZ 

155-79

2.0 

.57 

.23 

1.3 

51.8 

.01

[55.9] 

1,2.95 

Calcite

725

50FZ 

155-80

2.8 

.74 

.26 

.8 

51.6 

.01

[56.2] 

1,3.94 

Calcite

726

155-81

1.5 

.34 

.26 

1.6 

51.0 

.02

[54.7] 

1.2,94 

Calcite

727

155-82

1.1 

.59 

.31 

.9 

52.2 

.01

[55.1] 

0,2.95 

Calcite

728

50FZ 

155-83

0.6 

.30 

.20 

.3 

54.6 

.01

[56.0] 

0.1,98 

Calcite

729

155-84

1.7 

.66 

.54 

1.6 

49.6 

.01

[54.1] 

0,3.92 

Calcite

730

155-85

0.9 

.40 

.40 

6.7 

47.2 

.01

[55.6]

0,2,98

Magnesian 

calcite

731

50FZ 

155-86

1.0 

.40 

.20 

7.6 

46.8 

.01

[56.0]

0.2,97

Magnesian 

calcite

732

50FZ 

155-87

1.7 

.54 

.26 

9.6 

43.7 

.01

[55.8]

0,2,96

Magnesian 

calcite

733

50FZ 

155-88

3.1 

.61 

.29 

6.7 

46.3 

.01

[57.0]

2,3,95

Magnesian 

calcite

734

50FZ 

155-89

0.7 

.51 

.29 

8.0 

46.2 

.01

[55.7]

0.1,97

Magnesian 

calcite

735

50Fj 

155-90

0.6 

.41 

.29 

10.2 

43.8 

.01

[55.3]

0.1,97

Magnesian 

calcite

1 NajO, 0.025 percent; KjO. 0.16 percent, composite for drill hole 12.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

671-702. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst. H. E. Petecson. ( Rutledge and others, 1953, p. 4, 91, 93, 

100, 101, 113. 123, figs. 1. 3, 35. 36. 40, 41.) Limestone [except 

where noted], black, fine-grained; contains calcite Veinlets and some 

yellowish-brown earthy residue. Total depth of diamond-drill hole 284 ft. 

Index and geologic maps, geologic section, log of drill hole 11. Possible 

use for deposit: Portland cement, magnesia content often high so that 

complex mining and thorough blending may be required. [For other 

analyses from same drill hole, see samples 649-670, this group; sample 6, 

group C; sample 15, group E; and sample 64, group F t .]

671.

672.

673.

674.

675.

676.

677.

678.

679.

680.

681.

682.

683.

684.

685.

155-160

150-155

143-150

138-143

133-138

130-133

125-130

120-125

114-120

110-114

105-110

100-105

95-100

90- 95

85- 90

80- 85

687.

690.

691.

692.

693.

694.

695.

696.

697.

698.

699.

700.

701.

702.

75-80

70-75

65-70

60-65

55-60

50-55

44-50 [Dolomite.]

39-44 [Dolomite.]

35-39

30-35

24-30

20-24

15-20

10-15

5-10

0- 5

703-735. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. (Rutledge and others, 1953, p. 4, 91, 93, 

101, 114, 115, 123, figs. 1, 3, 35, 36. 40, 41.) Total depth of diamonddrill hole 240 ft. Index and geologic maps, geologic section, log of drill 

hole 12. Possible use for deposit: Portland cement, magnesia content 

often high so that complex mining and thorough blending may be required. 

[For other analyses from same drill hole, see samples 736-748, this group.]

703- 711. Limestone, black, fine-grained; contains little calcite. 

Weathered appearance in lower part.

Alaska Continued

708.

709.

206-210 

205-206

710.

711.

200-205 

195-200

712-715. Limestone, dark-gray, fine-grained; contains calcite 

veinlets and some yellow brown earthy residue.

712.

713.

190-195 

185-190

714.

715.

180-185 

175-180

716.

173.5-175 _____ Limestone, dark-gray, fine-grained; 

contains calcite veinlets and some 

yellow brown earthy residue.

173 -173.5-___ Clay like material, brownish-yellow, 

plastic.

170 -173 ______ Limestone, black, fine-grained; contains calcite veinlets and some 

yellow brown earthy residue.

717- 721. Limestone, black, fine-grained; contains calcite veinlets 

and some yellow brown earthy residue.

720.

721.

150-155 

145-150

722.

141.5-145 ______ Limestone, black, fine-grained; contains calcite veinlets and some 

yellow brown earthy residue.

140 -141.5 ______ Limestone, dark-gray, fine-grained;

contains calcite veinlets and some 

yellow brown earthy residue.

723- 735. Limestone, dark-gray, fine-grained; contains calcite veinlets 

and some yellow brown earthy residue.

703.

704.

705.

230-240 

225-230 

220-225

706.

707.

215-220 

210-215
116 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 7. Analyses of samples ftom Alaska containing more than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

Si02 ___ _ _

A1203 ______

Fe203 __________

MgO _ _______

CaO ________

SO3 _________ _

Total _______

Class ____________

CaO/MgO _________

Si02 ____________

AljO, ___________

FejO, __________

MgO _ _ ___ _

CaO ____________

SO, _____ __

Ignition loss _______

Total _______

Class ____________

CaO/MgO ___ ____

Si02 ____ _ __ __

Al,0, ___________

Fe20, ___________

MgO ____________

CaO ____________

PZ05 ____________

CO2 ____________

s

Total _______

Class ____________

CaO/MgO _____ _

Si02 _________ __

A1203 ___________

Fe20, ___________

FeO ____________

MgO ____________

CaO ____________

Na20__ _ ___

K20 ___________

H OTiO2 ____________

MnO _ ______ _

CO2 _______ _

Class _ _ ___ _

CaO/MgO _______

736

50F2 

155-91

0.6 

.44 

.36 

10.4 

43.6 

.01

[55.4] 

0,1,97

Magnesian 

calcite

749

50F2 

155-106

0.7 

.8 

.30 

3.7 

50.95 

.06

[56.5] 

0,1,97

Magnesian 

calcite

762

50F2 

155- 146

2.6 

1.36 

.54 

.7 

52.4

[57.6] 

0,5,95

Calcite

775

50F2 101-5

'0.47 

.12 

.14

.81 

53.5

.011

'42.89 

.013

[98.0] 

(0,1)97

Calcite

'Reported as insoluble. 

2 Reported as calculated; CO2 , 44

737

50F2 

155-92

0.4 

.34 

.26 

9.5 

44.6 

.01

[55.1] 

0,1,98

Magnesian 

calcite

750

50F2 

155-108

1.8 

1.0 

.36 

.8 

53.45 

.04

[57.4] 

0,3,96

Calcite

763

50F2 

155-145

2.6 

1.10 

.40 

.6 

53.4

[58.1] 

0,4,94

Calcite

776

50F2 101-6

1 1.48 

.18 

.44

.50 

53.5

.016

'42.5 

.040

[98.7] 

(1.2)97

Calcite

.17 percent.

738

50F2 

155-93

1.1 

.41 

.29 

9.6 

43.8 

.01

[55.2] 

0,2,98

Magnesian 

calcite

751

50F2 

155-107

0.9 

.6 

.26 

.5 

54.70 

.01

[57.0] 

0,2,97

Calcite

764

50 F2 

155-132

2.4 

1.05 

.45 

.5 

53.5

[57.9] 

0,4,95

Calcite

777

50F2 101-7

'0.54 

.10 

.40

1.70 

53.0

.016

'43.47 

.028

[99.3] 

(0,1)98

Calcite

739

50F2 

155-94

.30 

.20 

9.9 

44.2 

.01

[55.0] 

0,1,98

Magnesian 

calcite

752

50F2 

155-109

1.5 

.65 

.14 

.7 

54.20 

.01

[57.2] 

0,2,97

Calcite

765

50 F2 

155-133

3.2 

1.64 

.66 

.7 

52.6

[58.8] 

0,6,92

Calcite

778

50 F2 10 1-8

'0.32 

f 1.07

2.24 

52.2

.287

'43.49 

.050

[99.7] 

(0,1)98

Magnesian 

calcite

Alaska Continued

740 741 742

50F2 50F2 50F2 

155-95 155-96 155-97

0.4 0.5 0.4 

.34 .37 .37 

.26 .23 .23 

9.4 8.8 9.2 

44.6 45.8 45.2 

.01 .01 .01

[55.0] [55.7] [55.4] 

0,1,99 0,1,97 0,1,98

Magnesian Magnesian Magnesian 

calcite calcite calcite

Alaska Continued

753 754 755

50F2 50F2 50F2 

155-110 155-111 52-56

1.7 5.0 0.49

:28 :_7 } - 42

.55 .4 4.72 

54.00 52.25 49.63

[57.1] [58.6] 2 [55.26] 

0,2,97 3,3,93 0,1,98

_ Magnesian Calcite Calcite 6, . calcite

Alaska Continued

766 767 768

50F2 50F2 50F2 

155-134 155-137 155-141

3.5 7.2 3.7 

1.87 1.52 .97 

.63 .48 .23 

.8 .1 .1 

51.6 50.6 53.0

[58.4] [59.9] [58.0] 

0,6,93 4,6,90 2,3.95

Calcite Calcite Calcite

Alaska Continued

779 780 781

50F2 101-9 50F2 101-4 50F2 105-1

'None 4 1.70 'l.03 

f_ ___ _____ .12

1 6 Trace _____ .21

0.30 'l.24 .30 

55.59 3 54.29 54.2

_____ _____ .011

43.67 '43.96 S 42.8

[99.56] [101.19] [98.7] 

(0,0)99 (2,0)99 (1,1)97

Calcite Calcite Calcite

'Calculated from reported MgCO, and(or) 

4 Reported as insoluble in HC1 .

743

50F2 

155-98

0.4 

.40 

.20 

8.5 

46.4 

.01

[55.9] 

0,1,97

Magnesian 

calcite

756

50F2 

52-57

'0.9 

.9

Trace

54.4

43.8

100.0 

(0,3)97

Calcite

769

50F2 

155-142

5.9 

1.79 

.51 

.01 

50.8

[59.0] 

2,7,91

Calcite

782

50F2 105-2

'2.79 

t None

'.30 

3 54.24

'42.91

[100.24] 

(3,0)97

Calcite

CaCO,.

744

50 F2 

155-99

0.4 

.37 

.23 

9.1 

45.0 

.01

[55.1] 

0,1,98

Magnesian 

calcite

757

50F2 

52-58

'0.5 

.7

Trace

54.7

43.9

99.8 

(0,2)98

Calcite

770

50F2 

61-1

'2.56

'.43 

S 53.87

S 42.75

[99.61] 

(3,0)97

Calcite

783

50F2 115-1

'l.52

\

^

.46 

54.30

[56.28] 

(2,0)98

Calcite

745

50F2 

155-100

0.3 

.37 

.23 

9.7 

44.4 

.01

[55.0] 

0,1,98

Magnesian 

calcite

758

50F2 

155-148

1.1 

f .53 

1 .37 

1.1

54.0

[57.1] 

0,2.97

Calcite

771

50F2 

90-1

'9.26

16.39 

29.22

[54.87] 

(9,0)86 

Calcareous 

dolomite

784

50F2 124-21

J 0.91

S 18.69 

'34.24

'47.28

[101.12] 

(1,0)100

Calcareous 

dolomite

746

50F2 

155-101

0.3 

.47 

.23 

8.5 

45.6 

.01

[55.1] 

0,1,99

Magnesian 

calcite

759

50F2 

155-149

2.7 

.83 

.37 

.6 

53.8

[58.3] 

1,3,94

Calcite

772

50 F2 

90-2

'l.82

.14 

53.93

[55.89] 

(2,0)97

Calcite

785

50F2 124-22

4 3.61

'.69 

'53.47

'42.73

[100.50] 

(3,0)97

Calcite

747

50 F2 

155-102

0.6 

.61 

.29 

10.4 

43.4 

.01

[55.3] 

0,1,97

Magnesian 

calcite

760

50F2 

155-143

1.5 

.76 

.34 

.6 

54.5

[57.7] 

0,3,95

Calcite

773

50F2 

101-3

'0.33 

.11 

.09 

4.39 

49.4 

.013 

'43.55 

.008

[97.9] 

( 0 , 1) 97 

Magnesian 

calcite

786

50F2 125-1

0.12 

.14 

.00 

.08 

2.02 

53.75 

.00 

.02 

.06 

.02 

.00 

.01 

.01 

44.07

100.30 

0,0,99

Calcite

748

50F2 

155-103

0.6 

.51 

.29 

8.5 

45.4 

.01

[55.3] 

0,1,98

Magnesian 

calcite

761

50F2 

155-144

1.7 

.69 

.31 

.3 

54.4

[57.4] 

0,3,96

Calcite

774

50F2 

101-10

'0.06 

.02 

.04 

.61 

54.7 

.008 

'43.61 

.017

[99.1] 

(0,0)99

Calcite

787

50F2 125-2

0.13 

.03 

.07 

.03 

2.54 

53.09 

.00 

.02 

.08 

.02 

.00 

.01 

.01 

44.16

100 . 19 

0.0,99

Magnesian 

calcite

5 Reported as slight trace . 

6 Reported as SO,.
ANALYSES OF SAMPLES 117

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Alaska Continued

736-748. Healy quadrangle. Paleozoic, possibly Devonian. [Sees. 8, 17, T. 17 S., 

R. 7 W., unsurveyed], southern slope of Alaska Range in southeastern 

corner of Mount McKinley National Park. Northern Empire Development 

Co. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 91, 93, 

101, 114, 123, figs. 1, 3, 35, 36, 40, 41.) Limestone, dark-gray, finegrained; contains calcite veinlets and some yellow-brown earthy residue. 

Total depth of diamond-drill hole 240 ft. Index and geologic maps, 

geologic section, log of drill hole 12. Possible use for deposit: Portland 

cement, magnesia content often high so that complex mining and thorough 

blending may be required. [For other analyses from same drill hole, see 

samples 703-735, this group.]

736.

737.

738.

739.

740.

70-75

65-70

61-65

55-61

48-55

741.

742.

743.

744.

40-48

35-40

30-35

25-30

745.

746.

747.

748.

20-25

15-20

10-15

0-10

755-757.

749-754. Healy quadrangle. Paleozoic, possibly Devonian. [Sec. 9, T. 17 S., 

R. 7 W., unsurveyed], between Little Windy and Bain Creeks, Windy 

Creek area. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 

93, 115, 116, figs. 1, 3, 35, 41.) Limestone. Index and geologic maps. 

Possible use: None.

749. Sample W-l.

750. Sample W-2.

751. Sample W-3.

752. Sample W-4.

753. Sample W-5.

754. Locality: Narrow outcrop along course of Bain Creek. Sample W-9.

Healy quadrangle, [Devonian. Sec. 9, T. 17 S.. R. 7 W., unsurveyed], 

about 2 miles southwest of Windy station. Analyst, M. L. Sharp. 

( Waring. 1947, p. 4, 6-ji.) Limestone. Index maps.

755. Sampled. Limestone, dark-gray; massive or thick bedded.

756. Sample 4. Limestone, dark-gray.

757. Sample 5. Limestone, gray; contains calcite veins.

Healy quadrangle. Triassic. West Pork of Chulitna River, Broad Pass 

region. Analyst, H. E. Peterson. ( Rutledge and others, 1953, p. 4, 87, 

118-J120, 123, figs. 1, 3, 26, 44.) Limestone. Index and geologic maps. 

Possible use: Cement, rock wool.

758-766. Locality: [2.3-2.5,3.3-3.75]. Outcrop description: Limestone, white to gray, crystalline, fossiliferous; fractured 

and weathered.

758-769.

Sample

758. 173

759. 174

760. 175

Sample

764. 180

765. 181

766. 182

767-769. Locality: [2.45-2.75,2.85-3.3]. Outcrop description: 

Limestone, white to gray, fossiliferous; fractured and 

weathered. Interbedded with siliceous material.

767. Sample 190. 768. Sample 186. 769. Sample 185.

770. luneau quadrangle. Silurian. [0.3, 12.35], south of Sandy Cove, east

shore of Glacier Bay. Analyst, R. K. Bailey. Record 2952. ( Burchard, 

1920, p. 38, 42, 43, pi. 1; Buddington, 1926. p. J51.) Limestone, 

mottled. Index and geologic maps. Thin-section description. Possible 

use: Probably none.

771, 772. [Mount Michelson quadrangle. Early and Late Mississippian, Pennsylvania^?) 

and Permian], Lisburne [Group]. [3.4-8.5, 0.0-17.6], Canning River. 

( Gryc, 1948, p. 1, 2, 5, 7.)

771. Sample 47A Gr 160. Dolomitic limestone, porous; sugary texture. 

Thin-section description.

772. Sample 47A Gr 184. Limestone.

773-778. Petersburg quadrangle. Analyst, Nils Johansson. ( Roehm, 1946, p. 11, 25, 

29, 60, 63-65, 67, 69-76, 81-83.) Chip samples, a portion contained 

weathered surfaces. Mineralogy, thin-section description. Little overburden; tonnage estimated. Index maps. Possible use: Agricultural.

773. Silurian. [4.8, 3.5], west coast of Prince of Wales Island, north 

shore of Shakan Bay. Sample and deposit 17. Limerock, dolomitic, bluish-gray, semicrystalline, massive, dense; weathers 

dull whitish gray; contains calcite veinlets and fossil outlines. 

Chip samples from base of bluff, taken across 1,500 ft; estimated 

thickness 2,000 ft.

Alaska Continued

774. Silurian. [5.3, 3.1], west coast of Prince of Wales Island, Shakan 

Bay. Calder marble quarry. Sample and deposit 16. Marble, 

light-bluish-gray, crystalline, dense; weathers light gray. Bulk 

density 2.71. Chip samples taken across 300 ft; thickness 500 ft 

above sea level.Possible use: Chemical, pulp and paper industry.

775. Silurian. [9.0, 3.8], Prince of Wales Island, west shore of

Exchange Cove. Sample and deposit 18. Limerock, light-bluishgray, some mottled areas, semicrystalline. Bulk density 2.70. 

Chip samples taken across 2,000 ft; estimated thickness more 

than 1,000 ft. Possible use: Metallurgical.

776. Silurian. [9.8, 4.3], Shrubby Island of Kashevarof Islands, Mud 

Bay. Sample and deposit 19. Limerock, light-bluish-buff, 

finely crystalline, brittle; weathers gray. Bulk density 2.68. 

Chip samples taken across outcrop. Possible use: Metallurgical, 

water treatment.

777. Silurian. [10.4, 4.0]. east side Shrubby Island of Kashevarof 

Islands, Piledriver Bay. Sample and deposit 20. Limerock, 

brownish-gray, mottled with blackish streaks, semicrystalline, 

some calcite veinlets; weathers reddish brown. Bulk density 2.67. 

Chip samples of beach outcrop taken across 1,500 ft. Possible 

use: Metallurgical, water treatment.

77B. Middle Devonian. [6.3, 14.3], Kupreanof Island, Towers Arm. 

Sample and deposit 23. Limerock, dark, mottled-gray, semicrystalline, calcite-veined: weathers light gray. Bulk density 

2.73. Chip samples taken across 2,000 ft in bluff. Beach outcrop; estimated thickness 2,000 ft.

779,780. Petersburg quadrangle. Silurian. Prince of Wales Island. Thin-section 

description. Index and geologic maps.

779. [5.3, 3.1], a few miles north of town of Shakan, Marble Creek,

Alaska Marble Co. Analyst. E. F. Ladd. (W right. 1907. p. ]5; 

Wright, 190B, p. 117, 118. pis. 1, 2; Burchard, 1920, p. 60, 

61, 62, pis. 1, 3.) Marble, white, finely crystalline; quarried 

to an average depth of 60 ft. Use: Dimension stone [implied], 

interior decoration.

780. [6.35-6.8, 4.2-5.7] , near head of Red Bay. Vermont Marble Co., 

claims. Analyst, R. K. Bailey. Record 2952, deposit 24. 

(Burchard, 1920, p. j>9, pis. 1, 3; Buddington, 1926, p. 61; 

Wells, 1937, p. 47.) Limestone, light-gray and cream, mottled; 

banded gray and blue phases; fine grained, subcrystalline.

781. Port Alexander quadrangle. Silurian. [16.9-17.6, 15.6-15.8] , Kuiu

Island, west side of Saginaw Bay. Analyst, Nils Johansson. Sample and 

deposit 21. (Roehm, 1946, p. 11, 25, M, 77-79.) Limerock, lightbuff to bluish-gray, slightly friable, fossiliferous; weathers light gray. 

Bulk density 2.69. Chip sample from beach outcrop, a portion contained 

weathered surfaces. Mineralogy, thin-section description. 1,000 ft thick; 

little overburden. Tonnage estimated. Index maps. Possible use: Glass 

industry, metallurgical, structural products.

782. Port Alexander quadrangle. Permian. [16.9-17.6. 15.6-15.8], Kuiu 

Island, west side of Saginaw Bay. Analyst, J. G. Fairchild. Lab. No. 

C630, sample 13. (Buddington, 1926, p. 60, 61; Wells, 1937. p. 47.) 

Limestone in bluff; typical specimen.

783. [Sagavanirktok quadrangle.] Lisburne [Group]. [7.3-9.5,0.0-17.6], 

Sagavanirktok River. Sample 46A Gr77. ( Gryc, 1948, p. 1, 2. 4.) 

Limestone, partially recrystallized.

784, 785. Sitka quadrangle. Paleozoic. [Sec. 29, T. 48 S.. R. 66 E.], Admiralty 

Island. Analyst, R. K. Bailey. Deposit 17. ( Wells, 1937, p. 47.) 

Thin-section description. Index and geologic maps.

784. North of Marble Cove. Record 2952. (Burchard, 1920, p. 15, ^2, 

pis. 1, 2.) [Calcareous dolomite], marble, white, fine-grained.

785. South, of Marble Cove. (Burchard, 1920, p. 15, 52.J53. pis. 1. 2.) 

[Limestone], marble, white.

786,787. Skagway quadrangle. Paleozoic. [Possibly sees. 27. 34, T. 30 S., 

R. 59 E.], upper Lynn Canal area, Haines cut-off. Analyst, 

H. M. Hyman; collector, E. C. Robertson. ( Twenhofel, 1953, p.2,^2.) 

Index map.

786. Lab. No. 50ARn-162. Limestone, white, massive.

787. Lab. No. 50ARn-163. Limestone, white, thick beds.
118 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 8. Analyses of samples from Idaho containing more than 90 percent carbonate (Group Ft), common-rock category 

[ Samples of mixed-rock category indicated by an asterisk (*). Chemical analyses arranged by county and stratigraphic position ]

Chemical analyses

SiOj __________

Al,0, _

Fe,0, .

MgO __________

CaO __________

Na,0 .

K.O __________

P.O. _

MnO __________

CO, __________

SO, __ __ _ __ _

F ___________ _

Organic matter _ _

Cr ____________

LessO _________

Total ___ .

Class .

CaO/MgO _______

SiOj ________ .

Al,0, .

Fe.0, .

FeO ___________

MgO .

CaO __________

CO, .

FeCO, __ _____ .

Organic matter __.

Total _____

Class ________ .

CaO/MgO _____ .

1

1 IF ,4-1

2.55

.43

.44

1.35

51.96

T 41.08

1.80

99.61

1.4,93

Calcite

14

11F,16-1

'l.06

.19

 .21

'2.18

'52.7

6 43.7

.__ [100.0]

. _ 0,1.99

Magnesian

calcite

*2

11F.4-98

3.04

.66

.28

.84

51.72

.12

.09

613 .49

.07

27.39

.46

1.31

'2.80

.06

.02

102.35

 .55

[101.80]

2.5.63

Calcite

15

HF,16-2

'0.50

.09

 .14

'.66

'54.6

'43.6

[99.6]

0.1.99

345

11F2 8-1 HF,9-4 HF,9-2

_____ 1 n ( .80 }

\ 1<0° I 80 1

_____ 1.13 '2.01

54.44 52.84 6 49.86

_____ _____ '41.33

[54.44] 99.99 98.00

0,0.97 1.3,95 1.4.93

_ , _ , Magnesian Calcite Calcite °^ calcite

Idahc

16 17 18

HF,16-3 HF,16-5 HF,16-6

'0.77 'l.35 '1.63

.09 .17 .18

*.14 '.21 *.14

'.50 'l.75 '.62

'54.6 '53.1 '53.6

'43.4 '43.6 '42.8

[99.5] [100.2] [99.0]

0,1.98 1.1.98 1.1,97

Idaho

6 7

1 IF, 10- 5 1 IF, 10 -6

_____ .2

( .0

1 ' 5 t .0

'.72 .0

'53.22 '54.9

'42.56 '44.9

[99.7] 100.0

0.3.96 0.0.100

Calcite Calcite

i 'Continued

19 20

llF,16-4 llF,18-9

Trace j »

Trace J

.90

'54.45 54.32

'42.75 ______

[98.20] [56.67]

1,0,97 1.0.98

8

HF,10-4

1.7

1

J ' 4

'.57

'54.51

'43.42

[100.6]

1.1.98

Calcite

21

llF,18-8

'.64

".12

3.05

51.96

T 44.08

99.85

(0.0)99

Magnesian

calcite

9

11F,12-1

'0.02

2.04

.38

.13

54.78

.03

42.94

100.32

1.1.97

Calcite

22

11F,18-1

1.02

'.3

'55.4

'43.7

[100.4]

1.0,99

Calcite

10

HF,12-2

0.06

4 1.90

(

OH .28

.07

55.10

.10

43.14

100.65

1.1.98

Calcite

23

HF,18-2

3.8

'.2

'.4

'52.0

'41.4

"(.4)

[ 97.8]

4.0,94

Calcite

11

llF,12-3

0.09

4 1.34

1

J .34

.34

54.52

.10

43.34

100.07

1.1.98

Calcite

24

llF,18-3

3.6

'.2

'53.7

'42.3

[99.8]

4,0,96

Calcite

12

1 IF, 15-1

1 5.98

(

{ S 1.05

'.20

'51.84

'40.93

100.00

5,2,93

Calcite

25

1 IF, 18-4

0.6

'.7

'54.0

6 43.2

[98.5]

1.0,98

Calcite

13

11F,16-11

'5.25

.66

'.79

'2.32

6 49.1

 41.1

[99.2]

3,4.93

Magnesian

calcite

26

llF,18-6

1.2

'3.4

'50.2

6 43.1

Trace

[97.9]

1.0.95

Magnesian

calcite

'Soluble silica.

'Silica, alumina, water, and loss. 

'Reported as insoluble (silica) . 

4 Insoluble in acid. 

 iron oxide.

'Calculated from reported MgCO., CaCO., 

FeCO,, P. C, and(or) F.

7 Reported as calculated.

'insoluble portion contained a trace of titanium oxide. Silica, 

0.37 percent (Russell, 1901b. p. 121).

"R.O,.

"iron, manganese, and aluminum oxides.

11 Not included in total.
ANALYSES OF SAMPLES 119

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Idaho

1. Bear Lake County. Mississippian, Brazer Limestone. T. 13 S., R. 44 E., 

town of Montpelier. Analyst, W. C. Wheeler; collector, R. W. Richards. 

Lab. No. 2794. ( Clarke, 1915, p. 239; Mansfield. 1927, p. 2, 331. 

pis. 1, 9, 12, 19.) Limestone, average sample; represents 20 ft of thickbedded, broken, and calcite-seamedrock exposed in quarry wall. Index 

and geologic maps, geologic section, generalized columnar section.

*2. Bear Lake County. Permian, Phosphoria Formation, [Meade Peak Phosphatic 

Shale Member. T. 9 S., R. 45 E.], near Georgetown. Central Farmers 

Fertilizer Co. No. S107. ( Emigh. 1958, p. 31, 32-34, fig. 1.) General: 

Phosphorite, 20 ft thick. Mineralogy, thin-section description. Sample: 

[Phosphatic shale], near top of bed. Index map. ^Analysis suggests 32.0 

percent phosphate.

3. Boise County. Sec. 31, T. 9 N., R. 3 E., town of Banks. ( Hodge, 1944, 

p. 15, 64, pi. 9.) Limestone, white. Index map.

4. Bonner County. [T. 53 N., R. 1 W.], about 6 miles from town of Bayview, 

Pend Oreille Lake. International Portland Cement Co. (Shedd, 1913, 

p. 175. 176.) Limestone. Use: Cement.

5. Bonner County. [T. 57 N., R. 2 W.], near town of Ponderay. Idaho 

Smelting and Refining Co. Analyst, C. W. Lauer. (Burchard, 1912, 

p. 663. pi. 1.) Limestone. Index map. Use: Quarried [use not stated].

6. Bonneville County. Mississippian, Madison Limestone. Sec. 12, T. 2N., 

R. 43 E., near Pine Creek bridge. ( Savage, 1961, p. 19, T6, figs. 3, 9.) 

General: Limestone, dark-bluish-gray to brown and red, thin-bedded to 

massive, medium- to coarse-grained, fossiliferous. Geologic map. Correlated columnar sections.

7. Bonneville County. Quaternary. Sec. 9, T. 1 N., R. 43 E., near mouth of 

Fall Creek, west of Swan Valley. ( Savage, 1961, p. 32. 33, T7, figs. 3. 

9.) General: Travertine, gray to white, somewhat massive, porous, tabular. Geologic map, correlated columnar sections. Use: Lime.

8. Bonneville County. T. IN., R. 45 E., about 4 miles up Palisades Creek. 

( Savage, 1961, p. 75, figs. 3, 9.) Limestone. Geologic map, correlated 

columnar sections. Former use: Sugar industry.

9. Butte County. PaleozoW?). [T. 4 N., R. 26 E.], town of Arco. UtahIdaho Sugar Co. (Loughlin, 1914, p. 1383, 1384, pi. 7.) Limestone. 

Index map. Use: Sugar industry, road metal.

10. Butte County. Paleozoic(?). [T. 4 N., R. 26 E., near] Arco. Utah-Idaho 

Sugar Co. quarry. Analyst, Walter Stimmel. (Burchard, 1912, p. 662, 

pi. 1; Loughlin. 1914, p. 1383, 1384.) Limestone. Index map. Use: 

Sugar industry.

11. County, age, locality, and use as in sample 10. ( Burchard, 1912, p. 663, 

pi. 1; Loughlin. 1914, p. 1383. 1384.) Limestone. Index map.

12. Caribou County. ( Quaternary) Pleistocene. T. 9 S., R. 41 E., 4.5 miles 

west of town of Soda Springs, on bank of Bear River. ( Fremont, 1845, 

p. 136; Mansfield, 1927, p. 2, 318, pis. 1, 19; Mansfield, 1929, p. 37, 

97.) Travertine. Index and geologic maps, generalized columnar section.

13. Cassia County. Precambrian, [Albion Range Group.] Sec. 31, T. 10 S., 

R. 25 E., about 3 miles east of town of Declo. Quarry at north end of 

Albion Range. Analyst, R. V. Lundquist. ( Anderson, 1931, p. 6, 154, 

155, pis. 18, 19.) Marble, grayish, mottled, coarsely crystalline, thinbedded; contains some disseminated pyrite and lime silicates; 15 ft exposed 

in quarry, overburden. Index and geologic maps, geologic sections. 

Former use: Sugar industry. Possible use: Lime.

14. Cassia County. [Albion Range Group.] Sec. 24, T. 11 S., R. 24 E. Quarry 

near highway between Albion and Declo. Analyst, R. V. Lundquist. 

( Anderson, 1931, p. 6, 154, 155. 156, pis. 18, 19.) Marble, grayish, 

mottled, banded, moderately coarsely crystalline, massive; free of pyrite 

or other minerals. Large reserves. Index and geologic maps, geologic 

sections. Former use: Lime. Possible use: Sugar industry, high-calcium 

lime, monumental and building stone.

Idaho Continued

15, 16. Cassia County. [Albion Range Group.] Sec. 24, T. 12 S., R. 23 E., about 

3.5 miles southeast of town of Hazel. Quarry near mouth of Smith Creek. 

Analyst, R. V. Lundquist. (Anderson, 1931, p. 6,154,155,156,pis. 18.19.) 

General: Marble, grayish, mottled, moderately coarsely crystalline; some 

layers of pure white marble. Bed about 100 ft thick. Index and geologic 

maps, geologic sections. Possible use: Sugar industry, lime, monumental 

stone.

15. Sample: Marble, grayish mottled bands.

16. Sample: Marble, white bands.

17, 18. Cassia County. Analyst, R. V. Lundquist. ( Anderson. 1931, p. 6, 30, 33, 

153. 154, pis. 18, 19.) Index and geologic maps, geologic sections. 

Possible use: Cement, high-calcium lime, building stone.

17. Mississippian. Sec. 9, T. 16 S., R. 29 E., southern end of Black Pine 

Range. Limestone, light-gray, massive; fractured and seamed with 

calcite.

18. Pennsylvanian, lower part of Wells Formation. [T.14S.,

Rs. 23-24 E.], east of town of Oakley, west slope of Albion Range. 

Limestone, dark-gray.

19. Cassia County. Paleozoict ?). [T. 10 S., R. 23 E., near] town of Burley. 

Barren Lime Co. Analyst, W. H. Tremaine. (Burchard, 1912, p. 663, 

pi. 1; Loughlin, 1914, p. 1383. 1384, 1387, pi. 7.) Limestone. Index 

map. Use: Lime.

20. Clearwater County. [Precambrian, Orofino Series. T. 36 N., R. 2 E.], 

town of Orofino. (Hodge, 1944, p. 15, 72, pi. 10.) Limestone, white, 

crystalline. Index map.

21. Clearwater County. Orofino Series ( Anderson, 1930). [T. 36 N., R. 2 E.], 

near Orofino. Analyst, W. F. Hillebrand. Lab. No. 1905. (Russell. 1901b, 

p. 120, _121; Eckel, 1913, p. 135, J136.) Limestone ( also called marble), 

white, coarse-grained, crystalline. Possible use: Portland cement, lime, 

dimension stone.

22-24. Clearwater County. Orofino Series. Analyst, R. V. Lundquist. (Anderson, 

1930, p. 9, 55, 56, 57, pis. 5, 7, fig. 1.) General: Limestone ( also 

called marble), white, crystalline, in lenticular beds; ranges from a few 

feet to as much as 800 ft in thickness. Mineralogy. Index and geologic 

maps. Use of some Orofino area deposits: Agriculture ( poultry grits), 

chemical agent in explosive manufacture, lime. Possible use: Cement.

22. T. 36 N., R. 2 E., south of Orofino. Clearwater Lime Products 

Co. quarry. Selected sample.

23. Sec. 16, T. 36 N., R. 2 E., about 2.5 miles south of Orofino, Clearwater Lime Products Co. quarry. Sample: Limestone ( also called 

marble), white, massive, coarsely crystalline; probably 800 ft thick. 

Possible use: Dimension stone.

24. Sec. 17, T. 36 N., R. 2 E., about 1.5 miles south of Orofino. Clearwater Lime Products Co. quarry. Deposit: Limestone ( also called 

marble), white, crystalline, both fine- and coarse-grained; contains 

much granitic material as dikes and veins; bed about 200 ft thick. 

Former use: Agriculture, lime.

25, 26. Clearwater County. Orofino Series. Sec. 3, T. 36 N., R. 3 E., Orofino 

Creek Canyon. Sewell Lime Co. Analyst, R. V. Lundquist. 

( Anderson, 1930, p. 9, 55, 58. pis. 5, 7, fig. 1.) General: Limestone ( also called marble), mainly white, gray in some places, coarsely 

crystalline; about 600 ft thick; mineralogy. Index and geologic maps. 

Possible use: Dimension stone.

25. Sample: Marble, white, 

industry, lime.

26. Sample: Marble, gray.

Possible use: Cement, chemical
120 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 8. Analyses of samples from Idaho containing more than 90 percent carbonate (Group Fj),common-rock category Continued

Chemical analyses Continued

Idaho Continued

SiOj .

A120, .

Fe20, .

FeO ____________

MgO ___________

CaO ___________

H20 S ___________

Pz05 _

C02 _

S ______________

FeCO, .

Total ______

Class ___________

CaO/MgO ________

SiOj _________ .

Al-0, .

Fe-0, _

FeO ____________

MgO .

CaO _________ .

C02 .

SO, ___________

FeCO, ________ .

Total ____ .

Class ______ _.

CaO/MgO ______ .

27 28

HF2 18-5 11F2 18-10

. ________ 0.53 ______

1 11

. ________ '2.23 ______

. ________ 1 52.86 '54.9

. ________ '43.92 '43.1

4 ( 17)

. ________ [99.65] [98.0]

. ________ 1,0,99 0,0,98

Magnesian ,

calcite

39 40 41

11F2 19-15 llFj!9-14 IIP. 19-20

7 2.18 7 2.47 ______

1.43 1.63 1 .65

52.90 51.78 *53.79

43.31 43.24 '42.93

12

99.99 99.12 99.76

2,0,98 (2.0)97 0.2,97

Calcite Calcite Calcite

29

11F2 19-1

2.93 

.03

'20.22 

'30.72

.02 

'46.20 

.01

100 . 13 

(3,0)97 

Dolomite

42

11F225-1

1.0

'.3 

'54.4 

'43.0

Trace

[98.7] 

1.0,98 

Calcite

30

HF2 19-2

0.85 

.03

'21.49 

'30.52

.03 

'47.42 

.02

100.36 

(1.0)99 

Dolomite

Idab<

43

llF225-3

0.8

'.4 

'54.4 

'43.1

Trace

[98.7] 

1.0.98 

Calcite

31

llF2 19-3

1.50 

.10

'21.06 

'30.54

None 

'46.96 

None

100 . 16 

(2.0)98 

Dolomite

32

HF2 19-4

1.73 

.16

'20.92 

J 30.52

None 

*46.80 

None

100 . 13 

(2,0)98 

Dolomite

33

HF2 19-6

3.96 

.04

'20.43 

'29.82

None 

'45.71 

None

99.96 

(4,0)96 

Dolomite

34

11F2 19-19

1 Trace 

'53.5

'42.0

[95.5] 

0,0,96 

Calcite

35

11F2 19-13

2.89 

.19

'.51 

'53.85

None

'42.83 

None

100.27 

(3.0)97 

Calcite

36

llF2 19-7

1.67

.30 

.16 

.08 

.48 

53.71 

.49

41.89

98.78 

1,2.95 

Calcite

37

llF2 19-8

2.84

.18 

.13 

.09 

1.03 

54.14 

.41

41.28

100 . 10 

2,1,93 

Calcite

38

HF2 19-9

3.92

.72 

.04 

.26 

12.72 

42.14 

.47

38.98

99.25

3.3.85

Calcareous 

dolomite

) Continued

44

11F-25-2

2.8

'.2

'.4

'53.1 

'42.1

4 (-4)

[98.6] 

3.0,96 

Calcite

45

llF228-3

*0.8

'None

*2.8 

! 52.2 

'44.0

99.8

(1.0)99

Magnesian 

calcite

46

HF228-5

*2.3

'.2

'l8.0 

 33.6 

'46.1

100.2

(2,1)97

Calcareous 

dolomite

47

HFz28-6

*2.2

'Trace

'20.8 

'31.4 

'47.3

101.7 

(2.0)99 

Dolomite

48

11F.28-2

«5.1

'Trace

'16.5 

'33.9 

'44.7

100.2

(5,0)95

Calcareous 

dolomite

49

HF228-4

«2.4

'None

'2.7 

'51.7 

*43.5

100.3

(2,0)98

Magnesian 

calcite

50

llFj30-l

0.99

.79 

53.40 

43.35

"98.53 

(1,0)98 

Calcite

51

11F-31-2

2.25

 T7o-

} _,

1.71 

53.45 

'41.56

"100.05 

1,3,93 

Calcite

'Calculated from reported MgCO,, CaCO, and(or) FeCO,.

'Reported as Mg.

'Loss on ignition less CO2 (Umpleby, 1914, p. 344) .

4 Not included in total.

5Soluble silica.

'Reported as silica, mica, clay, and so forth.

'Dried at 118»C.

'Reported as iron oxides and alumina.

'Reported as ignition loss.

"99.47 percent in text.

"HjO- = 0.06 percent; not included in total.
ANALYSES OF SAMPLES 121

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

27. Clearwater County. Precambrian, Orofino Series. Sec. 3, T. 36 N., 

R. 3 E., Orofino Creek Canyon. Sewell Lime Co. Analyst, 

R. V. Lundquist. ( Anderson, 1930, p. 9, 55, j>8, pis. 5, 7, fig. 1.) 

General: Limestone ( also called marbleX mainly white, gray in some 

places, coarsely crystalline; about 600 ft thick; mineralogy. Index and 

geologic maps. Possible use: Dimension stone.

28. Clearwater County. Orofino Series( Anderson, 1930). Sec. 3, T. 36 N., 

R. 3 E., about 11 miles east of town of Orofino. Sewell Lime Co. 

( Hodge, 1944, p. J5.) Limestone, 100 ft bed.

29. Custer County. Ordovician, Kinnikinic Quartzite. [T. 9N..R. 23E.], 

Upper West Pork of Pahsimeroi River. Analyst, R. C. Wells. Analysis 

NC 61. (Ross, 1947, p. 1089, 1103, 1118. pi. 1.) Dolomite, dark. 

Index and geologic maps, geologic sections.

30. Custer County. Ordovician, Saturday Mountain Formation. Sec. 36,

T. 13 N., R. 22 E., small butte 1.5 miles east northeast of Mahogany 

Hill. Analyst, R. C. Wells. Analysis NC 71. (Ross. 1947, p. 1089. 

1104, 1105. 1118. pis. 1. 12.) General: Dolomite, dull, dark-bluishgray , almost black; 700 ft exposed. Sample: Typical. Index and 

geologic maps, geologic sections. Photomicrograph.

31. Custer County. Silurian, Laketown Dolomite. [T. 10 N., R. 23 E.], 

Rock Creek, tributary to West Fork of Pahsimeroi River. Analyst, 

R. C. Wells. Analysis NC 58. ( Ross, 1947, p. 1089, 1105, 1106, 1118. 

pis. 1, 12.) General: Dolomite, light-bluish-gray, bedded; more than 

600 ft thick. Index and geologic maps, geologic sections. Photomicrograph of Laketown Dolomite.

32. Custer County. Late Devonian, Jefferson Dolomite. [T. 9 N., R. 22 E.], 

west side of Borah Peak. Analyst, R. C. Wells. Analysis NC 21. ( Ross, 

1947, p. 1089, 1107, 1108, 1118, pis. 1, 12.) General: Dolomite, darkbluish-gray, fossiliferous. Sample: Dolomite, dark. Index and geologic 

maps, geologic sections, detailed measured'sections. Photomicrographs.

33. Custer County. Late Devonian, Grand.View Dolomite. [Possibly T. 14 N., 

R. 24 E.] , Station 545, Mill Creek, near confluence with Grouse Creek. 

Analyst, R. C. Wells. Analysis NC 70. (Ross, 1947, p. 1089, 1109, 

1110, 1118, pis. 1, 13.) General: Dolomite, moderately dark, bedded; 

weathers rusty. Index and geologic maps, geologic sections, detailed 

measured section. Photomicrograph.

34. Custer County. Mississippian, Brazer Limestone. T. 6 N., R. 22 E., 12

miles west of town of Mackay, near Cabin Creek. Analyst, J. A. Thomas. 

Sample and Lab. No. Se-7. ( Skipp, 1961. p. 377-381, 386, 387.) Unit 

description: Limestone, dark-gray to medium-gray, fine- to mediumgrained, thin- to thick-bedded, fossiliferous; weathers medium gray to 

light gray; contains sandstone lens; 495 ft thick. Sample description: 

Limestone, calcarenitic; fossil and lithic fragments cemented by finegrained calcareous mud matrix which comprises about 50 percent of rock. 

Thin-section diagram. Index and geologic map, columnar section, 

detailed measured section.

35. Custer County. Brazer Limestone. [T. 12 N., R. 22 E.], Station 549,

mouth of Rock Springs Canyon. Analyst, R. C. Wells. Analysis NC 74. 

( Ross, 1947, p. 1089, 1095, 1114-1116, 1118, pis. 1, 3, 13, figs. 2, 5.) 

General: Limestone, dark-bluish-gray, bedded, fossiliferous; contains 

chert. Index and geologic maps, geologic sections, detailed measured 

section. Photomicrograph of Brazer Limestone.

36-38. Custer County. Mississippian. [T. 6 N., R. 23 E.], near Mackay. Alder 

Creek Mining district. Empire mine. Analyst, W. C. Wheeler. Lab. 

No. 2851. (Umpleby, 1914. p. 308-310, 313. 314. 326, 329. 344-346; 

Umpleby, 1917, p. 12, j>9, 70. 71. 93, 95, pis. 1. 7.) General: Limestone, blue, massive and semimassive; chert in lower members. Porosity. 

Index and geologic maps, geologic sections.

36. Sample: Limestone, blue-gray. Bulk density 2.728.

37. Sample: Limestone, blue-gray. Bulk density 2.749.

38. Sample: Limestone, blue-gray. Bulk density 2.810.

39,40. Custer County. Possibly Oligocene part of Challis Volcanics. Sec. 27,

T. 13 N.. R. 19 E. Analyst, J. G. Fairchild. Analysts of insoluble constituents, J. G. Fairchild and L. T. Richardson. Lab. No. D-93. ( Ross, 

1937, p. 3, 63, 64, 68, pi. 1.) General: Travertine, commonly 

yellowish-white, much brown stain; beds several inches to over a foot 

thick; total thickness more than 100 ft. Index and geologic maps, 

geologic sections. Possible use: Cement, lime, sugar refining, ornamental 

stone.

39. Analysis of travertine. The approximate analysis of insoluble

constituents; amounts in percent: SiOj = 67, AljOj = 9, FejOj = 6, 

MgO-t-CaO = 3, NajO+KjO = 5, water and organic matter = 10, 

total = 100. -Insoluble matter is in part clay containing less than 

5 percent organic matter.

40. Analysis of travertine. The approximate analysis of insoluble

constituents; amounts in percent: SiOj = 60, AljOj = 11. FejOs = 3, 

MgO+CaO = 0, NajO-t-KjO = 1, water and organic matter = 23, 

total = 98 [ 100 in text]. Insoluble matter is in part clay containing 

less than 5 percent organic matter.

41. Custer County. [T. 7N..R. 24E.], about 3 miles south of Mackay. Near 

mouth of Albert Tunnel. Analyst, J. F. Kemp. Sample 96. ( Kemp, 1907, 

p. j>; Kemp and Gunther, 1908, p. 269-271, 273, 275, 276, 277.) 

[Limestone] marble, white, crystalline. Index and geologic maps, 

geologic sections.

42. Idaho County. Triassic. [T. 25 N., R. 1 E.], near town of Lucile, Salmon 

River Canyon. Analyst, R. V. Lundquist. ( Anderson, 1930, p. 55, 59, 

fig. 1.) General: Limestone( marble),dark-bluish-gray,mottled, 

streaked or banded; some white layers; coarsely crystalline; 60-200 ft thick. 

Index map. Possible use: Portland cement, chemical industry, lime. 

Former use: Lime.

43, 44. Idaho County. Triassic. T. 30 N., R. 4E., about 4 miles southeast of town 

ofHarpster. McComas ranch. Analyst, R. V. Lundquist. (Anderson, 1930, 

p. 55, j>9, pi. 7, fig. 1.) General: Limestone ( marble),dark-bluish-gray, 

mottled, streaked or banded; some white layers; coarsely crystalline; 

60-200 ft thick. Index and geologic maps. Possible use: Portland cement, 

chemical industry. Former use: Lime.

45-49. Kootenai County. Cambrian. [Sec. 34, T. 54 N., R. 2 W.], town of

Bayview, southwest shore of Pend Oreille Lake. Washington Brick, Lime, 

and Sewer Pipe Co. Analyst, T. R. Ernst. ( Loughlin, 1914, p. 1381. 

1382, pi. 7; Hodge, 1938d, p. 133. 142, 143.) Deposit: Limestone, 

white, coarse-grained, crystalline; contains evenly disseminated specks of 

pyrite. Mineralogy. Index maps.

45. Use: Lime.

46. [Dolomite.]

47. [Dolomite.]

48. [Dolomite], blue.

49. Old quarry. Limestone. Use: Lime.

50. Lemhi County. Precambrian, Yellowjacket Formation^ Ross, 1934, p. 16). 

[T. 19 N., R. 16 E.], near town of Yellowjacket. Yellowjacket mine. 

Analyst, J. J. Fahey; collector: C. P. Ross. Lab. No. D-259. (Wells, 

1937. p. 52, j>3.) Carbonate rock.

51. Lewis County. Jurassic. Sees. 15, 22, T. 34 N., R. 3 W., near town of 

Sweetwater. Mission Creek deposit. (Hodge. 1938d, p. 133. 145, 146; 

Hodge, 1944, p. 71, 72.) Deposit: Limestone, slate-colored, crystalline; 

contains few quartz seams, some iron stain, traces of coral; at least 300 ft 

thick. Sample: Limestone taken across 65-ft bed. Tonnage estimated. 

Index map. Former use: Flux, lime.
122 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 8. Analyses of samples from Idaho containing more than 90 percent carbonate (Group F^, common-rock category Continued

Chemical analyses Continued

Idaho Continued

SiO2 __________

A12O, _________

Fe20s _________

MgO __________

CaO _________

D C\

CaO/MgO ______

52 53

HF231-4 HF231-3

1.50 1.08

__ _____ '.11

~~ | s.75 4 .19

.75 .51

53.45 54.75

__ _____ *43.50

[56.45] 100.14

0,2,97 1,1,98

Calcite Calcite

54

11F235-10

6.68

( .12 

1 s.60 

.02 

52.29

39.48

*99.19 

6,2.89

Calcite

55

11F235-1

21.65 

30.88

46.10

[98.63] 

0,0,97

Dolomite

56

HF235-28

} '' '

.7 

.1 

54.5

T 43.0

[99.4] 

0.2,97

Calcite

57

11FJ35-33

'5.0

.4 

52.0

T 39.7

[98.9] 

2,5,89

Calcite

58

HF235-29

'2.5

.7

1.0 

53.4

T 41.6

[99.2] 

0,3,94

Calcite

59

11F235-32

'4.8

.8

2.3 

50.3

T 41.2

[99.4] 

3,2,92

Magnesian 

calcite

60

HF^S-SO

'2.6

{ :!

.7 

53.3

'41.8

[99.4] 

1,3,95

Calcite

61

HF235-27

*0.9

Trace 

.4 

.5 

55.1

8 40.2

[97.1] 

0,1.91

Calcite

62

HF^S-25

.1 

.3 

.2 

55.5

8 43.5

[100.3] 

0,1,99

Calcite

63

llF235-24

.1 

.3 

.1 

55.0

8 43.1

[99.3] 

0,1,98

Calcite

64

llF235-23

'0.5

Trace 

.5 

.6 

55.0

8 43.2

[99.8] 

0,1,98

Calcite

Idaho Continued

Si02 __________

AljO, _________

FejO, _________

MgO __________

CaO __________

Na2O+K2O ______

HjO __________

CO2 __________

Class

CaO/MgO ______

65

llF235-26

s

 I 1 0 8

__________ .5

,2

_________ 54.5

_________ 8 42.7

_________ [98.7]

_________ 0,1,97

________ Calcite

66

HF235-2

f 0.48

.48 

Trace 

.17 

55.52 

".28

43.07

100.00 

0,1,98

Calcite

67

HF235-4

0.34

.18 

Trace 

.43 

55.72 

".13

43.20

100 .00 

0,1,98

Calcite

68

llFjSS-ll

| 0.39

.10 

55.34

*43.59

99.52 

0,0.99

Calcite

69

llFj35-5

r 0.12

.20

.25 

55.71

"44.04

[100.32] 

0,0,100

Calcite

70

llFz35-3

0.66

.54

.23 

54.91

"43.39

99.73 

0,1,99

Calcite

71

llFj35-12

( 1.43

".10 

"55.38

"43.57

100.48 

0,0,99

Calcite

72

11F235-13

Nil 

0.58

} '.21

Nil

55.75

B 43.40

99.94 

(0,1)99

Calcite

73

11F235-14

0.24

'.22

53.30

B 43.10

96.86 

0,2.95

Calcite

74

11F235-9

0.35

f .27 

I Trace J 

"3.88 

"50.81

"44.13

99.44 

0.1.99

Magnesian 

calcite

75

llFj36-l

1.78

.30

"l.85 

"52.41

.08

"43.18

[99.60] 

1,1.97

Calcite

76

llFj36-2

1.74

.70

".28 

"54.54

"43.12

100.38 

1,2,97

Calcite

'Acid insoluble, chiefly SiO2 .

* Includes TiO|. trace. 

S R,0,.

*Iion, manganese,and aluminum oxides, 

'includes FeO.

*CO2 , reported as calculated.

'ignition loss, chiefly CC^.

8 CO2 , calculated from reported CaCO3 and MgO.

*H2O-, 0.04 percent, not included in total, 

"calculated from reported MgCO3 and CaCO3 . 

11 Alkalies and undetermined. 

B Ignition loss.
ANALYSES OF SAMPLES 123

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued

52. Lewis County. Jurassic. Sees. 15. 22, T. 34 N., R. 3 W., Mission Creek. 

( Hodge. 1944, p. 15, 71, pi. 10.) Limestone, blue-gray. Tonnage 

estimated. Index maps. Use: Flux, lime.

53. Lewis County. Probably Jurassic. [T. 34 N., R. 3 W.], right bank of 

Mission Creek, in canyon in Craig Mountain uplift. Analyst, 

W. F. Hillebrand. Lab. No. 1905. (Russell, 1901b, p. 120, 121; Hodge, 

1938d, p. 133, 144.) General: Limestone, grayish-blue, hard, few fossils. 

Index map. Former use: Lime. Possible use: Sugar industry, cement rock.

54. Nez Perce County. Precambrian, Belt [Supergroup]. Sec. 21, T. 34 N., 

R. 3 W., 2.5 miles south of St. Joseph Mission at Slickpoo. Mill Creek 

deposit. (Hodge, 1938d, p. 133, 148, J49; Hubbard, 1956b. p. 10, _U, 

figs. 1, 2.) Deposit: Limestone, gray to white or brown; for most part 

coarsely crystalline. Average exposed thickness 200 ft. Tonnage estimated. 

Index and geologic maps. Possible use: Lime.

55. Nez Perce County. Belt [Supergroup]. NE* sec. 22, T. 37 N.. R. 2 W. 

Bedrock Creek deposit quarry, Idaho Lime and Marble Co. ( Hubbard, 

1956b, p. 11, 12, fig. 2.) [Dolomite] dolomitic limestone, fractured, 

recrystallizedt in two beds, one bed 85 ft thick. Tonnage estimated. 

Geologic map. Possible use: Cement, lime.

56. Nez Perce County. Late Triassic, Martin Bridge Formation. T.32N.,

R. 5 W., Lime Point area. Sample 5Bm or T-140. ( Savage, 1965, p. 18a, 

18b, 18c, 19, 20, pis. 1, 2, fig. 1.) Limestone, composite sample. 

Tonnage estimated. Index and geologic maps, geologic section. Possible 

use: Aggregate, ballast, portland cement, flux, lime.

57 - 64. Nez Perce County. Martin Bridge Formation. NWj sec. 34, T. 32 N., 

R. 5 W., Lime Point. ( Savage, 1965, p. 18a. 18b, 19, 20, pis. 1, 2, 

fig. 1.) Tonnage estimated. Index and geologic maps, geologic section. 

Possible use: Aggregate, ballast, portland cement, flux, lime.

57. Analyst, George Hsu. Sample !Cm2 or S. L. 164. Sample: Limestone, composite sample.

58. Analyst, Huey-rong Hsi. Sample 2Gm2. Limestone, average of 

eight samples.

59. Analyst, Huey-rong Hsi. Sample 2Im. Limestone.

60. Sample 2Em; Lot No. 6. Limestone.

61. Sample 2Dm; Lot No. 5. Limestone.

62. Sample 2Cm; Lot No. 4. Limestone.

63. Sample 2Am2; Lot No. 2. Limestone, surface sample.

64. Sample !Am2; Lot No. 1. Limestone, composite sample.

65. Nez Perce County. Martin Bridge Formation. [Probably] NW? sec. 34, 

T. 32 N., R. 5 W., general vicinity of Lime Point ridge. Sample 2Bm; 

Lot No. 3. ( Savage, 1965, p. 18a, 18b, 19, 20, pis. 1, 2, fig. 1.) 

Limestone. Tonnage estimated. Index and geologic maps, geologic section. 

Possible use: Aggregate, ballast, portland cement, flux, lime.

66,67. Nez Perce County. Martin Bridge Formation. NW? sec. 34. T. 32 N.,

R. 5 W., Snake River Canyon, 1 to 3 miles above mouth of Grande Ronde 

River. Lime Point deposit, Idaho Portland Cement Co. Analyst,

Idaho Continued

A. B. Lort. Collector, H. S. Gale. Test No. 11359. ( Eckel, 1913, 

p. 137,^38; Loughlin, 1914, p. 1382. 1383, pi. 7; Hubbard, 1956b, 

p. J.2. 13, fig. 2; Savage, 1965, p. 18a, 18b, 19, 20, pis. 1, 2, fig. 1.) 

Limestone, gray to white, massive. Tonnage estimated. Index and geologic 

maps, geologic section. Use: Portland cement. Possible use: Aggregate, 

ballast, flux, sugar industry, lime.

66. Lab. No. 3743. Sample: Represents large body of massive limestone; 

average of 121 samples chipped at approximately uniform intervals 

throughout tunnel of 100 ft.

67. Lab. No. 3744. Sample No. 2Fm. Average of about 30 samples from 

outcrop; represents about 50 ft in thickness.

68. Nez Perce County. Late Triassic( Savage, 1965, p. 8a). [Ts. 31, 32, N., 

R. 5 W.], 1 to 3 miles above mouth of Grande Ronde River and about 

8 miles farther upstream, Snake River Canyon. Analyst, George Steiger. 

(Russell, 1901a, p. 28, pis. 1, 2j Russell, 1901b, p. 120,221.) Limestone. Index and geologic maps. Possible use: Portland cement, sugar 

industry, building stone.

69. Nez Perce County. Late Triassic( Savage, 1965, p. 8a). [T. 31 N.,

R. 5W.], Lime Point. Analyst, H. C. Johansen. (Shedd, 1913, p. 117, 

119.) Limestone, dark-gray, fine-grained, carbonaceous. Use: Cement 

material [ implied].

70. Nez Perce County. Probably Triassic. [T. 31 N., R. 5 W.], Lime Point.

Analyst, Elton Fulmer. ( Shedd, 1913, p. 117, 119; Mills, 1962, p. 239- 

241, 243.) General: Limestone, dark-gray to gray, cryptocrystalline to 

fine-grained; beds 1/16 in. - 4 ft; most units siliceous and (or) argillaceous; carbonaceous, some calcite. Tonnage estimated. Index and 

geologic map. Possible use: Cement material.

71. Nez Perce County. [Near] Taplin. West Coast Portland Cement Co.

Analysts, W. F. Hillebrand, George Steiger. ( Burchard, 1912, p. 663.) 

Limestone. Use: Quarried [use not given].

72, 73. Nez Perce County. T. 35 N., R. 3 W., 6.7 miles south of Jacques Spur on 

the Camas Prairie Railroad in Lapwai Indian Reservation. Lewiston Lime 

Co. quarry. ( Hodge, 1944, p. N>, 71, pi. 10; Libbey, 1957, p. 30, 34, 

35.) Limestone. Tonnage estimated. Index maps. Use: Pulp and paper 

industry, sugar industry, flux.

72. Analyst, C. F. Zeuch.

73. Analyst, C. R. Cramer.

74. Nez Perce County. [T. 36 N., R. 2 E., near] town of Orofino. Clearwater 

Lime Co. (Burchard, 1912, p. 663, pi. 1.) Limestone. Index map. Use: 

Quarried [ use not given].

75. Oneida County. Paleozoic*?). [T. 16 S., R. 37 E., near] town of

Franklin. Amalgamated Sugar Co. ( Burchard, 1912, p. 663, pi. 1; 

Loughlin, 1914, p. 1383, 1384.) Limestone. Index map. Use: Sugar 

industry [ implied].

76. Oneida County. [T. 16 S., R. 37 E., near] Franklin. Le Roy Quarry Co.

(Burchard, 1912, p. 663. pi. 1.) Limestone. Index map. Use: Quarried 

[use not given].
124 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 9. Analyses of samples from Oregon containing mote than 90 percent carbonate (Group F;), common-rock category

[ Chemical analyses arranged by county and stratigraphic position] 

Chemical analyses

Si02 _ ________ 

A1 20, 

Fe20, 

.MgO _____________

CaO ______________

Na2O ______________

if r\

Pj05 ______________

C02 ______________

s _ _ _____

CaO/MgO ___________

1 2

36F2 1-10

_____ 3.72 4.20

_____ .40 .21

_____ .41 .29

_____ .04 .23

_____ 53.94 53.38

_____ 41.24 41.78

_____ _____ .02

.01

_____ 99.80 100.11

_____ 3,2,94 _____

_____ Calcite ____ _

3

36F2 1-11

0.53 

.39 

| ( 

J ' 7 1 

.09 

55.39

42.31

[99.68] 

0,1,96 

Calcite

4

36F2 l-7

1.60 

i.24

.36 

54.67

Oregon

5

36F2 l-45

0.384 

j} 2 .106 

.178 

55.0

4 .02

[56.87] [55.7] 

1,1.98 0,0.99 

Calcite Calcite

6

36F2 1-13

0.96

( :«

.23 

55.24

42.20

99.27 

0,2.96 

Calcite

7

36F2 1-1

0.04 

.18 

f .32

^~___ 

.84 

54.72

] .30

.032 

43.80

.017

[100.25] 

0,0,99 

Calcite

8

36F2 l-2

0.06 

.18 

.31

1.24 

54.57

.006 

43.61

.011

[99.99] 

0,0,99 

Calcite

9

36F2 l-3

0.12 

.10 

.28

3.04 

 * 52.64

.009 

43.95

.018

10

36F2 1-15

"None 

None 

'None 

None

0.52 

55.65 

( Trace 

\ Trace 

None 

43.93

5 None

[100.16]6 [ 100.10]

0.0,99 0,0,100

Magnesian . 6 Calcite calcite

11

36F2 1-17

1.13

.75 

54.79

43.04

[100.14] 

0,1,97 

Calcite

12

36F2 l-35

1.99 

'.47

1.03 

54.07

42.88

100.44 

1,1,97 

Calcite

Oregon Continued

Si02 __ _____ _____

A120, _____________

Fe20, _____________

MgO ___________ __

CaO _ ___________

D /-\

C02 

c

Total _________

13 14

36F2 l-22

_____ 1.27 2.64

_____ 2.58 .76

_____ .52 .24

, _____ 6.10 6.09

_____ 46.73 47.32

. _____ _____ 43.37

. _____ 100.27 100.44

Magnesian

calcite

15 16

36F-1-41

3.75 

1.79 

.37 

6.44 

44.50

41.80

98.65

Magnesian 

calcite

4.34 

1.55 

.39 

6.58 

45.20

.03

42.18

100.27

17 18

36F2 l-42

5.85 

2.35 

.73 

13.18 

35.58

99.60

Calcareous

dolomite

6.56 

2.40 

.58 

13.33 

35.50

.02 

42.13

100.52

19 20

36F2 l-59

4.82 

1.00 

.72 

2.40 

49.91 

.01 

40.59 

.02

99.47 

2,5,91

Magnesian

calcite

5.16 

.78 

.44 

2.43 

49.88

.01 

41.51

100.21

21

36F2

1.09 

2.44 

.37 

.26 

53.36

42.08

99.60 

0,2.96

Calcite

22

1-19

2.46 

.23 

.39 

.34 

53.88

.02

42.77

100.09

23

36F

0.41 

.29 

.57 

1.31 

54.04

43.16

[99.78] 

0,1,98

Calcite

24

2 l-39

0.66 

.10 

.68 

1.37 

53.96

.02 

43.61

[100.40]

Oregon Continued

SiO2 _ ___________

A120, .

Fe203 .

MgO ___ ________

CaO ___________ _

CO2 ______________

S ________________

25 26

36F2 l-23 36F2 l-33

. _____ 0.94 1.76

. ) 2 A2 Z 1>03

._ ____ .55 .75

. __ __ 55.03 54.25

. _____ 43.12 42.78

. _____ 100.06 100.57

27

36F2 l-36

2.53 

2 1.05

.44 

53.33

42.07

99.42 

1,3,95 

Calcite

28 29

36F2 l-26 36F2 1-31

1.07 

2 .46

.72 

54.70

43.91

7 100.86 

0,1,99 

Calcite

1.55 

2 .50

.66 

54.74

42.67

100 . 12 

1,1.96 

Calcite

30

36F2 l-25

1.05 

2 .54

.72 

54.73

43.10

100 . 14 

0,2,97 

Calcite

31

36F2 l-27

1.22 

2 .47

1.28 

54.18

42.89

100.04 

0,1,97 

Calcite

32

36F2 l-28

1.33 

2 .71

.64 

54.94

43.08

100 . 70 

0,2,97 

Calcite

33

36F2

1.04 

( .68 

i .45 

.35 

54.50 

.016 

42.15 

.008

99.19 

0,2,96 

Calcite

34

1-24

1.56 

.45 

.29 

.63 

54.16

.01 

43.01

100.11

35 36

36F2 1-30

1.45 

1.18 

.52 

.60 

53.36 

.028

42.39

.013

99.54 

0,3,96

Calcite

2.30 

.77 

.39 

.67 

53.56

None 

42.46

100 . 15

'Reported as trace (Wells, 1937, p. 59) .

2 R20,.

'Reported as R2O3 (A1-O3 , Fe2Os , and so forth).

4 Calculated from reported P.

5 Mere traces not determined (Wells, 1937, p. 59) . 

*TiO2 , Li2O, FeS2 , H2O, organic, none; MnO, trace. 

'Reported in text as 99.96 percent.
ANALYSES OF SAMPLES 125

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon

1, 2. Baker County. Probably pre-Carboniferous, limestone in Burnt River Schist. 

T. 12 S., R. 41 E., southwest of town of Durkee, on Burnt River. ( Hodge, 

1938d, p. 154, 199, 236, 237, 243, 244, 245.) Limestone, less than 200 

ft thick. Tonnage estimated. Index and geologic maps.

1. USED sample 20; sample 1. Analysis used in computations.

2. Sample 2. [Apparently aliquot analysis.]

3. Baker County. Probably pre-Carboniferous, limestone in Burnt River Schist. 

NW* sec. 12, T. 12 S., R. 42 E., southwest of Durkee. USED sample 

260B. ( Hodge, 1938d, p. 154, 199, 236, 237, 244, 245.) Limestone, 

chip sample. Tonnage estimated. Index and geologic maps.

4. Baker County. Probably pre-Carboniferous, limestone in Burin River Schist. 

Sec. 11, T. 12 S., R. 43 E., 3.75 miles south of Durkee. Nelson deposit. 

( Hodge, 1938d, p. 154, 199, 236-238, 240.) General for deposit: Limestone, interbedded with chert and argillite; beds 600-700 ft thick. Index 

and geologic maps.

5. Baker County. Early Permian to Late Triassic, Elkhorn Ridge Argillite.

Sec. 14, T. 9 S., R. 38 E., about 8 miles west of Wingville. ( Libbey, 

1957, p. 37, 41, 42.) Limestone, average analysis of 180 drill samples; 

at least 325 ft thick. Tonnage estimated. Index map. Possible use: 

Chemical grade lime.

6. Baker County. Permian to Late Triassic, limestone in Clover Creek Greenstone. NWi sec. 18, T. 7 S., R. 42 E., Table Mountain deposit. ( Hodge, 

1938d, p. 154, 199, 250, 255, 256, 257.) General: Limestone, blue-gray, 

fine-grained, massive. Tonnage estimated. Index and geologic maps.

7-9. Baker County. Triassic. Parts of sees. 27-29, 32-34, T. 11 S., R. 45 E., 

about 20 miles north of town of Huntington, at head of Connor and Fox 

Creeks. (Hodge, 1938d, p. 154, 221, 222, 227, 229, J231; Libbey, 1957, 

p. 37, 38, 42-44.) General: Limestone (marble),gray to white, massive, 

fine-grained, crystalline. Tonnage estimated. Index and geologic maps. 

Former use: Building stone. Possible use: Agricultural [implied], portland 

cement.

7. USED sample 28. Sample from interior of boulder.

8. USED sample 26.

9. USED sample 27.

10. Baker County. Triassic. Sec. 28, T. 11 S., R. 45 E., on Fox Creek. 

Analyst, J. G. Fairchildj collectors, R. W. Richards, B. N. Moore. 

Lab. No. D-63. ( Moore. 1937, p. 136, 139. pis. 1. 14; Wells, 1937, 

p. 58, j>9.) Limestone. Bulk density 2.68. Tonnage estimated. Index 

and geologic maps. Use: Dimension stone.

11. Baker County. [Probably Triassic. T. 13 S., R. 44 W.], town of Lime, 

5 miles northwest of Huntington. Oregon Portland Cement Co. ( Hodge, 

1935a , p. 114, 115, pi.25.) Limestone , average analysis. Tonnage 

estimated. Use: Portland cement, lime. Possible use: Flux.

12. Baker County. Triassic. T. 13 S., R. 44 E., Lime,on Burnt River about 5 

miles above Huntington. Oregon Portland Cement Co. quarry. Analyst, 

Lugnet. ( Moore, 1937, p. 142-^44, pis. 1, 15.) General: Limestone; 

bluish gray or white when fresh; light gray when weathered; recrystallized; 

possibly contains some fossils. Index and geologic maps. Use: Cement 

material.

13, 14. Baker County. Probably Triassic. [T. 13 S., R. 44 E.], 0.5 mile south of

Windy Point. ( Hodge, 1938d, p. 154, 199, 201, 206, 210, 211, 213. 215.) 

General for Lime area: Limestone, bluish-gray, dense, massive; weathers 

nearly white; beds range from 2 to 20 ft in thickness; limestone 1.000- 

1,500 ft thick; overburden thin. Index and geologic maps.

13. Analysts, G. C. Ware, Kenneth McCleod. USED sample 12. Analysis 

used in computations.

14. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

15-18. Baker County. Probably Triassic. [T. 13 S., R. 44 E.], highway cut at

Windy Point. ( Hodge, 1938d. p. 154, 199, 201, 206, 209-211, 213, 215.)

Oregon Continued

General: Magnesian limestone, bluish-gray, dense, massive; weathers 

nearly white; beds range from 2 to 20 ft in thickness; limestone 1,000- 

1,500 ft thick; overburden thin. Index and geologic maps.

15. Analysts, G. C. Ware, Kenneth McCleod. USED sample 1. Analysis 

used in computations.

16. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

17. Analysts, G. C. Ware, Kenneth McCleod. USED sample 2. Calcareous 

dolomite. Analysis used in computations.

18. Analyst, M. J. O'Dell. Calcareous dolomite. [Apparently aliquot 

analysis.]

19, 20. Baker County. Probably Triassic. SWi sec. 26, T. 13 S., R. 44 E., north of 

Marble Canyon. (Hodge, 1938d, p. 154, 199, 201, 206, 209, 213. 215.) 

General: Limestone, bluish-gray, dense, massive; weathers nearly white. 

Some limestone recrystallized to sugary, nearly white marble. Index and 

geologic maps.

19. Analysts, G. C. Ware, Kenneth McCleod. USED sample 17. Analysis 

used in computations.

20. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

21, 22. Baker Connty. Probably Triassic. [Possibly sees. 26, 35, T. 13 S.,

R. 44 E.], near Lime. East of quarry of Oregon Portland Cement Co. 

( Hodge, 1938d, p. 154, 199, 201, 206, 210, 211, 213, 215, 219.) 

General: Limestone, bluish-gray, dense, massive; weathers nearly white; 

beds range from 2 to 20 ft in thickness; thickness of limestone 1,000- 

1,500 ft; overburden thin. Tonnage estimated. Index and geologic maps.

21. Analysts, G. C. Ware, Kenneth McCleod. USED sample 11. Analysis 

used in computations.

22. Analyst, M. I. O'Dell. [Apparently aliquot analysis.]

23, 24. Baker County. Probably Triassic. Sec. 27, T. 13 S., R. 44 E., near Lime. 

Oregon Portland Cement Co. (Hodge, 1938d, p. 154, 199, 201, 206, 210, 

213, 215, 219.) General: Limestone, bluish-gray, dense, massive; 

weathers nearly white; beds range from 2 to 20 ft in thickness; thickness of 

limestone 1,000-1,500 ft; overburden thin. Sample: Druse of nearly pure 

calcite, lining cavity. Tonnage estimated. Index and geologic maps.

23. Analysts, G. C. Ware, Kenneth McCleod. USED sample 6. Analysis 

used in computations.

24. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

25-36. Baker County. Probably Triassic. si SEi sec. 27 and Ns NEi sec. 34,

T. 13 S., R. 44 E., Lime. Oregon Portland Cement Co. quarry. ( Hodge, 

1938d, p. 154, 199. 201, 206, 209-^12, 214, 219.) General: Limestone 

and magnesian limestone, bluish-gray, dense, massive; weathers nearly 

white; beds range from 2 to 20 ft in thickness; thickness of limestone 1,000- 

1,500ft; overburden thin. Tonnage estimated. Index and geologic maps. 

Use: Portland cement [ implied].

28. Sample: Average of seven analyses for 1928.

29. Sample: Average of eleven analyses for 1930.

30. Sample: Average of eight analyses for 1931.

31. Sample: Average of four analyses for 1932.

32. Sample: Average of six analyses for 1935.

33. Analysts, G. C. Ware, Kenneth McCleod. USED sample 16. Analysis 

used in computations.

34. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

35. Analysts, G. C. Ware. Kenneth McCleod. USED sample 29. Analysis 

used in computations.

36. Analyst, M. I. O'Dell. [Apparently aliquot analysis.]

487-187 O - 73 - 9
126 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 9. Analyses of samples from Oregon containing more than 90 percent carbonate (Group F,), common-rock category Continued

Chemical analyses Continued

Oregon Continued

SiO, __________

Al,0, 

pp.O.

MgO __________

CaO __________

P,0. __________

CO, __________

s ____________

Total _____

37

36F|l-32

1.64

1.39

.65

.61

53.38

.01 _

41.64

.01

38

2.66 

.91 

.19 

.70 

53.34

.01 

42.23

99.33 100.04

39

36FS

1.86 

.94 

.45 

.28 

54.11 

.02 

41.70 

.06

99.42

40

1-34

2.18 

.34 

.36 

.45 

53.98

.04 

42.70

100.05

41

36F,

2.87 

1.22 

.66 

.45 

53.07 

.086

.014

99.63

42

1-37

3.04 

1.09 

.39 

.68 

52.80

.01

100.14

43

36F,

4.74 

2.22 

.74 

.79 

50.89 

.03

40.60

.06

100.07

44

1-38

5.02 

.63 

1.23 

1.12 

50.82

Trace 

41.17

99.99

45

36Fjl0.83 

1.08 

.46 

1.26 

54.40 

.017 .

41.85 .

.06

[99.96]

46

55

1.28 

.54 

.20 

1.44 

53.66

.02 

43.29

100.43

47

36Fj

1.95 

3.50 

.38 

13.17 

38.35

44.15

101.50

48

1-40

2.58 

1.40 

.44 

13.18 

38.54

.03

44.23

100.40

49

36F,1-20

2.04 

1.11 

.64 

2.59 

51.23

42.05

99.66

Class. 0.3,94 _____ 0,3.95 _____ 0,5,94 _____ 0,8,92

CaO/MgO ______ Calcite _____ Calcite ___

Calcareous

dolomite

Magnesian

calcite

Oregon Continued

SiO, __________

Al,0, _________

Fe,0, _________

FeO __________

MgO __________

CaO ________

IT f*

CO, __________

s ____________

Total _____

Class __________

CaO/MgO _______

50

36F,1-20

2.62

.57 

.39

2.77

51.06

100.17

51

36F,1-

2.23

.76 

.70

1.84

52.18

/

99.39

0,4,94 _

Calcite

52

21

2.70

.23 

.73

2.00

51.88

100 .23

53

36F,l-44

2.77

.64

I .53

4.42

49.90

99.72

1.3,92

Magnesian 

calcite

54

36F,

0.64

.21

.71

54.88

A*} Q-f

'.22

[100.82]

0.1.99

Calcite

55

1-47

0.26

.45 

.34

.58

55.17

42.51

[99.36]

56

36F,l-48

0.20

.02

.14

56.04

*42 62

[99.44]

0.0,97

Calcite

57

36F, 1-49

0.71

.05 

f '.12

1.55

53.76

43.87

[100.06]

0,0,99

Calcite

58

36F,1-50

0.07

.03 

'.08

.22

55.76

JO QQ

[ 100 . 15 ]

0 .0 . 100

Calcite

59

36F,l-52

0.40

f 1.58

4 .13

4 54.41

4 42.87

.03

T 99.42

0.1,97

Calcite

60

36F,l-4

'0.85

'.25

4 .33

4 55.01

443.56

[100.00]

(0,1)99

Calcite

61

36Fjl-5

'6.19

*1.20

4 .44

4 50.16

4 39.85

[97.84]

(4,4)90

Calcite

62

36F,1-61

8.00

/ .80 

\ 4 .57

4.5

49.4

[63.3]

6,3,87

Magnesian 

calcite

Oregon Continued

SiO, ___ ___

AljO, ______

FejO, 

MgO _______

CaO _______

H,O _______

CO, _______

SrO ________

63 64

36F,1-60 36F,l-56

____ _____ 1.41

_____ ______ } ' 50

. ____ 53.60 54.00

65

36F,10-1

3.92

{ .61

.60

51.92

'41.11

66

36F,10-2

4.11

.72

.64

51.68

'40.91

67 68

36F,10-4 36F,10-3

' 0.78 ______

.33 ______

56.46 4 54.61

'41.18 4 42.9

69

36F,10-25

'2.4

4 54.7

4 42.9

70

36F,10-21

1.20

i *.90

4 .38

4 54.63

4 43.29

71

36F,10-22

1.84

'1.44

4 .54

4 53.93

4 42.94

72

36F,10-23

2.67

( .55

1 .70

.33

53.84

41.41

73

36F,12-1

2.08

.50

.34

.16

54.05

.17

.31

.10

42.50

*None

74

36F,15-22

0.92

4 .40

4 55.03

4 43.63

75

36F,15-25

3.1

2.2

4 2.5

4 50.1

4 42.1

Total

Class.

[53.60] [56.91] 99.80 99.97 [100.28] [97.5] [100.0] [100.40] 

0,0.96 1.1.97 0,6.92 0,7,91 0,1,93 0.0,97 (2,0)98 0,2,98

CaO/MgO.

[100.69] 99.50 *100.21 [99.98] [100.0] 

0,3,97 1,3,94 1.2,97 1.0,99 1.4.95

Magnesian

Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite

'insoluble.

'iron and aluminum oxides; samples 70, 71, 

iron oxide and alumina.

'Reported as FejO, (total Fe).

Calculated from reported Fe, CaCO, and(or) MgCO,.

'ignition loss.

*SO,.

7 100.00 percent in text.

'Mere trace not determined (Wells, 1937, p. 59) .

*K|O, TiOj, P,Oj, and organic matter reported as 

trace; SO,, UjO, FeS,, reported as none.
ANALYSES OF SAMPLES 127

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Oregon Continued

37-52. Baker County. Probably Triassic. SiSEi sec. 27 and NiNEi sec. 34,

T. 13 S., R. 44 E., near town of Lime. Oregon Portland Cement Co. 

quarry. (Hodge, 1938d, p. 154, 199, 201, 206, 209-211, 213, 214, 215, 

219.) General: Limestone and magnetian limestone, bluish-gray, dense, 

massive; weathers nearly white: beds range from 2 to 20 ft in thickness; 

thickness of limestone 1,000-1,500 ft; overburden thin. Tonnage estimated. 

Index and geologic maps. Use: Portland cement [implied].

37. Analysts, G. C. Ware, Kenneth McCleod. USED sample 10. Analysis 

used in computations.

38. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

39. Analyst!. G. C. Ware, Kenneth McCleod. USED sample 9. Analysis 

used in computations.

40. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

41. Analysts, G. C. Ware, Kenneth McCleod. USED sample 13. Analysis 

used in computations.

42. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

43. Analysts, G. C. Ware. Kenneth McCleod. USED sample 8. Analysis 

used in computations.

44. Analyst, M. J. o'Dell. [Apparently aliquot analysis.]

45. Analysts, G. C. Ware, Kenneth McCleod. USED sample 7. Analysis 

used in computations.

46. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

47. Analysts, G. C. Ware. Kenneth McCleod. USED sample 5. [Calcareous dolomite.] Analysis used in computations.

48. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

49. Analysts, G. C. Ware, Kenneth McCleod. USED sample 15. Analysis 

used in computations.

50. Analyst, M. J. O'Dell. [Apparently aliquot analysis.]

51. Analysts, G. C. Ware, Kenneth McCleod. USED sample 14. Analysis 

used in computations.

52. Analyst, M. J. O*Dell. [Apparently aliquot analysis.]

53. Baker County. Pre-Tertiary. Sec. 4, T. 6 S., R. 44 E., Granite Cliff, Eagle 

Creek Valley. USED sample 26IB. ( Hodge, 1938d, p. 154. 199, 250. 

252, 254.) General: Limestone, mainly gray, massive, coarsely crystalline; 

part white and thin bedded; contains pyritic masses. Tonnage estimated. 

Index and geologic maps.

54, 55. Baker County. Tertiary or younger [implied]. [Either] Ej sec. 36, T. 11 S., 

R. 42 E., [or] SWi sec. 11, T. 12 S., R. 43 E. J. H. Prescott claim. 

(Hodge, 1938d, p. 154. 199. 236. 245, 246.) Travertine, 20-30 ft thick. 

Index and geologic maps.

54. Analysis used in computations.

55. USED sample 19. [Apparently aliquot analysis.]

56. Baker County. NE< sec. 14. T. 9 S., R. 38 E., 12.9 miles from town of

Baker, on Marble Creek. USED sample 258B. ( Hodge, 1938d. p. 154, 199, 

250, 257, 258.) Limestone, medium-gray, fine-grained, structureless. 

Chip sample across quarry face. Tonnage estimated. Index and geologic 

maps. Former use: Lime.

57. Baker County. [SW^ T. 9 S., R. 37 E.].Marble Creek. Analyst,

W. C. Wheeler; collector, J. T. Pardee. Record 3055. ( Wells. 1937, 

p. j>9.) Limestone.

58. Baker Connty. [SW< T. 9S., R. 37 E.], Marble Point. Analyst,

W. C. Wheeler; collector, J. T. Pardee. Record 3055. ( Wells, 1937, 

p. j>9.) Limestone.

Oregon Continued

59. Baker County. [T. 10 S., R. 41 E.. near] town of Pleasant Valley. Portland 

Ume and Lumber Co. Analyst. E. A. Akerly. ( Burchard, 1912, p. 683, 

pi. 1.) Limestone. Index map. Use: Quarried [use not given].

60, 61. Baker County. Parts of Tps. 11, 12 S.. Rs. 41-43 E., Durkee-Burnt River 

area. National Industrial Products Corp. quarry. ( Wagner, 1958, 

p. 44, 46.) Limestone, massive, crystalline. Index map.

60. Composite analysis of 1040 carloads of limestone. Use: Cement, 

paper industry, sugar industry.

61. Quarry waste.

62. Baker County. [T. 12 S.. Rs. 37-43 W.], Burnt River Canyon. ( Walsted, 

1954, p. 34.) Limestone. Use: Portland cement. Possible use: Flux.

63. Baker County. Parts of Tps. 12, 13 S., R. 44 E., and Tps. 11. 12 S..

R. 45 E., with minor lap into T. 11 S., R. 46 E., Connor Creek occurrence. 

( Wagner, 1958, p. 44, 46.) Limestone, channel sample. Index map.

64. Baker County. [T. 14 S., R. 44 E.], 3 miles west of town of Huntington. 

The Oregon Portland Cement Co. (Hodge, 1944. p. _15, 81-83, pi. 11.) 

Limestone. Tonnage estimated. Index map. Use: Cement.

65, 66. Douglas County. [Late Jurassic and Early Cretaceous, Myrtle Group.]

SE corner sec. 20, T. 28 S., R. 5 W. Oregon Portland Cement Co. quarry. 

( Hodge, 1938d, p. 272-276.) Limestone. Index map. Former use: 

Portland cement.

65. Average analysis of limestone for the year 1929.

67, 68. Douglas County. SWi sec. 30, T. 28 S., R. 5 W., 2 miles southeast of 

town of Carnes. Fisher property. Limestone, chip sample. Index map.

67. [Late Jurassic and Early Cretaceous, Myrtle Group.] USED sample 

99B. ( Hodge, 1938b, p. 272-274.)

68. ( Peterson, 1958, p. 34. 35.)

69. Douglas County. Sec. 21, T. 28 S., R. 5 W., 11 miles from town of

Roseburg. Harrington deposit. ( The Ore.-Bin. 1943, p. 66.) Limestone; 

tonnage estimated.

70, 71. Douglas County. [T. 28 S., R. 6 W.], south of Roseburg, along railroad.

3.5 miles from Greens station. (Williams, 1914, p. j>9, 60.) Limestone, 

massive; outcrops 50-75 ft thick. Tonnage estimated. Possible use: 

Portland cement.

70. Sample from outcrop and old quarry.

71. Sample from outcrop.

72. Douglas County. [T. 27 S., R. 6 W.], near Roseburg. Analyst,

W. Michaelis. ( Eckel. 1913, p. J308.) Limestone, dark-gray, finegrained, dense; physical tests. Possible use: Cement.

73. Grant County. Jurassic. Sec. 18. T. 17 S., R. 26 E., on Jackass Creek. 

Analyst, J. G. Fairchild. Record D-63. ( Moore, 1937, p. 147. 148. 

pi. 1; Wells. 1937. p. 58, 59.) Limestone, light-gray; composed of shells; 

finely crystalline except for larger shells; 15 ft exposed. Bulk density 2.73. 

Index map. Possible use: Quicklime and lime products.

74. Jackson County. Devonian. Sec. 16, T. 36 S., R. 3 W., 1 mile northwest 

of town of Gold Hill. Analyst, P. H. Bates. ( Darton, 1909, p. 28, ^9; 

Oilier. 1914, p. 11, 15. JU3, 17, pis. 4, 10.) Limestone. Index and" 

geologic maps. Use: Flux. lime. Possible use: Cement.

75. Jackson County. Devonian. Sec. 13, T. 36 S., R. 4 W., 3 miles west of 

Gold Hill, near Rock Point. Analyst, J. S. Phillips. ( Eckel, 1905, 

p. 278, 324; DUler, 1914, p. 10, 11, 15,^6, pi. 4.) Limestone, 

crystalline. Index and geologic maps. Use for limestone in area: Flux, 

lime, building stone.
128 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 9. Analyses of samples from Oregon containing more than 90 percent carbonate (Group F^ common-rock category Continued

Chemical analyses Continued

Oregon Continued

StOj ________ .

A120, .

Fe,0, .

MgO ________ .

CaO _______ .

H_n

C02 .

S __________ .

Class _______ .

CaO/MgO _____ .

76

36F2 15-12

0.31

' \ .44

.03

55.34

.56

43.23

[99.91]

. _ 0.1.98

Calcite

77

36F2 15-13

0.37 

.20

.01 

55.71 

.37 

43.54

[ 100 .20 ] 

0.1,99

Calcite

78 79

36F2 15-15 36F2 15-2

0.53 6.27

 "{ -5

Trace .23 

55.05 52.00

.50 ______

43.25 *40.67

[99.85] 100.12 

0,1,98 5.3,92

Calcite Calcite

80 81

36F2 15-3 36F2 15-5

0.61 2.63 

.21 1.18 

.23 .68 

.34 .60 

55.44 53.13

*42.05 41.23 

_____ .03

[98.88] 99.48 

0,1.95 0,5.94

Calcite Calcite

82

36F2 15-4

3.84 

.85 

.68 

.59 

52.78

40.77 

.02

99.53 

2,4.92

Calcite

83

36F2 15-9

0.94 

.50 

.37 

.78 

55.15

42.44 

.02

100.20 

0.2.96

Calcite

84

36F2 15-10

1.63 

.45 

.30 

.28 

54.73

42.32 

.03

99.74 

1.2.96

Calcite

85

36F2 15-24

S 53.96

'42.35

[96.31] 

0,0,96

Calcite

86

36F2 15-29

0.93 

.31

.34 

4 54.20

*42.31

98.50 

0.2,96

Calcite

87

36F2 17-3

*0.20

J.10 

'55.63

'43.77

[99.70] 

(0.0)99

Calcite

88

36F2 17-5

2 0.40

'.38 

'55.24

'43.78

[99.80] 

0,0.99

Calcite

Oregon Continued

Si02 _______ .

Al,0, .

Fe,0, .

MgO '_.

CaO ________ .

H,0 ________ .

C02 .

Total ____.

Class ________ .

CaO/MgO _____ .

89

36F2 17-4

0.23

 ~~ 1 .28

.03

__ 55.28

.50

__ 43.57

T 99.89

0,1.99

__ Calcite

90

36Fjl7-19

1.00 

'.80

.40 

54.60

[56.80] 

0,2.98 

Calcite

91 92

36F2 17-2 36F2 17-1

0.06 0.05 

.62 { -

Trace .34 

55.38 55.61

.40 ______

43.51 '42.88

[99.97] [99.37] 

0,0,99 0.0.97 

Calcite Calcite

93 94

36F2 17-13 36F2 17-36

0.13 0.71

None '.53 

55.55 '55.20 

.26 _____

_____ '.05

43.63 J 43.92

[99.95] [100.73] 

0.0.99 0,1,99 

Calcite Calcite

95

36F,17-9

0.87 

.35 

.31 

.80 

54.60

'43.41

100.34 

0.2.98 

Calcite

96

36F2 17-7

0.06 

.01 

.31 

.33 

55.85

'42.09

[98.65] 

0,0,96 

Calcite

97

36F2 17-11

2.31 

1.72 

.33 

.41 

54.06

'41.33

100.16 

0.4,93 

Calcite

98

36F2 17-8

0.34 

.06 

.32 

.25 

55.44

5 42.07

[98.48] 

0,1,95 

Calcite

99

36F2 17-10

1.73 

1.69 

.30 

.40 

54.16

'41.57

99.85 

0.3,94 

Calcite

100

36F2 17-12

3.20 

.93 

.30 

.36 

54.05

'40.74

99.58 

1.4.92 

Calcite

101

36F2 17-68

2.1

Trace

54.3

42.6

100.2 

0.3.97 

Calcite

Oregon Continued

SiO2 _______ .

A120, .

Fe,0, .

MgO .

CaO ________ .

K20 .

H,0 ________ .

P,05 ________ .

CO2 ________ .

S __________ .

Organic matter __.

Class _________

CaO/MgO ______

102

36F2 17-20

__ '0.06

__ .90

__ 55.10

'43.88

[99.94]

.__ 0.1.98

.__ Calcite

103

36F2 17-27

'53.37

'41.89

[95.26] 

0,0,95 

Calcite

104 105

36F232-1 36F232-11

0.83 0.15 

.62 2.08 

.58 .36 

1.36 .47 

53.76 54.51

I .30

.02 .02 

42.73 42.48 

.09 .02

[99.99] [100.39] 

0,1,97 0,0.96 

Calcite Calcite

106 107

36F,32-2 36F,32-8

0.92 0.14 

.34 1.13 

Trace .31 

.52 1.08 

54.50 54.04

Trace

.10 .01 

Trace .007 

43.18 42.26 

'None . 14 

Trace .82

"99.80 99.94 

0.1,98 0.1.96 

Calcite Calcite

108

36F,32-7

0.01 

1.63 

.31 

.71 

53.73

.01 

.006 

43.12 

.18 

.26

[99.97] 

0.0.98 

Calcite

109

36F,32-10

1.17 

.17 

.12 

1.23 

53.15 

.08

.08

.10 

Trace

42.05 

'None 

1.75

"100.30 

1.3,95 

Calcite

110

36F232-21

1.0

1.0 

'53.92

'.02 

'42.33

*2.12

[100.9] 

0.3.96 

Calcite

111

36F,32-9

1.10 

.23

1.06 

53.37

'.01

'2.12

[57.89] 

1,3.95 

Calcite

112

36F,32-6

1.12 

[ .20 

I .10 

.36 

54.44 

.19

Trace

.20

.05 

43.19

.07

B 99.92 

1.1.98 

Calcite

113

36F,32-5

1.84 

1.46 

.58 

1.11 

53.18

.48 

41.51 

.02

100.18 

0,3,94 

Calcite

114

36F232-4

1.00 

1.20 

.48 

.72 

54.09

.02 

42.22 

.08

100.12 

0.2.96 

Calcite

Oregon Continued

Si02 _________

A120, ________

FejO, ________

MgO _________

CaO _________

PjO, ________

115

36F232- 12

2.76

1.33

.__ 4.79

.__ 48.99

116

36F,32-3

0.12 

Trace 

Trace 

.28 

55.62 

None

117 118

36F232-20 36F232-14

0.38 1.22 

[ '.50 *1.04

1.00 .64 

54.32 53.69 

.006 ______

119' 120

36F232-15 36F232-16

3.10 ______ 

 l.TO ______

.68 20.52 

52.28 32.84

CO, 

Total _ 

Class ___

CaO/MgO

115

36F,32-12

40.73

99.64 

0,5,91

Magnesian 

calcite

116

36F232-3

43.67

U 99.90 

0,0.99

Calcite

117

36F232-20

M[56.22] 

0.1,99

Calcite

118

36F232-14

'42.62

[99.21] 

0,2.96

Calcite

119

36F,32-15

'42.10

[99.86] 

0,5,94

Calcite

120

36Fj32-16

46.60

[99.96] 

0.0.98

Dolomite

'insoluble in acid. 

'includes FeO.

'Calculated from reported MgCOj 

CaCO,. P or C.

4 54.40 percent (Hodge. 1944, p.

'ignition loss.

6 R203 .

15).

T 98.89 percent in text. 

' Include) insoluble.

'so,.

*TiO2 , MnO. reported as trace; SrO. LijO. 

reported as none; FeSj =0.24 percent.

"Total reported as 100.54 percent in text. TiO2 , MnO. Li2O. 

reported as trace; FeO, FeS2 , reported as none; SrO = 0.40 percent.

B TiO2 . MnO, reported as trace; FeO, SrO. 

FeS2 , LijO, reported ai none.

B K2O, MnO, reported as trace; FeO, TiO2 , 

SOj, Li2O, FeS2 , organic matter reported as none; 

SrO, mere traces not determined; Na2O = 0.11 

percent; H2O = 0.10 percent.

USO2 = 0.01 percent.
ANALYSES OF SAMPLES 129

DESCRIPTIVE NOTES

[ Underscored page numbers in reference 

Oregon Continued

76. 77. Jackson County. Devonian. Sec. 2, T. 37 S., R. 3 W.. 4 miles south of 

town of Gold Hill. Householders quarry, Carters quarry. Analyst, 

R.C. Wells. Record 2381, lab. Nos. 7017B, 7017A. ( Oilier and Kay, 

1909, p.51,pl.2; Oilier. 1914, p.10,11,15,^16,17.pi.4.) Limestone. 

Index and geologic maps. Former use: Flux, lime. Possible use: Cement.

78. Jackson County. Carboniferous. Sec. 7, T. 41 S., R. 4 W., south of town 

of Watkins, on Applegate River. Analyst, R. C. Wells. Record 2381; 

lab. No. 7045. (Oilier and Kay, 1909. p. 51, pi. 2; Oilier, 1914, 

p. 10, 11, 15, 16. 17, pi. 4.) Limestone. Index and geologic maps. 

Former use: Flux,lime. Possible use: Cement.

79. Jackson County. Paleozoic. Sec. 11, T. 37 S.. R. 3W., 5 miles southeast of Gold Hill, on South Fork Kane Creek. Oregon Portland Cement 

Co. USED sample 89. ( Hodge, 1938d, p. 282, 299. 311, 312.) Limestone, chip sample; overburden less than 3 ft. Large reserves. Index 

map. Former use: Agricultural, paper manufacture.

80. Jackson County. Paleozoic. NWi sec. 28, NE* sec. 29, T. 38 S.,

R. 1 W., 3.8 miles southwest of town of Phoenix. Briner quarry. ( Hodge, 

1938d. p. 299, 301, JJ02.) Limestone, about 20 ft thick. Tonnage 

estimated. Index map, geologic section. Former use: Lime. 

81, 82. Jackson County. Paleozoic. T. 39 S., R. 2W., north of Little Applegate 

River. USED samples 75, 76. ( Hodge, 1938d, p. 282, 299, 305-307, 

310.) Limestone, black. Index map.

81. Sees. 22-24, Bear Gulch.

82. Sec. 23, Muddy Gulch. Use: None, deposit small.

83, 84. Jackson County. Paleozoic. Sees. 2. 10, 11, T. 41 S., R. 4 W.. in 

Upper Applegate region. Seattle Bar deposit. USED samples 78, 79. 

( Hodge. 1938d. p. 282. 299, 307-JJ10.) General: Limestone, white, 

cream, gray; some banding; part well crystallized; average thickness 

75 ft. Index map.

83. (Oregon Dept. Geology and Mineral Industries, 1943, p. 184, 185.) 

Mineralogy. Index and geologic maps.

85. Jackson County. Sec. 21, T. 36 S., R. 3 W., south of Gold Hill. Galls 

Creek deposit. ( Peterson, 1958. p. 34, 3_5.) Limestone, light-gray, to 

white,crystalline; in two narrow lenses. Index map.

86. Jackson County. Sees. 1, 2, T. 37 S., R. 3 W., 5 miles from Gold Hill. 

Baxter quarry. (Hodge, 1944, p. _U>. 88, 89, pi. 13.) Limestone, 

composite sample. Tonnage estimated. Index map.

87, 88. Josephine County. [Devonian.] Sec. 19, T. 37 S., R. 6 W. Range River 

Lime Co. Analyst, H. N. Laurie. (Burchard, 1912, p. 683. pi. 1; 

Winchell, 1914, p. 14, 15, 58, 233, 234. fig. 1.) Limestone. Index 

maps. Possible use: Portland cement.

89. Josephine County. Devonian. Sec. 19, T. 37 S., R. 6 W., about 10.5 

miles southwest of town of Grants Pass. Quarry. Analyst, R. C. Wells. 

Record 2381; lab. No. 7015A. ( Oilier and Kay, 1909, p. 50,jil.pl.2; 

Oilier, 1914. p.lO,ll,15,JL6,17.pl.4.) Limestone, fossiliferous. Index 

and geologic maps. Former use: Flux, lime. Possible use: Cement.

90. Josephine County. [Devonian.] Sec. 19, T. 37 S., near range line 6 and 

7 W., south of town of Wilderville, Marble Mountain. Pacific Portland 

Cement Co. ( Hodge. 1944, p. JU>, 89, pi. 13.) Limestone, crystalline. 

Tonnage estimated. Index map. Possible use: Calcium carbide manufacture, glass production.

91. Josephine County. [Devonian.] Sec. 13, T. 39 S., R. 8 W., 3 miles 

southeast of town of Kerby. Analyst, R. C. Wells. Record 2381; lab. 

No. 7074. ( Oilier and Kay, 1909, p. SI. pi. 2; Oilier, 1914, p. 10, 

11, 15, 16, 17, pi. 4.) Limestone. Index and geologic maps. Former 

use: Flux, lime. Use: Cement.

92. Josephine County. [Late(?) Triassic, Applegate Group.] SWi sec. 15,

T. 38 S., R. 5 W. Oregon Lime Products Co. quarry. USED sample 90. 

( Hodge, 1938d, p. 298; Oregon Dept. Geology and Mineral Industries, 

1942. p. 174.) Limestone. Index and geologic maps. Use: Agricultural, 

chemical lime.

93. Josephine County. [Probably Applegate Group.] Ej sec. 31, T. 38 S., 

R. 5 W., about 4 miles west of Williams, P.O. Jones quarry. Analyst, 

R. C. Wells. Lab. No. 7025. ( Oilier and Kay. 1909, p. jjl, pi. 2; 

Diller, 1914, p. 10. 11. 15. 16, 17, pi. 4; Oregon Dept. Geology and 

Mineral Industries, 1942, p. 158, 159, 160.) Limestone, variegated 

black and white to pure white, crystalline; contains shale. Little overburden. Tonnage estimated. Index and geologic maps. Former use: Flux, 

lime,monumental stone. Possible use: Cement.

94. Josephine County. Applegate Group. NE{ sec. 31, T. 38 S., R. 5 W.,

4 miles west of Williams. Jones marble deposit. ( Ramp, 1962, p. 153- 

158.) Limestone( marble),white, gray streaks, crystalline; mineralogy. 

Average of three samples from quarries. Tonnage estimated. Index and 

geologic maps, geologic section. Former use: Agricultural, monumental 

stone. Possible use: Filler, pulp and paper industry. 

95- 100. Josephine County. Paleozoic or Jurassic. Sec. 30, T. 37 S., R. 6 W.,

Marble Mountain quarry. Pacific Portland Cement Co. ( Hodge, 1938d, 

p. 288; Oregon Dept. Geology and Mineral Industries, 1942, p. 161, 162,

indicate source of analysis]

Oregon Continued

163.) General: Limestone, dark-gray, uniformly fine grained; some 

mottling; some aragonite. Tonnage estimated. Index and geologic maps.

95. Average of numerous shipments. Use: Cement, pulp and paper 

industry.

96. USED sample 190A. Chip sample. Possible use: Cement.

97. USED sample 184A. Chip sample. Little overburden. Possible use: 

Calcium carbide manufacture, cement, glass production.

98. USED sample 188A. Chip sample. Possible use: Cement.

99. USED sample 182A. Chip sample. Little overburden. Possible use: 

Cement.

100. USED sample 186A. Chip sample. Little overburden. Possible use: 

Calcium carbide manufacture, cement, glass production.

101. Josephine County. Sec. 19, T. 37 S., R. 6 W., Cheney Creek. Analysis

VIII, D. (Winchell, 1914, p. 14, 15, j>8, 233, 234, fig. 1.) Limestone. 

Index maps. Possible use: Portland cement.

102. Josephine County. [T. 37 S., R. 6 W.], abont 3 miles from Wilder ville. 

Grants Pass area. Beaver Portland Cement Co. ( Miller, 1938, p. 41, 

42.) Limestone. Use: Pulp and paper industry. Possible use: Flux.

103. Josephine County. Sec. 29, T. 38 S., R. 5 W., about 4 miles west of 

Williams. Turvey deposit. ( Peterson, 1958, p. 34, 37.) Limestone. 

Index map.

104, 105. Wallowa County. Late Triassic. T. 2 S., R. 43 £., about 6 miles from 

town of Lostine, Lostine River Canyon. (Hodge, 1938d, p. 154, 165, 

171, 176, 186-188, 190, 192.) Limestone. Index and geologic maps.

104. SW£ sec. 3, westqnarry. USED sample 36. Deposit: Limestone, 

gray to white, fine to coarsely crystalline. Possible use: Cement.

105. Sec. 10, south of Silver Creek quarry. USED sample 37. Deposit: 

Limestone, medium-gray, crystalline; 20-80 ft thick in bluff. 

Former use: Lime. Possible use: Flux.

106. Wallowa County. Triassic. SWJ sec. 3( or 4) T. 2 S., R. 43 £., about 

6 miles from Lostine. Quarry. Analyst, J. G. Fairchild. Record D-63. 

( Moore, 1937, p. 123, 129, pis. 1, 13; Wagner, 1958, p. 44, 45.) 

Limestone, light-gray, massive, thick-bedded; interbedded with quartzites; contains some pyrite grains. Bulk density 2.72. Index and geologic 

maps. Former use: Quicklime. Possible use: Cement.

107- 111. Wallowa County. Triassic. Sees. 19, 20, T. 2 S.. R. 44 £., 5.5 miles 

southwest of town of Enterprise. Pacific Carbide and Alloys Co. quarry. 

Index maps. Former use: Lime.

107, 108. USED samples 30, 31. ( Hodge, 1938d, p. 154, 165, 171- 

176.) Limestone, black, fine-grained, fossiliferous, 

massive. Tonnage estimated. Geologic map.

109, 110. ( Libbey, 1957, p. 37, 50-J52, 53.) Limestone, sooty-black 

with white splotches, bedded, fossiliferous; strata 1-6 ft 

thick. Tonnage estimated. Use: Agricultural, calcium 

carbide manufacture. Possible use: Ornamental stone. 

109. Analyst, J. G. Fairchild. Record D-63. (Moore,

1937, p. 123, 130, 131, pis. 1. 13.) Bulk density 

2.70. Geologic map. 

111. (Wagner, 1958, p. 44, 45.) Limestone, black, well-bedded.

dense. Use: Calcium carbide manufacture. 

112. Wallowa County. Late Triassic. NE* sec. 15, T. 2 S., R. 48 £., on

Imnaha River. Analyst, J. G. Fairchild. Record 63-D. ( Moore, 1937, 

p. 120, pi. 1.) Limestone, bluish-gray, thick-bedded, fossiliferous. 

Bulk density 2.68. Tonnage estimated. Index map. Possible use: Local 

use only, rock impure.

113, 114. Wallowa County. Late Triassic. SW£ sec. 15, T. 3 S., R. 44 £., about 

0.5 mile north of Deadman Creek. Hurricane Creek deposits. USED 

samples 32, 33. ( Hodge, 1938d, p. 154, 165, 168, 171. 176, 180, 

182.) Limestone. Tonnage estimated. Index and geologic maps.

115. Wallowa County. Late Triassic. [T. 3 S., R. 44 £.], from creek south of 

Falls Creek. USED sample 34. ( Hodge, 1938d, p. 154. 165, 171, 176.) 

Limestone. Index and geologic maps.

116. Wallowa County. Triassic. Sec. 10, T. 4 S., R. 44 £., Hurricane Creek. 

Analyst, J. G. Fairchild; collectors, R. W. Richards, B. N. Moore. 

( Moore, 1937, p. 123, 132, 133, pis. 1, 13; Wells, 1937, p. 58, 59.) 

Marble, white. Bulk density 2.71. Tonnage estimated. Index and 

geologic maps. Possible use: Lime, building and ornamental stone.

117. Wallowa County. [T. 5 S., R. 45 £.], Marble Mountain. ( Hodge, 1944, 

p. _15.) Limestone. Tonnage estimated.

119. Wallowa County. Parts of sees. 8, 17-19, T. 5 S., R. 49 E. and parts of 

sees. 24-26,-T. 5 S.. R. 48 £., about 10 miles north of town of 

Homestead. Big Bar deposit. (Wagner, 1958, p. 43, 44.) Limestone, 

recrystallized, massive; thick beds; chip sample. Index map.

120. Wallowa County. [T. 6 S., R. 26 £.], Wallowa Mountains, on line 

between Wallowa and Baker Counties. Analyst, J. G. Fairchild; collector, C. P. Ross. Record C-332. ( Wells, 1937, p. j>9; Weitz, 1942, 

2, 76, 79.) Dolomite. Index map. Possible use: Refractories, source 

of magnesia.

118.
130 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F,), 

[ Chemical analyses arranged by county and stratigraphic position] 

Chemical analyses

common-rock category

SiO, _______ .

Insoluble ____ .

AljO, .

Fe.0, .

MgO .

CaO ______ .

H.O+ ______ .

p_O,

MnO _______ .

CO, .

S

Ignition loss _ _ .

Total __ .

Class ______ .

CaO/MgO ____ .

1

46F,2-1

. __ 5.98

 | 2.04

___ .78

___ 51.07

___ 39.93

___ 99.80

___ 3.6.89

2

46F,2-4

5.48

3.50

.65 

49.99

40.20

99.82 

0,10,89 

Calcite

3

46F,2-2

6.10

2.16

.68 

50.06

39.60

98.60 

2.6.89 

Calcite

4

46F2 2-14

2.31

*1.00

2.07 

48.95

.017

4 42.81

[97.16]

1,5,92 

Magnesian 

calcite

Washington

5 6

46F22-11 46F,2-12

2.68 2.10

».91 ».81

.31 .68 

49.61 51.11

.025 .025

*42.43 4 42.68

[95.96] [97.40] 

1.6,89 1.4,93 

Calcite Calcite

7

46F,2-13

2.63

'.84

.68 

50.30

.018

*42.81

[97.28] 

1.5.91 

Calcite

8

46F,2-17

5.53

*1.51

.71 

48.83

.030

4 41.12

[97.73] 

3.6,89 

Calcite

9

46F,2-18

4.51

*1.64

.61 

49.42

.014

*41.34

[97.53] 

2,6,89 

Calcite

10 11

46F22-19 46F,2-22

2.73 0.65 

 '(1.71)

.93 .54 

48.10 54.52 

_____ .07

.043 .020 

_____ '.03

_____ 43.22

__ _ .047

*43.10 \42.99)

[96.02] [99.67] 

1,7.88 0,1.98 

Calcite Calcite

12

46F,2-20

0.51

.07 

.25 

2.88 

52.05 

.07 

.005 

».04 

43.87 

.045 

'(43.78)

[99.79]

0,1.99 

Magnesian 

calcite

13

46F,2-24

6.23 

'(.62) 

1.09 

1.46 

.20 

49.95 

.03 

.025 

'.04 

39.44 

.029 

'(39.74)

[98.49] 

3.6,90 

Calcite

Washington Continued

SiO, _____ _

Insoluble ' __ _ .

A120, _

Fe.0, .

MgO _________

CaO _________

P20$ .

MnO _________

CO, .

S ___________

Total ____

Class __ _ __ _

CaO/MgO _____

14

46F22-23

___ 3.35

'(.45)

. __ .22

. __ .86

. __ .08

. __ 52.40

. __ .12

. __ .014

'.01

. __ 41.76

. __ .071

. __ '(41.86)

.___ [98.88]

. __ 2,3.94

. __ Calcite

15

46F22-21

0.55

.05 

.59 

.08 

54.56 

.07 

.027 

'.05 

43.33 

.030 

'(43.32)

[99.34] 

0,1,98

Calcite

16

46F.4-89

0.38

None 

55.26

43.98

99.83 

0.1,99

Calcite

17

46F,4-68

1.13

*.23

1.18 

53.78

.021

*43.14

[99.48] 

1,1.98

Calcite

18 19

46F,4-65 46F.4-67

0.80 4.70

*.24 '.86

1.13 2.74 

53.71 49.36

.010 .037

*43.20 *41.61

[99.09] [99.31] 

0,1,98 3.3.93

_ , Magnesian Calcite °\ , calcite

20

46F24-82

0.43

*.33

.45 

54.09

.020

*44.47

[99.79] 

0.2,97

Calcite

21

46Fj4-7

0.27

C .03 

I .15 

'.50 

S 55.13 

$ .10

3 43.82 

Trace

100.00 

0,1,99

Calcite

22

46F.4-11

2.20

1.48 

.77 

53.25

.185

'43.46

[101.34] 

1.3,97

Calcite

23 24

46F.4-13 46F.4-9

6.14 1.14

1.30 .41 

.83 .69 

51.33 55.18

.265 .247

'41.18 *44.05

[101.04] [101.72] 

5.3,93 1.1.100

Calcite Calcite

25

46Fj4-10

1.42

.88 

.89 

54.70

.279

*43.89

[102.06] 

0.2.99

Calcite

26

46F,4-8

0.60

.21 

1.11 

55.16

.155

*44.49

[101.72] 

0,0.101

Calcite

Washington Continued

SiO, ______ .

Al20j .

Fe.0, .

MgO _______ .

CaO _______ .

Na2O ______ .

K,0_ ______ _.

TiO, _ .

P,05 .

S _________ _.

Ignition loss ___.

Total __ .

Class _______ .

CaO/MgO ____ .

27

46F,4-12

___ 2.37

___ .21

___ .36

___ 54.98

.___ .298

.___ *43.53

___ [101.75]

.___ 2,0,99

28

46F,4-84

0.56 

I '.44

.72 

54.60

.094

*42.95

[99.36]

0,1.97 

Calcite

29

46F.4-22

2.00 

*1.00

1.00 

54.00

.15

[58.15]

0,3,94 

Calcite

30

46F24-73

0.09 

/ 4.96 

{ .16 

1.20 

50.30 

.22 

.05

42.92

[99.90]

0.2,92 

Calcite

31 32

46F.4-71 46F.4-76

1.66 0.52

1.06 .40 

54.49 54.90

V '.99 ______

 *

_____ .084

40.83 *43.16

[100.08] [99.34]

0.3,92 0,1.98 

Calcite Calcite

33

46F.4-25

7.09 

*1.43

.59 

50.73

.055

*39.98

[99.88]

5.4,90 

Calcite

34

46F.4-26

2.92 

*.73

.69 

54.09 

f 7195 

X 7620 

7 100 

.039 

7816 

*42.78

[101.25]

2.2,97 

Calcite

35

46F.4-27

4.62 

2 1.12

.85 

51.62 

7 195 

7620 

7 100 

.025 

7816 

*41.69

[99.92]

3,3.94 

Calcite

36 37

46F24-28 46F24-58

0.68 3.69 -( ':£

.47 .75 

54.81 52.72

.064 ______

*43.75 41.55

[100.13] 100.19

0,1.99 1.4.93 

Calcite Calcite

38

46F24-55

1.54 

.62 

.10 

.50 

53.96

42.92

99.64

0.2.97 

Calcite

39

46F.4-29

2.16

.67 

53.89

.007

*42.65

[99.99]

1.2,96 

Calcite

Not included in total.

2 R,0,.

'Calculated from reported Mn. MgCOj and(or) CaCOj.

*Sample dried at 110e-ll_°C: ignition loss 1,000°-1,100<>C.

'Reported as HjO and undetermined. 

'CO,, calculated from reported CaCO, and MgO. 

'inppm. Determinations for samples 34 and 35. 

'Reported as alkali.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analyses: Li2O.BeO.B1O,,K2O,ScsOt,CcO,ZiiO,GatC)s ,GeO2 ,AssC)s ,YsC)s ,2^C.,NbtOl,MoOI,AgtO lRu.Rh.Pd,CdO l

PbO,Bi,O3.

Na20 ____ .

TiOj ___ .

V,0$ .

ThOz.UO,; sample 5.

4

._ _____ 0.015

. ______ .0005

PbO = 0.0054;

5

0.016

.0098

.0005

sample 20,

6

0.011

.0005

BaO = 0.29]

7

.019

.0007

JgfVjQgUgt I

8

.029

.00086

DI*J$ . *-'yi*-|8 » "Of*-*! "r

NiO ___________

CuO ___________

SrO __________

..

4

________ 0.13

________ .052

*J..ia_V|.~

5

0.13

.032

6

0.13

.0025

.025

7

0.059

.0026

.013

WJf,

8

0.094

.0020

.071
ANALYSES OF SAMPLES 131

Spectrochemical analyses Continued

Na,0__ __ 

TiO, 

V,0, 

r>»o.

MnO ________

NiO ________

CuO ________

SrO ________

9

____ 0.05

____ .035

____ .0013

____ .085

____ .0026

____ .049

10

0.05

.021

.00064

.078

.6019

.056

17

0.004

.0005

.022

.0005

.017

18

0.004

.0005

.01

.00088

.018

19

0.22

.013

.0005

.050

.001

.00066

.017

20

0.17

.0044

.07

.0017

.00082

.059

28

0.006

.0005

.10

.0058

.0098

32

0.0005

.06

.00082

.0081

33

0.18

.031

.042

.001

.0022

.021

34

0.0072

.05

.0019

.029

35

0.09

.0092

.045

.001

.0025

.041

36

0.002

.00099

.02

.0026

.00082

.021

39

0.019

.001

.0015

.11

DESCRIPTIVE NOTES 

[Underscored page numbers In reference indicate source of analysis]

Washington

1 - 3. Asotin County. Probably Late Triassic. Sec. 19, T. 7 N., R. 47 E., south 

of town of Asotin. Lime Hill. Analyst, A. A. Hammer. ( Shedd, 1913, 

p. 114, 118. 244, pi. 21; Mills, 1962, p. 239-241, 243.) Deposit: 

Limestone, dark-gray, fine-grained, slaty. Surface sample, weathered. 

Tonnage estimated. Index and geologic maps. Possible use: Portland 

cement.

4- 10. Asotin County. Probably Late Triassic. T. 7 N., R. 47 E., about 25 miles 

south of town of Clarkston, Lime Hill. Ideal Cement Co. Analyst, under 

supervision of Mark Adams; spectrochemical analyst. C. E. Harvey. 

( Mills, 1962, p. 12, 13, 239-243, 244. 252, 264, pi. 1.) General: Limestone, gray to light-gray, cryptocrystalline to fine-grained; most units 

siliceous and(or) argillaceous; beds 1/16 in.-4 ft thick; total thickness of 

limestone in area 3,143 ft. Chip sample of outcrop. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement.

4. SEiNEi sec. 19. Sample A-3, represents 34 ft.

5. SWi sec. 19. Sample A-4, represents 54 ft.

6. SWi sec. 19. Sample A-5, represents 57 ft.

7. SWi sec. 19. Sample A-7, represents 66 ft.

8. NEiNW* sec. 30. Sample A-8, represents 70 ft.

9. NEiNW* sec. 30. Sample A-9. represents 74ft.

10. NEiNWi sec. 30. Sample A-10, represents 60,ft.

11-15. Asotin County. Probably Late Triassic. T. 7N..R. 47 E., Lime Hill.

Ideal Cement Co. ( Mills. 1962, p. 239-242. 243.) General: Limestone, 

gray to light-gray, cryptocrystalline to fine-grained; contains some calcite; 

most units siliceous and (or) argillaceous; beds 1/16 in.-4 ft thick; total 

thickness of limestone in area 3,143 ft. Tonnage estimated. Index and 

geologic map. Possible use: Portland cement.

16. Chelan County. Pre-Ordovician, limestone in Swakane Gneiss. NEiSWi 

sec. 10, T. 23 N., R. 20 E., about 5 miles north of town of Wenatchee. 

Storme deposit. Analyst, A. A. Hammer. (Shedd, 1913, p. 171. 244; 

Waters. 1932, p. 604.606.609-6U; Danner. 1966, p. 82,415.) Deposit: 

Limestone, white to gray, finely crystalline, massive; at least 12 ft thick. 

Index and geologic maps. Use: Lime. Possible use: Portland cement.

17 -19. Chelan County. Limestone in Swakane Gneiss. Sec. 23, T. 26 N., R. 18 E. 

Dry Creek deposit. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. (Danner, 1966. p. 16, 19, 82, 398-403, 

447, 455.) Mineralogy. Tonnage estimated. Index and geologic maps. 

Former use: Lime. Possible use: None, deposit small.

17. Sample Cn 5-2. Limestone, white to blue-gray, crystalline; chip 

sample taken across 100 ft.

18. Sample Cn 5-5. Limestone, white, crystalline; chip sample, single 

specimen.

19. Sample Cn 5-3. Limestone, float.

20. Chelan County. Holocene. NWj sec. 10, T. 27 N.. R. 15 E., north side of 

Little Wenatchee River. Soda Springs campground deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample Cn 1-1. ( Danner, 1966, p. 16, 19, 82, 387, 397, 444, 445. 447. 

455.) Tufa, dark-gray-brown, hard; interbedded with soft porous layers; 

at least 2 ft thick; composite chip sample. Index and geologic maps. 

Possible use: None, deposit small.

21. Chelan County. [NWj T. 24N., R. 18 E., near] town of Leavenworth. 

Alaska Marble Mountain Co. Analyst, C. R. Corey. ( Burchard, 1912, 

p. 694, pi. 1.) Limestone. Index map. Use: Quarried [use not given].

22-27. Chelan County. NWJ sec. 3 and NE< sec. 4, T. 25 N., R. 20 E. Superior 

Lime and Mining Co., Entiat River limestone deposit. ( Hodge, 1938d, 

p. 13, 80, 81, 83, 85, 86; Danner, 1966, p. 82, 410-412, 414. 415.) 

General: Limestone, white to green, brittle with flinty appearance, thinWashington Continued

bedded. Tonnage estimated. Index and geologic maps, geologic section; 

measured section. Possible use: Terrazzo chips, roof granules, decorative 

stone.

28. Chelan County. NEi sec. 4, T. 25 N., R. 20 E. Entiat deposit. Analyst, 

 under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample Cn 8-2. ( Danner, 1966, p. 16. 19. 82, 398, 410-412, 414, 447, 

455.) General: Limestone, white to greenish-gray, finely crystalline, thinbedded. Sample: Chip sample, white, single specimen. Tonnage estimated. Index and geologic maps, geologic section; measured section. 

Possible use: Terrazzo chips, roofing granules, decorative stone.

29. Chelan County. [T. 25 N., R. 21 E., town of] Entiat. (Hodge, 1944. p. .15, 

54, pi. 5.) Limestone. Tonnage estimated. Index map.

30, 31. Chelan County. South-central part sec. 15 and SEi sec. 9, T. 26 N.,

R. 19 E., 18 miles by road from Entiat. Gold Ridge deposit. ( Danner, 

1966, p. 82, 398, 406-408.) Limestone, white, fine- to medium-grained, 

crystalline; contains a few thin quartz and mica schist layers. Index and 

geologic maps, geologic sections. Possible use: Roofing granules, decorative stone.

30. Sample taken across 50 ft.

31. Composite sample.

32. Chelan County. Wj sec. 22, T. 26 N., R. 19 E., about 16 miles by road 

from Entiat. Indian Creek deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Sample Cn 6-1. 

( Danner. 1966. p. 16, 19, 82, 398, 406, 407, 447, 455.) Limestone, 

white, crystalline; chip sample taken across 2 ft. Index and geologic maps, 

geologic sections; measured sections of outcrops in area. Possible use: 

Rock garden.

33. Chelan County. NEi sec. 10, T. 27 N., R. 15 E. Lncky Line claims. 

Analyst, under supervision of Mark Adams; spectrochemical analyst. 

C. E. Harvey. Sample Cn 2-1. ( Danner. 1966, p. 16, 19, 82, 387. 388, 

392, 393, 397. 447.) Limestone, gray to white, medium to coarsely crystalline. Mineralogy. Chip sample taken across 100 ft. Index and geologic 

maps.

34- 36. Chelan County. SW.J sec. 10. T. 27 N., .1. 15 E. Rainy Creek deposit. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C.E. Harvey. (Danner, 1966, p.16,19.82,387.393-^96,397,447.) Limestone, white to gray, medium to coarsely crystalline. Mineralogy. Tonnage 

estimated. Index and geologic maps. Possible use: Portland cement.

34. Sample Cn 3-1. Chip sample taken across 150 ft.

35. Sample Cn 3-2. Chip sample taken across 150 ft.

36. Sample Cn 3-3. Chip sample taken across 100 ft.

37, 38. Chelan County. NW* sec. 14, T. 27 N., R. 15 E. Rainy Creek deposit. 

Drill hole 56. (Danner, 1966, p. 82, 387, 393-JJ96, 397.) Limestone, 

white to gray, medium to coarsely crystalline. Mineralogy. Tonnage estimated. Index and geologic maps. Possible use: Portland cement. [For 

other analyses from same drill hole, see sample 296, group B; samples 

69. 70, group E; samples 127. 128. group FL]

37. Depth 131.2-138 ft.

38. Depth 32-79 ft.

39. Chelan County. NEi sec. 15, T. 27 N., R. 15 E. Rainy Creek deposit,

Calcium claim. Analyst, under supervision of Mark Adams; spectrochemical 

analyst. C. E. Harvey. Sample Cn 3-4. ( Danner, 1966. p.16.19,82,387, 

393-396,397,447.) Limestone, white to gray, medinm to coarsely crystalline. Mineralogy. Chip sample taken across 10 ft. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement.
132 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Ft), common-rock category Continued

SiO, __ _____ .

RjO, .

MeO

CaO ______ .

P»05 .

Ignition loss __

Total __ .

Class ______ .

CaO/MgO ______

SiOz ____ _ _ .

RjO, .

MgO _______ .

CaO _______ .

P»05 .

Ignition loss _ _.

Total __ .

Class ______ .

CaO/MgO_____.

SiOj _______ .

AltOt _______ .

fetOt _______ . 

MgO _ .

CaO _______ .

PZ05 .

Total __ .

Class ______ .

CaO/MgO ____ .

40

46F,4-64

. __ 1.52

. __ .53

. __ .82

___ 54.45

. __ .125

. __ '42.76

. __ *[100.20]

. __ 1.2,97

. __ Calcite

53

46Ft10-28

. __ 5.63

. __ .25

. __ .22

. __ 52.55

. __ .032

. __ '41.27

___ [99.95]

. __ 5.1,94

___ Calcite

66

46F210-40

. __ 2.34

' j 8 .30

___ .34

. __ 54.19

. __ .016

___ '42.26

.___ T [99.45]

. __ 2,1.96

.___ Calcite

41

46F,4-63

1.43

.24

.70

54.08

.048

'42.92

*[99.42]

1.1,97

Calcite

54

46Ft10-35

2.46

.96

1.78

52.50

.021

'42.25

[99.97]

1,3.95

Calcite

67

46F210-6

20.00

31.41

[51.41]

0.0,98

Dolomite

42

46F.4-62

0.35

.37

.85

55.24

.080

'43.26

*[100.15]

0,1,98

55

46FjlO-29

1.41

.42

.34

55.02

.006

'42.58

*[99.78]

1,1.96

Calcite

68

46F2 10-7

11.15

41.22

[52.37]

0,0.97

Calcareous

dolomite

43

46Fj4-61

1.97

.21

.78

53.43

.074

'43.16

*[99.62]

2.1,97

Calcite

56

46F,10-30

1.15

.42

.26

55.33

.008

'42.41

*[99.58]

0,1,96

Calcite

69

46F210-44

3.75

8 .62

4.15

49.28

.103

'42.17

[100.07]

3,2.94

Magnesian

calcite

Chemical analyses Continued

W ashington C ontinue d

44 45 46

46F,4-l6 46F.4-80 46F.4-81

2.40 2.75 3.40

Trace .53 .59

.65 1.72 .89

53.28 52.28 52.88

.030 .011

43.26 '42.22 '41.91

99.59 [99.53] [99.68]

2.1.96 2.2,95 2,2,95

Calcite Calcite Calcite

Washington Continued

57 58 59

46F,10-31 46Fz 10-32 46F,10-33

0.72 0.57 1.86

.40 .23 .27

.30 .29 .25

55.67 55.53 55.31

.004 .008 .013

'42.76 '42.61 '41.98

*[99.85] *[99.24] [99.68]

0.1,97 0.1.97 1,1,95

Calcite Calcite" Calcite

Washington Continued

70 71 72

46F2 10-41 46F2 10-42 46Fz 10-43

8.09 3.87 2.73

8 1.32 '.50 8 .37

4.04 1.40 2.37

46.70 52.71 51.88

.061 .035 .048

'39.75 '41.59 '42.75

[99.96] [100.10] [100.15]

6.4,88 3.1,94 2,1.96

Magnesian _ . Magnesian

calcite calcite

47

46Ft 10-8

4.65

.99

19.31

31.96

43.54

100.45

3,3,91

Dolomite

60

46F,10-1

1.1

3 Trace

Trace

4 55.2

5 43.4

99.7

1.0.99

Calcite

73

46F,10-49

1.21

*53.9

9 43.7

[98.8]

0.0.99

Calcite

48

46F,10-23

5.22

1.02

2.66

51.10

.027

'40.63

[100.66]

4.3,91

Magnesian

calcite

61

46Ft10-34

1.46

.39

.19

54.77

.012

'42.84

[99.66]

1,1,97

Calcite

74

46F.10-45

4.62

8 .46

7.25

46.52

.046

'41.33

[100.23]

4,1.91

Magnesian

calcite

49

46Ft10-24

1.11

.39

1.39

53.74

.005

J 43.40

[100.04]

0.1.98

Calcite

62

46F»10-36

4.00

.52

.24

53.40

.016

'41.52

T[99.70]

3,2,94

Calcite

75

46F2 10-46

3.67

8 .59

8.41

45.57

.032

'42.25

[100.52]

3.2.93

Magnesian

calcite

50

46Ft10-25

1.19

.47

.14

55.19

.060

'42.98

[100.03]

0,1.97

Calcite

63

46F,10-37

7,08

.75

.29

51.53

.012

'39.98

7 [99.64]

6,2.90

Calcite

76

46Ft10-47

9.22

".38

3.33

47.60

.042

'39.78

[100.35]

9.1,89

Magnesian

calcite

51

46Ft10-26

2.65

.56

1.12

52.95

.007

'42.60

[99.89]

2.2.96

Calcite

64

46F.10-38

0.59

.45

.30

54.92

.019

'43.42

T[99.70]

0.1,98

Calcite

77

46F,10-48

5.35

8 .54

10.59

41.13

.043

'42.12

[99.77]

4.2.92

Calcareous

dolomite

52

46F,10-27

5.88

.48

.26

52.24

.012

'41.12

[99.99]

5.1.93

Calcite

65

46F»10-39

0.50

.29

.28

55.25

.015

'43.42

T[99.76]

0,1.98

Calcite

78

46F»10-4

0.66

\ .62 

*.20

*54.51

5 43.00

*[100]

0,2,98

Calcite

'Sample dried at 1100-112<>C; 

ignition loss 1.000°-!, 100°C.

*A composite of samples 40-43 contained NazO = 175 ppm, 

KtO = 610 ppm, TiOj = 60 ppm, S = 55 ppm.

'iron and aluminum oxides.

Calculated from reported MgCO, and(or) CaCOj.

'CQj, calculated from reported MgCO, and CaCOj.

* A composite of samples 55-58, this group, and sample 135 group Fj, contained 

Na»O = 160 ppm, K»O = 750 ppm, TiOj = < 30 ppm, S = 26 ppm.

7 A composite of samples 62-66 contained NajO = 165 ppm, KZO = 590 ppm, 

TiOj = < 30 ppm. S = 27 ppm. 

"RjO,.

'COj, calculated from reported MgO and CaCOj. 

Organic matter = 1 percent.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LijO.BeO.BjOj.KjO.SCjOj.VjOj.CoO.ZnO.GaiOi.GeOj.AsjOj.YjOj.ZrOj.NbiOj.MoOj.AgjO.Ru.Rh.Pd,

Tl^.Bi^.T

Na,0 __ .

TiO, _ ___ -_.

MnO ______ .

NiO ______ .

CuO ______ .

SrO ______ .

PbO ______ .

Na»0___ .

TiOj _ ___ _.

Cr,0, .

MnO ______ .

NiO ______ .

CuO ______ .

SrO _______ .

PbO ______ .

'hOj.UOj; sample 48,

40

. ___ 0.0048

. ___ .0005

. ___ .10

. ___ .0011

. ___ .02

55

. ___ 0.008

. ___ .0014

. ___ .09

. ___ .0017

. ___ .017

ZrOj=0.

41

0.11

.012

.0005

.029

.00082

.015

56

0.012

.00083

.09

.0019

.02

0028; sample 52.

42

0.006 0

.00058

.037

.0022

.01

57

0.008 0

.0012

.17

.0005

.029

[UZ.amjus 

Ag_O = 0,

43

.00064

.055

.00093

.011

58

.0032

.0016

.086

.00077

.017

I.HUzUj.UUj

.00055]

45

0.064

.0005

.0023

.038

59

0.008

.0015

.043

.00093

.017

I<JJ. IDtUJ.U

46

0.15

.00085

.11

.0013

.039

61

0.0064

.0014

.10

.0015

.014

yjuj.nofu

48

.00077

.048

.0049

'.013

62

0.0084

.0014

.05

.0027

.013

j.«2«-. t im.'

49

.0005

.02

.0021

.019

63

0.0096

.0023

.068

.001

.0082

.012

50

.0005

.027

.0014

.017

64

0.02

.0015

.033

.0024

.011

.045

51

0.01

.0005

.016

.0015

.016

65

0.002

.0018

.064

.0014

.019

52

.0016

.044

.0026

.018

66

0.0044

.0014

.044

.0014

.016

53

0.0076

.00093

.085

.00077

.014

69

0.014

.00058

.023

.001

.0029

.027

.30

54

0.016

.00058

.062

.0013

.013

70

0.02

.0052

.05

.002

.0085

.032
ANALYSES OF SAMPLES 133

Spectrochemical analyses Continued

Na,0 _______

TiOj ______

CitOt ______

MnO _______

71

_____ 0.014

_____ .0014

_____ .016

72

0.026

.0008

.013

74

.014

.0009

.078

75

.023

.0018

.09

76

0.65

.0084

.00096

.062

77

.022

.0006

.078

NiO _____

CuO ___

SrO _____

PbO ___

71

0.0010

.043

.011

72

0.0014

.032

.002

74

0.0017

.032

75

0.0014

.031

76

0.0016

.032

77

0.001

.0019

.027

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

41.

42.

43.

40-43. Chelan County. Mostly in SEi sec. 10, T. 28 N., R. 17 E., unsurveyed. 

Marble Creek deposit, Paradise claims. Analyst, under supervision of 

Mark Adams; Spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 

19, 82, 387, 403-405, 447, 455.) Tonnage estimated. Index and geologic 

maps. Possible use: Terrazzo chips, roofing granules, decorative stone. 

40. Sample Cn 4-1. Limestone, crystalline, thin-bedded; bed averages

8 ft thick. Chip sample taken across 280 ft. 

Sample Cn 4-2. Limestone, white, finely crystalline; bed less than

50 ft thick. Chip sample taken across 450 ft. 

Sample Cn 4-3. Limestone, crystalline; bed 40-50 ft thick. Chip

sample taken across 40 ft.

Sample Cn 4-4. Limestone, crystalline; bed 40-50 ft thick. Chip 

sample taken across 50 ft.

44. Chelan County. Sec. 13, T. 29N., R. 20 E., town of Lakeside, north side 

of Lake Chelan. Analyst, A. A. Hammer. (Shedd, 1913, p. 173.174,244, 

pi. 21; Danner, 1966, p.82,416-418.) Deposit: Limestone, white to 

light-bluish-gray, crystalline, stratified, uniform throughout; 30 ft exposed. 

Index and geologic maps. Use: Lime. Possible use: Portland cement.

45, 46. Chelan County. NEi, SW£. and SEi sec. 29, T. 29 N.. R. 21 E., about

19.5 miles by road west of town of Chelan. Lake Chelan deposit. Analyst, 

under supervision of Mark Adams; Spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19. 82, 416, 417. 447. 455.) Limestone, white, 

crystalline; interbedded with schist. Tonnage estimated. Index and geologic maps, measured section. Former use: Lime. Possible use: None, 

deposit small.

45. Sample Cn 7-1. Chip sample taken across 31 ft.

46. Sample Cn 7-2. Composite chip sample.

47. Ferry County. ( Probably Precambrian, Boulder Creek Formation.) [T. 39 N., 

R. 36 E.], in hills west of town of Orient, Kettle River Range. Analyst, 

A. A. Hammer. (Shedd, 1913, p. 160,^62, 244. pi. 21; Mills, 1962, p. 

178.) Dolomite, white, coarse texture. Deposit: Gray or white, fine- to 

coarse-grained; mineralogy. Index map. Possible use: Probably none.

48-51. Ferry County. Pre-Permian, late Paleozoic. SE^NEi sec. 4, T. 35 N., 

R. 32 E., Swan Lake area. Analyst, under supervision of Mark Adams; 

Spectrochemical analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 207- 

209, 244, 253, 264, pi. 1.) Chip sample from outcrop. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement, dimension stone. 

48, 49. Limestone, white} few thin light-gray layers; coarse grained.

Samples F-22 and F-23.

50, 51. Limestone, white; some gray and pale-yellow layers; coarse 

grained. Samples F-20 and F-21.

52, 53. Ferry County. Permian. NE{NEi sec. 4, T. 36 N., R. 32 E., 3 miles west 

of town of Republic. Doblasue property. Analyst, under supervision of 

Mark Adams; Spectrochemical analyst, C. E. Harvey. Samples F-l, F-2. 

(Mills, 1962, p. 12,13,199,^00,244,252,264.pi. 1.) Limestone, gray, very 

fine grained, massive. Chip sample from outcrop. Tonnage estimated. 

Index and geologic maps. Possible use: None, rock impure, small tonnage.

54. Ferry County. Permian. NWiNWi sec. 5, T. 36 N., R. 34 E., 9 miles

southeast of Republic. Iron Mountain district. Analyst, under supervision of 

Mark Adams; Spectrochemical analyst, C. E. Harvey. Sample F-38. 

( Mills, 1962, p. 12, 13, 204. 244. 253, 264, pi. 1.) Limestone, creamwhite to light-gray, fine-grained, slightly argillaceous, bedded; deposit 

35 ft thick. Chip sample from outcrop. Tonnage estimated. Index and 

geologic map. Possible use: Portland cement.

Ferry County. Permian. SEi sec. 9, T. 36 N., R. 32 E., about 4 miles 

southwest of Republic. Union Lime Co., quarry abandoned. Analyst, under 

supervision of Mark Adams; Spectrochemical analyst, C. E. Harvey. ( Mills, 

1962, p. 12,13,199-^01,202,203,244,253,264,pl.l.) Limestone, gray, 

very fine grained; some calcite, deposit ranges from 50 to 70 ft in thickness; 

overburden. Chip sample from outcrop. Tonnage estimated. Index and 

geologic maps. Possible use: None, small tonnage, contains silica.

55. Sample F-31 represents 3 ft.

56. Sample F-32 represents 28 ft.

57. Sample F-33 represents 20 ft.

58. Sample F-35 represents 42 ft.

59. Sample F-36 represents 40 ft.

55-59.

Washington Continued

60. Ferry County. Permian. SEi sec. 9, T. 36 N.., R. 32 E., few miles west of 

Republic. Union Lime quarry. ( Landes, 1905 [1906], p. 381; Mills, 1962, 

p. 190, 200, 202, 203.) Limestone, bluish, compact; some calcite; 50- 

70 ft thick. Tonnage estimated. Index and geologic maps. Former use: 

Lime. Possible use: None, small tonnage; contains silica.

61. Ferry County. Permian. NW*NWi sec. 15, T. 36 N., R. 32 E., east side of 

Copper Lakes. Analyst, under supervision of Mark Adams; Spectrochemical 

analyst, C. E. Harvey. Sample F-19. (Mills, 1962, p. 12, 13, 89, 199- 

201, 203, 244, 253, 264, pi. 1.) Limestone, gray, very fine grained, 

siliceous; 80 ft thick in area. Chip sample from outcrop. Tonnage estimated. Index and geologic maps. Possible use: Chemical, metallurgical, 

calcium carbide manufacture; sugar industry, pulp and paper industry.

62-66. Ferry County. Permian. SE*NWi sec. 5, T. 37 N., R. 34 E., Lambert 

Creek area. Analyst, under supervision of Mark Adams; Spectrochemical 

analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 192-J195, 244. 252, 264. 

pi. 1.) Limestone, light-gray to light-brownish-gray, very fine grained; 

contains some chert. Chip sample from outcrop. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement, filler.

62. Sample F-10.

63. Sample F-ll.

64. Sample F-12.

65. Sample F-13.

66. Sample F-14.

67, 68. Ferry County. Permian. Probably sec. 18, T. 37 N., R. 34 E., near top of 

Cooke Mountain, Belcher district. Analyst, I. G. Fairchild. (Bancroft, 

1914, p. 1, 13. 15, 39, 42, 168, 169; Mills, 1962, p. 192-J194.) Tonnage estimated. Index and geologic maps. Possible use: Portland cement, 

filler.

67. Dolomite.

68. Limestone, dolomitic.

69. Ferry County. Permian. SWiSWi sec. 31, T. 40 N., R. 34 E. Vandiver 

property. Analyst, under supervision of Mark Adams; Spectrochemical 

analyst, C. E. Harvey. Sample F-15. ( Mills, 1962, p. 13, 13, 187. 184), 

244, 252, 264, pi. 1.) Limestone, light-gray, fine-grained, massive; 

50 ft sampled. Chip sample from outcrop. Index and geologic maps. 

Possible use: None, rock impure.

70-72. Ferry County. Permian or Triassic. NE« NWi sec. 31, T. 40 N., R. 34 E., 

Little Goosmus Creek area. Analyst, under supervision of Mark Adams; 

Spectrochemical analyst, C. E. Harvey. (Mills, 1962, p. 12, 13, 187-189. 

244, 252, 264, pi. 1.) General: Limestone, gray, fine-grained; contains 

blebs of white silica and black chert. Chip sample from outcrop. Index 

and geologic maps. Possible use: None, rock impure.

70. Sample F-16.

71. Sample F-17.

72. Sample F-18.

73. Ferry County. Permian and Triassic. NW.'.SWi sec. 6, T. 39 N., R. 34 E., 

2 miles northeast of town of Curlew. Owner: W. B. llclphrey. (Mills. 

1962, p. 187, 190, pi. 1.) Limestone, white, fine- to coarse-grained; 

massive. Tonnage estimated. Index and geologic maps. Use: Probably 

none, deposit small.

74- 77. Ferry County. Triassic. SWiNWi sec. 17, T. 40 N., R. 34 E., about 2.5 

miles southwest of town of Danville. Analyst, under supervision of 

Mark Adams; Spectrochemical analyst, C. E. Harvey. ( Mills, 1962, f,. 12, 

13, 186-288, 244, 252, 264, pi. 1.) Limestone, white to light-gray, 

medium-grained. Chip sample from outcrop. Index and geologic maps. 

Possible use: None, rock impure.

74. Sample F-3. 76. Sample F-8.

75. Sample F-7. 78. Sample F-9.

78. Ferry County. [NW^NWj T. 36 N., R. 33 E., near] Republic. Republic 

Gold Mines and Lime Works. Analyst, S. G. Dewsnap. (Burchard, 

1912, p. 694, pi. 1.) Limestone. Index map. Use: Quarried [use 

not given].
134 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Ff), common-rock category Continued

Chemical analyses Continued

SiOj _________

AljO, ________

FejO, ________

MgO _________

CaO _________

MnO _________

P ___________

SO, _________

Total ___

Class _________

CaO/MgO ______

SiOj __ _____ _

AljO, ________

Fe20, ________

FeO _________

MgO _________

CaO _________

HjO _________

P ___________

Total ____

Class _________

CaO/MgO ______

SiO, _________

R.TX "

MgO" ________

CaO _________

Ignition loss B _ _

Total ___

Class _________

CaO/MgO ______

SiOj ______

RjO," .

MgO" ________

CaO _________

Total ____

Class _________

CaO/MgO ______

79

46F2 10-10

__ 1.10

 | *i.oo

__ 1.50

__ 55.00

___ [58.60]

__ 0,2.93

92

46F,17-4

__ 2.64

 | 1.52

 i

__ 1.30

__ 53.38

__ 99.76

__ 0.4,92

___ Calcite

105

46Fj22-8

__ 0.48

__ .88

__ 20.19

__ 31.60

__ 46.85

__ Dolomite

118

46F222-21

__ 0.30

__ .50

__ 20.40

__ 31.65

__ 47.15

__ 100.00

__ 0.1,99

80

46F2 10-5

0.6

*55.0

'1.2

*43.2

100.0

1.1,98

Calcite

93

46Fjl7-3

0.40

.16

1.98

53.30

43.86

99.70

0,0,99

Calcite

106

46F,22-9

0.96

.99

19.79

31.74

46.52

100.00

0,2,98

Dolomite

119

46F222-22

0.20

.44

20.61

31.50

47.25

100.00

0,0,99

81

46F2 15-1

1.50

2 54.17

§ 1.40

'42.53

100.00

2,0.97

94

46F2 17-55

1.20

'l.SO

1.50

54.32

[58.52]

0,2.93

Calcite

107

46Fj22-10

0.30

.48

20.49

31.59

47.14

100 .OC

0,1,99

Dolomite

120

46F222-23

0.22

.43

20.68

31.40

47.27

100.00

0.0.99

82

46Fjl6-8

3.74

.25

49.73

43.91

[99.07]

1.8,89

95

46F2 17-48

1.15

*52.94

*41.56

Calcite

108

46F222-11

.65

20.41

46.98

Dolomite

121

46F222-24

0.41

.32

20.59

0,1.99

Washington Continued

83 84 85

46F2 17-59 46Fz 17-57 46F2 17-60

55.50 52.97 54.45

44.00 42.00 43.15

[99.50] [99.75] [98.94]

0,0.99 1,2,94 0,1.97

Magnesian _ , .

calcite

Washington C ontinued

96 97 98

46F2 17-47 46Fjl9-4 46F2 19-6

* 7o

*55.09 *54.62 *53.44

Ti&ce

*43.25 *42.88 *41.96

100.00 100.17 [97.67]

1,1,98 1.1.98 2.0,95

Calcite Calcite Calcite

Washington Continued

109 110 111

46F,22-12 46F,22-13 46F,22-14

0.68 0.50 0.34

.62 .56 .52

20.65 20.50 20.33

31.11 31.45 31.69

46.94 46.99 47.12

100.00 100.00 100.00

0,1,98 0,1,99 0,1,99

Dolomite Dolomite Dolomite

Washington C ontinued

122 123 124

46F,22-25 46F222-26 46F222-27

0.55 0.88 0.44

.44 .51 .78

20.47 20.11 20.20

31.45 31.65 31.61

47.09 46.85 46.97

100. OC 100.00 100.00

0,1,99 0,1,98 0,1,99

86

46Fjl7-61

0.96

[ .35

.22

54.64

43.41

[99.71]

0.2.98

Calcite

99

46F222-2

*0.39

».40

"21.66

30.80

"46.75

100.00

0.1.98

Dolomite

112

46F222-15

0.30

.77

20.31

31.61

47.01

100.00

0,1.99

Dolomite

125

46F222-28

0.62

.86

20.07

31.65

46.80

100.00

0,1,98

87

46Fjl7-62

1.00

.21

.32

54.80

43.42

[99.82]

1.1.98

Calcite

100

46F222-3

*0.64

".66

"21.42

30.95

11 46. 33

100.00

0,1.97

Dolomite

113

46F222-16

0.46

.92

20.42

31.30

46.90

100.00

0,1,99

Dolomite

126

46F222-29

0.06

.52

20.56

31.60

47.26

100.00

0,0.99

88

46F2 17-58

1.18

| '.36

3.64

52.14

42.40

[99.72]

1.1,95

Magnesian

calcite

101

46F222-4

*0.54

».44

"21.50

30.81

n 46. 71

100.00

0.1,98

Dolomite

114

46F222-17

0.60

.64

20.19

31.62

46.95

100.00

0,1.99

Dolomite

127

46Fj22-30

0.40

.83

20.28

31.55

46.94

100.00

0.1,99

Dolomite

89

46Fjl7-l

0.02

[ .05

1 .37

1.73

54.32

*( -02)

43.07

99.56

0.0.97

Calcite

102

46F222-5

0.34

 rfro

"20.59

31.40

B 47.19

100.00

0,1.99

Dolomite

115

46F222-18

0.38

.82

20.18

31.72

46.90

100.00

0,1.99

Dolomite

128

46F222-31

0.30

.74

20.43

31.50

47.03

100.00

0.1.99

Dolomite

90

46F2 17-2

0.18

.24

1.63

55.00

42.15

99.40

0.0,95

Calcite

103

46Fj22-6

0.30

 .54

"20.43

31.60

B 47.13

100.00

0.1,99

Dolomite

116

46F222-19

0.58

.78

20.27

31.50

46.87

100.00

0,1,98

Dolomite

129

46F222-32

1.18

1.22

19.46

31.84

46.30

100.00

0,2.98

Dolomite

91

46F2 17-5

3.00

1.60

52.00

42.40

99.50

2,1,96

Calcite

104

46F222-7

0.36

».47

"20.35

31.65

B 47.17

100.00

0,1.99

Dolomite

117

46F222-20

0.56

.86

20.23

31.50

46.85

100.00

0,1.98

Dolomite

130

46F222-33

1.46

1.06

19.64

31.56

46.28

100.00

0.3,97

Dolomite

See following page for footnotes.
ANALYSES OF SAMPLES 135

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

79. Ferry County. [T. 36 N., R. 33 E.], town of Republic. ( Hodge, 1944, 

p. _1§. pl. 5.) Limestone. Index map.

80. Ferry County. [T. 37 N.. R. 32 E.], between towns of Republic and

Wauconda. Analyst, S. C. Dewsnap. ( Landes, 1902, p. 28, J29.) Limestone, bluish, compact; checked with light-blue granular marble. Use: 

Lime.

81. Island County. Pacific Lime Co. (Bethune. 1891, p. 100-_102.) Limestone. 

Possible use: Lime.

82. Jefferson County. Holocene. Sec. 24. T. 27 N., R. 5 W., about 3 miles 

up West Creek from its junction with Dosewallips River. ( Danner, 1966. 

p. 82, 444.) Tufa, white, chalky; maximum thickness about 5 in.; composite sample. Index and geologic maps. Possible use: None, deposit 

small.

83. King County. Permian. Sec. 12, T. 26 N., R. 10 E., about 2 miles northwest of town of Grotto. Baring deposits. (Danner, 1966, p. 82, 360, 372- 

374, 375.) Limestone, crystalline; composite sample. Tonnage estimated. 

Index and geologic maps, geologic sections. Possible use: None, deposit 

small.

84-87. King County. Permian. NWj se:. 13, T. 26 N., R. 10 E., Palmer Mountain. ( Danner, 1966. p. 82, 360, 363, 369, 370, 371. 372.) Limestone, 

black to dark-bluish-gray to white, finely crystalline. Tonnage estimated. 

Index and geologic maps, geologic section.

84. Roche Harbor deposit, Calcite Placer claims. Sample taken

across 100 ft. Former use: Cement. Possible use: Decorative 

stone.

85. Carbonate Placer claim. Sample taken across 35 ft. Use: None, 

deposit small.

86,87. Carbonate Placer claim. Use: None, deposit small.

88. King County. Permian. NWi sec. 13, T. 26 N., R. 10 E., Palmer Moun- 

* tain. Marble Cliff claim. ( Danner, 1966, p. 82, 360, 363, 370, 371.) 

Limestone; sample taken across 50 ft. Index and geologic maps. Possible 

use: None, deposit small.

89-91. King County. Permian. Sees. 1U. 24, 25, T. 26 N., R. 10 E., about 2 

miles southwest of Grotto. Northwestern Portland Cement Co. (Hodge, 

1938d. p. 13, 69, 73, 74. 76; Danner, 1966. p. 82, 359, 360. 362, 363. 

367, 368.) General: Limestone, ranges from pure white to dark-gray-blue; 

fine grained for most part but rccrystallized in places; mineralogy. Tonnage 

estimated. Index and geologic maps. Former use: Cement, deposit now 

depleted.

89. USED sample 205B.

92, 93. King County. Permian. Sees. 1.), 24, 25, T. 26 N., R. 10 E., 2 nitres from 

town of Baring. Grotto deposit;. Analyst, A. A. Hammer. (Shedd, 1913, 

p. 235. 244. pl. 21; Danner, 1966, p. 82, 359, 360, 362, 363, 367, 

368.) Limestone, finely crystalline; stratified in some places; 100 ft 

exposed. Mineralogy. Tonnage estimated. Index and geologic maps. 

Former use: Cement, deposit now depleted.

92. Limestone, dark-gray.

93. Limestone, white.

94. King County. Permian, (Danner, 1966). [T. 26 N., R. 11 E.], near

Grotto. (Hodge, 1944, p. _15, pl. 6.) Limestone. Tonnage estimated. 

Index map.

Footnotes of analyses on preceding pagj:

Washington Continued

95. King County. [T. 23 N., R. 4 E., town of Tukwila], Tuckawila. Pacific 

Coast Portland Cement Co. Analyst, R. A. Heath. (Burchard, 1912, 

p. 695, pl. 1.) Limestone. Index map. Use: Quarried [use not given].

96. King County. [Possibly T. 24 N., R. 8 E., near town of Snoqualmie.]

Snoqualmie Co. Analyst, G. A. Bethune. (Bethune, 1891, p. 100-102; 

Sethune, 1892, p. j>3.) Limestone. Use: Lime.

97. Kittitas County. [SEi T. 19 N., R. 15 E.], Cle-Elum. Analyst,

G. A. Bethune. (Bethune, 1891, p. 100-102; Bethune, 1892, p. 53.) 

Limestone. Use: Lime.

98. Kittitas County. [T. 22 N., R. 15 E.], about 20 miles northwest of town 

ofRoslyn. (Hodge, 1935c, p. _75.) Limestone. Possible use: Flux.

99- 130. Lincoln County. Cambrian, Old Dominion Limestone. T. 28 N., R. 36 E., 

Old Fort Spokane area. ( Bennett, 1944, p. 7, 26-28, pl. 8 or 9; 

Bennett. 1945, p. 14.) Deposit description: Dolomitic marble, white, 

medium- to coarse-grained. Stratigraphic thickness possibly 5,000-6,000 

ft. Overburden. Fresh sample from outcrop, fragments taken every 5 ft, 

usually for a length of 50 ft. Tounage estimated. Index and geologic 

maps. Possible use: General uses of dolomite; source of magnesia, 

refractories, crushed stone.

99-102. NW^SW* sec. 15. Pacific Coast Marble Co.

99. Sample 467.

100. Sample 468.

101. Sample 469.

102. Sample 470.

103-105. SWisWj sec. 15. Pacific Coast Marble Co.

103. Sample 498.

104. Sample 499.

105. Sample 500.

106-113. NEjSEi sec. 16. Pacific Coast Marble Co.

Sample

106. 480

107. 481

106. 482

109. 483

110.

111.

112.

113.

484

485

486

487

114,115. SWiSEi sec. 16. Pacific Coast Marble Co.

114. Sample 471.

115. Sample 472.

116-128. SEiSE* sec. 16. Pacific Coast Marble Co.

116.

117.

118.

119.

120.

121.

122.

473

474

475

476

488

489

490.

123.

124.

125.

126.

127.

128.

491

492

493

494

495

496

129. 130. NWiNEl sec. 21. Owner: C. A. Olsen.

129. Sample 454.

130. Sample 455.

1 Calculated from reported CaCOj or Ft;. 

'Organic matter and water.

Moisture, not included in total. 

* Reported as manganese. 

'Reported as SOj.

7Reported as sulfur.

*COj, calculated from reported MgCOj and (o '> CaCOj. 

9 Also reported as insoluble. 

10 Iron and alumina. 

11 By difference. 

U 950> -1,0000C; also called CO,.
136 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F^),common-rock category-Continued

Chemical analyses Continued

SiO, _______

R.O, 1 

MgO* 

CaO __________

Total ___

Class _______

CaO/MgO ______

SiO, _ _.

R.O, .

MgO _________

CaO __________

P,05 _

Ignition loss ___.

Total ___.

Class _________

CaO/MgO ______

SiO, _________

A1.0, _

Fe,0, _

MgO _________

CaO _________

H.O- _

P,05 _

Ignition loss ___

Total ___

Class _________

CaO/MgO ______

SiO, _ _ ___

R.O, .

MgO _________

CaO _________

P.O, .

Ignition loss ___

Total ___

Class _________

CaO/MgO _____

131

46F,22-34

. __ 1.06

. __ .98

. __ 19.98

. __ 31.44

. __ 46.54

. __ 100.00

. __ 0.2.98

144

46F.22-47

. __ '1.28

'.56

. __ J 21.09

. __ 30.87

. __ 4 46.20

. __ 100.00

. __ 0.2.97

157

46F, 

40-193

2.34

' } T .92

. __ .54

. __ 53.51

. __ .075

. __ 5 42.45

.___ [99.84]

. __ 1.3,96

. __ Calcite

170

46F, 

40-260

. __ 6.2

> e

:::: ^'1

. __ "40.9

. __ [99.0]

. __ 6.0.93

. __ Calcite

132

46F-22-35

0.64 

1.02 

19.96 

31.72 

46.66

100.00

0.1,98 

Dolomite

145

46F.22-48

1 1.84 

'.84 

'20.75 

30.92

4 45.65

100.00 

0.2,95

Dolomite

158

46F, 

40-194

2.94 

T .73

.72 

53.33

.058 

5 42.28

[100.06] 

2.2.95

Calcite

171

46F, 

40-246

*55.2

*43.4

[98.6] 

0.0,99 

Calcite

133

46F-22-36

1 0.31

.46 

21.21 

31.33 

46.69

100.00

0.1.98 

Dolomite

146

46F-22-49

*0.68 

'.47 

'21.19 

31.03

4 46.63

100.00 

0.1.98

Dolomite

159

46F, 

40-195

1.57 

T .42

.24 

54.62

.006 

5 42.98

"[99.84] 

1.1,97

Calcite

172

46F, 

40-247

55.3

"43.4

[98.7] 

0,0.99 

Calcite

134

46F.22-37

1 0.80

.80 

21.05 

31.05 

46.30

100.00

0.1.97 

Dolomite

147

46F,22-50

0.82 

*.70 

'20.35 

31.32

4 46.81

100.00 

0.1,98

Dolomite

160

46F, 

40-196

1.43 

T .34

.14 

55.52

.017 

5 42.26

"[99.71] 

1.1,96

Calcite

173

46F, 

40-244

"«54T

"43.0

[97.9] 

0.0.98 

Calcite

W ashington C ontinued

135 136 137

46F.22-38 46F.22-39 46F.22-40

1 0.72 0,14 0.18

.52 .40 .47 

21.55 20.41 20.52 

30.67 31.78 31.60 

46.54 47.27 47.23

100.00 100.00 100.00

0,1.97 0.0.99 0.0.99 

Dolomite Dolomite Dolomite

Washington Continued

148 149 150

46F.22-51 46F.22-52 46F.22-53

0.53 0.35 0.20 

*.44 *.47 *.64 

'20.54 '20.72 '20.50 

31.40 31.26 31.50

4 47. 09 4 47.20 4 47.16

100.00 100.00 100.00 

0,1,99 0.1,99 0.0,99

Dolomite Dolomite Dolomite

Washington Continued

161 162 163

46F, . 46F, 46F, 

40-197 40-198 40-199

0.50 1.36 3.73 

T .14 T .29 7 .87

.16 .31 .78 

55.51 54.93 52.75

.028 .005 .010 

*43.54 *43.17 5 41.98

[99.88] [100.06] [100.12] 

0.0,99 1.1.98 2.3.95

Calcite Calcite Calcite

Washington Continued

174 175 176

46F, 46F, 46F, 

40-245 40-204 40-207

_____ 1.34 4.90

_____ .31 .31

__. ___ .28 .40

54.7 54.92 52.83 

_____ .008 .014

"43.0 5 43.15 5 41.45

[97.7] [100.01] [99.90] 

0.0.98 1,1,98 4,1.94 

Calcite Calcite Calcite

138

46F-22-41

0.28

.42 

20.44 

31.65 

47.21

100.00

0.0.99 

Dolomite

151

46F.24-24

2.24 

4.00 

2.28 

49.05

41.32

98.89 

0,4.92

Magnesian 

calcite

164

46F, 

40-200

1.28 

T .13

.24 

54.95

.029 

*43.25

"[99.88] 

1,0,98

Calcite

177

46F,

40-205

0.42 

.16 

.26 

55.59 

.005 

*43.43

[99.86] 

0,0.99 

Calcite

139

46F.22-42

0.32

.76 

20.19 

31.70 

47.03

100.00

0.1.99 

Dolomite

152

140

46F.22-43

0.44

.38 

20.34 

31.70 

47.14

100.00

0.1,99 

Dolomite

153

141

46F-22-44

0.72

.66 

20.39 

31.35 

46.88

100.00

0,1,98 

Dolomite

154

142

46F,22-45

0.82

.86 

20.03 

31.56 

46.73

100.00

0,1,98 

Dolomite

155

143

46F.22-46

1.30

.80 

19.80 

31.60 

46.50

100.00

0,2,98 

Dolomite

156

46F.40-188 46F,40-189 46F.40-190 46F.40-191 46F.40-192

1.29 

.49 

10.90 

43.73 

.014 

5 44.57

[100.99] 

0.1.97

Calcareous 

dolomite

165

46F, 

40-201

0.29 

T .34

.23 

55.67

.019 

*43.42

"[99.97] 

0.1.99

Calcite

178

46F, 

40-206

1.40 

.28 

.70 

54.43 

.011 

*43.13

[99.95] 

1,1,98 

Calcite

1.20 

.34 

3.22 

51.96 

.017 

5 43.45

[100.19] 

1,1.97

Magnesian 

calcite

166

46F, 

40-202

0.44 

T .37

.28 

55.41

.019 

*43.32

"[99.84] 

0.1.98

Calcite

179

46F, 

40-166

1.80 

.60 

Trace 

54.62

41.88

98.90 

1,2,95 

Calcite

0.34 

.38 

3.23 

52.24 

.021 

5 43.91

[100.12] 

0.1,98

Magnesian 

calcite

167

46F, 

40-203

0.50 

T .25

.25 

55.46

.018 

*43.49

[99.97] 

0.1,99

Calcite

180

46F, 

24-6

3.56 

2.04 

Trace 

52.56

40.88

99.04 

0,6,92 

Calcite

3.98 

.79 

.74 

52.69 

.055 

S 41.80

[100.06] 

3,2,94

Calcite

168

46F, 

40-187

2.64 

T .50

5.56 

48.70

.041 

5 42.15

[99.59] 

2,1,93

Magnesian 

calcite

181

46F, 

40-208

1.51 

.33 

.63 

54.37 

.006 

5 43.07

[99.92] 

1,1,98 

Calcite

3.45 

.86 

.60 

53.14 

.075 

5 41.94

[100.06] 

2,3,95

Calcite

169

46F, 

40-253

'1.60

( - 14 

V '.42

».91 

'53.38 

.35 

.08 

"42.89

[99.77] 

(1,2)97

Calcite

182

46F,

40-209

0.96 

.20 

.53 

54.80 

.004 

*43.34

[99.83] 

1.1.98 

Calcite

'Also reported as insoluble, 

'iron and alumina. 

'By difference. 

4 950e-1.000«C; also called CO,.

'Sample dried at 110e-112°C; ignition loss at 1,000°-1.100«C.

'insoluble.

T R_0,.

1 Reported as iron oxide.

'Calculated from reported MgCO, and(or) CaCO,. 

10 CO,, calculated from reported MgCOj and CaCO(. 

U A composite of samples 159,160,164-166 contained 

Na_O = 170 ppm, K,O = 720 ppm, TiO, = < 30 ppm; S =16 ppm.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: Li,O,BeO.BsO,,KtO,ScIO,,NiO,CcO >ZnO,GaIOa .GeO,.AsiOs ,Y*O|,ZrO|.Nb,Og ,MoOi,AgIO,Ru,Rh,Pd,CdO>

IiV3,.SnC^,SbiO,,TeC^.Cs,O.BaO.U,0,,CeO,.Pr20,.N^ 

Bi_O,.ThO,.UO,; for sample 160, PbO = 0.009 percent]

Na,0 ___ ____ .

TiO, .

V205 .

Cr.0, .

MnO ________________

CuO ________________

SrO ______________ .

152

. ___________ .00035

. ___________ .0094

. ___________ .0027

. ___________ .15

153

0.0044

.00048 

.01 

.0020 

.12

154

0.0064 

.003

.00042 

.0079 

.0012 

.14

155

0.15 

.02?

.00064 

.036 

.0014 

.14

156

0.09 

.029

.0005 

.028 

.0012 

.13

157

0.09 

'.018

.0005 

.034 

.0012 

.15

158

0.05 

.019

.0005 

.039 

.0011 

.14

159

0.016 

.003 

.0017 

.036 

.0016 

.0096

160

0.0088 

.003 

.00086 

.061 

.0014 

.0088

161

0.0034

.00086 

.04 

.00088 

.014

162

0.0076

.0023 

.027 

.00077 

.017
ANALYSES OF SAMPLES 137

Speccochemical analyses Continued

Na,0 _.

TiO, __.

V20, .

0*0, .

MnO _________

CuO __________

SrO __________

163

. ______ 0.018

. ______ .003

. ______ .0012

. ______ .12

. _______ .0021

. ____ . __ .014

164

0.0036

.00051

.032

.0015

.11

165

0.0088

.003

.0014

.047

.012

166

0.012

.00096

.043

.013

167

0.0096

.0016

.12

.016

168

0.03

.001

.027

175

0.014

.0022

.048

.02

176

0.0048

.0014

.035

.011

177

0.0036

.031

.013

178

.056

.012

181

0.14

.12

.0073

.0019

.079

.0016

.017

182

0.006

.0018

.024

.02

DESCRIPTIVE NOTES 

[ Underscored page number* in reference indicate source of analysis]

Washington Continued

131 -150. Lincoln County. Cambrian, Old Dominion Limestone. T. 28 N., R. 36 £., 

Old Fort Spokane area. ( Bcnnett, 1944, p. 7, 26-28, pi. 8.) Deposit 

description: Dolomitic marble, white, medium- to coarse-grained; 

stratigraphic thickness possibly 5,000-6,000 ft; overburden. Fresh sample 

from outcrop, fragments taken every 5 ft, usually for a length of 50 ft. 

Tonnage estimated. Index and geologic maps. Possible use: General 

uses of dolomite; source of magnesia, refractories, crushed stone. 

131-135. NWiNEi sec. 21. Owner, C. A. Olsen. ( Bennett, 1945. 

p. .14.)

131. Sample 456. 134. Sample 459.

132. Sample 457. 135. Sample 460.

133. Sample 458.

136- 141. NEiSWi sec. 21. Owner, C. A. Olsen. (Bennett, 1945, 

p. .13.)

Sample

136. 461 ~

137. 462

138. 463

142-150. NWiSWi sec. SI. 

p. .13.)

Sample

139. 464

140. 465

141. 466 

Owner, W. F. Pierce. ( Bennett, 1945.

147.

148.

149.

150.

Sample

450

451

452

453

151. Okanogan County. Paleozoic, T. 35 N., R. 26 E., 1.5 miles west of

town of Riverside. Analyst, A. A. Hammer. (Shedd, 1913, p. 166, 167, 

245, pi. 21; Landes, 1934, p. 1077,'1078, 1080.) Limestone, brownishblue; thin overburden. Index maps. Possible use: Portland cement 

[implied],

152 - 154. Okanogan County. Late( ?) Permian, middle part of Anarchist [Group]. 

NEi sec. 25, T. 38 N., R. 26 E., about 5 miles northwest of town of 

Tonasket, Cayuse Mountain area. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962, 

p. 12, 13, 224-226, 227, J45, 255, 264, pi. 1.) Limestone, white to 

light-gray; alternating with beds of dolomite. Chip samples from outcrop, 

together represent 150 ft. Index and geologic maps. Possible use: 

Probably none, rock impure.

152. Sample O-37.

153. Sample O-38.

154. Sample O-39.

155-158. Okanogan County. Middle pact of Anarchist [Group]. SWi sec. 25.

T. 38 N., R. 26 E., about 5 miles northwest of Tonasket. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Mills, 1962, p. 12, 13, 2:24-226, 227, 245, 25S, 264, pi. 1.) Limestone, medium to dark in color, fine-grained, thin-bedded; calcite 

stringers. Chip samples from outcrop, together represent 200ft. Index 

and geologic maps. Possible use: Portland cement.

155. Sample O-40. 157. Sample O-42.

156. Sample O-41. 158. Sample O-43.

159- 167. Okanogan County. Middle part of Anarchist [Group] . T. 39 N., R. 26 E., 

about 6 miles southwest of town of Oroville, Sinlahekin district. Reed 

property. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Mill. 1962, p. 12, 13, 221-223, 224, 245, 

254. 264, pis. 1, 7.) Chip sample from outcrop. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement, mineral filler, 

pulp and paper, builders' lime, ceramic whiting. 

159,160. Center sec. 4. Lesamiz property. Limestone, light-gray to

dark-gray and black, fine-grained, well-bedded; weathers

gray.

159. Sample O-27 represents 25 ft.

Washington Continued

160. Sample O-28 represents 25 ft.

161-163. Ni sec. 10. Limestone, light- to medium-gray, very fine 

grained, massive; weathers gray; contains small amount of 

silica.

161. Sample O-24 represents 55 ft.

162. Sample O-25 represents 43 ft.

163. Sample O-26 represents 43 ft.

164- 167. Center sec. 35. Limestone, light-gray to gray, mediumto thin-bedded.

164. Sample O-29. 166. Sample O-31.

165. Sample O-30. 167. Sample O-32.

168. Okanogan County. Probably Devonian, Carboniferous, or Mesozolc, Covada 

Group. SWiSEi sec. 16, T. 33 N., R. 26 E., abont 0.75 mile southeast 

of town of Okanogan, Jackass Bntte. Colville Indian Reservation, abandoned quarry. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample O-75. (Mills, 1962, p. 12, 13, 

228, 229, 246. 256, 264, pi. 1.) Limestone, white to light-gray, 

coarse-grained, slightly micaceous. Chip grab sample. Index and 

geologic map. Possible use: None, deposit small, rock impure.

169. Okanogan County. Covada Group. SWiSEi sec. 16, T. 33 N., R. 26 E., 

about 0.75 mile southeast of Okanogan, Jackass Bntte. ( Hodge, 1938d, 

p. 13, J9; Mills, 1962, p. 228, 229.) Limestone. General; Marble, 

green, white; mineralogy. Total thickness about 200 ft. Index map. 

Former use: Lime. Possible use: None.

170-174. Okanogan County. Carboniferous. Center sec. 20, T. 39 N.. R. 29 E.,

2.5 miles north of town of Havillah. Bunch-Wildermuth property. (Mills, 

1962, p. 211, £15-217.) General: Limestone, gray to light-gray, finegrained, thin-bedded; contains calcite and quartz. Tonnage estimated. 

Index and geologic map. Possible use: None, deposit small.

170. Limestone, composite sample. 

171-174. Analyst, W. H. On; collector, Walter Wildermuth.

175- 178. Okanogan County. Carboniferous. Sec. 20, T. 39 N., R. 29 E., 2.5 miles 

north of Havillah. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 215. 216, 

217, 245, 25S. 264, pi. 1.) Limestone, gray to light-gray, fine-grained, 

thin-bedded: contains calcite and quartz; deposit ranges from 50 to 75 ft 

in thickness. Chip sample from outcrop. Tonnage estimated. Index and 

geologic maps. Possible use: Portland cement, mineral filler, pulp and 

paper industry, builders' lime, ceramic whiting; deposit small. 

175, 176. NEiSWi sec. 20. Samples O-33, O-36 represent 75 ft.

177. NEiSWi sec. 20. Sample O-34 represents 40 ft.

178. SEi sec. 20. Sample O-35 represents total thickness in area; 

50ft.

179. Okanogan County. Carboniferous. Probably NEiSEj sec. 34, T. 39 N., 

R. 29 E., east of Havillah. Analyst, A. A. Hammer. (Shedd, 1913, 

p. W9, 244, pi. 21; Mills, 1962, p. 211, 215, 216.) Limestone, blue, 

finely crystalline. Tonnage estimated. Index map. Possible use: 

Portland cement.

180. Okanogan County. Carboniferous( Mills, 1962). T. 39 N., R. 29 E., 5 

miles southwest of town of Chesaw. Analyst, A. A. Hammer. (Shedd, 

1913. p. 164, 165, 244.) Limestone, light-gray, finely crystalline. 

Possible use: Portland cement.

181, 182. Okanogan County. Carboniferous. Sec. 27, T. 40 N.. R. 30 E., 2.6 miles 

northeast of Chesaw, Buckhom Mountain area. Analyst, under supervision 

of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills. 1962, 

p. 12, 13. 211-213, 214, 245, 254, 264, pi. 1.) General: Limestone, 

light-gray to dark-gray, fine-grained, very thin bedded; contains chert; 

about 3,000 ft thick. Chip sample from outcrop. This sample with other 

samples represents 150 ft. Tonnage estimated. Index and geologic maps. 

Possible use: Portland cement, chemical, mineral filler, pulp and paper 

industry, builders' lime, metallurgical, ceramic whiting.

181. Sample 0-14.

182. Sample O-15.
138 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F,), common-rock category Continued

Chemical analyses Continued

SiO, _.

AljOi + FetO, .

MgO ________ .

CaO _______ ,

PjO, ,

Toul ___ ,

Class

CaO/MgO _____ ,

SiO, _________

R_~>.

MgO _________

CaO_____ _____

PjO, _________

8

Ignition loss ____

Total ___

Class _________

CaO/MgO ______

SiO, _________

AljO, + Fe,0,« 

MgO 8 ________

CaO __________

Ignition loss* ____

Total ____

Class _________

CaO/MgO ______

. , /

SiO, ______ .

AljOj + FejO,* __

MgO 8 _______ , CaO ______ _

Ignition loss* _

Total ___ .

Class _______ .

CaO/MgO _____ .

SiO, ______ ,

Al,0, + Fe,0,* .

MgO 5 _______ .

183

46F, 

40-210

.___ 0.71

____ *.23

____ .32

____ 55.44

____ *43.32

____'[ 100 .02]

____ 0,1,98

____ Calcite

196

46F,40-254

____ 3.09

___- .19

____ .24

____ *54.0

____ .007

____ Nil

____ T 42.3

 [99.8]

 3,1,96

____ Calcite

209

46F, 

24-95

____ 2.08

____ 1.46

____ 19.42

____ 31.28

____ 45.76

____ 100.00

____ 0,4,96

____ Dolomite

222

46F,

24-108

. __ 0.50

____ 1.15

____ 20.21

____ 31.40

____ 46.74

____ 100.00

____ 0,1,98

235

46F,24-33

.___ 0.78

.___ 1.16

.___ 19.89

184

46F, 

40-211

1.52 

'.38 

.41 

54.66 

.005 

*42.95

'[99.92] 

1,1,97 

Calcite

197

46F,24-2

4.54 

.61 

1.21 

50.69

42.85

99.90 

4,3,93 

Calcite

210

46F, 

24-96

1.86 

1.60 

19.43 

31.28 

45.83

100.00 

0,3,96 

Dolomite

223

46F, 

24-109

2.10 

1.76 

19.09 

30.94 

46.11

100.00 

0,4,95 

Dolomite

236

46F,24-35

0.48 

.79 

20.43

185

46F, 

40-212

1.97 

'.22 

.40 

54.53 

.007 

*42.80

'[99.93] 

2,1,97 

Calcite

198

46F,24-17

6.46 

41.28 

*12.40 

37.16

*42.70

100.00

4,4,92

Calcareous 

dolomite

211

46F, 

24-97

1.69

2.09

19.72 

30.80 

45.70

100.00 

0.3.96 

Dolomite

224

46FZ 

24-110

0.64 

1.54 

19.98 

31.40 

46.44

100.00 

0,1,98 

Dolomite

237

46F,24-36

0.34 

.98 

20.41

186

46F, 

40-213

3.32 

».31 

.39 

53.63 

.028 

*42.23

'[99.91] 

3,1,96 

Calcite

199

46F,24-18

4.20 

*1.86 

5 12. 89 

37.50

'43.55

100.00

1,5,93

Calcareous 

dolomite

212

46F, 

24-98

1.30 

1.37

20.07 

31.00 

46.26

100.00 

0,2,97 

Dolomite

225

46F, 

24-111

0.73 

1.34 

19.94 

31.48 

46.51

100.00 

0,1,98 

Dolomite

238

46F,24-37

0.31 

1.06 

20.36

W ashing ton C ontinued

187 188 189

46F, 46F, 46F, 

40-214 40-215 40-216

0.90 0.51 1.46 

*.17 *.38 *.27 

.45 .37 .33 

54.46 55.01 54.60 

.012 .008 .005 

*43.13 *43.58 *42.78

[99.12] [99.86] [99.44] 

1,0,98 0.1,99 1,1,97 

Calcite Calcite Calcite

W ashington Continued

200 201 202

46F,24-9 46F,24-10 46F,24-11

3.86 3.38 2.76 

*1.76 *1.44 *1.68 

8 14. 86 8 16.51 8 14.70 

35.46 33.98 36.30

*44. 06 '44.69 '44.56

190

46F, 

40-217

4.14 

'.78 

.34 

52.95 

.009 

*41.47

[99.69] 

3,2,94 

Calcite

203

46F,24-15

1.44 

*1.01 

8 17.51 

34.14

'45.90

100.00 100.00 100.00 100.00

1,5,93 1,4,94 0,5,95 0,3.97

Calcareous Calcareous Calcareous Calcareous 

dolomite dolomite dolomite dolomite

W ashington C ontinued

213 214 215

46F, 46F, 46F, 

24-99 24-100 24-101

1.26 0.56 0.30 

1.07 .85 .90

19.81 20.06 20.26 

31.48 31.68 31.58 

46.38 46.85 46.96

100.00 100.00 100.00 

0,2,97 0,1,98 0,1,99 

Dolomite Dolomite Dolomite

Washington Continued

226 227 228

46F, 46F, 46F, 

24-112 24-113 24-114

0.68 0.32 0.96 

1.32 1.48 1.50 

20.16 20.66 19.84 

31.30 30.80 31.40 

46.54 46.74 46.30

100.00 100.00 100.00 

0,1,98 0,1,98 0,2,97 

Dolomite Dolomite Dolomite

W ashington C ontinued

239 240 241

46F,24-38 46F,24-39 46F,24-40

1.96 1.48 0.49 

1.74 1.21 .78 

19.69 20.41 20.34

216

46F, 

24-102

0.98 

1.24

19.57 

31.86 

46.35

100.00 

0,2,97 

Dolomite

229

46F,

24-27

'0.66 

.56 

20.92 

31.31 

46.55

100.00 

0,1,98 

Dolomite

242

46F,24-41

0.84 

1.26 

20.10

191

46F,

40-218

3.55 

*.63 

.60 

52.80 

.006 

*42.30

[99.89] 

2.2,96 

Calcite

204

46F,24-16

4.17 

*1.24 

8 12.18 

38.76

'43.65

100.00

2.4.94

Calcareous 

dolomite

217

46F,

24-103

0.42 

1.40

19.61 

32.02 

46.55

100.00 

0,1,98 

Dolomite

230

46F, 

24-28

'1.28 

.66 

20.82 

31.26 

45.98

100.00 

0.2,96 

Dolomite

243

46F,24-43

0.52 

.90 

20.07

192

46FZ 

40-219

3.61 

*.72 

.43 

53.10 

.009 

*41.86

[99.73] 

2,2,95 

Calcite

205

46F,24-93

0.84 

41.26 

8 20.61 

30.70

'46.59

100.00 

0,1,98 

Dolomite

218

46F, 

24-104

0.28 

1.35 

20.00 

31.64 

46.73

100.00 

0,1,98 

Dolomite

231

46F, 

24-29

9 0.92 

.69 

20.98 

31.01 

46.40

100.00 

0,2,97 

Dolomite

244

46F,24-44

2.96 

1.22 

19.60

193

46F, 

24-4

6.58 

.26 

1.26 

49.90

41.50

99.50 

6,2,92 

Calcite

206

46F,24-92

1.65 

*2.12 

5 19.80 

30.70

'45.73

100.00 

0,3,96 

Dolomite

219

46F, 

24-105

0.46 

1.34

20.00 

31.54 

46.66

100.00 

0,1,98 

Dolomite

232

46F, 

24-30

9 0.71 

.56 

21.43 

31.03 

46.27

100.00 

0,1,97 

Dolomite

245

46F,24-42

0.56 

1.44 

19.88

194

46F, 

24-5

2.36 

.88 

.96 

51.89

43.21

99.30 

1,4,95 

Calcite

207

46F,24-91

1.91 

4 1.80 

"19.76 

30.80

*45.73

100.00 

0,3,96 

Dolomite

220

46F, 

24-106

0.24 

.96 

20.25 

31.58 

46.97

100.00 

0,0,99 

Dolomite

233

46F, 

24-31

'0.92 

.60 

21.30 

30.81 

46.37

100.00 

0,2,97 

Dolomite

246

46F,24-45

0.78 

1.56 

20.20

195

46F, 

24-1

0.86 

.72 

.35 

54.10

42.50

98.53 

0,2,96 

Calcite

208

46F,24-94

6.57 

*2.38 

818.34 

29.54

8 43.17

100.00 

3,7,90 

Dolomite

221

46F, 

24-107

0.38 

1.20 

20.29 

31.36 

46.77

100.00 

0,1,98 

Dolomite

234

46F,

24-32

'0.82 

.53 

21.40 

30.82 

46.43

100.00 

0,1.97 

Dolomite

247

46F,24-46

1.02 

1.20 

20.15
ANALYSES OF SAMPLES 139

Washington Continued

CaO __

Ignition loss* ___

Total ___

Class _________

CaO/MgO _____

235

46Fj24-33

___ 31.60

___ 46.57

___ 100.00

___ 0.1.98

. _ __ Dolomite

236

46Fj24-35

31.40 

16.90

100.00 

0,1.99 

Dolomite

237

46Fj24-36

31.36 

46.91

100.00 

0.1.99 

Dolomite

238

46Fj24-37

31.40 

46.87

100.00 

0.1.99 

Dolomite

239

46F,24-38

30.86 

45.75

100.00 

0,3.96 

Dolomite

240

46Fj24-39

30.60 

46.30

100.00 

0,3.97 

Dolomite

241

46F,24-40

31.44 

46.95

100.00 

0,1,99 

Dolomite

242

46Fj24-41

31.30 

46.50

100.00 

0.1,98 

Dolomite

243

46Fj24-43

31.68 

46.83

100.00 

0,1,98 

Dolomite

244

46F,24-44

30.72 

45.50

100.00 

1,4,95 

Dolomite

245

46Fj24-42

31.60 

46.52

100.00 

0,1,98 

Dolomite

246

46Fz24-45

30.98 

46.48

100.00 

0,1,98 

Dolomite

247

46Fj24-46

31.16 

46.47

100.00 

0.2.97 

Dolomite

'Sample dried at 110°-112«C: 

ignition loss. 1.000°-1,100°C.

S A composite of samples 183-186 contained 

NajO = 200 ppm. KjO = 720 ppm. TiOj = < 30 ppm. S = 70 ppm. 

4 Iron and alumina. 

*By difference.

'Calculated from repotted CaCO,, 

T CQj, calculated from reported MgO 

and CaCO,.

*950°-l,000°Cj also called CO,. 

' Also reported as insoluble.

Spectrochemical analyses

[ The metallic elements not detected in ihe spectrochemical analysis: LitO,BeO,BtOs .K.lO,SclOs .Vf>s ,^iO,CaO,ZaO,CatOs ,CeOs ,A^tOs ,\tOs ,ZTOt,t9>f>s, MoOj.AgiO.Ru.Rh.Pd, 

CdO, In,O,, SnOj, Sb,O,. BaO .TeO, ,CstO. La»O, .CeQ,. PtjO,. NdjOj. SmtO, ,Eu»O,. GdjO, .TbjO,, DyjO,, Ho,O, .EtjO,, Tm,O,, 

,, ThO,, UO, ]

NajO ____________

TiO, ____________

Cr,0, ___________

MnO ____________

CuO ____________

SrO _____________

183

, __________ .. ____________ 0.05

. __________ .. ____________ .004

, __________ ____________ .0019

__________ ____________ .013

. __________ ____________ .00072

_________ j_ _____________ .021

184

0.015

.0018

.024

.00077

.024

185

.0019

.042

.00099

.029

186

.012

.00054

.016

.00077

.013

187

0.0064

.0013

.058

.00044

.015

188

0.0076

.0013

.072

.00071

.013

189

0.05

.0056

.0013

.02

.0012

.024

190

0.0064

.0017

.028

.0039

.014

191

0.05

.022

.0012

.07

.0014

.021

192

0.0076

.0023

.028

.0037

.020

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

183-192. Okanogan County. Carboniferous. Sec. 27, T. 40 N., R. 30 E., 2.6 miles 

northeast of town of Chesav, Buckhorn Mountain area. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Mills, 1962, p. 12, 13, S111-W3, 214, 245, 254, 264, pi. 1.) General: 

Limestone, light-gray to cU.rk-gray, fine-grained, very thin bedded; contains chert; about 3,000 ft thick. Chip sample from outcrop. Tonnage 

estimated. Index and geologic maps. Possible use: Portland cement, 

chemical, mineral filler, pulp and paper industry, builders' lime, metallurgical, ceramic whiting. 

183 -185. With other samples, represents 150 ft.

183. Sample O-16.

184. Sample 0-17.

185. Sample O-18. 

186 - 188. With other samples, represents 320 ft.

186. SampliO-19.

187. Sample O-21.

188. Sampl5O-23.

189. Sample O-44.

190. Sample O-45.

191. Sample O-46.

192. Sample O-49.

193, 194. Okanogan County. Carboniferous( Mills. 1962). T. 40 N., R. 30 E.,

southwest of Chesaw. Analyst, A. A. Hammer. (Shedd, 1913, p. 163, 

_1<54. 165. 245, pi. 21.) Index maps. Possible use: Portland cement.

193. Limestone, light-gr,iy, very finely crystalline.

194. Limestone, dark-grfy, very fine grained, laminated.

195. Okanogan County. Carboniferous. T. 40 N., R. 30 E., east of Chesaw, 

Buckhorn Mountain. Analyst, A. A. Hammer. (Shedd, 1913, p. 163, 

164. 165. 244; Mills, 1932, p. 211-213, 214.) General: Limestone, 

bluish-gray or blue and white banded, bedded; weathers gray; contains 

chert. Tonnage estimated. Index and geologic maps. Possible use: 

Portland cement.

196, 197. Okanogan County. Carboniferous. Probably T. 40 N., R. 30 E., 1-3 miles 

east of Chesaw, Buckhorn Mountain. ( Mills, 1962, p. 211-213, 214.) 

Tonnage estimated. Poss.bleuse: Portland cement.

196. Hallauer claims. Ceneral: Limestone, bluish-gray or blue and

white banded, bedded; weathers gray; contains chert. Index and 

geologic map.

197. Analyst, A. A. Hatnmer. ( Shedd, 1913. p. 163, 164, 165. 244, 

pi. 21.) Limestcne, dark-gray, occasional thin white seams, 

crystalline, fine-grained. Index and geologic maps.

198-204. Okanogan County. Triassic. Sec. 8, T. 34 N., R. 26 E., about 4.5 miles 

southwest of town of Riveiside. Owner: Beechenow. Deposit 10. 

(Bennett, 1944, p. 6-9, 11, 23, 24. pi. 1; Bennett, 1945, p. J3.) 

Deposit: Dolomitic marble, white; chert veins and limy dolomite in 

upper part; stratigraphic thickness about 250 ft. Fresh sample from out205-

Washington Continued

crop, fragments taken every 5 ft, usually for a length of 50 ft. Tonnage 

estimated. Index and geologic maps. Possible use: General uses of 

dolomite; refractories, crushed stone.

198. SW^NEi sec. 8. Sample 458a.

199. SWiNEi sec. 8. Sample 459a.

200. NWiSEi sec. 8. Sample 450a.

201. NWiSEi sec. 8. Sample 451a.

202. NWiSEi sec. 8. Sample 452a.

203. NW^SEi sec. 8. Sample 456a. Possible use: Source of magnesia.

204. NW|SEi sec. 8. Sample 457a.

228. Okanogan County. Triassic. SW^SE* sec. 10, T. 35 N., R. 26 E. Owner: 

Tim Bernard. Deposit?. (Bennett, 1944, p. 6, 7, 9, 11, 17-19, pis. 5, 

6; Bennett, 1945, p. J3.) Deposit: Dolomite, light- to dark-gray, dense, 

both massive and bedded. Beds where distinct usually more than a foot to 

several feet thick; stratigraphic thickness 165 to more than 1,000 ft. Fresh 

sample from outcrop, fragments taken every 5 ft, usually for a length of 

50 ft. Tonnage estimated. Index and geologic maps. Possible use: 

General uses of dolomite; refractories, crushed stone; for those analyses 

with more than 20 percent MgO, source of magnesia.

229-247.

330 338

Okanogan County. Triassic. T. 35 N., R. 26 E., about 4 miles northwest 

of Riverside. Owner: S. J. Booher. Deposit 9. (Bennett, 1944, p. 6-9, 

11, 22, 23, pi. 7; Bennett, 1945, p. _12.) Deposit: Dolomite, darkgray, dense; probable stratigraphic thickness 400 ft. Fresh sample from 

outcrop, fragments taken every 5 ft, usually for a length of 50 ft. Tonnage estimated. Index and geologic maps. Possible use: General uses 

of dolomite; refractories, crushed stone; for those analyses with more than 

20 percent MgO, source of magnesia. 

229-244. NEiNWi sec. 10.

Sample Sample

229. 420 234. 425

230. 421 235. 426

231. 422 236. 433

232. 423 237. 434

233. 424 238. 435

245. NWiNWj sec. 10. Sample 440.

246, 247. SE.1NW.; sec. 10.

Sample

239. 436

240. 437

241. 438

242. 439

243. 441

244. 442

246. Sample 390. 247. Sample 391.
140 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2), common-rock category Continued

SiO2 ________ . Al2O, + Fe 2O,' __

MgO*_ __

CaO _________

Ignition loss* ___

Total ___

Class- _____ __,

CaO/MgO ______

Si02 _________

AljOa+FejO, 1 __

MgO 2 _________

CaO _________

Total ___

Class _________

CaO/MgO ______

SiO2 _________

AljOj+FejO, 1 __

MgO* ______ J._

CaO _________

Ignition loss* ____

Total ____

Class _________

CaO/MgO ___ __

SiOj _________

AljOj+FejO, 1 __

MgO* ________

CaO _________

Total ____

CaO/MgO ______

SiO2 _________

AljOa+FejOa 1 __

MgO 2 ____ _

CaO _________

Total ___

Class _________

CaO/MgO_ ___

248

46F224-48

__ 0.58

__ 1.28

__ 20.02

__ 31.50

__ 46.62

__ 100.00

__ 0.1.98

_ ._ Dolomite

261

46F224-61

__ 1.30

__ 1.32

__ 19.72

__ 31.44

__ 46.22,

__ 100.00

__ 0.2.97

__ Dolomite

.274

46F224-74

__ 2.32

__ 1.44

__ 30.66

__ 45.86

__ 100.00

__ 0.4,96

__ Dolomite

287

46F2 

24-85

__ 0.58

__ .97

__ 19.90

__ 31.58

__ 46.97

__ 100.00

__ 0,1.98

_ _ Dolomite

300

46F2 

24- 124

__ 4 0.58

__ .68

__ 20.79

__ 30.97

__ 46.98

__ 100.00

__ 0,1,99

__ Dolomite

249

46F224-49

0.37

1.20

20.23

31.36

46.84

100.00

0,1.98

Dolomite

262

46F224-62

1.48

1.40

20.80

30.04

46.28

100.00

0.3.97

Dolomite

275

46F224-75

1.52

1.74

19.81

30.94

45.99

100.00

0,3,96

Dolomite

288

46F2 

24-86

0.42

1.20

20.20

31.32

46.86

100.00

0.1,98

Dolomite

301

46F2 

24-125

4 1.22

.72

20.63

30.77

46.66

100.00

0,2,98

Dolomite

250

46F224-50

2.33

1.94

19.62

30.62

45.49

100.00

0.4.95

Dolomite

263

46F224-63

1.42

1.13

20.01

31.10

46.34

100.00

0.2.97

Dolomite

276

46F224-76

1.65

1.04

31.00

46.27

100.00

0.3.97

Dolomite

289

46F2 

24-87

0.30

1.45

19.98

31.58

46.69

100.00

0.1.98

Dolomite

302

46F2 

24-126

4 0.74

.78

20.53

31.12

46.83

100.00

0,1.98

Dolomite

251

46F224-51

1.00

1.56

19.94

31.22

46. 2P

100.00

0,2.97

Dolomite

264

46F224-64

0.73

1.12

19.97

31.56

46.62

100.00

0.1,98

Dolomite

277

46F224-77

1.95

1.64

31.42

45.74

100.00

0,3.96

Dolomite

290

46F2 

24-88

0.55

1.23

20.39

31.16

46.67

100.00

0.1,98

Dolomite

303

46F2

24- 127

4 1.08

.66

20.51

31.02

46.73

100.00

0,2,98

Dolomite

Chemical analyse* Continued

W a shington C ontinued

252 253 254

46F224-52 46F224-53 46F224-54

0.74 0.66 0.38

1.76 1.31 1.58

20.10 20.07 19.81

31.06 31.40 31.70

46.34 46.56 46.53

100.00 100.00 100.00

0,1,97 0,1,98 0.1.98

Dolomite Dolomite Dolomite

Washington Continued

265 266 267

46F224-65 46F224-66 46F224-67

3.20 1.84 2.00

1.86 .94 .99

19.09 19.96 19.81

30.82 31.06 31.12

45.03 46.20 46.08

100.00 100.00 100.00

0.5.94 0.3.97 0.3.97

Dolomite Dolomite Dolomite

Washington Continued

278 279 280

46F224-78 46F224-79 46F,24-80

1.22 0.66 1.10

.86 2.22 1.25

46.57 46.12 46.69

100.00 100.00 100.00

0,2.98 0,1.97 0.2.97

Dolomite Dolomite Dolomite

Washington Continued

291 292 293

46F2 46F2 46F2 

24-89 24-90 24-117

1.27 1.80 0.72

.84 1.56 1.72

20.47 19.59 20.10

30.84 31.20 31.08

46.58 45.85 46.38

100.00 100.00 100.00

0,2.98 0,3,96 0,1,97

Dolomite Dolomite Dolomite

Washington Continued

304 305 306

46F2 46F2 46F2 

24-128 24-129 24-130

4 1.16 4 0.96 4 1.61

1.10 .68 1.18

20.44 20.73 20.48

30.82 30.82 30.47

46.48 46.81 46.26

100.00 100.00 100.00

0,2.97 0,2.98 0,3.97

Dolomite Dolomite Dolomite

255

46F224-55

1.78

1.92

19.89

30.64

45.77

100.00

0.3.96

Dolomite

268

46F224-68

0.31

.66

20.62

31.32

47.09

100.00

0.1.99

Dolomite

281

46F224-115

0.40

1.00

20.09

31.70

46.91

100.10

0.1,99

Dolomite

294

46F2 

24-118

0.58

1.08

20.21

31.38

46.75

100.00

0,1.98

Dolomite

307

46F2 

24-131

4 1.02

1.06

20.73

30.57

46.62

100.00

0,2,98

Dolomite

256

46F224-56

1.68

1.68

20.12

30.56

45.96

100.00

0.3,96

Dolomite

269

46F224-69

0.35

.80

20.19

31.70

46.96

100.00

0.1,99

Dolomite

282

46F224-116

0.48

1.68

22.33

28.64

46.87

100.00

0,1,98

Dolomite

295

46F2 

24-119

4 0.80

.69

21.27

30.72

46.52

100.00

0,1,97

Dolomite

308

46F2 

24-132

4 2.82

1.36

20.25

29.97

45.50

99.90

1.4,95

Dolomite

257

46F224-57

1.34

1.84

19.41

31.48

45.93

100.00

0.2.96

Dolomite

270

46F224-70

1.65

1.23

21.76

28.92

46.44

100.00

0,3.97

Dolomite

283

46F:24-81

0.35

1.93

19.15

32.28

46.29

100.00

0.1.98

Dolomite

296

46F2 

24-120

4 0.96

.84

20.91

30.92

46.37

100.00

0.2.97

Dolomite

309

46F2

24-133

4 1.76

1.30

20.46

30.34

46.14

100.00

0,3.96

Dolomite

258

46F224-58

1.02

1.45

19.57

31.76

46.20

100.00

0,2.97

Dolomite

271

46F224-71

0.47

1.31

20.10

31.46

46.66

100.00

0.1,98

Dolomite

284

46F224-82

0.50

.98

19.81

31.94

46.77

100.00

0.1.98

Dolomite

297

46F2 

24-121

4 0.58

.68

20.82

31.31

46.61

100.00

0,1.98

Dolomite

310

46F2 

24-134

4 1.22

.92

20.58

30.72

46.56

100.00

0,2,97

Dolomite

259

46F224-59

0.79

.79

19.89

31.82

46.71

100.00

0.1.98

Dolomite

272

46F224-72

1.82

1.60

20.08

31.16

45.34

100.00

0.3.95

Dolomite

285

46F224-83

0.36

.72

20.18

31.76

46.98

100.00

0,1,99

Dolomite

298

46F2 

24-122

4 0.76

.62

20.60

31.12

46.90

100.00

0,1,98

Dolomite

311

46F2 

24-154

1.64

1.38

20.03

30.82

46.13

100.00

0,3,97

Dolomite

260

46F224-60

1.44

1.42

19.02

32.10

46.02

100.00

0.3.97

Dolomite

273

46F224-73

1.74

1.28

19.80

31.00

46.18

100.00

0,3.97

Dolomite

286

46F:24-84

0.40

1.10

19.94

31.80

46.76

100.00

0.1.98

Dolomite

299

46F2 

24-123

4 0.86

.61

20.73

30.92

46.88

100.00

0.2.98

Dolomite

312

46F2 

24-155

1.50

1.56

19.81

31.05

46.08

100.00

0,3,97

Dolomite
ANALYSES OP SAMPLES 141

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Fz).common-rock category Continued

Chemical analyses Continued

SiOj _________

MgO z ________

CaO _________

Ignition loss* ___

CaO/MgO ______

313

46FZ 

24-156

__ 0.63

__ 1.00

__ 20.42

__ 31.19

__ 46.76

__ 100.00

__ 0.1.98

_ _ Dolomite

326

314

46Fj 

24-157

2.45 

1.46 

19.96 

30.42 

45.71

130.00

0.4,95 

Do lomite

327

46FZ24-169 46FZ 24-170

SiOz __ _______

MgOz

CaO ____ _____

Ignition loss* _ 

Class _________

CaO/MgO ______

SiO, _ ________

MgO z _________

CaO __________

Ignition loss* _ 

Total ___

CaO/MgO ______

__ 0.26

__ .66

20.22

31.80

__ 47.06

__ 100.00

__ 0.0.99

__ Dolomite

339

46FZ 

24-149

__ 41.56

. __ .94

. __ 20.84

. __ 30.72

. __ 45.94

100.00

. __ 0.3.96

. __ Dolomite

0.29 

.78 

20.58 

31.35 

47.00

3.00.00

d.1.99 

Dolomite

340

46F, 

24-150

4 0.76 

.75 

20.98 

30.97 

46.54

100.00.

3.1,98 

Dolomite

315

46Fj 

24-158

2.26 

1.36 

19.62 

30.98 

45.78

100.00

0,4.96 

Dolomite

328

46FZ24-171

0.30 

.82 

20.20 

31.14 

47.54

100.00

0,2,98 

Dolomite

341

46F, 

24-351

4 0.24 

.52 

21.79 

30.97 

46.48

100.00

0.0.97 

Dolomite

316

46FZ 

24-159

1.42 

1.16

20.19 

30.94 

46.29

100.00

0,2,97 

Dolomite

329

46FZ24-172

0.33 

1.12 

20.40 

31.32 

46.83

100.00

0.1,98 

Dolomite

342

46FZ 

24-152

4 5.02 

.70 

18.97 

30.47 

44.85

100.01

4.2,94 

Dolomite

W ashington C ontinued

317 318 319

46FZ 46FZ 46F2 

24-160 24-161 24-162

0.95 2.00 0.55 

1.42 .94 1.11 

20.21 19.76 20.06 

31.00 31.20 31.55 

46.42 46.10 46.73

100.00 100.00 100.00

0,2.97 0.3.97 0,1.98 

Dolomite Dolomite Dolomite

Washington Continued

330 331 332

46FZ24-173 46FZ24-174 46FZ24-175

0.31 0.58 0.26 

.84 2.23 1.60 

20.47 20.08 20.08 

31.40 30.92 31.46 

46.98 46.19 46.60

100.00 100.00 100.00

0.1.99 0.1,97 0.0,98 

Dolomite Dolomite Dolomite

Washington Continued

343 344 345

46FZ 46FZ 46FZ 

24-176 24-177 24-178

1.82 2.60 2.35 

1.06 1.25 1.10 

20.06 19.72 19.59 

30.90 30.74 31.15 

46.16 45.69 45.81

100.00 100.00 100.00

1,3,97 1.4,96 1.3.96 

Dolomite Dolomite Dolomite

320

46FZ 

24-163

2.02 

1.08 

19.51 

31.42 

45.97

100.00

0.3.96 

Dolomite

333

321

46FZ 

24-164

0.90 

1.19 

20.10 

31.26 

46.55

100.00

0.2.98 

Dolomite

334

46F|24-136 46F,24-138

5.30 

1.98 

19.08 

29.58 

44.06

100.00

2,6.92 

Dolomite

346

46FZ 

24-179

0.76 

1.30 

20.12 

31.28 

46.54

100.00

0,1,98 

Dolomite

7.15 

2.21 

18.35 

29.25 

43.04

100.00

3.6.90 

Dolomite

347

46FZ 

24-180

0.72 

1.01 

20.21 

31.35 

46.71

100.00

0.1,98 

Dolomite

322

46FZ 

24-165

0.76 

1.35 

20.28 

31.05 

46.56

100.00

0,1,98 

Dolomite

335

323

46FZ 

24-166

0.66 

.78 

21.15 

30.42 

46.99

100.00

0.1.98 

Dolomite

336

324

46FZ 

24-167

0.30 

1.08 

20.49 

31.22 

46.91

100.00

0,1,99 

Dolomite

337

325

46FZ 

24-168

0.28 

.80 

20.54 

31.36 

47.02

100.00

0.0,99 

Dolomite

338

46FZ24-139 46F,24-146 46F,24-147 46FZ24-148

5.21 

2.25 

19.23 

29.28 

44.03

100.00

1.7.91 

Dolomite

348

46FZ 

24-181

0.22 

1.02 

20.26 

31.52 

46.98

100.00

0.0,99 

Dolomite

4 6.62

1.50 

20.01 

28.95 

42.92

100.00

4.4.89 

Dolomite

349

46FZ 

' 24-182

1.00 

.92 

20.23 

31.20 

46.65

100.00

0.2,98 

Dolomite

4 5. 34 

1.36 

19.90 

29.10 

44.30

100.00

3,4,92 

Dolomite

350

46FZ 

24-153

1.35 

. 1.44 

19.95 

31.04 

46.22

100.00

0.2,97 

Dolomite

4 2.96 

.84 

20.30 

30.28 

45.62

100.00

2,2,95 

Dolomite

351

46FZ 

24-183

0.32 

.95 

20.15 

31.70 

46.88

100.00

0.1,99 

Dolomite

Kand alumina. 1 By difference. *950e-1.0000C; also called COj. 4 Also repotted as insoluble.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis] 

Washington Continued Washington Continued

248-269. Okanogan County . Triassic. SE4 NWi sec. 10, T. 35 N., R. 26 E., about

4 miles northwest of town of Riverside. Owner, S. J. Booher. Deposit 9.

( Bennett, 1944, p. 6-9. 1] . 22, 23, pi. 7; Bennett, 1945. p. ^2.)

Deposit: Dolomite, dark-gray, dense; probable stratigraphic thickness

4UO ft. Fresh sample from outcrop, fragments taken every 5 ft, usually

for a length of 50 ft. Tonnage estimated. Index and geologic maps.

Possible use: General uses rf dolomite; refractories, crushed stone; for

those analyses with more than 20 percent MgO, source of magnesia.

Sample Sample Sample

248. 398 256. 406 263. 413

249. 399 257. 407 264. 414

250. 400 £58. 408 265. 415

251. 401 259. 409 266. 416

252. 402 260. 410 267. 417

253. 403 261. 411 268. 418

254. 404 262. 412 269. 419

255. 405

270-351. Okanogan County . Triassic. T. 35 N., R. 26 E. Deposit 7. (Bennett,

1944, p. 6. 7, 9, 11. 17- 19. pis. 5, 6; Bennett, 1945, p. 8.) Deposit:

Dolomite, light- to dark-gray, dense, both massive and bedded. Beds

where distinct usually mort than a foot to several feet thick; stratigraphic

thickness 165 to more than 1,000 ft. Fresh sample from outcrop, fragments taken every 5 ft, usually for a length of 50 ft. Tonnage estimated.

Index and geologic maps. Possible use: General uses of dolomite; refractories, crushed stone; for those analyses with more than 20 percent MgO,

source of magnesia .

270-275. NE4 SW 4 sec. : 0. Owner, S. J. Booher.

Sample Sample Sample

270. 339 272. 341 274. 343

271. 340 273. 342 275. 344

276-292. NW 4 SE4 sec. : 0. Owner, R. E. Smith.

276.

277.

278.

279.

280.

281.

293, 294. SE4 SE4

295-332. NEjNE4

295.

296.

297.

298.

299.

300.

301.

302.

303.

304.

305.

306.

307.

Sample

345

346

347

348

349

350

sec. 10.

sec. 15.

Sample

273

274

275

276

277

278

279

280

281

282

283

284

285

333-351. NW 4 NE4 sec. 15. ~"

333.

334.

335.

336.

337.

338.

339.

Sample

256

258

259

266

267

26B

269

Sample

282. 351

283. 352

284. 353

285. 354

286. 355

287. 356

Owner, R. E. Smith.

Owner, Tim Bernard.

Sample

308. 286

309. 287

310. 288

311. 274a

312. 275a

313. 276a

314. 277a

315. 278a

316. 279a

317. 280a

318. 281a

319. 282a

320. 283a

Owner, Tim Bernard

Sample

340. 270

341. 271

342. 272

343. 289

344. 290

345. 291

288.

289.

290.

291.

292.

Sample

357

358

359

360

361

Samples 316, 317

321.

322.

323.

324.

325.

326.

327.

328.

329.

330.

331.

332.

346.

347.

348.

349.

350.

351.

Sample

284a

285a

286a

287a

288a

289a

290a

291a

292a

293a

294a

295a

Sample

292

293

294

295

273a

296

487-187 O - 73 - 10
142 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2> common-rock category Continued

Si02 _________

AljOj+FezO, 1 __

MgO 2 ________

CaO ________

Ignition loss* ____

Total ____

Class _________

CaO/MgO ______

Si02 _________

AljOj+FejO, 1 

MgO 2 _________

CaO _________

Total ____

Class _________

CaO/MgO ______

SiO2 _________

A12OS tFejO, 1 __

MgO 2

CaO _________

Ignition loss* ___

Total ____

Class _________

CaO/MgO ______

SiO2 _________

MgO 2 ________

CaO _________

Ignition loss* ___

Total ____

Class _________

CaO/MgO ______

Si02 _ ________

Al^+FejO, 1 

MgO 2 ________

CaO _________

Total ____

Class _________

CaO/MgO ______

352

46F2 

24-184

__ 0.25

__ 1.26

20.20

__ 31.46

__ 46.83

__ 100.00

__ 0,0,98

365

46F2 

24-197

__ 6.57

__ 2.36

__ 18.68

__ 29.14

__ 43.25

__ 100.00

__ 3,7,90

___ Dolomite

378

46F, 

24-218

__ 4.86

__ 1.90

__ 19.24

__ 29.70

__ 44.30

__ 100.00

__ 2.6,92

391

46F, 

24-235

4.12

__ 1.91

__ 18.31

__ 31.20

__ 44.46

__ 100.00

__ 1,6,93

Calcareous

dolomite

404

46F, 

24-262

__ 3.38

__ 2.34

__ 18.85

__ 30.74

__ 44.69

__ 100.00

__ 0,6,93

353

46F2 

24-185

0.88

1.00

20.18

31.29

46.65

100.00

0,2.98

366

46F2 

24-198

4.24

2.40

19.26

29.72

44.38

100.00

0,7,92

Dolomite

379

46F2 

24-219

5.35

1.62

18.72

30.18

44.13

100.00

3,5.92

392

46F,

24-236

5.01

2.56

18.50

30.11

43.82

100.00

1,7.91

405

46F, 

24-263

5.35

1.92

18.22

30.60

43.91

100.00

2.6,92

354

46F2 

24-186

0.90

.85

20.19

31.36

46.70

100.00

0.2,98

367

46F2 

24-199

2.36

1.85

20.08

30.14

45.57

100.00

, 0.4.95

Dolomite

380

46F2 

24-220

3.78

1.77

19.13

30.46

44.86

100 .00

1,5.94

393

46F2 

24-237

3.14

2.60

18.69

30.90

44.67

100.00

0.5.93

406

46F,

24-274

5.70

3,16

17.79

30.20

43.15

100.00

0.9,89

355

46F2 

24-187

0.78

1.06

20.33

31.20

46.63

100.00

0,1,98

368

46F2 

24-201

3.12

1.98

19.38

30.44

45.08

100.00

0,5,94

Dolomite

381

46F, 

24-222

6.20

2.95

18.09

29.70

43.06

100.00

1,9,89

394

46F, 

24-240

4.75

2.62

18.82

29.84

43.07

99.10

0,8.89

407

46Ft 

24-275

5.50

2.68

18.52

29.22

43.58

99.50

1.8.90

Chemical analyses Continued

Washington Continued

356 357 358

46F2 46F2 46F2 

24-188 24-189 24-190

1.23 1.10 3.38

1.56 1.60 2.45

19.95 19.96 19.18

31.03 31.12 30.42

46.23 46.22 44.57

100.00 100.00 100.00

0,2,97 0.2,97 0,6.93

Washington Continued

369 370 371

46F2 46F2 46F2 

24-202 24-204 24-251

6.10 4.90 7.36

2.55 1.94 1.86

18.62 19.24 18.75

29.35 29.64 28.90

43.38 44.26 43.13

100.00 99.98 100.00

2,7.90 2,6,92 4,5,90

Dolomite Dolomite Dolomite

Washington Continued

382 383 384

46F, 46F, 46F, 

24-223 24-225 24-226

6.08 5.53 5.24

2.55 2.82 2.70

18.17 18.38 17.76

29.88 29.82 30.20

43.32 43.45 44.10

100.00 100.00 100.00

2.7.90 1.8,90 1,8.91

Calcareous

dolomite

Washington Continued

395 396 397

46F, 46F, 46Fj 

24-242 24-246 24-247

4.94 3.54 4.14

3.49 2.94 2.68

18.59 18.81 18.93

29.55 30.36 30.00

43.43 44.35 44.25

100.00 100.00 100.00

0.9.90 0.6,92 0.7.92

Washington Continued

408 409 410

46F, 46F2 46F, 

24-277 24-284 24-285

6.04 0.30 0.18

2.71 1.04 1.72

18.20 19.14 18.57

29.80 32.88 33.20

43.25 46.64 46.33

100.00 100.00 100.00

2.8.90 0.1.98 0,0,98

Calcareous Calcareous

dolomite dolomite

359

46F2 

24-191

1.52

2.02

19.57

31.10

45.79

100.00

0,3.96

Dolomite

372

46F2 

24-245

6.25

2.66

17.87

30.20

43.02

100.00

2.8.89

Dolomite

385

46F, 

24-228

4.48

2.45

18.37

30.64

44.06

100.00

0.7.92

398

46F, 

24-252

5.50

3.14

18.77

29.20

43.39

100 .00

0.9,90

Dolomite

411

46F, 

24-286

1.12

1.84

19.73

31.22

46.09

100.00

0,2,97

360

46F2 

24- 192

1.10

1.96

19.81

30.96

46.17

100.00

0,2,97

Dolomite

373

46F2 

24-209

6.85

2.22

17.99

29.85

43.09

100.00

3,6,90

Dolomite

386

46Ft 

24-229

4.38

2.82

18.66

30.68

43.46

100.00

0.8.90

Dolomite

399

46Ft 

24-256

5.18

2.84

18.42

29.96

43.60

100.00

0.8.90

Dolomite

412

46F, 

24-288

6.56

1.82

18.74

29.36

43.52

100.00

4.5.91

361

46F2 

24-193

3.01

1.94

18.92

31.04

45.09

100.00

0.5.94

Dolomite

374

46F2 

24-212

6.14

2.68

18.22

29.72

43.24

100.00

2.8.90

Dolomite

387

46F, 

24-230

3.88

1.90

18.69

30.89

44.64

100.00

1.6.93

Dolomite

400

46Ft 

24-281

4.90

3.00

19.09

29.20

43.81

100.00

0.9.91

Dolomite

413

46Ft 

24-290

7.81

1.58

18.36

29.24

43.01

100.00

5,5,90

362

46F2 

24-194

2.05

1.34

19.71

30.96

45.94

100.00

0.4,96

Dolomite

375

46F2 

24-214

4.12

2.38

18.81

30.34

44.35

100.00

0.7,92

Dolomite

388

46F2 

24-231

3.49

1.55

19.12

30.78

45.06

100.00

1,5,94

Dolomite

401

46F,

24-283

4.15

2.78

18.98

29.90

44.19

100.00

0,7,92

Dolomite

414

46F, 

24-293

1.56

1.20

19.77

31.30

46.17

100 .00

0,3.97

Dolomite

363

46F2 

24-195

1.20

1.25

20.06

31.16

46.33

100.00

0,2,97

Dolomite

376

46F2 

24-215

4.70

2.12

19.66

29.80

43.72

100.00

1,6,91

Dolomite

389

46F2 

24-232

2.92

1.85

19.53

30.42

45.28

100.00

0.5,94

Dolomite

402

46F, 

24-260

6.44

1.86

18.41

29.80

43.49

100.00

3,5,91

Dolomite

415

46F| 

24-294

2.14

1.12

19.71

31.10

45.93

100.00

0,3,96

Dolomite

364

46F2 

24-196

0.48

1.43

20.28

31.20

46.61

100.00

0.1.98

Dolomite

377

46F2 

24-216

6.81

2.14

18.79

29.00

43.26

100.00

3.6.90

Dolomite

390

46F2 

24-234

5.50

2.84

17.94

30.30

43.42

100.00

1.8.90

Dolomite

403

46Ft 

24-261

4.52

1.80

18.32

30.90

44.46

100.00

2,5,93

Dolomite

416

46F, 

24-295

1.03

1.24

19.86

31.48

46.39

100 .00

0.2.97

Dolomite
ANALYSES OF SAMPLES 143

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Ft), common-rock category Continued

Chemical analyses Continued

Washington Continued

SiO, __ __

MgO* ________

CaO _________

Total ___

Class ________

CaO/MgO _____

417 A 18

46F.24-296 46F.24-297

___ 1.28 2.52

___ 1.45 1.79

___ 19.92 19.03

_ _ 31.10 31.30

___ 46.25 45.36

___ 100.00 100.00

. ___ 0,2,97 0,4,95

. _ _ Dolomite Dolomite

419

46F-24-298

4.70 

2.81

18.87 

29.70 

43.92

100.00 

0,8,91

Dolomite

420

46F-40-5

5.70 

1.68 

17.36 

31.58 

43.68

100.00 

3,5,92

Calcareous 

dolomite

421 422

46F-40-17 46F-40-19

2.45 4.64 

2.00 2.04

19.38 18.97 

30.84 30.06 

45.33 44.79

100.00 100.50 

0,4,95 1,6,93

Dolomite Dolomite

423

46F-40-20

4.80 

2.10

18.90 

30.00 

44.20

100.00 

1,6,92

Dolomite

424

46F-40-21

4 2.28 

.80

20.72 

30.02 

46.18

100.00 

1,2.96

Dolomite

425

46F.40-22

4 1.14 

.90

21.56 

29.62 

46.78

100.00 

0,2,98

Dolomite

426

46F-40-23

4 0.54 

.84

21.67 

29.87 

47.08

100.00 

0,1,98

Dolomite

427

46F-40-24

4 0.36 

.62

21.65 

30.11 

47.26

100.00 

0,1.99

Dolomite

428

46F.40-25

4 0.42 

.56

21.48 

30.31 

47.23

100.00 

0,1,99

Dolomite

429

46F-40-26

4 0.60 

.56

21.73 

29.92 

47.19

100.00 

0,1,99

Dolomite

Washington Continued

SiO, __ _ __ _

MgO* ___ _

CaO _________

Ignition loss* _ ._

Total __

Class ________

CaO/MgO _____

430 431

46F.40-28 46F-40-29

___ 4.20 2.48

___ 1.78 1.50

___ 19.04 20.13

___ 30.35 30.20

___ 44.63 45,69

___ 100.00 100.00

___ 1.5,93 0,4,95

___ Dolomite Dolomite

432

46F.40-31

1.70 

1.02 

19.70 

31.38 

46.20

100.00

0,3,97 

Dolomite

433

46F.40-32

0.75 

1.22 

19.68 

31.84 

46.51

100.00

0,1,98 

Dolomite

434 435

46F-40-33 46F-40-34

0.68 2.48 

1.08 1.32 

19.81 19.27 

31.78 31.08 

46.65 45.85

100.00 100.00

0,1.98 0,4,96 

Dolomite Dolomite

436

46F-40-35

3.12 

2.24 

18.76 

31.04 

44.84

100.00

0,5,94 

Dolomite

437

46F.40-36

0.72 

1.88 

19.67 

31.52 

46.21

100.00

0.1.97 

Dolomite

438

46F-40-37

0.86 

1.84 

19.41 

31.18 

46.71

100.00

0.2,96 

Dolomite

439

46F.40-38

1.22 

2.24 

19.48 

31.24 

45.82

100.00

0.2,96 

Dolomite

440

46F.40-39

2.91 

3.02 

19.08 

30.34 

44.65

100.00

0.5.93 

Dolomite

441

46F.40-41

5.92 

1.82 

18.39 

30.16 

43.71

100.00

3,5,91 

Dolomite

442

46Fs40-42

5.35 

2.21 

18.69 

29.86 

43.89

100.00

2,6,91 

Dolomite

1 Iion and alumina. 1 By difference. * 950°-1,000°C; also called COt.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

4 Also reported as insoluble.

Washington Continued

352-397. Okanogan County. Triassic. Sec. 15, T. 35 N., R. 26 E. Deposit?.

( Bennett, 1944, p. 6, 7, 9, 11, 17-19, pis. 5, 6; Bennett, 1945, p. 8.) 

Deposit: Dolomite, light- to dark-gray, dense, both massive and bedded. 

Beds where distinct usually more than a foot to several feet thick; stratigraphic thickness 165 to more than 1,000 ft. Fresh sample from outcrop, 

fragments taken every 5 ft, usually for a length of 50 ft. Tonnage estimated. Index and geologic maps. Possible use: General uses of dolomite; 

refractories, crushed stone; for those analyses with more than 20 percent 

MgO, source of magnesia.

352-367. NW^NEi sec. 15. Owner, Tim Bernard.

Washington Continued 

400-405. SEjSEi sec. 15. Owner, R. E. Smith.

406-408. NEiNEi sec. 22. Owner. R. E. Smith.

406. Sample 174. 407. Sample 175. 408. Sample 177. 

409-420. NWjNE} sec. 22. Owner, Mrs. W. V. West.

Sample

409. 140

410. 141

411. 142

412. 144 416. 151 420. 161

302 

368-370. SWiNEi sec. 15. Owner, Tim Bernard.

368. Sample 240. 369. Sample 241. 370. Sample 243. 

371. NWiSEi sec. 15. Owner, Tim Bernard. Sample 203. 

372-375. SEiNEl sec. 15. Owner, R. E. Smith.

Sample 391. ~~225 

372.

373.

376-397. NE^SEi

376.

377.

378.

379.

380.

381.

382.

383.

Sample

235

248

sec. 15.

Sample 

 204

205

207

208

209

211

212

214

374.

375.

Owner, R

384.

385.

386.

387.

388.

389.

390.

Sample

251

254

. E. Smith.

 

Sample 2T5~

218

219

220

221

222

224

392.

393.

394.

395.

396.

397.

226

227

230

232

236

237

421-423. County, age, maps, and use as in samples 352-397. SEJNEi sec. 22,

T. 35N., R. 26 E., 2 miles northwest of Riverside. Deposits. (Bennett, 

1944, p. 6-9, 11, 16, pi. 4; Bennett. 1945, p. 6.) Deposit: Dolomite, 

gray, thick-bedded to massive; contains many cherty quartz veinlets. 

Fresh sample from outcrop, fragments taken every 5 ft, usually for a 

length of 50 ft. Tonnage estimated.

421. SampleA37. 422. Sample 138. 423. Sample 139.

424-442. County, age, maps, and use as in samples 352-397. Sec. 23, T. 35 N., 

R. 26 E., about 1.5 miles northwest of Riverside. Owners, Emmett, 

Omar, and R. E. Smith. Deposit 8. ( Bennett, 1944, p. 6-9, 11, 20, 

21, pi. 3; Bennett, 1945, p.JU.) Deposit: Dolomite, light-gray, finegrained; stratigraphic thickness 200-300 ft. Fresh sample from outcrop, 

fragments taken every 5 ft, usually for a length of 50 ft. Samples representative of deposit. Tonnage estimated. 

424-429. NEiNWi sec. 23.

424.

425.

383

384

426.

427.

385

386

428.

429.

387

388

398-420. County, age, maps, and use as in samples 352-397. T. 35 N.. R. 26 E., 

about 2.5 miles northwest of town of Riverside. Deposit 6. (Bennett, 

1944, p. 6-9, 11, 17, pi. 4; Bennett, 1945, p. 7.) Deposit: Dolomite, 

gray, massive; some siliceous beds. Fresh sample from outcrop, fragments 

taken every 5 ft, usually for a length of 50 ft. Tonnage estimated.

398,399. SWiSEJ sec. 15. Owner, Mrs. W.V. West. Samples 184, 188.

430-440. SEiNWi sec. 23. 

Sample

441, 442. NE4 SWi sec. 23. Samples 363, 364.
144 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F^), common-rock category Continued

Chemical analyses Continued

Washington Continued

SiO2 ____________

AljOj+Fe^, 1 ________

MgO* ______________

CaO ______________

Total _ ________

Class ______________

CaO/MgO ___________

443

46Fj40-43

_____ 3.38

_____ 1.35

_____ 19.41

_____ 30.62

_____ 45.24

_____ 100.00

_____ 1,4,95

_ ____ Dolomite

444

46Fj40-44

2.72 

1.56 

19.66 

30.50 

45.56

100.00 

0,5,95 

Dolomite

445

46FJ40-45

5.41 

1.52 

18.24 

30.20 

44.63

100.00 

3,5,92 

Dolomite

446 447

46Fj40-46 46Fj40-70

2.18 4.35 

2.09 2.00 

19.84 18.98 

30.40 30.23 

45.49 44.44

100.00 100.00 

0,4,95 1,6,93 

Dolomite Dolomite

448

46Fj40-71

3.50 

1.75 

19.50 

30.43 

44.82

100.00 

1.5,93 

Dolomite

449

46F240-72

4.00 

2.54 

19.16 

29.93 

44.37

100.00 

0,7.92 

Dolomite

450

46Fj40-73

3.88 

2.08 

19.42 

29.93 

44.69

100.00 

0,6.93 

Dolomite

451

46F240-74

5.12 

2.35 

19.54 

28.95 

43.04

99.00 

1,7,89 

Dolomite

452

46Fj40-75

3.21 

2.42 

20.27 

29.34 

44.76

100.00 

0,6,93 

Dolomite

Washington Continued

SiOi ______________

AljO,+Fe2(V ________

MgO* _____________

CaO ______________

Total _________

Class ______________

CaO/MgO ___________

455

46FZ 

40-79

_____ 4.11

_____ 2.30

_____ 19.38

_____ 29.74

_____ 44.47

_____ 100.00

_____ 0,7.92

 ___ Dolomite

456

46FZ 

40-80

4.30 

2.54 

18.46 

30.58 

44.12

100.00 

0,7,92 

Dolomite

457

46F2 

40-81

5.05 

2.00 

19.36 

29.49 

44.10

100.00 

2,6.92 

Dolomite

458 459

46FZ 46FZ 

40-84 40-86

5.00 4.60 

2.35 2.20 

18.67 18.52 

30.08 30.52 

43.90 44.16

100.00 100.00 

1.7.91 1,6,92 

Dolomite Dolomite

460

46FZ 

40-88

4.41 

2.01 

18.34 

30.80 

44.44

100.00 

1.6,93 

Dolomite

461

46F2 

40-50

6.18 

1.94 

18.21 

30.16 

43.51

100.00 

3.6.91 

Dolomite

462

46FZ 

40-139

1.70 

1.88 

19.56 

31.14 

45.72

100.00 

0,3,96 

Dolomite

463

46Fj 

40-140

1.22 

1.70 

19.85 

31.18 

46.05

100.00 

0,2,97 

Dolomite

464

46F2 

40-141

1.03 

2.00 

19.60 

31.36 

46.01

100.00 

0,2,97 

Dolomite

453

46FJ40-76

2.88 

2.07 

20.24 

29.54 

45.27

100.00 

0,5.94 

Dolomite

465

46Fj 

40-142

2.21 

2.25 

19.16 

31.07 

45.31

100.00 

0,4.95 

Dolomite

454

40F240-78

1.86 

2.10 

20.31 

30.08 

45.77

100.12 

0,3.96 

Dolomite

466

46FZ 

40-143

1.60 

2.70 

19.49 

30.78 

45.43

100.00 

0,3,95 

Dolomite

Washington Continued

SiO, __ ____________

AljO, +FezO, ' ________

MgO*_

CaO ______________

Ignition loss'_ .- -

Class ______________

CaO/MgO ___________

467

46FZ 

40-144

_____ 2.08

_____ 3.16

_____ 19.28

_____ 30.50

_____ 44.98

_____ 100.00

_____ 0,4,94

_____ Dolomite

468

46FZ

40-105

1.37 

.80 

19.91 

31.61 

46.31

100.00 

0,2,97 

Dolomite

469

46FZ 

40-106

1.78 

1.05 

20.15 

30.87 

46.15

100.00 

0,3,97 

Dolomite

470 471

46F2 46FZ 

40-107 40-108

0.95 2.06 

1.66 1.38 

19.63 19.58 

31.56 31.17 

46.20 45.81

100.00 100.00 

0,2,97 0,4,96 

Dolomite Dolomite

472

46FZ 

40-109

1.48 

2.00 

19.59 

31.21 

45.72

100.00 

0.3.96 

Dolomite

473

46Fj

40-110

0.30 

.92 

20.05 

31.85 

46.88

100.00 

0.1,99 

Dolomite

474

46Fj 

40-111

1.24 

1.02 

19.43 

32.00 

46.31

100.00 

0,2.97 

Dolomite

475

46F2 

40-112

0.64 

1.28 

19.76 

31.74 

46.58

100.00 

0,1,98 

Dolomite

476

46Fj 

40-113

0.74 

1.00 

20.05 

31.61 

46.60

100.00 

0,1,98 

Dolomite

477

46Fj 

40-114

4 1.44

21.7 

30.8

[53.9] 

1.0,97 

Dolomite

478

46F2 

40-115

41.92

21.6 

30.6

[54.1] 

2,0,96 

Dolomite

Washington Continued

SiOi ______________

AljOj+FejO, 1 ______ _

MgO* ______________

CaO ______________

Ignition loss' _________

Total _________

Class ___ - __________

CaO/MgO ___________

479

46FZ 

40-116

_____ 4 1.80

_____ 21.2

_____ 30.5

_____ [53.5]

_____ 2,0,98

480

46F2 

40-96

2.10 

1.32 

19.96 

30.82 

45.80

100.00 

0.4,96

Dolomite

481

46F2 

40-97

2.64 

1.76 

19.71 

30.47 

45.42

100 .00 

0,5,95

Dolomite

482 483

46FZ 46FZ 

40-99 40-100

3.88 2.86 

2.74 1.72 

19.33 18.91 

29.69 31.26 

44.36 45.25

100.00 100.00 

0,7,92 0,5,95

Dolomite Dolomite

484

46FZ 

40-102

2.40 

1.68 

19.40 

31.07 

45.45

100.00 

0,4,95

Dolomite

485

46F2 

40-103

4.74 

1.93 

18.06 

31.11 

44.16

100.00 

2.6.92

Calcareous 

dolomite

486

46FZ 

40-104

2.76 

1.52 

19.17 

31.16 

45.39

100.00 

0,4,95

Dolomite

487

46F2 

40-117

4 3.42 

1.52 

21.11 

29.59 

44.36

100.00 

1.4.92

Dolomite

488

46FZ 

40-118

*4.74 

1.54 

19.80 

29.88 

44.04

100.00 

2.5.92

Dolomite

489

46F2 

40-119

4 4.42 

1.38 

21.47 

29.00 

43.73

100.00 

2,4,91

Dolomite

490

46F2 

40-120

4 3.48 

1.16 

21.03 

29.71 

44.62

100 .00 

2,3,93

Dolomite

Washington Continued

SiOj ______________

AljOj+FejO, 1 ________

MgO 1 ______________

CaO ______________

Total _________

Class ______________

CaO/MgO ___________

491

46F2 

40-121

_____ 4 2.36

_____ 1.22

_____ 21.10

_____ 30.23

_____ 45.09

_____ 100.00

_____ 0,4,94

_____ Dolomite

492

46F2 

40-122

4 1.90 

.98

22.20 

30.64 

44.28

100.00 

0,3,92

Dolomite

493

46F2

40-91

2.10 

1.14

19.59 

31.27 

45.90

100 .00 

0.3.96

Dolomite

494 495

46FZ 46F2 

40-92 40-93

1.94 0.76 

1.65 1.04

19.32 20.07 

31.42 31.51 

45.67 46.62

100.00 100.00 

0,3,96 0.1,98

Dolomite Dolomite

496

46F2 

40-94

0.84 

1.19

19.92 

31.56 

46.49

100.00 

0,1,98

Dolomite

497

46Fj 

40-95

0.93 

.85

19.87 

31.76 

46.59

100.00 

0,2,98

Dolomite

498

46FZ 

.40-123

0.68 

2.23

19.69 

31.31 

46.06

99.97 

0,1,97

Dolomite

499

46F2 

40-124

0.76 

1.85

19.56 

31.78 

46.05

100.00 

0.1.97

Dolomite

500

46FZ 

40-125

0.63 

1.54

19.80 

31.61 

46.42

100 .00 

0,1,98

Dolomite

501

46FZ 

40-126

0.25 

1.66

19.44 

32.20 

46.45

100.00 

0,1.98

Dolomite

502

46FZ 

40-127

0.46 

.92

20.30 

31.51 

46.81

100.00 

0,1,98

Dolomite
ANALYSES OF SAMPLES 145

Table 10 . Analyses of samples from Washington containing mote than 90 percent carbonate (Grou

Chemical analyses Continued

common-rock category Continued

W ashington C ontinued

SiO, ____ ______

AljOj + FejO, 1 . ___ _ ___ _

MgO* _________________

CaO __________________

Total _____________

Class _________________

CaO/MgO ______________

503

46F, 

40-128

______ _ _ 1.00

_______ _ 1.36

__________ 20.42

__________ 30.87

__________ 46.35

__________ 100.00

__________ 0.2.97

_________ Dolomite

504

46F, 

40-129

1.02 

1.08

20.00 

31.56 

46.34

100.00 

0.2.97

Dolomite

505

46Ft 

40-130

0.80 

1.00

20.09 

31.66 

46.45

100.00 

0.1.98

Dolomite

506

46F, 

40-131

0.82 

1.21

19.99 

31.46 

46.52

100.00 

0,1.98

Dolomite

507

46Ft 

40-132

1.38 

.83

20.28 

31.22 

46.29

100.00 

0,2,97

Dolomite

508

46F, 

40-133

1.56 

1.42

19.66 

31.32 

46.04

100.00 

0.3.97

Dolomite

509

46F, 

40-134

1.48 

1.10 

19.90 

31.12 

46.40

100.00 

0.3.97

Dolomite

510

46Ft 

40-135

0.92 

1.44

19.86 

31.46 

46.32

100.00 

0.2.97

Dolomite

511

46F, 

40-136

1.78 

.88

19.60 

31.56 

46.18

100.00 

0.3,97

Dolomite

512

46F, 

40-137

4.72 

2.28

16.38 

32.44 

43.73

99.55 

1.7.92

Calcareous 

dolomite

513

46F, 

40-138

1.52 

1.10

19.69 

31.51 

46.18

100.00 

0.3.97

Dolomite

Washington Continued

SiO, _________________

MgO* _________________

CaO ____ ____________

Ignition loss 1 _ ________

Total _ _________

Class _________________

CaO/MgO ______________

514

46F, 

40-146

__________ 0.56

__________ 1.16

__________ 21.93

__________ 29.96

__________ 46.39

___ . ______ 100.00

__________ 0.1.97

515

46Fi 

40-147

0.65 

1.40 

21.55 

29.63 

46.77

100 .00

0.1.98 

Dolomite

516

46F, 

40-148

3.06 

2.22 

20.70 

28.81 

45.21

100.00

0,5.94 

Dolomite

517

46Fi 

40-149

0.76 

1.68 

21.52 

29.44 

46.60

100.00

0.1.97 

Dolomite

518

46F, 

40-150

2.00 

1.34 

21.01 

29.54 

46.11

100.00

0.3,96 

Dolomite

519

46F, 

40-151

2.41 

1.30 

21.25 

29.05 

45.99

100.00

0.4,96 

Dolomite

520

46F2 

40-152

2.74 

1.42 

19.53 

30.82 

45.49

100.00

0.4.95 

Dolomite

521

46F, 

40-153

2.70 

1.70 

20.06 

30.18 

45.36

100.00

0,5,94 

Dolomite

522

46F, 

40-154

4.74 

1.96 

19.84 

29.25 

44.21

100.00

1.6,92 

Dolomite

523

46Fi 

40-155

4.14 

1.72 

19.68 

30.04 

44.42

100.00

1.5.93 

Dolomite

524

46Fj 

40-145

1.77 

2.10 

19.72 

30.75 

45.66

100.00

0.3,96 

Dolomite

Iron and alumina. *By difference, except for samples 477,478,479. 1 950°- 1,000°C; also called CO,. 4 Also reported as insoluble.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

443-446.

447-461.

Washington Continued

Okanogan County. Triassic. NE«SWi sec. 23, T. 35 N.. R. 26 E., about 

1.5 miles northwest of town of Riverside. Owners, Emmett, Omar, and 

R. E. Smith. Deposit 8. ( Bennett, 1944, p. 6-9, 11, 20, 21, pi. 3; 

Bennett, 1945, p. 11.) Deposit: Dolomite, light-gray, fine-grained, 

stratigraphic thickness 200-300 ft. Fresh sample from outcrop, fragments 

taken every 5 ft, usually for a length of 50 ft. Tonnage estimated. Index 

and geologic maps. Possible use: General uses of dolomite; refractories, 

crushed stone; for those analyses with more than 20 percent MgO, source 

of magnesia.

443. Sample 365. 445. Sample 367.

444. Sample 366. 446. Sample 368.

County, age, maps, and use as in samples 443-446. SWiSWi sec. 23, 

T. 35 N., R. 26 E., about 1.25 miles northwest of Riverside. Owners, 

Emmett and Omar Smith. Deposit 4. ( Bennett, 1944, p. 6-9, 11, 14- 

16, pi. 2; Bennett, 1945, p. j>, 6.) Deposit: Dolomite, light-gray to 

gray to brownish-gray; some impurities; stratigraphic thickness 450-500 ft. 

Fresh sample from outcrop, fragments taken every 5 ft usually for a 

length of 50 ft. Tonnage estimated.

468-483.

Washington C ontinued 

NEiNWi sec. 26. Owner, N. W. L. Brown.

468. "

469.

470.

471.

472.

473.

NW^NW

484. "

485.

486.

SEjNWi

Sample

51

52

53

54

55

60

\ sec. 26.

Sample

73

74

75

sec. 26.

474.

475.

476.

477.

478.

Owner,

487.

488.

489.

Owners,

Sample

493.

494.

495.

46

47

48

496.

497.

498.

Sample

61

62

63

64

65

R. E. Smith.

Sample

79

80

81

479.

480.

481.

482.

483.

490.

491.

492.

Sample

66

67

68

70

71

Sample

82

83

84

Emmett and Omar Smith.

Sample

49

50

56

499.

500.

501.

Sample

57

58

59

502-513.

462-467.

468-501.

County, age, maps, and use as in samples 443-446. SW;SW* sec. 25, 

T. 35 N., R. 26 E., about 0.5 mile southwest of Riverside. Owner, 

H. F. Hubbard. Deposit 1. (Bennett, 1944, p. 6-9, 11, 12, pi. 1; 

Bennett, 1945, p. 4.) Deposit: Dolomite, light-gray, dense; beds 

range up to 6 ft or more in thickness; maximum stratigraphic thickness 

exposed about 550 ft. Fresh sample from outcrop, fragments taken every 

5 ft, usually for a length of 50 ft. Tonnage estimated.

Sample Sample Sample

462. 39 464. 41 466. 43

463. 40 465. 42 467. 44

County, age, maps, and use as in samples 443-446. Sec. 26, T. 35 N., 

R. 26 E., about 1.25 miles northwest of Riverside. Deposit 4. ( Bennett, 

1944, p. 6-9, 11, 14-16, pi. 2; Bennett, 1945, p. ji.) Deposit: Dolomite, light-gray to gray to brownish-gray; some impurities; stratigraphic 

thickness 450-500 ft. Fresh sample from outctop, fragments taken every 

5 ft, usually for a length of 50 ft. Tonnage estimated.

484-492.

493-501.

County, age, maps, and use as in samples 443-446. NW4SE« sec. 26, 

T. 35 N., R. 26 E., about 1.5 miles northwest of Riverside. Owner, 

N.W.L. Brown. Deposit 3. (Bennett, 1944, p.6-9,11,13, pi. 1; Bennett, 

1945, p.4.) Deposit: Stratigraphic thickness about 700 ft. Upper 300 ft, 

dolomite, gray, fine-grained, beds up to 4 ft in thickness; underlying 

400 ft, dolomite, light-gray to white, dominantly fine grained, bedding 

not as distinct as upper part; some impurities. Fresh sample from outcrop, 

fragments taken every 5 ft, usually for a length of 50 ft. Tonnage estimated.

Sample

510. 35

511. 36

512. 37

513. 38

514- 524. County, age, maps, and use as in samples 443-446. NWJNWi sec. 36, 

T. 35 N., R. 26 E., about 0.5 mile southwest of Riverside, State land. 

Deposit 1. ( Bennett, 1944, p. 6-9, 11, 12, pi. 1; Bennett, 1945, p. 

4.) Deposit: Dolomite, light-gray, dense; beds range up to 6 ft or more 

in thickness; maximum stratigraphic thickness exposed about 550 ft. 

Fresh sample from outcrop, fragments taken every 5 ft, usually for a 

length of 50 ft. Tonnage estimated. 

Sample

518. 21 522.

519. 22 523.

520. 23 524.

521. 24
146 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Ft),common-rock category Continued

Chemical analyses Continued

SiOj

Al-0, ________ .

Fe,0, .

MgQ. .

CaO ________ .

Ignition loss _ _.

CaO/MgO _____ .

SiOj _______ .

R.O, .

MgQ. .

Caa __.

P_0« .

Ignition loss _____

Total ______

CaO/Mga ______

SiOj _______ .

A1.O.

Fe,0, .

MgQ. .

CaO_____ __ __.

Na_0 ____.

KtO _________ .

P_0g .

SO, .

Total ___ .

Class _______ .

CaO/MgO _____ .

525

46F-40-160

. __ 1.3

___ <.05

. __ .12

. __ 1.0

___ 52.8

. __ 43.8

. __ 99.1

. __ 1.2.96

___ Calcite

538

46Fj40-230

2.98

.79

1.28

52.50

.075

*42.33

[99.96]

2,2,95

551

46Fj25-l

.__ 4.20

___ 1.80

'.76

7 .71

T 51.54

*41.23

___ [100.24]

0,7.93

.__ Calcite

526 527 528

Washington Continued

529 530 531 532 533 534 535

46F-40-220 46F-40-221 46F-40-222 46F-40-223 46F-40-224 46F»40-225 46F»40-226 46F-40-227 46Fj40-228 46F.24-20

4.43

} h.oe

.77 

52.06 

.105 

*41.77

'[ 100 .20 ] 

3,3,94

Calcite

539

46Fj40-231

2.83 

.68 

.73 

53.10 

.070 

*42.31

[99.72] 

2 2 96

Calcite

552

46F.25-24

2.30

1 '*

Trace 

53.62

43.17

[100.03] 

1.4.96 

Calcite

2.09 

'.70

.71 

53.55 

.076 

*42.60

[99.73] 

1,2,96

Calcite

540

46F-40-232

3.89 

1.56 

.92 

51.53 

.116 

*41.25

[99.27] 

1,5,93

Calcite

553

46F.25-18

6.36 

h.38

.73 

50.06

41.54

[100.07] 

4.5.91 

Calcite

2.64 

'.84

.85 

52.95 

.064 

*42.33

[99.67] 

1,2,95

Calcite

541

46F-40-233

3.40 

.74 

.82 

52.43 

.064 

*41.98

[99.43] 

2,2,95

Calcite

554

46F,25-20

5.53 

( 2.19 

I .99 

.80 

49.08 

.12 

.51

.23

40.09

[99.54] 

1,9.89 

Calcite

5.45 5.66 3.97

1 .ei '.99 '.68

.60 1.07 1.13 

51.76 50.56 52.05 

.094 .118 .082 

*41.11 *41.10 *41.54

[99.62] [99.50] [99.45] 

4.2.93 4.3,92 3,2,94

Calcite Calcite Calcite

Washington Continued

542 543 544

4.26 

'.79

1.04 

51.98 

.094 

*41.59

[99.75] 

3,2,94

Calcite

545

2.27 

'.73

.78 

53.03 

.086 

*42.60

[99.50] 

1,2,96

Calcite

546

3.59 

'.55

1.13 

52.69 

.052 

*41.98

[99.99] 

3,2.95

Calcite

547

46F-40-234 46F-40-235 46F-40-236 46F-40-237 46F,40-238 46F-40-239

3.76 1.56 1.33 

.72 .23 .29 

1.25 .14 .19 

51.83 55.49 55.39 

.085 .006 .006 

*41.67 *42.34 *42.45

[99.32] [99.77] [99.66] 

3,2.94 1,1,96 1,1,96

Calcite Calcite Calcite

Washington Continued

555 556 557

46F-25-15 46F-25-16 46F225-17

5.70 5.11 2.89 

i '2.84 1 2.50 1 1.51

.84 1.27 .87 

49.98 50.06 52.46

.053 .049 .038

*40.42 *40.86 *42.05

[99.83] [99.85] [99.82] 

1.8.90 1.7,91 0.4,94 

Calcite Calcite Calcite

7.38 

.09 

.42 

51.54 

.016 

*40.46

4[99.91] 

7.0.92

Calcite

558

46F225-2

1.67 

 .47

7 .16 

7 54. 55

.41

*43.00

100.26 

1,2,98 

Calcite

0.71 

.19 

.24 

55.56 

.009 

*43.34

4[100.05] 

0,1,98

Calcite

559

46Ft25-3

2.24 

( .76 

1 «.68 

.30 

53.52

42.21

99.71 

0,4,95 

Calcite

1.35

.28 

.40 

54.68 

.012 

*43.15

4[99.87] 

1.1.98

Calcite

560

46Fj25-ll

Very low

Very low 

T 54

«43

[97] 

0.0.97 

Calcite

5.02 

3.13

14.93 

32.07

43.06

98.21 

0,10,88

Calcareous 

dolomite

548

536

46F-24-21

1.76 

1.36

1.94 

52.42

41.86

99.34 

0,3,94

Calcite

549

537

46F-40-229

5.10 

11.43

1.22 

50.55 

.114 

*40.97

[99.38] 

3.4.92

Calcite

550

46F-40-240 46F-40-241 46F-40-165

4.45 

.18 

.18 

53.40 

.018 

*41.66

4[99.89] 

4,1,95

Calcite

561

46F226-89

0.26 

1 '.26

21.30 

31.41

.003

*46.37

[99.60] 

0,0.97 

Dolomite

0.30 

.18 

.35 

55.35 

.014 

*43.46

4 [99.65] 

0.1.99

Calcite

562

46F226-90

3. 45 

'2.93

19.41 

29.63

.008

2 44.41

[99.84] 

0.6.92 

Dolomite

3.64 

2.18 

2.83 

49.36

39.28

97.29 

0,6.87

Magnesian 

calcite

563

46F.26-92

3.72 

! 2.27

.87 

51.19

.011

*41.51

[99.57] 

0.6,93 

Calcite

R|Oj. 4 A composite of samples 545- 

^Sample dried at 110'-112,°C, ignition loss 1.000"-1,100«C. contained N_tO = 210ppm. K»O = 

J N_tO = 270ppm. K»0 = 700ppm, TiO, = 310ppm. S = 390ppm. TK).=<30ppm. S = 22ppm.

'iron oxides.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LijO.BeO.BiOj.ScjOj.CoO.ZnO.GajO,

549 ' Includes FeO.

750ppm, 'Calculated from reported MgCO, and(or) CaCO,.

'COj. calculated from reported MgCOj and(or)CaCO|.

GeO,,AstO,,YtO,,NbIOs ,MoO|,Ru,Rh,Pd.CdO,I_%Ot ,SnO2,Sb|O,,

sample 561 , PbO = 0 . 0035 percent]

Na.O __ __

KtO_ _____

TiO, ____

V.OS 

Cr-0, 

MnO _____

NiO _____

CuO _____

SrO _____

ZrO, ___

Ag,0 _____

Na»0 

Kfa _

TiO, 

V-0, 

Cr,0, 

MnO _____

526

0.05

.038

.0007

.15

.0043

.0098

.0042

.00099

542

0.053

.027

.00077

.02

527

0.014

.00054

.017

.0012

.10

543

0.05

.0052

.0012

.043

528

0.05

.018

.0005

.034

.0012

.11

544

0.05

.0064

.0013

.053

529

0.017

.0005

.019

.0015

.11

545

0.002

.00064

.028

530

0.021

.0008

.024

.0035

.10

546

0.0056

.0011

.036

531

0.05

.014

.00067

.019

.0014

.17

547

0.01

.0012

.048

532

0.05

.023

.00064

.015

.00088

.14

548

0.002

.0007

.037

533

0.043

.00058

.016

.00077

.12

549

0.002

.0009

.042

534

0.015

.00067

.029

.002

.14

555

0.32

.90

.063

.0092

.0014

.026

537

0.05

.046

.0013

.047

.002

.16

556

0.32

1.05

.072

.0064

.0015

.021

538

0.05

.017

.00058

.016

.0015

.13

557

0.14

.048

.0059

.0009

.01

539

0.05

.018

.00074

.018

.0012

.12

561

0.0036

.038

540

0.05

.035

.0013

.05

.0013

.13

562

0.05

.56

.044

.0014

.06

541

0.023

.00067

.019

.0011

.11

563

0.052

.044

.003

.0005

.06
ANALYSES OP SAMPLES 147

Specgochemical analyses Continued

NiO _____

CuO ___

SrO _____

ZrOj ___

Ag,0 

542

0.0014 

.14

543

0.0014 

.012

544

0.0028 

.013

.0002

545

0.0019 

.0063

.0004

546

0.0019 

.0091

547

0.00099 

.0084

548

0.00066 

.0048

549

0.0014 

.007

555

0.001

.0045 

.081

.002

556

0.001

.0057 

.096

.002

557

0.001

.0052 

.14

.002

561

0.0015

.0031 

.0054

562

0.001

.0016 

.0046

.002

.0002

569

0.001

.0014 

.018

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

W ashington Continued

525. Okanogan County. Pleistocene. Sec. 3, T. 35 N., R. 26 E., about 4 

miles northwest of town of Riverside, from shore of Booher Lake. 

( Wilson and Skinner. 1937, p. 6, 34, 76, 152.) Marl, gray, unconsolidated. Index map. Physical tests; general data for whiting and putties. 

Possible uss: Putty, whiting.

526 - 530. Okanogan County. SEi sec. 1, T. 35 N., R. 25 E., southeast side of Dunn 

Mountain. Scholz property. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. (Mills, 1962, p. 12, 13, 232- 

234. 245. 254, 264, pi. 1.) Limestone, white to light-gray, mediumgrained. Chip sample from three outcrops. Tonnage estimated. Index 

and geologic maps. Possible use: Portland cement.

526. Sample O-3 lepresents 38 ft.

527. Sample O-51 represents 48 ft. 

528. Sample O-52 represents 43 ft.

529.

530.

Sample O-62 represents 32 ft. 

Sample O-63 represents 35 ft.

531-534. Okanogan County. Sec. 12, T. 35 N., R. 25 E., Dunn Mountain area. 

McCain property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962. p. 12. 13, 233, 235. 

246. 255, 256, 264, pi. 1.) Limestone, white, coarse-grained, bedded. 

Chip sample from outcrop. Index and geologic map*. Possible use: 

Portland cement.

531. SWiNEi sec. 12. Sample O-65 represents 37 ft.

532. SEiNEi sec. 12. Sample O-59 represents 34 ft.

533. SEiNEi sec. 12. Sample O-60 represents 32 ft.

534. SEiNEi sec. 12. Sample O-61 represents 42 ft.

535. ^Okanogan County. Sec. 25, T. 35 N., R. 25 E., west of Riverside. 

Analyst, A. A. Hammer. ( Shedd, 1913, p. 166. 245, pi. 21.) 

[Dolomite] limestone, white, flinty, crystalline. Index map.

536. Okanogan County. [T. 35 N., R. 25 E.], near Riverside, Scotch Creek 

basin. Analyst, A. A. Hammer. ( Shedd, 1913, p. 166. 245, pi. 21.) 

Limestone, white, crystalline. Index map. Possible use: Portland 

cement [implied].

537. Okanogan County. SW| SW| sec. 6, T. 35 N., R. 26 E., Dunn Mountain 

area. Scholz property. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample O-64. ( Mills, 1962, 

p. 12, 13, 233, 234, 246. 255, 264. pi. 1.) Limestone, white, 

medium-grained, bedded. Chip sample from outcrop represents 72 ft. 

Index and geologic maps. Possible use: Portland cement.

538 - 542. Okanogan County. Sec. 7, T. 35 N., R. 26 E., Dunn Mountain area. 

McCain property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 233-235, 

236, 246, 256, 264, pi. 1.) Chip sample from outcrop. Tonnage 

estimated. Index and geologic maps. Possible use: Portland cement.

538-541. NWiSWi sec. 7. Limestone, white, coarse-grained, bedded.

538. Sample O-66. 540. Sample O-68.

5a9. Sample O-67. 541. Sample O-69.

542. SWiswi sec. 7. Sample O-58. Limestone, dark-gray, fineto medium-grained, siliceous; represents 43 ft.

543, 544. Okanogan County. T. 38 N., R. 30 E., about 4.5 miles north of town of 

Wauconda. Jones property. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 220, 

221, 245, 254, 264, pi. 1.) Limestone, white, coarse-grained. Chip 

sample from outcrop. Index and geologic maps.

543. SWiNWi sec. 13. Sample O-6. Limestone, sample represents

10 ft, entire thickness.of bed. Possible use: None, deposit small.

544. NEi sec. 14. Sample O-7. Limestone, poorly bedded; represents 

about 57 ft.

Washington Continued

545- 549. Okanogan County. NEi NWi sec. 25. T. 38 N., R. 30 E., about 4 miles 

north of Wauconda. Analyst, under supervision of Mark Adams; spectjochemical analyst. C. E. Harvey. ( Mills, 1962, p. 12, 13, 218-220. 

245. 254. 264, pi. 1.) General: Limestone, white, medium-grained, 

well-bedded; weathers gray; contains little quartz; deposit about 150 ft 

thick. Chip sample from outcrop. Tonnage estimated. Index and geologic maps. Possible use: Portland cement, mineral filler, builders' lime.

545. Sample O-8 represents 38 ft.

546. Sample O-9 represents 28 ft.

547. Sample O-10 represents 70 ft.

548. Sample O-ll represents 40 ft.

549. Sample O-12, 40 ft in length.

550. Okanogan County. T. 38 N., R. 30 E., north of Wauconda. Analyst,

A. A. Hammer. (Shedd, 1913. p. 169, 170. 244; Mills. 1962, p. 218.) 

Limestone, white, crystalline. Possible use: Portland cement.

551. Pacific County. Eocene. [T. 9 N., R. 11 W.], 6 miles east of town of

Dwaco, on Bear River. Lindsey claim. Analyst, S. V. Peppel. ( Darton, 

1909, p. 27.) Limestone, fossiliferous.

552-557. Pacific County. Oligocene. SEi SEi sec. 20, T. 10 N., R. 10 W. Bear 

River deposit. Limestone, bluish-gray to gray; weathers light brown or 

buff; part dense vuggy algal material and part coquina. Tonnage 

estimated. Index and geologic maps, measured section. Former use: 

Agricultural, lime.

552, 553. Analyst, E. W. Lay ell. ( Danner, 1966, p. 82.431-433,434.)

554. (Danner, 1966, p.82,431-433,434.) Sample taken across 10ft. 

555 - 557. Analyst, under supervision of Mark Adams; spectrochemical

analyst, C. E. Harvey. ( Danner, 1966, p. 16. 19. 82,

431-434, 447, 456.)

555. Sample Pf 2-1. Chip sample taken across 90 ft.

556. Sample Pf 2-2. Chip sample taken across 90 ft.

557. Sample Pf 2-3. Chip sample taken across 160 ft.

558, 559. Pacific County. Oligocene. SWi SW| sec. 21, T. ION., R. 10 W., 

northeast of Ilwaco. Willapa Pulp and Paper Mills quarry. SEi SEi 

sec. 20, T. 10 N., R. 10 W., Bear River deposit (Danner, 1966). 

( Hodge, 1938d, p. 13, IB, 20, 22-24; Danner, 1966, p. 82, 431-433. 

434.) Limestone, light-tan, part crystalline, part massive; weathers 

bluish. Overburden averages 5 ft. Tonnage estimated. Index and geologic maps, columnar section, geologic section, measured section. 

Former use: Fertilizer, lime. Possible use: Flux.

559. USED sample 221A.

560. Pacific County. Oligocene. Probably NW corner sec. 27, SW corner 

sec. 22, T. ION., R. 10 W. Bear River deposit. (Glover, 1936, 

p. 55.) Deposit: Limestone, interbedded with shales. Former use: 

Fertilizer, lime.

561. Pend Oreille County. Precambrian, Priest River Group. NEi sec. 28, 

T. 35 N., R. 43 E., 1.5 miles north of Parker Lake. Hauck property. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample PO-27. ( Mills, 1962, p. 12, 13. 60, 246. 

257, 264, pi. 1.) Dolomite, light-gray, medium- to coarse-grained, 

friable. Chip sample from outcrop. Index and geologic map.

562, 563. Pend Oreille County. Middle Cambrian, lower unit of Metaline Limestone. 

SW*NEi sec. 31, T. 38 N., R. 43 E., 1 mile north of town of lone. 

lone-quarry, abandoned. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Samples PO-5, PO-8. (Mills, 

1962, p. 12, 13, 54-J58. 246, 256, 264, pis. 1, 2.) Limestone, darkgray, fine-grained, slightly dolomitic and argillaceous; contains brown 

streaks and patches; weathered. Chip sample from outcrop. Index and 

geologic maps. Former use: Natural hydraulic cement, flux. Possible 

use: None, rock impure.
148 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10.--Analyses of samples from Washington containing more than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

SiOj __ _____

MgO ________

CaO __ -

D C\

Total 

Class __ _____

CaO/MgO ____

SiO, __

R*o, ________

MgO

CaO

PjO, __ __

Ignition loss

Total _

Class ________

CaO/MgO ____

SiO, _______

R»o, _______

MgO

CaO

P*0, ______

Ignition loss

Total __

Class ________

CaO/MgO ___

Insoluble* ___ _

FeO 2 _______

MgO 1 _ _ _ __

CaO 2 _______

C0 2 * ________

Total ___

564

46F, 

26-93

In QQ

1

__o

. ___ *1.32

. ___ *49.85

. ___ 3 40.60

.____ [100.573

._ __ (5,4)91

. __ _ Calcite

577

46F, 

26-106

____ 1.42

____ .76

____ .46

____ 54.58

____ .005

____ *42.88

__ __ [100.10]

____ 0,2,97

____ Calcite

590

46F, 

26-119

___ 1.28

___ 1.58

___ 53.84

___ 43.12

___ [99.82]

.____ 1,0,97

___ Calcite

603

46F, 

26-203

__- 2.67

22

. ___ 11.72

. ___ 40.24

. ___ .01

. ___ 44.52

. ___ 99.38

565

46F, 

26-94

"6.20

QO

*1.08

*51.31

341.46

[ 100.97]

(5,2)94

Calcite

578

46F, 

26-107

0.76

.39

.48

54.62

.003

*43.28

[99.53]

0,1,98

Calcite

591

46F, 

26-120

' 3.48

s.19

4.38

48.07

42.98

[99.10]

3,1,95

Magnesian

calcite

604

46F, 

26-202

2.58

.75

19.59

30.73

.01

46.00

99.66

566

46F, 

26-95

Ifi QQ

*1.33

*50.27

3 40.91

[100.47]

(5,3>92

Calcite

579

46F, 

26-108

0.89

.80

.48

54.58

.005

*42.99

[99.74]

0,2.97

Calcite

592

46F, 

26-121

0.16

.15

.29

55.34

.004

4 43.72

[99.66]

0,0,99

Calcite

605

46F, 

26-174

0.51

.10

.16

55.22

43.57

"99.56

567

46F, 

26-96

*4.67

QC

».94

251.83

3 41.70

[99.99]

(3,2)94

Calcite

580

46F2 

26-109

1.44

.89

.72

53.75

.004

*42.82

[99.62]

Calcite

593

46F, 

26-122

0.07

.18

.35

55.49

*43.75

[99.84]

0,0,99

606

46F, 

26-191

1.20

.13

.19

44.98

53.44

"99.94

W ashington Continued

568 569 570

46F, 46F, 46F, 

26-97 26-98 26-99

*5.79 ^.SS 5.34

*.69 *.93 3.03

*51.31 *49.87 47.53

___ _____ .009

3 41.03 340.16 *40.68

[99.76] [99.67;] [99.45]

(4,3)93 (6,3)91 1,8,90

_ Magnesian Calcite Calcite *" .

calcite

Washington Continued

581 582 583

46F, 46F» 46Pt 

26-110 26-111 26-112

0.65 0.43 1.10

.32 .39 .62

.36 .57 .48

54.99 54.76 54.30

.003 .003 .004

*43.29 4 43.53 *43.06

[99.61] [99.68] [99.56]

0,1,98 0.1,99 0,2,97

Calcite Calcite Calcite

Washington Continued

594 595 596

46F, 46F, 46F, 

26-123 26-124 26-125

0.23 0.86 0.11

.36 .26 .36

54.85 55.06 55.20

*43.76 *43.32 *43.70

[99.36] [99.64] [99.70]

0,1.99 1,0,98 0,0,99

W ashington C ontinued

607 608 609

46F, 46F, 46F, 

26-205 26-152 26-166

3.95 0.11 0.27

.13 .10 .10

1.52 .33 .11

52.00 55.43 55.51

42.56 43.92 43.75

"lQO.16 *99.89 "99.74

571

46F, 

26-100

0.57

.95

.42

54.62

.032

*42.90

[99.49]

0,1,97

Calcite

584

46F, 

26-113

1.15

.41

.43

54.58

.004

*43.25

[99.82]

0,1,98

Calcite

597

46F, 

26-126

0.16

.18

.26

55.27

.004

*43.73

[99.60]

0.0,99

610

46F, 

26-145

0.06

.07

.23

55.75

44.06

"100.17

572

46F, 

26-101

2.24

.21

54.33

42.76

[99.54]

2,0,97

Calcite

585

46F, 

26-114

0.91

.56

.47

54.37

.004

*43.36

[99.67]

0,2,98

Calcite

598

46F, 

26-127

0.72

.25

.56

54.73

.014

*43.53

[99.80]

0,1.99

Calcite

611

46F, 

26-161

0.21

.05

.22

55.61

43.92

'100.01

573

46F, 

26-102

*0.38

*53.89

3 42.73

[97.00]

0,0,97

Calcite

586

46F2 

26-115

0.76

s.08

.50

54.48

43.29

[99.11]

1,0,98

Calcite

599

46F, 

26-128

0.41

.12

.46

55.13

.005

*43.66

[99.78]

0,0,99

Calcite

612

46F, 

26-153

0.12

.12

.21

45.73

54.03

"100.21

574

46F, 

26-103

*0.19

*53.61

S 42.30

[96.10]

0,0,96

Calcite

587

46F, 

26-116

0.51

5 Trace

.77

54.63

43.64

[99.55]

1,0,99

Calcite

600

46F, 

26-129

0.44

'.46

3.36

50.18

43.65

[98.09]

0,1.97

Magnesian

calcite

613

46F, 

26-163

0.22

.10

.40

55.44

.01

44.02

100.19

575

46F, 

26-104

*0.33

*54.17

3 42.90

[97.40]

0,0,97

Calcite

588

46F, 

26-117

0.54

.54

.96

54.00

.012

4 43.54

[99.59]

0,1,98

Calcite

601

46F, 

26-27

*55.00

3 43.18

[98.18]

0,0,98

Calcite

614

46F, 

26-155

0.14

.08

.70

55.22

44.15

"100.29

576

46F, 

26-105

*0.43

*52.77

3 41.80

[95.00]

0,0,95

Calcite

589

46F, 

26-118

0.77

.35

.91

54.33

.004

*43.29

[99.65]

0,1,98

Calcite

602

46F, 

26-159

*0.18

T .29

*20.05

*31.42

S 46.74

'98.68

(0,0)98

Dolomite

615

46F, 

26-206

4.46

.10

3.60

49.31

.01

42.72

100.20

Class___________ (3,0)96 (3.0)96 (1.0)99 (1,0)99 (4,0)96 (0,0)100 (0.0)99 (0.0)100 (0.0)100 (0.0)100 (0,0)100 (0.0)100 (4,0)96

CaO/MgO. Calcareous 

dolomite Dolomite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Magnesian calcite

See following page for footnotes.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: LijO,BeO,B1OJ ,NaiO,K1O,SciOj,VtO5,CrjOj,NiO,CoO,ZnO,Ga,O1 ,GeOj,AsiOj,YjOj,ZrO, > NbtO5 ,MoO|, 

AaO.Ru,Rh,Pd,CdO,Ii^Oj,SnO,.Sb,Oj,BaO,TeOj.CsiO,La,Oj,CeOj.P^

i; sample 570. Na|O = 0.05 percent, ^0=0.90 percent. CrIO> = 0.0021 percent, NiO = 0.001 percent; sample 579^^0=0 .00072 percent]

581 582

0.0034

.019

.00088

.011

570

TiO, __________________________ 0.072

MnQ ___________________________ .11

CuO ___________________________ .0015

SrO ___________________________ .014

571 578

0.0056

.01

.0005

.0084

579

0.014

.019

.0084

.011

580

0.02

.013

.00099

.012

583 584 585

0.0044

.036

.0010

.011

0.0076 0.0064 0.011

.01 .01 .019

.00082 .00066 .00088

.011 .009 .018
ANALYSES OF SAMPLES 149

Specaochemical analyses Continued

TiH.

MnQ_ _______ __ _ __ .

CuO ___________________ _.

SrO _________ __________ .

588

. ____________ 0.013

. ____________ .019

. ____________ .00052

. ___________ .007

589

0.0088

.016

.00082

.010

592

0.002

.014

.0005

.009

593

0.002

.019

.0005

.0086

594

0.019

.00072

.0082

595

0.015

.0006

.008

596

0.0056

.017

.00071

.0068

597

0.015

.00088

.0082

598

0.0056

.017

.0005

.0084

599

0.0072

.017

.0005

.009

Footnotes of analyses on preceding page:

'insoluble.

* Calculated from reported FeCOj, MgCOj, CaCOj, and (or) MnCOg. 

S COZ , calculated from reported FeCOj, MgCOj, CaCOj, and (or) MnCOz . 

4 Sample dried at liy-ll^C, ignition loss, 1,000"-1,100"C.

*Insoluble( acid) 110°C.

T FeO, calculated from reported FeCOj.

*MnCOj, trace. 

9 MnCOs, none.

DESCRIPTIVE NOTES

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

570.

571.

572.

564-569. Pend Oreille County. Middle Cambrian, lower unit of Metaline Limestone. 

SWi NEi sec. 31, T. 38 N., R. 43 E., 1 mile north of town of lone, 

lone quarry. Analyst [possibly] J. E. Hayes. (Mills, 1962, p. 54-57, 

58, pis. 1, 2.) Limestone, gray, argillaceous, dolomitic; finely disseminated talc in upper part of quarry. Index and geologic maps. Former use: 586,587 

Natural hydraulic cement, flux. Possible use: None, rock impure.

Pend Oreille County. Probably lower unit of Metaline Limestone. SEi NWi 

sec. 31, T. 38 N., R. 43 E., 1.5 miles from lone. Green quarry. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. Sample PO-4. ( Mills, 1962, p. 12, 13, 55, 58, 59, 

246, 256, 264, pis. 1, 2.) Limestone, gray, argillaceous. Grab sample. 

Index and geologic maps. Possible use: None, rock impure.

Pend Oreille County. Lower unit of Metaline Limestone. SEi sec. 11, 

T. 39 N., R. 43 E., 3.7 miles north of town of Metaline Falls. Three 588, 589 

Mile Creek area. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample PO-25. (Mills, 1962, p. 12, 

13, 41, 42, 246, 257. 264, pis. 1, 2.) Limestone, gray, fine-grained, 

slightly argillaceous. Chip sample from outcrop represents 52 ft. Tonnage estimated. Index and geologic maps. Possible use: Chemical, 

metallurgical, calcium carbide manufacture, sugar industry, pulp and 

paper industry, finishing lime, filler, ceramic whiting.

Pend Oreille County. Lower unit of Metaline Limestone. SWisWi 590,591, 

T. 39 N., R. 43 E., about 2 miles northeast of Metaline Falls. Collector, W. A. G. Bennett. Sample WGB-8. ( Mills, 1962, p. 41, pis. 1, 

2.) Limestone, gray. Sample represents 75 ft. Tonnage estimated. 

Index and geologic maps. 

573 - 580. Pend Oreille County. Lower unit of Metaline Limestone. Sec. 6, T. 40 N.,

R. 44 E., 15 miles north of Metaline Falls. Getchell-Dehuff property. 592 - 599. 

Tonnage estimated. Index and geologic maps. Possible use: Chemical, 

metallurgical, finishing lime, mineral filler, pulp and paper industry. 

573-576. SWi sec. 6. (Mills, 1962, p. 44-46. pis. 1. 2.) Limestone, light-greenisb-gray to dark-gray and black; dense 

to medium grained or finely crystalline. Weighted core 

analysis.

573. Diamond-drill hole 1. Core sample 58.1 ft.

574. Diamond-drill hole 2. Core sample 49.1 ft.

575. Diamond-drill hole 3. Core sample 118.2 ft.

576. Diamond-drill hole 4. Core sample 103.3 ft. 

577 - 580. W£ sec. 6. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962. p. 12, 

13. 44-£7, 246, 256. 264, pis. 1.2 .) General: Limestone, 

light-gray to gray, fine- to medium-grained, massive. 

Chip samples from outcrop represent width of 650 ft.

577. Sample PO-13.

578. Sample-PO-14.

579. Sample PO-15.

580. Sample PO-16. 601 

581-584. Pend Oreille County. Lower unit of Metatine Limestone. SEi NEi sec. 20, 

T. 40 N., R. 44 E., Slate Creek area. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. (Mills, 1962, 602-615 

p. 12. 13, 42-44, 246. 256, 264, pis. 1, 2.) Index and geologic maps. 

581.582. Samples PO-9, PO-10. Limestone, light-gray, fine-grained, 

thin-bedded; contains up to 0.5 percent fine-grained muscovite. Chip samples from outcrop represent 150 ft. Possible 

use: None, small tonnage.

583, 584. Samples PO-11, PO-12. Limestone, light-gray to gray, fineto medium-grained, massive. Chip samples from outcrop 

represent 230 ft. Possible use: Calcium carbide manufacture, chemical, metallurgical, finishing lime, filler, 

ceramic whiting, pulp and paper industry.

Pend Oreille County. Probably upper unit of Metaline Limestone. NEi NEi 

sec. 1, T. 37N., R. 42 E., westoflone. Thackston property. Analyst, 

under supervision of Mark Adams; spcctrochemical analyst, C. E. Harvey. 

Sample PO-3. ( Mills, 1962, p. 12, 13. 54, 55. 59, 246, 256, 264,

585.

Washington Continued

pis. 1, 2.) Limestone, gray, fine-grained, bedded: weathers gray. 

Overburden less than 2 ft thick. Chip sample from outcrop represents 

20 ft. Index and geologic maps. Possible use: Mineral filler, cement 

industries, finishing lime, pulp and paper industry, ceramic whiting.

Pend Oreille County. Upper unit of Metaline Limestone. Ei sec. 4, 

T. 40 N., R. 43 E., 12 miles north of town of Metaline. Collector, 

W. A. G. Bennett. Samples WGB-5, WGB-6. ( Mills, 1962, p. 51-J53, 

pis. 1, 2.) General: Limestone, white to light-gray, medium- to 

coarse-grained, massive; contains very few thin muscovite schist layers. 

Sample: Limestone ( marble),white with shades of gray, crystalline. 

Tonnage estimated. Index and geologic maps. Possible use: Chemical, 

metallurgical, finishing lime, calcium carbide manufacture, mineral 

filler, sugar industry, pulp and paper industry.

Pend Oreille County. Upper unit of Metaline Limestone. SWi sec. 13, 

T. 40 N., R. 43 E., 12 miles north of Metaline Falls. Black Heart 

claims. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Samples PO-1, PO-2. (Mills, 1962, p. 12, 13, 

45, 47, 48, 246. 256, 264, pis. 1, 2.) Limestone, white to light-gray, 

fine to very fine grained. Chip samples from outcrop. Tonnage estimated. Index and geologic maps. Possible use: Cement, finishing lime, 

mineral filler, pulp and paper industry.

Pend Oreille County. Upper unit of Metaline Limestone. NEiNEi sec. 15 

and NWi NWi sec. 14, T. 40 N., R. 43 E., about 8 miles north of 

Metaline Falls. Collector, W. A. G. Bennett. ( Mills, 1962, p. 53, 

54, pis. 1, 2.) Limestone. Index and geologic maps.

590. Sample WGB-10. Possible use: Cement.

591. Sample WGB-13. Possible use: None, rock impure. 

Pend Oreille County. Upper unit of Metaline Limestone. SWi NEi sec. 22, 

T. 40 N., R. 43 E., 9.5 miles north of Metaline Falls. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

(Mills, 1962, p. 12, 13, 32, 49-51, 246, 257, 264, pis. 1, 2.) Limestone, light-gray to gray, fine-grained, well-bedded. Chip sample from 

outcrop. Tonnage estimated. Index and geologic maps. Possible use: 

Glass, chemical, metallurgical, calcium carbide manufacture, sugar 

industry, pulp and paper industry.

Sample Sample

592. PO-17 596. PO-21

593. PO-18 597. PO-22

594. PO-19 598. PO-23

595. PO-20 599. PO-24 

600. Pend Oreille County. Upper unit of Metaline Limestone. NEi sec. 27,

T. 40 N., R. 43 E., about 8.5 miles north of Metaline Falls. Collector, 

W. A. G. Bennett. Sample WGB-12. (Mills, 1962, p. 48, 49. pis. 1, 

2.) Limestone, gray, very fine grained; some dolomitic masses. Sample 

represents stratigraphic thickness of about 300 ft. Index and geologic 

maps. Possible use: None, rock impure.

Pend Oreille County. Metaline Limestone ( Mills, 1962). T. 38 N., 

R. 43 E., lone. ( Hodge, 1944, p. Jj>, pi. 4.) Limestone. Tonnage 

estimated. Index map.

Pend Oreille County. Metaline Limestone. Between sees. 15 and 16, 

T. 39 N., R. 43 E., about 1 mile north of Metaline Falls. Pend Oreille 

Mines and Metals Co., Pend Oreille mine. Analyst, E. T. Erickson. 

Drill hole 234. ( Park and Cannon, 1943, p. 2, 43, 72, 73. pis. 1, 21, 

22.) Mineralogy. Graphic presentation of analysis. Index and geologic 

maps, geologic sections. [For other analyses from same drill hole, see 

samples 616-620, this group; samples 271-273. group FL]

Depth (ft)

602. 710 _ [Dolomite.]

603. 685 __ [Calcareous dolomite.]

604. 645 [Dolomite.]

605. 588 [Limestone.]

606. 525 _ Do.

607. 500 _ Do.

608. 480 _ Do.

609.

610.

611.

612.

613.

614.

615.

Depth (ft)

410 __ [Limestone.]

338 _

300 _

275 _

225 _

198 _

175 _

Do.

Do.

Do.

Do.

Do.

Do.
150 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

Washington Continued

FeO 1 ________

MnO* -

CO.*

Class 

616

46F, 

26-177

0.65

. __ .10

._'__ 1.01

. __ 53.40

. __ 43.07

__ 8 98.23

__ (1,0)97

617

46F, 

26-146

0,08 

.17 

.33 

54.91

43.57

*99.06 

(0,0)99 

Calcite

618

46F, 

26-168

0.29 

.52 

20.20 

31.46 

.03 

47.10

99.60 

(0,0)99 

Dolomite

619

46F, 

26-192

1.24 

.52 

18.05 

33.54 

.02 

46.37

99.74

(1,0)98

Calcareous 

dolomite

620

46F, 

26-196

1.62 

.50 

19.98 

31.25 

.03 

46.69

100.07 

(2.0)98 

Dolomite

621 622

46F, 46F, 

26-149 26-195

0.10 1.59 

.04 .22 

.12 18.64 

55.85 32.91 

_____ .04

44.00 46.37

'100.11 99.77

(0,0)100 (2,0)98

_ Calcareous Calcite , , dolomite

623

46F, 

26-154

0.14 

.06 

1.68 

54.00 

.04 

44.28

100.20 

(0,0)100 

Calcite

624

46F, 

26-169

0.35 

.10 

.21 

55.46 

.02 

44.04

100.18 

(0,0)100 

Calcite

625

46F, 

26-139

0.02 

.07 

.18 

55.57 

.01 

43.89

626 627

46F, 46F, 

26-197 26-210

1.80 5.76 

.09 .04 

.23 .14 

54.68 52.38 

.01 .01 

43.23 41.31

99.74 100.04 99.64 

(0,0)100 (2,0)98 (6,0)94 

Calcite Calcite Calcite

628

46F, 

26-158

0.17 

.05 

.19 

55.57 

.01 

43.87

99.86 

(0,0)100 

Calcite

W ashington Continued

Insoluble _

AljO, ______ .

F<*0, ______ .

FeO 2 ______ .

MgO* ______ . B ,

foO*

MnO* .

CO.*

Total __ .

Class ______ .

CaO/MgO ____ .

629

46F, 

26-194

___ h.36

.05

___ 1.34

___ 53.59

___ .01

___ 43.56

___ 99.91

. __ Calcite

630

46F, 

26-150

"0.10

.05 

.11 

55.70

43.87

*99.83 

(0.0)100 

Calcite

631

46F, 

26-181

1 0.70

.06 

.15 

55.25

43.61

*99.77 

(1,0)99 

Calcite

632

46F, 

26-204

*3.82

.65 

19.99 

29.97 

.07 

45.80

100.30 

(4,0)96 

Dolomite

633

46F, 

26-186

*0.99

.27 

20.40 

31.47 

.03 

47.18

100.34 

( 1.0)99 

Dolomite

634 635

46F, 46F, 

26-209 26-193

*5.22 *1.28 

.62

_____ .34

.35 ______

19.81 20.86 

29.73 20.32

45.15 56.58

100.30 100.00

(5.0)95 0,2,98

_ , . Magnesian Dolomite . f . dolomite

636

46F, 

26-189

1.09

20.74 

29.93

46.14

97.90 

(1,0)97 

Dolomite

637

46F, 

26-199

2.11

20.17 

29.78

45.40

97.46 

(2,0)95 

Dolomite

638

46F, 

26-198

2.11

20.16 

29.76

45.39

97.42 

(2,0)95 

Dolomite

W ashington Continued

SiO, ______

Al,0, _______ .

Fe,0, .

FeO 2 _______ .

CaO*

MnO* .

CO,'

Class _ .

CaO/MgO ____ .

642

46F, 

26-173

___ 0.49

___ 1.00

___ .09

___ .74

___ 54.27

___ 43.41

___ 100.00

___ 0,1,98

__ _ Calcite

643

46F, 

26-178

0.65 

1.12 

.09

.66 

54.21

43.28

100.01

0,1,98 

Calcite

644

46F, 

26-183

0.75 

.42 

.39

19.96 

31.76

46.73

100.01

0,1,98 

Dolomite

645

46F, 

26-175

0.54 

.31 

.36

19.95 

31.35

46.40

98.91

0,1,98 

Dolomite

646

46F, 

26-182

^.72

.12 

55.59

43.76

*100.19

(1,0)99 

Calcite

647 648

46F, 46F, 

. 26-187 26-201

h.04 *2.54

.06 .17 

.40 .81 

55.00 53.57 

_____ .01

43.64 43.05

*100.14 100.15

(1,0)99 (3,0)97 

Calcite Calcite

649

46F,

26-208

1 5.04

.24 

19.05 

30.66 

.02 

45.20

100.21

(5.0)95 

Dolomite

650

46F,

26-207

^.69

.24 

19.18 

30.66 

.02 

45.34

100.13

(5,0)95 

Dolomite

651

46F, 

26-212

1 6.15

.24 

19.41 

29.89 

.02 

44.82

100.53

(6,0)94 

Dolomite

639 640

46F, 46F, 

26-188 26-180

1.09 0.69

20.73 21.05 

29.91 30.76

46.13 47.14

97.86 99.64 

(1,0)97 (1,0)99 

Dolomite Dolomite

652 653

46F, 46F, 

26-179 26-200

1 0.69 12.27

.67 .38 

20.17 19.51 

31.70 31.68 

.12 .05 

47.39 46.61

100.74 100.50

(1,0)99 (2,0)98 

Dolomite Dolomite

641

46F,

26-170

0.35

21.28 

30.85

47.45

99.93 

(0,0)100 

Dolomite

-654 

46F, 

26-185

1 0.97

.43 

20.89 

30.66 

.05 

47.34

100.34

(1,0)99 

Dolomite

W ashington Continued

Insoluble

AljO,

Fe,0, _______ .

FeO* _____

MgO* _______ .

CaO* _______ .

MnO 1 _______ .

CO,' _ _____.

Total __ .

Class ______ .

CaO/MaO.. _ .

655

46F2 

26-151

___ 1 0.10

___ .33

___ 20.39

___ 31.57

___ .03

___ 47.26

___ 99.68

___ (0.0)99

. Dolomite

656

46F, 

26-147

1 0.10

.10 

55.91

43.99

*100.10 

(0.0)100 

Calcite

657

46F, 

26-219

^.lO

.10 

55.87

44.13

*100.20 

(0.0)100 

Calcite

658

46F, 

26-130

*1.32 

} 71.04

.90 

54.10

43.43

100.79 

0.2,98 

Calcite

659

46F, 

26-131

*4.40 

7 3.44

1.97 

49.27

40.83

99.91

0.7.92 

Magnesian

660 661

46F, 46F, 

26-132 26-133

5 5.80 *6.52 

7 3.96 7 3.52

2.87 3.70 

47.33 46.47

40.28 40.51

100.26 100.72

0,9.90 1.9.91 

Magnesian Magnesian

662

46F, 

26-162

*0.21

r .11

I .36

20.72 

31.35

47.24

99.99 

0.0.99 

Dolomite

663

46F, 

26-218

*0.47 

.15 

.32

20.66 

31.28

47.12

100.00 

0,1,99 

Dolomite

664

46F, 

26-172

0.42

21.44 

30.58

47.42

99.86 

(0,0)99 

Dolomite

665 666

46F, 46F, 

26-164 26-141

0.23 0.05

21.05 .50 

31.15 55.51

47.44 44.13

99.87 100.19 

(0,0)100 (0,0)100 

Dolomite Calcite

667

46F, 

26-143

0.06

.43 

55.51

44.06

100.06 

(0,0)100 

Calcite
ANALYSES OF SAMPLES 151

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F^).common-rock category Continued

Chemical analyses Continued

Washington Continued

668

46F, 

26-176

MgO* .

CaO* ________________

___ _ ______ 0.

_ ______ 55.

___________ 43.

55 

43 

12 

74

669

46F, 

26-142

0.05 

.66 

55.42 

44.23

670

46F, 

26-140

0

55

44

.04 

.30 

.63 

.00

671

46F, 

26-190

1.10 

21.21 

29.92 

46.65

Class ____________

CaO/MgO ________

668

46F, 

26-176

<JQ R4

______ Calcite

669

46F, 

26-142

100.36

(0,0)100 

Calcite

670

46F, 

26-140

99.97

(0,0)100 

Calcite

671

46F, 

26-190

98.88

(1.0)98 

Dolomite

Insoluble (acid) 110°C. 

'Calculated from reported FeCOj. 

MgCOj.CaCO, and (or) MnCO,. 

J MnCOj, trace.

4 MnCOs , none.

*SiO,.

*FeCOj, none,MnCOj, none. 

T R,0,.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

616-620. Pend Oreille County. Middle Cambrian, Metaline Limestone. Between 

sees. 15 and 16, T. 39 N., R. 43 E., about 1 mile north of town of 

Metaline Falls. Pend Oreille Mines and Metals Co., Pend Oreille mine. 

Analyst, E. T. Erickson. Drill hole 234. ( Park and Cannon, 1943, p. 2, 

43, 72, 73, pis. 1, 21, 22.) Mineralogy. Graphic presentation of analyses. Index and geologic maps, geologic sections. [For other analyses from 

same drill hole, see samples 602-615, this group; samples 271-273, 

group F,.]

Depth (ft)

616. 150 ___ ______ [Limestone.]

617. 125 ____ _____ Do.

618. 101 _ _ [Dolomite.]

619. 75 _ __ [Calcareous dolomite.]

620. 50 [Dolomite.]

621 - 634. County, age, formation, locality, and reference as in samples 616-620.

Analyst, R. E. Stevens. Drill hole 235. Mineralogy. Graphic presentation of analysis. Index and geologic maps, geologic section.

621. 589 [Limestone.] 628.

622. 550 [Calcareous dolomite.]629.

623. 535 _ [Limestone.] 630.

624. 497 __ Do. 631.

625. 400 __ Do. 632.

626. 375 __ Do. 633.

627. 350 __ Do. 634.

jpth(ft)

325 _ [Limestone.]

300 __ Do.

275 __ Do.

249 __ Do.

175 [Dolomite.]

125 __ Do.

100 __ Do.

635. Pend Oreille County. Metaline Limestone. [Si sec. 16, T. 39 N.,

R. 43 E.] North of Josephine shaft. Analyst, C. M. Collins. Lab. No. 

A-15. ( Dings and Whitebread, 1965, p. 2, J16, pi. 1.) Dolomite, medium-gray, sublithographic. Index and geologic maps, geologic sections.

636-640. Pend Oreille County. Metaline Limestone. [Sec. 16, T. 39 N.,

R. 43 E.], about 1.5 miles north of Metaline Falls. Yellowhead mine. 

( Dings and Whitebread, 1965, p. 2, J16, 100, 101, pis. 1, 2.) Index 

and geologic maps, geologic sections.

636, 637. Analyst, J. C. Crampton. Lab. Nos. A-13, A-14. Dolomite,

light-gray, very fine grained. 

638-640. Dolomite, light- to medium-gray, fine-grained, bedded.

638. Analyst, I. C. Crampton. Sample 42 D 78.

639. Analyst, I. C. Crampton. Sample 42 D 101.

640. Analyst, C. M. Collins. Sample 54 D 27.

641. Pend Oreille County. Metaline Limestone. [Sec. 21, T. 39 N.,

R. 43 E.], west of Metaline Falls. Analyst, C. M. Collins. Lab. No. 

A-16. ( Dings and Whitebread, 1965. p. 2, 16, pi. 1.) Dolomite, lightgray, fine to very fine grained. Index and geologic maps, geologic 

sections.

642 - 645. Pend Oreille County. Metaline Limestone. [Sec. 27 or 34, T. 39 N., 

R. 43 E.], east of Metaline Falls, south slope of Quarry Hill. Analyst, 

C. M. Collins. ( Dings and Whitebread, 1965, p. 2, 9-J12, pi. 1.) Index 

and geologic maps, geologic sections, detailed measured section from 

area.

642. Lab. No. A-18. Limestone, bedded.

643. Lab. No. A-19. Limestone, bedded.

644. Lab. No. A-20. Dolomite, bedded.

645. Lab. No. A-21. Dolomite, bedded.

646-657.

Washington Continued

Pend Oreille County. Metaline Limestone. SWi sec. 29, T. 39 N., 

R. 43 E. Metaline Mining and Leasing Co., Bella May mine. Analyst, 

J. G. Fairchild. ( Park and Cannon, 1943, p. 2, 43, 44, 66. 67, pis. 1, 

21,22.) Mineralogy. Graphic presentation of analyses. Index and 

geologic maps, geologic sections. Samples 646-653, drill hole 40. 

Samples 654-657, drill hole 42. [For another analysis from drill hole 42, 

see sample 274, group Ft.] 

Depth ( ft)

646. 472 ___ [Limestone.] 652.

647.

648.

649.

650.

651.

450 Do.

425 __ Do.

400 [Dolomite.]

375 Do.

351 _ Do.

Depth (ft)

202 [Dolomite.]

653. 168 __ Do.

654. 662 __ Do.

655. 646 ___ Do.

656. 550 [Limestone.]

657. 525 __ Do.

658-661. Pend Oreille County. Metaline Limestone. [T. 39 N., R. 43 E.], about 

2 miles southeast of Metaline Falls. Lehigh Portland Cement Co. quarry. 

(Patty, 1921, p. 83, 84.) Limestone, dark-bluish. Use: Cement 

[implied].

662. Pend Oreille County. Metaline Limestone. [Sees. 12, 13, T. 40 N., 

R. 43 E.], northeast of Crescent Lake. Analyst, C. M. Collins. Lab. 

No. A-6. ( Dings and Whitebread, 1965, p. 2, ^6, pi. 1.) Dolomite, 

light-gray, fine-grained. Index and geologic maps, geologic sections.

663. County, formation, analyst, reference, maps, and sections as in sample 

662. [Sec. 13, T. 40 N., R. 43 E.], southwest of Crescent Lake. 

Lab. No. A-7. Dolomite, cream-gray, fine- to medium-grained.

664,665. Pend Oreille County. Metaline Limestone. Analyst, C. M. Collins. 

( Dings and Whitebread, 1965, p. 2, 16, pi. 1.) Index and geologic 

maps, geologic sections.

664. [Sec. 13 or 14, T. 40 N., R. 43 E.] , northeast slope of Timber 

Hill. Lab. No. A-ll. Dolomite, black and white streaked, 

fine-grained.

665. [Sec. 14, T. 40 N.. R. 43 E.], western slope of Timber Hill. 

Lab. No. A-10. Dolomite, grayish-white, fine-grained.

666-670. Pend Oreille County. Metaline Limestone. [Sec. 22 or 27, T. 40 N., 

R. 43 E.], from hill east of Lead King mine. ( Dings and Whitebread, 

1965, p. 2, 18, 19, _21, pi. 1.) Limestone, gray. Index and 

geologic maps, geologic sections, detailed measured section. 

Photomicrographs.

666. Lab. No. A-5. Sample from bed about 1,525 ft below top of 

formation.

667. Lab. No. A-4. Sample from bed about 1.300 ft.below top of 

formation.

668. Lab. No. A-3. Sample from bed about 915 ft below top of 

formation.

669. Lab. No. A-2 Sample from bed about 685 ft below top of 

formation.

670. Lab. No. A-l. Sample from bed about 425 ft below top of 

formation.

671. Pend Oreille County. Metaline Limestone. [Sec. 24. T. 40 N..

R. 43 E.], north of Lime Creek. Analyst. C. M. Collins. Lab. No. 

A-12. ( Dings and Whitebread, 1965, p. 2.16, pi. 1.) Dolomite, lightgray, sublithographic. Index and geologic maps, geologic sections.
152 CHEMICAL COMPOSITION OP SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F8). common-rock category Continued

Chemical analyses Continued

SiOj __ _ 

AljO, 

Fe20, 

MgO __________

CaO __________

COj __________

Total

Class __________

CaO/MgO _______

SiOj ___________

MgO _ __ _______

CaO __________

D C\

Class ___________

CaO/MgO ________

SiOj ___________

AljQi __________

FezO, __________

MgO ____ _____

CaO __ _ _ _ _

ftOs __________

Total _ _ ___

Class ___________

CaO/MgO ________

672

46Fj 

26-171

J 0.36

'.07

'.91

_ *54.62

'.01

*43.93

99.90

(0,0)99

Calcite

685

46Fz26-60

1.32

.72

.70

54.86

._ *42.84

_ [100.44]

0,2,97

_ Calcite

698

46F228-187

3.63

- ] '.10

.55

52.45

.018

*41.83

._ [98.58]

3.0,95

Calcite

673

46Fj 

26-138

*0.01

'None 

'None 

*55.78 

'None 

*43.79

99.58 

(0,0)99 

Calcite

686

46F,26-58

0.92 

.76 

'Trace 

*54.62

*42.88

99.18 

0.2,98 

Calcite

699

46F,28-45

3.03 

'.56

.33 

53.42 

.003 

'42.23

[99.57]

2.2.96 

Calcite

674

46F, 

26-184

V78

'None 

*.02 

J 45.04 

'None 

*53.23

99.07 

(1,0)98 

Calcite

687

46Fj26-57

2.48 

3.02 

*1.40 

*51.20

*41.72

99.82 

0,4,94 

Calcite

700

46F,28-31

1.91 

f .29 

I .13 

.11 

54.62

42.83

[99.89]

1,1.97 

Calcite

675

46Fj 

26-211

'5.83

'None 

*2.05 

*40.06 

'None 

*51.71

99.65

(6,0)94

Magnesian 

calcite

688

46Fj26-59

2.32 

1.52 

1.89 

51.74

'42.40

99.87 

0,4,95 

Calcite

701

46Fj28-27

5.89 

) 8 .82

.25 

51.64 

.011 

'40.60

[99.21]

6,2.92 

Calcite

Washington Continued

676 677 678

46Fj 46F, 46Fj 

26-213 26-157 26-144

'8.76 '0.17 '0.06

'None *None *None 

*.31 *19.79 *1.01 

*50.44 *32.39 *54.23 

'None *.02 'None 

*39.94 *47.06 *43.85

99.45 99.43 99.15 

(9,0)91 (0,0)99 (0,0)99 

Calcite Dolomite Calcite

Washington Continued

689 690 691

46F,26-53 46F,26-17 46F,26-18

1.60 3.10 3.60 

'Trace 1.68 4.12 

'Trace .96 Trace 

*55.18 51.12 49.28

*43.32 *42.90 *41.94

[100.10] 99.76 98.94 

2,0,98 0,6,93 0,9,88 

Calcite Calcite Calcite

Washington Continued

702 703 704

46F,28-28 46Fj28-29 46Fj28-30

1.84 2.36 4.31 

8 .31 8 .28 '1.06

.14 .22 .16 

54.53 54.20 54.29 

.001 .006 .018 

'42.64 '41.90 '41.36

[99.46] [98.97] [101.19]

1,1,97 2.1.95 3,3.93 

Calcite Calcite Calcite

679

46Fj 

26-148

1 0.10

'None *.« 

*55.66 

*None 

*44.14

100.31 

(0,0)100 

Calcite

692

46Fj26-20

8.00 

1.10 

Trace 

49.71

[58.81] 

6,3,89 

Calcite

705

46F,28-84

1.51 

8 .77

.20 

54.36 

.009 

'42.52

[99.37]

0.2.96 

Calcite

680

46Fj

26-156

| 0.16

} '"

21.68 

30.45

4 47.55 

A little

100.06 

0,0,100 

Dolomite

693

46F,26-35

5.00 

3.80 

16.54 

31.05

[56.39]

0,9,90

Calcareous 

dolomite

706

46Fj28-85

0.48 

8 .27

.10 

55.28 

.006 

*43.01

[99.15]

0.1,98 

Calcite

681

46Fj 

26-165

0.24 

.29

21.69 

30.35

4 47.48 

Trace

100.05 

0,0,99 

Dolomite

694

46F,26-34

5.00 

4.90 

15.67 

30.97

[56.54]

0,9,88

Calcareous 

dolomite

707

46F,28-90

1.22 

8 .14

.22 

54.90 

.030 

'43.10

[99.61]

1.0,98 

Calcite

682

46Fj 

26-167

0.29

*21.04 

1 31.21

*47.48

100.02 

(0,0)100 

Dolomite

695

46Fj26-36

4.60 

1.30 

18.10 

30.52

[54.52] 

2,4,92 

Dolomite

708

46Fi28-91

2.74 

'.69

.09 

53.73 

.012 

'42.02

[99.28]

2.2.95 

Calcite

683

46F, 

26-160

0.21

*21.10 

*31.03

*47.40

99.74 

(0,0)100 

Dolomite

696

46Fj27-8

2.40 

7.50 

'.45 

1 52.63

*41.81

[97.79] 

2,1,95 

Calcite

709

684

46F, 

26-71

1.88

f .80 

( .44

.82 

53.70

*42.60

[100.24] 

0,3,96 

Calcite

697

46Fi28-165

0.71 

8.45 

.43 

54.79 

.037 

*43.46

[99.88] 

0,1,98 

Calcite

710

46F,28-112 46Fj28-113

0.70 

8 .38

.11

55.42 

.009 

'42.80

[99.42]

0.1.97 

Calcite

0.63 

'.32

.16

55.06 

.009 

'43.45

[99.63]

0,1,99 

Calcite

See following page for footnotes.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: LiiO > BeO,B,Os .K,O.SczO,,V,Os ,CoO,ZnO,GajO,,GeO2 .AstOJ ,Y,O,,ZrOj,Nb,O5 ,MoOs,Ag,O,Ru,Rh,Pd, 

CdO.InzOj.SnOj.SbzO^BaO.TeO^CsiO.LajOj.CeO^PrjOj.Nc^ 

j, PbO, BigO), ThOj, UOjJ

Na20 _____ .

TiOj _____ .

Cl20, __ .

MnO ____ .

CuO

SrO _____

697

0.008

. ___ .20

. ___ .0016

. ___ .010

698

.033

.14

.0026

.014

699

0.014

.21

.0027

.013

701

0.0092

.34

.0015

.0086

702

0.004

.15

.0016

.042

703

0.075

.0028

.19

.0024

.0052

704

0.13

.024

.26

.0019

.010

705

0.014

.40

.0047

.011

706

0.0044

.061

.0025

.015

707

0.0024

.027 '

.0022

.0056

708

0.016

.081

.0019

.0098

709

0.0076

.058

.0018

.0098

710

0.0068

.015

.0037

.011
ANALYSES OF SAMPLES 153

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

672-679. Pend Oreille County. Middle Cambrian, Metaline Limestone. SEi sec. 27, 

T. 40 N., R. 43 E. Pend Oreille Mines and Metals Co., Lead King mine. 

Analyst. J. J. Fahey. Drill hole 15. ( Park and Cannon, 1943, p. 2, 44, 

70, pis. 1, 21, 22.) Mineralogy. Graphic presentation of analysis. 

Index and geologic maps, geologic sections.

672. 1000 [Limestone.]

673. 900 _____________ Do.

674. 800 _______________ Do.

675. 692 ______________ Do.

676. 600 ____________ Do.

677. 500 ____ ______ [Dolomite.]

678. 400 __ ____ [Limestone.]

679. 300 ______________ Do.

680, 681. Pend Oreille County. Metaline Limestone. Sec. 12, T. 40 N., R. 44 E., 

north side of Crescent Lake. Analyst, R. C. Wells. ( Park and Cannon, 

1943, p. 2, 42, pi. 1.) Index and geologic maps, geologic sections.

680. Dolomite, black; contains small amount of organic material.

681. Dolomite, white or light-colored.

682, 683. Pend Oreille County. Metaline Limestone. [NW» T. 40 N., R. 44 E.], 

south end of Confusion Ridge. Analyst, C. M. Collins. ( Dings and 

Whitebread, 1965, p. 2, 16, pi. 1.) Index and geologic maps, geologic 

sections.

682. Lab. No. A-9. Dolomite, light-gray, fine- to medium-grained.

683. Lab. No. A-8. Dolomite, light-gray with faint streaks and darkgray patches, fine-grained.

684. Pend Oreille County. Paleozoic. NEj sec. 27, T. 39 N., R. 43 E.. about 

1 mile southeast of town of Metaline Falls. Lehigh Portland Cement Co. 

( Hodge, I938d, p. 13, 95, 122-124,226.) Limestone, bedded. Index 

and geologic maps. Use: Portland cement.

685. Pend Oreille County. Paleozoic. [T. 39 N., R. 43 E.]. Metaline Falls. 

Inland Portland Cement Co. quarry. ( Landes, 1934, p. 1077, 1080.) 

General for county: Limestone, white to gray, crystalline. Use: Cement 

[ implied].

686,687. Pend Oreille County. Paleozoic( Landes, 1934). [T. 39 N., R. 43 E.,

near] Metaline Falls. Inland Portland Cement Co. Analyst, C. R. Ranch. 

(Burchard, 1912, p. 695, pi. 1.) Limestone. Index map. Use: Cement 

[ implied].

688. Pend Oreille County. Paleozoic( Landes, 1934). T. 39 N., R. 43 E.,

Metaline Falls. Inland Portland Cement Co. Analyst, A. A. Hammer. 

(Shedd, 1913, p. 180, 190,291. 192 -> Limestone, dark-colored, 

compact, fine-grained; at least 300 ft thick. Index map. Possible use: 

Portland cement.

689. Pend Oreille County. Sees. 19, 20, T. 38 N., R. 43 E., 3 miles north of 

town of lone, Box Canyon. (Landes, 1905 [1906], p. 381,382; Hodge, 

1938d, p. 13, 95, 2§9.) Limestone. Index and geologic maps. Possible 

use: Cement.

690-695. Pend Oreille County. T. 38 N., R. 43 E., town of Cement. Jordan.

property. ( Shedd, 1913, p. 180, 184, 185. 245. pi. 21.) Index maps.

690. Analyst, A. A. Hammer. No. 25. Limestone, unweathered, finegrained. Possible use: Portland cement.

691. Analyst, A. A. Hammer. No. 27. Limestone, dark-blue, compact, brittle. Composite of small samples taken at intervals along 

face of bluff. Possible use: Portland cement.

692. No. 29. Limestone. Possible use: Cement.

693. No. 38. [Calcareous dolomite] magnesian limestone.

694. No. 40. [Calcareous dolomite] magnesian limestone.

695. No. 41. [Dolomite] magnesian limestone.

696. Pierce County. Holocene. SWj sec. 12, T. 19 N., R. 4E., 0.75 mile 

from town of McMillin. Valley Lime Co. (Si sec. 7, T. 19 N., 

R. 5 E., about 3 miles north of town of Orting, McMillan deposit, Danner, 

1966.) ( Hodge, 1938d, p. 76. 77, 78; Danner, 1966, p. 82, 436, 442, 

443.) Travertine ( tufa), few inches to 40 ft thick. Approximate analysis

Footnotes of analyses on preceding page;

1 Insoluble ( acid) 110°C.

Calculated from reported FeCO3 , MgCOs, CaCO3 , aiwHor) MnCOs.

3 Reported as FeCO9 , MgCO3 , or MnCOs.

Reported as calculated. 

5 Ignition loss.

Washington Continued

of shipped product. Index and geologic maps. Former use: Lime, flux. 

Use: Agricultural lime, chicken grit, stock feed. Possible use: Ornamental stone.

697. San Juan County. Devonian:?). SEi sec. 11, T. 36 N., R. 3 W., Jones 

Island. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample SJ 33-1. (Danner, 1966. p. 16, 19. 

82, 94, 131-J133, 448. 458.) Limestone, light-gray, crystalline, fossiliferous; chip sample taken across 14 ft. Tonnage estimated. Index 

and geologic maps. Possible use: None, deposit small.

698. San Juan County. Devonian. Ni sec. 20, T. 36 N., R. 3 W., about 6 

miles northwest of Friday Harbor, O'Neal Island. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample 

SJ 18-1. ( Danner, 1966, p. 16. 19. 82. 123. 124, 448. 457.) 

Limestone, dark-gray, fossiliferous, partly recrystallized and silicified; 

weathers light gray. Chip sample taken across 100 ft. Index and geologic maps.

699. San Juan County. Devonian. Cen. sec. 15, T. 37 N., R. 2W., Orcas

Island. Double Hill deposit. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample SJ 15-1. (Danner, 

1966, p. 16, 19, 82, 141, 152, 156, 157, 448. 457.) Limestone, 

light-bluish-gray, dense to finely crystalline; contains calcite veinlets, 

chert or jasperoid. Chip sample taken across 75 ft. Tonnage estimated. 

Index and geologic maps.

700- 704. San Juan County. Late Middle Devonian. SEj sec. 20, T. 37 N.. R. 2 W., 

Orcas Island. Red Cross deposit. Limestone, gray, fossiliferous, 

partially recrystallized; contains chert or jasperoid. Tonnage estimated. 

Index and geologic maps. Former use: Pulp and paper industry.

700. ( Danner, 1966. p. 82, 141-144.)

701 - 704. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 

141-244, 448, 457.)

701. Sample SJ 19-1. Chip sample taken across 120 ft.

702. Sample SJ 21-1. Chip sample taken across 40 ft.

703. Sample SJ 22-1. Chip sample taken across 22 ft.

704. Sample SJ 23-1, weathers white. Chip sample taken 

across 235 ft.

705, 706. San Juan County. Late Middle Devonian. T. 37 N., R. 2 W., Orcas

Island. Owner, Ruth Brown. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 

141. 176.277, 179, 449. 458.) Limestone, light-gray to buff, oolitic 

and clastic to dense and crystalline, fossiliferous. Chip sample. Tonnage 

estimated. Index and geologic maps. Former use: Lime. Possible use: 

None.

705. SW^SEa sec. 30. North quarry. Sample SJ 40-1 taken across 55 ft.

706. NEjNW* sec. 31. South quarry. Sample SJ 40-2 taken across 

150 ft.

707, 708. San Juan County. Devonian. SEi sec. 30, T. 37 N., R. 2 W., Orcas 

Island. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 183-JJ35, 449. 

458.) Chip sample. Tonnage estimated. Index and geologic maps.

707.

708.

Big Soderberg quarry. Sample SJ 38-1. Limestone, dark-bluegray, dark-gray, white, crystalline. Composite sample. Use: 

Pulp and paper industry, decorative stone.

Little Soderberg quarry. Sample SJ 38-2. Limestone, gray to darkgray, fossiliferous, mostly crystalline; taken across 60 ft.

709, 710. San Juan County. Devonian or Pennsylvanian. SWj and NWj sec. 31, 

T. 37 N., R. 2 W., Orcas Island. Imperial deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 141, 185-J187, 188, 449. 458.) Limestone, bluish-gray, crystalline, chip sample. Tonnage estimated. Index 

and geologic maps. Former use: Lime.

709. Sajnple SJ 37-1 taken across 80 ft.

710. Sample SJ 37-2 taken across 100 ft.

6 Aluminum and iron oxides.

7 Iron oxide.

'R»0,.

'Sample dried at 110°-112°Cs ignition loss l.
154 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F,}, common-rock category Continued

Chemical analyses Continued

Washington Continued

SiO,

RA _______

MgO _______

CaO

PA _____

Ignition loss

Total __

Class ______

CaO/MgO ___

711

46FZ 

28-19

. ____ 1.14

. ____ .31

. ____ 54.44

. ____ 43.11

. __ _ 99.00

. ____ 1.0.98

. ____ Calcite

712

46FZ 

28-114

0.90 

.72 

.27 

54.71 

.158 

'42.65

[99.41]

0,2,97 

Calcite

713

46F, 

28-115

0.69 

.45 

.22 

54.88 

.108 

'43.61

[99.96]

0,1,98 

Calcite

714

46FZ 

28-116

0.80 

.33 

.15 

54.81 

.068 

'42.97

[99.13]

0,1,97 

Calcite

715

46F, 

28-32

2.44 

.60 

.27 

54.03 

.172 

'42.05

[99.56]

1,2,95 

Calcite

716 717

46FZ 46FZ 

28-33 28-34

0.61 0.93 

.49 .17 

.25 .09 

54.81 55.07 

.218 .175 

'42.69 '42.62

[99.07] [99.06]

0,1,97 1,0.97 

Calcite Calcite

718

46F, 

28-35

0.85 

.25 

.30 

55.05 

.092 

'43.02

[99.56]

0,1,98 

Calcite

719

46FZ 

28-36

0.48 

.21 

.16 

55.36 

.105 

'43.10

[99.42]

0.1,98 

Calcite

720

46F, 

28-43

3.60 

.56 

.32 

53.35 

.044 

'42.48

[100.35]

3,2.96 

Calcite

721 722

46FZ 46F, 

28-174 28-171

0.28 0.22 

.17 .19 

.17 .24 

55.31 55.16 

.039 .036 

'43.56 '43.20

[99.53] [99.05]

0.0,99 0,0,98 

Calcite Calcite

723

46FZ 

28-154

1.11 

.33 

.29 

54.92 

.032 

'43.28

[99.96]

1,1,98 

Calcite

Washington Continued

SiO, ____ _.

A1A .

Fe,0, .

MgO _ . 

CaO __

P.f)r

Total _.

Class ___ 

724

46F, 

28-157

. ____ 0.50

' J '.22

9n

. ____ 55.48

noo

. __ '43.53

._ __ _ [99.95]

. ____ 0.1,99

. ____ Calcite

725

46FZ 

28-170

0.32 

'.17

.10 

55.59 

.024 

'43.58

[99.78]

0,0,99 

Calcite

726

46F, 

28-169 

0.31

2 .14

.22 

55.42 

.018 

'43.67

[99.78]

0.0,99 

Calcite

727

46FZ 

28-156

0.13 

'.35

.31 

55.37 

.032 

'43.68

[99.87]

0,0,99 

Calcite

728

46F, 

28-162

0.65 

*.27

.26 

55.08 

.021 

'43.52

[99.80]

0.1,99 

Calcite

729 730

46FZ 46FZ 

28-122 28-4

0.20 0.20

*.49 .17 

*55.22 *55.82

'43.88 7 44.00

[100.09] [100.19]

0,0,100 0,0,100 

Calcite Calcite

731

46FZ 

28-123

0.27 

».21

s .22 

*55.50

6 43.80

[100.00]

0,0,100 

Calcite

732

46F, 

28-12

0.25 

4 .80

*55.38 

*.23

'43.47

[100.13]

0.0.99 

Calcite

733

46FZ 

28-121

0.44 

*1.13

*55.08 

s.25

6 43.24

[100.14]

0,1,98 

Calcite

734 735

46F, 46FZ 

28-163 28-120

0.62 0.44

{ :Sh»

.13 ______

55.32 *55.02

43.64 '43.19

[100.02] [99.78]

0,1,99 0,1,98 

Calcite Calcite

736

46FZ 

28-188

0.21 

4 .44

s .19 

*55.17

'43.53

99.54

0,0,100 

Calcite

Washington Continued

SiO, _______

RA _______

MgO _ __

CaO

PA 

Ignition loss __

Total __

Class ______

CaO/MgO ___

737

46FZ 

28-3

0.14 

4 .10 

*.20 

*55.32

6 43.65

99.41

0.0.99 

Calcite

738

46FZ 

28-160

0.84 

.17 

.21 

55.32 

.010 

'43.46

[100.01]

1.0.99 

Calcite

739

46F, 

28-147

1.31 

.46 

.12 

54.60 

.018 

'42.98

[99.49]

1.1.97 

Calcite

740

46FZ 

28-141

2.65 

.39 

.17 

53.85 

.100 

'42.49

[99.65]

2.1,96 

Calcite

741 742

46FZ 46FZ 

28-144 28-143

1.80 1.69 

.51 .43 

.22 .31 

54.37 54.36 

.096 .041 

'42.68 '42.77

[99.68] [99.60]

1,1,97 1.1.97 

Calcite Calcite

743

46F, 

28-137

3.74 

.41 

.22 

53.23 

.163 

'41.81

[99.57]

3.1.95 

Calcite

744

46FZ

28-152

1.97 

.93 

.44

53.81 

.127 

'42.57

[99.85]

0.3.96 

Calcite

745

46F, 

28-164

0.72 

.33 

.24 

54.91 

.138 

'43.25

[99.59]

0.1.98 

Calcite

746 747

46FZ 46F, 

28-172 28-155

0.22 1.13 

.20 .79 

.16 .39 

55.21 54.42 

.144 .015 

'43.53 '42.96

[99.46] [99.70]

0.0,98 0.2.97 

Calcite Calcite

748

46FZ 

28-148

1.51 

.90 

.34 

54.19 

.030 

'42.94

[99.91]

0.3.97 

Calcite

'Sample dried at 1108-1128 C; 

ignition loss 1,000°-1,1000 C. 

*R*0,. 

'iron and aluminum oxides.

* Iron and alumina; sample 737 

iron oxide and alumina.

5 Calculated from reported MgCOj, 

CaCOj, and(or) P.

*CO,, calculated from reported MgCO, 

and(or) CaCO,.

7 CO}, calculated from reported MgO 

and CaCO,.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LizO,BeO.B,O$ ,KjO,SczO$ ,CoO,ZnO,Ga2O$ ,GeO|,AszO,,YzO$ ,ZrO|,NblO5 ,MoO,,AgrO,Ru,Rh,Pd,CdO,

NazO ____

TiO, 

VZ05 

Ct,0, 

MnO ___

NiO ____

CuO ____ 

SrO ___

Na,0 ___ 

TiO| __ 

VZ05 

CrzO, ___

MnO _ _ 

NiO _ _

CuO ____ 

SrO ____

712

0.006

.00061

.37

.0033 

.020

726

0.006

.046

.0014 

.015

713

0.0088

.0012

.058

.0019 

.035

727

0.0064

.022

.0025 

.013

714

0.0028

.00051

.016

.0024 

.035

728

0.006

.0005

.04

.0012 

.015

715

0.015

.003

.0005

.021

.0012 

.022

738

0.0024

.05

.00088 

.018

716

0.0088

.003

.0005

.037

.0010 

.042

739

.0068

.074

.0012 

.015

717

0.003

.032

.0014 

.038

740

.012

.17

.0026 

.024

718

0.004

.003

.061

.00072 

.028

741

.010

.038

.0012 

.014

719

0.0028

.003

.032

.0010 

.031

742

0.012

.12

.001

.0038 

.014

720

0.025

.0007

.10 

.001

.0022 

.012

743

0.0028

-.18 

.001

.0011 

.015

721

0.002

.12

.0018 

.0098

744

0.029

.0005

.50

.0020 

.018

722

0.002

.054

.0011 

.013

745

.006

.045

.0010 

.017

723

0.012

.0005

.027

.0019 

.015

746

0.0044

.028

.00088 

.011

724

0.002

.055

.0016 

.011

747

0.079

.077

.0014 

.017

725

0.0028

.0005

.14

.0014 

.014

748

0.093

.065

.0016 

.021
ANALYSES OF SAMPLES 155

DESCRIPTIVE NOTES

[ Underscored page numbers in reference Indicate source of analysis]

Washington Continued

711. San Juan County. Devonian or Pennsylvanian. Sec. 31. T. 37 N», R. 2 W., 

Orcas Island, town of East Sound. Cowles Lime Co. Analyst, 

A. A. Hammer. ( Shedd. 1913, p. 204, 205. 206, 247. pi. 21; Danner, 

1966, p. 82, 141, 185-J187, 188.) Limestone, crystalline, massive. Tonnage estimated. Index and geologic maps. Uset Quicklime. Possible 

use: Portland cement.

712- 714. San Juan County. Devonian:?) and Permian. NWi sec. 29, NEi sec. 30, 

T. 37 N., R. 2 W., Orcas Island. Soderberg Beach deposits. Analyst, 

under supervision of Mark Adams; spectrochemical analyst, C.E. Harvey. 

(Danner, 1966, p. 16, 19. 82, 141, 188-^90, 449, 458.) Limestone, 

light-gray, mostly dense to clastic; partially recrystallized. Chip sample. 

Index and geologic maps. Possible use: None, deposit small.

712. Sample SJ 39-1 taken across 50 ft; about 4 ft thick.

713. Sample SJ 39-2 taken across 23 ft; maximum thickness 23 ft.

714. Sample SJ 39-3 taken across 30 ft.

715-719. San Juan County. Misslssippiaii ?). NEiNWi sec. 2, T. 36 N., R. 2 W., 

Orcas Island. McGraw-Kittinger deposits. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, 

p. 16, 19, 82, 141, 145-^47, 148, 448. 457.) Limestone, gray, crystalline. Chip sample. Tonnage estimated. Index and geologic maps. 

Former use: Agricultural. Use: Pulp and paper industry.

715. Sample SJ 29-1 taken across 70 ft.

716. Sample SJ 29-2 taken across 70 ft.

717. Sample SJ 29-3 taken across 40 ft.

718. Sample SJ 29-4 composite.

719. Sample SJ 29-5 taken across 60 ft.

720. San Juan County. Early Pennsylvanian. Center SEi sec. 15, T. 37 N., 

R. 2 W., Orcas Island, about 0.75 mile west of town of East Sound. 

Double Hill deposit. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample SJ 8-1. ( Danner, 1966, p. 16, 

19. 82, 141, 151, 152, 154. 155. 448. 456.) Limestone, light-gray, 

dense to finely crystalline, fossiliferous; contains jasperoid. Thin-section 

description. Chip sample taken across 30 ft. Tonnage estimated. Index 

and geologic maps. Possible use: None, deposit impure.

721-723. San Juan County. Pennsylvanian or Permian. NEj sec. 23, T. 36 N.,

R. 4 W., San Juan Island. Roche Harbor Lime and Cement Co. Analyst, 

under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 84-87, 88, 449, 459.) General: Limestone, mostly bluish gray, fossiliferous; from few feet to more than 50 ft 

thick. Chip sample. Tonnage estimated. Index and geologic maps. 

Possible use: None, deposits largely depleted.

721. Sample SJ 51-1 taken across 25 ft.

722. Sample SJ 51-2 taken across 25 ft.

723. Sample SJ 62-1 taken across 320 ft.

724, 725. County, age, analysts, and maps as in samples 721-723. NW^SEi sec. 23, 

T. 36 N., R. 4 W., San Juan Island, about 1 mile southeast of town of 

Roche Harbor. Mosquito Pass quarries. ( Danner, 1966, p. 16, 19, 82, 

84, 86, 90, 449, 459.) Limestone, coarsely crystalline; occurs in lenses. 

Chip sample. Tonnage estimated. Former use: Lime.

724. Sample SJ 52-1 taken across 10 ft.

725. Sample SJ 52-2,composite.

726- 728. County, age, analysts, remarks, maps, and use as in samples 721-723.

SElt sec. 23, T. 36 N., R. 4 W., San Juan Island. Roche Harbor Lime 

and Cement Co. ( Danner, 1966, p. 16, 19. 82. 84-87, 88, 449. 459.) 

Chip sample. Tonnage estimated.

726. Wescott Bay quarry. Sample SJ 51-3 taken across 30 ft.

727. Wescott Bay quarry. Sample SJ 51-4 taken across 20 ft.

728. Wescott Bay, outcrop. Sample SJ 53-1 taken across 50 ft.

729- 735. County, age, remarks, maps, and use as in samples 721-723. Sec. 23, 

T. 36 N.. R. 4 W., San Juan Island, Roche Harbor area. ( Danner, 

1966, p. 82, 84-J38.) Tonnage estimated.

Washington Continued

729. Tacoma and Roche Harbor Lime Co. Analyst, C. F. McKenna. 

( Landes. 1905 [1906], p. 377, 378; McLellan, 1927, p. 91, 

164-166.) Limestone, bluish-gray, coarse- to medium-grained, 

recrystallized; 200 ft exposed above tidewater. Use: Cement, 

lime [implied].

730. ( Hodge, 1935c. p. 59-61; Hodge. 1938b, p. US.) Comprehensive 

sample of seven different quarries. Use: Agricultural, chemical, 

flux, glass, insecticide, pulp and paper industry.

731. ( Landes, 1905 [1906], p. 377. 378.) Limestone, entirely crystalline, uniform in character; 200 ft exposed above tidewater. 

Usei Lime.

732. ( Landes. 1902. p. 24-26.) Limestone, crystalline; 250 ft exposed 

above tidewater. Use: Flux. lime.

733. (Brown. 1901. p. 196.)

735. ( Landes, 1905 [1906], p. 377, 378.) Use: Lime.

736. San Juan County. Pennsylvanian or Permian( Danner, 1966, p. 84). 

[T. 36 N., R. 4 W.], north end of San Juan Island, Roche Harbor. 

Roche Harbor Lime and Cement Co. ( Hodge, 1935c, p. 59-61, 64.) 

Limestone, uniform in character and composition; 200 ft exposed above 

tidewater. Sample is average of all analyses made by various chemists 

of limestone in the Roche Harbor area. Tonnage estimated. Use: 

Agricultural, chemical, glass, metallurgical, pulp and paper industry.

737. San Juan County. Pennsylvanian or Permian ( Danner, 1966, p. 84).

[T. 36 N.. R. 4 W.]. San Juan Island. Roche Harbor. ( Darton. 1909, 

p. 21, 22.) Limestone( marble). Use: Lime. Possible use: Cement.

738-740. San Juan County. Permian:?). S|NE-i sec. 15, T. 36 N., R. 4W.,

Henry Island. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 68, 82, 84. 125, 

/ 126. 127. 128. 449, 459.) Limestone, light- to dark-gray, mostly

crystalline; contains chert or jasperoid. Chip sample. Tonnage estimated. 

Index and geologic maps. Former use: Lime.

738. Quarry. Sample SJ 56-1 taken across 35 ft.

739. Quarry. Sample SJ 56-2 taken across 80 ft.

740. Outcrop southeast of quarry. Sample 56-3, composite.

741- 744. County, analysts, reference, and use as in samples 738-740. Permian.

N^SEj sec. 15, T. 36 N., R. 4 W., Henry Island. Abandoned quarries. 

Limestone, gray, dense to crystalline. Thin-section description. Chip 

sample. Tonnage estimated. Index and geologic maps.

741. Sample SJ 55-1 taken across 20 ft.

742. Sample SJ 60-1 taken across 90 ft.

743. Sample SJ 60-2 taken across 40 ft.

744. Sample SJ 60-3, composite.

745, 746. County, age, and analysts as in samples 741-744. T. 36 N., R. 4 W.,

Henry Island. ( Danner, 1966, p. 16, 19, 82, 84, 128. 129. 130. 449. 

459.) Thin-section description. Chip sample taken across 100 ft. Tonnage estimated. Index and geologic maps. Possible use: None, deposit 

small.

745. SWiSEi sec. 21. Keliett Bluff deposit. Sample SJ 57-1. Limestone, light-gray, crystalline.

746. NWj NEi sec. 22, west side of Nelson Bay. Sample SJ 59-1.

Limestone, light-gray; weathers almost white; iuterbedded with 

ribbon chert.

747, 748. San Juan County. Permian:?). SEiNWi sec. 25, T. 36N., R. 4W.,

San Juan Island. English Camp deposit; owner J. Crook. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 84, 91, j»2, 449. 460.) Limestone, 

light-gray, dense to finely crystalline; about 10 ft thick. Thin-section 

description. Chip sample. Tonnage estimated. Index and geologic 

maps. Former use: Lime.

747. Sample SJ 64-1 taken across 35 ft.

748. Sample SJ 64-2 taken across 63 ft.
156 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Ft),common-rock category Continued

Chemical analyses Continued

Washington Continued

SiOj _________

AljO, .

Fe.0, .

MgQ __________

CaO __________

P,05 _

SO, _

Ignition loss ___

Total ____

Class _________

CaO/MgO ______

749

46F2 

28-140

. __ 2.65

 ]. x i.oo

27

. __ 54.19

. __ .160

. __ '41.53

. __ [99.80]

. __ 1.3.94

. __ Calcite

750

46F2 

28-153

1.91

X 1.04

.26 

53.93

.071

'42.45

[99.66] 

0,3,96

Calcite

751

46F2 

28-135

3.03 

'.95

.25 

53.57

.070

. *42.01

[99.88] 

1.3.95

Calcite

752

46F2 

28-182

1.16

'.6i

.51

54.00

.014

'43.12

[99.41] 

0,2,97

Calcite

753 754

46F2 46F2 

28-175 28-176

1.59 5.17 

x .90 xl.ll

3.38 3.49 

50.71 48.04

.100 .030

'43.41 '41.68

5 [100.09] '[99.52] 

0,3,97 3,3,93 

Magnesian Magnesian 

calcite calcite

755

46F2 

28-177

0.93 

».60

2.08 

52.51

.030

'43.56

[99.61] 

0.1.98 

Magnesian 

calcite

756

46F, 

28-178

1.20 

*.70

6.03 

47.29

.170

'43.98

 [99.37] 

0,2.97 

Magnesian 

calcite

757

46F2 

28-179

3.63

'.6i

5.79 

47.58

.088

*42.63

 [100.33] 

3,2,94 

Magnesian 

calcite

758 759

46F2 46F2 

28-180 28-11

1.15 1.60 ' «{ 5

1.42 2.30 

53.08 52.35 

_____ .07

.045 _____

_____ .01

'43.19 43.20

[99.80] 99.95 

0,2.97 1.1.97

Calcite Ma8*fUl 

calcite

760

46F2 

28-181

2 .92 

*52.64

4 42. 32

[95.88] 

0,0,96

Calcite

761

46Ft 

28-150

1.71 

} '.95

.48 

54.06

.113

'42.85

[100.16] 

0,3,97

Calcite

Washington Continued

762 763

46F.28-139 46F.28-145

SiOj _________

R»0, _

MgO _________

CaO __________

P,05 _

Ignition loss* ___

Total _____

Class _________

CaO/MgO ______

. __ 2.35

. __ 1.13

. __ .59

. __ ' 53.63

. __ .200

. __ 42.63

. __ [100.53]

. __ 0.3.96

. __ Calcite

1.44 

1.01 

.55 

54.00 

.205 

42.92

[100.12] 

0.3,97

Calcite

764

46F.28-151

1.76 

.29 

6.97 

47.01 

.132 

43.98

[100.14] 

1,1,97 

Magnesian 

calcite

765

46F.28-44

1.99 

2.53 

6.50 

46.39 

.455 

42.59

[100.46] 

0,3,94 

Magnesian 

calcite

766 767

46F.28-53 46F.28-56

0.69 3.33 

.35 .90 

.35 1.35 

55.03 51.79 

.150 .010 

43.23 42.12

'[99.80] [99.50] 

0,1,98 2,3,95

Calcite Calcite

768

46F.28-57

4.81 

1.33 

.35 

52.12 

.062 

40.65

[99.32] 

3.4,92

Calcite

769

46F228-58

1.40 

.36 

.29 

54.53 

.028 

42.94

[99.55] 

1.1,97

Calcite

770

46F228-95

2.69 

.80 

.47 

53.48 

.120 

42.27

[99.83] 

1,2.95

Calcite

771 772

46F228-96 46F2 28-97

1.61 1.20 

.73 .65 

1.63 .31 

52.70 54.28 

.055 .024 

43.12 43.10

[99.84] [99.56] 

0.2,97 0.2,98

Calcite Calcite

773

46F.28-59

3.41 

.93 

.12 

53.20 

.009 

42.05

[99.72] 

2.3,95

Calcite

774

46F,28-37

4.20 

.42 

.17 

55.33 

.046 

41.92

[102.09] 

3,1,95

Calcite

Washington Continued

SiOj _________

R*0S .

MgQ __________

CaO __________

Pj05 .

Ignition loss' ___

Total _____

Class _________

CaO/MgO ______

775

46F228-38

0.40 

.32 

.16 

55.36 

.044 

43.03

[99.31] 

0,1,98 

Calcite

776

46F228-39

0.41 

.56 

.17 

55.40 

.205 

43.42

[100.16] 

0,1.99 

Calcite

777

46F.28-41

0.38 

.14 

.11 

55.62 

.032 

43.68

[99.96] 

0,0,99 

Calcite

778 779 780

46F228-40 46F.28-110 46F228-111

0.15 1.62 

.15 .49 

.13 .27 

55.66 54.71 

.051 .192 

43.59 42.75

[99.73] [100.03] 

0.0.99 1.1.97 

Calcite Calcite

1.18 

.75 

.20 

54.83 

.130 

43.01

[100.10] 

0.2,97 

Calcite

781

46F228-52

1.38 

.82 

.41 

54.39 

.112 

43.17

[100.28] 

0.2,98 

Calcite

782

46F.28-124

0.23 

.14 

.10 

55.86 

.029 

43.79

[100.15] 

0.0.99 

Calcite

783 784 785

46F228-168 46F228- 173 46F.28- 146

0.38 0.22 

.19 .09 

. 19 .26 

55.62 55.60 

.001 .037 

43.19 43.80

[99.57] [100.01] 

0.1,98 0.0.99 

Calcite Calcite

1.35 

.43 

.23 

54.65 

.048 

42.86

'[99.57] 

1,1.97 

Calcite

786

46F228-166

0.72 

.19 

.12 

55.53 

.080 

43.43

[100.07] 

0,1,99 

Calcite

'R.O..

'Calculated from reported MgCOg and(or) CaCOg. 

'sample dried at llOe-112«C; ignition loss 1,000°-1,100<>C. 

4 CO,, calculated from reported MgCO, and CaCOj.

' NajO = 260 ppm. K,O = 560 ppm. TiO, = 325 ppm, S = 180 ppm.

*Na_O = 270ppm, K,O = 530ppm. TiO, =<30ppm, S =60ppm.

7 With sample 293,group Flt Na,O =270ppm.K,O = 610ppm, TiO, =<30ppm. S = 70ppm.

'With sample 295. group FL Na_O = 100ppm. K,O = 560ppm. TiO, = 250ppm, S = 470ppm.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: Li2O,BeO,B,O,,K,O,Sc,O,,CoO,ZnO,Ga.O1 ,GeOj,A$2O,,Y1Oj.ZrO,.NbtOg,MoO1 ,Ag.O,Ru,Rh,Pd,CdO, 

Iii,Og,SnO,,Sb,Og,BaO,TeO.,Cs2O,U.Oj,CeCfc,Pr.O,,NdtOj,SinsO,,Eu.Oj^^ 

PbO,BitO..ThO..UO,]

Na_O

TiOj ___ .

V2 0S .

CrjOj .. .

MnO __________ .

NiO_-_ __ _ ____ .

CuO __________ .

SrO ___________ .

Na20___ __ .

TiO, .

v.o.

Cr20, .

MnO _________ .

NiO_ _________ .

CuO __________ .

SrO __________ .

NajO ________ .

TiO, _______ __.

749

_________ 0.021

_________ .00055

_________ .13

_________ .0029

_________ .018

763

_________ 0.022

_________ .0007

_________ .097

_________ .0024

_________ .017

775

_________ 0.0076

750

0.020

.0005

.14

.0033

.022

764

0.0044

.00064

.17

.0024

.017

. 776

0.018

751

.04

.0005

.11

.0022

.021

765

0.044

.0065

.16

.0018

.0047

.017

777

0.0076

752

0.037

.0028

.019

Art "I

.0018

.055

766

0.048

.0008

.17

.0019

.02

778

0.0056

753

0.062

.0041

.16

t\t\"tA

.0026

.025

767

0.11

.049

.003

.0022

.17

.001

.0016

.055

779

0.011

754

0.031

.0050

.40

.0031

.026

768

0.40

.16

.003

.0012

.43

.001

.0019

.015

780

0.019

755

0.012

.0025

.064

.0018

.0024

.026

769

0.05

.011

.003

.00089

.07

.0012

.036

781

0.042

756

0.0048

.0020

.09

..001

.0025

.022

770

0.036

.003

.00083

.80

.0019

.028

782

0.002

757

0.002

.0020

.032

.001

.0024

.015

771

0.013

.003

.002

.29

.0022

.034

783

758

0.094

.0044

.13

.0018

.0016

.031

772

0.041

.003

.0014

.023

.0020

.040

784

0.0032

761

0.024

.0005

.25

.0029

.021

773

0.025

.078

.001

.0031

785

0.0092

762

0.030

.00064

.11

.0040

.018

774

0.0044

.0005

.11

.0023

.02

786
ANALYSES OF SAMPLES 157

Spectrochemical analyses Continued

V,05 .

Cr,0, .

MnO __________ .

CuO __________ .

SrO __________ .

775

. ________ 0.0005

_________ .04

_________ .0011

_________ .02

776

0.0005

.22

.0017

.021

777

0.076

.0023

.035

778

0.016

.0017

.020

779

0.0005

.45

.0048

.013

780

0.0005

.14

.0025

.034

781

0.0007

.049

.0017

.024

782

0.0005

.09

.00094

.018

783

0.0005

.13

.00066

.015

784

0.0005

.032

.0013

.014

785

0.0005

.037

.0025

.035

786

0.00077

.025

.0017

.027

DESCRIPTIVE NOTES 

{Underscored page numbers in reference indicate source of analysis]

749-751.

752.

Washington Continued

San Juan County Permiar<?). NWiSWi sec. 25, T. 36 N.. R. 4W., 

San Juan Island. Young Hill East deposit, Roche Harbor Lime and Cement 

Co. Analyst, under supervision of Mark Adams; Spectrochemical analyst, 

C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 84, 93, 95. 449. 460.) 

Limestone, light-gray, finely crystalline. Chip sample. Tonnage 

estimated. Index and geologic maps. Possible use: None, deposit 

small.

749. Sample SJ 65-1 taken across 75 ft.

750. Sample SJ 65-2 taken across 90 ft.

751. Sample SJ 65-3 taken across 100 ft. 

County, analysts, maps, and use as in samples 749-751. Permian.

NWiSWi sec. 24, T. 35 N., R. 4 W., San Juan Island. Deadman Bay 

deposit. Sample SJ 66-1. ( Danner, 1966, p. 16, 19, 82, 108, 114, 115. 

449, 460.) Limestone. Chip sample, composite. 

753-758. San Juan County. Permian. NEi sec. 23, NWi sec. 24, T. 35 N.,

R. 4 W., San Juan Island. Cowell quarries; owner, R. Brown. Analyst, 

under supervision of Mark Adams; Spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 108-110, 112, 113. 448. 456.) Chip 

sample. Tonnage estimated. Index and geologic maps. Former use: 

Cement, lime, road metal, pulp and paper industry. 

753 - 755. Limestone, bine-gray, dense to crystalline; contains chert 

or jasperoid stringers.

753. Sample SJ 7-1 taken across 160 ft.

754. Sample SJ 7-2 taken across 160 ft.

755. Sample SJ 7-3 taken across 120 ft.

756-758. Limestone, light-gray, finely crystalline; contains chert or 

jasperoid.

756. Sample SJ 7-4 taken across 160 ft.

757. Sample SJ 7-5 taken across 280 ft.

758. Sample SJ 7-6 taken across 200 ft.

759, 760. County, age, locality, and use as in samples 753-758. ( Danner, 1966, 

p. 108-110, 112,113.) Tonnage estimated. Index and geologic maps.

759. ( Hodge, 1935a, p. 113; Hodge, 1938b, p. 12, 13,^5, 16.) 

Limestone.

760. Limestone, light-gray, finely crystalline; contains chert or

jasperoid. Composite chip sample. 

761 - 763. County, age, analysts, and maps as in samples 753-758. NE4 sec. 18,

T. 36 N., R. 3 W., San Juan Island. Limestone Point quarry, abandoned. 

( Danner. 1966, p. 16, 19, 82, 94, 119, 120, 121. 449, 458, 459.) 

Limestone, gray, fossiliferous; beds range from 1 in. to several feet in 

thickness. Thin-section description. Chip sample. Former use: Lime.

761. Sample SJ 43-1 taken across 55 ft.

762. Sample SJ 43-2 taken across 130 ft.

763. Sample SJ 61-3 taken across 50 ft.

San Juan County. Middle Permian. NEi SEi sec. 34, T. 36 N., R. 4W., 

San Juan Island. Mite hell Bay quarry, abandoned. Analyst, under supervision of Mark Adams; Spectrochemical analyst, C. E. Harvey. Sample 

SJ 45-1. ( Danner, 1966, p. 16, 19, 82, 108, 118, 119, 449, 459.) 

Limestone, light-gray to buff, finely crystalline. Chip sample taken 

across 150ft. Index and geologic maps. Possible use: None, deposit 

depleted.

County, age, analysts, and maps as in sample 764. SWi sec. 14, T. 37 N., 

R. 2 W., Orcas Island. Double Hill deposit. Sample SJ 10-1. ( Danner, 

1966, p. 16, 19, 82, 141. 152. 155, ^56, 448. 457.) Magnesian limestone, light-gray to blue-gray and buff, crystalline; contains calcite 

veinlets, jasperoid. Thin-section description. Chip sample taken across 

35 ft. Possible use: None, deposit small and impure.

County, analysts, and maps as in sample 764. Permian. SE*NW* sec. 22, 

T. 37 N., R. 2 W., Orcas Island. Fowler deposit. Sample SJ 25-1. 

( Danner, 1966, p. 16, 19, 82, 141, 164, 166, 448. 457.) Limestone, 

light-gray-blue, dense to crystalline, fossiliferous; weathers gray. Chip 

sample taken across 21 ft. 

767- 769. County, analysts, and maps as in sample 764. Permian. NWi NWi

sec. 23, T. 37 N.. R. 2 W., Orcas Island, about 1 mile southwest of 

town of East Sound. Judd Cove deposit. ( Danner, 1966, p. 16, 19, 82, 

141, 166, 167. 168. 448. 457.) Limestone, dark-gray to light-gray, 

dense to crystalline, carbonaceous, argillaceous; weathers light gray or 

buff; contains jasperoid. Chip sample. Possible use: None, deposit 

small and impure.

764.

765.

766.

Washington Continued

767. Sample SJ 27-2 taken across 10 ft.

768. Sample SJ 27-3 taken across 40 ft.

769. Sample SJ 27-4 taken across 15 ft. 

770-772. County, analysts, and maps as in sample 764. Late Permian. NWi

sec. 23, T. 37 N., R. 2 W., Orcas Island, about 1 mile south of town of 

East Sound. Camp Indralaya deposit. C Danner, 1966, p. 16, 19, 82, 

169-171, 448, 457.) Limestone, gray,dense to crystalline, fossiliferous; 

weathers light buff. Chip sample. Possible use: None, deposit small.

770. Sample SJ 30-1 taken across 30 ft.

771. Sample SJ 30-2 taken across 35 ft.

772. Sample SJ 30-3 taken across 17 ft. 

773. County, analysts, and maps as in sample 764. Early Permiarf ?). SWi

sec. 23, T. 37 N., R. 1 W., Orcas Island. Chuckannt Lime Co. quarry, 

abandoned. Sample SJ 87-1. ( Danner, 1966, p. 16, 19. 82, 141, 207, 

208, 450, 461.) Limestone, light-brownish-gray, dense to clastic; 

partly recrystallized. Thin-section description. Chip sample taken 

across 25 ft. Former use: Lime. Possible use: None, deposit largely 

depleted.

774-778. San Juan County. Paleozoic, probably Permian. NEi sec. 9, T. 36 N., 

R. 2 W., Orcas Island. West Sound deposit, Everett Lime Co. Analyst, 

under supervision of Mark Adams; Spectrochemical analyst, C. E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 141, 148-150, 151. 448. 449, 458.) 

Limestone, gray, finely crystalline. Chip sample. Tonnage estimated. 

Index and geologic maps. Former use: Pulp and paper industry. Possible 

use: None, deposit depleted.

774. Sample SJ 36-1 taken across 60 ft.

775. Sample SJ 36-2 taken across 130 ft.

776. Sample SJ 36-3 taken across 50 ft.

777. Sample SJ 36-4 taken across 60 ft.

778. Sample SJ 36-5 taken across 80 ft.

779, 780. County, age, analysts, and maps as in samples 774-778. NWjSEj sec. 3, 

T. 36 N., R. 2 W., Orcas Island. Pineodeposit. ( Danner, 1966, 

p. 16, 19, 82, 141, 172, 175, 177. 448. 458.) Possible use: None, 

deposit small.

779. Sample SJ 32-6. Limestone, blue-gray, dense to crystalline; 

taken across 38 ft. Thin-section description. Chip sample.

780. Sample SJ 32-7. Limestone, bluish-gray, mostly crystalline; 

taken across 20 ft. Chip sample.

781. County, age, analysts, and maps as in samples 774-778. SWiNEj sec. 22, 

T. 37 N., R. 2 W., Orcas Island, about 1.5 miles south of town of 

East Sound. Fowler deposit. Sample SJ 24-1. (Danner, 1966, p. 16, 

19, 82. 141, J.64, 165, 448, 457.) Limestone, white to dark-gray-blue, 

crystalline, massive. Chip sample taken across 70 ft. Tonnage estimated. Possible use: None, deposit small.

782. San Juan County. Permiar*?). Either NWi sec. 30 or SWi sec. 19. 

T. 36 N., R. 2 W., Crane Island. Analyst, under supervision of 

Mark Adams; Spectrochemical analyst, C. E. Harvey. Sample SJ 35-1. 

(Danner. 1966, p. 16, 19, 82. 135-237, 141, 448, 458.) Limestone, 

light-gray to brownish-gray, mostly crystalline; well bedded in layers 

1-3 in. thick. Thin-section description. Chip sample taken across 

75 ft. Tonnage estimated. Index and geologic maps. Possible use: 

None, deposit small.

783, 784. County, age, analysts, maps, and use as in sample 782. Nj sec. 25, 

T. 36 N., R. 3W., Cliff Island. (Danner, 1966, p. 16, 19, 82, 

134, 135, 141, 448, 458.) Limestone, light-gray, mostly crystalline; 

thin-section description. Chip sample. Former use: Pulp and paper 

industry.

783. Sample SJ 34-1 taken across 400 ft.

784. Sample SJ 34-2 taken across 500 ft.

785, 786. County, age, analysts, and maps as in sample 782. Sec. 29, T. 36 N., 

R. 3 W., San Juan Island. (Danner, 1966, p. 16, 19, 82, 94, 449.) 

Tonnage estimated. Former use: Pulp and paper industry.

785. NW*NWa sec. 29. Rocky Bay quarries. Sample SJ 63-1.

( Danner, 1966, p. 99, 100, 459.) Limestone, bluish-gray, 

crystalline; interbedded with argillite. Chip sample taken 

across 225 ft.

786. Wilson quarry; owner, B. Haffner. Sample SJ 41-1. (Danner, 

1966, p. 96, JJ7, 458.) Limestone, light-gray, crystalline. 

Chip sample taken across 50 ft.

487-187 O - 73 - 11
158 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

Washington Continued

SiO, __ __

R.O, 

MgQ ______

CaO ______

NafO + KfO _

P,0S 

Ignition loss 

Total 

Class _____

CaO/MgO _

787

46F, 

28-136

______ 3.02

______ .49

____ _ .29

__ __ 53.87

______ .036

______ *42.47

______ [100.18]

______ 2.1.96

_____ Calcite

788

46F, 

28-149

1.52 

.15 

.11 

54.75

.048 

*42.61

[99.19] 

1.0.97

Calcite

789

46Fj 

28-167

0.40 

.43 

4.39 

50.48

.010 

*44.16

[99.87] 

0.1,99

Magnesian 

calcite

790 791 792

46F, 46F, 46Fj 

28-102 28-2 28-1

1.77 1.61 1.14 

.58 '.04 ______

.20 _____ f.15

54.50 *54.59 *54.47 

_____ '.51 *1.21

.130 _____ ______

4 42.50 '42.86 *42.92

[99.68] '[99.61] [99.89] 

1.2,96 2,0.97 1,0,98

Calcite Calcite Calcite

793

46F, 

28-161

0.61 

.96 

.34 

54.87

.100 

*43.00

[99.88] 

0,1.97

Calcite

794

46F, 

28-158

0.80 

.71 

.66 

53.94

.080 

*43.32

[99.51] 

0.2,98

Calcite

795

46F, 

28-183

1.75 

1.87 

6.30 

46.71

.220 

*43.11

[99.96] 

0.3.95

Magnesian 

calcite

796

46F, 

28-184

0.27 

.40 

.27 

54.95

.070 

4 43.61

[99.57] 

0.1.99

Calcite

797

46F, 

28-185

0.77 

1.27 

.95 

53.84

.150 

4 42.92

[99.90] 

0.1.97

Calcite

798

46F, 

28-77

5.99 

1.53 

.36 

51.10

.033 

4 40.63

[99.64] 

3,4.91

Calcite

799

46F, 

28-103

4.72 

.96 

.18 

52.49

.236 

4 40.97

[99.56] 

3,3.93

Calcite

Washington Continued

SiO, __ __

R.O, _____

MgQ ______

CaO ______

P.O, _____

Ignition loss

Total 

Class _____

CaO/MgO _

800

46F, 

28-105

______ 0.86

______ .32

______ .31

______ 54.73

______ .012

______ 4 43.30

______ [99.53]

______ 0.1.98

______ Calcite

801

46F, 

28-106

0.41 

.30 

.33 

55.06 

.018 

*43.41

[99.53] 

0,1.98

Calcite

802

46F, 

28-189

1.19 

.50 

.20 

55.13 

.039 

*42.90

[99.96] 

0.1,97

Calcite

803 804 805

46F, 46F, 46F, 

28-107 28-104 28-20

0.87 4.14 1.32 

.26 1.21 T .40 

.38 8.06 '.56 

54.77 44.29 *53.97 

.015 .027 ______

4 43.24 4 42.58 *42.99

[99.54] [100.31] 99.24 

0,1.98 2,4,93 1,0.98

Calcite Ma^esian Calcite calcite

806

46F, 

28-109

0.50 

.65 

2.24 

53.02 

.170 

4 43.41

[99.99] 

0,1.98

Magnesian 

calcite

807

46F, 

28-108

0.27 

.16 

.33 

55.44 

.107 

4 43.73

[100.04] 

0.0.99

Calcite

808

46F, 

28-98

0.84 

.42 

.40 

55.10 

.240 

4 42.86

[99.86] 

0,1,97

Calcite

809

46F,

28-99

0.86 

.33 

.35 

55.12 

.100 

4 43.34

[100.10] 

0.1,98

Calcite

810

46F, 

28-100

1.34 

.70 

.44 

54.43 

.160 

4 42.89

[99.96] 

0,2.97

Calcite

811

46F, 

28-86

0.90 

.74 

.16 

52.53 

.027 

4 41.38

[95.74] 

0.2,94

Calcite

812

46F, 

28-88

1.28 

.39 

.14 

54.79 

.008 

4 42.93

[99.54] 

1,1.97

Calcite

Washington Continued

SiO, __ ___

R.O, _____

MgQ. _____

CaO ______

P,05 

Ignition loss

Total

Class _____

CaO/MgO _

813

46F, 

28-89

4.30 

.67 

2.36 

50.60 

.013 

4 42.02

[99.96] 

3,2,94

Magnesian 

calcite

814

46F, 

28-7

0.43 

.13 

.20 

55.16 

.008 

4 43.45

[99.38] 

0,0,99

Calcite

815 816 817

46F, 46F, 46F, 

28-17 28-22 28-23

0.18 1.99 3.37 

.61 .46 .52 

.25 .10 .28 

55.31 54.53 53.47 

.063 .064 .032 

*43.24 4 42.55 4 41.83

[99.65] [99.69] [99.50] 

0.0,98 1,1,96 2.2.95

Calcite Calcite Calcite

818

46F,

28-24

1.22 

.30 

.21 

54.80 

.068 

*42.82

[99.42] 

1.1.97

Calcite

See following page for footnotes. 

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: Li,O,BeO.B_O,,K_O,Sc_O,.V_O5 .CoO. 

In,O,.SnC^.Sb_O,.BaO l TeClj 1 Cs,O.U,O, > CeC^,Pr,C^,N<^O,.Sn^O,,Eu,O,,Gd,O,.Tb2O,,Dy.O,.HoiO,.ErtC)l 

PbO , Bi,O, . ThO, , UO,; sample 789 , V, Og = 0 . 003 percent; sample 798 , ZrO, = 0 . 002 percent ]

Na,0 _

TiO, ____ 

Cr.0, 

MnO _____

NiO _____

CuO _____

SrO ______

Ag,0 ____

Na,0_ ___ 

TiO, 

Cr,0, ____

MnO _____

NiQ ______

CuO _____

SrO ______

Ag.0 _____

Na,O ______

TiO, .

Cr,0, .

MnO ______

787 788

0.021 0.0056 

.00058 .0005 

.098 .045

.002 .0013 

.23 .025

803 804

0.05 0.06 

.0092 .039 

.0049 .0012 

.028 .23 

.0014 .0026 

.0023 .0055 

.018 .048

818

. __ ___ 0.0064

. ______ .0005

. ______ .028

789

0.006 

.00055 

.009

.0010 

.015

806

0.0088 

.0005 

.14

.0030 

.022

819

0.002 

.0005 

.024

790

0.06 

.018 

.00077 

.045 

.002 

.0031 

.036

807

0.0036 

.0005 

.027

.0054 

.015 

.00033

820

0.075 

.020 

.00099 

.028

793 794 795

0.05 _____ ______

.013 0.015 0.071 

.00099 .00099 .0025 

.052 .052 .80

.0016 .0021 .0028 

.022 .014 .021

808 809 810

0.018 0.0088 0.026 

.0005 .0005 .0005 

.086 .04 .06

.0029 .0033 .0034 

.014 .024 .027 

.00055 .00071 .00033

822 823 824

_____ _____ 0.15

0.0056 0.039 .024 

.0010 .0007 .00058 

.008 .16 .02

796

0.0036 

.00093 

.25

.0017 

.067

811

0.008 

.00093 

.095

.0035 

.038

NiO _____

CuQ _____

Ag_0 

819

46Ft 

28-25

0.34 

.61 

.02 

55.31 

.193 

*43.33

[99.80] 

0.1,98

Calcite

820

46F, 

28-26

3.77. 

.97 

.22 

54.18 

.013 

*41.42

[100.57] 

2,3,94

Calcite

821

46F, 

28-10

'0.56 

*.27 

"Trace 

*55.52 

.02 

'43.63

100.00 

(0,1)99

Calcite

822

46F, 

28-159

0.86 

.25 

.12 

55.50 

.128 

4 42.96

[99.82] 

0.1.97

Calcite

823

46F, 

28-142

1.27 

.58 

.15 

54.57 

.051 

4 42.86

[99.48] 

0.2.97

Calcite

ZnO > Ga,O.,GeO,.As_O..Y.O.,ZrO.,NbjOB ,MoO,.Ru,Rh.Pd 

.TmtO..Yb,0,.Lu.O,.HfO,.Ta,Og.WO,.Re_07 .Os.Ir.Pt.Au.

797

0.012 

.0050 

1.00 

.0026 

.0026 

.056

812

0.026 

.0005 

.038 

.0018 

.0037 

.024

818

0.001 

.0023 

.052

798

0.05 

.14 

.00086 

.052 

.0028 

.0054 

.036

813

0.0088 

.0005 

.19

.0025 

.015

819

0.001 

.0031 

.018

799

0.026 

.00064 

.074 

.0016 

.0029 

.052

814

0.0048 

.0005 

.024

.0025 

.025

820

0.001 

.0025 

.038

800

0.006 

.0005 

.03

.0014 

.027

815

0.008 

.0005 

.017

.0012 

.024

822

0.0021 

.021

801

0.006 

.0005 

.024

.0021 

.024

816

0.0072 

.0005 

.027 

.001 

.0020 

.029

823

0.0024 

.021

824

46F, 

28-127

5.38 

.41 

.19 

52.67 

.045 

4 40.95

[99.64] 

5.1,93

Calcite

.CdO, 

T1.0,.

802

0.024 

.0019 

.075 

.0014 

.0014 

.025

817

0.0096 

.0005 

.10 

.001 

.0031 

.028

824

0.0024 

.035
ANALYSES OF SAMPLES 159

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

805.

806.

807.

808-810.

787-789. San Juan County. Permiaii?). Sec. 34, T. 36 N., R. 3 W., San Juan 

Island, 3.7 miles by road from town of Friday Harbor. Eureka deposit. 

Analyst, under supervision of Mark Adams; specuochemical analyst, 

C. E. Harvey. ( Danner, 1966. p. 16, 19, 82. 94, 102-.106, 449. 458.) 

Limestone, light-blue-gray, mostly crystalline. Chip sample. Tonnage 

estimated. Index and geologic maps. Former use: Lime. Possible use: 

None, deposit small.

787. SEi sec. 34, abandoned quarry. Sample SJ 44-1 taken across 40 ft.

788. SEi sec. 34. Sample SJ 44-2 taken across 20 ft.

789. Sj sec. 34. Sample SJ 1-1 taken across 50 ft.

790. San Juan County. Mississippian and Permiaii ?). SEi sec. 25, T. 37 N., 

R. 2 W., Orcas Island, about 2.5 miles southeast of town of East Sound. 

Langdon deposit. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample SJ 68-2. ( Danner, 1966, 

p. 16, 19, 82. 141, 191, 193. 450, 460.) Limestone, light-gray to 

bluish-gray, crystalline. Thin-section description. Chip sample, composite. Tonnage estimated. Index and geologic maps. Former use: Flux.

791. San Juan County. Probably Carboniferous. [T. 37 N., R. 2 W.], west 

shore of Orcas Island. Roche Harbor Lime and Cement Co., Red Cross 

deposit. Analyst, A. H. Cederberg. ( Landes, 1905 [1906], p. 377, 

378; Hodge, 1935c, p. 66. j>7; Hodge. 1938b. p. 12, 13, 16, 16.) 

General: Limestone, mostly white to bluish-gray, recrystallized; 

streaked with irregular black veinlets. Tonnage estimated. General use: 

Cement, flux, pulp and paper industry, lime.

792. San Juan County. Pre-Cretaceous. [T. 37 N., R. 2 W.], northwest shore 

of Orcas Island. Analyst, A. H. Cederberg. ( Landes, 1905 [1906]. 

p. 377, 378.) Limestone, entirely crystalline. Use: Lime. Possible use: 

Cement.

793. 794. San Juan County. T. 35 N., R. 3 W., San Juan Island, Hannah area. 

Analyse, under supervision of Mark Adams; specuochemical analyst, 

C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 107-^09, 447, 456.) 

Chip sample. Index and geologic maps.

793. SEiSWi sec. 19. Sample SJ 4-1. Limestone, gray, crystalline; 

contains interbedded carbonaceous material; taken across 6 ft.

794. Ni NEi sec. 30. Sample SJ 4-2. Limestone, taken across 65 ft. 

795 San Juan County. SEi SWi sec. 11. T. 35N., R. 4 W., San Juan Island, 

Smallpox Bay. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Sample SJ 6-1 ( Danner, 1966, p. 16, 

19. 82, 108, 115, ^16, 448, 456.) Limestone, light-gray, finely crystalline Chip sample taken across 40 ft. Index and geologic maps. 

Possible use: None, deposit small.

796,797. San Juan County. T. 35 N.. R. 4 W., San Juan Island. Lawson Cave 

deposit. Analyst, under supervision of Mark Adams; specuochemical 

analyst, C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 108, 116. 117. 

447, 448, 456.) Limestone, finely crystalline. Chip sample. Index and 

geologic maps. Tonnage estimated. Possible use: Probably none.

796. NWisWi sec. 13. Sample SJ 5-1. Limestone, gray to white; 

composite.

797. NEi SEi sec. 14. Sample SJ 5-2. Limestone, light-gray; taken

across 30 ft.

798- 799. San Juan County. T. 36 N., R. 1 W., Orcas Island. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Samples 

SJ 72-1, SJ 70-1. ( Danner, 1966, p. 16, 19, 82, 141, 193-196, 450. 

460.) Index and geologic maps. Possible use: None, deposit small and 

impure.

798. SWi sec. 5, Rosario deposit. Limestone, dark-gray, finely crystalline; argillaceous interbeds. Chip sample taken across 90 ft.

799. NE*NEj sec. 6, Entrance Mountain deposit. Limestone, white to

light-gray, crystalline; contains black carbonaceous stringers.

Chip sample taken across 100 ft.

800-803. San Juan County. NWi sec. 8. T. 36 N . R. 1 W., Orcas Island, near 

townofOlga. Newhall deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, 

p. 16, 19. 82, 141. 194, 195. 450, 460.) Limestone, gray, coarsely 

crystalline, contains calcite veinlets. Chip sample. Index and geologic 

maps. Former use: Lime. Possible use: None, deposit small.

800. Sample SJ 71-1 taken across 180 ft.

801. Sample SJ 71-2 taken across 110 ft.

802. Sample SJ 71-3 taken across 15 ft; part may be talus material.

803. Sample SJ 71-4, composite.

804. County and analysts as in samples 800-803. SWi sec. 8, T. 36 N., R. 1 W., 

Orcas Island. Olg a deposit. Sample SJ 69-1. (Danner, 1966, p. 16, 19,

Footnotes of analyses on preceding page:

1 Iron and aluminum oxides. 4 Sample dried at 110°-1120C; ignition loss

'Calculated from reported MgCOj and (or) CaCOs. 1,000°-1,100°C.

Alkalies, and so forth. 5 COj. calculated from reported MgCOs and (or) CaCOj.

W ashing ton Continued

82, 141, 194, 450, 460.) Limestone, gray, crystalline. Chip sample, 

composite. Index and geologic maps. Possible use: None, deposit small.

San Juan County. Olga, Queen Brick and Lime Co. (Burchard, 1912, 

p. (i94, pi. 1.) Limestone. Index map.

San Juan County. NEi SEi sec. 3, T. 36 N., R. 2W., Orcas Island. Pineo 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample SJ 32-5. ( Danner, 1966, p. 16, 19, 82, 

141, 172,^74, 448. 458.) Limestone, blue-gray, crystalline. Chip 

sample, composite. Index and geologic maps. Possible use: None, 

deposit small.

County, locality, analysts, reference, maps, and use as in sample 806. 

Sample SJ 32-4. Limestone, white to light-gray, crystalline; occurs as 

float. Chip sample, composite.

County, locality [except quarter section] , analysts, and maps as in sample 

806. Ei sec. 3, near abandoned quarries. ( Danner, 1966, p. 16, 19, 

82, 141, 172. ITS. 448, 457.) Limestone, gray, mostly crystalline. 

Thin-section description. Chip sample. Tonnage estimated. Former 

use: Pulp and paper industry.

808. Sample SJ 32-1 taken across 50 ft.

809. Sample SJ 32-2 taken across 55 ft.

810. Sample SJ 32-3 taken across 90 ft.

811 - 816. San Juan County. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19. 82, 141.) 

Index and geologic maps. Possible use: None, deposit small.

811. West part SEi sec. 13, T. 36 N., R. 2 W., Orcas Island,

2.75 miles by road east of Orcas Landing. Killebrew Lake 

deposit. Sample SJ 48-1. (Danner, 1966, p. 179. 180, 

449, 459.) Limestone, bluish-gray, finely crystalline; contains calcite veinlets. Chip sample, composite.

812. SEi sec. 17. T. 36 N., R. 2 W., Orcas Island, about 2 miles 

southwest of town of West Sound. Caldwell Point deposit. 

Sample SJ 73-1. ( Danner, 1966, p. 181, 182, 450. 460.) 

Limestone, gray, crystalline. Chip sample taken across 

30ft.

813. SWiNEi sec. 18, T. 36 N., R. 2 W., Orcas Island, about

0.5 mile south of town of Deer Harbor. Deer Harbor deposit. 

Sample SJ 74-1. ( Danner, 1966, p. 182, 183. 450, 460.) 

Limestone, dense to crystalline; weathers light gray; contains calcite veinlets, carbonaceous and cherty layers. 

Chip sample taken across 50 ft.

814, 815. SEi NWi sec. 29, T. 36 N., R. 2 W., Shaw Island. Yansen 

deposit. Samples SJ 82-1, SJ 82-2. ( Danner, 1966, 

p. 137, 138, 450, 461.) Limestone, light-gray to bluishgray, crystalline. Chip sample, composite. Tonnage 

estimated. 

816. NWisWi sec. 29, T.36N., R. 2 W., Shaw Island. Biendle

deposit. SampleSJ83-l. ( Danner, 1966, p. 138, 139. 450, 

461.) Limestone, gray, crystalline. Chip sample, composite. 

817. County, analysts, reference, and maps as in samples 811-816. NEi

sec. 30, T. 36 N., R. 2 W., Shaw Island. Lutz quarry, abandoned. 

Sample SJ 84-1. ( Danner, 1966, p. 139, 140, 450. 461.) Limestone, 

gray, crystalline. Chip sample taken across 100 ft. Former use: Pulp 

and paper industry. Possible use: None, deposit depleted. 

San Juan County. SEi SEi sec. 30 and NWi sec. 32. T. 36 N., R. 2W., 

west coast of Shaw Island. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 

140. 141. 450. 461.) Limestone, light-gray, crystalline. Chip sample. 

Index and geologic maps. Possible use: None, deposit small.

818. Sample SJ 85-1 taken across 30 ft.

819. Sample SJ 85-2, composite.

820. Sample SJ 91-1, composite.

San Juan County. [NWi T. 36N., R. 2W.], Deer Harbor. Henry 

Cowell Lime and Cement Co. Analyst, H. Byers. (Burchard, 1912, 

p. 694, pi. 1.) Limestone. Index map. 

822-824. San Juan County. SW* SW* sec. 29, T. 36 N., R. 3W.. San Juan Island.

Johnson quarries. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19. 82. 94, 98. 99, 

449, 458.) Limestone, light-blue-gray, mostly crystalline. Chip sample. 

Tonnage estimated. Index and geologic maps. Former use: Lime [ implied].

822. Sample SJ 42-1 taken across 10 ft.

823. Sample SJ 42-2 taken across 5 ft.

824. Sajnple SJ 42-3, composite.

818-820.

821.

*S, trace.

T FeO.

'insoluble in acid.

0 MgCOj.
160 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2 ), common-rock category Continued

Chemical analyses Continued

RjO, ___________

MgO ___ _ _____

CaO ___________

P.O.

Ignition loss ______

Total _____

Class ___________

CaO/MgO ______ ,

Si02 __________ .

A120, .

FejOj .

MgO ____ __ .

CaO _ ______ .

H2 0 _____ ___ .

P205 .

MnO _ _____ _

S

Total _ __ .

Class ______ __

CaO/MgO ________

SiO2 ___ _ ____

A1.0, __ _

Fe20, _ _

MgO _ _____ _

CaO

P.O

S ________ _

Ignition loss _ _____

Free C ______ _

Class _ __ _ _ _

CaO/MgO _______

Washington Continued

825 826 827 828 829 830 831 832 833 834 835 836 837

46F, 46F2 46F2 46F2 46FZ 46F2 46F2 46FZ 46F2 46F2 46F2 46F2 46F2 

28-126 28-138 28-68 28-69 28-70 28-71 28-72 28-73 28-74 28-13 28-60 28-62 28-61

4.25 2.03 3.29 2.85 1.59 4.39 1.37 3.23 1.79 4.28 0.81 2.06 6.30

.48 .38 1.02 1.38 .28 1.53 .45 .91 1.07 .96 .50 .74 .64

.21 .23 .16 .94 .17 .65 .36 .43 .91 .64 .19 .29 .15

52.87 54.14 53.03 52.69 54.85 52.10 54.58 53.06 53.55 52.36 54.90 53.88 51.80

.058 .072 .014 .020 .011 .180 .006 .007 .011 _____ .130 .043 .066

1 41.65 '42.79 1 41.91 '41.70 '42.71 '41.15 1 43.02 1 41.87 '42.61 42.00 1 43.15 '42.19 '40.47

_ [99.52] [99.64] [99.42] [99.58] [99.61] [100.00] [99.79] [99.51] [99.94] 100.24 [99.68] [99.20] [99.43]

3,1.94 1,1,97 2,3,95 1.4,94 1,1,97 2,4,92 1,1.97 2,3,95 0.3,96 3.3,94 0,1,98 1,2,95 5,2,92

Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite

Washington Continued

838 839 840 841 842 843 844 845 846 847 848 849 850

46F, 46F2 46F, 46F, 46FZ 46FZ 46F2 46F2 46F2 46F2 46F2 46Ft 46F2 

28-63 28-15 28-186 28-49 28-47 28-94 28-117 28-118 28-18 28-21 29-43 29-98 29-99

1.19 0.80 6.78 6 84 1 10 1.48 0 84 2.54 1.64 0.04 1.0 2.74 2.80

" 1 *.37 '.60 *1.78 *.60 *.50 *.92 *.41 2 .50 { 7 '° 1 2 .73 *.39

.08 .40 .57 .24 .13 .30 .10 .52 .39 _____ .1 .27 .18

55.17 54.32 50.35 51.27 54.85 54.40 54.94 53.47 54.43 3 55.02 55.5 53.66 53.96

.73 _ _ _ ______

.004 _ .004 .013 .041 .210 .180 .120 _____ 3 .02 3 < .01 .003 .005

4 1.01 __ _____

__ _____ _____ ___ .011 _ ___ _ ____

'43.05 '40.19 '40.97 '43.30 '42.22 '42.93 '42.45 43.30 5 43.19 43.1 '42.48 '42.31

._ [99.86] [56.12] [99.67] [99.93] [99.92] [99.53] 6 [99.40] 6 [99.60] 99.82 100.01 7 [99.8] [99.88] [99.64]

1.1,98 0,1,98 4,5,90 6,2,92 0,1,98 0,3,95 0,1.97 2.1,96 2.0,98 0,1,98 1,0,98 2,2,96 2,1,96

Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite

Washington Continued

851 852 853 854 855 856 857 858 859 860 861 862 863

46Ft 46F2 46F2 46F2 46F2 46F2 46F2 46F2 46F2 46F2 46F2 46F2 46Ft 

29-116 29-117 29-118 29-100 29-47 29-48 29-49 29-50 29-51 29-44 29-120 29-119 29-52

4.40 4.97 1.59 4.22 0.78 1.1 1.4 0.6 0.6 0.7 3.18 1.59 1.8

_ ) 2 ( .1 .1 .0 .0 .0 1 2 * 39 ( - 1

_ _____ ____ ____ j 65 " 72 i .1 .1 .1 .1 .1 j <82 ' M I .2

_ _ _____ _ __ .14 Trace .0 .1 .1 .1 .1 .18 .14 .1

3 53.33 352.83 855.1 54.18 54.95 55.1 55.1 55.3 55.1 55.5 53.36 54.86 54.7

_ .005 3 <c.01 3 <.01 3 <.01 3 <.01 3 <.01 .008 .001 3 <c.01

_ _ __ ___ ___ _ _ .010 .004 .003 .013 .005 ___ _ _____ .003

5 41.86 5 41.47 S43.2 '41.69 43.50 43.1 43.0 43.4 43.4 43.3 '41.85 '42.76 42.7

_ _____ _____ ___ _ ___ _ _ _ _____ .03 .03 .03 .03 _____ _ _____

[99.59] [99.27] [99.9] [100.88] 99.95 7 [99.5] 7 [99.8] 7 [99.5] 7 [99.3] '[99.7] [99.40] [99.74] [99.6]

4,0,95 5,0.94 2,0,98 3,2,94 0,1,98 1.1,98 1,1,98 0,0,99 0,0,99 1,0,98 2.2,95 1.1,97 1,1,97

Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite

See following page for footnotes. 

Spectrocheinical analyses 

[ The metallic elements not detected in the spectiochemical analysis: LijO.BeO.BjOs.ScjOs.CoO.ZnO.GazOj.GeOz.AszOa.YzOj.ZrOz.NbzOs.MoOs.Ru.Rh.Pd.CdO.^Oj.SnO,,

Sb2C^.TeC^.Cs2O.La2O3,CeC^.ft2Oj.Nd2O3.Sm2O3,Eu2Oj,Gd2Oj,Tb2O3 .Dy2Oj.Ho^ 

UOj; sample 830. PbO = 0.023 percent]

Nap _ _ 

Ti02 _____ ___

V205 ______ ___

Cr2O3

MnO

NiO

CuO

SrO

BaO

~Na_6~ __1T___ __

TiO2

V205 ___ _ ___ _

Cr20, ____ _ ___

MnO

CuO

SrO

89S S9fi 891 89.8 829 830 831 832 833 835 836 SJ7

.010 .0084 0.027 0.029 0.012 .051 0.0088 .052 0.026 0.018 0.014 0.0048

.0053 .0053 .0053 .0053 .0048 .0059 .005 _

0005 .0005 .0016 .0005 .0005 .0005 .0005 .00083 .0005 .0005 .00077 .00054

.22 .085 .032 .08 .045 .48 .072 .062 .067 .072 .11 .078

0012 .0012 .0012 .001 .001 .001 .001 .001 .001 .001

.0019 .0016 .0043 .0029 .0016 .0027 .0028 .0033 .0023 .0028 .0024 .0033

.014 .014 .064 .013 .014 .Oil .011 .Oil .028 .034 .027 .028

15 _ .36 .43

83~8 840 841 842 843 844 845 849 850 854 861 862

-------- 0.075 ___ _ 0.20 0.15

0.0056 0.031 0.016 0.0096 0.031 0.0068 0.032 .0092 0.008 .030 .016 0.0052

.003 _____ ___ __ ______ - 

.0005 .0029 .0005 .00096 _ ______

.031 .09 .20 .80 .24 .062 .06 .09 .03 .027 .042 .09

.001 .0014 ___ .001 .001 .001 ______

0036 .0024 .0025 .0025 .0019 .0024 .0025 .00082 .00082 .00099 .00066 .0006

013 .011 .0089 .024 .031 .033 .0083 .0098 .0098 .013 .009

Ag20_ _ ____ _ __ __ __ _ _ ______
ANALYSES OF SAMPLES 161

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Washington Continued Washington Continued

843. NW^SEi sec. 22. Fowler deposit. Sample SJ 31-1. ( Danner,

1966, p. 164, 169.) Limestone, white to light-gray, crystalline. 

Chip sample, composite. Possible use: None, deposit small.

825, 826. San Juan County. Southwest corner sec. 15, T. 36 N., R. 4W., Henry 

Island. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. (Danner, 1966. p. 16, 19, 82, 84, 127, 128, 

449, 459.) Limestone, dark-gray, finely crystalline; weathers light gray. 

Chip sample. Tonnage estimated. Index and geologic maps.

825. Sample SJ 58-1 taken across 100 ft.

826. Sample SJ 58-2 taken across 75 ft. Average of two determinations.

827. San Juan County. NEi sec. 17, T. 37 N., R. 1W., Orcas Island. Racoon 

Point deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample SJ 78-1. ( Danner, 1966, p. 16, 19, 82, 

141, 199, 200, 450, 461.) Limestone, brownish-gray, sugary-crystalline, 

bed 10-20 ft thick; contains small lenses of argillaceous rock. Chip 

sample taken across 20 ft. Index and geologic maps. Possible use: None, 

deposit small.

828-833. San Juan County. North-central part of sec. 19, T. 37 N., R. 1 W., Orcas 

Island, about 3 miles by road from town of East Sound. Payton deposit. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 141, 200-202, 450. 461.) 

Limestone, gray, crystalline; contains calcite veinlets. Chip sample. 

Index and geologic maps. Use: Quarried, use not stated. Possible use: 

Probably none [implied].

828. Sample SJ 79-1 taken across 225 ft.

829. Sample SJ 79-2 taken across 225 ft.

830. Sample SJ 79-3 taken across 200 ft.

831. Sample SJ 79-4 taken across 90 ft.

832. Sample SJ 79-5, composite.

833. Sample SJ 79-6 taken across 35 ft.

834. San Juan County. Sec. 19, T. 37 N., R. 1 W., Orcas Island, East Sound. 

Mount Constitution Lime Co. Analyst, A. A. Hammer. Sample 101. 

( Shedd, 1913. p. 204, 205. 206, 247. pi. 21.) Limestone, massive, 

crystalline; 25-40 ft thick. Index map. Use: Lime. Possible use: 

Portland cement.

835-837. San Juan County. Sec. 30, T. 37 N., R. 1 W., Orcas Island, about 3.5 

miles by road from East Sound. Flaherty deposit or quarry. Analyst, 

under supervision of Mark Adams; spectrochemical analyst, C.E. Harvey. 

( Danner, 1966, p. 16, 19, 82, 141, 204-206. 450, 461.) Index and 

geologic maps. Possible use: None, deposit small or depleted.

835. SWiNWi sec. 30. Sample SJ 81-1. Limestone, gray to white, 

crystalline. Chip sample, composite.

836. About SEiNWi sec. 30. Sample SJ 89-1. Limestone, light-gray, 

crystalline to dense. Chip sample taken across 70 ft.

837. SWi sec. 30. Sample SJ 88-1. Limestone, blue-gray, crystalline. 

Chip sample taken across 120 ft.

838. San Juan County. NWiNWi sec. 31, T. 37 N., R. 1 E., Orcas Island. 

Lawrence Point deposit. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample SJ 86-1. ( Danner, 1966, 

p. 16, 19, 141. 206, 207, 450. 461.) Limestone, light-gray, crystalline; 

contains stringers of black carbonaceous material and calcite veinlets. 

Chip sample, composite. Tonnage estimated. Index and geologic maps. 

Possible use: None, deposit small.

839. San Juan County. [About T. 37 N., R. 1 W., unsurveyed], Orcas Island. 

( Hodge, 1944, p. 15. pi. 6.) Limestone, selected sample. Tonnage 

estimated. Index map.

840-843. San Juan County. T. 37 N., R. 2 W., Orcas Island. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 

1966, p. 16, 19, 82, 141, 448. 457.) Index and geologic maps.

840. Sec. 14, near head of East Sound. Sample SJ 20-1, Limestone.- 

Chip sample.

841. SEiSEi sec. 15, about 0.80 mile southwest of East Sound. Langell 

deposit. Sample SJ 14-1. (Danner, 1966, p. 152, 159, 160, 

161.) Limestone, blue-gray to white, finely crystalline to dense; 

weathers white; contains argillaceous and cherty material. Chip 

sample taken across 70 ft. Thin-section description. Possible 

use: None, deposit small.

842. SWiSEi sec. 15. Rusch deposit. Sample SJ 11-1. (Danner, 1966. 

p. 152, 158, 159.) Limestone, light-gray, crystalline. Chip 

sample taken across 70 ft. Tonnage estimated. Possible use: 

None, deposit small. 

Footnotes of analyses on preceding page:

'Sample dried at lll/> -1120C; Calculated from reported CaCOj or P. 

ignition loss 1.000°-1,100°C. * Reported as manganese.

RjOj. SCOj, calculated from reported CaCOj

844, 845. San Juan County. NEi sec. 25, T. 37 N., R. 2 W., Orcas Island. Langdon 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 141, 190, 191, 

450,460.) Limestone, gray, crystalline. Chip sample. Index and 

geologic maps. Former use: Lime. Possible use: None, deposit small.

844. Sample SJ 67-1 taken across 185 ft.

845. Sample SJ 67-2 taken across 200 ft.

846. San Juan County. Sec. 25, T. 37 N., R. 2 W., Orcas Island, about 2.5

miles from East Sound. Analyst, A. A. Hammer. Sample 100. ( Shedd, 

1913, p. 204, 205, 206, 247, pi. 21.) Limestone, massive, crystalline; 

75 ft thick. Index map. Use: Flux. Possible use: Portland cement.

856

861-

847. San Juan County. [Tps. 34-38 N., Rs. 1-4 W.] Tacoma and Roche Harbor 

Lime Co. Analyst, G. A. Bethune. (Bethune, 1891, p. _101.) Limestone. Possible use: Lime.

848. Skagit County. Silurian and Devonian part of Chilliwack Group. SEiSEi 

sec. 23, T. 35 N., R. 9 E., about 1 mile from town of Rockport. North 

Rockport deposit. Analysts, K. S. Johnson, Anthony Centenero. ( Popoff, 

1948, p. 2, 6, 7, 9, 11, 13, figs. 1, 3, 4; Danner, 1966. p. 82, 269, 

289-292, 293, 294.) General: Limestone, white to dark-gray, mediumor coarse-grained, massive, uniform texture. Channel sample taken 

across 40.0 ft. Tonnage estimated. Index and geologic maps. Possible1 

use: Agricultural, cement.

)- 854. County, age, formation, maps, and use as in sample 848. T. 35 N.,

R. 9 E., North Rockport deposit. ( Danner, 1966, p. 16, 19, 82, 269, 

289^292, 293, 294, 451, 462.) Limestone, light- to dark-gray, finely 

crystalline, massive to poorly bedded. Tonnage estimated.

849. SEi sec. 23. Analyst, Mark Adams; spectrochemical analyst,

C. E. Harvey. Sample StlO-1. Chip sample taken across 350 ft.

850. SEj sec. 23, NEi sec. 26. Analyst, Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample St 8-2. Chip sample taken 

across 750 ft.

851. SEi sec. 23, NEi sec. 26. Sample taken across 40 ft.

852. SEi sec. 23, NEi sec. 26. Sample taken across 50 ft.

853. SEi sec. 23, NEi sec. 26. Sample taken across 40 ft.

854. NEi sec. 26. Analyst, Mark Adams; spectrochemical analyst,

C. E. Harvey. Sample St 8-1. Chip sample taken across 350 ft.

855. County, age, formation, maps, and use as in sample 848. SEi sec. 23, 

NEi sec. 26, T. 35 N., R. 9 E., about 0.75 mile north of Rockport, 

Sauk Mountain. Roche Harbor Lime Co. Analyst, A. A. Hammer. 

Sample 117. (Shedd. 1913, p. 229, 230, 247, pi. 21; Hodge, 1938b, 

p. 13, 47, 56, j>7. 58; Danner. 1966, p. 82. 269. 289-292, 293, 294.) 

Limestone, light-gray, massive, finely crystalline; more than 120 ft 

exposed. Tonnage estimated.

- 860. County, age, formation, analysts, references, maps, and use as in sample 

848. NEiNEi sec. 26, T. 35 N., R. 9 E. North Rockport deposit, 

Roche Harbor Lime and Cement Co. General: Limestone, white to darkgray, medium- to coarse-grained, massive, nniform texture. Tonnage 

estimated.

856. Channel sample taken across 14.0 ft.

857. Channel sample taken across 13.2 ft.

858. Channel sample taken across 11.8 ft.

859. Channel sample taken across 9.0 ft.

860. Channel sample taken across 10.0 ft.

863. Skagit County. Silurian^ ?) and Devonian^ ?) part of Chilliwack Group.

SEi NEi sec. 26, T. 35 N., R. 9 E., about 0.5 mile from Rockport.

South Rockport deposit. ( Danner, 1966, p. 16, 19, 82, 260, 290, 292-

294. 451, 462.) Index and geologic maps.'

861, 862. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Samples St 9-2, St 9-1. Limestone, gray, finely crystalline. Chip sample. 

861. Composite. 862. Taken across 100 ft. 

863. Roche Harbor Lime and Cement Co. Analysts, K.S, Johnson, 

Anthony Centenero. ( Popoff, 1948, p. 2, 6, 7, 11, 13, 

figs. 1, 3.) Limestone, white to dark-gray, medium- or 

coarse-grained, massive, uniform texture. Channel 

sample taken across 10 ft.

6 With sample 64 group C, NajO = 330 ppm, 

KjO = 565 ppm, TiO2 = l,250 ppm, S = 143 ppm.

7 Analysis on dry basis.
162 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group fj), common-rock category Continued

Chemical analyses Continued

Washington Continued

A.1,0, _______

Fe,0, _______

MgO ________

P,Os __ _____ ,

Total

Class

864 865

46F, 46F, 

29-139 29-142

____ 4.66 1.30

 | '.88 '.40

__ .21 .19

____ 52.87 54.70

____ .007 .005

____ *41.50 3 42.98

____ [100.13] [99.58]

____ 3.3,94 1,1,97

____ Calcite Calcite

866

46F, 

29-137

2.63 

'.19

.31 

54.48 

.003

3 42. 23

4[99.84] 

2,1,96 

Calcite

867

46F, 

29-136

1.96 

'.33

.14

55.02 

.008

'42.53

*[99.99] 

1.1,9*) 

Calcite

868 869

46F, 46F, 

29-135 29-40

0.89 1.1

' - ( a

.16 .2 

55.47 54.9 

.008 '.01 

_____ .000

3 42.75 43.0

*[99.48] '[99.4] 

1.1,97 1,1,98 

Calcite Calcite

870

46F, 

29-31

0.6 

.1 

.1 

.1 

55.7 

'.01 

.001 

43.2

'[99.8] 

0,1,98 

Calcite

871

46F, 

29-32

0.5 

.1 

.1 

.0 

55.8 

'.01 

.001 

43 .a

'[99.6] 

0,1,98 

Calcite

872

46F, 

29-33

0.9 

.2 

.1 

.0 

55.6

.000 

43.2

'[100.0] 

0,1,98 

Calcite

873

46F, 

29-34

0.7 

.3 

.1 

.0 

55.7 

'.01 

.000 

43.4

*[100.2] 

0,1,98 

Calcite

874

46F, 

29-36

2.1 

.3 

.2 

.0 

54.9 

'.02 

.001 

42.5

875

46F, 

29-35

1.0 

.2 

.1 

.0 

55.6 

'.01 

.000 

43.2

s[ 100.0] *[100.1] 

1,1,96 1,1,98 

Calcite Calcite

876

46F] 

29-37

2.3 

.8 

.4 

.3 

53.5 

'.03 

.008 

42.2

5[99.5] 

0,3,95 

Calcite

Washington Continued

SiO, ________

Al,0, ________

Fe,0, ________

MgO ________

CaO ________

PjOs ________

S

Ignition loss ___

Total ___

Class ______ .

CaO/MgO ___ .

877

46F,29-38

___ _______ 2.8

_ _________ .4

___________ .3

___________ .3

___________ 53.5

___________ '.02

____________ .010

___________ 42.2

___________ '[99.5]

___________ 2,2,95

___________ Calcite

878

46F,29-39

1.4 

.3 

.2 

.3 

54.5 

'.01 

.001 

42.7

'[99.4] 

1,1,97 

Calcite

879

46F,29-41

5.3 

.9 

.6 

.4 

51.5 

'.03 

.035 

40.6

*[99.4] 

3,4,91 

Calcite

880 881

46F,29-93 46F,29-92

1.59 6.86 

V '.22 '.62

.06 .67 

55.20 51.40 

.004 .008

'42.53 *40.22

[99.60] [99.78] 

1,1,97 6,2,91 

Calcite Calcite

882

46F,29-97

2.28 

'.79

.09 

54.48 

.018

'42.10

[99.76] 

1.2,95 

Calcite

883

46Fj29-96

2.04 

'.48

.09 

54.79 

.006

'42.08

[99.49] 

1,1,95 

Calcite

884

46F,29-95

2.27 

'.30

.13 

54.83 

.003

'42.15

[99.68] 

2,1,96 

Calcite

885

46F,29-94

7.56

.48 

51.02 

.008

'39.74

[99.97] 

6,3,90 

Calcite

886

46F,29-88

6.29 

'.99

.25 

52.15 

.005

'40.16

[99.84] 

5,3,91 

Calcite

887

46F,29-2

3.41 

'1.78

'1.10

'51.82

7 41.88

[99.99] 

0,5.95 

Calcite

888

46F,29-1

0.80 

'.70

'.31 

'54.98

7 43.50

[100.29] 

0,1,99 

Calcite

Washington Continued

SiO, ________

MgO ________

CaO ________

Ignition loss _ _

Total ___

Class ________

CaO/MgO __ __

889

46F,29-20

___________ 5.36

1.12

___________ 1.08

___________ 52.08

_ _________ [59.64]

___________ 3,3,91

_ ___ _ _ _ Calcite

890

46F,29-18

4.26 

1.22 

.91 

52.70

[59.09] 

2,4,92 

Calcite

891

46F,29-14

5.56

.98 

1.10 

51.98

[59.62] 

4,3,91 

Calcite

892 893

46F,29-21 46F,29-19

2.06 4.68 

1.12 1.20 

Trace .92 

54.25 52.30

[57.43] [59.10] 

0,3.96 3,4.92 

Calcite Calcite

894

46F,29-15

6.76 

.92 

1.16

51.20

[60.04] 

5,3,90 

Calcite

895

46F,29-17

3.72 

1.24 

.62 

53.22

[58.80] 

2,4,93 

Calcite

896

46F,29-16

8.36 

.96 

1.04 

50.70

[61.06] 

7,3,88 

Calcite

897

46F,29-22

2.92 

1.06 

Trace

53.60

[57.58] 

1,3,96 

Calcite

898

46F,29-13

8.40 

.88 

1.22 

50.30

[60.80] 

7,3.88 

Calcite

Washington Continued

SiO, _______ .

Al,0, .

Fe_Q| .

MgO _______

CaO _______ .

H_0 .

P,0S .

Ignition loss __ .

Total __ .

Class ______ .

CaO/MgO _

901

46F,29-4

___________ 7.34

___________ .41

___________ .83

___________ 50.74

___________ 40.15

___________ 99.47

. __________ 6.3,91

. _____ _ __ Calcite

902

46F,29-25

0.70 

.40 

'.10 

'.17 

'55.01 

.18

7 43.38

99.94

0.1.99 

Calcite

903

46F,29-24

0.64 

.36 

'.11 

'.14 

*55.14 

.16

743.44

99.99

0.1,99 

Calcite

904 905

46F,29-87 46F,29-79

1.47 2.72 

] '.43 '.37

.26 .19 

54.00 53.70

.013 .010 

'43.21 '42.20

[99.38] *[99.19]

1.2.97 2,1,96 

Calcite Calcite

906

46F,29-86

6.34

'l.OO

*2.31 

'49.20

741.15

[100.00]

5,3.93 

Magnesian 

calcite

907

46F,29-85

4.30 

'.94

'.81 

'52.13

741.82

[100.00]

3,3,94 

Calcite

908

46F,29-84

4.48 

'.TO

*2.72 

'49.37

7 41.73

[99.06]

3,2,94 

Magnesian 

calcite

909

46F,29-83

2.94 

'1.50

'10.74 

'46.54

738.30

[100.02]

0,4,84 

Magnesian 

calcite

910

46F,29-82

1.20 

'.84

'2.04 

'52.47

7 43.45

[100.00]

0,2,98 

Magnesian 

calcite

899

46F,29-26

1.94 

.22 

Trace 

54.92 

42.67

99.75 

2,1,97 

Calcite

911

46F,29-81

0.00 

1 .50

 Trace 

'55.46

743.54

[99.50]

0.0,99 

Calcite

900

46F,29-3

3.36 

1.78 

.30 

51.85 

42.61

99.90 

0,6,93 

Calcite

912

46F,29-72

2.00

54.30

[56.30]

2.0.97 

Calcite

'Calculated from reported MgCO,, CaCO, and (or) P. 

'Sample dried at 110°-112° C; ignition loss 1,000°-1,100°C. 

*A composite of samples 866-868 contained NajO= 150 ppm, 

K2O = 490 ppm. TiOj = 100 ppm, S = 350 ppm.

'Analysis on dry basis. 'MgCO,.

'iron and aluminum oxides. "With sample 68,group C, sample 330 

7 COj. calculated from reported MgCO, group F lt Na,O= 185 ppm, KjO =490 ppm, 

and CaCO,. TiOj = 250 ppm, S = 325 ppm. 

'iron oxide.
ANALYSES OF SAMPLES 163

Spectrochemical analyses

[The metallic elements not detected in the spectrochemical analysis: LijO.BeO.BjOj.KjO.ScjOj.ViOs 

Pd,CdO,Ii*0,,SnO,.SbtO,,BaO,TeO,.CsiO,LatOs,Ce<^,ft^ 

TltO,,PbO.BitO8 ,ThO,.UQ.j; sample 886.ZrO2 = 0.0048 percent]

TiO, 

CrtO, 

MnO ____

CuO ___

SrO _____

864

.021

.043

.0020 

.010

865

0.0044

.03

.00072 

.011

866

0.002

.021

.0012 

.0096

867

0.0044

.027

.0010 

.008

868

0.0048

.024

.0006 

.010

880

0.0038

.038

.0006 

.007

881

0.016

.021

.0014 

.013

882

0.01

.025

.0014 

.01

883

0.012

.016

.0012 

.017

884

0.05

.015

.027

.00083 

.0084

885

0.05

.032

.015 

..001

.0011 

.015

886

0.05

.032 

.0005

.019

.0012 

.020

904

0.0072 

.0005

.20

.0014 

.013

905

0.0044 

.0007

.034

.00066 

.015

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

864, 865. Skagit County. Devonian part of Chilliwack Group. T. 35 N.. R. 9 E.. 

about 6 miles by road from town of Concrete. Jackman Creek deposit. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. ( Danner, 1966, p. 16,19,82,269,271,451,462.) Chip 

sample. Index and geologic maps. Possible use: None, deposit small.

864. NWi sec. 4. Sample St 4-1. ( Danner, 1966, p. 275-277, 278.) 

Limestone, bluish-gray to dark-gray, finely crystalline, fossiliferous. Composite sample of chips taken from all outcrops and 

numerous pieces of float.

865. NEi sec. 5. Sample St 5-1. (Danner, 1966, p. 275. 279.)

Limestone, dark-gray, thin-bedded to massive, finely crystalline; 

weathers light gray; taken across 150 ft.

866-868. Skagit County. Devonian!?) part of Chilliwack Group. NISEi sec. 4,

T. 35 N., R. 9 E., about 6 miles from Concrete. Webber Creek deposit. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 269, 271, 275, 281, 

282. 451, 462, 463.) Limestone, bluish-gray to dark-gray, mostly 

crystalline, fossiliferous, thin-bedded; contains secondary chert and 

pyrite. Chip sample. Index and geologic maps.

866. Sample St 15-1 taken across 60 ft.

867. Sample St 15-2 taken across 300 ft.

868. Sample St 15-3 taken across 400 ft.

869-879. Skagit County. Devonian(?) part of Chilliwack Group. T. 35 N., R. 9 E., 

about 2 miles from town of Sauk. Owner, Browns Logging Co. Analysts, 

K. S. Johnson, Anthony Centenero. ( Popoff, 1948, p. 2, 5-8, 11, ^2, 

figs. 1, 2; Danner, 1966, p. 82, 269, 271, 283-286, 287. 288.) 

General: Limestone, white to dark-gray, medium- or coarse-grained, 

massive, uniform texture. Tonnage estimated. Index and geologic maps.

869. NWiNW^ sec. 15. Paystreak deposit. Chip sample taken

across 24.0 ft. 

870-878. SEiNW^ sec. 15. Paystreak deposit.

870. Chip sample taken across 10 ft.

871. Chip sample taken across 10.0 ft.

872. Chip sample taken across 17.0 ft.

873. Chip sample taken across 12.0 ft.

874. Chip sample taken across 17.5 ft.

875. Chip sample taken across 16.0 ft.

876. Chip sample taken across 16.0 ft.

877. Chip sample taken across 14.0 ft.

878. Chip sample taken across 21.0 ft.

879. NE^NEi sec. 16. Portland deposit. Chip sample taken 

across 12.5 ft; contains two thin seams of shale.

880,881. Skagit County. Devonian!?) part of Chilliwack Group. T. 35 N., R. 10 E. 

Meiklejohn and Brown Co., Portland claim. Analyst, under supervision 

of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, 

p. 16, 19, 82, 269, 271, 283, 284, J287, 288. 451. 463.) General: 

Limestone, thin-bedded, fossiliferous; interbedded shales. Chip sample. 

Tonnage estimated. Index and geologic maps.

880. NEi sec. 16. Sample St 17-3 taken across 100 ft.

881. SEi sec. 9. Sample St 17-4 taken across 60 ft.

882- 885. County, age, formation, analysts, and maps as in samples 880, 881. 

T. 35 N., R. 10 E. Meiklejohn and Brown Co., Paystreak claim. 

( Danner. 1966, p. 16, 19, 82, 269, 271, 283-286, 288, 451. 463.)

Washington Continued

Limestone, light-gray, dark-gray, brownish-gray, medium crystalline, 

mostly massive, fossiliferous. Chip sample. Tonnage estimated.

882. NWj sec. 15. Sample St 17-1 taken across 50 ft.

883. NWi sec. 15. Sample St 17-2 taken across 50 ft.

884. NE« sec. 16. Sample St 18-1 taken across 50 ft.

885. NEi sec. 16. Sample St 18-2 taken across 250 ft.

886. County, age, formation, analysts, and maps as in samples 880, 881. E? 

sec. 16, T. 35 N., R. 10 E. Meiklejohn and Brown Co., Broderick 

claim. Sample St 18-5. (Danner, 1966, p. 16, 19, 82, 269, 271, 283, 

284, 288, 451, 463.) Limestone, dense to crystalline, well-bedded, 

fossiliferous. Chip sample taken across 25 ft. Tonnage estimated.

887,888. Skagit County. Early Pennsylvanian part of Chilliwack Group. NWi and 

S\ sec. 1, NEi sec. 2, T. 35 N., R. 8 E., 1.5-2.5 miles by road from 

Concrete. Lone Star Cement Co. Analyst, C. W. Johnson. ( Landes, 

1905 [1906], p. 379, J380; Danner, 1966, p. 82. 269, 271-274.) 

Limestone, massive, fossiliferous; contains secondary chert. Tonnage 

estimated. Index maps. Use: Portland cement.

889 - 901. Skagit County. Early Pennsylvanian part of Chilliwack Group. Center

sec. 2, T. 35 N., R. 8 E., about 1 mile by road from Concrete. Lone 

Star Cement Co. (Danner, 1966, p.82,269,271-274.) Limestone, lightto dark-gray, dense to organoclastic and oolitic, well-bedded; about 500- 

600 ft thick. Thin-section description. Index maps. Use: Portland cement.

889-900. (Shedd, 1913, p. 220, 221, 225, 226, 247, pi. 21.)

889. Sample 104. 893. Sample 108. 897. Sample 112.

890. Sample 105. 894. Sample 109. 898. Sample 113.

891. Sample 106. 895. Sample 110. 899. Sample 114.

892. Sample 107. 896. Sample 111. 900. Sample 115. 

901. (Hodge, 1938c, p. 13,47,48,51,^2,53.) Tonnage estimated.

902,903. Skagit County. Early Pennsylvanian part of Chilliwack Group ( Danner,

1966). Sec. 2, T. 35 N., R. 8 E., near Concrete. ( Hodge, 1938c, p.13, 

47,48,53,^4.) General: Limestone, almost pure white, crystalline; at 

least 150 ft thick. Tonnage estimated. Index map. Possible use: Flux.

904. Skagit County. Early Pennsylvanian part of Chilliwack Group. North center 

and NWi sec. 5, T. 36 N., R. 8 E., about 16 miles north of Concrete. 

Dock Butte Trail deposit. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. Sample St 19-1. (Danner, 1966. 

p. 16, 19, 82, 259, 260, 262, 263. 451. 463.) Limestone, gray to lightgray, mostly finely crystalline. Chip sample taken across 250 ft. Index 

and geologic maps. Possible use: None, deposit small.

905 - 911. Skagit County. Early Pennsylvanian part of Chilliwack Group. About 17 

miles from Concrete. Washington Monument deposit. ( Danner, 1966, 

p. 16, 19, 82, 259, 260, 264, 265, 268, 451.) Limestone, massive to 

thin-bedded, oolitic, organoclastic and crystalline textures. Index and 

geologic maps. Possible use: Portland cement.

905. NWi sec. 7, T. 36 N., R. 8 E. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample St 22-3. Chip sample, composite.

906-911. Wi sec. 7, T. 36 N., R. 8 E., and SE^NEi and SEi sec. 12, 

T. 36 N., R. 7 E.

912. Skagit County. Early Pennsylvanian part of ChilliwackGroup(Danner, 1966). 

[Probably T. 36 N., Rs. 8, 9 E.], Concrete. ( Hodge, 1944, p. Jj>. 

pi. 6.) Limestone, selected sample. Tonnage estimated. Index map.
164 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

SiO,

A12 0, ___________

Fe,0, ___________

MgO

CaO

PA ________ _

Ignition loss

Total _______

Class

CaO/MgO

SiO, ____________

AljO, 

Fe.0, ___________

MgO ____________

CaO ____________

PjOs 

Ignition loss _ _ _ _

Total _ ______

Class _ _ _ ___ _

CaO/MgO _________

SiO, _

AljO, 

Fe,0, __

MgO ____________

CaO

PjO, ____________

S ______________

Class ____________

CaO/MgO _ _

913

46F, 

29-105

3.69

I «

.35

52.88

.007

*41.87

'[99.54]

2,2,95

Calcite

926

46F, 

29-29

2.80

.28

.98

, *52.89

, *41.51

98.46

1,3,94

939

46F.31-74

6.50

) ' 76

.57

50.83

.025

*40.51

[99.20]

5,2,91

Calcite

914

46F, 

29-104

1.08

'.36

.39

55.57

.017

*42.83

'[100.25]

0,1,97

Calcite

927

46FS 

29-30

1.36

1 82

I ' 82

54.77

42.05

0,2,95

940

46F.31-33

0.3

( -° I .06

.5

55.5

'.11

.009

9 (.03)

*43.6

"[ 100.1]

0,0,99

Calcite

915

46F, 

29-103

2.36

'.29

.23

54.89

*42.24

'[100.03]

2,1,96

Calcite

928

46FS 

29-129

0.55

'.42

.09

55.13

.003

*43.41

[99.60]

0,1,98

941

46F.31-34

1.2

.2

.4

.0

52.9

*.208

.014

 (.05)

*43.2

UC98.1]

0,3,94

Calcite

916

46F: 

29-101

8.03

'.60

.67

51.11

*39.78

7,2,90

Calcite

929

46F, 

29-123

8.39

'.86

.45

50.17

.056

*39.91

7,3,90

942

46F,31-35

.3

.4

.3

54.7

.015

*43.4

U[100.0]

0,2,98

Calcite

W ashington Continued

917 918 919

46F, 46F2 46F2 

29-140 29-141 29-138

3.35 2.01 6.55

'.98 *.31 *.42

.19 .23 .15

53.97 55.07 52.00

*40.97 *41.93 *40.97

[99.47] [99.56] [100.10]

2,3,93 1,1,95 6,1,93

Calcite Calcite Calcite

Washington Continued

930 931 932

46F, 46F, 46FS 

29-112 29-78 29-77

8.78 2.61 2.63

'.90 '.94 '.95

.48 1.84 1.85

.090 .019 .018

*39.60 4 42.57 *42.49

7,3,89 1,3,96 1,3,95

Washington Continued

943 944 945

46F.31-36 46F.31-37 46F,31-38

.2 .0 .0

.2 .1 .2

.7 .4 .5

54.8 55.5 55.4

.014 .014 .007

*43.6 *43.7 *43.5

U[100.1] "QOO.O] "[100.2]

Calcite Calcite Calcite

920

46F, 

29-130

2.99

.24

54.14

.010

*41.60

[99.70]

2,2,94

Calcite

933

46FS 

29^144

1.15

'.32

.73

54.09

.035

*43.98

1,2,98

946

46F.31-39

0.7

.1

.2

.6

54.8

*.03

.016

 (.07)

*43.4

"[99.8]

0,1,98

Calcite

921

46F: 

29-132

1.93

.17

55.00

.006

4 42. 30

[99.71]

1,1,96

Calcite

934

46Fj 

29-143

2.97

'.73

.30

52.57

.044

*43.07

[99.68]

2,3,94

Calcite

947

46Fj31-40

0.7

.0

.1

.8

54.9

'.14

.012

 (.05)

"43.3

"[100.0]

1.0,98

Calcite

922

46F, 

29-131

3.82

'.29

.01

53.65

.007

*42.11

[99.89]

3,1,96

Calcite

935

46FS 

29-110

1.06

'.31

4.72

50.16

.064

*43.91

'[100.22]

1,1,98

Magnesian

calcite

948

46F.31-41

0.5

.0

.1

.6

55.0

'.02

.007

*43.4

"[99.6]

0,0,98

Calcite

923

46Fj 

29-133

2.83

.06

54.60

.008

*41.91

[99.73 -

2,1,95

Calcite

936

46Fj 

29-109

1.25

'.96

4.84

49.90

.200

*43.41

| [100.56]

0,2,96

Magnesian

calcite

949

46F.31-42

0.5

.0

.2

.5

55.3

'.01

.004

*43.5

"[100.0]

0,0,99

Calcite

924

46FS 

29-27

1.58

* Trace

'54.71

*42.94

] 99.69

1,1,98

Calcite

937

46F, 

31-70

4.03

*1.46

.48

52.16

.024

*41.44

[99.59]

2,4,93

Calcite

950

46F.31-43

0.6

.0

.2

1.4

54.1

'.15

.005

*43.5

"[100.0]

0,0,98

Calcite

925

46FS 

29-28

1.60

{

ifi .16

.56

53.89

42.91

99.12

1,2,96

Calcite

938

46F, 

31-69

5.20

.35

51.87

.022

*40.90

[99.73]

3.4,92

Calcite

951

46F.31-44

0.7

.1

.1

.6

54.3

*.02

.003

*43.4

"[99.2]

0,1,98

Calcite

See following page for footnotes.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: LijO.BeO.BjOj.KjO.ScjOj.CoO.ZnO.GatOj.GeOj.AstOj.YjOj.ZrOj.NbjOg.MoOj.AgiO.Ru.Rh.Pd.CdO, 

In,C^, SnC),, Slj,C^ ,BaO, TeC),. Cs,0, La,0, ,CeC>,, PrjO,, N^^

NasO

TiO,

V,05 .

Cr,0, ___ __ .

MnO

NiO

CuO

SrO

TiO, _____ __.

V^Oj .

O.O.

MnO __ _______

CuO ____________

SrO _ ________

913

. ________ 0.05

. ________ .011

. ________ .012

. ________ .001

. ________ .0013

. ________ .010

914

0.012

.0007

.011

.0013

.011

929

0.018

.053

.001

.0016

.025

915

0.002

.0005

.007

.00094

.0094

930

0.027

.053

.0014

.040

916

0.008

.019

.0013

.0092

931

0.046

.0010

.053

001

.00088

.015

917

0.017

.03

.00099

.011

932

0.014

.00074

.025

.00077

.015

918

0.083

.0092

.024

.0005

.009

933

0.11

.011

.0005

.01

.00088

.024

919

0.0032

.062

.001

.0012

.009

934

0.21

.026

.00074

.019

.001

.0017

.012

920

0.014

.027

.00088

.0082

935

0.0048

.003

.022

.00099

.0091

921

0.008

.032

.0012

.0088

936

0.0088

.003

.051

.0012

.011

922

0.004

.053

.00077

.010

937

0.18

.021

.00074

.14

.0014

.034

923

0.012

.063

.0016

.0082

938

0.20

.033

.0011

.15

.0019

.015

928

0.0076

.003

.02

.001

.0005

.010

939

0.06

.013

.003

.0005

.043

.001

.0022

.017
ANALYSES OF SAMPLES 165

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

913-916. Skagit County. Pennsylvania!! part of Chilliwack Group. Ei sec. 32,

T. 35 N., R. 9 E. Sutter Mountain deposit. Analyst, under supervision 

of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, 

p. 16, 19, 82, 269, 301-^03, 451, 463.) Limestone, medium crystalline. Chip sample. Index and geologic maps.

913. Sample St 24-1 taken across 52 ft.

914. Sample St 24-2 taken across 500 ft.

915. Sample St 24-3 taken across 400 ft.

916. Sample St 24-5 taken across 300 ft.

917-923. Skagit County. Devonian to Early Permian, Chilliwack Group. T. 35 N., 

R. 9 E. , about 6 miles by road from town of Concrete. Jackman Creek 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 269, 271, 275, 

276, 278-281, 450. 451, 463.) Chip sample. Index and geologic maps. 

Possible use: None, deposit small.

917, 918. NWi sec. 4. Limestone, fine to medium crystalline. 

Mineralogy .

917. Sample St 16-1 taken across 460 ft.

918. Sample St 16-2 taken across 170 ft.

919. SWi NEi sec. 5. Sample St 3-1. Limestone, gray, massive, 

finely crystalline; taken across 90 ft.

920. NiSEi sec. 5. Sample St 16-3. Limestone, finely crystalline; taken across 105 ft.

921, 922. SEi sec. 5. Limestone, dense, well-bedded; 40-100 ft thick.

921. Sample St 16-4, composite.

922. Sample St 6-1 taken across 120 ft.

923. NEiNEi sec. 8. Sample St 14-1. Limestone, gray, finely 

crystalline, massive; about 50-75 ft thick. Composite 

sample of talus.

924-926. Skagit County. Devonian to Early Permian. Chilliwack Group. NWi NWi 

sec. 9 and NEi NEi sec. 8, T. 35 N. , R. 9 E. , about 2.5 miles northeast of town of Van Horn. Bear Creek deposit. ( Hodge, 1938c, p. 13, 

48, 54, 55; Danner, 1966, p. 82, 269, 271, 275, 280. 281.) Limestone, gray, finely crystalline, massive; about 50-75 ft thick. Tonnage 

estimated. Index and geologic maps.

924 % ( Hodge, 1935c, p. 72. T3.) Possible use: Flux.

927. Skagit County. Devonian to Early Permian, Chilliwack Group (Danner,

1966). Sees. 9, 15. 16, T. 35 N. , R. 9 E. , near town of Sauk. Analyst, 

A. A. Hammer. Sample 116. ( Shedd, 1913, p. 228. 229, 247. pi. 21; 

Hodge, 1938c, p. 13, 56.) Limestone, light- colored, crystalline, 

coarse-texture; 100 ft exposed. Index maps. Possible use: Portland 

cement .

928, 929. Skagit County. Devonian to Early Permian, Chilliwack Group. T. 35 N., 

R. 10 E. , Sutter Creek deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, 

p. 16, 19. 82. 269. 290. 295-297, 451. 462.) Limestone, dark-gray 

to gray, massive to well-bedded to laminated, dense to finely crystalline; 

contains calcite veinlets; interbeds of black shale. Thin-section description. Chip sample. Index and geologic maps. Possible use: Cement.

928. NEi sec. 19. Sample St 11-9, single specimen.

929. SWi sec. 20. Sample St 11-3 taken across 25 ft.

930. County, age, formation, analysts, and maps as in samples 928, 929.

Si sec. 21, T. 35 N. , R. 10 E. , 4 miles east of Rockport. Rocky Creek 

deposit, roadcut. Sample St 12-1. (Danner, 1966, p. 16, 19, 82, 269, 

290, 297, 298, 451, 462.) Limestone, dark-blue-gray, dense to crystalline, thin- bedded. Chip sample taken across 30 ft. Possible use: 

None, deposit impure.

931, 932. County, age, formation, analysts, and maps as in samples 928, 929. NEi 

sec. 30, T. 36 N., R. 9 E., about 9 miles northeast of Concrete. Three

Washington Continued

Mile Creek quarry, abandoned. ( Danner, 1966, p. 16, 19, 82, 269- 

271, 450. 462.) Limestone, light-gray, mostly finely crystalline; 

contains calcite veinlets and stylolites; poorly bedded. Mineralogy. 

Chip sample. Former use: Road metal. Possible use: None, deposit in 

remote area.

931. Sample St 2-1 taken across 20 ft.

932. Sample St 2-2 taken across 120 ft.

933, 934. Skagit County. Holocene. NEiNEi sec. 9, T. 35 N., R. 8 E., northwest 

of Concrete. Strong deposit. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 

436, 439, 450, 462.) Tufa, deposit consists of layers of soft porous 

crumbly tufa and hard porous tufa; at least 6 ft thick. Chip sample. 

Index and geologic maps. Former use: Agricultural.

933.

934.

Sample St 1-1 taken across 55 ft. 

Sample St 1-3, single specimen.

935, 936. Skagit County. SWi sec. 2, SEi sec. 3, T. 35 N., R. 12 E. Crescent 

Marble Co., Marble Creek deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Samples St 13-1, 

St 13-2. ( Danner, 1966, p. 16, 19, 82, 269, 299-301, 451, 462.) 

Limestone, alternating blue and white layers, medium to coarsely 

crystalline. Chip sample taken across 50 ft. Tonnage estimated. Index 

and geologic maps. Possible use: Decorative stone.

937, 938. Snohomish County. Probably Early Pennsylvanian. NWi and SWi xc- 18 > 

T. 31 N., R. 11 E., southeast of town of Darrington. Whitechuck River 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 333, 335, 337, 

338. 339, 452, 464.) Limestone, dark-blue-gray, oolitic and finely 

crystalline; weathers light blue gray; interbedded with shale. Chip 

sample. Index and geologic maps, measured section. Possible use: 

None, deposit small.

937. Sample Sh 3-2 taken across 20 ft.

938. Sample Sh 3-3 taken across 60 ft.

939. County, analysts, reference, maps, and use as in samples 937, 938. Early 

Pennsylvanian. NWi sec. 36, T. 32 N., R. 10 E., southeast of 

Darrington. Conn Creek deposit. Sample Sh 11-1. Limestone, gray, 

some brown, mostly crystalline or organoclastic, cherry; in beds 0.5- 

26 in. thick; alternating with gray-brown chert, in beds 0.75-8 in. thick. 

Chip sample taken across 75 ft.

940-951. Snohomish County. Permian. SWi sec. 1 and SEi sec. 2, T. 31 N.,

R. 6 E., about 10 miles east of town of Arlington. Twin Lakes deposit. 

Analysts, K. A. Johnson, Anthony Centenero. ( Popoff, 1949a, p. 2, 

4-6, figs. 1. 2 sheets A. B; Danner. 1966, p. 82, 311-^15.) General: 

Marble, light-gray to dark-gray, fine-grained; contains calcite veinlets; 

about 60 ft thick. Tonnage estimated. Index and geologic maps. Use: 

Agricultural.

940. Sample S 1 taken across 15.5 ft.

941. Samples 2 taken across 18.0ft.

942. Sample S 3 taken across 10.0 ft.

943. Sample S 4 taken across 10.5 ft.

944. Sample S 5 taken across 3.0 ft.

945. Sample S 6 taken across 5.0 ft.

946. Sample S 7 taken across 10.0 ft.

947. Samples 8 taken across 7.0 ft.

948. Sample S 9 taken across 6.0 ft.

949. Sample S 10 taken across 10.0 ft.

950. Sample S 11 taken across 13.0 ft.

951. Sample S 12 taken across 9.0 ft.

Footnotes of analyses on preceding page:

1 R10,. 

'MgCO,.

9 Calculated from reported CaCOj or P. 

4 Sample dried at 110°-112°C; 

ignition loss 1 , 000°- 1 , 1 00°C .

5 COj, calculated from reported CaCOj.

6 A composite of samples 913-915 contained 

NajO = 175ppm, KjO = 490ppm. TiO, = 180ppm. 

S = 195 ppm.

7 NajO = 165 ppm. KjO = 450ppm. Ti<O = 250ppm, 

S = 375 ppm.

'NajO = 125 ppm, KjO = 380ppm, TiOt=150ppm, 

S = 125 ppm.

'Calculated from reported free carbon; not 

included in total.

M At950°C.

11 Analysis on dry basis.
166 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F-), common-rock category Continued

Chemical analyses Continued

Washington Continued

SiO, ___ , A1.0, _______

Fe.0, _______

MgQ. ________

CaO _________

P.O, ________

S __________ ,

Total __ ,

Class ________

CaO/MgO _____

952

46F.31-1

___ 0.22

 I J Trace

___ Trace

___ 55.12

___ 43.86

___ 99.20

___ 0.1.98

___ Calcite

953

46F.31-7

0.2 

"1.4

Trace 

*55.0

*43.1

[99.7] 

0.0.98 

Calcite

954 955

46F-31-66 46F.31-67

1.11 1.51 

*.29 1 .68

.44 .99 

54.23 53.35 

.017 .006

7 43.19 7 42.88

[99.28] [99.42] 

1,1.98 0,2,97 

Calcite Calcite

956 957

46F.31-63 46F-31-64

1.21 0.67 

1 .27 *.27

2.29 .49 

52.13 54.75 

.022 .005

T 43.13 7 43.41

[99.05] [99.60]

1.1,97 0.1.98

Magnesian , . 6 Calcite calcite

958

46F-31-65

0.78 

'.97

9.70 

43.44 

.009

7 44.82

[99.72]

0.1,98

Magnesian 

calcite

959

46F.31-2

0.61 

.13

.42 

54.44

44.00

99.60 

0,1.98 

Calcite

960

46F-31-68

0.60

I 'iTs 

.80 

455.14

*43.29

[100.98] 

0.1.98 

Calcite

961

46F-31-45

0.7 

.0 

.2 

.7 

55.1 

§ .14 

.004 

*43.2

962

46F.31-46

0.6 

.0 

.1 

.6 

55.2 

*.09 

.004 

'43.4

'[100.0] *[ 100.0] 

0,0.98 0.0,98 

Calcite Calcite

963

46F-31-55

0.39 

] '.26

1.13 

54.87 

5 .13

43.57

100.35 

0.1.99 

Calcite

964

46F.31-57

0.26 

'.16

.97 

55.18 

5 .13

43.53

100.23 

0,0,99 

Calcite

Washington Continued

SiOj _______ , A1.0, _______

FejOj _______

MgQ _________

CaO _________

P.O, ________

S __ ,

Total ___

Class ________

CaO/MgO _____

965

46F2 31-56

___ 1.23

- ] '.29

___ .15

___ 54.66

___ *43.27

___ [99.60]

___ 1.1.98

Calcite

966

46F-31-47

0.2 { ::

.4 

55.1 

§ .04 

.004 

*43.6

 [99.6] 

0,0,99 

Calcite

967 968

46F.31-48 46F.31-49

2.0 0.4 

.3 .1 

.1 .1 

.4 .4 

54.0 55.1 

*.05 *.06 

.002 .002 

8 43.0 *43.6

*[99.9] »[99.8] 

1.1,97 0,1.99 

Calcite Calcite

969 970

46F.31-50 46F.31-51

0.2 0.2 

.1 .1 

.1 .2 

.4 .4 

55.4 55.6 

5 .12 8 .03 

.000 .004 

'43.6 *43.8

 [99.9] »[100.3] 

0,0,99 0,0,99 

Calcite Calcite

971

46F-31-52

0.5 

.4 

.2 

.3 

55.5 

8.09 

.001 

"43.5

 [100.5] 

0,1,99 

Calcite

972

46F.31-53

0.4 

.1 

.1 

.4 

55.3 

5 .10 

.003

 [56.4] 

0.1.99 

Calcite

973

46F-31-54

2.50 

| '.60

.40 

54.04

42.0

[99.5] 

1.2,95 

Calcite

974

46F.31-90

6.76 

l.&3

.51 

50.93 

.025

7 40.21

[99.26] 

5,2,91 

Calcite

975

46F.31-91

3.02 

1 .84

.59 

53.03 

.031

T 41.75

[99.26] 

2.2,94 

Calcite

976

46F.31-93

5.09 

'.60

.32 

52.68 

.030

7 40.88

[99.60] 

4,2,92 

Calcite

977

46F.31-94

5.04 

*1.22

.78 

51.41 

.035

7 41.04

[99.52] 

3.4.92 

Calcite

Washington Continued

SiO. _____ _

A1.0, _______

Mga ________

CaO _________

H.O- _______

P.0$ ______ ,

S

Ignition loss _ _

Total __ ,

Class ______ ,

CaO/MgO _____

978

46F. 

31-95

4.74 

] '.75

.56 

52.21

.027

T 41.14

[99.43] 

3,2.93 

Calcite

979 980

46F. 46F. 

31-96 31-102

3.49 ______

».44 ______

.20 ______

53.63 53.56

.018 ______

7 41.78 *42.04

[99.56] [95.60] 

3,1.95 0,0,96 

Calcite Calcite

981 982

46F. 46F. 

31-101 31-106

_____ 3.22

I .35

I >73 

_____ .95

53.73 55.10

'42.17 40.05

[95.90] [100.40] 

0,0,96 2.3,90 

Calcite Calcite

983

46F. 

31-108

0.29 

] ».«4

1.15 

53.96

(")

.008

7 44. 12

[99.77] 

0,1,99 

Calcite

984

46F. 

31-6

0.1

f ' 2 I -2

.9 

54.4 

(") 

§ .04 

.119 

'44.4

[100.4] 

0,1,99 

Calcite

985

46FS 

31-5

0.1 

.0 

.04 

1.0 

54.1 

"(6.9) 

§ .01 

.099 

«44.5

[99.8] 

0,1,99 

Calcite

986

46F. 

31-78

2.60 

] '.81

.26 

53.07

.026

7 42.32

[99.09] 

1,3,95 

Calcite

987

46F. 

31-77

3.96 

'1.12

.33 

52.40

.034

7 41.76

[99.60] 

2.3.94 

Calcite

988

46F. 

31-76

2.50 

'.88

.26 

53.30

.009

7 42.62

[99.57] 

1.3.96 

Calcite

989

46F, 

31-75

2.80 

'6.51

18.04 

30.26

.003

7 42.17

[99.78] 

0,5,88 

Dolomite

'R.O,.

Iron and aluminum oxides. 

'iron oxide.

'Calculated from reported CaCOj. 

^Calculated from reported P. 

*COj, calculated from reported MgO and(or) CaCOj.

7 Sample dried at 110°-112^; ignition loss 1.000S-1,100°C.

'At 950°C.

' Analysis on dry basis.

* Moisture content about 7 percent; not included in total.

uNot included in total.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: Li,O,BeO,B,Oj,KiO,Sc1Ot,CoO,ZnO,GatOt,GeOt,AstO,,Y,Ot.ZrOt,Nb1O,,MoO,.AgtO 

InjOj.SnOj.SbiOt.BaO.TeOj.CstO.UiOj.CeOj.PiiOt.NdjO,.^ 

PbO.Bi.Oj.ThOi.UOj; sample 989, CoO = 0.0017 percent. Ag,O = 0.0012 percent]

,Ru,Rh,Pd,CdO,

954 955 956 957 958 974 975 976 977 978

Na.O _________________ .

TiOj _.

V.05 .

Cr.O, __________________ .

MnO _________________ .

NiQ. _________________ .

CuO __________ _______ .

SrO __________________ .

_______________ 0.0064

_______________ .003

______________ .0025

______________ _ .08

________________ .0010

________________ .024

0.017

.003

.0048

.11

.0017

.034

0.0036

.0005

.027

.0012

.021

0.0052

.0012

.032

.00093

.021

0.002

.0015

.16

.0028

.014

0.053

.0016

.12

.0019

.014

0.05

.050

.003

.0012

.095

.0012

.015

0.05

.04

.003

.0010

.07

.001

.00082

.017

0.05

.092

.003

.0013

.073

.001

.0021

.011

0.064

.003

.0010

.073

.001

.0014

.015
ANALYSES OF SAMPLES 167

Spectrochemical analyses Continued

TiO, _________ .

V,05 .

CrjO, .

979

. ________ 0.052

. ________ .0010

983

0.05

.005

.0005

986

0.020

.003

987

0.067

.022

.003

.0005

989

0.12

.03

.0056

.0005

MnO ______ .

NiO ______ .

CuO ______ .

SrQ.____ .

979

. ____ 0.083

_____ .0013

_____ .015

983

0.039

.0019

.014

986

0.043

.001

.0010

.014

987

0.043

.001

.0021

.013

989

0.18

.015

.0040

.034

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

952.

953-958.

Snohomish County. Permian. SjNEi sec. 5, T. 30 N.. R. 7 E.. about 

3.5 miles northeast of town of Granite Falls. Everett Lime Co. Analyst, 

A. A. Hammer. Sample 118. ( Shedd. 1913. p. 231, 232, 247. pi. 21; 

Hodge. 1938c. p. 13, 59-62; Danner. 1966, p. 82, 305, 318-321, 322.) 

Limestone, dark-gray, coarsely crystalline; maximum thickness about 

SOft. Thin-section description. Tonnage estimated. Index and geologic 

maps. Former use: Pulp and paper industry, lime. Use: Agricultural, 

flux, calcium carbide manufacture, sugar refining, building stone, rock 

wool.

Snohomish County. Permian. Ei sec. 5, T. 30 N., R. 7 E., about 3 miles 

northeast of Granite Falls. Canyon Creek Lodge deposit. ( Danner, 1966, 

p. 16, 19, 82, 305, 318-j)21, 322, 452, 464.) Limestone, gray to darkgray, dense, fossiliferous; contains calcite veinlets; maximum thickness 

about 50 ft. Tonnage estimated. Former use: Pulp and paper industry, 

lime. Use: Agricultural, flux, calcium carbide manufacture, sugar 

refining, building stone, rock wool.

953. Analyst, A. H. Cederberg. ( Landes, 1905 [1906], p. 380.)

Possible use: Cement. 

954- 958. Analyst, under supervision of Mark Adams; spectrochemical

analyst, C. E. Harvey. Chip sample.

954. Sample Sh 12-1 taken across 40 ft.

955. Sample Sh 12-2 taken across 40 ft.

956. Sample Sh 12-3 taken across 60 ft.

957. Sample Sh 12-4, single specimen.

958. Sample Sh 12-5, single specimen.

959. Snohomish County. Permian. Sees. 7, 8, T. 30 N., R. 7 E., Granite

Falls. Analyst. A. A. Hammer. Sample 119. (Shedd. 1913, p. 231, 

232, 247. pi. 21; Danner. 1966, p. 82. 305, 318, 321.) Limestone, 

dark-gray, coarsely crystalline. Index maps. Possible use: Portland 

cement, lime [implied].

960. Snohomish County. Permian. SWiNEi sec. 9. T. 30 N., R. 7 E., about 

3 miles northeast of Granite Falls. Shumway deposit. ( Landes, 1902, 

p. ^7; Danner, 1966, p. 82, 318, 322.) Limestone, gray, crystalline 

to organoclastic, fossiliferous; contains stringers of argillaceous material. 

Tonnage estimated. Index and geologic maps. Use: Flux, lime.

961, 962. Snohomish County. Permian. NEi NEi sec. 7, T. 32 N., R. 6 E., about 

10 miles northeast of town of Arlington. Bryant deposit. Analysts, 

K. A. Johnson, Anthony Centenero. ( Popoff, 1949a, p. 2-6, figs. 1, JJ; 

Danner, 1966. p. 82. 306-308.) General: Marble, light-gray to darkgray, fine-grained; contains calcite veins. Thin overburden. Index and 

geologic maps. Possible use: Agricultural.

961. Sample S 1 taken across 13 ft.

962. Sample S 2 taken across 10 ft.

963- 965. County, age, locality, maps, and use as in samples 961, 962. ( Hodge, 

1944, p. JL5, 58, pi. 6; Danner, 1966, p. 82, 306-^08.) Limestone, 

crystalline; maximum thickness 25-35 ft. Tonnage estimated.

966- 972. County, age, locality [except section and deposit], analysts, general 

remarks, and maps as in samples 961, 962. Limited reserves. 

966-971. SEi NEi sec. 16. Jack deposit. (Popoff, 1949a, p. 2-6, 

figs. 1, 4; Danner. 1966, p. 82, 306, 308-310, 311.) 

Geologic section. Possible use: Agricultural, glass, pulp 

and paper indnstry.

966. Sample S 1 taken across 18.0 ft.

967. Sample S 2 taken across 7.5 ft.

968. Sample S 3 taken across 26.6 ft.

969. Sample S 4 taken across 26.5 ft.

970. Sample S 5.

971. Sample S 6.

972. SWiNWi sec. 6. Rock Creek deposit. (Popoff. 1949a. p. 2, 

4, 5, 1, fig. 1; Danner, 1966, p. 82. 305. 306. 307.) 

Bed not less than 30 ft thick. Former use: Agricultural.

Washington Continued

973. Snohomish County. Late Jurassic or Early Cretaceous. NEi sec. 16, 

T. 27 N., R. 9 E., about 3 miles east of town of Gold Bar. Marble 

quarry area. ( Hodge, 1938c, p. 64, 65, pi. 10; Hodge, 1944, p. 15, 

pi. 6; Danner, 1966, p. 82. 348, 350-352, 353.) Limestone, white, 

coarsely crystalline; occurs in two or three bands 10-40 ft thick interbedded with siliceous sediments. Index and geologic maps, geologic 

section. Use: Agricultural, flux, calcium carbide manufacture, sugar 

refining, ornamental stone.

974- 979. Snohomish County. Late Jurassic or Early Cretaceous. T. 27 N., R. 9 E., 

2.5 miles east of Gold Bar. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. (Danner, 1966, p. 16, 19, 82, 

348-352, 353, 452, 464.) General: Limestone, black to gray, mostly 

oolitic, well-bedded; weathers light bluish gray. Chip sample. Index 

and geologic maps. Use [except sample 979]: Agricultural, flux, calcium carbide manufacture, sugar refining, ornamental stone.

974-976. SEi sec. 16, SWi sec. 15. Marble quarry area. Limestone, 

predominantly black, about 60 ft exposed.

974. Sample Sh 14-1 taken across 40 ft.

975. Sample Sh 14-2 taken across 30 ft.

976. Sample Sh 14-4 taken across 10 ft. 

977, 978. SEi sec. 16. Haystack quarry. Samples Sh 14-5, Sh 14-6

taken across 40 ft.

979. SEi sec. 16. Crystal Creek outcrop. Sample Sh 14-7.Limestone, crystalline; most beds 10 ft or less thick. Sample 

taken across 70 ft.

980- 982. Snohomish County. Jurassic and Cretaceous. T. 27 N., R. 9 E., near 

Gold Bar. Proctor Creek deposit. ( Danner, 1966, p. 82, 353-356. 

357, 358.) Limestone, black to gray; contains calcite veinlets; weathers 

light gray. Tonnage estimated. Index and geologic maps. Possible 

use: Agricultural, decorative stone.

980. NEi NEi sec. 21. Sample length 30 ft.

981. NEi NEi sec. 21. Sample length 135 ft.

982. NEi sec. 21. Sample length 36 ft. Log of drill hole 2. [For other 

analyses from same drill hole, see samples 333-335, group FI.]

983-985. Snohomish County. Holocene. SWiSWi sec. 1,SEi SEi sec. 2, T. 31 N., 

R. 10 E. Blackoak Creek deposit. Tufa, cream to light-brown, crumbly, 

porous; layers from a few inches to 15 ft thick, average 6 ft. Bulk density <2.25. Index and geologic maps. Former use: Agricultural.

983. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Sample Sh 1-1. (Danner, 1966, 

p. 16, 19, 82, 333, 436, 440,^41, 442, 452, 464.) Chip 

sample taken across 6 ft.

984, 985. ( Popoff, 1949c, p. 2-4, fig. 1; Danner, 1966, p. 82, 333, 

436, 440, 441. 442.)

984. Sample S 1, 5.0 ft thick.

985. Sample S 2 taken across 22 ft.

986-988. Snohomish County. NEi sec. 1, T. 31 N., R. 10 E., southeast of town of 

Darrington. Conn Creek deposit. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C.E. Harvey. (Danner, 1966, 

p. 16,19,82,333-335,452,464.) Limestone, dark-gray-blue, dense to 

organoclastic, oolitic and crystalline, massive to bedded. Chip sample. 

Index and geologic maps. Possible use: None, deposit small.

986. Sample Sh 10-1 taken across 75 ft.

987. Sample Sh 10-2 taken across 100 ft.

988. Sample Sh 10-3 taken across 160 ft.

989. County, locality [except quarter section], analysts, reference, maps, and 

use as in samples 986-988. NEiNWisec. 1. Sample Sh 9-1. 

[Dolomite] limestone, dark-gray; weathers dark golden brown; contains 

calcite veinlets. Chip sample taken across 220 ft.
168 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group ft), common-rock category Continued

Chemical analyses Continued

SiO, _ ____ .

Al,0, .

MgO __________

CaO ________ .

P,05 .

Total ___ .

Class _______ .

CaO/MgO ______

SiO, __.

A1.0, .

Fe.0, .

MgO _, ______ .

CaO ________ .

PjO5 ________ .

S _ ; _________ .

Total ___ .

Class _______ .

CaO/MgO ____ .

MgO ________ .

CaO ________ .

Total ___ .

Class ______ .

CaO/MgO ____ .

R.O. 8

MgO* _______ .

CaO ________ .

Total ___ .

Class _______ .

CaO/MgO _____ .

Insoluble 7 _____ .

MgO* .

CaO ________ .

Total ___ .

Class _______ .

CaO/MgO _____ .

990

46Fj31-19

. __ 1.6

. __ .3

. __ .3

1.9

. __ 52.7

. __ *.02

. __ *43.0

. __ [99.9]

. __ 1,2.97

. __ Calcite

1003

46Fj31-79

. __ 1.43

 | !.52

. __ .39

. __ 55.03

. __ .006

. __ 4 42.51

. __ [99.89]

. __ 1,2,96

1016

46Fj31-85

5 1 11

. __ ».49

___ 5.14

___ 49.97

___ 443.17

___ u[ 99.89]

___ 0,1,96

Magnesian

calcite

1029

46Fj33-64

. __ 2.64

___ .71

___ 21.70

___ 30.16

___ 44.79

___ 100.00

___ 1,2,93

_ __ Dolomite

1042

46Fj33-78

___ 2.36

___ .51

___ 21.24

___ 30.93

___ 44.96

___ 100.00

 __ 2.1,94

__ _ Dolomite

991

46Fj31-15

3.3 

.6 

.4 

1.0 

52.8 

*.03 

.179 

3 41.7

[100.0] 

2,3,94

Calcite

1004

46F,31-86

1.36 

1 1.20

<.001 

54.10 

<.001

43.29

[99.95] 

0,3.97

Calcite

1017

46Fj33-7

'6.3 

2.2 

45.1 

1.4 

*43.5

[98.5] 

3,6,83

Magnesite

1030

46Fj33-65

3.49 

1.01

21.87 

30.45 

43.18

100.00 

2,3,90

Dolomite

1043

46Fj33-79

3.06 

.46

22.25 

29.42 

44.81

100.00 

2,1,93

Dolomite

'Calculated from reported P. 

3 At 950»C.

992

46F2 31-17

2.9 

.8 

.5 

1.1 

52.6 

*.03 

.252 

3 41.6

[99.8] 

1,4,93

Calcite

1005

46Fj31-81

1.71 

1 .39

2.60 

52.08 

.004

4 42.78

[99.56] 

1,1,96

Magnesian 

calcite

1018

46F,41-289

«1.5

2.2 

22.1 

27.5 

*45.8

[99.1] 

0,3.95

Dolomite

1031

46Fj33-66

3.38 

.97

21.08 

30.65 

43.92

100.00 

2.3,92

Dolomite

1044

46Fj33-80

1.52 

.41

22.02 

30.17 

45.88

100.00 

1,1,96

Dolomite

993

46Fj31-16

2.2 

.5 

.4 

.9 

53.7 

*.02 

.157 

3 42.2

[100.1] 

1,2,95

Calcite

1006

46F,31-25

0.5

.6 

55.0 

*.01 

.031 

43.6

[99.8] 

0,0.99

Calcite

1019

W ashiugton Continued

994 995 996

46Fj31-14 46Fj31-13 46Fj31-12

5.3 2.0 2.9 

1.2 .5 1.1 

.9 .5 .5 

2.7 11.5 2.8 

49.2 41.3 50.8 

*.04 *.03 *.03 

.214 .111 .052 

3 40.4 3 43.8 3 41.9

[100.0] [99.7] [100.1] 

2,6,90 1.3,95 0,5,93

Magnesian Calcareous Magnesian 

calcite dolomite calcite

Washington Continued

1007 1008 1009

46Fj31-24 46Fj31-26 46Fj31-27

4.9 0.6 0.6 

1.1 .0 .0 

.7 .1 .1 

5.3 4.4 1.8 

46.0 50.4 53.6 

*.02 *.01 *.01 

.048 .008 .009 

41.5 44.1 43.8

[99.6] [99.6] [99.9] 

2,5,91 0,0,99 0.0.99

Magnesian Magnesian _ c*alcite calcite calcite

Washington Continued

1020 1021 1022

46F,41-290 46F.42-276 46Ft33-4 46F,33-5

'1.5

1.2 

29.4 

18.8 

"47.7

[98.6] 

0,3,95

Magnesian 

dolomite

1032

46Fj43-52

4.51 

1.07

21.77 

30.10 

42.55

100.00 

3,3,89

Dolomite

1045

46Fj33-81

0.53 

.46

21.55 

30.42 

47.04

100.00 

0,1,98

Dolomite

3.4 '4.7 *5.0 

*.9 .9 .9 

46.9 45.7 46.0 

.7 .8 .6 

45.2 *46.5 "46.4

[97.1] [98.6] [98.9] 

(2,3)86 3,3.89 3,3,89

Magnesite Magnesite Magnesite

Washington Continued

1033 1034 1035

46Fj33-67 46F.33-68 46F233-71

4.45 5.94 5.35 

1.34 1.47 .88

23.19 22.60 21.43 

29.98 29.73 30.02 

42.04 40.26 42.32

101.00 100.00 100.00 

2,4,87 3,4,83 4,3,88

Dolomite Dolomite Dolomite

W ashington C ontinued

1046 1047 1048

46F,33-82 46F,33-83 46F-33-84

5.71 3.55 4.52 

.57 1.04 .86

21.92 27.35 25.63 

25.76 23.72 23.58 

46.04 44.34 45.41

100.00 100.00 100.00 

5,3,92 2,3,91 3,3,93

 Magnesian Magnesian Dolomite . , . . , . dolomite dolomite

997

46F231-11

0.9 

.1 

.1 

9.1 

45.0 

*.02 

.018 

3 44.4

[99.6] 

1,1,97

Magnesian 

calcite

1010

46F,31-28

0.7 

.0 

.1 

3.0 

51.9 

'.01 

.005 

44.0

[99.7] 

1,0,99

Magnesian 

calcite

1023

46Fj41-35

'3.2 

1.6 

24.1 

29.2 

*40.9

[99.0] 

1.5,84

Dolomite

1036

46Fj33-72

4.08 

.77

21.09 

29.44 

44.62

100.00 

3,2,93

Dolomite

1049

46Fj33-85

3.36

.77

24.01 

27.33 

44.53

100.00 

2,2.92

Dolomite

998

46Fj31-10

1.9 

.7 

.4 

4.6 

49.6 

2 .02 

.190 

3 42.5

[99.9] 

0.3.94

Magnesian 

calcite

1011

46Fj31-31

1.2

.2 

.2 

1.4 

53.3

.030 

43.4

[99.7] 

1,1,98

Calcite

1024

46F,41-34

'1.5 

1.8 

22.9 

28.6 

*43.7

[98.5] 

0.3,91

Dolomite

1037

46Fj33-73

4.60 

.76

20.67 

30.37 

43.60

100.00 

3,2,91 

Dolomite

1050

46Fj33-87

4.05 

.81 

37.34 

9.95 

47.85

100.00 

3,2,94 

Dolomitic 

magnesite

999

46Fj31-9

1.2 

.5 

.3 

4.2 

50.4 

*.02 

.077 

3 43.1

[99.8] 

0.2,96

Magnesian 

calcite

1012

46F.31-30

0.6 

.0 

.2 

5.0 

49.5

.043 

44.4

[99.8] 

0,1.99

Magnesian 

calcite

1025

46F.33-60

7 3.95 

'.82 

*21.69 

30.66 

3 42.88

100.00 

3.2,89

Dolomite

1038

46F,33-74

3.17 

1.03

20.75 

29.67 

45.38

100.00 

1,3,95

Dolomite

1051

46F,33-88

3.31 

1.12

42.71 

3.67 

49.19

100.00 

1,3,95 

Dolomitic 

magnesite

4 Sample dried at 110°- 112«C; ignition loss 'Mainly SiCfc. 

l,OOOe-l,100°C. 'includes silica and insoluble silicates. 

SiOj . * iron and alumina .

1000

46Fj31-83

1.40 

1 .48

1.51 

53.44 

.004

4 42.87

[99.70] 

1,1.97

Calcite

1013

46Fj31-29

2.3 

.7 

.4 

4.3 

49.1 

2 .01 

.039 

42.8

[99.6] 

1,3,95

Magnesian 

calcite

1026

46Fj33-61

7 5. 00 

*1.00 

*21.81 

30.72 

3 41.47

100.00 

3.3.86

Dolomite

1039

46F.33-75

2.80 

.43

21.74 

30.20 

44.83

100.00 

2.1.94

Dolomite

1052

46F,33-89

4.17 

.86

22.62 

30.38 

41.97

100.00 

3,3.87

Dolomite

1001

46F231-82

2.70 

1 .36

.34 

53.92 

.005

4 42.29

[99.62] 

2,1.96

Calcite

1014

46F231-32

1.1

.0 

.2 

.5 

54.9

.012 

43.1

[99.8] 

1.0,98

Calcite

1027

46F,33-62

7 2.44 

'.75 

'20.73 

30.44 

S 45.64

100.00 

1.2,95

Dolomite

1040

46Fj33-76

2.96 

.50

23.64 

28.51 

44.39

100.00 

2,1,92

Dolomite

1053

46F ,33-90

3.55 

.66

22.78 

30.09 

42.92

100.00 

2,2,89

Dolomite

1002

46Fj31-80

1.36 

'.40

.36 

55.01 

.005

4 42.58

[99.72] 

1,1.96

Calcite

1015

46F,31-84

1.75 

} ^50

5.72 

48.85 

.004

4 43.29

[100.11] 

1,1,96

Magnesian 

calcite

1028

46F,33-63

7 2. 90 

'.64 

 21.68 

30.57 

3 44.03

99.82 

2.2,92

Dolomite

1041

46Fj33-77

2.28 

,58

21.59 

30.50 

45.05

100.00 

1,2.94

Dolomite

1054

46F,33-91

4.10 

.62

23.76 

28.95 

42.57

100.00 

3,2,88

Dolomite

*By difference. 

"Mainly CO,. 

uPjO5 = 0 .006 percent.
ANALYSES OF SAMPLES 169

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: UiO.BeO.BjOj.NaiO.KtO.Sc^Oj.ViC^.NiO.CoO.Z

O.TeCfe.CstO.I^Oj.CeCfe.Prt^ 

t; sample 1003. NatO = 0.05 percent]_____________________________________________________ ______

~ 1000 IQOl 1002 1003 1005 1015""~

TiCfe _ ____________ ____________________________________ 0.016

CrzO,_________________________________________________________ .0005

MnO _________________________________________________________ .068

CuO__________________________________________________________ .0016

SrO _____________________________________________________ .015

1001

0.008

1016

0.0072 0.0092 0.0034

.0005

.068

.0015

.017

0.01 0.006

.063

.0013

.018

.10

.0012

.020

.034

.0016

.013

.055 .029

.0020 .0011

.012 .015

DESCRIPTIVE NOTES

992.

993.

994.

995.

996.

997.

998.

1025-1051.

1000- 1003.

[Underscored page numbers in reference indicate source of analysis] 

Washington C ontinued

990-999. Snohomish County. SEiSEi sec. 14, T. 32 N., R. 8E., south of town 

ofFortson. Galbraith deposit. (Popoff, 1949b, p. 2. 5, 6, figs. 1, 2, 

4; Danner, 1966, p. 82, 326, 329-332, 333, 334.) GeneTal: Limestone, gray to black, massive. Mineralogy. Tonnage estimated. 

Index and geologic maps. Graphic representation of analysis. Possible 

use: Magnesia content too high for cement or chemical uses.

990. Sample BM 1 taken across 20.0 ft.

991. Sample BM 3 taken across 30.2 ft.

Sample BM 4 taken across 33.0 ft.

Sample BM 5 taken across 19.5 ft.

Sample BM 6 taken across 32.0 ft.

Sample BM 7 and 7a taken across 39.0 ft.

Sample BM 8 taken across 28.1 ft.

Sample BM 9 taken across 21.2 ft.

Sample BM 10 taken across 25.5 ft. 

999. Sample BM 11 taken across 16.0 ft.

County, locality, maps, and use as in samples 990-999. About 5 miles 

west of town of Darrington. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 

82, 326, 329-J332, 333, 334, 452, 464.) Limestone, light-gray to 

black, massive, finely crystalline; weathers gray or dark blue gray; 

contains calcite veinlets and black stylolites. Mineralogy. Chip 

sample. Tonnage estimated.

1000. Sample Sh 4-1 taken across 100 ft.

1001. Sample Sh 4-2, composite.

1002. Sample Sh 4-4, single specimen.

1003. Sample Sh 4-5, single specimen. 

Snohomish County. SEi sec. 21, SWj sec. 22, T. 32 N., R. 12 E.,

east of Darrington. Lime Mountain deposit. ( Thorsen, 1966, p. 341-

343; Danner, 1966, p. 82, 333.) Limestone, light-gray, coarsegrained; taken across 100 ft. Index and geologic maps. 

County, analysts, reference, remarks, and maps as in samples 1000-1003.

NEi NE* sec. 23, T. 32 N., R. 8 E.. about 5 miles west of Darrington.

Galbraith deposit. Sample Sh 4-3. Chip sample taken across 40 ft. 

Snohomish County. NE* NEi sec. 25, T. 32 N., R. 8 E.. south of town

ofFortson. Climax deposit. ( Popoff, 1949b, p. 2-5, 1, figs. 1, 3;

Danner, 1966, p. 82, 326-328, 329.) General: Limestone, gray to

nearly black, finely crystalline, massive; more than 100 ft thick.

Channel sample. Index and geologic maps. Possible use: None,

deposit small and impure.

1006. Sample BM 6 taken across 7.0 ft.

1007. Sample BM 7 taken across 24.0 ft.

1008. Sample BM 8 taken across 12.2 ft.

1009. Sample BM 9 taken across 13.0 ft.

Sample BM 10 taken across 23.0 ft.

Sample BM 12 taken across 19.8 ft.

Sample BM 13 taken across 9.0 ft.

Sample BM 14 taken across 20.0 ft.

Sample BM 15 taken across 14.0 ft.

1015, 1016. Snohomish County. NEi sec. 25, T. 32 N., R. 8E., about 5 miles 

west of Darrington. Climax claim. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Samples Sh 5-1, 

Sh 5-2. ( Danner, 1966, p. 16, 19, 82, 326-M8, 329, 452. 464.) 

Limestone, bluish-gray, finely crystalline; contains calcite veinlets. 

Chip sample taken across 35 ft. Index and geologic maps. Possible 

use: None, deposit small and impure.

1017. Stevens County. Precambrian, Edna Dolomite. Sec. 36. T. 30 N., 

R. 37 E., Turk area. Analyst, F. G. Mehl. Sample 23. (Bennett, 

1941, p. 3, 12. 20, 23, 24, pi. 2.) Magnesite. General mineralogy. 

Index and geologic maps.

1018, 1019. County, age, formation, analyst, reference, and maps as in sample 1017. 

SW4 sec. 15, T. 30 N., R. 38 E. Near Firminhac quarry. Samples 

36, 46. Dolomite, about 100 ft thick. General mineralogy. 

Stevens County. Precambrian, Stensgar Dolomite. Sec. 1, T. 29 N., 

R. 37 E. Turk deposit. Collector, Eugene Callaghan. (Campbell

Washington Continued

and Lootbourow, 1962, p. 3F, 8F, 18F. 40F, 45F, pis. 1, 2.) Magnesite, white. Tonnage estimated. Index and geologic maps, geologic sections, correlated columnar sections of area. Possible use: 

Refractories.

1021- 1024. County, age, formation, and locality as in sample 1020. Analyst, 

F. G. Mehl. (Bennett, 1941, p. 3, 12, 21, 23,^5, pis. 1, 2.) 

General mineralogy. Index and geologic maps. 

1021, 1022. Samples 73, 74. Magnesite, coarse-grained; channel

samples.

1023, 1024. Samples 75, 76. Dolomite.

Stevens County . Stensgar Dolomite. SEiswi sec. 36, T. 30 N., 

R. 37 E. , near town of Turk. Analyst, under direction of 

W. W. Holbrook. (Bennett, 1943, p. 3-6, 9, JU>. 21, pi. 1.) 

General mineralogy . Tonnage estimated . Index map, geologic 

section. Log of drill hole 1. Possible use of magnesite: Source of 

magnesium for light metal construction [implied] . [For other analyses 

from same drill hole, see samples 352-354, group FI-]

1004.

1005.

1006 - 1014.

1010.

1011.

1012.

1013.

1014.

Lab. No

1025.

1026.

1027.

1028.

1029.

1030.

1031.

1032.

1033.

1034.

1035.

1036.

1037.

1038.

1039.

1040.

1041.

1042.

1043.

1044.

1045.

1046.

1047.

1048.

1049.

1050.

1051.

125

124

123

122

121

120

119

118

117

116

101

100

99

98

96

95

94

93

92

91

90

89

88

87

86

84

105

. Dej

191

181

170

156.

155

152

150

140

129

126

94

92

87

85

72

71

69

65

58

53

49

47

44

41

26

10

4

pth(ft)

-204

-191

-180

,5-170

-156.5

-155

-152

-150

-140

-129

-101

- 94

- 92

- 87

- 78

- 72

- 71

- 69

- 65

- 58

- 53

- 49

- 47

- 44

- 41

- 16.5

- 10

1052- 1054.

1020.

[Dolomite] magnesitic dolomite, gray.

DoDolomite, gray and white. 

[Dolomite] magnesitic dolomite, gray. 

-156.5 [Dolomite] magnesitic dolomite, white. 

[Dolomite] magnesitic dolomite, gray. 

Dolomite, white. 

[Dolomite] magnesitic dolomite, lightgray.

[Dolomite] magnesitic dolomite, gray. 

[Dolomite] magnesitic dolomite, gray

and light- gray. 

Dolomite, gray. 

Dolomite, light- gray to gray. 

Dolomite, gray to light- gray . 

Dolomite, light-gray. 

[Dolomite] magnesitic dolomite, white

and gray.

[Dolomite] magnesitic dolomite, gray. 

[Dolomite] magnesitic dolomite, white

to light -gray.

Dolomite, yellowish and light-gray. 

[Dolomite] magnesitic dolomite, white

to gray .

[Dolomite] magnesitic dolomite, gray. 

[Dolomite] magnesitic dolomite, white,

gray, and brown. 

[Dolomite] magnesitic dolomite, white

and gray. 

[ Magnesian dolomite] dolomitic magnesite, gray. 

[ Magnesian dolomite] dolomitic magnesite, gray and white. 

[Dolomite] magnesitic dolomite, brown

and gray.

[Dolomitic magnesite] magnesite, white. 

[Dolomitic magnesite] magnesite,

white and light- gray. 

County, age, formation, locality, analyst, remarks, and use as in

samples 1025-1051. Drill hole 2. (Bennett, 1943. p. 3-6. 9-JL1. 21, 

pi. 1.) [Dolomite] magnesitic dolomite, light-gray. [For other 

analyses from same drill hole, see samples 1055-1085, this group; 

samples 89-92, group C; samples 355-360, group Ft .]

1052. Lab. No. 219. Depth 396-403 ft.

1053. Lab. No. 218. Depth 341-396 ft.

1054. Lab. No. 204. Depth 337-341 ft.
170 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F^,common-rock category Continued

Chemical analyses Continued

Insoluble

R_O$ *

CaO

Ignition loss 4 _ 

R,0, 2 .

Total

Class

CaO/MgO

R_0, z _

MgO 3 _ ______

CaO ________ _

Ignition loss 4 _ _ _

Total _ _ _ _

CaO/MgO ________

Insoluble * __

R.O, 2 _ _ _

Ignition loss 4 _ _ _ _

Total _____

Class ______ __

CaO/MgO __ ____

R,0, 2 

MgO* ___________

CaO ___ _ _ _ _

Ignition loss 4 __ _

Total _

Class _______ _

CaO/MgO _

1055

46F, 

33-92

4.67 

.75 

23.41 

29.41 

41.76

100.00 

3,2,87

Dolomite

1068

46F, 

33-106

4.63

.46

20.59

29.39

99.80

4,1,94

1081

46F, 

43-66

0.77 

42

22 .30

29.59

46.92

100.00

0,1,98

1094

46F, 

____33-_130 

6.28

.83

33.30

14.06

45.53

100.00

._ 5,2.91

Dolomitic

magnesite

1107

46F, 

33-144

3.75

.95

46.61

1.06

47.63

._ 100.00

._ 2,3,91

1056

46Ft 

33-93

2.43 

.49 

25.33 

26.65 

45.10

100.00 

2,1,93

Magnesian 

dolomite

1069

46F, 

33-107

8.80 

.65 

19.30 

28.08 

42.57

99.40 

8,2,89

Dolomite

1082

46F, 

33-116

0.36 

.48 

21.64 

30.56 

46.96

100.00 

0,1,98

Dolomite

1095

46F,

_ 33-131

5.92 

1.04 

44.25 

4.22 

44.57

100.00 

4,3,86

Dolomitic 

magnesite

1108

46Ft 

33-145

3.47 

1.17 

47.45 

.26 

47.65

100.00 

2,3,91

Magnesite

1057

46F» 

33-94

2.13 

.55 

22.80 

29.90 

44.62

100.00 

1,2,93

Dolomite

1070

46F, 

43-63

3.72 

.29 

21.56 

29.51 

44.92

100.00 

3,1,94

Dolomite

1083

46F, 

33-117

0.33 

.77 

38.41 

10.72 

49.77

100.00 

0,1,98

Dolomitic 

magnesite

1096

46F, 

33-132 

5.21 

.97 

45.80 

2.33 

45.69

100.00 

4,3,88

Magnesite

1109

33-146

4.42 

1.07 

47.09 

.55 

46.87

100.00 

3,3,89

Magnesite

1058

46F, 

33-95

4.09 

.62 

23.06 

29.93 

42.30

100.00 

3,2,88

Dolomite

1071

46F, 

33-108

1.38 

.30 

25.18 

26.88 

46.26

100 .00 

1,1.96

Magnesian 

dolomite

1084

46F, 

33-118

0.63 

.67 

23.18 

28.30 

47.22

100.00 

0,1,98

Dolomite

1097

46F, 

33-134 

2.08 

.94 

46.36 

1.06 

49.56

100.00 

1,3.95

Magnesite

1110

46F, 

33-147

3.94 

.89 

44.32 

3.90 

46.95

100.00 

2,3,91

Dolomitic 

magnesite

Washington Continued

1059 1060 1061

46F, 46F, 46F, 

33-96 33-99 33-100

4.49 4.84 0.51 

.72 .85 .65 

23.28 19.92 21.85 

29.52 27.59 30.23 

41.99 46.80 46.76

100.00 100.00 100.00 

3,2,87 3,6,91 0.1.98

Dolomite Dolomite Dolomite

Washington Continued

1072 1073 1074

46F, 46F, 46F, 

33-109 33-110 33-111

3.90 0.74 1.49 

.42 .31 .32 

20.24 22.15 21.93 

30.12 30.23 30.05 

45.32 46.57 46.21

100.00 100.00 100.00 

3.1,95 0,1,97 1,1,97

Dolomite Dolomite Dolomite

W ashington Continued

1085 1086 1087

46F, 46F, 46F, 

33-119 33-121 43-71

0.78 8.13 7.08 

.81 .74 1.33 

25.66 21.59 43.09 

25.31 29.24 5.22 

47.44 40.30 43.28

100.00 100.00 100.00 

0,1.98 7,2,84 5,4,84

Magnesian _ , . Dolomitic 6 Dolomite dolomite magnesite

W ashington Continued

1098 1099 1100

46FZ 46F, 46F, 

33-135 33-136 33-138

3.49 4.29 1.99 

1.07 1.27 1.82 

46.52 46.67 34.54 

1.19 1.05 14.22 

47.73 46.72 47.43

100.00 100.00 100.00 

2.3,91 2,4,89 0,3,94

Dolomitic Magnesite Magnesite 0 ° magnesite

W ashington Conti nue_T

1111 1112 1113

46F, 46F, 46F, 

33-148 33-151 33-154

3.80 2.85 5.40 

.89 .40 1.05 

43.48 22.04 42.64 

4.70 29.58 5.47 

47.13 45.13 45.44

100.00 100.00 100.00 

2,3,91 2,1,94 4,3.88

Dolomitic Dolomitic Dolomite magnesite magnesite

1062

46F, 

33-101

1.47 

.65 

22.52 

29.40 

45.96

100.00 

0.2.96

Dolomite

1075

46F, 

33-112

0.83 

.30 

21.95 

30.24 

46.68

100.00 

0,1,98

Dolomite

1088

46F, 

33-124

5.86 

1.41 

27.90 

22.51 

42.32

100.00 

4.4,86

Dolomitic 

magnesite

1101

46F, 

33-139

7.83 

.75 

45.99 

1.82 

43.61

100.00 

6.2.84

Magnesite

1114

46F, 

33-155

4.24 

.99 

46.75 

.78 

47.24

100.00 

3,3,90

Magnesite

1063

46F, 

33-102

1.29 

.58 

22.25 

29.66 

46.22

100.00 

0.2,96

Dolomite

1076

46F, 

43-64

1.41 

.66 

23.64 

28.14 

46.15

100.00 

0,2.96

Dolomite

1089

46F, 

33-125

2.57 

.99 

22.71 

28.08 

45.65

100.00 

1,3,95

Dolomite

1102

46F, 

33-140

5.73 

.75 

46.51 

.65 

46.36

100.00 

4,2,89

Magnesite

1115

46F, 

33-156

5.24 

.93 

42.01 

5.01 

46.81

100.00 

4,3.91

Dolomitic 

magnesite

1064

46F, 

33-104

5.92 

.40 

22.14 

30.00 

41.54 

100 .00 

5,1,87

Dolomite

1077

46F, 

33-113

0.53 

.53 

21.86 

30.29 

46.79

100.00 

0,1.98

Dolomite

1090

46F, 

33-126 

2.92 

.97 

22.21 

28.88 

45.02

100.00 

1,3,94

Dolomite

1103

46F, 

33-141

4.91 

.89 

47.83 

.14 

46.23

100.00 

3,3,88

Magnesite

1116

46F, 

33-158

0.54 

.68 

45.00 

2.78 

51.00

100.00 

0,1,98

Magnesite

1065

46Fj 

33-105

3.64 

.54 

23.10 

29.05 

43.67

100.00 

3.2,91

Dolomite

""1078"

46F, 

43-65

4.98 

.78 

20.44 

30.99 

42.81

100.00 

4,2,90

Dolomite

1091

46F, 

33-127

1.40 

.67 

21.86 

29.85 

46.22

100.00 

0.2,96

Dolomite

1104

46F, 

43-72

3.96 

1.11 

47.34 

.11 

47.48

100.00 

2,3,90

Magnesite

1117

46F, 

33-159

1.45 

.43 

31.32 

18.79 

48.01

100.00 

1,1,97

Magnesian 

dolomite

1066

46F, 

43-56

4.10 

.63 

23.40 

27.90 

43.97

100.00 

3,2.91

Dolomite

1079

46F, 

33-114

0.33 

.45 

22.22 

30.07 

46.93

100.00 

0,1,98

Dolomite

1092

46F, 

33-. 128

1.39

.40 

22.00 

30.18 

46.03

100.00 

1.1,96

Dolomite

1105

46F;

33-142

3.60 

1.00 

47.63 

.02 

47.75

100.00 

2.3,91

Magnesite

1118

46F, 

33-161

3.62

.70 

40.47 

7.47 

47.74

100.00 

2,2,93

Dolomitic 

magnesite

1067

46F, 

43-57

3.50 

.78 

21.64 

29.97 

44.11

100.00 

2,2,92

Dolomite

1080

46F, 

33-115

0.32 

.85 

44.43 

3.63 

50.77

100.00 

0.1,98

Dolomitic 

magnesite

1093

46F, 

33-129

2.40 

.54 

23.62 

27.78 

45.66

100.00 

1,2,95

Dolomite

1106

46F, 

33-143

3.24 

.89 

45.54 

1.68 

48.65

100.00 

2,3,93

Magnesite

1119

33-162

4.32 

.69 

22.43 

30.06 

42.50

100.00 

3.2,89

Dolomite

'includes silica and insoluble silicates, 

'iron and alumina. 

*By difference. 

4 At 950°C.
ANALYSES OF SAMPLES 171

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

1055-1085. Stevens County. Precambrian, Stensgar Dolomite. SEi SWi sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. Drill hole 2. (Bennett, 1943, p. 3-6, 9, 10, _11, 

21, pi. 1.) General mineralogy. Tonnage estimated. Index map, 

geologic section. Log of drill hole. Possible use of magnesite: Source 

of magnesium for light-metal construction [implied]. [For other 

analyses from same drill hole, see samples 1052-1054, this group; 

samples 89-92, group C; samples 355-360, group Fj.]

Lab. No. Depth (ft) 

1055. 203 306 -337

1056. 202

1057. 201

1058. 200

1059. 199

1060. 194

1061. 193

303 -306

293 -303

275 -293

259 -275

228 -242

226 -228

1062. 173 215 -226

1063. 171

1064. 157

1065. 156

1066. 155

208.5-214 

176 -181.5

171 -176 

170 -171

1067. 154 159.5-170

1068. 146

1069. 145

1070. 144

1071. 143

1072. 142

^1073. 141

1074. 140

1075. 139

1076. 138

142 -147

134 -142

124 -134

114 -124

112 -114

108 -112

106 -108

88 -106

84 - 88

1077. 136 73.5- 75

1078. 135 72.5- 73.5

1079. 134 68 - 72.5

1080. 133 67 - 68

1081. 132

1082. 131

1083. 130

1084. 129

1U85. 127

59 - 67

58 - 59

54 - 58

50 - 54

0 - 26

[Dolomite] magnesitic dolomite, lightgray to gray.

[Magnesitic dolomite] dolomitic magnesite, dark-gray.

[Dolomite] magnesitic dolomite, 

light-gray to gray.

[Dolomite] magnesitic dolomite, gray. 

Do.

Dolomite, gray.

[Dolomite] magnesitic dolomite, white 

to gray.

[Dolomite] magnesitic dolomite, white 

to dark-gray.

[Dolomite] magnesitic dolomite, gray.

[Dolomite] magnesitic dolomite, lightgray.

[ Dolomite] magnesitic dolomite, gray.

[Dolomite] magnesitic dolomite, darkgray; contains serpentine.

[Dolom te] magnesitic dolomite, white; 

conta ns chalcedony and olivine.

Dolomi e, white, light-green and pink.

Dolomi e, salmon-colored.

[Dolom te] magnesitic dolomite, white; 

conta ns chalcedony.

[Magnesitic dolomite] dolomitic magnesite, white.

Dolomite, white.

[Dolomite] magnesitic dolomite, white. 

Do. 

Do.

[Dolomite] magnesitic dolomite, white; 

contains green silicate.

[Dolomite] magnesitic dolomite, white.

Dolomite, white; contains serpentine.

[Dolomite] magnesitic dolomite, white.

[Dolomitic magnesite] magnesite, 

brown and white.

[Dolomite] magnesitic dolomite, white; 

contains chalcedony.

[Dolomite] magnesitic dolomite, white.

[Dolomitic magnesite] magnesite, white.

[Dolomite] magnesitic dolomite, white.

[ Magnesitic dolomite] dolomitic magnesite, white.

1086- 1094. County, age, formation, locality, analyst, remarks, and use as in

samples 1055-1085. Drill hole 3. ( Bennett. 1943, p. 3-6, 9, U, 12. 

21, pi. 1.) [For other analyses from same drill hole, see samples 

93-96, group C; samples 361, 362, group F t .]

Lab. No. Depth(ft) 

1086. 293 205 -229

1087. 227 70.5- 73

[Dolomite] magnesitic dolomite, gray

and white. 

[Dolomitic magnesite] magnesite, tan;

contains serpentine.

Washington Continued

Lab. No. Depth (ft)

1088. 226 65 - 70.5 Dolomitic magnesite, dark-gray and 

brown.

1089. 225 61 - 65 [Dolomite] magnesitic dolomite, white 

and light-gray.

1090. 224 43-61 [Dolomite] magnesitic dolomite, white 

and gray.

1091. 223 29 - 43 [Dolomite] magnesitic dolomite, lightgray.

1092. 222 23 - 29 [Dolomite] magnesitic dolomite, white, 

light-tan.

1093. 221 18 - 23 [Dolomite] magnesitic dolomite, lighttan.

1094. 220 0-18 Dolomitic magnesite, white.

1095-1110. County, age, formation, locality, analyst, remarks, and use as in

samples 1055-1085. Drill hole 4. ( Bennett, 1943, p. 3-7, 9, 12, 21, 

pi. 1.) Magnesite, medium-coarse texture. [For other analyses from 

same drill hole, see samples 363, 364, group F t .]

[Dolomitic magnesite] magnesite,

medium-gray.

Magnesite, medium- to dark-gray. 

Magnesite, light-brown. 

Magnesite, white and gray. 

Magnesite, light-brown. 

Dolomitic magnesite, light-gray. 

Magnesite, pale-gray. 

Magnesite, light-gray. 

Magnesite, light- to medium-gray. 

Magnesite, light-brown. 

Magnesite, dark-gray. 

Magnesite, brown. 

Magnesite, dark-gray. 

Magnesite, brown. 

Magnesite, brown and gray. 

[Dolomitic magnesite] magnesite,

white, brown, and gray.

1111-1117. County, age, formation, locality, analyst, remarks, and use as in

samples 1055-1085. Drill hole 5. (Bennett. 1943, p. 3-7.9.12^13, 

2l,pl.l.) Rock, medium-coarse texture. [For other analyses from 

same drill hole, see sample 97, group C; samples 365-371, group Fj.]

Lab. No. Depth (ft)

1111. 282 266 -267 [Dolomitic magnesite] magnesite, 

white.

1112. 279 222 -231 [Dolomite] magnesitic dolomite, white.

1113. 273 113.5-117 [Dolomitic magnesite] magnesite, 

brown.

1114. 272 111 -113.5 Magnesite, dark-gray.

1115. 271 71 -111 [Dolomitic magnesite] magnesite, 

white, friable.

1116. 250 46 - 59 Magnesite, white, friable.

1117. 249 35 - 46 [Magnesitic dolomite] dolomitic magnesite, white, friable.

1118. County, age, formation, locality, analyst, remarks, and use as in samples 

1055-1085. Drill hole 6. ( Bennett, 1943, p. 3-6, 9, JL3, 21. pi. 1.) 

[Dolomitic magnesite] magnesite, light-gray; depth 24-55 ft.

1119. County, age, formation, locality, analyst, remarks, and use as in samples 

1055-1085. Drillhole 7. Lab. No. 270. (Bennett, 1943. p. 3-7, 9, 

13, 21, pi. 1.) [Dolomite] magnesitic dolomite, light- to dark-gray, 

medium-coarse texture; depth 122-136 ft. [For other analyses from 

same drill hole, see samples 1120-1125, this group.]

Lab. No

1095.

1096.

1097.

1098.

1099.

1100.

1101.

1102.

1103.

1104.

1105.

1106.

1107.

1108.

1109.

1110.

247

246

244

243

242

240

238

237

236

235

234

233

232

231

230

229

. De

200

170

137

123

121

111

70

57

32

29

22

20

18

15

12

0

pth(ft)

-219.5

-200

-140

-137

-123

-113

-103

- 70

- 57

.5- 32

- 29.5

- 22

- 20

- 16

- 15

- 12
172 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

Insoluble 1

RiO, 1 _____ 

MgO*

CaO

Ignition loss 4

Total

Class

CaO/MgO

Insoluble *

Rz<V __________

CaO 

Ignition loss 4 _ ____

Total _ ___

Class

CaO/MgO

Insoluble '

R2°S 2 _______ 

MgO s 

Ignition loss 4 _ _ ___

Total

Class

CaO/MgO

Insoluble 1

R2<V _________ _.

MgO* _________ . CaO _ ____ ,

Ignition loss 4 _ ____.

CaO/MgO _ _ _ _,

R,0, 1 

MgO s 

CaO __________

Ignition loss 4 ______

Total _______

Class _______ ___

CaO/MgO _ __ _ .

1120

46F, 

33-163

3.03 

.60 

21.52 

30.70 

44.15

100.00 

2,2,92

Dolomite

1133

46F, 

33-176

3.67 

.90 

46.82 

.80 

47.81

100.00 

2,3,91

1146

46F,

3.48 

.97 

46.84 

1.03 

47.68

100.00 

2,3,91

Magnesite

1159

46F, 

33-208

2.60

.74

21.81

30.37

44.48

100.00

1,2,93

_ Dolomite

1172

46F,

33-220

4.20

1.02

22.54

29.98

42.26

100.00

_ 2,3,88

Dolomite

1121

46F, 

33-164

2.96 

.86 

34.76 

14.38 

47.04

100.00 

2,3,94

Dolomitic 

magnesite

1134

46F| 

33-177

3.67 

.75 

46.52 

.74 

48.32

100.00 

2,2,92

Magnesite

1147

46F, 

33-188

4.07 

1.00 

45.61 

2.27 

47.05

100.00 

2,3.90

Magnesite

1160

46F, 

33-209

5.56 

1.20 

21.97 

30.57 

40.70

100.00 

4,4,85

Dolomite

1173

46F, 

33-221

4.45 

1.15 

22.02 

30.47 

41.91

100.00 

3,3,87

Dolomite

1122

46F, 

33-165

4.62 

.90 

45.23 

2.84 

46.41

100.00 

3,3,89

Magnesite

1135

46F, 

33-178

3.63 

.85 

46.65 

.80 

48.07

100.00 

2,2,92

Magnesite

1148

46F, 

33-192

6.79 

.59 

21.74 

30.02 

40.86

100.00 

6,2,85

Dolomite

1161

46F, 

33-210

2.48 

.48 

22.28 

30.76 

44.00

100.00 

2,1,92

Dolomite

1174

46F, 

43-98

5.80 

1.48 

22.62 

30.00 

40.10

100.00 

3,4,83

Dolomite

1123

46F, 

33-166

4.82 

.70 

44.89 

3.62 

45.97

100.00 

4,2,89

Dolomitic 

magnesite

1136

46F| 

43-75

3.55 

.83 

46.01 

1.53 

48.08

100.00 

2,2,92

Magnesite

1149

46F| 

43-78

1.98 

.54 

22.19 

30.42 

44.87

100.00 

1,2,94

Dolomite

1162

46F, 

33-212

6.32 

.35 

21.77 

30.28 

41.28

100.00 

6,1,86

Dolomite

1175

46F, 

33-222

1.98 

.73 

21.78 

30.46 

45.00

100.00 

1,2,94

Dolomite

'includes silica and insoluble silicates. 

2 Iron and alumina.

Washington Continued

1124 1125 1126

46F, 46F, 46F, 

33-167 33-168 33-169

5.80 3.98 2.02 

.82 .91 .89 

40.99 45.20 45.61 

6.17 2.58 2.09 

46.22 47.33 49.39

100.00 100.00 100.00 

4.2,90 2.3,91 0.3.95

Dolomitic ,, Macnesite Magnesite magnesite °

Washington Continued

1137 1138 1139

46F, 46F, 46F, 

33-179 33-180 33-181

6.95 4.50 5.77 

1.38 .79 .93 

40.99 45.76 46.36 

7.65 2.37 1.86 

43.03 46.58 45.08

100.00 100.00 100.00 

5,4,84 3,2,89 4,3,86

Dolomitic , . Macnesite Magnesite magnesite °

Washington Continued

1150 1151 1152

46F, 46F, 46F, 

33-194 33-195 33-196

6.23 3.56 8.05 

.86 1.00 1.00 

44.06 46.54 43.27 

2.87 .82 2.94 

45.98 48.08 44.64

100.00 100.00 99.90 

5,3,88 2,3,92 6,3,88

Magnesite Magnesite Magnesite

Washington Continued

1163 1164 1165

46F, 46F| 46F| 

43-95 43-96 33-213

0.55 0.20 3^2 

.19 .25 .28 

22.13 22.14 22.16 

30.55 30.70 30.76 

46.58 46.71 43.38

100.00 100.00 100.00 

0,1,97 0,0,98 3.1,91

Dolomite Dolomite Dolomite

Washington Continued

1176 1177 1178

46F| 46F, 46F, 

33-223 43-99 43-100

2.26 2.00 2.73 

.90 .64 .77 

21.42 20.96 20.20 

30.18 30.93 32.00 

45.24 45.47 44.30

100.00 100.00 100.00 

1,3,94 1,2,95 1,2,93

Dolomite Dolomite Dolomite

1127

46F, 

33-170

0.75 

.71 

45.76 

2.03 

50.75

100.00 

0,1,98

Magnesite

1140

46F, 

33-182

3.34 

.87 

43.96 

4.26 

47.57

100.00 

2,3,92

Dolomitic 

magnesite

1153

46F, 

33-198

1.26 

.87 

46.68 

.74 

50.45

100.00 

0,2,96

Magnesite

1166

46F| 

33-214

5.05 

.47 

22.15 

30.50 

41.83

100.00 

4,1,87

Dolomite

1179

46F, 

43-101 

2.95 

.86 

20.13 

31.34 

44.72

100.00 

2,3,94

Dolomite

1128

46F| 

33-171

4.75 

.88 

45.22 

3.04 

46.11

100.00 

3,3,89

Magnesite

1141

46F| 

43-76

4.58 

1.74 

39.91 

7.78 

45.99

100.00 

2,5,89

Dolomitic 

magnesite

1154

46F, 

33-199

1.80 

.78 

45.73 

2.11 

49.58

100.00 

0,2,95

Magnesite

1167

46F, 

33-215

3.72 

.57 

22.04 

30.26 

43.41

100.00 

3,2,91

Dolomite

1180

46F, 

33-225

6.56 

1.17 

40.76 

8.61 

42.90

100.00 

3,3,84

Dolomitic 

magnesite

1129

46F, 

33-172

4.39 

.80 

46.25 

1.53 

47.03

100.00 

3,2.90

Magnesite

1142

46F, 

33-183

4.32 

1.02 

36.67 

12.66 

45.33

100.00 

3,3,90

Dolomitic 

magnesite

1155

46F, 

33-200

4.54 

.96 

44.50 

3.33 

46.67

100.00 

3,3,90

Dolomitic 

magnesite

1168

46F| 

33-216

3.55 

.74 

22.22 

30.25 

43.24

100.00 

2,2,90

Dolomite

1181

46F, 

33-226

5.14 

1.03 

46.58 

1.67 

45.58

100.00 

3,3,87

Magnesite

1130

46F, 

33-173

5.65 

.79 

42.45 

3.67 

47.44

100.00 

4,2,91

Dolomitic 

magnesite

"1143 "

46F, 

33-184

4.92 

.64 

30.59 

17.98 

45.87

100.00 

4,2,92

Magnesian 

dolomite

1156

46F, 

33-202

6.50 

.87 

20.59 

31.58 

40.46

100.00 

5,3,85

Dolomite

1169

46Fi 

33-217

4.05 

.85 

22.13 

30.32 

42.65

100.00 

3,2,89

Dolomite

1182

46F, 

33-227

4.15 

1.28 

38.98 

10.44 

45.15

100.00 

2,4,88

Dolomitic 

magnesite

1131

46F| 

33-174

4.65 

.79 

46.24 

1.56 

46.76

100.00 

3,2,90

Magnesite

1144

46F| 

33-185

4.21 

.76 

43.68 

4.02 

47.33

100.00 

3,2,91

Dolomitic 

magnesite

1157

46F| 

33-206

6.28 

.82 

22.67 

29.97 

40.26

100.00 

5,2,84

Dolomite

1170

46F, 

33-218

5.53 

.72 

21.01 

28.97 

43.77

100.00 

4,2,91

Dolomite

1183

46F, 

33-228

3.82 

1.12 

46.78 

1.00 

47.28

100.00 

2,3,90

Magnesite

1132

46F, 

33-175

3.76 

.66 

45.58 

1.12 

48.88

100.00 

3,2,94

Magnesite

1145

46F, 

33-186

4.10 

.78 

46.93 

.62 

47.57

100.00 

3,2,91

Magnesite

1158

46F, 

33-207

4.29 

.94 

22.13 

30.37 

42.27

100.00 

3,3,88

Dolomite

1171

46F, 

33-219

3.75 

.78 

21.95 

30.36 

43.16

100 .00 

2,2,90

Dolomite

1184

46F, 

33-229

3.56 

1.27 

45.66 

2.15 

47.36

100.00 

1,4,91

Magnesite

*By difference. 

4 At y.50°C.
ANALYSES OF SAMPLES 173

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued W ashington Continued

1120-1126. Stevens County. Precambrian, Stensgar Dolomite. SElSWi sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. Drillhole 7. (Bennett. 1943, p. 3-7. 9, 13, pi. 1.) 

Rock, medium-coarse texture. General mineralogy. Tonnage estimated. Index map, geologic section. Log of drill hole. Possible use 

of magnesite: Source of magnesium for light-metal construction 

[implied]. [For another analysis from same drill hole, see sample 

1119, this group.]

Lab. No.

1152. 327

1153. 325

1154. 324

1155. 322

Magnesite, white, gray, and brown. 

Magnesite, white with gray. 

Magnesite, light-gray and white. 

[Dolomitic magnesite] magnesite, 

white and brown.

1156.

Lab. No. Depth (ft) 

1120. 269 104 -122

1121. 268 86-104

1122.

1123.

256

255

82

64

86

82

1124. 254

1125. 253

48 - 64

[Dolomite] magnesitic dolomite, lighttan.

Dolomitic magnesite, light-gray, 

friable.

Magnesite, bluish-gray to brown.

[Dolomitic magnesite] magnesite, 

bluish-gray, friable.

[Dolomitic magnesite] magnesite, 

light-gray, friable.

Magnesite, while, friable.

County, age, formation, locality, analysts, remarks, and use as in 

samples 1120-1125. Drillhole 11. (Bennett, 1943, p. 3-7. 9, ^4, 

pi 1.) Dolomite, gray; depth, 173-182 ft. [For other analyses from 

same drill hole, see samples 106-108, group C; samples 375-377, 

group Fi.J

1157-1179. County, age, formation, locality, analyst, remarks [except texture], and 

use as in samples 1120-1125. Drill hole 12. (Bennett, 1943, p. 3-6, 

9, J.4. 15, pi. 1.) [For other analyses from same drill hole, see 

samples 109-113, group C; samples 378-380, group Fj.]

1126-1136. County, age, formation, locality, analyst, reference, remarks, and use 

as in samples 1120-1125. Drillholes.

Lab. No

1126.

1127.

1128.

1129.

1130.

1131.

1132.

1133.

1134.

1135.

1136.

267

266

265

264

263

262

261

260

259

258

257

. Pet

240

219.

147

123

115

100

94

67

39

19

0

)th(ft)

-284

5-240

-182

-147

-123

-115

-100

- 94

- 67

- 39

- 19

Magnesite ,

Do.

Magnesite,

Magnesite,

gray to white .

gray and tan.

gray and tan, sugary.

[Dolomitic magnesite] magnesite,

white .

Magnesite,

Magnesite,

Magnesite ,

Magnesite,

Magnesite,

Magnesite,

gray and brown.

dirty white.

gray and brown, banded

tan to nearly white.

gray, partly friable.

white, sandy.

Lab. No.

. 392

. 391

1159. 390

1160. 389

1161. 388

1162. 386

1163. 385

1164. 384 237 -239

1137-1147. County, age, formation, locality, analyst, reference, remarks, and use 

as in samples 1120-1125. Drill hole 9.

[Dolomitic magnesite] magnesite, darkgray and light- gray.

Magnesite, dark-gray with tan.

Magnesite, gray.

[Dolomitic magnesite] magnesite, 

gray.

[Dolomitic magnesite] magnesite, 

gray and tan; contains serpentine.

[Dolomitic magnesite] magnesite, 

light-gray with tan.

[ Magnesitic dolomite] dolomitic magnesite, light-gray.

[Dolomitic magnesite] magnesite, darkgray, tan, white.

Magnesite, dark-gray, tan, and white.

Magnesite, dark-gray and tan. 

Do.

1148-1155. County, age, formation, locality, analyst, remarks, and use as in samples 

1120-1125. Drillhole 10. (Bennett. 1943, p. 3-7, 9, 14, pi. 1.) 

[For other analyses from same drill hole, see samples 98-105, group C; 

samples 372-374, group Fj.]

Lab. No

1137.

1138. 

1139. 

1140.

1141.

1142.

1143.

1144.

1145. 

1146. 

1147.

320

319 

318 

317

316

288

287

286

285 

284 

283

. Pep 

233

213 

184 

174

144

132

122

98

64 

32 

0

»th(ft) 

-250

-233 

-213 

-184

-156

-144

-132

-122

- 98 

- 64 

- 32

1165.

1166.

1167.

1168.

1169.

1170.

1171.

383

381

380

379

378

377

376

229

205

184

177

157

154

137

-237

-216

-205

-184

-177

-157

-154

1172. 375 123 -137

1173. 374

1174. 373

1175. 372

1176. 371

1177. 370

1178. 369

1179. 368

[Dolomite] magnesitic dolomite, white. 

[Dolomite] magnesitic dolomite, gray

with white.

303 -305 [Dolomite] magnesitic dolomite, darkgray and white.

284 -303 [Dolomite] magnesitic dolomite, darkgray. 

274 -284 [Dolomite] magnesitic dolomite, gray

and white.

262 -268 [Dolomite] magnesitic dolomite, gray. 

239 -262 [Dolomite] magnesitic dolomite, white;

contains asbestos. 

[Dolomite] magnesitic dolomite, white;

contains asbestos.

[Dolomite] magnesitic dolomite, white. 

[Dolomite] magnesitic dolomite, darkgray. 

Do. 

Do.

[Dolomite] magnesitic dolomite, darkgray; contains calcite. 

Dolomite, light-gray; contains calcite. 

[Dolomite] magnesitic dolomite, darkgray; contains calcite. 

[Dolomite] magnesitic dolomite, darkgray.

107 -123 Do. 

100 -107 [Dolomite] magnesitic dolomite, gray;

contains serpentine. 

95 -100 [Dolomite] magnesitic dolomite, white

to light-gray.

77 - 95 Dolomite, gray. 

55 - 77 Dolomite, white. 

48 - 55 Dolomite, tan. 

12 - 48 Dolomite, white.

1180-1184. County, age, formation, locality, analyst, remarks [except texture], 

and use as in samples 1120-1125. Drill hole 13. ( Bennett, 1943, 

p. 3-7, 9, 15, 16, 21, pi. 1.) General: Magnesite, light-gray to 

yellowish, medium crystalline; for the most part massive; occasional 

banding. [For other analyses from same drill hole, see samples 

1185-1206, this group; samples 114, 115, group C; samples 381- 

385, group FI.]

Lab. No.

1148. 337 259 -263

1149. 336 244 -259

Lab. No.

1180. 434 196 -206

1150. 329

1151. 328

115

100

-134

-115

[Dolomite] magnesitic dolomite,

gray. 

[Dolomite] magnesitic dolomite,

grayish; contains serpentine. 

Magnesite, gray, brown, and white. 

Do.

1181.

1182.

1183.

1184.

433

432

431

430

184

180

172

168

-196

-184

-180

-172

[Dolomitic magnesite] magnesite,

gray.

Magnesite, gray with white. 

[Dolomitic magnesite] magnesite,

gray; contains calcite. 

Magnesite, gray. 

Magnesite, dark-gray.

487-187 O - 73 - 12
174 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2),common-rock category Continued

Chemical analyses Continned

Washington Continued

1186 1187 1188 1190 1193 1194 1197

Insoluble *

RjOj 2 __.

CaO

Ignition loss 4 _ _ .

Class _ _ .

CaO/MgO _

46F2 

33-230

. __ 3.93

. __ 1.46

. _ 36.23

. _ 13.28

. __ 45.10

100.00

. _ 1.4,89

Dolomitic

magnesite

46F2 

33-231

3.04

1.35

46.33

1.38

47.90

100.00

1,4,91

16F2 

33-233

2.84

1.66

23.80

28.10

43.60

100.00

0,5,90

46F2 

33-234

1.65

1.79

45.41

1.95

49.20

100.00

0,3,94

46F2 

33-235

0.95

1.24

45.42

1.95

50.44

100.00

0.2,97

46F2 

33-236

1.90

1.10

45.87

1.95

49.18

100.00

0,3.94

46F2 

33-238

4.70

1.40

46.93

1.10

45.87

100.00

2.4,87

46F2 

33-239

1.96

1.36

43.72

4.02

48.94

100.00

0,3,94

Dolomitic

magnesite

46F2 

33-240

5.00

1.33

45.68

2.55

45.44

100.00

3.4,87

Magnesite

46F2 

33-241

1.97

1.82

23.21

29.30

43.70

100.00

0,3,91

Dolomite

46F2 

33-242

1.43

2.17

23.04

29.91

43.45

100.00

0.2.90

Dolomite

46F2 

43-105

1.95

4.17

25.26

29.00

39.62

100.00

0.3,82

Dolomite

46F2 

33-244

5.65

2.23

23.98

27.25

40.89

100.00

2,7,84

Magnesian

dolomite

Washington Continued

Insoluble 1

RjOs 2

MgO' ,

1198

46F2 

33-245

____ 2.19

__ 2.04

____ 35.55

____ 14.08

____ 46.14

1199

46F2 

33-246

3.78 

1.16 

35.38 

14.48 

45.20

1200

46F2 

33-247

5.70 

1.10 

46.60 

1.65 

44.95

1201

46F2 

33-248

2.73 

1.37 

28.64 

22.48 

44.78

1202 1203

46F2 46F2 

33-249 33-250

1.15 2.28 

1.31 .94 

21.80 26.57 

29.70 24.45 

46.04 45.76

1204

46F2 

33-251

4.42 

1.17 

46.40 

1.31 

46.70

1205

46F2 

33-252

3.25 

.77 

46.52 

1.46 

48.00

1206 1207

46F2 46F2 

33-253 33-255

3.42 5.37 

.88 1.17 

46.69 39.09 

1.26 10.01 

47.75 44.36

1208

46F2 

33-256

3.73 

1.02 

43.82 

4.50 

46.93

1209

46F2 

33-257

3.79 

.99 

46.82 

1.00 

47.40

1210 

46F2 

33-258

6.06 

1.30 

40.81 

8.13 

43.70

Total ______ 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00

Class 

CaO/MgO

0.4,91 2.3,90 4.3.86 0.4,91 0.2.96 1,3.94 2.3,89 2,2,92 2.3,91 3,3,87 2,3,91 2,3,91

100.00

4.4.85

Dolomitic Dolomitic Dolomitic Maenesite magnesite magnesite ° magnesite Dolomite . f Magnesite Magnesite Magnesite dolomite e o o

Dolomitic Dolomitic Dolomitic Magnesite magnesite magnesite ° magnesite

Washington Continued

R20S 2 .

MgO' .

1211

46F, 

33-260

____ 7.25

____ 1.04

____ 34.62

_ _ 13.83

____ 43.26

1212

46F2

33-261

0.36

.70

46.29

1.33

51.32

1213

46FZ 

33-262

.80

43.46

4.67

50.83

1214

46F2 

33-263

.87

46.28

51.26

1215 1216

46F2 46F, 

33-264 33-265

.80 .88

47.08 45.54

49.90 51.03

1217

46F2 

33-266

3.00

.76

37.27

46.83

1218 1219

46F2 46FZ 

43-112 43-114

8.38 6.90

.54 .68

20.72 22.79

28.85 30.68

41.51 38.95

1220

46F2 

43-116

5.92

1.54

43.99

4.57

43.98

1221

46FZ 

33-271

5.77

1.38

41.89

7.46

43.50

1222

46F2 

33-272

4.54

.98

44.76

3.62

46.10

1223

46F, 

33-273

4.80

1.36

34.09

16.00

43.75

Class

CaO/MgO .

100.00

6.3,86

Dolomitic

100.00

0.1,99

100.00

0,0,99

100.00 100.00 100.00

0.1,98 0,2,95 0.1,98

100.00

2,2,93

100.00

7.2.87

100.00 100.00 100.00 100.00

6,2,81 3,5,85 3,4.84 3.3.89

100.00

3,4,87

Dolomitic ,, Dolomitic _ , _ , Dolomitic Dolomitic Dolomitic Magnesian Maenesite Magnesite Maenesite Maenesite Dolomite Dolomite . , , magnesite ____magnesite magnesite magnesite magnesite magnesite dolomite

1224 1225 1226 1227

Washington Continued

1228 1229 1232 1233 1234 1235 1236

Insoluble

MgO» _______

Total ____

Class ________

CaO/MgO

46F2 

33-274

. __ 4.08

. __ 1.07

. __ 38.01

._ _ 11.52

. _ 45.32

. __ 100.00

._ _ 2,3,89

Dolomitic

magnesite

46F2 

33-275

5.29

.88

45.07

3.44

100.00

4,3,87

Dolomitic

magnesite

46F2 

33-276

6.56

1.04

41.93

7.17

100.00

5.3.84

Dolomitic

magnesite

46F2 

33-277

6.34

.84

45.60

2.68

44 54

5,2,86

46F2 

33-278

.87

37.71

10.95

44 74

4.3,88

Dolomitic

magnesite

46F2 

33-279

6.38

1.00

46.52

1.25

44 85

5,3,86

46F2 

33-280

4.83

.83

37.82

11.52

100.00

3,2,89

Dolomitic

magnesite

46F2 

33-281

6.44

.92

45.92

1.60

100.00

5,3,86

46F2 

33-282

7.43

1.04

41.08

8.07

100.00

6,3,83

Dolomitic

magnesite

46F2 

33-283

3.05

.96

45.78

1.70

100.00

1.3,93

46F, 

33-284

1.00

.87

41.45

7.15

100.00

0,2.97

Dolomitic

magnesite

46F2 

33-285

1.60

.78

25.95

25.50

100.00

0,2.95

Magnesian

dolomite

46F2 

33-286

5.16

1.40

22.08

29.14

3,4,88

Washington Continued

1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249

Insoluble i

RjOj 2

CaO

Ignition loss 4

Total ___ .

46F2 4 

43-118

5.07

1.05

22.91

28.44

42.53

100.00

6F2 4 

33-287

3.04

1.13

41.32

6.95

47.56

100.00

6F2 4 

33-288

1.09

41.07

7.37

47.08

100.00

6F2 4 

33-291

1.18

42.84

44.63

100.00

6F2 4 

33-293

5.58

1.33

34 91

44.31

100.00

L6F2 

33-294

1.54

43.43

100.00

46F2 

33-295

1.08

41.77

45.66

100.00

16F2 4 

33-296

1.00

33.90

44.77

100.00

t6F2 4 

33-297

1.08

43.93

99.90

t6F2 

33-298

1.14

33.81

16.65

41.83

100.00

46F2 

33-299

1.05

45.97

47.01

100.00

46F2 

43-119

1.31

20.76

43.80

100.00

46F2 

43-120

4 97

1.06

42.42

100.00

Class. 

CaO/MgO_

3,3,88 1,3,92 2,3.92 4,3,86 3.4,88 3.5.84 3,3,88 3,3.89 4,3,86 5,3,84 2,3,90 1.4.88

_. , Dolomitic Dolomitic Dolomitic Dolomitic Dolomitic Dolomitic Magnesian Dolomitic Magnesian , Magnesia

______ Dolomite , ° , ° Maenesite , ,

______________magnesite magnesite magnesite magnesite magnesite magnesite dolomite magnesite dolomite °^___dolomite

3,3.90

iian Calcareous 

dolomite

'includes silica and insoluble silicates . 

* Iron and alumina.

*By difference. 

4 At 950°C.
ANALYSES OF SAMPLES 175

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

1185-1206. Stevens County. Precambrian, Stensgar Dolomite. SEiSWi sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. Drill hole 13. ( Bennett, 1943, p. 3-7, 9, ^5, _1§, 

21, pi. 1.) General: Magnesite, light-gray to yellowish, medium 

crystalline; for the most part massive; occasional banding; mineralogy. 

Tonnage estimated. Index map, geologic section. Log of drill hole. 

Possible use of magnesite: Source of magnesium for light-metal construction [implied]. [For other analyses from same drill hole, see 

samples 1180-1184, this group; samples 114, 115, group C; samples 

381-385, group Fj.]

Lab. No. Depth (ft)

1185. 429 165 -168 [Dolomitic magnesite] magnesite, darkgray.

1186. 428 161 -165 Magnesite, dark-gray.

1187. 425 152 -155 [Dolomite] magnesitic dolomite, white 

and gray.

1188. 424 150 -152 Magnesite, white and gray.

1189. 423 147 -150 Magnesite, brown.

1190. 422 144 -147 Magnesite, white and gray.

1191. 420 140 -143 Magnesite, gray.

1192. 419 139 -140 [Dolomitic magnesite] magnesite, 

light-brown.

1193. 418 135 -139 Magnesite, gray.

1194. 417 119 -135 [Dolomite] magnesitic dolomite, gray.

1195. 416 109 -119 Do.

1196. 415 100 -109 [Dolomite] dolomitic magnesite, darkgray; contains pyrite.

1197. 412 82 - 87 Magnesitic dolomite, white, gray, and 

brown.

1198. 411 78-82 [Dolomitic magnesite] magnesite, darkgray; contains .calcite.

1199. 410 71 - 78 [Dolomitic magnesite] magnesite, darkgray and tan.

1200. 409 61 - 71 Magnesite, white to light-gray.

1201. 408 53 - 61 Dolomitic magnesite, gray and brown.

1202. 407 34 - 53 [Dolomite] magnesitic dolomite, white, 

gray, and brown.

1203. 406 20-34 [Magnesitic dolomite] dolomitic magnesite, light-brown with light-gray.

1204. 405 15 - 20 Magnesite, light-brown.

1205. 404 9-15 Magnesite, white and light-gray.

1206. 403 0-9 Do.

1207- 1217. County, age, formation, locality, analyst, reference, and use as in 

samples 1185-1206. Drill hole 14. General: Magnesite, predominantly white; for the most part massive; occasional banding; mineralogy. 

Tonnage estimated. Index map, geologic section. Log of drill hole. 

[For other analyses from same drill hole, see samples 116-121, group C; 

samples 386, 387, group F!.]

Lab. No. Depth (ft)

1207. 450 108 -120 [Dolomitic magnesite] magnesite, gray 

with brown and white.

1208. 449 102 -108 [Dolomitic magnesite] magnesite, gray.

1209. 448 97 -102 Magnesite, gray.

1210. 447 88 - 97 [Dolomitic magnesite] magnesite, gray, 

brown and white.

1211. 445 66 - 81 Dolomitic magnesite, white, gray, and 

multicolored.

1212. 444 62-66 Magnesite, white.

1213. 443 58 - 62 [Dolomitic magnesite] magnesite, 

white.

1214. 442 50 - 58 Magnesite, white.

1215. 441 33 - 50 Do.

1216. 439 19 - 23 Do.

1217. 438 0-19 [Dolomitic magnesite] magnesite, white, 

iron stains.

1218- 1235. County, age, formation, locality, analyst, remarks, and use as in 

samples 1185-1206. Drill hole 15. ( Bennett, 1943, p. 3-7. 9, 16, 

17, 21, pi. 1.) [For other analyses from same drill hole, see samples 

388-393, group Ft .]

Washington Continued 

Lab. No. Depth (ft)

1218.

1219.

1220.

1221.

1222.

1223.

1224. 

1225.

1226. 

1227. 

1228.

1229. 

1230.

1231. 

1232.

1233. 

1234.

485

483

476

475

472

471

470 

469

468 

467 

466

465 

464

463 

462

461 

474

237

217

137

133

90

84

82 

78

68 

66 

59

53 

46

32 

22

16

7

-257

-232

-147

-137

-133

- 90

- 84 

- 82

- 78 

- 68 

- 61

- 59 

- 53

- 46 

- 32

- 22 

- 16

1235. 473

Dolomite, dark-gray; contains serpentine .

[Dolomite] magnesitic dolomite, gray; 

contains serpentine.

[Dolomitic magnesite] magnesite, gray; 

contains serpentine.

[Dolomitic magnesite] magnesite, darkgray.

[Dolomitic magnesite] magnesite, darkgray with white.

[Magnesitic dolomite] dolomitic magnesite, gray.

[Dolomitic magnesite] magnesite, gray.

[Dolomitic magnesite] magnesite, 

light-gray. 

Do.

Magnesite, light-gray.

[Dolomitic magnesite] magnesite, gray 

with white.

Magnesite, dark-gray.

[Dolomitic magnesite] magnesite, gray, 

white, and brown.

Magnesite, light-gray and white.

[Dolomitic magnesite] magnesite, lightgray.

Magnesite, light-gray; contains calcite.

[Dolomitic magnesite] magnesite, 

white, brown, arid gray.

[ Magnesitic dolomite] dolomitic magnesite, brown and white.

1236- 1247. County, age, formation, locality, analyst, remarks, and use as in

samples 1185-1206. Drillhole 16. ( Bennett, 1943, p. 3-7. 9, JL7, 

21, pi. 1.) [For other analyses from same drill hole, see sample 

122, group C; samples 394-396, group F t .]

Lab. No.

1236. 501 285 -295

1237. 499 225 -278

1238. 498 207 -225

1239. 497 172 -207

1240.

1241.

1242.

494

492

491

146

120

113

-155

-122

-120

1243. 490

1244. 489

1245. 488

1246. 487

1247. 486

85 -113

55 - 85

52 - 55

48 - 52

0 - 48

[Dolomite] magnesitic dolomite, 

banded.

[Dolomite] magnesitic dolomite, gray; 

contains calcite and serpentine.

[Dolomitic magnesite] magnesite, 

white with light-gray.

[Dolomitic magnesite] magnesite, gray 

with white.

[Dolomitic magnesite] magnesite, gray.

Dolomitic magnesite, gray and white.

[Dolomitic magnesite] magnesite, gray 

and white.

[ Dolomitic magnesite] magnesite, gray, 

white, and brown.

[Magnesitic dolomite] dolomitic magnesite, light-gray and white.

[Dolomitic magnesite] magnesite, 

light-gray.

[Magnesitic dolomite] dolomitic magnesite , light gray.

Magnesite, light-gray to white.

1248, 1249. County, age, formation, locality, analyst, and use as in samples 1185- 

1206. Drill hole 17. (Bennett. 1943, p. 3-7. 9,^7, 21, pi. 1.) 

General: Magnesite, predominantly white; for the most part massive; 

occasional banding; mineralogy. Tonnage estimated. Index map, 

geologic section. Log of drill hole. [For other analyses from same 

drill hole, see samples 1250-1259, this group; samples 123-126, group 

C; sample 397, group Fj.]

1248. Lab. No. 519. [Magnesitic dolomite] dolomitic magnesite, 

light-gray; contains serpentine; depth 269-271.25 ft.

1249. Lab. No. 518. [Calcareous dolomite] dolomite, white and 

gray; contains serpentine; depth 246.5-252 ft.
176 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

%o,« _______

MgO*

CaO ___________

Ignition loss* ______

Class ____ _____

CaO/MgO ________

R»0, z 

MgO s ____

CaO ____________

Ignition loss * ____ _

Total _ _ _ _

Class ___________

CaO/MgO __ _____

R»0,z 

MgO* _________ . CaO

Ignition loss* ______

Total _____ ,

Class ___________

CaO/MgO ________

Insoluble 1 __ _ ___

VV _____

MgO* _____ __ . CaO __________ .

Ignition loss* __ __ .

Total _____ ,

Class ___________

CaO/MgO _ ___ ,

Insoluble 1 ________ .

RjO,* __________ . MgO» _________ .

CaO ____

Ignition loss 4 _

Total ___ _.

Class _____ __ .

CaO/MgO__ ___ __

1250

46F241-3

5.48 

1.22 

39.13 

9.90 

44.27

100.00

3,4,87

Dolomitic 

magnesite

1263

46FZ 

43-124

1.54 

1.32 

27.53 

23.07 

46.54

100.00

0,3,95

Magnesian 

dolomite

1276

46F-41-25

4.73

1.21

41.17

7.95

44.94

100.00

- 3,4,87

Dolomitic

magnesite

1289

46FZ33-S4

4.77

1.02

44.55

2.25

47.41

100.00

3,3,91

1302

46F233-39

7.02

.83

21.65

27.11

43.39

100.00

6,2,90

Dolomite

1251

46F241-4

5.38 

1.34 

45.30 

2.58 

45.40

100.00 

3,4,87 

Magnesite

1264

46F, 

41-16

2.25 

1.53 

34.09 

15.47 

46.66

100.00

0,4,93

Dolomitic 

magnesite

1277

46Fj41-26

4.11 

.75

25.01 

27.56 

42.57

100.00

3,2,88

Magnesian 

dolomite

1290

46F233-53

4.32 

1.05

44.22 

3.79 

46.62

100.00

3,3,90

Dolomitic 

magnesite

1303

46Fz33-38

4.30 

1.31 

25.76 

23.07 

45.56

100.00 

2,4,93 

Magnesian 

dolomite

1252

46Fj41-5

7.10 

1.28 

43.60 

4.75 

43.27

100.00

5,4,83

Dolomitic 

magnesite

1265

46F, 

41-17

5.25 

3.07 

26.12 

24.84 

40.72

100.00

0,9,82

Magnesian 

dolomite

1278

46F-41-27

4.32 

.55

25.71 

26.88 

42.54

100.00

3,2,88

Magnesian 

dolomite

1291

46Fj33-52

4.47 

1.02

45.99 

1.60 

46.92

100.00, 

3.3,90 

Magnesite

1304

46F,33-21

6.00 

.82 

46.51 

1.36 

45.31

100.00 

5.2,87 

Magnesite

1253

46F.41-6

7.46 

1,10 

43.62 

4.87 

42.95

100.00

6,3,83

Dolomitic 

magnesite

1266

46F, 

43-125

2.15 

1.72 

20.78 

30.08 

45.27

100.00 

0,4,94 

Dolomite

1279

46F-41-28

5.41 

1.28

43.14 

5.59 

44.58

100.00

3,4,86

Dolomitic 

magnesite

1292

46F|33-51

4.13 

1.07

46.26 

1.11 

47.43

100.00 

2.3.91 

Magnesite

1305

46F,33-22 

0.45 

1.09 

20.65 

31.15 

46.66

100.00 

0.1,98 

Dolomite

Includes silica and insoluble silicates. 

2 Iron and alumina.

Washington Continued

1254 1255 1256

46F-41-8 46F.41-9 46F-41-10

7.56 3.13 0.67 

.96 1.00 .90 

47.01 43.81 44.61 

.58 4.41 3.16 

43.94 47.65 50.66

100.05 100.00 100.00 

6,3,84 1,3,92 0,1,98 

Magnesite Magnesite Magnesite

Washington Continued

1267 1268 1269

46FZ 46FZ 46FZ 

41-18 41-19 41-20

3.92 3.52 4.04 

1.81 1.39 1.60 

32.29 31.55 39.10 

17.10 18.32 8.38 

44.88 45.22 46.88

100.00 100.00 100.00

1.5,89 1,4,91 1,5,91

Magnesian Magnesian Dolomitic 

dolomite dolomite magnesite

W ashington C ontinued

1280 1281 1282

46F241-29 46F.41-30 46F.41-31

3.97 4.75 2.90 

1.16 1.08 1.32 

34.79 39.16 39.25 

15.36 10.27 9.42 

44.72 44.74 47.11

100.00 100.00 100.00

2,3,89 3,3.88 1.4,92

Dolomitic Dolomitic Dolomitic 

magnesite magnesite magnesite

Washington Continued

1293 1294 1295

46F233-50 46F2 33-49 46F2 33-48

3.72 4.37 5.47 

1.14 1.13 1.21

43.94 47.41 46.50 

3.33 .16 .82 

47.87 46.93 46.00

100.00 100.00 100.00

2,3,92 2,3,89 3,4,88

Dolomitic .. . .. Magnesite Magnesite magnesite ° °

Washington Continued

1306 1307 1308

46F.33-23 46F.33-24 46F.33-25

4.82 6.08 5.67 

1.15 1.09 1.07 

47.17 46.80 47.76 

.18 .92 .11 

46.68 45.11 45.39

100.00 100.00 100.00 

3,3,89 4,3,86 4,3,86 

Magnesite Magnesite Magnesite

1257

46F241-11

1.07 

1.08 

42.81 

5.04 

50.00

100.00

0,2,97

Dolomitic 

magnesite

1270

46F2 

43-126

2.73 

.60 

23.17 

29.17 

44.33

100.00 

2,2,92 

Dolomite

1283

461.41-32

4.42 

1.00

42.89 

5.69 

46.00

100.00

3,3,89

Dolomitic 

magnesite

1296

46F.33-47

4.45 

1.28

45.85 

1.17 

47.25

100.00 

2,4,90 

Magnesite

1309

46F,33-26

4.52 

1.23 

45.73 

.86 

47.66

100.00 

2,4,91 

Magnesite

'By difference. 

4 At 950° C.

1258

46F241-12

3.97 

1.30 

38.75 

9.50 

46.48

100.00

2,4,91

Dolomitic 

magnesite

1271

46F, 

43-127

3.50 

.74 

44.68 

4.19 

46.89

100.00

2,2,91

Dolomitic 

magnesite

1284

46F241-33

3.95 

1.48

46.37 

.82 

47.38

100.00 

1,4,90 

Magnesite

1297

46F.33-46

4.74 

1.25

46.24 

1.28 

46.49

100.00 

3,4,89 

Magnesite

1310

46F233-27

3.80 

.96 

35.21 

14.24 

45.79

100.00 

2,3,91 

Dolomitic 

magnesite

1259 1260

46F.41-13 46F.43-123

4.75

i.ii

37.56 

10.58 

46.00

100.00

3,3,90

Dolomitic 

magnesite

1272

46FZ 

41-22

1.13 

.75 

43.29 

5.04 

49.79

100.00

0,2,96

Dolomitic 

magnesite

1285

46F.33-59

6.28 

1.12

45.11 

2.96 

44.53

100.00 

4.3,85 

Magnesite

1298

46F.33-43

2.91 

1.13

27.13 

22.65 

46.18

100.00

1,3,94

Magnesian 

dolomite

1311

46Fz33-28

0.64 

.89 

46.68 

.68 

51.11

100.00 

0,1,98 

Magnesite

4.31 

2.29 

29.92 

20.11 

43.37

100.00

0,7,87

Magnesian 

dolomite

1273

46F2 

41-23

7.86 

.89 

47.47 

1.48 

42.30

100.00 

6,3,81 

Magnesite

1286

46Fj33-58

5.16 

1.25

45.39 

1.82 

46.38

100.00 

3,4.89 

Magnesite

1299

46F.33-42

2.16 

1.06

29.96 

19.52

47.30

100.00

0,3,95

Magnesian 

dolomite

1312

46F,33-30

5.08 

.92 

47.50 

.42 

46.08

100.00 

4,3,88 

Magnesite

1261

46F.41-14

2.75 

1.67 

34.09 

15.72 

45.77

100.00

0,5,91

Dolomitic 

magnesite

1274

46FZ 

43-129

6.04 

.98 

45.08 

3.64 

44.26

100.00

4,3,85

Dolomitic 

magnesite

1287

46F233-57

4.80 

1.14

46.47 

.61 

46.98

100.00 

3,3,90 

Magnesite

1300

46F.33-41

2.75 

1.00

32.29 

16.89 

47.07

100.00

1,3,94

Magnesian 

dolomite

1313

46F.33-31

4.28 

.99 

25.32 

24.47 

44.94

100.00 

3,3,92

Magnesian 

dolomite

1262

46F.41-15

0.47 

1.31 

22.89 

28.74 

46.59

100.00 

0,1,97 

Dolomite

1275

46F2 

41-24

4.39 

1.35 

46.47 

1.07 

46.72

100.00 

2,4,89 

Magnesite

1288

46F,33-56

6.28 

1.14 

46.15 

1.32 

45.11

100.00 

4,3,86 

Magnesite

1301

46F233-40

6.62 

.87

31.95 

17.29 

43.27

100.00

5,3,87

Magnesian 

dolomite

1314

46F233-32

1.32 

.27 

21.64 

30.84 

45.93

100.00 

1.1,96 

Dolomite
ANALYSES OF SAMPLES 177

DESCRIPTIVE NOTES

Lab. No

1250.

1251.

1252.

1253.

1254.

1255.

1256.

1257.

1258.

1259.

513

512

511

510

.508

507

506

505

504

503

. Pep

116

113

104

86

81

58

51

39

29

0

 th(ft)

-127

-116

-113

-104

- 83

- 81

- 58

- 51

- 39

- 29

Washington Continued

1250-1259. Stevens County. Precambrian, Stensgar Dolomite. SEi SWi sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. Drill hole 17. ( Bennett, 1943, p. 3-7, 9, ^7. 21, 

pi. 1.) General: Magnesite, predominantly white, massive; occasional banding; mineralogy. Tonnage estimated. Index map, geologic 

section. Log of drill hole. Possible use of magnesite: Source of magnesium for light-metal construction [implied]. [For other analyses 

from same drill hole, see samples 1248, 1249, this group; samples 123- 

126, group C; sample 397, group FI.]

[Dolomitic magnesite] magnesite, gray 

with a little brown.

Magnesite, gray.

[Dolomitic magnesite] magnesite, gray; 

contains veinlets.

[Dolomitic magnesite] magnesite, gray, 

white, and brown.

Magnesite, light-gray.

Magnesite, white with gray.

Magnesite, white.

[Dolomitic magnesite] magnesite, white; 

contains veinlets.

[Dolomitic magnesite] magnesite, lightgray with white.

[Dolomitic magnesite] magnesite, 

brown, white, and light-gray.

1260- 1269. County, age, formation, locality, analyst, and use as in samples 1250- 

1259. Drillhole 18. (Bennett, 1943, p. 3-6, 9. JUB, 21, pi. 1.) 

General mineralogy. Tonnage estimated. Index map, geologic section. 

Log of drillhole.

Lab. No. Depth(ft)

[Magnesitic dolomite] dolomitic magnesite, mottled; contains serpentine.

Dolomitic magnesite, white, black, 

and gray.

[Dolomite] magnesitic dolomite, white, 

gray, and brown.

[ Magnesitic dolomite] dolomitic magnesite, gray and brown.

Dolomitic magnesite, gray and white.

[ Magnesitic dolomite] dolomitic magnesite, brown and gray.

Dolomite, brown.

[Magnesitic dolomite] dolomitic magnesite, gray and brown, friable.

[Magnesitic dolomite] dolomitic magnesite, white, gray, and brown.

[Dolomitic magnesite] magnesite, 

white, gray, and brown.

1270-1284. County, age, formation, locality, analyst, reference, remarks, and

use as in samples 1260-1269. Drill hole 19. [For other analyses from 

same drill hole, see samples 398, 399, group Ft.J

[Underscored page numbers in reference indicate source of analysis]

Washington Continued 

Lab. No. Depth (ft)

1260.

1261.

1262.

1263.

1264. 

1265.

1266. 

1267.

1268.

1269.

532

531

530

529

528 

524

523 

522

521

520

169

156

143

127

108 

67

53 

35

21

0

-187

-169

-156

-143

-127 

- 90

- 63 

- 53

- 31

- 21

Lab. No.

1270. 548

1271. 547

1272. 546

1273. 544

1274. 543

1275. 542

1276. 541

281.5-310 [Dolomite] magnesitic dolomite, white 

and gray; contains serpentine.

272 -281.5 [ Dolomitic magnesite] magnesite, lightgray and white; contains serpentine.

248 -272 [Dolomitic magnesite] magnesite, lightgray and white.

213 -233 Magnesite, gray and white.

190 -213 [Dolomitic magnesite] magnesite, 

medium-gray; contains serpentine.

180 -190 Magnesite, medium-gray.

166 -180 [Dolomitic magnesite] magnesite, 

medium-gray.

1277.

1278.

1279.

1280.

1281.

1282.

1283.

1284.

540

539

538

537

536

535

534

533

150

128

106

82

64

39

25

0

-166

-150

-128

-106

- 82

- 64

- 39

- 25

1285-1297.

[ Magnesitic dolomite] dolomitic magnesite, dark-gray.

[Magnesitic dolomite] dolomitic magnesite, light-and dark-gray; contains 

pyrite.

[Dolomitic magnesite] magnesite, lightand dark-gray.

Dolomitic magnesite, light- and darkgray.

[ Dolomitic magnesite] magnesite, gray 

and brown.

[Dolomitic magnesite].magnesite, gray 

and brown.

[Dolomitic magnesite] magnesite, white 

and gray.

Magnesite, brown and gray.

County, age, formation, locality, analyst, and use as in samples 1250- 

1259. (Bennett. 1943, p. 3-7, 9, ^9, 21, pi. 1.) General: Magnesite, light-gray to yellowish, medium-crystalline; for the most part 

massive, occasional banding; mineralogy. Channel sample from old 

mine adit. Tonnage estimated. Index map, geologic section.

Lab. No.

1285.

1286.

1287.

1288.

1289.

1290.

1291.

1292.

1293.

1294.

1295.

1296.

1297.

181 __ _ ________ __ ._

182 _______ _ .____. _

183 _____ . __ . _____

184 ___________ _ .__

186 __ _ .________. __ .

187 ________ _ _ __ .__

188 __ ___ _

189 _______ __ __. _ _

190 _______ _ _______

191 

192 _ ______________

301 _______________

302 _ __ ____

Magnesite .

Do.

Do.

Do.

Do.

[Dolomitic magnesite.]

Magnesite.

Do.

[Dolomitic magnesite.]

Magnesite.

Do.

Do.

Do.

1298- 1303. County, age, formation, locality, analyst, and use as in samples

1250-1259. (Bennett, 1943, p. 3-6, 9. .19. 21, pi. 1.) General 

mineralogy. Channel sample from old mine adit. Tonnage estimated. 

Index map, geologic section.

Lab. No.

1298. 308 _____._____._. [ Magnesian dolomite.]

1299. 309 _____________ Do.

1300. 310 ______________ Do.

1301. 311 ______________ Do.

1302. 312 ___._________ [Dolomite.]

1303. 313 _____._______ [Magnesian dolomite.]

1304-1314. County, age, formation, locality, analyst, and use as in samples

1250-1259. (Bennett, 1943, p. 3-6, 9, _19. 21, pi. 1.) General 

mineralogy. Outcrop sample. Tonnage estimated. Index map, 

geologic section.

Lab. No.

1304. 126 ______________ [Magnesite.]

1305. 297 _____________ [Dolomite.]

1306. 205 ____.___ [Magnesite.]

1307. 298 ___ _ _ _ Do.

1308. 206 _____.________ Do.

1309. 208 ________._____ Do.

1310. 209 ____________.__ [ Dolomitic maijncsi.,.

1311. 210 [Magnesite.]

1312. - 212 __.___________ Do.

1313. 213 ______________ [Magnesian dolomite.]

1314. 214 _.___ ______ [Dolomite.]
178 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing mote than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

Washington Continued

Insoluble _ _ _ _ _

MgO _____________

CaO _ __________

H20 _____________

CaO/MgO _________

1315

46F233-33

J 5.50 

4 .56 

'20.28 

29.34

T 44.32

100.00 

5,2,93

Dolomite

1316

46F233-34

4 1.10 

*39.57 

9.70

'42.50

100.00 

5,3,83

Dolomitic 

m agnesite

1317

46F233-35

J5.30 

4 .83 

'22.19 

29.38

T 42.30

100.00 

4,2,88

Dolomite

1318

46F233-36

'3. 11 

4 .74 

'22.22 

29.53

T 44.40

100.00 

2.2.92

Dolomite

1319

46F 242-283

2 4.4 

5 1.2 

43.5 

4.9 

1.0 

"45.0

[ 100.0] 

2,4,87

Dolomitic 

magnesite

1320 1321 1322

46F 242-287 46F233-9 46F233-10

2 4.9 '5.8 '5.2 

5 1.4 2.4 1.5 

43.8 45.8 43.5 

4.1 .6 3.1

 44.8 9 45.3 9 45.4

[100.0] [99.9] [98.7] 

3.5,87 2,7,86 3.4,87

Dolomitic . Macneaite Magnesite magnesite ° °

1323

46F233-11

S 6.3 

2.1 

45.0 

1.6

*44.5

[99.5] 

3,6,85

Magnesite

1324

46Fj41-36

3 1.9 

1.0 

20.8 

29.4

9 44.5

[97.6] 

0,3,93

Dolomite

Washington Continued

FeO _____________

MgO _____________

CaO _____________

Ignition loss _ ____ _ 

Total ________

Class ____________

CaO/MgO _________

1328

46F241-47

3 3.8 

1.2

42.8 

2.2 

*49.3

[99.3] 

2,4.93

Magnesite

1329

46F241-48

'3.3 

2.2

24.9 

23.2 

*45.9

[99.5] 

0,6,94

Magnesian 

dolomite

1330

46F241-49

S 5.6 

1.1

42.9 

1.0 

*48.5

[99.1] 

4,4,92

Magnesite

1331

46F241-50

'1.8 

1.3

28.3 

20.2 

9 47.0

[98.6] 

0,3.95

Magnesian 

dolomite

1332

46FJ41-51

'4.9 

2.1

38.6 

6.7 

9 47.0

[99.3] 

1.6.91

Dolomitic 

magnesite

1333 1334 1335

46Fj41-52 46Fi41-53 46F241-55

'6.2 '2.5 '2.3 

1.1 2.3 1.1

22.1 *22.3 44.4 

24.8 27.9 .8 

9 43.9 9 45.0 *50.3

[98.1] 100.0 [98.9] 

4.3.91 0.4.93 0,4.94

Magnesian _ . .. .° Dolomite Magnesite dolomite

1336

46Fj41-54

'2.0 

1.6

22.0 

27.8 

*46.0

[99.4] 

0,3.95

Dolomite

1337

46Fi41-56

'5.4 

1.6

38.8 

6.0 

9 47.2

[99.0] 

3,5,91

Dolomitic 

magnesite

1325

46F241-44

'3.6 

1.8 

35.4 

11.9

'48.2

[100.9] 

1,5,95

Dolomitic 

magnesite

1338

46Fi41-57

'5.6 

1.0

42.8 

.7 

9 48.2

[98.3] 

4,4,91

Magnesite

1326

46F241-45

3 2.3 

1.3 

44.9 

1.0

9 50.3

[99.8] 

0,4.96

Magnesite

1339

46F241-87

2 4.83

.85 

38.41 

7.39 

"47.81

99.29 

5.0.94

Dolomitic 

magnesite

1327

46F241-46

'3.6 

1.1 

43.0 

1.6

*50.0

[99.3] 

2,5.93

Magnesite

1340

46F241-86

2 5. 60

.88 

40.90 

6.88 

'46.03

100.29 

6,0,90

Dolomitic 

magnesite

Washington Continued

Insoluble _ _ _ _ _

Al20,+Fe20s ___ ___

MgO ________

CaO _ _______ _

Total _______

Class ____________

CaO/MgO ___ ___

1341

46F233-1

'2.5 

1.0 

23.8 

26.2 

9 45.9

[99.4]

1,3,95

Magnesian 

dolomite

1342

46F233-2

S 0.9 

.8 

20.9 

29.3 

9 46.8

[98.7] 

0,2.96 

Dolomite

1343

46F233-3

S 6.3 

2.6 

19.6 

26.8 

9 43.2

[98.5] 

2.8.89 

Dolomite

1344

46FZ33-13

'2.9 

1.0 

21.1 

29.9 

9 43.6

[98.5] 

1,3,91 

Dolomite

1345

46Fj33-14

'7.3 

1.5 

16.8 

31.5 

9 42.6

[99.7]

5,4.90

Calcareous 

dolomite

1346 1347 1348

46Fj33-15 46Fj33-16 46Fj33-17

S 0.5 S 2.0 *4.5 

1.2 1.1 .7 

24.7 33.2 21.6 

25.7 14.9 30.0 

 47.5 9 47.6 9 43.0

[99.6] [98.8] [99.8]

0,1,98 0,3.95 3,2,90

Magnesian Dolomitic J 6 . Dolomite dolomite magnesite

1349

46Fj33-18

'1.4 

1.4 

25.3 

21.9 

9 46.5

[96.5]

0.4,92

Magnesian 

dolomite

1350

46F233-19

S 3.6

.4 

20.2 

29.1 

*45.2

[98.5] 

3,1.94 

Dolomite

1351

46F233-20

'5.8 

1.8 

21.9 

29.8 

9 41.0

[100.3] 

3,5,85 

Dolomite

1352

46Fj41-88

2 1.47 

.65 

None 

54.12 

43.50

99.74 

0,3,97 

Calcite

1353

46F241-79

$ 2.6 

1.9 

41.4 

3.6 

9 47.9

[97.4]

0.5.92

Dolomitic 

magnesite

Washington Continued

A120, ____________

Fe20s ____________

MgO ____________

CaO ______ _____

H2O+

Total _ ______

Class __ _ ___ _

CaO/MgO _ _

'includes silica and 

insoluble silicates. 

J SiO2 . 

'Mainly SiO2 . 

4 Iron and alumina. 

5 R203 .

1354

46F241-80

'1.2

25.5 

24.9

9 46.8

[99.9]

0,2.96

Magnesian 

dolomite

1355

46Fj41-81

'3.5 

1.6

30.0 

16.9

*47.0

[99.0] 

1,5,93

Magnesian 

dolomite

1356

46Fj41-82

'1.3 

1.4

21.4 

28.8

*46.5

[99.4] 

0,3,96 

Dolomite

1357

46F241-83

'1.9 

2.4

22.4 

26.5

9 46.1

[99.3] 

0,4,94 

Dolomite

1358

46F241-84

'4.8 

1.9

20.4 

28.4

*44.0

[99.5] 

2,6,91 

Dolomite

1359 1360 1361 1362 1363

46Fi41-85 46Fi41-297 46Fi41-90 46F,42-275 46Fj42-274

S 4.8 1.5 2 5.79 

5 ( .43

42.5 46.2 42.07 

1.7 .6 1.69 

____ _____ "l.94

*49.1 49.9 ! 47.23

[99.3] [98.7] 100.00 

3,5,92 1,1,96 4,5.91 

Magnesite Magnesite Magnesite

*By difference. 

7 At 950«C. 

'CO,. 

'Mainly CO2 . 

"Water above 110«C and 

undetermined, by difference

3.3

44.8 

.6

49.1

[98.6] 

2.2.94 

Magnesite

2.9 

5 .7

45.0 

1.6

48.6

[98.8] 

2.2.93 

Magnesite

1364

46F241-91

'4.2 

2.3

43.6 

.4

9 48.9

[99.4] 

0,7,92 

Magnesite

1365

46Fj42-278

3.5 

"2.1

43.3 

2.1

47.5

[98.5] 

0.6.91 

Magnesite

1366

46F241-41

2 0.89 

( None 

\ .00 

.58 

45.76 

None 

"3.53 

"49.24

100.00 

1.4.94 

Magnesite
ANALYSES OF SAMPLES 179

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

1315-1318. Stevens County. Precambrian, Stensgar Dolomite. SEi SW* sec. 36, 

T. 30 N., R. 37 E., near town of Turk. Analyst, under direction of 

W. W. Holbrook. ( Bennett. 1943, p. 3-6, 9. .19, 21, pi. 1.) General 

mineralogy. Outcrop sample. Tonnage estimated. Index map, geologic section. Possible use of magnesite: Source of magnesium for 

light-metal construction [implied].

1315. Lab. No. 215. [Dolomite.]

1316. Lab. No. 216. [Dolomitic magnesite.]

1317. Lab. No. 217. [Dolomite.]

1318. Lab. No. 299. [Dolomite.]

1319, 1320. Stevens County. Stensgar Dolomite. SWi sec. 36, T. 30 N., R. 37 E. 

Probably Turk deposit. ( Doerner and others, 1946, p. 13, 48; 

Campbell and Loofbourow, 1957.) Magnesite. Mineralogy. Possible 

use: Production of magnesia.

1321-1323. Stevens County. Stensgar Dolomite. Sec. 36, T. 30 N., R. 37 E.,

Turk area. Analyst, F. G. Mehl. Samples 77-79. (Bennett, 1941, 

p. 3, 12, 21, 23, J25, pi. 2.) Magnesite, coarse-grained. General 

mineralogy. Channel sample. Index and geologic maps.

1324. County, formation, locality, analyst, reference, and maps as in samples 

1321-1323. Sample 81. Dolomite.

1325-1338. Stevens County. Stensgar Dolomite. NWi sec. 10, T. 30 N., R. 38 E., 

west and north of town of Springdale. U.S. Magnesite Co. area. 

Analyst, F. G. Mehl. ( Bennett, 1941, p. 3, 12. 19. 20, 23, 24, 25, 

pi. 1.) General: Magnesite intermixed with dolomite; from quarry; 

mineralogy. Index and geologic maps. Sample 1336: ( Campbell and 

Loofbourow, 1962, p. F-3, F-8, F-18. F-45, pis. 1, 2.); tonnage 

estimated; geologic sections, correlated columnar sections.

Sample

1325. 19 _____ _____ [Magnesite.]

1326. 27 Do.

1327. 35 ______________ Do.

1328. 37 ______________ Do.

1329. 40 [Magnesian dolomite.]

1330. 41 _ _ _______ [Magnesite.]

1331. 43 . __ _. , [Magnesian dolomite.]

1332. 49 ______.__.____ [Dolomitic magnesite.]

1333. 50 ____. _ [Magnesian dolomite.]

1334. 51 ___, [Dolomite.]

1335. 67 . __.__ __._ [Magnesite.]

1336. 64 ______ ___... Dolomite.

1337. 70 _ . __ . . [Dolomitic magnesite.]

1338. 71 ___ _____ [Magnesite.]

1339, 1340. Stevens County. Stensgar Dolomite. 18 miles west of Springdale. 

U.S. Magnesite Co. quarry. Analyst, Chase Palmer; collector, 

R. W. Stone. Record 3220. ( Yale and Stone, 1921, p. 150, 151; 

Wells, 1937, p. 62; Bennett and others, 1966, p. 227, 229.) Magnesite, crystalline. Use: Refractories [ implied].

1339. Nj corner sec. 10, T. 30 N., R. 38 E.( ?). From upper 40 ft 

of quarry.

1340. [Possibly T. 30 N., R. 37 E.] Magnesite, 18 ft in middle of 

quarry. Use: Steel plants [implied] .

1341-1343. Stevens County. Stensgar Dolomite or Edna Dolomite. Sec. 17, 

T. 30 N., R. 38 E., C. F. Alien area. Analyst, F. G. Mehl. 

(Bennett. 1941, p. 3, 12, 21, 23, 24, 25, pi. 2.) Dolomite, gray, 

fine-grained; contains veins of carbonate; magnesitic in places. 

General mineralogy. Index and geologic maps.

1341. Sample 42.

1342. Sample 57.

1343. Sample 68.

1344-1351. Stevens County. Stensgar Dolomite. Sec. 19, T. 30 N., R. 38 E.,

Turk area. Analyst, F. G. Mehl. (Bennett. 1941, p. 3, 12, 22-24, 

25, pi. 2.) General mineralogy. Index and geologic maps.

Sample

1344. 26 ________.____ Dolomite.

1345. 28 ______________ Do.

1346. 33 ______________ Do.

Washington Continued

Sample

1347. 34 _._______.___.__ [Dolomitic magnesite.]

1348. 38 ______________ Dolomite.

1349. 48 _ ___ __ Do.

1350. 52 _________ __ Do.

1351. 59 _____________ Do.

1352. Stevens County. [Stensgar Dolomite.] SWi sec. 1, T. 30 N., R. 40 E., 

3 miles south and 1.5 miles east of town of Valley, Jump Office Lake. 

Analyst, A. A. Hammer. Lab. No. 62. ( Shedd, 1913, p. 123, 124. 

246, pi. 21.) Limestone, dark-gray, fine-grained; flinty appearance. 

Index map. Use: Lime. Possible use: Portland cement.

1353-1357. Stevens County. Stensgar Dolomite. NWi sec. 1, T. 31 N., R. 39 E., 

Woodbury area. Analyst, F. G. Mehl. (Bennett, 1941, p. 3, 12, 16, 

23, 24, 25, pi. 1.) General: Dolomite with some magnesite, from 

30 ft face of old quarry; mineralogy. Index and geologic maps.

Sample

1353. 20

1354. 22

1355. 60

1356. 62

1357. 65

1358, 1359. County, formation, analyst, reference, and maps as in samples 1353-

1357. SW corner, sec. 3, T. 31 N., R. 39 E., Phoenix area. 

General mineralogy.

1358. Sample 20-A. Dolomite.

1359. Sample 29. Magnesite, coarsely crystalline.

1360. Stevens County. Stensgar Dolomite. Sec. 7, T. 31 N., R. 39 E. 

Midnight deposit. Collector, Eugene Callaghan. Sample 8. 

( Campbell and Loofbourow, 1962, p. F-3, F-8, F-18. F-43, pis. 1, 

2.) Magnesite, dark, coarse-grained. Tonnage estimated. Index and 

geologic maps, geologic sections, correlated columnar sections.

1361. Stevens County. Magnesite, associated with Stensgar Dolomite. Sees. 8, 

9. T. 31 N., R. 39 E., 12 miles northwest of Valley. U.S. Marble 

Co. Analyst, R. W. Thatcher. (Shedd, 1903, p. 87. 91_. 93-95, 135, 

137, 139, 142; Whitwell and Patty, 1921, p. 12, JL8_. 23, 27, 28, 46, 

47, pi. 2.) [Magnesite] limestone, black, coarsely crystalline; 200 ft 

thick. Bulk density 2.908. Tonnage estimated. Index and geologic 

map, geologic sections. Physical properties.

1362, 1363. Stevens County. Stensgar Dolomite. T. 31 N., R. 39 E. Collector, 

Eugene Callaghan. ( Campbell and Loofbourow, 1962, p. F-3, F-4, 

F-8, F-18, F-40, F-43, pis. 1, 2.) Index and geologic maps, geologic sections, correlated columnar sections.

1362. Sec. 9. Northwest Magnesite Co., Keystone quarry. Sample 6. 

Magnesite, dark-gray to almost black. Use: Refractories.

1363. Sees. 17, 18. Double Eagle deposit. Sample 7. Magnesite, 

dark-gray to black, coarse-grained. Former use: Plastic 

magnesia.

1364, 1365. Stevens County. Stensgar Dolomite. Sec. 18, T. 31 N., R. 39 E. 

Crosby deposit. Index and geologic maps.

1364. NEjSWi sec. 18. Analyst, F. G. Mehl. Sample 32. (Bennett, 

1941, p. 3, 12, 18, 23, 24, pi. 1.) Maguesite, pink to red, 

finely crystalline. General mineralogy.

1365. Collector, Eugene Callaghan. Sample 10. ( Campbell and 

Loofbourow, 1962, p. F-3, F-8. F-18. F-43, pis. 1, 2.) 

Magnesite, red, fine-grained. Tonnage estimated. Geologic 

sections, correlated columnar sections.

1366. Stevens County. Magnesite, associated with Stensgar Dolomite. Sec. 19, 

T. 31 N., R. 39 E., west of Valley, near Red Marble quarry. Analyst, 

R. W. Thatcher. Sample 4. (Shedd, 1903, p. 97,^8-100, 137, 142; 

Whitwell and Patty, 1921, p. 12. IS, 23. 27. 28, pi. 2.) Magnesite. 

pink, coarse-grained. Bulk density 2.858. Tonnage estimated. Lid ex 

and geologic map, geologic sections. Physical tests. Use for area: 

Refractories. Possible use: Dimension stone.
180 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F,), common-rock category Continued

Chemical analyses Continued

Washington Continued

MgO ___________

CaO ___________

Total ______

Class __________

CaO/MgO _______

1367

46F,41-78

*4.27

'.78

45.02

1.07

_ '49.51

100.65

_ 4.0.95

1368

46F,42-277

3.5 

4 .7 

45.1 

.2 

49.8

[99.3] 

(2,2)95 

Magnesite

1369

46Fj41-60

*2.3 

1.4 

44.1 

.5 

T 50.1

[98.4] 

0,5.93 

Magnesite

1370

46F,41-61

'2.3 

.8 

45.0 

.1 

T 50.5

[98.7] 

1.3.94 

Magnesite

1371

46F,41-62

'1.5 

.6 

44.9 

1.4 

T 51.0

[99.4] 

0.2,96 

Magnesite

1372 1373 1374 ,

46F,41-63 46F241-64 46F,41-65

*5.4 *2.2 *4.5 

1.0 .6 1.1 

43.3 45.0 44.0 

1.1 .1 .1 

T 48.1 T 50.7 T 49.3

[98.9] [98.6] [99.0] 

4,3.92 1.3.94 3,4.92 

Magnesite Magnesite Magnesite

1375

46Fj41-66

'3.1 

.9 

44.3 

.6 

T 49.9

[98.8] 

2,3,94 

Magnesite

1376

46F,41-67

*1.6 

.7 

45.2 

.5 

T 50.8

[98.8] 

0,3.95 

Magnesite

1377

46F,41-68

*2.3 

.9 

44.7 

.3 

T 50.4

[98.6] 

1.4.94 

Magnesite

1378

46Fj4 1-288

*0.9 

.8 

*24.7 

20.9 

T 45.3

[92.6]

0,3.89

Magnesian 

dolomite

1379

46Fj41-38

*3.9 

.9 

22.0 

29.3 

T 45.1

[101.2] 

2.3.94 

Dolomite

Washington Continued

AljOi+FeiOs _____

MgO ___________

CaO ___________

Total _____

Class. _______ .

CaO/MgO ______ .

1380

46F,41-69

*3.8

2.8

20.0

28.2

_ T 43.8

. _ [98.6]

0.7.91

__ Dolomite

1381

46Fi41-70

*6.9 

1.0 

*21.8 

27.3 

T 43.1

[100.1] 

5.3.89 

Dolomite

1382

46F,41-71

*1.5 

1.4 

*22.3 

29.4 

T 45.3

[99.9] 

0.3,94 

Dolomite

1383

46F,41-72

'3.1 

1.6 

*21.2 

29.0 

T 44.7

[99.6] 

0,5,93 

Dolomite

1384

46F,41-74

*3.3 

1.4 

*24.4 

25.5 

T 45.4

100.0

1.4.93

Magnesian 

dolomite

1385 1386 1387

46F241-75 46F241-76 46F241-39

*2.2 *4.6 *0.9 

1.4 2.J 1.6 

*21.6 *20.7 *31.0 

29.5 28.9 20.6 

T 45.3 T 43.7 T 45.9

100.0 100.0 100.0

0,4,94 1,6,90 0.2.93

_ , Magnetian Magnesite Dolomite . ° , 6 dolomite

1388

46Fz41-89

'l.58 

4 1.78 

1.23 

54.02 

41.38

99.99 

0,3,93 

Calcite

1389

46F,42-272

*2.25 

1.16 

45.98 

1.31 

*49.30

[100.00] 

0,3.94 

Magnesite

1390

46F241-99

5.33 

'l.Ol 

43.52 

.35 

'47.91

[98.12] 

(5,0)92 

Magnesite

1391

46F241-97

2.07 

3 1.03 

44.50 

1.02 

'47.91

[96.53] 

(2.0)92 

Magnesite

1392

46F241-98

'0.46 

'l.Ol 

46.23 

.31 

'50.32

98.33 

0,0.96 

Magnesite

Washington Continued

SiO, .

Al,O3+Fe|Os ___ . MgO .

CaO ________ .

Total ____ .

Class ___.

CaO/MgO _____ .

1393

46F, 

41-298

1.56

4 1.28

45.24

.31

[48.39]

0.3.95

_ Magnetite

1394 1395

46F, 46Ft 

41-101 42-293

1.85 

'.88 

45.20 

1.74 

*49.70

[99.37] 

2.0.96 

Magnesite

'6.1 

4 2.8 

19.1 

27.9 

43.2

[99.1] 

(1.8)89 

Dolomite

1396

46Ft 

41-214

2.84 

4 1.31 

19.12 

31.25 

43.89

98.41 

1.4,92 

Dolomite

1397

46Ft 

41-121

*1.52 

".56 

'21.21 

30.03 

B 46.68

100.00 

1,2.98 

Dolomite

1398 1399 1400

46Ft 46Ft 46F, 

41-122 41-123 41-124

*2.80 "0.36 *0.76 

".52 ".44 ".56 

*20.91 *21.44 *21.27 

29.68 30.50 30.41 

B 46.09 B 47.26 B 47.00

100.00 100.00 100.00 

2.2.96 0.1.99 0.1,98 

Dolomite Dolomite Dolomite

1401

46Ft 

41-125

*0.68 

".76 

*21.29 

30.32 

B 46.95

100.00 

0.1,98 

Dolomite

1402

46Ft 

41-126

*0.72 

".64 

 21.31 

30.33 

B 47.00

100 .00 

0,1,98 

Dolomite

1403

46F, 

41-127

*0.50 

".60 

*21.53 

30.21 

B47.16

100 .00 

0,1.99 

Dolomite

1404

46Ft 

41-128

B 0.40 

".56 

*21.42 

30.52 

B 47.10

100.00 

0.1.99 

Dolomite

1405

46Ft 

43-39

0.94 

".96 

*20.15 

31.35 

B 46.60

100 .00 

0,2.98 

Dolomite

Washington Continued

SiO, _.

Al,0, +Fe,O, " ___ .

MgO* .

CaO ________ .

Total ____ ,

Class ________ .

CaO/MgO ______ .

'SiO,. 

'Mainly SiO,. 

3 FeO. 

4 R,0,. 

5 By difference.

 co,.

1406

46Fj43-40

0.80

.69

20.18

31.55

46.78

100.00

0.1.98

1407

46Fj43-41

 0.44 

.60

21.39 

30.42 

47.15

100.00 

0.1.99 

Dolomite

1408

46Fj43-42

1.90 

1.14

19.74 

31.20 

 46.02

100.00 

0.3.96 

Dolomite

1409

46Fj43-43

*0.44 

.48

21.29 

30.62 

47.17

100.00 

0.1.99 

Dolomite

1410

46F,43-10

*2.50 

.42

20.91 

30.22 

45.95

100.00 

2.1.96 

Dolomite

1411 1412 1413

46F,43-11 46F,43-12 46F,43-13

0.72 6.10 2.90 

.82 .93 .86

20.17 18.41 19.40 

31.50 30.45 31.20 

46.79 44.11 45.64

100.00 100.00 100.00 

0,1,98 5.3.93 1,3.96 

Dolomite Dolomite Dolomite

1414

46F,43-14

1.42 

.64

19.94 

31.45 

46.55

100.00 

0.2.98 

Dolomite

1415

46F,43-15

5.28 

.99

18.61 

30.70 

44.42

100.00 

4,3,93 

Dolomite

1416

46F,43-16

2.46 

.92

19.43 

31.35 

45.84

100.00 

1.3.96 

Dolomite

1417

46F,43-17

3.20 

.58

19.65 

30.85 

45.72

100.00 

2.2.96 

Dolomite

1418

46F{43-18

8.18 

.84

17.48 

30.45 

43.05

100.00

7.2.91

Calcareous 

dolomite

T Mainly CO,. 

'Lost (H|O and CO,}. 

* Insoluble . 

"Also reported as insoluble. 

11 Iron and alumina. 

B 950«- 1.000«C; also called CO,.
ANALYSES OF SAMPLES 181

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Washington Continued Washington Continued

200 ft thick. Tonnage estimated. Index and geologic maps, geologic 

sections. Use: Insulating and accoustical board, chemical, canstic 

magnesite for use in plastics, refractories. Possible use: Production of 

light-weight metal alloys, Sorel cement.

1367. Stevens County. Precambrian, magnesite, associated with Stensgar

Dolomite. Sees. 24, 25, T. 31 N., R. 38 E., about 15 miles west of 

town of Valley. American Mineral Production Co., Red Marble quarry. 

Analyst, Chase Palmer; collector, R. W. Stone. Record 3220. 

( Whitwell and Patty, 1921, p. 12, 15, 23, 27. 28. 52, 53, pi. 2; 

Landes, 1934, p. 1085, 1087, 1088; Wells, 1937, p. 62.) Deposit: 

Magnesite, reddish-brown to rose-red, from coarsely crystalline to a 

fine groundmass; probably more than 300 ft thick. Tonnage estimated. 

Index and geologic map, geologic sections. General use: Insulating 

and accoustical board, chemical; caustic magnesite for use in plastics.

1368. Steveus County. Steusgar Dolomite. Sec. 25, T. 31 N., R. 38 E. 

Northwest Magnesite Co., Red Marble quarry. Collector, 

Eugene Callaghan. Sample 11. ( Campbell and Loofbourow, 1962, 

p. F-3, F-8. F-16, F-18. F-44, F-45, pis. 1, 2.) Magnesite. red or 

pink. Tonnage estimated. Index and geologic maps, geologic sections, 

detailed measured section, correlated columnar sections. Use: Refractories.

1369- 1377. Stevens County. Stensgar Dolomite. SE corner sec. 24, T. 31 N.,

R. 38 E.. Red Marble area. Analyst, F. G. Me hi. ( Bennett, 1941, 

p. 3, 12, 18, 19, 23, 25, pi. 1.) Magnesite, various colors, coarse 

and finely crystalline. General mineralogy. Outcrop sample. Index 

and geologic maps.

Sample

1369. 53

1370. 54

1371. 55

1372. 58

1373. 61

Sample

1374. 63

1375. 66

1376. 69

1377. 72

1378, 1379. County, formation, analyst, and maps as in samples 1369-1377.

T. 31 N., R. 38 E., Red Marble area. (Bennett, 1941, p. 3, 12, 23, 

24, pi. 1.) General mineralogy.

1378. Sec. 24. Sample 8. [Magnesian dolomite.]

1379. Sec. 25. Sample 39. [Dolomite.]

1380- 1386. County, formation, locality, analyst, reference, and maps as in samples 

1378, 1379. [Dolomite except where noted] light-bluish-gray, finegrained to dense; weathers light gray. General mineralogy. Outcrop 

samples.

1380. SWi sec. 25. Sample 18. 

1381-1386. NE corner sec. 35. Samples 1-3, 5-7.

1384. [Magnesian dolomite.]

1385. [Magnesite.]

1387. County, formation, locality, analyst, reference, and maps as in samples 

1378,1379. Sec. 36. Sample 9. [Magnesian dolomite.]

1388. Stevens County. [Stensgar Dolomite.] SE* sec. 36, T. 31 N.,

R. 40 E., 3 miles south and 1.5 miles east of Valley, Jump Off Joe 

Lake. Analyst, A. A. Hammer. Sample 52. ( Shedd, 1913. p. 123, 

124. 245. pi. 21; Mills, 1962. p. 158, 160-M32.) Limestone, darkblue, compact. Tonnage estimated. Index and geologic maps. Use: 

Lime. Possible use: Portland cement, mineral filler, pulp and paper 

industry.

1389. Stevens County. Stensgar Dolomite. [SW-iSW* sec. 30, T. 32 N.. 

R. 40 E., Alien and Moss quarries; NWi NWi sec. 1, T. 31 N., 

R. 39 E., Woodbury quarry; and(or) NEi NEi sec. 25, T. 31 N., 

R. 38 E., Red Marble quarry. ] American Mineral Production Co. 

(Weaver. 1920. p. 321. 322, 324, 330. 331. pi. 1.) Magnesite. 

Tonnage estimated. Index and geologic map, geologic sections. 

General use: Cement, paper industry, plaster, refractories, tiling.

1390-1392. Stevens County. Stensgar Dolomite. Sec. 30, T. 32 N., R. 40 E.,

5 miles from town of Cliewelah. American Mineral Production Co., 

Alien quarry. General: Magnesite, crystalline, massive; averages

1390. [SWi sec. 30.] Analyst, Chase Palmer; collector,

R. W. Stone. Record 3228. ( Dolman, 1920. p. 176-179, 

182-184; Wells, 1937, p. 62; Hodge, 1938b, p.JL3, 34- 

36, 43, 44, 51.)

1391. (Whitwell and Patty, 1921, p. 12, 15. 23. 27, 28, 41. 49, 50. 

pi. 2; Landes, 1934. p. 1084-1088.)

1392. Analyst, Chase Palmer; collector, R. W. Stone. Record 3220. 

( Wells, 1937, p. 62; Hodge, 1938b, p. 36. 41, 43. 51. 

pi. 2.)

1393, 1394. Stevens County. Sec. 30, T. 32 N., R. 40 E., 5 miles from Chewelah. 

Northwest Magnesite Co., Finch quarry. ( Dolman, 1920, p. 176-179, 

182-184.) Tonnage estimated. Index and geologic maps, geologic 

sections. Use: Refractories. Possible use: Production of light-weight 

metal alloys, Sorel cement, chemical, insulation material.

1393. [Probably Stensgar Dolomite.] NWi sec. 30. Sample 15.

( Hodge, 1938b, p. .13. 15, 34-36. 43, 45, 51.) Magnesite, 

white, gray, pink, or nearly black; part laminated, part 

massive; crystalline, from very fine to very coarse grained; 

at least 300 ft thick.

1394. Magnesite, associated with Steusgar Dolomite. SW*NW«

sec. 30. Analyst, Chase Palmer; collector, R. W. Stone. 

Record 3228. ( Whitwell and Patty, 1921, p. 12, JL5, 23, 27, 

28, 41, 42, pi. 2.) General: Magnesite, crystalline, massive, bedded; more than 250 ft thick.

1395. Steveus County. Stensgar Dolomite. NE} NEi sec. 32, T. 33 N.,

R. 40 E., 4.7 miles northwest of Chewelah. Abandoned quarry. Collector, C. F. Deiss. Sample 2. ( Campbell and Loofbourow. 1962, 

p. F-3, F-13-15, F-18. pis. 1, 2.) Dolomite. Index and geologic 

maps, geologic sections, detailed measured section, correlated columnar sections.

1396. Stevens County. Cambrian, Old Dominion Limestone. SWiSWi sec. .3, 

T. 33 N., R. 39 E., northwest of town of Addy, headwaters of Stranger 

Creek. Analyst, A. A. Hammer. Sample 61. (Shedd, 1913, p. 130. 

131,246,pi.21; Mills. 1962, p. 164.) [Dolomite] limestone, white or 

light-gray, coarse; deposit at least 50ft thick. Index map. Use: None.

1397 - 1404. Stevens County. Lower part of Old Dominion Limestone. T. 33 N., 

R. 39 E., northwest of Addy. Owner, A. B. Lind. (Bennett, 1944, 

p. 6-8,31,33-35,pi.12; Bennett, 1945, p. 16.) Deposit: Dolomite, 

light- gray or gray, fine- to medium-grained; 2,000 ft exposed. Fresh 

sample from outcrop, fragments taken every 5 ft usually for a length of 

50 ft. Tonnage estimated. Index and geologic maps. Possible use: General uses of dolomite; source of magnesia, refractories, crushed stone.

1397-1402. NWiNWi sec. 13. Samples 544-549. 

1403, 1404. NEi NEi sec. 14. Samples 550, 551.

1405-1418. Stevens County. Old Dominion Limestone. T. 34 N.. R. 38 E., about 

11 miles northwest of Addy. (Bennett, 1944, p. 6-8, 31-33, pi. 10; 

Bennett, 1945, p. JJ5.) Deposit: Dolomite, light-gray to white, some 

banding, medium to coarsely crystalline. Fresh sample from outcrop, 

fragments taken every 5 ft, usually for a length of 50 ft. Tonnage 

estimated. Index and geologic maps. Former use: Building stone. 

Possible use: General uses of dolomite; refractories, crushed stone; for 

those analyses with more than 20 percent MgO, source of magnesia.

1405-1409. SEiSW* sec. 26. Samples 526-533. 

1410-1416. NWJNEi sec. 35. Owner, W. G. Mcrryweather.

Samples 501-507. 

1417, 1418. NEiNWi sec. 35. Owner, W. G. Merryweather.

Samples 513, 514.
182 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10 . Analyses of samples ftgm^Washington containing more than 90 percent carbonate (Group Ft\ common -rock category-Continued

Chemical analyses Continued

Si02 __ _ __

MgO 3 __ ___

Ignition loss 4 ____.

Total ____ .

CaO/MgO ______

SiOj ______

Fe»0s _ _____

FeO __________

MgO __ ________

CaO __ __ _

p n.

Ignition loss _ ____

Total __

Class

Al,0, _________

FeO ____ _

MgO

CaO

P2°5

Ignition loss

Total _

Class

CaO/ MgO

CaO ____ _ _ .

P205 _ .

Ignition loss - _.

Total .

CaO/MgO _

1419

46Fj43-19

0.70

.59

20.19

31.60

46.92

100.00

_ 0.1,99

__ Dolomite

1432

46F, 

43-32

3.58

 1 '.72

'19.18

31.15

__ 4 45.37

100.00

2.2,95

1445

46F, 

42-32

0.34

"1 5 .37

1.38

53.84

.004

7 43.74

_ "[99.67]

0.1.99

1458

46F2 

42-37

3.06

51.67

.76

51.99

.008

7 42.11

._ "[99.60]

0,5,94

1420

46Fj43-20

1.02 

.54 

20.16 

31.50 

46.78

100.00 

0.2,98 

Dolomite

1433

46F, 

43-33

5.28 

2 1.16

'18.20 

31.00

4 44.36

100.00 

3.3.93

Calcareous 

dolomite

1446

46F2 

42-33

0.53 

5.50

1.82 

52.97 

.005 

7 43.84

'[99.66] 

0,1,98

Calcite

1459

46F2 

42-41

4.16 

5 1.22 

2.37 

50.08 

.009 

742.14

[99.98] 

2,4.94

Magnesian 

calcite

1421

46Fi43-21

0.58 

.26 

20.58 

31.45 

47.13

100.00 

0,1,99 

Dolomite

1434

46F2 

43-34

4.37 

2 1.34

'18 .49 

31.20

4 44.60

100.00 

2,4,93

Dolomite

1447

46F2 

42-34

0.46 

5 .40

.87 

54.51 

.004 

7 43.67

'[99.91] 

0,1,99

Calcite

1460

46F2 

42-38

1.81 

s.95 

.56 

53.58 

.010 

742.76

[99.67] 

0,3,96

Calcite

1422

46F»43-22

0.31 

.72 

20.73 

31.15 

47.09

100.00 

0,1,99 

Dolomite

1435

46F, 

43-35

0.35 

'.96

'20.47 

31.30

4 46.92

100.00 

0,1.99

Dolomite

1448

46F, 

41-292

0.38 

.28

2.03 

54.06

43.15

'99.90 

0,1,97

Calcite

1461

46F, 

41-227

2.20 

1.60 

1.78 

53.06

42.76

101.40 

0.4,96

Calcite

Washington Continued

1423 1424 1425

46F,43-23 46Fj43-24 46FI43-25

0.48 0.40 i 0.60 

.75 .62 .38 

20.27 20.43 21.28 

31.55 31.50 31.01 

46.95 47.05 46.73

100.00 100.00 100.00 

0,1,99 0,1,99 0,1,98 

Dolomite Dolomite Dolomite

Washington Continued

1436 1437 1438

46F, 46F2 46F, 

43-36 43-37 43-38

0.44 1.18 8.38 

*.64 '.98 2 .91

'20.20 '20.18 '17.31 

31.70 31.14 30.52

4 47.02 4 46.52 4 42.88

100.00 100.00 100.00 

0,1.99 0.2,98 7,3,90

_ Calcareous Dolomite Dolomite . dolomite

W ashington Continued

1449 1450 1451

46F| 46F2 46F2 

41-236 41-241 41-242

1.56 0.98 1.89 >64 r ......

1.12 1.25 10.05 

54.62 53.96 43.60

42.34 643.76 6 44.63

100.28 99.95 B 100.17 

0,2,95 1,0,99 2,0,98

Maenesian Calcite Calcite f . calcite

W ashington Continued

1462 1463 1464

46F2 46Ft 46F, 

41-229 41-226 41-228

2.00 5.44 1.96 

1.08 1.36 2.68 

.76 3.96 3.26 

53.55 47.87 48.73

42.64 40.37 42.00

100.03 99.00 98.63 

0.3,96 3,4,90 0,3.94

c Magnesian Magnesian 

calcite calcite

1426

46F,43-26

0.90 

.66 

20.26 

31.40 

46.78

100.00 

0,2,98 

Dolomite

1439

46F, 

41-210

0.91

20.68 

31.80

6 46. 64

100.03 

1,0,98

Dolomite

1452

46F, 

41-243

0.82

Trace

.70 

54.81

*43.56

99.89 

1,0,99

Calcite

1465

46F, 

41-225

3.16 

.92 

2.15 

51.22

41.95

99.40 

2,3,94

Magnesian 

calcite

1427

46F243-27

'0.68 

.42 

21.40 

30.82 

46.68

100.00 

0,1,98 

Dolomite

1440

46F2 

41-211

0.98

22.21 

30.08

'46.70

99.97 

1.0.98

Dolomite

1455

46F, 

41-232

0.82

.63 

Trace

19.02 

32.77

646.73

99.97 

0.1.99

Calcareous 

dolomite

1466

46F, 

42-42

1.86 

51.38 

2.89 

50.51 

.004 

743.08

[99.72] 

0.3,96

Magnesian 

calcite

1428

46F243-28

0.52 

.36 

20.55 

31.45 

47.12

100.00 

0,1,99 

Dolomite

1441

46F, 

41-237

2.61

.76 

53.68

6 42.89

99.94 

3.0,97

Calcite

1454

46F, 

42-40

1.99 

} 51.14

1.18 

52.76 

.012 

7 42.64

[99.72] 

0.3,96

Calcite

1467

46F, 

42-43

5.68

8.06 

41.78 

.015 

741.64

[ 100 . 14 ] 

1,9.90

Magnesian 

calcite

1429

46F,43-29

0.22 

.94 

20.39 

31.50 

46.95

100.00 

0.0,99 

Dolomite

1442

46F, 

41-238

3.12

.81 

.67 

52.04

6 43.22

99.98 

3.0.96

Calcite

1455

46F, 

42-39

2.21 

51.00

.59 

53.23 

.010 

7 42.63

1430

46F,43-30

0.34 

.70 

20.42 

31.50 

47.04

100.00 

0,1.99 

Dolomite

1443

46F, 

42-30

0.37 

| B .36

.81 

54.45 

.007 

743.48

'[99.48] 

0.1.98

Calcite

1456

46F, 

42-35

2.80 

51.60

.69 

52.42 

.006 

7 41.96

1431

46F|43-31

0.36 

.34 

21.58 

30.88 

46.84

100.00 

0,1,98 

Dolomite

1444

46F2 

42-31

0.43 

8 .43

1.82 

53.39 

.004 

7 43.71

'[99.78] 

0,1,99

Calcite

1457

46F2 

42-36

1.93 

5 1.17

.56 

53.42 

.008 

7 42.65

"[99.67] "C 99. 48] "[99.74] 

1,3,96 0.5,94 0,3,96

Calcite Calcite Calcite

1468

46F, 

42-44

1.58 

5.95 

1.13 

53.39 

.006 

742.70

1469

46F2 

42-45

1.84 

5 .50 

21.36 

30.47 

.005 

746.63

[99.76] [100.80] 

0,3,96 1,1,98

Calcite Dolomite

1470

46F, 

42-46

0.69 

5 .49 

21.56 

30.95 

.037 

746.97

[100.70] 

0,1,98

Dolomite

See following page for footnotes.

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: Li2O,BeO,B2O,.K2O.Sc2Oj.V2O5 .NiO,CoO,ZnO,GatO,.GeOj,AsiO3.Y2O,,ZrOj,Nb2O5 ,MoO3,Ru,Rh,Pd,CdO,

O,,Tm2O,,Yb20,,Lu2Oj,HfO,,Ta20g ,WO,,Re2O7 .Os,It,Pt,Au,Tl20j, 

;; sample 1467, K2O=1.50 percent, V2O5 = 0.003 percent, NiO = 0.001 percent, ZrOj=0.006 percent]

NatO___ ____ __ _

TiOj ________ ____

Cr,0, ______________

MnO __________

CuO __ _____ _

SrO _ ____ __

AfcO _ ____________

1443

___ ______ 0.014

__ _________ .02

___________ .0014

______ _ __ .0096

1444

0.013

.02

.0018

.012

1445

0.0084

.014

.00099

.013

1446

0.011

.024

.0010

.0096

1447

0.016

.0010

.012

1454

0.037

.0008

.14

.0013

.022

1455

0.05

.035

.00093

.032

.0015

.021

.0002

1456

0.05

.048

.0013

.042

.0019

.020

.0002

1457

0.05

.028

.00067

.025

.0014

.015

1458

0.06

.0013

.037

.0014

.024

1459

0.031

.008

.060

.0097

.11
ANALYSES OF SAMPLES 183

Spectrochemical analyses Continued

Na2O ___________

TiO, 

Cr,0, _ 

MnO _____ _ _

1460

________ 0.021

________ .0085

________ .031

1466

0.024

.055

1467

0.11

.11

.45

1468

0.022

.012

1469

0.050

CuO __________

SrO __________

Ag,0 _________

1460

0.0053

.048

1466

0.0095

.061

1467

0.0024

.018

1468

0.0052

.011

1469

0.0021

.0047

Footnotes of analyses on preceding page:

'Also reported as insoluble. 

Iron and alumina, 

'fly difference. 

4 950°-1.000°C; also called CO,.

5 R*o>.

6 COj.

7 Sample dried at 110°-112°C; 

ignition loss 1.000°-1.100BC.

1 A composite of samples 1443-1447 contained NajO= 135 ppm, KjO = 490 ppm. 

TiO|= <30 ppm. S = 63 ppm.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate

*99.86 percent in text.

10 HiO- at 110°C, trace.

U A composite of samples 1456-1458 

contained NajO = 225 ppm. KjO = 660 ppm. 

TiOj = 270ppm. S = 25ppm.

Washington Continued

1419-1438. Stevens County. Cambrian, Old Dominion Limestone. Sec. 35, 

T. 34 N., R. 38 E., about 11 miles northwest of town of Addy. 

(Bennett, 1944, p. 6-8, 31-33, pi. 10; Bennett, 1945, p. _15.) 

Deposit: Dolomite, light-gray to white, some banding, medium to 

coarsely crystalline. Fresh sample from outcrop, fragments taken every 

5 ft, usually for a length of 50 ft. Tonnage estimated. Index and geologic maps. Former use: Building stone. Possible use: General uses 

of dolomite; refractories, crushed stone; for those analyses with more 

than 20 percent MgO, source of magnesia. 

1419-1434. NEiNWi sec. 35. Owner, W. G. Merryweather. 

Sample

1419.

1420.

1421.

1422.

1423.

1424.

1425.

1426.

516

517

518

519

520

521

522

523

1439, 1440.

1441, 1442.

1435-1438. SEiNWl sec. 35. Samples 534-537.

Stevens County. Old Dominion Limestone. Sees. 26, 27, 34, 35, 

T. 34 N., R. 38 E.. about 7 miles southwest of town of Colville. 

Crystal Marble Co. Analyst, R. W. Thatcher. Lab. Nos. 67, 68. 

(Shedd, 1903, p. 113. jj.4-116, 137. 139, 140, 142; Weitz, 1942, 

p. 2, 75, J9, 82; Mills, 1962, p. 164.) Dolomite, coarsely crystalline. Index maps. Possible use: Source of magnesium, refractories.

Stevens County. Old Dominion Limestone. [Ts. 36, 37, N., R. 40 E.], 

about 16 miles northeast of Colville. Colville Marble Co. Analyst, 

R.W. Thatcher. (Shedd, 1903. p.120,^21,142; Mills, 1962. p.170.)

1441. ( Eckel, 1905. p. 324, 325.) Limestone, white, crystalline. 

Use: [Dimension stone]. Possible use: Portland cement.

1442. (Shedd. 1913. p. 131. 246, pi. 21.) Marble, very dark gray, 

coarse- to fine-grained. Index map. Use: Portland cement 

[ implied].

1443-1447. Stevens County. Cambrian. Maitlen Phyllite. Reeves Limestone Member. 

Sec. 35, T. 40 N., R. 41 E. Cedar Lake deposit. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Mills. 1962, p. 12, 13, 62, 68-JO. 250. 262, 264. pi. 1.) Limestone, 

white to cream-whtte, medium- to coarse-grained, well-bedded; 

1,000 ft exposed. Chip sample from outcrop. Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement, mineral 

filler, pulp and paper industry.

1443-1446. Nz-SEi sec. 35. Samples S-163 to S-166. 

1447. WjSEi sec. 35. Sample S-167.

1448. 1449. Stevens County. Cambrian. Metaline Limestone. [T. 36 N.. R. 37 E.], 

about 2 miles south of town of Kettle Falls. Fishs ranch. Analyst, 

A. A. Hammer. Samples 42. 43. (Shedd. 1913. p. 142. 143. 245. 

pi. 21; Mills. 1962. p. 143-145.) Limestone. Index map. Former 

use: Lime. 

1448. Limestone, gray, crystalline, stratified.

1450-1452. Stevens County. Cambrian, Clugston Creek Limestone. Sees. 1, 12, 

T. 37 N., R. 39 E., 8.5 miles from town of Bossburg. Keystone 

Marble Co. Analyst, R. W. Thatcher. (Shedd. 1903, p. 116. 117. 

137. 139, 140. 142; Mills. 1962. p. 171.) Possible u*e: Dimension 

stone [implied].

1450. [Limestone] marble, white, massive, coarse-grained. Bulk

density 2.724. Thin-section description, physical properties.

1451. Marble, dark-gray to black, massive. Thin-section description.

1452. Limestone, marble, gray, massive. Thin-section description, 

physical tests.

source of analysis]

Washington Continued

1453. Stevens County. Cambriarf?). Northport Limestone( Mills, 1962, p. 107). 

Sees. 13, 18, T. 35 N., Rs. 39, 40 E., about 4 miles east of Colville. 

Standard Marble-Onyx Co. Analyst, R. W. Thatcher. ( Shedd, 1903, 

p. 119. J.20, 137. 142; Shedd, 1913, p. 134. ^35. 246, pi. 21.) 

[Calcareous dolomite] magnesian limestone, light-gray, massive; 

uniform in texture; 100 ft exposed. Bulk density 2.873. Index map. 

Thin-section description, physical properties.

1454-1460. Stevens County. Northport Limestone. NWiNEi sec. 21, T. 35 N., 

R. 39 E.. 1 mile south of Colville. Hoeft property. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Mills, 1962, p. 12, 13, 173, 175, 176, 248, 259, 264, pis. 1, 6.) 

Limestone, gray, fine- to medium-grained. Chip sample from outcrop. 

Tonnage estimated. Index and geologic maps. Possible use: Portland 

cement.

Sample

1454. S-70 1458.

1455. S-72 1459.

1456. S-73 1460.

1457. S-74

1461-1465. Stevens County. Northport Limestone. Probably sec. 21, T. 35 N., 

R. 39 E., 1.5 miles south of Colville. Hams ranch. Analyst, 

A. A. Hammer. ( Shedd, 1913. p. 132, 133. 245. 246. pi. 21; 

Mills, 1962, p. 173, JL74-176.) Tonnage estimated. Index and geologic maps. Possible use: Portland cement.

1461. 1462. Samples 53, 54. Limestone, dark-gray to black, finegrained, crystalline. Surface sample.

1463-1465. Limestone, dark; contains calcite. [For another analysis from same drill hole, see sample 421, group Fj.]

1463. Sample 72; depth 80 ft.

1464. Sample 71; depth 60 ft.

1465. Sample 69; depth 20 ft.

1466. Stevens County. Northport Limestone. SEiNEi sec 26. T. 36 N.,

R. 39 E.. about 5 miles northeast of Colville. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Sample S-114. ( Mills, 1962, p. 12, 13, 165. 167. 168, 249. 261. 

264, pis. 1, 6.) Limestone, light-gray, fine-grained, well-bedded; 

23 ft sampled. Chip sample from outcrop. Index and geologic maps. 

Possible use: None, rock impure.

1467. County, formation, analysts, reference, maps, and use as in sample

1466. NW4 sec. 35, T. 36 N., R. 39 E., 3 miles north of Colville. 

Samples-120. Limestone, dark-gray to black, fine-grained, mediumbedded, argillaceous; contains layers of dolomitic limestone. Chip 

sample from outcrop.

1468. County, formation, analysts, and maps as in sample 1466. NWl NEi

sec. 13, T. 37 N., R. 39 E., about 14 miles from Colville. Jefferson 

Marble, Mining, and Milling Co., abandoned quarry. Sample S-23. 

( Mills, 1962, p. 12, 13, 171, 172. 247. 258, 264. pis. 1, 6.) Limestone, white to pinkish-white, medium-grained; weathers white to pale 

yellow; contains mica and dolomite. Chip sample from outcrop. Possible use: Portland cement; deposit too remote for development.

1469. 1470. Stevertfr County. Northport Limestone. Sec. 17, T. 38 N., R. 37 E., 

near town of Barstow. Analyst, under supervision of Mark Adams. 

( Mills, 1962. p. 12. 13, 133. 134, 249. 262, 264, pi. 1.) Dolomite, 

white to brownish-white, fine-grained, massive to moderately well 

bedded; weathers gray; contains quartz and tremolite. Chip sample 

from outcrop. Index and geologic map. Possible use: None, rock 

impure.

1469. NEiNW? sec. 17. Spectrochemical analyst, C. E. Harvey. 

Sample S-147.

1470. SWiNWi sec. 17. Sample S-146.
184 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

SiOj ____________

R,0,

MgO

CaO

P|05 ____________

Ignition loss 1 _ __

Total _______

Class ____________

CaO/MgO

SiOj ____________

R^O, ____________

MgO ____________

CaO ____________

H,0- ___________

P.O.

Ag _____________

Au _____________

Zn _____________

Pb _____________

Ignition loss __ _ _

Total _______

Class ____________

CaO/MgO ________

Ao

Au _ 

Zn ___ __ _

Pb _____________

Total _______

CaO/MgO

SiO, ____________

R,0, ____________

MgO ____________

CaO

p_(V

Au _____________

Zn _____________

Ignition loss _ _ __

Total _ __ _

Class _ _ ___

CaO/MgO _ _

1471

46F,42-47

1.09

.38

16.33

36.41

.010

45.93

[100.15]

0,1,98

Calcareous 

dolomite

1484

46F, 

42-55

0.64

.30

4.98

49.98

.014

'44.06

[99.97]

0,1,98

Magnesia n 

calcite

1497

46F, 

43-162

6.7

20.5

31.6

.005

<.05

<.05

[58.9]

7.0,86

Dolomite

1510

46Fi 

42-292

5.9

19.0

28.2

[53.3]

. 6,0,90

Dolomite

1472

46F,42-48

0.70

.74

19.72

31.85

.018

45.72

[98.75]

0,1,96

Dolomite

1485

46Fj 

42-56

1.62

.28

7.03

46.73

.004

'43. 98

[99.64]

1,1,97

Magnesian 

calcite

1498

46F,

42-294

6.2

20.5

31.2

.005

<.05

<.05

[58.0]

6,0,88

Dolomite

1511

46F, 

42-280

3.9

19.8

29.3

.60

<.05

[53.6]

4,0,94

Dolomite

1473

46Fj42-49

5.11

2.04

1.10

50.81

.133

40.94

[100.13]

2,6,92

Calcite

1486

46F, 

42-57

0.75

.21

4.16

51.16

.007

'44.18

[100.47]

0,1,99

Magnesian 

calcite

1499

46F, 

43-143

9.7

19.5

28.2

Trace

<.05

<.05

[57.5]

10,0.89

Dolomite

1512

46F, 

43-139

8.3

18.4

27.4

.74

<.05

[54.9]

8,0,87

Dolomite

1474

46Fj42-50

3.84

1.66

4.29

47.88

.150

41.90

[99.72]

1,5,93

Magnesian 

calcite

1487

46F, 

42-58

1.42

.15

2.41

52.40

.005

'43.31

[99.70]

1,0,97

Magnesian 

calcite

1500

46F, 

42-296

6.5

20.2

28.8

<.05

<.05

[55.6]

6,0,93

Dolomite

1513

46F, 

43-137

8.1

18.1

28.1

<.05

[54.4]

8,0,88

Dolomite

Washington Continued

1475 1476 1477

46Fj42-51 46Fj42-52 46F,42-53

2.47 2.62 2.63

.85 .75 .88

.98 2.98 4.00

52.87 50.63 49. 5d

.083 .050 .061

42.47 42.69 42.73

[99.72] [99.72] [99.80]

1.2,96 1,2,95 1,3,95

* Magnesian Magnesian 

calcite calcite

Washington Continued

1488 1489 1490

46Fj 46F, 46F, 

41-246 42-65 42-66

1.00 0.72 0.65

_____ .60 .23

1.60 3.00 1.20

53.96 51.23 54.18

_____ .008 .011

*43.27 '43. 06 1 42.64

99.83 4 [98.62] 4 [98.91]

1,0,98 0,1,97 0,1,96

Calcite Ma8°MlaD Calcite 

calcite

Washington Continued

1501 1502 1503

46Fi 46FX 46F, 

42-282 43-141 42-288

4.4 9.4 5.2

20.5 18.2 19.9

29.5 27.6 28.7

Trace 1.07 .21

Trace .01 .01

<.05 .30 .80

<.05 1.80 <.05

[54.5] [58.4] [54.9]

4,0,95 9,0,87 5,0.93

Dolomite Dolomite Dolomite

Washington Continued

1514 1515 1516

46F, 46F, 46Ft 

42-295 42-69 42-70

6.5 0.83 0.72

_____ .20 .20

19.0 .27 .21

27.9 54.99 55.50

_____ .017 .010

.40 _____ _____

_____ 43.62 43.14

[54.9] [99.93] [99.78]

6,0,90 0,1,99 0,1,98

Dolomite Calcite Calcite

1478

46Fj42-59

0.70

.41

1.59

54.53

.010

43.44

[100.68]

0,1,98

Calcite

1491

46F, 

42-64

0.45

.27

.38

54.97

.006

'43.54

[99.62]

0,1,99

Calcite

1504

46F, 

43-135

7.8

17.8

29.3

Trace

.60

<.05

[55.6]

8,0,90

Dolomite

1517

46F,

42-71

0.42

.17

.30

55.39

.013

43.57

[99.86]

0,0,99

Calcite

1479

46F,42-60

1.23

.39

3.65

51.24

.016

43.70

[100.23]

1,1,98

Magnesian 

calcite

1492

46F2 

42-67

0.38

.15

.56

55.34

.018

'43.44

[99.89]

0,0,98

Calcite

1505

46F, 

42-297

6.7

17.7

28.6

Trace

.40

<.05

[53.4]

7,0,88

Dolomite

1518

46F, 

42-72

0.64

.17

.31

55.36

.009

43.41

[99.90]

0,0,98

Calcite

1480

46F,42-61

0.43

.23

3.70

51.24

.044

43.64

[99.28]

0,1,98

Magnesian 

calcite

1493

46F, 

42-68

0.38

.22

.76

55.21

.008

'43.26

[99.84]

0,1,98

Calcite

1506

46F, 

42-299

7.4

18.2

28.6

Trace

Trace

<.05

<.05

[54.3]

7,0,89

Dolomite

1519

46F, 

42-73

0.70

.10

.39

55.02

.010

43.64

[99.86]

1,0,99

Calcite

1481

46F,42-62

0.96

.13

6.40

47.79

.029

43.78

[99.09]

1,0,97

Magnesian 

calcite

1494

46F, 

42-298

6.8

13.9

35.2

.42

Trace

.20

<.05

[56.6]

7,0,92

Calcareous 

dolomite

1507

46F, 

42-273

2.9

20.0

29.4

.12

Trace

<.05

<.05

[52.5]

3.0,94

Dolomite

1520

46F2 

42-74

1.41

.12

.87

54.10

.017

43.16

[99.68]

1,0,98

Calcite

1482

46F,42-63

1.61

.16

6.70

46.95

.004

43.64

[99.06]

1,0,97

Magnesian 

calcite

1495

46F, 

43-136

7.8

18.6

29.0

Trace

Trace

<.05

<.05

[55.5]

8,0,91

Dolomite

1508

46F, 

42-290

5.3

19.1

29.0

Trace

Trace

<.05

<.05

[53.5]

5,0,92

Dolomite

1521

46F, 

42-75

0.87

.12

1.12

53.81

.020

43.46

[99.40]

1.0.98

Calcite

1483

46F,42-54

1.01

.20

2.20

52.97

.009

43.62

[100.01]

1,1,98

Magnesian

1496

46F, 

43-140

9.0

18.1

26.5

1.22

Trace

2.40

.80

[58.0]

9,0,85

Dolomite

1509

46F, 

42-281

4.0

19.5

29.0

Trace

Trace

<.05

<.05

[52.6]

4,0,93

Dolomite

1522

46F, 

42-76

1.83

.18

.72

53.89

.020

43.03

[99.67]

2,1,97

Calcite

'Sample dried at 1108-1128 C; ignition 

loss 1,000°-1,100°C.

*At 110° C.

1 CO,.

4 Na|O=235 ppm. K2O=620 ppra. 

TiO»= <30 ppm, S = 30 ppm.
ANALYSES OF SAMPLES 185

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LijO,BeO.BiOj.KiO.Sc,O,,VjOjf NiO,CoO,ZnO,Ga,Oj,GeO,,As,Oj.YjO,, ZrO2 .Nb^)6 ,MoOj,AgjO.Ru,

TiO, ______

Tr.flu

MnO ___ _

CuO ______

SrO ______

PbO ______

Na»0_ _____

TiO, ______

0*0, _____

MnO ______

CuO ______

SrO _______

PbO ______

Na,0 __ 

TiO, _____

0*0, _____

MnO ______

1471

_____ 0.0076

_____ .03

_____ .0014

_____ .012

1484

_____ 0.0052

___ _ .038

_____ .0013

_____ .014

}ie i4vy, Agj

1472

0.075

.0048

.006

1485

0.0084

.043

.0019

.013

O =0.0012

1473

0.054

.043

.00067

.34

.0011

.018

1486

0.004

.032

.0017

.012

1519

0.017

percent j

1474

0.135

.053

.00096

.24

.0012

.018

1487

0.021

.0014

.014

1520

0.021

1475

0.14

.026

.0005

.21

.0018

.016

.0045

1489

0.002

,014

.00077

.0098

.023

1521

0.037

1476

0.17

.022

.0005

.10

.0017

.014

.0064

1490

0.002

.02

.0010

.010

.0041

1522

.016

1477

0.29

.042

.00096

.048

.0022

.018

1491

0.023

.0015

.012

CuO ____

SrO ____

PbO ____

1478

0.002

.015

.0010

.012

1492

0.01

.022

.00088

.012

1479

0.002

.035

.0037

.011

.018

1493

0.0084

.025

.00083

.011

1480

0.002

.029

.00093

.011

1515

0.0048

.011

.00077

.011

1519

0.0022

.011

1481

0.002

.034

.0017

.012

1516

0.0056

.012

.0012

.011

1520

0.0014

.011

1482

0.002

.025

.00093

.0098

1517

0.002

.013

.0012

.011

1521

0.0025

.015

1483

0.010

.029

.0014

.014

1518

0.002

.013

.00088

.011

1522

0.00094-

.010

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

W ashington Continued

1471,1472. Stevens County. Cambrian!?), Northport Limestone. T. 38 N.. 

R. 37 E., near town of Barstow. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962, 

p. 12. 13, 133. 134. 249. 262, 264. pi. 1.) Dolomite, white to 

brownish-white, fine-grained, massive to moderately well bedded; 

weathers gray; contains quartz and tremolite. Chip sample from 

outcrop. Index and geologic map. Possible use: None, rock impure.

1471. NEiSWi sec. 17. Samples-149.

1472. W| sec. 17. Sample S-148.

1473-1477. Stevens County. Northport Limestone. NEi sec. 25, T. 38 N.. R. 37 E., 

0.75 mile north of town of Bossburg. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Samples S-68, 

S-69, S-143 to S-145. (Mills, 1962, p. 12, 13, 107, 113-116. 248, 

249. 259, 262, 264, pi. 1.) Limestone, white to light-gray, mediumgrained, thin-bedded. Chip samples from outcrop; together represent 

about 120 ft. Index and geologic maps. Possible use: None, rock 

impure.

1478- 1487. County, formation, analysts, maps, and use as in samples 1473-1477. 

NWi sec. 12, T. 38 N., R. 38 E., 5 miles northeast of Bossburg, 

China Bend area. Samples S-5 to S-9, S-138 to S-142. ( Mills, 1962, 

p. 12, 13, 102-104, 105, 247, 249. 257, 261, 262, 264, pi. 1.) 

Limestone, white to light-gray, medium-grained, thick-bedded. 

Chip sample from outcrop.

1488. Stevens County. Northport Limestone. Sec. 12, T. 38 N., R. 38 E., 

Ryan station. Florentine Marble Co. Analyst, R. W. Thatcher. 

(Shedd. 1903. p. 130,^31, 142; Mills, 1962. p. 102,^04.) Limestone, light-gray, fine-grained, bedded. Use: Dimension stone 

[ implied].

1489- 1493. Stevens County. Northport Limestone. T. 38 N., R. 38 E., about 

4 miles northeast of Bossburg. Columbia Rock Co. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Samples S-10, S-ll, S-52 to S-54. ( Mills, 1962, p. 12, 13. 105-107, 

247, 248, 257, 259, 264, pi. 1.) Limestone, interbedded light- and 

dark-gray, medium-grained, thin-bedded. Chip sample from outcrop. 

Tonnage estimated. Index and geologic maps. Possible use( except 

sample 1489): Cement, mineral filler, chemical, metallurgical, 

builders' lime, sugar industry, pulp and paper industry.

1489-1491. NWiNWi sec. 14. 

1492, 1493. SEiNEi sec. 15.

Washington Continued

1494- 1514. Stevens County. Northport Limestone. Sec. 28, T. 38 N., R. 38 E., 

0.25 mile northeast of Bossburg. Young America mine. Analyst, 

under supervision of M. Wright. ( Hundhausen, 1949. p. 3, 7, 9, 10, 

11, figs. 1, 2, 6, 8.) Silicified dolomite. Mineralogy. Index and 

geologic maps, geologic section.

1494-1503. Drill hole 9. [For another analysis from same drill hoi' 

see sample 423, group Ft .]

	Depth (ft)

1494. 240.2-250.8

1495. 224.5-231.6

1496. 217.0-221.5

1497. 175.8-185.9

1498. 165.2-175.8

1499. 154.6-165.2

1500. 144.0-154.6

1501. 137.7-144.0

1502. 135.7-137.7

1503. 130.5-135.7

1504-1514. Drill hole 15. [For other analyses from same drill hole, 

see samples 424-427, group Ft .]

1515- 1522. Stevens County. Northport Limestone. Sec. 33, T. 38 N., R. 38 E., 

0.75 mile east of Bossburg. Carrol property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Samples S-48 to S-51, S-98 to S-101. ( Mills, 1962, p. 12. 13, 107. 

108. 110, 112, 113, 247-249, 259, 260, 264, pi. 1.) Limestone, 

white through gray to dark-gray, medium-grained, thin-bedded. Chip 

sample from outcrop. Tonnage estimated. Index and geologic maps. 

Possible use: Cement, mineral filler, builders' lime, ceramic whiting, 

sugar industry, pulp and paper industry
186 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Fg),common-rock category Continued

Chemical analyses Continued

1523 1524

W ashington Continued 

"1527"" "" 1528" " 1J 1530 1532 1533

46F242-77 46Fj42-78 ^46F^42^79^46F^42-80 46Ft42-81 46Ft42-82 46Fj42-83 46F,42-84 46Fj42-85 46F,42-86 46Fj42-87 46Ft42-88 46Fj42-89

SiOj 

R,0, 

MgO 

CaO 

P,0S

ion loss i

___ 0.96

___ .16

___ .33

___ 54.83

___ .017

___ 43.21

1.60

.15

.73

54.47

.011

43.35

1.14

.26

.74

54.56

.035

43.52

1.14

.20

1.33

53.52

.047

43.73

2.12

.19

.68

.030

43.15

0.97

.25

1.30

53.93

.050

43.71

1.02

.15

1.44

53.59

.015

43.79

3.05

.13

.90

53.04

.026

42.62

0.58

.14

.30

55.08

.017

43.49

0.72

.19

.34

55.16

.031

43.57

0.42

.12

.34

55.02

.041

43.52

0.81

.18

.31

54.98

.011

43.35

1.54

.19

.18

54.66

.014

43.08

Total _______ [99.51] *[100.31] *[100.26] *[99.97] *[100.23]*[100.21] [100.01] [99.77] [99.61] [100.01] [99.46] 3 [99.64] 3 [99.66]

Class___ 

CaO/MgO

1,0,98 

Calcite

1.0.98 

Calcite

1,1,99 

Calcite

1,1,98 

Calcite

1.1,98 

Calcite

1,1,99 

Calcite

1,1,99 

Calcite

3,0,96 

Calcite

0,0,99 

Calcite

0,1,99 

Calcite

0,0.99 

Calcite

1,1,98 

Calcite

1,1.98 

Calcite

1536 1537

46F,

42-90

46FZ 

42-91

_ _ ____Washington Continued____ _ _ _ _ _

1538 ~ ~1539~ JTsST" ~154T~^1542' J543~ " 1544^ 

46F, 46Fj 46Fj 46Fj 46F.~ 46F, " ~46F2 

42-92 42-93 42-94 42-95 42-96 42-97 42-98

SiOz 

R«03 

MgO 

CaO

Ignition loss ' 

Total .

0.26

.13

.17

55.45

.007

43.60

1.31

.14

.27

54.74

.016

43.20

0.58

.13

.24

55.32

.016

43.54

3.61

.32

1.89

51.76

.022

41.43

3.05

.29

1.54

51.91

.028

42.20

1.53

.16

1.61

53.03

.020

42.75

2.37

.03

3.21

51.23

.027

42.76

0.50

.12

1.10

54.38

.021

43.16

1.87

.35

7.27

46.30

.033

43.61

1545 1546 

46F, 46F2

42-99 __42-100 

2.06

1547 1548

46F2 46F2 

42-101 42-102

.29

4.17

50.18

.038

42.94

1.01

.00

2.18

53.10

.021

43.49

0.72

.14

1.35

54.00

.025

43.12

0.75

.39

2.38

52.39

.021

42.99

Class . 

CaO/MgO

'[99.62] 3 [99.68] '[99.83] [99.03] [99.02] [99.10] [99.63] [99.28] [99.43] [99.68] [99.80] [99.35] [98.92]

0,0,99 1,0.98 0,0,99 3.1,93 3,1,95 1,0,96 2,0,96 0,0,98 1.1.96 2,1,96 1,0,98 0,0,97 0,1,97

Macnesian Magnesian Magnesian Magnesian _ , . Magnesian Calcite Calcite Calcite Calcite Calcite Calcite B. . Calcite 6, . 6, . , Calcite ^ .

calcite calcite calcite calcite calcite

1549 1550 1551 1552

Washington Continued

1553 1554 1555 1556 1557 1558 1559 1560 1561

SiOj ______

AljO» + Fe,O3 

MgO . 

CaO ______

P,0S . 

Ignition loss .

46F, 46F2 46Fj 46F2 46F, 46F2 46FS 46F, 46Ft 46Ft 46F, 46FZ 46FZ

42-103 42-104 42-105 41-251 41-253 __41-252_ 41-250 41-255 41-258 41-256 41-254 _41-257 42-109

0.67 2.31 2^21 0~.86 bTsl oT&T ~ 0.78 0.65 0.51 1.13 0.96 1.41

4 .03 4 .03 4 .11 .26 .34 .19 .51 .31 .45 .26 .20 .41

.88 .62 1.46 .96 1.15 .96 1.08 .81 Trace 1.46 1.06 .96

54.68 54.00 52.80 54.86 54.26 54.32 53.90 54.64 54.85 53.65 54.16 53.16

.014 

'43.38

.013 

'42.35

.010 

'42.50 42.50 42.30 42.54 42.92 43.10 42.68 43.00 43.16

1.67 

4 .70 

.75 

53.45

.006 

'42.72

Total ______ [99.65] [99.32] [99.09] 99.44 98.56 98.66 98.27 99.33 98.91 99.18 99.38 99.10 5[99.30]

Class _________

CaO/MgO _____

__ 1,0,98

__ Calcite.

2.0,96

Calcite

2,0,96 0.1,96

Calcite

0,1,96 0,1,96 0,1,95

Calcite

0,1,97

Calcite

0,1,98

Calcite

1.1,96

Calcite

1,1,97

Calcite

1.1.9V

Calcite

0,2,96

Calcite

1562 1563 1565

Washington Continued

1566 1567 1568 1569 1571 1573 1574

46F2 46F2 46F2 46FZ 46F2 46F2 46F2 46F2 

42-110 42-111 42-112 42-113 42-106 42-107 42-108 41-110

SiOj __ ____ .

Fe.0, .

MgO ________ .

CaO ________ .

__ 0

__ 54

.__ '43

.53 

.32

.90 

.16 

.005 

.18

0.63 

4 .29

.82 

54.55 

.005 

! 43.18

1.59 

4 .52

.97 

53.66 

.005 

'42.89

0.81 

4 .35

.52 

55.32 

.004 

'42.79

2.69 

4 1.28

1.43 

51.84 

.014 

1 42.24

2.62 

* 1.02

.92 

52.81 

.004 

'42.16

0.55 

4 .34

1.57 

53.73 

.003 

1 43.78

0.86 

.40

.28 

54.62

43.74

46F2 46F, 46Fj 46Ft 46F2 

41-112 41-111 41-113 41-116 41-115

{

0.82 ______ _____ _____ ___ _

.59 ______ _____ ____ ______

.53 ______ _____ ______

.06

55.05 55.32 55.40 55.38 55.34

42.30 _ _____ _____ _____

Total

Class _____ 

CaO/MgO__

6 [99.09] 5 [99.47] 5[99.63] 5[99.79] [99.49] [99.53] [99.97] 99.90 99.35 [55.32] [55.40] [55.38] [55.34]

0,1,98

Calcite

0,1,98 1,2,97 0,1,97 1,4,95 1,3,95 0,1,99 0,2,98 0,2.96 0,0,99 0,0,99 0,0,99 0,0,99

Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite

'Sample dried at 1100-112°C; ignition loss 1,000°-1.100°C.

*A composite of samples 1524-1528 contains NajO = 135 ppm, 

KjO = 490 ppm, TiOj = < 30 ppm, S = 14 ppm.

*A composite of samples 1534-1538 contains NajO= 125 ppm. 

KjO = 300 ppai, TiO, =< 30 ppm, S= 14 ppm.

4 R,Ol.

*A composite of samples 1561-1565 contains NajO = 235 ppm, 

KjO = 660 ppm, TiOj= < 30 ppm, S = 30 ppm.
ANALYSES OF SAMPLES 187

Spectrochemical analyses 

[ The metallic elements not detected in the spectrochemical analysis: LijO.BeO.BjOj.NajO.KjO.ScjOj.VjOj.NiO.CoO.ZnO.GazOs.GeOj.AstOj.YjOj.ZtOj.NbtOj.MoOj.Ru.Rh,

1523

TiO, ___ 0.0076

Cr2 03 ______

MnO ___ .017 

CuO ___ .0012 

SrO ____ .013

Ag,0 ______

TiO, ____________

Cr,0, ___________

MnO __________ _

CuO ____________

SrO ____________

AgjO ____________

TiO, ____________

Cr,0, ___________

MnO ____________

CuO ____ _ _ _

SrO _____________

Ag,0 ___________

TiO, ____________

Cr,0, ___________

1524

0.002

.017 

.00066 

.021

1536

0.002

.010

.0018

.019

1549

0.0036

.028

.0027

.013

.00088

1566

0.051

.0013

1525

0.002

.022 

.0016 

.021

1537

0.002

.016

.0095

.026

.0002

1550

0.0032

.019

.0017

.010

.00041

1567

0.035

.00083

1526

0.002

.032 

.0016 

.021

1538

0.0047

.009

.0031

.023

1551

.018

.0020

.011

.0005

1568

0.0048

1527

0.0068

.016 

.0019 

.019

1539

0.002

.058

.0044

.016

0.003

.017

.0047

.012

CuO _ .

1528

0.0068

.017 

.0015 

.014

1540

0.008

.0005

.050

.0026

.015

1561

0.029

.049

.00093

.0094

1529

0.022 

.0019 

.015

1541

0.002

.032

.0016

.017

1562

0.002

.030

.00052

.011

1566

0.062

.0017

1530

0.020 

.0012 

.011

1542

0.006

.036

.0021

.015

0.002

.028

.00047

.013

1567

0.068

.0026

0.027 

.0014 

.010

1543

0.002

.037

.0015

.015

15

0.002

.014

.0013

.0098

1568

0.043

.0017

1531

0.0052

.016 

.0022 

.014

1544

0.002

.0005

.078

.0037

.012

33

0.006

.024

.0006

.012

SrO ___

AftO 

1532

0.009

.012 

.0060 

.018

1545

0.0036

.048

.0023

.012

1564

0.019

.0006

.04

.00077

.016

1533

0.002

.039 

.010 

.020

1546

0.0044

.029

.0023

.015

0.01

.045

.00066

.011

1566

0.016

1534

0.0038

.007 

.0027 

.022

1547

0.002

.028

.0024

.015

1565

0.0092

.021

.00071

.014

1567

0.014

1535

0.002

.008 

.0038 

.023

1548

0.012

.0025

.038

.0024

.0098

.00055

0.008

.019

.00077

.013

1568

0.0098

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

1523-1551. Steveas County. Cambriari ?), Northport Limestone. Sec. 33. T. 38 N.. 

R. 38 E., 0.75 mile east of town of Bossburg. Carrol property. Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C E. Harvey. (Mills, 1962. p. 12, 13, 107. 108. 110, 112. 113, 

248-251, 260, 261, 263, 264, pi. 1.) Limestone, white through gray 

to dark-gray, medium-grained, thin-bedded. Chip sample from 

outcrop. Tonnage estimated. Index and geologic maps. Possible use: 

Cement, mineral filler, builders' lime, sugar industry, pulp and paper 

industry, ceramic whiting.

1523. Samples-102.

1524 - 1530 Samples S- 91 to S- 97.

1531-1538. Samples S-104 to S-111.

1539-1551. Samples S-199 to S-211.

1552-1555. Stevens County. Northport Limestone. Sees. 27, 28, 33, 34, T. 38 N., 

R. 38 E., Bossburg, Silver Queen Mountain. Analyst, A. A. Hammer. 

( Shedd, 1913, p. 150, 151, 245, pi. 21.) Limestone, white or gray, 

crystalline, stratified. Thin-section description. Index map. Possible 

use: Portland cement.

1552-1554. Samples 46-48. (Mills, 1962, p. 107. 111.) 

1555. Sample 49.

1556- 1560 Stevens County. Northport Limestone. T. 38 N., R. 38 E., near

Bossburg. Analyst, A. A. Hammer. Samples 90-94. (Shedd. 1913, 

p. 15U. 151, 246, pi. 21; Mills, 1962, p. 107, 111.) Limestone, 

gray, coarsely crystalline, stratified. Thin-section description. Index 

map. Possible use: Portland cement.

Washington Continued

1561-1568. Stevens County. Northport Limestone. SEi SW* sec. 29, T. 38 N.. 

R. 41 E., 2 miles north of town of Aladdin. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

( Mills, 1962, p. 12, 13. 70-73_. 247. 258, 264, pis. 1, 3.) Limestone, light-gray, medium- to coarse-grained, massive; 160 ft thick. 

Chip sample from outcrop. Tonnage estimated. Index and geologic 

maps. Possible use: Portland cement, mineral filler, pulp and paper 

industry, builders' lime.

1561 - 1565. Samples S-24 to S-28 represent 30 ft.

1566, 1567. Samples S-160, S-161 represent 160 ft. May be some 

contamination by soil particles.

1568. Sample S-162 represents 45 ft.

1569-1574. Stevens County. Northport Limestone. SW| sec. 13, T. 39 N.,

R. 39 E., about 4 miles south of town of Northport. Norton and Ornduff 

property. ( Hodge, 1938d. p. 13, 95. 116, 119-221; Mills. 1962. 

p. 74, J33-95.) Tonnage estimated. Index and geologic maps. Use: 

Pulp and paper industry.

1569. Analyst, E. W. Lazell. Limestone, gray to dark-gray, 

fine-grained, moderately well bedded; 50-75 ft thick. 

Possible use: Portland cement.

1570-1574. Limestone, white to cream, crystalline, laminated.

1570. Possible use: Portland cement. 

1571-1574. Analyst, E. W. Lazell.
188 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group FZJ, common-rock category Continued

SiO, ___ _.

R.O, .

MgO .

CaO _______ .

P,05 .

Ignition loss _ _ .

Total __ .

CaO/MgO __ __.

SiO, __ ___ 

R»0, _________

MgO _________

CaO _________

P,05 _________

Ignition loss 1 _ _

Total ____

CaO/MgO ____ .

SiO, _________

A1.0, .

Fe,0, .

MeO ________

CaO _________

Ignition loss ____

Total ____

Class _________

CaO/MgO _____

SiO, _________

Al,0, .

Fe_0, .

MgO _________

CaO _________

Ignition loss ____

Total ____

Class _________

CaO/MgO _____

SiO, _________

R«0S _

MgO _________

CaO _ _ _____

Ignition loss ____

Total ___.

CaO/MgO _____

1575

46F,

41-114

.___ 55.44

.___ [55.44]

.___ 0,0,99

__ _ Calcite

1588

46F2 

41-279

__ 6.04

_ _ 1 50.4

, [56.4]

. __ 0.0,97

Magnesian

calcite

1601

46F, 

42-134

. ___ 3.76

. ___ 2.31

. ___ .16

. ___ .98

. ___ 51.83

. ___ 40.57

. [99.61]

. ___ 0,6,91

. ___ Calcite

1614

46F,

42-148

. ___ 3.96

. ___ 1.31

. ___ .20

. ___ 1.45

. ___ 52.41

. ___ 41.24

. ___ [100.57]

. ___ 1,4,92

1627

46F2 

41-169

._ _ 0.84

. ___ .31

. ___ '21.44

. ___ '30.25

. ___ 6 47.16

. ___ [100.00]

___ 0,1,99

__ _ Dolomite

1576

46F2 

42-114

2.16

1.39

1.29

51.34

2 42.72

'[98.91]

0,4,94

1589

46F, 

41-278

5.6

'51.0

[56.6]

0,0,97

Magnesian

calcite

1602

46F, 

42-135

4.68

1.43

.36

6.63

44.99

41.68

[99.77]

2,5,91

Magnesian

calcite

1615

46F, 

42-149

2.33

1.79

.22

1.17

53.07

41.93

[100.51]

0,4,94

Calcite

1628

46F, 

41-170

1.56

.40

'21.25

1 30.02

8 46.77

[100.00]

1,1.98

Dolomite

1577

46F,

42-115

1.40

.74

1.42

52.44

*43.65

'[99.65"

0.3,97

1590

46F, 

41-271

2.49

1 52.7

[55.2]

0,0,99

Magnesian

calcite

1603

46F, 

42-136

1.57

.61

.16

.53

54.68

42.59

[100.14]

0,2,96

Calcite

1616

46F, 

42-150

8.43

.94

.14

1.35

50.02

39.49

[100.37]

7,3,89

1629

46F, 

41-171

1.58

.26

'21.30

'30.03

*46.83

[ 100 .00 ]

1,1,98

Dolomite

1578

46F, 

42-116

.79

1.43

52.30

* 43.38

I '[99.41]

0,3,96

Calcite

1591

46F, 

42-124

4.59

1.33

1.96

50.48

.014

41.56

[99.93]

2,4,93

Magnesian

calcite

1604

46F, 

42-137

1.88

.99

.22

3.42

50.72

42.93

[100.16]

0,3,96

Magnesian

calcite

1617

46F, 

42-151

5.58

.65

.26

.57

52.21

40.83

[100.10]

4,3.92

Calcite

1630

46F, 

41-129

1.0

1.1

21.6

30.0

46.1

[99.8]

0.2,96

Dolomite

Chemical analyses Continued

Washington Continued

1579 1580 1581

46F2 46F2 46F, 

42-117 42-118 42-119

1.33 2.02 6.00

.65 .94 2.30

.56 1.26 .80

54.38 52.80 49.96

.011 .004 .014

*42.91 I 42.61 *40.02

[99.84] [99.63] [99.09]

1.2.97 0,3,96 2,8,89

Calcite Calcite Calcite

Washington Continued

1592 1593 1594

46F, 46F, 46F, 

42-125 42-126 42-127

3.13 3.12 5.11

1.18 1.42 1.52

1.21 1.95 2.60

52.06 51.23 48.98

.014 .018 .009

42.22 42.32 41.46

[99.81] [100.06] [99.68]

1,3,95 1,4,95 3.4,92

Magnesian Magnesian 

Calcite , . , .

calcite calcite

W ashington C ontinued

1605 1606 1607

46F, 46F, 46FS 

42-138 42-139 42-140

1.61 0.75 3.00

1.09 .72 .97

.24 .08 .22

1.21 4.07 .91

53.85 50.55 52.68

42.52 43.55 42.01

[100.52] [99.72] [99.79]

0,3,96 0,1,97 1,3,94

_ Magnesian . Calcite 6, Calcite calcite

Washington Continued

1618 1619 1620

46F, 46F2 46F, 

42-152 42-153 42-154

0.33 3.27 0.69

.21 1.10 .81

.08 .24 .14

.49 1.42 .33

55.92 53.02 55.28

43.32 41.30 43.03

[100.35] [100.35] [100.28]

0,1,98 1,4,93 0,1,97

Washington Continued

1631 1632 1633

46F, 46F2 46F2 

41-130 41-131 41-132

7 1.7 0.6 71.4

.8 .7 1.0

21.3 21.7 21.1

29.6 29.9 30.2

45.8 46.2 46.3

[99.2] [99.1] [100.0]

0,2.96 0,1,97 0,2,97

Dolomite Dolomite Dolomite

1582

46F, 

42-120

2.31

.90

.75

52.99

.006

2 42. 35

[99.31]

1,3,95

Calcite

1595

46F, 

.42-128

4.08

1.40

2.90

49.58

.018

41.61

[99.59]

2,4,93

Magnesian

1608

46F, 

42-141

0.29

.47

.16

.35

55.36

43.11

[99.74]

0,1,98

Calcite

1621

46F, 

42-155

1.59

.82

.14.

.61

54.37

42.02

[99.55]

0,3.95

Calcite

1634

46F, 

41-133

T 2.0

1.2

20.8

29.8

46.0

[99.8]

0,3,96

Dolomite

1583

46Ft 

42-121

4.17

1.56

1.20

51.23

.009

*41.62

[99.79]

2,5,93

Calcite

1596

46F, 

42-129

0.59

.31

.64

54.70

.005

43.54

[99.78]

0,1,99

Calcite

1609

46F,

42-142

1.08

.93

.28

8.35

45.21

43.98

[99.83]

0,2,96

Magnesian

calcite

1622

46F, 

42-156

3.00

.46

.04

.88

53.80

42.30

[100.48]

2,1,96

Calcite

1635

46F, 

41-134

0.7

.7

21.3

30.4

47.0

[100.1]

0,1,98

Dolomite

1584

46F* 

42-122

2.54

1.13

.93

52.50

.007

! 41.98

[99.09]

1,3,94

Calcite

1597

46F,

42-130

0.53

.35

.52

54.66

.005

43.51

[99.58]

0,1,99

Calcite

1610

46F2 

42-143

0.66

.46

.10

.34

55.62

43.18

[100.36]

0,1,98

Calcite

1623

46F, 

41-164

1.59

.00

'21.20

'30.03

*46.73

[99.91]

1,1.98

Dolomite

1636

46F, 

41-135

7 2.6

1.1

21.1

29.7

45.8

[100.3]

1,3,95

Dolomite

1585

46F, 

42-123

1.16

.31

.46

54.49

.017

*43.26

[99.70]

1,1,98

Calcite

1598

46F,

42-131

0.54

.29

.62

54.77

.003

43.30

[99.52]

0,1,98

Calcite

1611

46F, 

42-144

0.93

.33

.06

.33

55.35

43.09

[100.09]

0,1.98

Calcite

1624

46F, 

41-165

1.35

'21.35

'30.03

'46.89

[100.00]

1.1.98

Dolomite

1637

46F, 

41-136

71.5

.5

21.4

29.9

46.4

[99.7]

1,1,97

Dolomite

1586

46F, 

41-109

1.98

.40

2.92

52.25

42.87

100.42

1,1,96

Magnesian

1599

46F2 

42-132

0.70

.37

.60

54.66

.058

42.73

[99.12]

0,1,97

Calcite

1612

46F, 

42-145

1.65

1.31

4.27

.61

51.48

40.55

[99.87]

0,3,91

Calcite

1625

46F, 

41-166

1.70

5 .41

'21.37

'29.80

 46.72

[100.00 ]

1,1,98

Dolomite

1638

46F, 

41-137

74.4

1.3

20.4

28.8

44.5

[99.4]

2,4,93

Dolomite

1587

46Ft 

41-280

10.5

'47.4

[57.9]

0,0,92

Magnesian

1600

46F, 

42-133

2.56

.36

.69

53.59

.039

42.03

[99.27]

2,1,95

Calcite

1613

46F2 

42-146

2.35

.77

.24

.71

53.86

42.15

[100.08]

1,3,95

Calcite

1626

46F, 

41-168

7.33

 **o

'19.99

'28.24

'44.01

[100.00]

7,1,92

Dolomite

1639

46F, 

41-138

71.9

1.2

20.9

29.6

45.8

[99.4]

0,3,95

Dolomite

'Calculated from reported MgCO, and (or) CaCOs .

'Sample dried at 110°-112I>C; ignition loss 1.000°-1,100°C.

'A composite of samples 1576-1578 contained Na2O =250 ppm, 

K,O = 620 ppm, TiO, = < 30 ppm, S = 180 ppm.

4 A composite of samples 1596-1600 contained Na,O =220 ppm, 

K2O=570 ppm, TiO, = 40 ppm, S=45 ppm.

"R.O,.

*COj, calculated from reported MgCOj and CaCOj.

'includes insoluble.
ANALYSES OF SAMPLES 189

Spectlochemical analyses

InjOi.SnOi.SbiOj.BaO.TeOi.CsjO.LaiOj.CeOj.PrjOj .NdjOi.SmjOj.EujOj.GdjOj, 

PbO.BijOj.ThO^.UOj; sample 1578, AgjO = 0.00045 percent]

TiO, ___ 

MnO ___

CuO ___

SrO _____

ZrO, 

Na,0 ___ 

TiO, ___ 

Ct,0, 

MnO ___

1576

0.014 

.00077 

.027

.0024 

.013

1595

0.16 

.041 

.0005 

.052

1577

0.0084 

.0005 

.021 

.0038 

.0126 

.014

1596

0.01

.021

1578

0.011 

.0005 

.025 

.001 

.0010 

.012

1597

0.0084

.012

1579

0.071 

.014 

.0005 

.045

.0011 

.012 

.002

1598

0.012

.017

1580

0.05 

.029 

.0007 

.033

.0016 

.015

1599

0.011

.014

1581

0.05 

.061 

.0014 

.050

.6021 

.013

1600

0.008

.02

Tb,0,, DyjC

1582

0.05 

.032 

.00067 

.020

.0012 

.018

NiO _ _

CuO _ __

SrO_____

ZrO,____

1583

0.05 

.054 

.0012 

.035

.0020 

.022

1584

0.05 

.022 

.00064 

.017

.0016 

.016

1595

. 0.0019

.020

b,0,.Lu,0,.

1585

0.026 

.0005 

.028

.00077 

.020

1596

0.00088 

.014

HfOj.TatOj

1591

0.20 

.032 

.0005 

.11

.0020 

.021 

.002

1597

0.00051 

.017

.WOj.RejO,

1592

0.13 

.026 

.0005 

.072

.0028 

.025

1598

0.0006 

.014

.Os.Ir.Pt.A

1593

0.075 

.027 

.0005 

.066

.0018 

.027

1599

0.00088 

.014

u.Tlpi.

1594

0.14 

.042 

.0005 

.070

.0019 

.020 

.0051

1600

0.00071 

.013

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate 

Washington Continued 

1575. Stevens County. Cambriart ?), Northport Limestone. SWi sec. 13,

T. 39 N., R. 39 E., about 4 miles south of town of Northport. Norton 

and Ornduff property. Analyst, E. W. Lazell. (Hodge, 1938d, p. 13, 

95, 116. 119-J.21; Mills, 1962, p. 74. j)3.) Limestone, white to 

cream, crystalline, laminated. Tonnage estimated. Index and geologic maps. Use: Pulp and paper industry. 

1576-1585. Stevens County. Northport Limestone. SEi sec. 13, T. 39 N.,

R. 39 E., about 3 miles southwest of Northport. Makynen property, 

formerly Norton Ornduff property. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. ( Mills, 1962, 

p. 12, 13, 93-JJ5, 247, 250. 257, 264, pi. 1.) Tonnage estimated. 

Index and geologic maps. Possible use: Portland cement.

1576. Sample S-12. Limestone, yellow-white, coarse-grained, 

micaceous. Chip sample from outcrop, represents 

lift. Former use: Pulp and paper industry.

1577. Samples-13. Limestone, gray, fine-grained. Chip 

sample from outcrop, represents 54 ft. Former use: 

Pulp and paper industry.

1578. Sample S-14. Limestone, yellow-white, coarse-grained.

Chip sample from outcrop, represents 45 ft. Former

use: Pulp and paper industry. 

1579-1584. Samples S-190 to S-195. Limestone, samples represent

400 ft. 

1585. Samples-196. Limestone. Grab sample from abandoned

quarry.

1586-1595. Stevens County. Northport Limestone. Sec. 13, T. 39 N., R. 39 E., 

about 3 miles southwest of Northport. Index and geologic maps. 

1586-1590. Janm quarry. (Mills, 1962, p. 74, 76, T7.) Limestone,

white to pale-yellow-white, fine- to medium-grained,

massive. Use: Food additive, agricultural, terrazzo

flooring, pulp and paper industry, plaster, roofing,

stucco.

1586. Analyst, A. A. Hammer. Sample 51. ( Shedd, 

1913, p. 154. 155. 245. pi. 21.) Possible 

use: Portland cement [implied]. 1623 - 1639. 

1591-1595. South of Janni quarry. Analyst, under supervision of

Mark Adams; spectrochemical analyst, C. E. Harvey.

Samples S-185 to S-189. (Mills, 1962, p. 12, 13,

74, 76-J78. ^50, 263, 264, pi. 1.) Limestone, gray.

fine- to medium-grained, thin-bedded. Chip sample

from outcrop.

1596-1600. Stevens County. Northport Limestone. SW^SWi sec. 25, T. 39 N.. 

R. 39 E., 5 miles southwest of Northport. Onion Creek deposit, 

Menegas property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Samples S-29 to S-33. (Mills, 

1962, p. 12, 13, 81-83, 247, 258. 264, pi. 1.) Limestone, white, 

medium-grained, moderately well bedded i weathers white to light 

gray; minimum thickness 210 ft. Chip sample from outcrop. Tonnage 

estimated. Index and geologic maps. Possible use: Portland cement, 

mineral filler, chemical, metallurgical, builders' lime, sugar industry, 

pulp and paper industry. 

1601-1622. Stevens County. Northport Limestone. SWjSWj sec. 26, T. 39 N.,

R. 39 E., 6 miles southwest of Northport. Ideal Cement Co. ( Mills, 

1962, p. 74, 96. 100. 101. 102, pis. 1, 4.) Tonnage estimated. 

Index and geologic maps, geologic section. Possible use: Cement.

source of analysis]

W ashington Continued 

1601 - 1609. Diamond-drill hole 4, drilled at inclination of -70°.

Limestone, predominantly gray, fine-grained, bedded; 

total thickness at least 800 ft. [For another analysis 

from same drill hole, see sample 132, group C.]

Depth (ft)

1606. 134-191

1607. 108-134 

64- 96 

1- 64

1608.

1609.

Depth (ft)

1601. 351-413

1602. 309-351

1603. 264-309

1604. 220-264

1605. 191-212 

1610- 1612. Diamond-drill hole 4A, drilled at inclination of +15°.

Limestone, predominantly gray, fine-grained, bedded; 

total thickness at least 800 ft. [For other analyses 

from same drill hole, see samples 133-135, group C; 

samples 430-435, group FI.]

Drill hole interval

1610. 0- 64

1611. 64-151

1612. 151-156

1613. Diamond-drill hole 4A. Limestone, predominantly gray, 

fine-grained, bedded; total thickness at least 800 ft; 

and limestone, white to light-gray, medium- to 

coarse-grained, relatively massive; estimated 750ft 

thick. Drill hole interval 156-214 ft.

1614-1622. Diamond-drill hole 4A. Limestone, white to light-gray, 

medium- to coarse-grained; estimated 750 ft thick.

Drill hole interval Drill hole interval

1614. 241-261 1619.

276-300 1620.

655-687 1621.

688-692 1622.

1615.

1616.

1617.

1618.

710-761 

761-783 

786-860 

860-901

693-708

Stevens County. Northport Limestone. NEi sec. 27, T. 39 N.,

R. 39 E., 2 miles east of town of Marble. ( Deiss, 1955. p. 119-121, 

127. 132, ^33-135, pis. 14, 15.) Index and geologic maps, geologic 

sections, detailed measured section. Use: Source of magnesium 

[ implied].

1623-1629. Analyst, EstherClaffy. Samples36-38, 40-43. Dolomite. 

1630, 1631. Analyst, E. S. Leaver. Samples 1, 2. Unit description:

Dolomite, pale-gray, finely to medium crystalline,

dense, thick-bedded; some irregular beds of black-gray

dolomite mottled light-gray in spots or stringers; 47 ft

thick.

1632. Analyst. E. S. Leaver. Sample 3. Dolomite. 

1633-1635. Analyst, E. S. Leaver. Samples 4-6. Unit description:

Dolomite, gray, finely to medium crystalline; 59 ft

thick. 

1636-1638. Analyst, E. S. Leaver. Samples 7-9. Unit description:

Dolomite, gray; 50 ft thick. 

1639. Analyst, E. S. Leaver. Sample 10. Unit description:

Dolomite, dull-gray, gray, and blue-gray banded,

finely to medium crystalline, thick-bedded or

unbedded; 88 ft thick.

487-187 O - 73 - 13
190 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table Id. Analyses of samples from Washington containing more than 90 percent carbonate (Group Fj), common-rock category Continued

Chemical analyses Continued

W ashington Continued

SiO, _________

R.O, _

MgO _________

CaO _________

Total ___

1640

46F, 

41-139

. __ 0.5

.7

. __ 20.8

. __ 30.3

. __ 46.6

. __ [98.9]

1641

46F, 

41-140

h.3 

.7 

20.8 

30.4 

46.4

[99.6:

1642

46F, 

41-141 "1.4

.5 

21.2 

30.0 

46.3

1 [99.41

1643

46Fj 

41-142

0.6 

.8 

21.4 

30.2 

46.7

1 [99.71

1644

46Fj 

41-143

'2.7 

.4 

21.1 

29.7 

45.7

[99.6]

1645

46F, 

41-144

0.5 

1.0 

21.5 

30.3 

47.0

[100.3]

1646

46F, 

41-145

0.5 

.4 

21.7 

30.4 

47.1

[100.1]

1647

46Fj 

41-146

1.0 

.4 

21.6 

30.1 

46.8

[99.9]

1648

46Fj 

41-147

'1.4 

.4 

21.5 

30.1 

46.7

[100.1]

1649

46Fj 

41-148

0.6 

.3 

21.8 

30.1 

46.9

[99.7]

1650

46Fj 

41-149

'3.0 

.6 

21.1 

29.5 

45.5

[99.7]

1651

46F, 

41-150

'4.5 

.6 

20.9 

28.8 

44.8

[99.6]

1652

46Fj 

41-151

1.0 

.5 

21.6 

30.0 

46.6

[99.7]

Class___________ 0,1,98 0,2.97 1.1,97 0,1,98 

CaO/MgO_______ Dolomite Dolomite Dolomite Dolomite

2,1,96 0,1,98 0,1,99 

Dolomite Dolomite Dolomite Dolomite Dolomite Dolomite Dolomite Dolomite Dolomite

1653

SiO, _____ 

A1.0, 

Fe,0, 

MgO 

CaO _____ 

Ignition loss

46F, 46F. 

41-152 41-153

1654 _ 1655 ~~~46F, 1656

46F, 

41-155 41-156

Washington Continued

TT J?!l 7 ?5^_ Z " 

~4~6F, ~~~46F, ~46Fj

41-157 41-158 41-159

_ 16.60__ __1?61 - '__ *66^_ 4&Ft~~"~ ~~46F, ~ ~ ~46F,~

41-160 41-161 41-162

1665

____________ ____ __.

41-163 41-268 42-157 "l.7

} t - 7

21.5

29.9

46.4

0.7

'.4

30.0

46.0

0.6

'.5

30.3

46.2

\.1

!e

21.5

29.7

45.7

i2.6

'.6

29.6

45.8

0.8

'.3

21.3

30.3

46.9

0.6

'.5

21.4

30.3

46.9

0.7

'.3

21.5

30.3

46.6

0.9

'.3

21.5

30.4

46.5

1.0

'.4

21.5

30.2

46.0

\.e

'.5

21.3

29.8

46.0

0.30

'.10

*55.60

4 43.64

0.65

T .55 

I- .06

.40

55.36

43.14

Total ______ [100.2] [98.7] [99.2] [98.7]

Class___________ 1,2,97 0,1,96 0,1,97 0,2,95

CaO/MgO_______ Dolomite Dolomite Dolomite Dolomite

[99.5] [99.6] [99.7]

2.2,96 0,1.98 0,1.98

Dolomite Dolomite Dolomite

[99.4] [99.6] [99.1] [99.2] [99.64] [100.16]

0.1.98 0.1.97 0.1,96 1,1.96 0.0.99 0,1,98

Dolomite Dolomite Dolomite Dolomite Calcite Calcite

1666 1667 1668 1669

Washington Continued 

1670 1671 1672 1677 1678

46F, 46F, 46F, 46F, 46F, 46F, 46F, 

42-158 42-159 42-160 42-161 42-163 42-164 42-165

1673 1674 1675 JL676________________

46F, ~" 46F, ~ ~ ~46F, 46F, 46F, 46F,

42-166 42-167 42-188 42-169 42-170 42-171

SiO, ____ 

Al-0, 

Fe.0, 

MgO _____ 

CaO _____ 

Ignition loss

0.84

.72

.45

11.20

42.11

44.73

1.35

.54

.16

.76

54.29

42.95

1.64

1.44

.49

11.43

42.00

43.90

1.32

.57

.12

.29

55.19

42.80

2.32

.71

.10

1.40

52.62

42.48

2.40

1.03

.04

2.09

51.35

42.39

2.16

.58

.08

.57

54.31

42.59

2.28

.69

.16

.67

53.18

42.57

2.55

.54

.10

.57

53.39

42.34

0.28

.63

.08

.56

55.27

43.43

0.28

.19

.08

.85

54.84

43.52

1.64

.39

.14

.79

54.82

42.73

6.60

.16

.12

6.59

45.41

41.49

Total_______ [100.05] [100.05] [100.90] [100.29] [99.63] [99.30] [100.29] [99.55] [99.49] [100.25] [99.76] [100.51] [100.37]

Class__. 

CaO/MgO.

0,2,97 0,2,97 0,3,95 0,2,97 1,2,96 1,3,95 1,2,96 1,2,96 i.2,96 0,0,5 0,1,99 1,2,97 6,1,92

Calcareous _ Calcareous _ _ , Magnesian _ , .

, , . Calcite . Calcite Calcite B, . Calcite dolomite dolomite calcite Calcite Calcite Calcite Calcite Calcite Magnesian 

calcite

1679 1680 1681

W ashington Con tinned 

1683 1684 1685 __________ _______ _ _1682 ___

46F, 46F, 46Fj 46F.~~~~~46F.~~~ 46F~, 46F,~

42-172 42-173 42-174 41-93 41-264 42-175 42-176

_16_86__ _ ~687___ " 6§8__ 1689 1690

~6Fi~~ 46F, 46F,~ ~ ~~~~ ~46F_ ~~"~ 46F,

42-177 42-178 42-263 42-264

1691

46Ft 

42-265 42-266

SiO, _ _________

Al,0, _________

Fe,0, _________

MgO __________

CaO __________

P,05 __________

Ignition loss _____

3,

2,

51.

42.

.33

.28

.08

.34

.86

.17

2

1

53

42

.64

.22

.06

.52

.34

.39

8.12

.77

.24

3.34

47.83

39.72

1,

'53,

*43

.47

.1

.3

1.50

*52.9

4 43.2

1.37

| '.68

.94

53.48

.034

*43.00

2.27

"1.04

.42

53.48

.025

*42.49

2.68

*1.17

.59

53.18

.032

'42.21

6.89

! 2.25 I

1.32 

49.13 

.057

'40.11 .

8 0.90 _____ ______

s.19 _____ _____

*.18 _____ _____

.54 0.54 1.40 

55.18 54.84 54.12 

*.016 _____ ______

0.77 

54.90

Total ______ [100.06] [100.17] [100.02] [97.9] [97.6] [99.50] [99.72]

Class 3,1,95 2.1.96 6,3.88 0,0,98 0,0.98 0,2,97 1.3,96

CaO/MgO _______ Magnesian Magnesian c

' B calcite calcite

[99.86] [99.76] [57.01] [55.38] [55.52] [55.67]

1,3,95 3.7.89 0,1,97 0,1,98 0,1,97 0,1,97

Calcite Calcite Calcite Calcite Calcite Calcite

'includes insoluble.

'R.O..

'Calculated from reported CaCOj.

*CO_. calculated from repeated MgO and (or) CaCO,.

5Equal weighted composite of samples 1688-1693.

'sample dried at 1100 -112°C; ignition loss l,ooo°-i, ]00°C.
ANALYSES OF SAMPLES 191

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: LijO.BeO.BtOj.KjO.ScjOj.VjOj.NiO.CoO.ZnO.Ga^j.GeOj.AsjOj.YjOj.ZrOj.NbjOj.MoOj.AgjO.Ru.Rh. 

Pd.CdO,In^.SnC>,.Sb1Oi .BaO.TeC>fc.Cs»O.La,C>,.CeC>fc,ft,C>,.Nd^^ 

Tl,O,.PfaO.Bi,O,,ThO,,UO,; sample 1687. PbO = 0.002 percent]

Na,0 ____________

TiO, ___________

Cr,0, ___________

1684

_____ __ 0.05

________ .014

1685

.02

.0005

1686

.041

.0005

1687

0.35

.052

.001

CuO _______________

SrQ _______ _ __ 

1684

____ _______ 0.10

_____ .0013

.__ ________ .015

1685

0.075

.0019

.014

1686

0.088

.0021

.027

1687

0.16

.0030

.025

DESCRIPTIVE NOTES

[ Underscored page numbers in reference indicate source of analysis] 

Washington Continued

1640-1663. Stevens County. Cambriart?), Northport Limestone. NEi sec. 27, 

T. 39 N., R. 39 E., 2 miles east of town of Marble. Analyst, 

E. S. Leaver. ( Deiss, 1955, p. 119-121, 127,233-135, pis. 14, 15.) 

Index and geologic maps, geologic sections, detailed measured section. 

Use: Source of magnesium.

1640,1641. Samples 11, 12. Unit description: Dolomite, dull-gray, 

gray, and blue-gray banded, finely to medium crystalline, thick-bedded or unbedded; 88 ft thick.

1642-1644. Samples 13-15. Unit description: Dolomite, dull-gray, 

medium-crystalline to sugary, thick-bedded; alternating bands of black-gray dolomite mottled with 

small light-gray spots and streaks; 64 ft thick.

1645-1647. Samples 16-18. Unit description: Same as samples 

1642-1644; 70 ft thick.

1648, 1649. Samples 19, 20. Unit description: Same as samples 

1640. 1641; contains black beds; 28 ft thick.

1650-1652. Samples 21-23. Unit description: Same as samples 

1642-1644; 62 ft thick.

1653. Sample 24. Unit description: Dolomite, light-gray,

fine to microcrystalline, thick-bedded; some irregular 

masses of black dolomite; 31 ft thick.

1654, 1655. Samples 25, 27. Unit description: Dolomite, pale- and 

light-gray, some beds dark-gray; finely crystalline, 

slightly vitreous on fresh fracture; 18 ft thick.

1656-1658. Samples 28-30. Unit description: Dolomite, faintblue to dull-light-gray, finely to medium crystalline, 

unbedded or thick-bedded; 49 ft thick.

1659. Sample 31. Unit description: Same as samples 1656- 

1658; 15 ft thick.

1660,1661. Samples 32, 33. Unit description: Dolomite, light-gray; 

contains irregular black-gray masses; 16 ft thick.

1662,1663. Samples 34, 35. Unit description: Dolomite, light-and 

dark-gray; contains black irregular masses mottled with 

light gray; 32 ft thick.

1662. Dolomite, black, mottled.

1663. Dolomite, light-gray.

1664. Stevens County. Northport Limestone ( Mills, 1962, p. 74). Sees. 28, 

33, T. 39 N., R. 39 E., Marble Mountain. Lazy S Ranch. Analyst, 

H. M. Brewer. ( Hodge, 1944, p. jjl, 52, pi. 4.) Limestone. Tonnage estimated. Index map.

1665-1676. Stevens County. Northport Limestone. NEi NWi sec. 35, T. 39 N., 

R. 39 E., 6 miles southwest of town of Northport. Ideal Cement Co. 

( Mills, 1962, p. 74, 96, 97, j)9. 100, 102. pis. 1, 4.) Diamonddrill hole 1; 828 ft drilled at an inclination of -45°. Tonnage estimated. Index and geologic maps, geologic section. [For other analyses from same drill hole, see sample 103, group E; samples 438, 439, 

group FI.]

1665, 1666. Unit description: Limestone, predominantly gray, finegrained, bedded; interbeds of dark-gray to black dolomite; depth 760-820 ft. Possible use: None, rock 

impure.

1665. Limestone, depth 774-787 ft.

1666. Dolomite, depth 760-764 ft.

Washington Continned

1667-1671. Unit description: Limestone, white to light-gray, 

medium- to coarse-grained, relatively massive; 

interbeds of dolomitic limestone; depth 292-760 ft. 

Possible use: Cement.

1667. Limestone, depth 655-760 ft.

1668. Dolomitic limestone, depth 642-655 ft.

1669. Limestone, depth 561-642 ft.

1670. Limestone, depth 391-490 ft.

1671. Limestone, depth 292-391 ft.

1672 -1676. Unit description: Same as samples 1667-1671; depth 

0-292 ft. Possible use: Mineral filler, pulp and 

paper industry, builders' lime.

1672.

1673.

1674.

1675.

1676.

Depth (ft)

249-292

117-249

69- 93.5

10- 61

0- 6.5

1677-1681. County, formation, locality [except quarter section] , reference, maps, 

and section as in samples 1665-1676. NWi NWi sec. 35. Diamond - 

drill hole 11; 346 ft drilled at an inclination of -45°. Tonnage estimated. [For another analysis from same drill hole, see sample 440, 

group F!.]

1677. Unit description: Limestone, white to light- gray,

medium- to coarse-grained, relatively massive; estimated 750 ft thick. Limestone, depth 280-346 ft. 

Possible use: Cement.

1678 -1671. Unit description: Limestone, dark-gray to black, some 

gray beds, medium- to coarse-grained, bedded; 

0-280 ft thick. Use: None, rock impure.

1682-1687. Stevens County. Northport Limestone. Sec. 7, T. 39 N., R. 40 E., 

about 2 miles southwest of Northport. Limestone, white to creamwhite to light-gray, medium-grained, bedded: about 40 ft thick. 

Index and geologic maps. Possible use [except sample 1687]: Portland 

cement, mineral filler, builders'lime.

1682, 1683. ( Mills, 1962, p. 78. J79-81.)

1684-1687. Janni property. Analyst, under supervision of

Mark Adams; spectrochemical analyst, C. E. Harvey.

Samples S -180 to S-183. (Mills, 1962, p. 12, 13, 78-

81,^50, 263, 264, pi. 1.) Tonnage estimated.

1687. Use: Probably none, rock impure.

1688-1691. Stevens County. Northport Limestone. Wj sec. 8, T. 39 N., R. 40 E., 

about 1 mile south of Northport. John Sherve property. Samples 1-4. 

( Mills, 1962, p. 85-J37, 88, 89. pi. 1.) Limestone, light-gray to 

gray, medium-grained, moderately well bedded; about 300 ft exposed. 

Tonnage estimated. Index and geologic maps. Possible use: Chemical, metallurgical, calcium carbide manufacture, sugar industry, 

pulp and paper industry.
192 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing mote than 90 percent carbonate (Group F,), common-rock category Continued

Chemical analyses Continued

SiO, _________

RjO, _________

MgO _________

CaO _________

P205 _________

Ignition loss __ _

Total ____

Class _________

CaO/MgO ______

SiO, _________

R20, _________

MgO _________

CaO _________

P,05 _________

Ignition loss'__ _

Total ____

CaO/MgO ______

SiO, __: _______

Al,0, _________

FejO, _________

MgO _________

CaO _________

Pi05 

Total ___

Class _________

CaO/MgO _____

SiO, _________

RtO, .

MgO _________

CaO _________

P205 .

Ignition loss 1 ___

Total ___

Class _________

CaO/MgO ______

1692

46 ft 

42-267

__ 0.54

__ 55.08

__ [55.62]

__ 0,1.98

__ Calcite

1705

46F, 

42-190

__ 0.66

__ .19

__ .51

__ 55.35

__ .009

__ 43.07

__ [99.79]

. __ 0,1.98

. __ Calcite

1718

46F2

42-203

. __ 1.15

; - 76

. __ 2.05

, __ 52.60

, __ .008

, __ *43.25

. __ [99.82]

. __ 0.2,97

Magnesian

calcite

1693

46F, 

42-268

0.64 

54.24

[54.88]

0,1.98 

Calcite

1706

46F, 

42-191

0.25 

.19 

.31 

55.43 

.005 

43.30

[99.48]

0,0,98 

Calcite

1719

46F, 

42-204

1.67 

4 .98

2.00 

52.32 

.007 

*42.99

[99.97]

0,3,96 '

Magnesian 

calcite

1731

46F, 

42-213

1.63 

.23 

.72 

54.13 

.003 

43.01

[ 99.72] 

1.1,97 

Calcite

1694

46Fj 

42-179

0.39 

.12 

.27 

55.35 

.003 

43.15

[99.28]

0,0,98 

Calcite

1707

46Ft 

42-192

1.28 

.15 

.35 

54.90 

.010 

42.65

[99.34]

1,0,97 

Calcite

1720

46Ft 

42-205

0.90 

4 .32

2.48 

52.31 

.035 

'43.18

[99.22]

0,1,97

Magnesian 

calcite

1732

46Ft 

42-214

6.04 

.69 

4.82 

46.80 

.002 

41.68

1695

46Ft 

42-180

0.13 

.16 

.26 

55.35 

.003 

43.18

[99.08]

0.0,98 

Calcite

1708

46F, 

42-193

0.71 

.31 

1.05 

54.23 

.010 

42.76

[99.07]

0,1,97 

Calcite

1721

46F, 

42-206

1.44 

4 .31

6.22 

47.67 

.043 

*43.63

[99.31]

1,1,97

Magnesian 

calcite

1733

46F2 

42-215

6.44

.21 

2.38 

49.47 

.003 

41.35

Washington Continued

1696 1697 1698

46Fj 46F, 46F, 

42-181 42-182 42-183

0.35 0.69 1.29 

.17 .14 .00 

.20 .34 .28 

55.28 54.83 54.90 

.006 .006 .012 

43.29 43.34 42.96

[99.30] [99.35] [99.44]

0,0.98 0,0,98 1.0,98 

Calcite Calcite Calcite

Washington Continued

1709 1710 1711

46F, 46F, 46F, 

42-194 42-195 42-200

1.17 0.22 2.51 

.00 .20 1.29 

.26 .68 .79 

54.90 54.90 52.85 

.003 .003 .007 

43.12 43.03 42.72

[99.45] [99.03] *[100.17]

1,0,98 0,0,98 0,4,96 

Calcite Calcite Calcite

W ashington Continued

1722 1723 1724

46Fj 46F, 46F, 

42-207 41-270 42-208

0.69 0.3 0.80

<.42 ( TraCC ) '.41 ^ Trace J

2.47 5 .70 .53 

52.42 554.85 55.20 

.056 _____ .060

*43.40 *43.82 *43.66

[99.46] [99.7] T [100.66]

0,1,97 0,0,99 0,1,99

Magnesian _ . _ , . 6 Calcite Calcite calcite

Washington Continued

1734 1735 1736

46F, 46F, 46Ft 

42-216 42-217 42-218

2.92 2.40 2.77 

1.15 1.17 .94 

2.83 .79 1.42 

50.25 53.02 52.14 

.020 .016 .027 

42.63 42.68 42.33

[100.03] [99.85] *[99.80]'[100.08] s[99.63]

5.2.93 6,1,93 1,3,95 0,3,96 1.3,95

Magnesian Magnesian Magnesian _ , . _ , . 6, . e, . e, . Calcite Calcite calcite calcite calcite

1699

46F, 

42-184

0.21 

.10 

.42 

55.32 

.006 

43.71

*[99.77]

0,0.99 

Calcite

1712

46Fj 

42-199

3.87 

1.85 

.95 

51.55 

.008 

41.87

'[100.10]

1,5,94 

Calcite

1725

46F, 

42-209

0.60 

4.45

1.02 

54.84 

.040 

*43.25

7 [100. 20] 

0,1,98 

Calcite

1737

46F, 

42-219

4.55 

1.66 

.98 

51.44 

.022 

41.31

[99.96] 

2,5.93 

Calcite

1700

46F, 

42-185

0.37 

.14 

.32 

55.13 

.007 

43.68

*[99.65]

0.0,99 

Calcite

1713

46F, 

42-198

2.82 

1.27 

.88 

52.80 

.011 

42.43

'[100.21]

1,4,95 

Calcite

1726

46F, 

42-210

1.24 

4 .30

3.98 

50.12 

.040 

*43.78

7 [99.46]

1.1.98

Magnesian 

calcite

1738

46F,

.42-220

3.19 

1.38 

.64 

52.59 

.011 

41.97

[99.78] 

1,4,94 

Calcite

1701

46F, 

42-186

0.25 

.19 

.56 

55.08 

.003 

43.82

*[99.90]

0,0,99 

Calcite

1714

46F, 

42-197

3.26 

1.42 

1.02 

51.67 

.014 

41.72

'[99.10]

1,4,94 

Calcite

1727

46Fj 

42-211

1.50 

<.64

.75 

53.81 

.010 

'43.16

T [99.87] 

0,2,97 

Calcite

1739

46Ft 

42-221

3.27 

1.27 

1.67 

51.39 

.009 

42.17

[99.78] 

1.4,95 

Calcite

1702

46F, 

42-187

1.54 

.21 

.49 

54.53 

.004 

43.21

*[99.98]

1.1.98 

Calcite

1715

46Fj 

42-196

1.96 

.72 

1.17 

52.92 

.009 

42.94

1703

46F, 

42-188

0.14 

.20 

.35 

55.35 

.004 

43.93

[99.97]

0,0.100 

Calcite

1716

46F, 

42-201

0.38 

.20 

.50 

55.13 

.007 

43.80

'[99.72] [100.02]

1.2,97 0,1.99 

Calcite Calcite

1728

46F, 

41-208

5.26 

1.46

14.90 

32.56

43.96

98.14

3.6,89

Calcareous 

dolomite

1740

46F, 

42-222

2.61 

1.08 

1.68 

51.88 

.019 

42.55

1729

46F, 

41-209

3.15 

.41

20.11 

31.55

43.91

99.13 

2,1,92 

Dolomite

1741

46F, 

42-223

4.60 

1.46 

1.20 

49.00 

.032 

41.83

[99.82] [98.12] 

1,3.95 2.6,90 

Calcite Calcite

1704

46Fj 

42-189

0.19 

.10 

.17 

55.47 

.007 

43.73

[99.67]

0.0,99 

Calcite

1717

46F, 

42-202

0.24 

.22 

.45 

55.08 

.005 

43.85

[99.84]

0,1,99 

Calcite

1730

46Fj 

42-212

2.52 

4 .28

.63 

53.08 

.001 

'43.16

[99.67] 

2,2,96 

Calcite

1742

46F,

42-224

4.40 

1.09 

1.40 

48.50 

.043 

42.06

[97.49] 

3,5.90 

Calcite

"Sample dried at 110e-n2eC! ignition loss 1.000°-1.100°C.

*A composite of samples 1699-1702 contained Na,O = 175 ppm, 

K»O = 360 ppm, TiO, = <30 ppm. S= 43 ppm.

*A composite of samples 1711-1715 contained Na,O =220 ppm, 

K»O = 630 ppm, TiO, = 170 ppm, S = 30 ppm.

'Calculated from reported MgCO, and (or) CaCO,.

*CO,, calculated from reported MgCOj and CaCOj. 

7 A composite of samples 1724-1727 contained Na,O=250 ppm, 

K,O = 570 ppm, TiO, = 70 ppm, S = 40 ppm.

*A composite of samples 1734-1736 contained Na,O = 220 ppm, 

KjO = 610 ppm, TiO, = 315 ppm, S = 30 ppm.
ANALYSES OF SAMPLES 193

Spectrochemical analyses

C The metallic elements not detected in the spectrochemical analysis: LitO.BeO.BjOs.NajO.KtO.ScjOj.Vt 

Ru.Rh,Pd,CdO,Ii^O8 .SnC>2,Sl)_O8 ,BaO,TeC>2.Cs_O,La_O8 ,CeC>2,Pr_O8 .Nd_^^

Ir,Pt,Au,Tl_O8 .PbO,Bi_O8 ,ThOj,UOI; sample 1712, Ag_O =0.0029 percent; sample 1730, Ag_O = 0.00094 percent; sample 1733, NiO = 0.001 percent; sample 1737, 

Na2O = 0.05 percent. V_O5 = 0.003 percent. NiO = 0.001 percent; sample 1738, V_O5 = 0.003 percent; sample 1739, NiO = 0.001 percent, V_O5 = 0.003 percent; sample 1740, 

Na.O = 0.05 percent, Ag_O = 0.0002 percent]

TiO, ___

Cr.0, 

MnO ___ 

CuO ___ 

SrO ___

TiO, ___ 

Cr.0, 

MnO ___ 

CuO ___ 

SrO ___

TiO, 

Cr.0, 

MnO____ 

CuO ___ 

SrO ___

TiO, __

Cr.0, 

1694

0.004

.035 

.0012 

.011

1708

0.011

.044 

.0012 

.010

1722

0.006

.052 

.0006 

.013

1739

0.11

.0017

1695

0.002

.021 

.00088 

.0092

1709

0.0048

.040 

.0014 

.011

1724

0.002

.0094 

.00082 

.015

1740

0.072

.0028

1696

0.010

.015 

.0010 

.010

1710

0.006

.032 

.0021 

.010

1725

0.002

.00093

.014 

.00082 

.011

1741

0.022

.0018

1697

0.0056

.015 

.0010 

.011

1711

0.010 

.00067

.025 

.0024 

.014

1726

0.002

.0015

.025 

.0013 

.012

1742

0.014

.00074

1698

0.0048

.011 

.00088 

.012

1712

0.032 

.0014

.04 

.0016 

.013

1727

0.018

.0011

.009 

.0011 

.019

MnO _____

CuO _____

1699

0.013 

.0011 

.014

1713

0.017 

.0008

.025 

.0016 

.012

1730

0.053 

.00088 

.017

1739

0.40

.0015

1700

0.016 

.0011 

.013

1714

0.048

.033 

.0014 

.011

1731

0.056 

.00083 

.015

1740

0.13

.0015

1701

0.027 

.0017 

.015

1715

0.010 

.0005

.015 

.0010 

.02

1732

0.0048

.079 

.0029 

.021

1741

0.22

.0014

1702

0.026 

.0014 

.015

1716

0.004

.016 

.00066 

.013

1733

0.04 

.0015 

.021

1742

0.35

.0017

1703

0.02 

.0019 

.015

1717

0.002

.019 

.0012 

.012

1734

0.079

.16 

.0019 

.029

SrO ______

1704

0.014 

.0027 

.015

1718

0.024

.05 

.00077 

.013

1735

0.09

.21 

.0017 

.032

1739

0.038

1705

0.002

.013 

.0014 

.011

1719

0.027

.054 

.0016 

.016

1736

0.13

.20 

.00088 

.020

1740

1706

0.019 

.0018 

.013

1720

0.002

.030 

.0005 

.009

1737

0.14

.23 

.0012 

.034

1741

1707

0.006

.013 

.0016 

.0096

1721

0.006

.055 

.0007 

.0097

1738

0.094

.13

.0015 

.029

1742

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

1692-1698. Stevens County. Cambriar,?). Northport Limestone. Wi sec. 8,

T. 39 N., R. 40 E., about 1 mile south of town of Northport. John 

Sherve property. (Mills, 1962, p. 12, 13, 85-87, 88, 89, 250, 263, 

264, pi. 1.) Limestone, light-gray, medium-grained, moderately 

well bedded; about 300 ft exposed. Tonnage estimated. Index and 

geologic maps. Possible use: Chemical, metallurgical, calcium carbide manufacture, sugar industry, pulp and paper industry. 

1694- 1698. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Samples S-175 to S-179. 

Chip sample from outcrop.

1699-1710. Stevens County. Northport Limestone. S? sec. 8, T. 39 N.. R. 40 E., 

1 mile south of Northport. Ester Sherve property. Analyst, under 

supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Samples S-150 to S-155, S-169 to S-174. ( Mills. 1962, p. 12, 13, 

86. 88, J59, 249, 250. 262-264, pi. 1.) Limestone, light-gray to gray, 

fine- to medium-grained, very thin bedded. Chip sample from outcrop. Tonnage estimated. Index and geologic maps. Possible use: 

Chemical, metallurgical, calcium carbide manufacture, sugar industry, 

pulp and paper industry.

1711- 1715. County, formation, analysts, and maps as in samples 1699-1710. 

SEiNWi sec. 18, T. 39 N., R. 40 E., southwest of Northport. 

Boderius property. Samples S-15 to S-19. (Mills, 1962, p. 12, 13, 

90, 92, 247. 257, 258, 264, pi. 1.) Chip sample from outcrop. 

Index and geologic maps. Possible use: Cement. 

1711-1714. Limestone, pale-yellow-white, medium-grained,

slightly micaceous; 225 ft thick; samples represent 47 ft. 

1715. Limestone, light-blue-gray, medium-grained; represents

60ft. 

1716- 1719. County, formation, analysts, maps, and use as in samples 1699-1710.

Sec. 18, T. 39 N., R. 40 E., 2 miles southwest of Northport. Rainey 

property. Samples S-156 to S-159. (Mills, 1962, p. 12, 13, 89-jtt, 

250, 262, 264, pi. 1.) Chip sample from outcrop. Tonnage estimated. 

1716, 1717. Limestone, white to very light gray, medium-grained;

moderately well bedded; 80 ft thick.

1718, 1719. Limestone, white, fine-grained; weathers cream white; 

moderately well bedded.

1718. 50 ft thick.

1719. 80 ft thick.

1720-1722. Stevens County. Northport Limestone. Sec. 33, T. 40 N., R. 40 E., 

0.9 mile east of Northport. Evans property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. 

Samples S-20 to S-22. (Mills, 1962, p. 12, 13, 83-85, 247. 258, 

264, pi. 1.) Limestone, light-gray, medium-grained, thin-bedded; 

weathers gray; few interbeds of dolomite; about 125 ft thick; overburden. 

Chip sample from outcrop. Index and geologic maps. Former use: 

Flux. Possible use: Probably none.

Washington Continued

1723. County, formation, locality, and use as in samples 1720-1722. ( Hodge, 

1944, p. j>3, pi. 4.) Limestone, 400 ft face. Tonnage estimated. 

Index map.

1724-1726. Stevens County. Mississippian and (or) Pennsylvania!!. SW? sec. 1, 

T. 30 N., R. 40 E., about 1 mile southwest of lumpoff Joe Lake. 

Brassfield property. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Samples S-35 to S-37. (Mills, 

1962, p. 12. 13. 157-^60, 247. 258. 264, pi. 1.) Limestone, gray. 

medium-grained, massive. Chip sample from outcrop. Tonnage 

estimated. Index and geologic maps. Possible use [ except sample 

1726]: Portland cement, mineral filler, builders' lime, sugar industry, 

pulp and paper industry. 

1727. County, age, analysts, and maps as in samples 1724-1726. SWi

sec. 36, T. 31 N., R. 40 E., 1/3 mile west of Jumpoff Joe Lake. 

Abandoned quarry. Sample S-34. (Mills, 1962, p. 12, 13, 158, 160- 

162, 247. 258, 264, pi. 1.) Limestone, light-gray, very fine grained, 

massive. Chip sample from outcrop. Possible use: Portland cement, 

mineral filler, pulp and paper industry.

1728,1729. Stevens County. Mississippian and( or) Pennsylvanian. T. 32 N., 

R. 41 E., east of town of Chewelah. Analyst, A. A. Hammer. 

Samples 67, 68. (Shedd, 1913, p. 128.229, 246, pi. 21; Mills. 

1962, p. 163, 164.) Limestone, fine-grained. Mineralogy, thinsection description. Index map. Use: None.

1728. Sec. 5. [Dolomite] white.

1729. Sec. 32. Limestone, dark; at least 200 ft thick.

1730-1733. Stevens County. Permian. Sec. 3, T. 34 N., R. 37 E. Heidegger Hill 

deposit. Analyst, under supervision of Mark Adams; spectrochemical 

analyst, C. E. Harvey. Samples S-124 to S-126, S-129. (Mills, 

1962, p. 12, 13, 147, 149, 150. 151, 249. 261, 264, pis. 1, 5.) 

Limestone, light-gray to gray, fine- to medium-grained, massive; 

contains streaks of siliceous and dolomitic limestoue. Chip sample 

from outcrop. Index and geologic maps. Possible use: None, rock 

impure.

1734- 1740. County, age, analysts, maps, and use as iu samples 1730-1733. Sec. 33, 

T. 35 N., R. 37 E., 10.5 miles south of town of Kettle Falls. Splitoff 

deposit. ( Mills. 1962, p. 12,13,147-^49,248,249,259-261,264,pls. 1, 

5.) Limestone, gray to dark-gray, fine-grained, rather massive, 

slightly silicified. Chip sample from outcrop. Tonnage estimated. 

1734-1739. SWiNEi sec. 33. Samples S - 76 to S-78, S-121 to S-123. 

1740. Sec. 33. Samples-71.

1741, 1742. County, age, analysts, maps, and use as in samples 1730-1733. SEi

sec. 17, T. 36 N., R. 38 E.. 0.25 mile north of Kettle Falls. Hansou 

property. Samples S-l, S-3. (Mills, 1962, p. 12, 13, 135, 138, 

142, 143, 247. 257, 264, pi. 1.) Limestone, gray, medium-grained, 

massive, fossiliferous; contains stringers and blebs of silicified and 

dolomitic limestone. Chip sample from outcrop.
194 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F,), common-rock category Continued

Chemical analyses Continued

Washington Continued

1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755

46F, 46F, 46F, 46F, 46F, 46F, 46F, 46Fj 46Fj 46F, 46F, 46Fj 46F, 

41-105 41-108 41-107 41-106 42-225 42-226 42-227 42-228 42-229 42-230 42-231 42-232 42-233

SiO, _________

FLO.

MgQ. __________

CaO ___________

P.O.

Ignition loss' _____

'3.4 '5. 3 '4.8 1 4.Z 2.97

*.4 *.3 *.5 *.5 .30

__ _____ _____ _____ _____ .26

52.5 50.9 51.8 51.3 53.72

_ __ __ _____ _____ _____ .010

__ _____ _____ _____ _____ 42.36

2

53 

42

.76 

.25 

.27 

.86 

.016 

.64

0.60 

.27 

.22 

55.35 

.036 

43.53

0

55 

43

.42 

.27 

.38 

.26 

.021 

.46

0.36 

.29 

.28 

55.35 

.013 

43.69

1.71 

.24 

.36 

54.30 

.012 

43.02

1.34 

.29 

.49 

54.42 

.043 

43.08

0.35 

.25 

.35 

55.44 

.026 

43.57

1.16 

.15 

.33 

54.80 

.013 

43.24

Total ______ [56.3] [56.5] [57.1] [56.0] [99.62] [99.80] 4[100.01] 4[99.81] 4[99.98] 4[99.64] 4[99.66] [99.99] [99.69]

Class__. 

CaO/MgO.

3,1,94 

Calcite

5,1,91 

Calcite

4,1,92 

Calcite

4.1,92 

Calcite

2,1,96 2,1,97 

Calcite Calcite

0,1,99 

Calcite

0,1,99 

Calcite

0,1,99 

Calcite

1,1.98 1.1,98 

Calcite Calcite

0,1,99 

Calcite

1.0,98 

Calcite

Washington Continued

1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768

SiO, _ _.

R.O.

MgO. __________

CaO ___________

P.O.

Total ____

46F, ' 

42-234

1.17

.15

.31

54.90

.015

43.20

.__ [99.74]

16F, 4i 

42-235

2.79

.29

.21

54.98

.019

42.12

[100.41]

6F, 4 

42-236

1.10

.42

.27

54.98

.029

43.08

[99.88]

6F, 4f 

42-237

0.32

.16

.23

55.37

.028

43.39

[99.50]

fF, 4 

42-238

0.63

.22

.29

55.27

.028

43.15

[99.59]

WF, 

42-239

1.12

.56

.38

54.50

.030

43.00

'[99.59]

46Fi 

42-240

1.47

.54

.39

54.53

.050

43.19

'[100.17]

46Fj < 

42-241

1.40

.49

.35

54.70

.020

42.78

'[99.74]

16F, '. 

42-242

1.50

.55

.38

54.34

.020

42.63

'[99.42]

16F, 

42-243

1.73

.56

.29

54.63

.040

42.74

'[99.99]

46F, 

42-244

1.80

.60

.30

54.61

.030

42.56

'[99.90]

46F, 

42-245

1.18

.34

.24

54.41

.023

43.51

 [99.70]

46F| 

42-246

1.59

.47

.28

53.93

.034

43.26

'[99.56]

Class _______

CaO/MgO__ 

. __ 1.0.98

. __ Calcite

2,1,96

Calcite

0.1,98

Calcite

0,0,98

Calcite

0,1.98

Calcite

0.2,97

Calcite

1.2,98

Calcite

1,1.97

Calcite

1,2,96

Calcite

1.2,97

Calcite

1.2.96

Calcite

1,1,98

Calcite

1.2.97

Calcite

Washington Continued

1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781

SiO, ______ .

Fe,0, .

MgQ. .

CaO _______ .

H,0 .

Ignition loss _ _.

Total __ .

46F, 

42-247

___ 2.31

' J 7 .49

___ .24

___ 54.00

___ .027

.___ '43.02

.___ '[100.09]

46F, 4 

42-248

2.09

T .37

.23

54.24

J 43. 18

'[100.14]

«F, 4i 

42-249

0.76

T .19

.25

55.12

.012

'43.64

[99.97]

6F, * 

42-250

1.22

T .30

.39

54.90

'43.06

[99.88]

SF, 4 

42-251

0.49

7 .27

.25

55.34

.019

'43.28

[99.65]

6F, 4 

42-252

0.79

7 .18

.23

55.16

.017

'43.16

[99.54]

16F, 4( 

42-253

1.05

7 .22

.26

55.05

.017

'42.98

[99.58]

5F,

42-254

1.58

7 .15

.31

54.77

.022

'42.75

[99.58]

16F, ' 

42-255

1.37

7 .28

.24

54.86

.025

'43.28

[100.06]

16F, 

42-256

0.80

7 .21 \

.19

55.21

.020

*43.66

[100.09]

46F, 

41-230

0.67

f None

L None

.21

55.16

None

"43.77

100.01

46F, 

41-240

3.49

None

.24

1.11

51.54

'.16

"42.46

U99.00

46F, 

41-247

0.13

.54

54.95

'Trace

"44.22

99.84

Class___ 

CaO/MgO.

1.2.97 

Calcite

1.1.97 

Calcite

0.1.99 

Calcite

1.1.98 

Calcite

0.1.98 

Calcite

0.1.98 

Calcite

1.1,98 

Calcite

1.0,97 

Calcite

1.1,98 

Calcite

0,1,99 

Calcite

1.0.99 

Calcite

3.1.95 0.0,100 

Calcite Calcite

Washington Continued

SiO, _________

Fe,O,

MgQ. 

CaO __ ___.

Class _________

Can/Mad

1782

46F, 

41-103

. __ 0.96

' \ .20

.36

.___ 55.10

. __ 43.28

. __ 99.90

. __ 1.1,98

1783

46F, 

41-95

6.00

1.70

"19.12

"29.30

"43.88

[ 100 .00 ]

3.5,92

1784

46F, 

41-94

6.20

1.90

"18.98

"29.24

"43.68

[100.00]

3,5,92

1785

46F, 

41-299

»2.06

( .15

{ .68

"45.63

.59

50.88

TOO QQ '

(1.2)97

1786

46F, 4 

42-279

ft 0 OA

.34

.36

"45.92

49.34

3 TOO QO 1

(3,2)94

1787

16F, 

42-285

*4 63

.41

.94

"44.21

2.09

47.72

100.00

(3,3)91

1788

46F, 

42-284

 4 44

.79

.92

"49.49

1.77

42.50

[99.91]

( 2,5)81

1789

46F, 

42-286

1.23

.93

"41.92

2.78

48.48

[99.97]

(1,6)93

1790

46F, 

41-296

1.47

.70

.82

24.5

25.2

.1

"47.2

[100.0]

0.3.97

Magnesian

1791 1792

46F, 46F, 

41-294 41-293

1.21 *0.80

.38 .3

.83 Trace

"45.53 "46.9

.10 .9

.08 ____ _

50.15 51.1

[98.28] 100.0

0,2.95 (0.1)98

Maonptirp Maonerite

1793

46F, 

43-134

7.65

.30

.70

43.5

.03

.08

"48.0

[100.3]

6,2.92

Mamesite

1794

46F, 

43-133

«7.6

/ 1-4

"35.6

"9.3

"46.1

[100.0]

(5.4)91

Dolomitic

dolomite magnesite

'Reported as insoluble (silica) .

*Iron.

'Sample dried at 110°-112°C; ignition loss 1,000°-1,100-C.

4 A composite of samples 1749-1753 contained Na,O = 225 ppm, 

K,O = 600 ppm, TiO, = <30 ppm, S = 15 ppm.

A composite of samples 1761-1766 contained Na,O = 225 ppm, 

K,O = 560 ppm, TiO, = 40 ppm, S = 40 ppm.

*A composite of samples 1767-1770 contained NajO = 220 ppm. 

K,O = 560 ppm, TiO, = <30 ppm. S = 470 ppm.

'Water at 110*C and undetermined matter;by difference. 

'At 110°C. 

"CO..

u 100.00 percent in text, 

"insoluble.

"Calculated from reported MgCO, and (or) CaCO,. 

"By difference. 

"CO,, calculated bom reported MgCOj, and CaCO,.
ANALYSES OF SAMPLES 195

Specuochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: Li2O,BeO lBsO|,NasO,K2O,ScsO|,VtO|,NiO,CoO,ZnO.GatO> ,GeOs ,AssO> ,YsOj,ZiOs ,NbiOg,MoO}.Ag|O,Ru, 

Rh,Pd,CdO.IntO,.SnO,.Sl>ip,.BaO.TeOi.CstO. La,O,. CeO,.PiiO,.Nd,O,.SmlO,.EnO,.Gd,O,.Tb,O,. 

Au. Tl,0,.Bi,0,.ThOj.UO,]

TiO, __

Ct^J, 

MnO 

CuO ___

SrQ__ 

TiO, 

Cl,0, 

MnO ___

CuO ___

SrO ___

PbO ___

TiOj __ .

Ct,0, __.

MnO __ .

1747

________ 0.004

________ .00083

________ .12

________ .0018

________ .018

1760

________ 0.01

________ .06

________ .0021

________ .014

1773

_______ 0.0048

_______ .0007

_______ .076

1748

0.0068

.0010

.038

.0010

.024

1761

0.013

.0007

.06

.0011

.02

1774

0.0032

.0005

.045

1749

0.0092

.00064

.16

.00094

.015

1762

0.012

.086

.0011

.027

1775

.0012

.075

0.0064

.00093

.15

.00063

.013

1763

0.0068

.15

.0021

.016

1776

0.0056

.085

1750

0.0048

.0012

.24

.00063

.011

1764

0.0088

.0013

.11

.0012

.018

1777

0.015

.0024

.084

1751

0.006

.0008

.17

.00069

.013

1765

0.006

.0015

.10

.00093

.02

1778

0.002

.068

1752

0.0064

.0018

.13

.00043

.015

1766

0.01

.0012

.14

.0034

.022

CuO ____

SrO _____

PbO _____

1753

0.011

.0018

.15

.00066

.018

1767

0.002

.00054

.055

.00099

.018

1773

0.0033

.018

1755

0.0052

.00077

.05

.0012

.C(14

1768

0.0076

.0016

.038

.00099

.017

.002

1774

0.0013

.019

1756

0.0076

.00058

.05

.0014

.018

1769

0.0076

.00093

.084

.0011

.013

.012

1775

0.0015

.038

1757

0.0044

.0012

.13

.0013

.021

1770

0.0044

.086

.0017

.018

.005

1776

0.0011

.02

1758

0.013

.0010

.10

.0029

.020

1771

0.005

.0020

.033

.00094

.024

1777

0.0021

.032

1759

0.0076

.00086

.092

.0017

.018

1772

0.006

.0027

.051

.0018

.028

1778

0.0020

.017

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

1743- 1746. Stevens County. Permian. Sec. 15. T. 37 N.. R. 38 E.. about 1 mile 

south of town of Evans. Ideal Cement Co., abandoned quarries. 

( Hodge. 1938d, p. 13, 95, 103-W6, 107; Mills, 1962, p. 123, 125, 

126.) Limestone, white to dark-gray. Index and geologic maps. Use: 

Flux, chicken grit, pulp and paper industry.

1743- 1745. Si sec. 15.

1747 -1756. Stevens County. Permian. Sec. 22. T. 37 N., R. 38 E., about 1.5 

miles southeast of Evans. Analyst, under supervision of Mark Adams; 

spectrochemical analyst, C. E. Harvey. ( Mills, 1962, p. 12, 13, 126- 

129. 248. 249. 259, 261, 264, pi. 1.) Limestone, light-gray to gray, 

very fine grained, massive; weathers light gray or white. Chip sample 

from outcrop. Tonnage estimated. Index and geologic maps. Possible 

use: Mineral filler, pulp and paper industry, builders'lime, ceramic 

whiting.

1747. 1748. NEiNEi sec. 22, Brooks property. Samples S-132, S-133.

1749-1756. NWlNEi sec. 22, U.S. Government land. Samples 

S-62toS-67, S-130, S-131.

1757-1778. County, age, analysts, maps, and use as in samples 1747-1756. T. 37 N., 

R. 38 E. ( Mills. 1962, p. 12, 13, 135, 138, 239-142, 247. 248. 258- 

260, 264, pi. 1.) Limestone, white to light-gray, fine- to mediumgrained, massive, fossiliferous. Little overburden. Chip sample from 

outcrop. Tonnage estimated. Possible use: Portland cement.

1757-1760. NEiSEi sec. 34, McDonald property. Samples S-81 to

S-84.

1761-1766. SEiSEi sec. 34, Fuhrman property. Samples S-38 to 

S-43.

1767-1778. NWiNWi sec. 35, State land. Samples S-44 to S-47, 

S-79, S-80, S-85 toS-90.

1779, 1780. Stevens County. Probably Carboniferous. NWi NEi sec. 13, T. 37 N., 

R. 39 E.. about 14 miles from town of Colville. Jefferson Marble, 

Mining, and Milling Co. ( Shedd, 1903, p. 109-JjJ., 112, 137, 142; 

Eckel. 1905. p. 324. 325; Mills, 1962. p. 171, JL72.) Marble, finegrained , crystalline; both massive and stratified. Possible use: 

Portland cement, dimension stone, ornamental stone.

1779. [Limestone], white; bulk density 2.719. Physical properties.

1780. Analyst, R. W. Thatcher. [Limestone], pinkish. Thin-section 

description.

W ashington Continued

1781. Stevens County. Probably Carboniferous. Sec. 13, T. 38 N., R. 37 E., 

2.5 miles northwest of town of Bossburg. Analyst, R. W. Thatcher. 

Sample 88. (Shedd, 1903, p. 129, 130. 142; Eckel, 1905, p. 324, 

325.) Limestone, light-gray, coarse-grained. Bulk density 2.73. 

Physical properties. Possible use: Portland cement, dimension stone, 

ornamental stone.

1782. Stevens County. Paleozoic. SWj sec. 10, T. 37 N., R. 38 E., about 

0.5 mile northeast of Evans. U.S. Gypsum Co. quarry. Analyst, 

A. A. Hammer. Sample 86. ( Shedd, 1913, p. 147. 246. pi. 21; 

Landes, 1934, p. 1077, 1079, 1080; Mills, 1962, p. 117-.119. 120.) 

Limestone, light-gray to gray, fine- to medium-grained, beds from 

several inches to 3 or 4 ft thick. Tonnage estimated. Index and 

geologic maps. Use: Cement, mineral filler, builders' lime, ceramic 

whiting, sugar industry, pulp and paper industry. Possible use: Portland 

cement.

1783, 1784. Stevens County. Sec. 18. T. 32 N., R. 38 E. (Hodge, 1935c. p. 6.) 

[Dolomite.] Tonnage estimated. Use: Furnace lining.

1785-1793. Stevens County. [T. 32 N., R. 40 E.], town of Chewelah. ( Ralston 

and others. 1925. p. 1, 9. 10, 15-11, 22-24, 59, 78, 80, 91-93.) 

Magnesite [except where noted], crystalline. Physical tests. Possible 

use: Production of plastic magnesia for use in composition flooring, 

plasters, stucco; magnesian mortars.

1785. Northwest Magnesite Co. Analyst, E. H. Delius. Sample 

M-25.

1786. Northwest Magnesite Co. Analysts, E. H. Delius, 

F. C. Henriques. Sample M-29.

1787. Northwest Magnesite Co. Analyst, E. H. Delius. Sample 

M-33.

1788. Northwest Magnesite Co. Analyst, F. C. Henriques. 

Sample M-45.

1789. Analysts, W. C. Riddell, W. S. Motley, R. L. Sebastian. 

Sample M-l.

1790. Analyst, W. S. Morley. Sample M-15. Dolomite. Possible 

use: Magnesian mortars, stucco.

1791. Analyst, W. S. Morley. Sample M-16.

1792. Analyst, F. C. Henriques. Sample M-19.

1793. Sample M-29.

1794. County and locality as in samples 1785-1793. ( Dean and others, 1938, 

p. 32, 34.) Magnesite, beneficiation tests.
196 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F;), common-rock category Continued

Chemical analyses Continued

Si02 _

Alj03 

Fe.03

FeO _ ..__

MgO _ _

CaO ___

CO. 

Total

Class ____

CaO/MgO _

SiO- _____

Insoluble _ .

Alj03 __ _.

Fe.0,__ _.

MgO _ _.

CaO _

PZ05

CO. .

Total

CaO/MgO

SiO2 __ .

A1Z 03 .

Fe_0, _

FeO _____

MgO ___

CaO _____

H.O+ _ _.

H2 0- _ _.

P_05 .

COj _____

sos _____

Total

CaO/MgO_.

1795

46Fj 

41-205

_ _ __ 0.64

__ __ .85

_ _ _ 47.27

_ _ _ _ .81

_ _ _ _ 50.31

_______ 99.88

______ 1.0.97

_ __ _ _ Magnesite

1808

46FZ 

41-216

. _____ 0.90

. \

r .DO

. _______ '20.62

. _____ '31.09

. ______ '46. 93

_____ [100.12]

. ______ 0.1,99

. _ _ ___ Dolomite

1821

46F2 

41-248

. _ ___ 2.94

. ____ _ .49

. ______ .49

. _ _ __ Trace

. _____ 18.56

. ______ 31.56

. ______ 'Trace

. ______ 7 Trace

. ______ 45.91

______ 99.95

_______ 2,2,96

Calcareous

dolomite

1796

46F2 

41-291

0.17

10.78

43.24

45.75

99.94

0,0,100

Calcareous 

dolomite

1809

46FZ 

41-235

3.98

21.15

33.07

*41.19

99.80

3,1,87

Dolomite

1822

46FZ 

41-266

0.90

} '.75

.90

54.50

[57.05]

0,2,97

1797

46F2 

41-207

23.0

27.5

[50.5]

0,0,97

Dolomite

1810

46FZ 

41-261

1.00

'.50

1.00

54.25

[56.75]

0,1,98

Calcite

1823

46F2 

41-265

0.90

S 1.00

54.50

[57.40]

0,2,96

1798

46F2 

42-289

5.28

2.58

.64

1.01

17.28

44.27

99.89

0,9,90

Dolomite

1811

46FZ 

42-257

0.91

S .ll

.37

55.46

.008

4 43.29

5 [100. 15]

Calcite

1824

46Ft 

41-249

0.98

f .36

^

54.48

Z 43.26

99.87

0,1,98

Washington Continued

1799 1800 1801

46F2 46F2 46Ft 

41-213 41-212 41-217

1.12 0.56 1.70

J ,96 .40 .56

23.62 .79 .56

2 43.61 2 43.12 Z42.18

98.87 100.02 99.57

Dolomite Calcite Calcite

W ashington C ontinued

1812 1813 1814

46F. 46FZ 46F. 

42-258 42-259 42-260

1.29 0.53 1.44

3 .27 '.20 3 .51

.28 .35 .47

.022 .017 .011

4 42.82 4 43.19 4 42.90

5 [100.18] 5 [99.93] 5 [99.93]

Calcite Calcite Calcite

Washington Continued

1825 1826 1827

46F, 46F. 46F. 

41-245 41-267 41-259

4.68 1.00 1.76

| S 1.56 '.20 Trace

^

Z42.53 _____ *42.50 '

99.82 [56.30] 99.63

2,7,91 1,1,98 2,0,97

1802

46FZ 

41-231

2.90

'19.41

'28.91

'43.88

[96.47]

1.4,92

Dolomite

1815

46F, 

41-104

0.42

.38

f |_ -.03M

.56

55.54

Z 42.40

[99.47]

Calcite

1828

46F.

41-269

1.18

».18

'55.36

'43.45

100.17

1.0,99

Calcite

1803

46F2 

41-233

3.91

1.23

20.28

Z 43.72

100.13

2.4,91

Dolomite

1816

46F, 

42-261

0.73

] 3 .24

.27

54.99

.003

4 43 .49

[99.72]

Calcite

1829

46F, 

41-118

6.41

2.09

51.51

f 40.13

100.14

3,6,90

1804

46FZ 

41-219

3.54

.76

'20.93

'29.41

'45.95

[100.59]

2,2.96

Dolomite

1817

46FZ 

42-262

1.56

3 .12

.27

54.83

.022

4 43.17

[99.97]

1,0,98

Calcite

1830

46F, 

41-275

2.86

2.18

'l.70

'50.59

'41.57

98.90

0,5,94

1805

46FZ 

41-222

0.80

.90

'21.26

'30.30

'47.00

[100.26]

0.1.99

Dolomite

1818

46FZ 

41-102

1.15

Trace

54.21

2 43.64

[99.00]

1.1.97

Calcite

1831

46F,

41-276

4.40

3.04

'1.66

'49.19

'40.43

98.72

0.8,91

1806

46F2 

41-220

1.72

.40

'21.18

[100.14]

1.1.98

Dolomite

1819

46Ft 

41-262

0.92

'.52

.15

[56.59]

0,2,98

Calcite

1832

46F2 

41-120

2.3

( A \ .23

.5

53.4

*42.5

99.3

1.2.96

1807

46F2 

41-221

2.72

.98

'20.38

'29.60

'45.49

[99.17]

1.3.95

Dolomite

1820

46Ft 

41-263

0.90

«.30

1.00

54.30

[56.50]

0.1.98

Calcite

1833

46F2 

37-77

3.04

f 52

I " 52

.30

53.69

.010

*42.39

[99.95]

2,2,96

Calcite

'Calculated from reported MgCOj and (or) CaCOs . *A composite of samples 1811-1814 contained Na.O = 190 ppm,

2 Ignition loss. K_O = 840 ppm, TiOj = < 30 ppm, S = 45 ppm.

3 R-0S . Above 110»C.

4 S ample dried at 110"-112"C; ignition loss 1,000"-I.IOO'C. T At 110°C.

Specnochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: LijO.BeO.B.Oj.Na.O.KjO.Sc.Oj.VjOg.CrjO-.NiO.CoO.ZnO.Ga.Oj.GeO-.AszOj.YjOj, ZrO_,Nb2Og .MoOs . 

AgjO. Ru. Rh. Pd ,C dO. In.O-. SnO-. Sb2 O3 ,BaO, TeO-, Cs_O. La_Os, CeO_, Pr_Os,Nd_Os, Sm.O- ,Eu2Oj, Gd_Os , Tb_Os , Dy.Og, Hc^Oj ,Er_O3 ,1 

Os.Ir.Pt.Au.TlzOs.PbO.BijO-.ThO-.UOj]

Ti02 _____

MnO __ _

1811

_____ 0.0044

__ _ .012

1812

0.013

.012

1813

0.0037

.015

1814

0.021

.016

1816

0.011

.018

1817

0.0052

.01

CuO __ .

SrO __ .

1811

._ 0.00055

.010

1812

0.0012

.0076

1813

0.0015

.010

1814

0.00096

.013

1816

0.0013

.017

1817

0.0011

.015
ANALYSES OF SAMPLES 197

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Washington Continued Washington Continued

109. Ill, 112.) Limestone, white, light-gray. Index and geologic 

maps.

1795. Stevens County. [Sees. 11-14, T. 32 N., R. 40 E.j, town of Chewelah. 

Analyst, Chase Palmer; collector, R. W. Stone. Record 3220. ( Wells, 

1937, p. 62; Hodge, 1938b, p. 36, 41, 43, 51, pi. 2.) Magnesite. 

Tonnage estimated. Index and geologic maps, geologic sections.

1796. Stevens County. Sees. 7, 8, T. 32 N. , R. 41 E., 3 miles east of

Chewelah. Columbia Marble and Onyx Co. Analyst, R. W. Thatcher. 

( Shedd, 1903, p. 125.^26. 127, 137, 142.) Dolomitic marble, white, 

medium-grained, uniform. Bulk density 2.754. Physical properties. 

Possible use: Dimension stone [ implied].

1797. Stevens County. [Probably T. 32 N., R. 41 E.], southwest slope of Eagle 

Mountain, Chewelah district. Analyst, J. G. Fairchild. (Bancroft, 

1914, p. 1, 13, 15, 39, 42, 94, j)5.) Dolomite, white, coarsely 

crystalline. Index and geologic maps.

1798. Stevens County. Probably sec. 32, T. 33 N., R. 40 E., about 4 miles 

northwest of Chewelah. The Great Western Marble and Onyx Co. 

Analyst, R. W. Thatcher. (Shedd, 1903, p. 122,^23. 124, 137, 142.) 

[Dolomite] marble, pinkish-white, generally massive. Thin-section 

description. Physical properties. Possible use: Dimension stone.

1799. Stevens County. Ts. 33, 34 N., R. 38 E., near town of Addy. Near

Crystal quarry. Analyst, A. A. Hammer. Sample 56. (Shedd, 1913, 

p. 139, 140, 246, pi. 21.) [Dolomite] magnesian limestone. Index 

map. Use: Dimension stone.

1800. Stevens County. Sec. 27, T. 34 N., R. 39 E., Addy. Jacobs farm. 

Analyst, A. A. Hammer. Sample 85. ( Shedd, 1913, p. 140, 246, 

pi. 21; Hodge, 1944, p. 15, 48, pi. 4.) Limestone, light. Tonnage 

estimated. Index maps.

1801. Stevens County. Sees. 27, 34, 35, T. 35 N., R. 37 E., and sees. 2, 3, 

T. 34 N., R. 37 E., 6 miles south of town of Kettle Falls, Peaceful 

Valley. Analyst, A. A. Hammer. Sample 44. (Shedd, 1913, p. _143,

245. pi. 21.) Limestone, gray, crystalline, fine-grained, uniform 

texture, flinty appearance. Index map. Possible use: Portland cement.

1802. Stevens County. [Sees 8, 9, T. 35 N., R. 39 E.], town of Colville. 

Old quarry. (Hodge, 1935a, p. 117, 118.) Dolomite. Tonnage estimated. Possible use: Refractories.

1803 Stevens County. Sec. 13, T. 35 N., R. 39 E., 4 miles east of Colville. 

Analyst, A. A. Hammer. Sample 75. ( Shedd, 1913, p. 134, 135,

246. pi. 21.) [Dolomite] limestone, dark-gray, crystalline. Thinsection description. Index map. Possible use: None.

1804- 1808. Stevens County. [T. 35 N., R. 39 E ], near Colvtlle, on Colorado

River. Lab. Nos. 57-61. ( Weitz, 1942, p. 2, J9. 82.) Dolomite. 

Index map. Possible use: Source of magnesium, refractories.

1809. Stevens County. [Sec. 9, T. 35 N., R. 40 E.], about 4 miles east of

Colville. Old Dominion mine. Analyst, A. A. Hammer. Sample 73. 

(Shedd, 1913, p. 134, JU35. 246, pi. 21.) [Dolomite] limestone, 

white, coarsely crystalline. Thin-section description. Index map. 

Possible use: None.

1810. Stevens County. [T. 36 N., R. 38 E.], Kettle Falls. ( Hodge, 1944, 

p. 15, 48, 4,9, pis. 4, 5.) Limestone, gray, crystalline. Tonnage 

estimated. Index maps.

1811- 1814. Stevens County. SW* sec. 10, T. 37 N., R. 38 E., about 0.5 mile 

northeast of town of Evans. Boise Cascade Corporation, abandoned 

quarry. Analyst, under supervision of Mark Adams; spectrochemical 

analyst. C. E. Harvey. ( Mills, 1962, p. 12, 13, 117-.120. 248. 259, 

264, pi. 1.) Limestone, light-gray, fine- to medium-grained; beds 

range from several inches to 3 or 4 ft in thickness. Chip samples from 

outcrop represent 200 ft of 250 ft exposure. Tonnage estimated. Index 

and geologic maps Possible use: Cement, mineral filler, builders' 

lime, ceramic whiting, sugar industry, pulp and paper industry.

1811. Sample S-55. 57 ft thick.

1812. Sample S-56, 43 ft thick.

1813. Sample S-57, 43 ft thick.

1814. Sample S-58. 57 ft thick.

1815. Stevens County. SWj sec. 10, T. 37 N., R. 38 E., near town of

Marcus. U.S. Gypsum Co. quarry. (Hodge, 1938d, p. 13, 95, 107-

Use: Lime.

1816-1818. Stevens County. NE? NE? sec. 16, T. 37N.. R. 38 E., 0.25 mile south 

of Evans. Rasmusson property. (Mills, 1962, p. 12, 13. 121-123, 249, 

261, 264, pi. 1.) Limestone, white to light-gray, fine-grained, thinto medium-bedded; about 350 ft thick. Tonnage estimated. Index and 

geologic maps. Possible use: Mineral filler, pulp and paper industry, 

builders' lime, ceramic whiting.

1816, 1817. Analyst, under supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. Chip sample from outcrop.

1816. Sample S-136 represents 33 ft.

1817. Sample S-137 represents 29 ft.

1818. Analyst, A. A. Hammer. Sample 58. ( Shedd, 1913. 

p. 147. 246, pi. 21.) Use: Lime. Possible use: 

Portland cement.

1819. Stevens County. T. 37 N., R. 38 E., town of Marcus. Northwest

Gypsum Co. ( Hodge, 1944, p. 15, 49, pi. 4.) Limestone, selected 

sample. Tonnage estimated. Index map. Use: Lime.

1820. Stevens County. [T. 37 N., R. 39 E.], Clugston Creek. (Hodge, 1944, 

p._15,pl. 4.) Limestone, selected sample. Tonnage estimated. 

Index map.

1821. Stevens County. Sec. 13, T. 38 N., R. 37 E., 2.5 miles northwest of

town of Bossburg. Bryant property. Analyst, R. W. Thatcher. ( Shedd, 

1903, p. 129, 130, 142.) Dolomitic marble, white, coarse-grained, 

stratified. Bulk density 2.73. Physical properties. Possible use: 

Dimension stone, ornamental stone.

1822, 1823. Stevens County. [Sec. 18, T. 38 N., R. 38 E.], Bossburg. (Hodge. 

1944, p. J15, 50, pi. 4.) Limestone, selected sample. Index map. 

1822. Tonnage estimated.

1824. Stevens County. Sec. 18, T. 38 N., R. 38 E., 2 miles north of

Bossburg. Analyst, A. A. Hammer. Sample 89. (Shedd, 1913. 

p. 148, 149, 246, pi. 21.) Limestone, white, medium-grained.' 

Index map. Possible use: Portland cement.

1825. Stevens County. [T. 38 N., R. 38 E.], 1.5 miles northeast of Bossburg. 

Analyst, A. A. Hammer. Sample 45. ( Shedd, 1913, p. 245, pi. 21.) 

Limestone, gray, coarsely crystalline. Index map.

1826. Stevens County. [T. 38 N., R. 38 E.], 7 miles north of Evans. ( Hodge, 

1944, p. 15, 51, pi. 4.) Limestone. Index map.

1827. Stevens County. Sec. 29, T. 38 N., R. 41 E., town of Northport, Deep 

Creek. Analyst, A. A. Hammer. Sample 59. ( Shedd, 1913, p. 159, 

160, 246.) Limestone, white, coarse-grained, crystalline. Possible 

use: Portland cement.

1828. Stevens County. Sees. 28, 33, T. 39 N., R. 39 E., Marble Mountain. 

Lazy S Ranch. Analyst, H. M. Brewer. ( Hodge, 1944, p. J51. 52. 

pl. 4.) Limestone. Tonnage estimated. Index map.

1829. Stevens County. [T. 39 N., R. 40 E.], about 3 miles south of Northport. 

Analyst. A. A. Hammer. Sample 60. ( Shedd, 1913. p. 154. 155. 

^46, pl. 21.) Limestone, light-gray, fine-grained. Index map. 

Possible use: Portland cement, flux [ implied].

1830, 1831. Stevens County. [T. 39 N., R. 43 E., near town of] Metaline Falls.

Inland Portland Cement Co. Analyst, C. R. Ranch. ( Burchard, 1912, 

p. 695, pl. 1.) Limestone, quarried. Index map.

1832. Stevens County. [T. 40N., R. 40E.], near Northport. Limestone quarry. 

( Wilson and Skinner, 1937, p.6,jJ4.57,76._152.) Limestone, white. Indexmap. Physical tests. Use: Whiting [ implied]. Possibleuse: Putty.

1833. Whatcom County. Devonian to Early Permian, Chilliwack Group.

SWi NWi sec. 17, T. 40 N., R. 6 E., Black Mountain. Old quarry. 

Analyst, C. S. Homi; collector, W. R. Danner. Sample W2-1. 

( Moen, 1962, p. 4, 8, 92, 97, 100, 119, pl. 1.) Limestone, gray, 

dense. Index and geologic maps, geologic sections. Possibleuse: 

Concrete aggregate, ballast, road metal, riprap.
198 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

SiOj __ ______

RjO, .

MgO _________

CaO _________

P205 _

Total ___

Class _________

CaO/MgO ______

SiO, _________

R,0, _

MeO ________

CaO _________

P|05 _

Ignition loss*__ _

Total ___

Class _________

CaO/MgO ______

SiO, _________

A120, _

Fe,0, ________ .

MgO _________

CaO _________

P,05 _

Ignition loss ____

Total ____

Class _________

CaO/MgO ______

1834

46F,37-13

. __ 6.95

. __ 1.09

. __ .44

. __ 50.79

. __ .031

. __ *40.43

.___ [99.73]

. __ 5,3,91

._ _ Calcite

1847

46F237-150

. __ 2.70

. __ .76

. __ .18

. __ 53.65

. __ .012

. __ 42.59

. __ [99.89]

. __ 1,2,96

Calcite

1860

46F2 

37-164

. __ 5.16

. __ .82

. __ .95

. __ .70

. __ 58.87

. __ [66.50]

. __ 3,5.75

. __ Calcite

1835

46Fz37-28

5.05

.82

.55

51.95

.021

*41.32

[99.71]

4,2,93

Calcite

1848

46F2 37-78

3.81

.96

.28

52.75

.004

41.90

[99.70]

2,3,95

Calcite

1861

46F;

37-41

2.43

) '55

f *OO

.31

53.89

.010

*42.57

*[99.76]

2,2,96

Calcite

1836

46F2 37-55

7.16

.90

.46

50.73

.008

*40.44

'[99.70]

6,3,91

Calcite

1849

46F,37-80

2.16

.64

.18

54.19

.010

42.70

[99.88]

1,2,97

Calcite

1862

46F2 

37-92

0.67

5 .32

.16

55.63

.200

*42.97

[99.95]

0,1,97

Calcite

1837

46F237-56

6.91

1.72

.62

50.22

.009

*40.20

[99.68]

4,5,90

Calcite

1850

46F237-81

5.50

.93

.31

51.88

.004

41.13

[99.75]

4,3,93

Calcite

1863

46Fj < 

37-93

0.37

5 .26

.10

55.71

.248

*43.12

[99.81]

0.1,98

Calcite

Washington Continued

1838 1839 1840

46F237-58 46F237-59 46F237-60

2.61 2.41 2.27

1.46 .71 .94

.23 .21 1.31

53.53 53.89 52.19

.008 .005 .007

*41.92 Z 42.69 *43.60

[99.76] [99.92] [100.32]

0,4,94 1,2,97 1,4,96

Calcite Calcite Calcite

W ashington C ontinue d

1851 1852 1853

46Fj37-84 46Fj37-86 46F237-87

2.43 2.76 2.06

.47 .84 .62

.26 .46 .23

53.96 53.15 54.05

.010 .008 .007

42.67 42.32 42.73

[99.80] [99.54] [99.70]

2,1,97 1.2,96 1.2,97

Calcite Calcite Calcite

Washington Continued

1864 1865 1866

Xft 46F2 46F2 

37-94 37-95 37-33

0.09 0.40 0.48

5 .09 5 .37 1.00

.19 .19 2.05

55.33 55.36 52.88

.150 .209 ____ _

*43.37 *43.10 43.14

[99.22] [99.63] 99.55

0.0,99 0,1,98 0,1,97

Calcite Calcite Calcite

1841

46F237-61

1.48

.52

.18

54.47

.090

*43.10

[99.84]

1.2,98

Calcite

1854

46F237-88

7.33

1.05

.10

50.98

.010

40.25

[99.72]

6,3,91

Calcite

1867

46F2 

37-180

7.34

5 .97

.30

50.41

.026

*40.26

'[99.31]

6,3,91

Calcite

1842

46F2 37-62

0.26

.16

20

55.27

.004

*43.45

[99.34]

0,0,99

Calcite

1855

46F,37-89

6.25

1.22

.18

51.43

.006

40.68

4 [99.77]

4,4,92

Calcite

1868

46F, 

37-179

4.10

".75

.18

52.43

.022

*41.71

'[99.19]

3.2.94

Calcite

1843

46F237-63

3.15

1.03

.14

53.33

.007

*42.21

[99.87]

1,3,95

Calcite

1856

46F237-90

8.84

.71

.14

50.38

.008

39.84

[99.92]

8,2,90

Calcite

1869

46F2 

37-178

3.30

5 .67

.22

53.33

.022

*42.09

'[99.63]

2.2,95

Calcite

1844

46F2 37-47

8.52

1.08

.31

50.16

.011

*39.84

[99.92]

7,3,90

Calcite

1857

46F,37-91

2.28

.71

.45

53.75

.004

42.32

[99.51]

1,2,96

Calcite

1870

46F2 

37-177

2.72

5 .43

.18

53.18

.014

*42.40

7 [98.92]

2,2,95

Calcite

1845

46F237-85

2.72

*.72

.15

53.68

.012

42.60

[99.88]

2.2.96

Calcite

1858

46F,37-166

3.02

.51

.32

53.64

.010

42.43

[99.93]

2,1,96

Calcite

1871

46F2 ' 

37-176

5.27

51.35

1.05

50.93

.021

*41.01

'[99.63]

3.4,92

Calcite

1846

46F237-30

3.04

'.76

.30

52.48

42.14

98.72

2,3,94

Calcite

1859

46F237-76

6.49

.82

.12

51.36

.016

40.83

[99.64]

5.3,92

Calcite

1872

t6F2 

37-175

0.61

...o

.24

55.79

.013

*42.91

[99.81]

0.1.97

Calcite

'Sample dried at 110«-112«C; 

ignition loss 1,000»- 1,100°C.

a NauO = 175 ppm, KjO = 560 ppm, 

TiO, = 250 ppm, S = 740 ppm.

4 NajO = 210 ppm. KjO = 565 ppm, 

TiO, = 200 ppm, S = 73 ppm.

5 R_0».

* Na,O = 250 ppm, K,O = 550 ppm, 

TiO, = 65 ppm, S = 840 ppm.

7 A composite of samples 1867-1871 

contained Na,O= 155 ppm, K,O =490 ppm, 

TiO, = 170 ppm, S = 460 ppm.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: Li2O,BeO,BjOj,KjO,SclOJ ,CoO,ZnO,Ga2O5,GeOj,AsjOs,Y2O,,ZrOj,NbiOs.MoO5,AgIO,Ru,Rh,Pd,CdO, 

InjO,, SnO,, SbjO, ,BaO, TeO,, CsjO, LajO,, CeO,, Pr2O,, NdjO,, Sm 2O, ,E u,O, .GdjO,, TbjO,, Dy,O,, Ho^3, ,Er»O,, TmjO,, Yb,O,, Lu,O,,HfC.,TajOi,WO,.Re,O7 ,Os,Ir,Pt,Au,Tl^),, 

PbO,BijO,,ThO,,UO,]

Na,0 _______ _____

TiO, _____________

V2 05 _____________

Cr20, _____________

MnO _____________

NiO ______________

CuO _____________

SrO ______________

Na2O __________ _

TiO, _____ ______

VjO5 _____________

CrjO, ________ _

MnO _____________

NiO _____________

CuO

SrO ______________

NajO __ _

TiO, _____________

V2 05 _____________

Cr.O. _____________

1834

, ______ 0.012

, ______ .0005

. ______ .12

, ______ .0020

, ______ .013

1848

. ______ 0.11

. ______ .029

, ______ .0005

. ______ .042

. ______ .001

, ______ .0015

______ .0065

1835

0.023

.12

.0019

.012

1849

0.0088

.060

.0026

.0042

.0079

1861

0.013

1836

0.052

.15

.001

.0035

.015

1850

0.024

.042

.001

.0029

.0083

1862

0.024

1837

.068

.0043

.018

1851

0.012

.045

.0023

.0094

1863

1838

0.039

.048

.001

.0016

.012

1852

0.018

.10

.0019

.010

1864

1839

0.015

.038

.001

.0016

.011

1853

0.016

.09

.0025

.0084

1865

0.05

.0096

1840

0.067

.003

.0005

.035

.0017

.011

1854

0.015

.0005

.21

.0042

.015

1867

0.068

.026

.0018

1841

0.016

.0005

.24

.0018

.012

1855

0.28

.024

.12

.003

.0098

1868

0.010

.0009

1842

0.0044

.035

.0014

.0084

1856

0.024

.09

.0037

.011

1869

0.05

.0092

.00099

1843

0.059

.0048

.0005

.04

.0012

.0094

1857

0.017

.09

.0035

.011

1870

0.05

.0068

.0008

1844

0.019

.00055

.055

.001

.0046

.013

1858

0.011

.058

.0049

.0063

1871

0.039

.003

.0012

1847

0.014

.10

.0015

.010

1859

0.028

.003

.0005

.063

.0017

.0026

.012

1872

0.0064
ANALYSES OF SAMPLES 199

MnO _________ , NiO _________ , CuO __________ ,

SlO ____________

1861

_________________ 0.092

___ ,001

________________ .0024

_________________ .0089

1862

0.014

.0025

.027

1863

0.008

.0017

.011

1864

0.01

.0015

.011

1865

0.021

.0018

.011

1867

0.045

.0021

.010

1868

0.05

.0013

.013

1869

0.073

.0018

.013

1870

0.043

.00094

.014

1871

0.04

.0019

.021

1872

0.15

.0012

.011

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

W ashington Continued

1834,1835. Whatcom County. Devonian part of Chilliwack Group. NWi sec. 9.

T. 40 N., R. 5 E.. about 6 miles from town of Sumas. Hilltop deposit. 

Analyst, C. S. Homi; spectrochemical analyst, C. E. Harvey. ( Moen, 

1962. p. 4. 8, 15, 97, 100. 119, pi. 1; Danner, 1966. p. 16, 19, 82, 

209, 210. 230. 231. 453. 466.) Limestone, light-gray, dense, fossiliferous; chip sample. Thin-section description. Limited tonnage. 

Index and geologic maps, geologic sections. Possible use: Concrete 

aggregate, ballast, road metal, riprap.

1834. Sample W 19-1 taken across 150 ft.

1835. Sample W 19-2 taken across 70 ft.

1836- 1843. Whatcom County. Devonian part of Chilliwack Group. West central part 

of sec. 21, T. 40 N., R. 5 E., east slope of Sumas Mountain. Sumas 

Mountain deposit. Analyst, C. S. Homi; spectrochemical analyst, 

C. E. Harvey. ( Moen, 1962, p. 4. 8, 15, 95, 96, 99, 119, pi. 1; 

Danner. 1966. p. 16, 19, 82. 209, 210, 233-235, 236. 453, 466.) 

Limestone, light-gray to dark-gray, generally dense; about 200 ft thick. 

Chip sample. Index and geologic maps, geologic sections. Possible 

use: Concrete aggregate, ballast, road metal, riprap.

1836. Sample W 18-1, composite.

1837. Sample W 18-2 taken across 60 ft.

1838. Sample W 18-4 taken across 140 ft.

1839. Sample W 18-5, composite.

1840. Sample W 18-6, composite.

1841. Sample W 18-7. composite.

1842. Sample W 18-8, composite.

1843. Sample W 18-9. composite.

1844. County, analysts, references, maps, and use as in samples 1836-1843.

Early Late Devonian part of Chilliwack Group. NEi sec. 23, T. 40 N., 

R. 5 E., west side of Red Mountain. Northwestern Lime Co. Sample 

W 8-1. Limestone, light-blue-gray, dense, fossiliferous; chip sample 

taken across 120 ft. Moderate to large tonnage.

1845. Whatcom County. [Early Late Devonian] part of Chilliwack Group. NEi 

sec. 28. T. 40 N., R. 5 E., 1.25 miles northwest of town of Kendall. 

Balfour quarries. Analyst, C. S. Homi; collector, W. R. Danner. 

Sample W 16-8. ( Moen, 1962, p. 4, 8, 94-98, pi. 1.) General: 

Limestone, medium- to dark-gray, finely to coarsely crystalline, 

massive to well-bedded, fossiliferous. Maximum thickness about 

150 ft; thick overburden. Index and geologic maps, geologic sections. 

Former use: Cement.

1846. County, age, group, and locality as in sample 1845. Analyst,

A. A. Hammer. Sample 122. ( shedd, 1913, p. 209, 212, 213. 247, 

pi. 21; Danner. 1966. p. 82, 209, 210, 225. 226, 229.) General: 

Limestone, white to dark-gray, coarsely crystalline. Surface sample. 

Index and geologic maps. Possible use: Portland cement.

1847. County, age. group, and locality as in sample 1845. Analyst,

Mark Adams; spectrochemical analyst, C. E. Harvey. Sample W 16-8. 

( Danner, 1966, p. 16, 19. 82, 209. 210. 225, 226, 229. 453. 466.) 

Limestone, dark-gray to black, dense, crystalline or organoclastic 

texture; weathers light gray. Chip sample taken across 240 ft. Index 

and geologic maps. Possible use: None, deposit small.

1848- 1857. County, age, group, locality, remarks, and use as in sample 1845. Analyst, C. S. Homi; spectrochemical analyst, C. E. Harvey. ( Moen, 

1962. p. 4, 8, 94-98, pi. 1; Danner. 1966. p. 16, 19. 82, 209, 210, 

225, 226, 229. 453. 466.) Chip sample.

1848. Sample W 16-1 taken across 130 ft.

1849. Sample W 16-3 taken across 140 ft.

1850. Sample W 16-4 taken across 170 ft.

1851. Sample W 16-7, composite.

1852. Sample W 16-9 taken across 250 ft.

1853. Sample W 16-10 taken across 130 ft.

1854. Sample W 16-11 taken across 110 ft.

1855. Sample W 16-12 taken across 100 ft.

1856. Sample W 16-13, composite.

1857. Sample W 16-14, composite.

Washington Continued

1858,1859. Whatcom County. Early Late Devonian part of Chilliwack Group. NWi 

sec. 17, T. 40 N., R. 6 E., north of town of Maple Falls. German 

deposit. Analyst, C. S. Homi or Mark Adams; spectrochemical analyst, C. E. Harvey. (Danner, 1966, p. 16, 19. 82. 209, 210, 241, 

242. 243, 452, 453, 465.) Limestone, gray, dense to crystalline, 

fossiliferous. Possible use: None, deposit small.

1858. SWiNWi sec. 17. Sample W 2-1. Chip sample taken across 

60ft.

1859. Sample W 23-1. Thin-section description. Chip sample taken 

across 150 ft. Possible use: Concrete aggregate, ballast, 

road metal, riprap.

1860, 1861. Whatcom County. Early Late Devonian part of Chilliwack Group. 

Center Wi sec. 19, T. 40 N., R. 6 E. Doaks Creek deposit, 

Mitchell Bay Lime Co. quarry. Alternating layers of dense gray limestone and coralline limestone; deposit at least 200 ft thick. Tonnage 

estimated. Index and geologic maps, geologic section. Use: Pulp 

and paper industry [implied] .

1860. Analyst, T. H. Williams. ( Danner, 1966. p. 82. 209. 210, 

239, 240.) Sample taken across 160 ft.

1861. Analyst, C. S. Homi; spectrochemical analyst, C. E. Harvey. 

Sample W 4-1. ( Moen, 1962, p. 4, 8. 88, 93, 94, 99, 119, 

pi. 1; Danner, 1966, p. 16, 19, 82. 209, 210, 239, 240. 

452, 465.) Chip sample taken across 120 ft. Possible use: 

Concrete aggregate, ballast, road metal, riprap.

1862 - 1865. Whatcom County. Probably Pennsylvania!! part of Chilliwack Group.

Sec. 22, T. 40 N., R. 6 E., 3 miles northeast of town of Maple Falls. 

Mitchell Bay Lime Co. Analyst, C. S. Homi; spectrochemical analyst, C. E. Harvey. ( Moen. 1962, p. 48, 91-93, j«5, 119, pi. 1; 

Danner. 1966. p. 16, 19, 82, 209-JZ13, 452. 465.) Limestone, white 

to gray, crystalline, fossiliferous. Chip sample. Tonnage estimated. Index and geologic maps. Former use: Pulp and paper 

industry. Possible use: Concrete aggregate, ballast, road metal, 

riprap.

1862. NWj sec. 22. Sample W 5-1 taken across 180 ft.

1863. NWi sec. 22. Sample W 5-2 taken across 120 ft. 

1864, 1865. Center sec. 22. Samples W 5-3 and W 5-4 taken across 

100 ft.

1866. Whatcom County. Devonian to Early Permian part of Chilliwack Group 

( Danner, 1966). Ei NW* sec. 22, T. 40 N., R. 6 E., about 4 miles 

northeast of Maple Falls, Boulder Creek. Analyst, A. A. Hammer. 

Sample 125. (Shedd, 1913, p. 215. 216. 247, pi. 21.) Limestone, 

light-colored, coarsely crystalline, massive. Index map. Possible 

use: Portland cement [ implied].

1867 - 1871. Whatcom County. Pennsylvauian part of Chilliwack Group. NEi NEi 

sec. 33, NW^NWi sec. 34, T. 37 N., R. 8 E., unsurveyed, about 

14 miles by road north of town of Concrete. Dock Butte Trail deposit. 

Analyst, under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 259-261, 454. 467.) 

Limestone, dark-bluish-gray, crystalline; weathers light gray. Chip 

sample. Index and geologic maps. Possible use: None, deposit in 

remote area.

1867. Sample W 29-1, composite.

1868. Sample W 29-2. domposite.

1869. Sample W 29-3 taken across 110 ft.

1870. Sample W 29-4. composite.

1871. Sample W 29-5 taken across 50 ft.

1872. County, age, group, analysts, and maps as in samples 1867-1871. South 

center and SW* sec. 32, T. 37 N., R. 8 E., about 16 miles north of 

Concrete. Dock Butte Trail deposit. Sample W 27-1. (Danner, 1966. 

p. 16, 19, 82, 259, 260. 26j, 453, 467.) Limestone, gray to lightgray, finely crystalline. Chip sample taken across 40 ft. Possible use: 

None, deposit small.
200 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing more than 90 percent carbonate (Group Ft), common-rock category Continued

Chemical analyses Continued

SiO, __ _.

A i.ru

FejO, _.

MgO _______ .

CaO _______ . Na,0_ __ .

P,05 .

Total __ .

Class ______ .

CaO/MgO ____ .

SiO, _______ . A1.0, , FejO, , FeO _______ , MgO _______ , CaO ________

Ignition loss _ _.

Total __ , Class ______ , CaO/MgO _____

AljO, _______

FeO _________

CaO ________

Total __

Class ________

CaO/MgO _____

1873

46F, 

37-174

___ 0.35

 | '.30

___ .19

___ 54.83

___ .020

___ *43.53

___ [99.22]

___ 0,1,98

1886

46F, 

37-109

___ 1.77

___ 1.03

___ .31

___ 1.00

___ 52.31

___ 43.13

___ [99.55]

___ 0,4,95

___ Calcite

1899

46F, 

37-9

 | 2.30

___ 17.05

___ 34.33

___ 99.46

0,4,92

Calcareous

dolomite

1874

46F, 

37-173

0.88 

'.60

.19 

54.68

.019 

f 43.06

[99.43] 

0,2,98 

Calcite

1887

46F, 

37-27

1.32 

.29

.21 

.36 

54.60 

'.24

42.98

100.00 

1,1,97 

Calcite

1900

46F, 

37-46

2.56 

'.38

2.92 

50.79

.020 

*43.22

[99.89]

2,1,97

Magnesian 

calcite

1875

46F, 

37-172

0.41 

l .84

.15 

54.90

.025 

'43.48

1876

Washington Continued

1877 1878 1879

46F, 46F, 46F, 46F, 

37-133 37-134 37-138 37-49

2.65 

f .94 

{ .65 

3.23 

49.67 

.00 

.00

42.41

[99.30] [99.55] 

0,1,98 0,4,94

Calcite Ma8»erian 

calcite

1888

t6F, 

37-107

1.37 

} 4 .42

*.12 

5 54.12

*44.74

[100.77] 

1,1,99 

Calcite

1901

46F, 

37-12

7.50 

f 1.17

] .71

.54 

49.99 

7 (.06) 

.037 

39.36

99.31 

5,5,89 

Calcite

1889

46F, 

37-108

1.52

».60 

*54.61

'43.53

[100.61] 

1.1,99 

Calcite

1902

46F,

37-70

2.72

5.70 

47.57

.019 

*43.74

"[100.32]

2,2,97

Magnesian 

calcite

4.48 2.46 8.75 

1.15 .54 1 . 

.83 .25 J " 85 

2.69 1.15 .32 

49.07 52.62 50.10

.01 .02 ______

_ ___ .024

40.94 42.37 *39.74

[99.17] [99.41] »[99.78]

2,5,91 1,2,95 7,2,90

Magnesian C^.K c&lciK 

calcite

Washington Continued

1890 1891 1892

46F, 46F, 46F, 

37-1 37-3 37-8

0.62 1.14 1.80

{ « « 1 .«

H .42 .38 I/

.64 .008 Trace 

54.30 54.84 55.22

»43.27 »43.02 42.14

99.48 99.82 99.74 

0,1,98 0,2.98 1,2,95 

Calcite Calcite Calcite

Washington-Continued

1903 1904 1905

46F, 46FS 46F, 

37-71 37-72 37-96

4.51 l.DO 0.50

1 .9i '.eo '.is

.34 .28 .80 

52.59 54.29 54.79

.010 .018 .030 

*41.66 *42.84 *43.62

[100.02] [99.93] B[99.92] 

3,3,94 1,2,97 0,1,99 

Calcite Calcite Calcite

1880

46F, 

37-52

2.57

.81 

53.21

.030 

*42.72

1881

46F, 

37-48

3.68 

'.68

1.15 

52.24

.022 

*42.26

*[100.17] *[100.03] 

1.2,96 3.2.95 

Calcite Calcite

1893

46F, 

37-6

0.60 

.30

Trace 

55.86

42.66

99.42 

0,1,97 

Calcite

1906

46F, 

37-67

2.05

7.76 

45.02

.026 

*44.33

B[100.21]

0,3,97

Magnesian 

calcite

1894

46F, 

37-7

0.60 

.56

Trace 

55.96

42.60

99.72 

0,1,97 

Calcite

1907

46F, 

37-169

2.52 

f 1.36 

\ .67

12.90 

44.56

[62.01]

0,5,82

Calcareous 

dolomite

1882

46F, 

37-64

6.67 

».54

20.85 

28.18

.018 

*43.89

[100.15] 

6,2.92 

Dolomite

1895

46F, 

37-5

0.46 

.40

55.25

43.36

99.47 

0.1.98 

Calcite

1908

46F, 

37-145

53.38

1883

46F, 

37-117

7.19 

[ 1.26 

I 0.56 

1.51 

48.94

40.56

1884

46F, 

37-113

3.13 

.97 

.46 

.50 

52.62

42.32

[100.02] [100.00] 

4.5,91 1,4,95 

CalcitP Calcite

1896

46F, 

37-168

7.58

7.06 

43.27

41.14

"100.47

5,4,90

Magnesian 

calcite

1909

46F, 

37-144

54.89

[53.38] [54.89] 

0,0,95 0.0.98 

Calcite Calcite

1897

46F, 

37-10

3.94 

1.18 X

.50 

53.07

40.84

99.53 

2.3.92 

Calcite

1910

46F, 

37-143

53.22

[53.22] 

0,0,95 

Calcite

1885

46F, 

37-112

3.46 

1.20 

.46 

1.10 

51.61

42.18

[100.01] 

1.5,94 

Calcite

1898

46F, 

37-4

0.36 

.42

1.02 

55.17

42.86

99.83 

0,1,97 

Calcite

1911

46F, 

37-142

54.22

[54.22] 

0,0,97 

Calcite

'sample dried at 1100 -n2°C; ignition loss 1,000°-1,100°C.

A composite of samples 1879-1881 and samples 467-469 

group Fj contained Na|O = 235 ppm, K|O = 540 ppm, TiOj = 250 ppm, 

S = 220 ppm.

4 Iron and aluminum oxides.

'Calculated from reported MgCO, and (or) CaCOj.

6 Alkalies.

7 Not included in total.

8 CO,, calculated from repotted MgCOj and CaCOj.

Jco,.

110.47 percent in text.

u NatO = 225 ppm, K8O = 500 ppm, TiO| = 95 ppm, 

S = 110 ppm.

BWith sample 485 group Flf Na,O=290 ppm, KjO=530 ppm, 

TiO, = 130 ppm, S = 530 ppm.

B NatO = 250 ppm, KjO = 500 ppm, TiOj = 70 ppm, 

S = 245 ppm.
ANALYSES OF SAMPLES 201

Spectrochemical analyses

L The metallic elements not detected in the spectrochemical analysis: U2O.BeO,B2O,.KzO,ScjO3 ,V2O5 ,CoO,ZnO,Ga2O3 .GeO2 ,As2O3 ,Y2O3 ,ZrO2 ,Nb2 O5 ,MoO5,Ag2O.Ru,Rh,Pd. 

CdO,Ir^O3 ,SnO2 ,Sb4Oj.BaO,TeC)2 ,Cs2O.La2O3 .CeC)2,Pr2O2 ,Nd2O3 ,Sm2C)2,Eu2O3 ,Gd2O3 ,Tb2Os,Dy2O3 ,Hcp2Oj.Er2Oj,Tm2Oj.Yb2Oj,Lu2O3 ,HfO2 ,Ta2O5 ,WO3 ,Re2O7 ,Os,Ir,Pt,Au. 

2.PbO.Bi2O3 .ThO2.t

Na2 0 _______

Cr O»

MnO _______

NiO _______

CuO _____ .

SrO ________

1873

0.0036

. ____ .25

. ____ .0012

. ____ .007

1874

0.05

.02

.22

.0018

.011

1875

0.0056

.16

.0095

.0077

1879

0.013

.060

.001

.002

.0087

1880

0.014

.005

.13

.0015

.0074

1881

0.05

.02

.065

.0014

.008

1882

0.0052

.0005

.048

.0026

.0036

.0025

1900

0.0076

.11

.003

.0015

.014

1902

0.021

.00067

.16

.0018

.0020

.014

1903

0.017

.00055

.046

.001

.0027

.015

1904

0.0092

.0005

.044

.0015

.013

1905

0.05

.0032

.03

.001

.0012

.0072

1906

0.028

.00096

.12

.001

.0031

.0091

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

1873 - 1875. Whatcom County. Pennsylvania!! part of Chilliwack Group. South

center and SW? sec. 32. T. 37 N., R. 8 E., about 16 miles north of 

town of Concrete. Dock Butte Trail deposit. ( Danner, 1966, p. 16, 

19, 82, 259, 260, 262, 263, 453. 467.) Limestone, gray to lightgray, finely crystalline. Chip sample. Index and geologic maps. 

Possible use: None, deposit small.

1873. Sample W 28-1 taken across 100 ft.

1874. Sample W 28-2 taken across 230 ft.

1875. Sample W 28-3 taken across 200 ft.

1876-1878. Whatcom County. Early Pennsylvanian part of Chilliwack Group.

[T. 37 N., R. 7 E., unsurveyed.] Ridley Creek deposit. ( Danner, 

1966, p. 82, 209, 257-259.) Limestone, fossiliferous. Index and 

geologic maps. Possible use: Cement, deposit in remote area.

1876. Goodnews claim.

1877. Irene claim.

1878. Mazama No. 2 claim.

1879- 1881. Whatcom County. Early Pennsylvanian part of Chilliwack Group. 

NWjNWi sec. 13, T. 40 N. , R. 5 E., Red Mountain. Analyst, 

C. S. Homi; spectrochemical analyst, C. E. Harvey. ( Moen, 1962. 

p. 4, 8. 88, 96. 99, 119, pi. 1; Danner, 1966, p. 16. 19. 82, 210, 

220, 221, 452, 465.) General: Limestone, light-gray, crystalline, 

well-bedded, fossiliferous. Thin-section description. Chip sample. 

Tonnage estimated. Index and geologic maps, geologic sections. 

Possible use: Concrete aggregate, ballast, cement, road metal, 

riprap.

1879. Sample W 6-2 taken across 120 ft.

1880. Sample W 6-5 taken across 120 ft.

1881. Sample W 6-1 taken across 130 ft.

1882. County, age, group, analysts, maps, and use as in samples 1879-1881. 

SEi NEj sec. 21, T. 40 N., R. 5 E. Sumas Mountain deposit. 

Sample W 17-1. ( Moen. 1962. p. 4, 8, 16, 95, 97, 100. 119. pi. 1; 

Danner, 1966, p. 16, 19, 82, 209, 210, 231-233, 453. 466.) [Calcareous dolomite] limestone, buff and white mottled, mostly crystalline, fossiliferous. Chip sample taken across 80 ft.

1883 - 1899. Whatcom County. Early Pennsylvanian part of Chilliwack Group.

NE?SW? , NWiSEi , NE4 sec. 14, T. 40 N., R. 5 E.. about 3 miles 

northeast of town of Kendall, Red Mountain. Permauente Cement Co., 

upper quarry. ( Danner, 1966, p. 82, 209. 210, 213. 215, 216. 219.) 

Limestone, fossiliferous. Index and geologic maps. Former use: 

Hydrated lime. Use: Cement.

1883-1886. Analyst, E. J. Baldwin.

1887. (Burchard, 1912, p. 695, pi. 1; Shedd, 1913, p. 209- 

211, 212.) Limestone, light-gray; exposed thickness 

275 ft.

1888. Analyst. A. H. Cederberg. ( Landes. 1905 [1906],

p. 379; Burchard, 1912, p. 695. pi. 1.) Limestone, 

crystalline.

1889. Analyst, D. W. Riedle. (Landes, 1905 [1906], p. 379; 

Hodge, 1935c, p. j>9.) Limestone, crystalline.

Washington Continued

1890- 1899. ( Hodge, 1938d, p. 13, 26, 28-30, 33, 36, 38, 39, 40.) 

Limestone, light-gray, finely crystalline. Possible 

use: Flux.

1890. USED sample 187A.

1891. USED sample 185A.

1900, 1901. Whatcom County. Early Pennsylvanian part of Chilliwack Group.

SWiswi sec. 14, NWi NWi sec. 23, T. 40 N., R. 5 E., about 3 

miles northeast of Kendall, Red Mountain. Permanente Cement Co., 

lower quarry, abandoned. ( Danner, 1966, p. 16. 19, 82, 209. 210. 

213, 214, 216.J218, 219, 453, 467.) Limestone, gray, dense to 

crystalline, fossiliferous. Index and geologic maps, geologic sections. 

Former use: Hydrated lime.

1900. Analyst, C. S. Homi; spectrochemical analyst, C. E. Harvey. 

Sample W 24-5. ( Moen. 1962. p. 4, 8, 88-91, JJ9, 119. 

pi. 1.) Chip sample, composite. Possible use: Concrete 

aggregate, ballast, road metal, riprap.

1901. USED sample 189B. ( Hodge, 1938d, p. 13, 26, 28-30, 33, 

34.39.)

1902- 1911. Whatcom County. Sec. 4, T. 40 N., R. 6 E., north of town of Maple 

Falls. Black Mountain deposits. (Danner. 1966, p. 16, 19, 82. 209, 

210, 249-254, 255, 452, 465.) Limestone, fossiliferous. Tonnage 

estimated. Index and geologic maps, geologic sections. Possible use: 

Cement.

1902-1906. Analyst, C. S. Homi; spectrochemical analyst,

C. E. Harvey. (Moen, 1962, p. 4, 8, 16, 87-89, 92, 

96-^8,^00, 119, pi. 1.) Chip sample. Possible use: 

Concrete aggregate, ballast, road metal, riprap.

1902. Probably Early Pennsylvanian part of Chilliwack 

Group. NEj sec. 4. Sample W 7-4. Limestone, gray, massive, bedded; taken across 

300 ft.

1903. Probably Early Pennsylvanian part of Chilliwack 

Group. NEsSWi sec. 4. Sample W 7-5. 

Limestone, brown or gray, sugary; bed at 

least 200 ft thick. Thin-section description. 

Sample taken across 200 ft.

1904. Probably Early Pennsylvanian part of Chilliwack 

Group. NEisWi sec. 4. Sample W 7-6. 

Limestone, brown or gray, sugary; bed at 

least 200 ft thick. Thin-section description. 

Composite sample.

1905. Early Pennsylvanian part of Chilliwack Group.

SWi sec. 7. Sample W 1-2. Limestone, gray to 

brownish-gray, medium to coarsely crystalline, 

maximum thickness about 400 ft. Thin-section description. Sample taken across 320 ft.

1906. Early to middle Permian part of Chilliwack

Group. SEi sec. 4. Sample W 7-1. Limestone, crystalline, at least 50 ft thick; taken 

across 1,000 ft. 

1907 - 1911. Early to middle Permian part of Chilliwack Group. SE?

sec. 4. Analysts, sample 1907: T. H. Williams;

samples 1908-1911: E. J. Baldwin. Limestone,

brown to gray, dense to sugary.
202 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 10. Analyses of samples from Washington containing mete than 90 percent carbonate (Group F2), common-rock category Continued

Chemical analyses Continued

Washington Continued

SiOj _________

R»0, 

MgO _________

CaO ___ _

1912 1913 1914 1915

<*6F2 46F2 46F2 46F2 

37-141 37-139 37-140 37-126

__ _____ _____ _ ___ 1.72

__ _____ ____ _____ .94

__ ___ _ _____ _____ .25

__ 53.76 54.96 53.65 54.12

__ _____ _____ _____ 4 42.85

1916

4GF2 

37-147

1.97 

1.17 

.33 

52.95 

.010 

4 43.33

1917

46F2 

37-148

0.29 

.21 

.10 

54.61 

.006 

4 44.25

1918

46F2 

37-34

2.00 

'.66 

'.22 

3 53 fto

*42.47

1919

46F2 

37-123

1.42 

1.12 

.44 

54.11 

.244 

4 42.33

1920

46F2 

37-31

1.44 

*.92 

Trace 

54.36

43.17

1921

46F2 

37-128

7.81 

1.30 

1.03 

49.53 

.045 

4 40.12

1922

46F2 

37-129

5.82 

2.23 

.58 

50.61 

.029 

*40.12

1923

46F2 

37-124

2.43 

.71

53.71 

.056 

4 42.69

1924

46F2 

37-125

2.25 

.75 

.25 

54.02 

.009 

4 42.77

Total ______ [53.76] [54.96] [53.65] [99.89] [99.76] [99.47] [99.15] [99.66] 99.89

Class___________ 0.0,96 0.0,98 0,0,96 0,3,97 0,5,95 0,2,98 1.2,96 0,2,96 0,3,97

CaO/MgO________ Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite Calcite

[99.84] [99.39] [99.82] [100.05]

6,4,90 2,7.90 1,2,96 1,2,97

Calcite Calcite Calcite Calcite

'Alumina and iion.

^IjOj+Fe^.

'Calculated from reported MgCO, and (or) CaCO,.

4 Sample dried at 110°-112°C; ignition loss 1.000e-l,100°C. 

sCOj, calculated from reported MgCOs and CaCOs.

Spectrochemical analyses

[ The metallic elements not detected in the spectrochemical analysis: Li2O,BeO,B2O,,K,O,ScJO,,CoO,ZnO,Ga2O2,GeO2,AsjO,,Y2O,,ZrO,,Nb2Os,MoO,.Ag,O,Ru,Rh.Pd,CdO, 

Int^.SnC^.SbiOj.BaO.TeC^.CstO.LajOj.CeC^.^Oj.Nd^ 

PbO.BiiOj.ThOj.UOj]

Na20 ____________________ .

TiO. __ ____________ ____.

V-Oit

Cr20,__ _.

MnO __ ________________ .

NiO ______________________ .

CuO _____ __________ ____ .

SrO ___ _________________ .

1915

__________________________ 0.05

__________________________ .022

__________ ___ __________ .0005

 ___________ _ _____ ____ .072

__________ _______________ .0015

______ ________________ __ .0098

1916

0.14

.029

.0005

.027

.002

.022

1917

0.05

.012

.007

.0014

.022

1919

0.05

.0056

.019

.0005

.031

1921

0.05 

.035 

.0084

.0012 

.095 

.0018

.0036 

.035

1922

0.05 

.029

.00099 

.067 

.001

.0036 

.036

1923

0.05 

.018

.0005 

.18 

.001

.002 

.013

1924

0.05 

.020

.0005 

.13

.0018 

.011

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

1912- 1914. Whatcom County. Early to middle Permian part of Chilliwack Group. 

SEi sec. 4, T. 40 N., R. 6 E., north of town of Maple Falls. Black 

Mountain deposits. Analyst, E. J. Baldwin. ( Danner, 1966, p. 82, 

209, 210, 250, 252-254, 255.) Limestone, brown to gray, dense to 

sugary, fossiliferous. Tonnage estimated. Index and geologic maps, 

geologic sections. Possible use: Cement.

1915. Whatcom County. Devonian. NiSEi sec. 32, T. 40 N., R. 7 E. 

Church Mountain deposits, roadcut. Analyst, under supervision of 

Mark Adams; spectrochemical analyst, C. E. Harvey. Sample W 13-1. 

( Danner, 1966, p. 16, 19, 82, 247, 255, 256. 453, 465.) Limestone, 

gray, crystalline, thin-bedded, fossiliferous. Chip sample taken across 

12 ft. Index maps. Possible use: None, deposit small.

1916, 1917. Whatcom County. Holocene. Center sec. 33, T. 40 N., R. 7 E., abont 

2.6 miles east of town of Glacier. Church Mountain deposit. Analyst, 

under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. ( Danner, 1966, p. 16, 19. 82, 437, 438, 453, 465.) 

Tufa, brownish-yellow to buff, porous; maximum thickness about 2 ft. 

Chip sample. Index and geologic maps. Possible use: Agricultural, 

ornamental stone.

1916. Sample W 11-1 taken across 220 ft.

1917. Sample W 25-1 taken across 70 ft.

1918. Whatcom County. [T. 38 N., R. 3 E.], Balfour Station on Bellingham 

and Northern railroad. ( Shedd, 1913, p. ^17.) Limestone. Use: 

Portland cement.

1919. Whatcom County. Si sec. 34, T. 38 N., R. 9 E. Baker Lake deposit, 

roadcut. Analyst, under supervision of Mark Adams; spectrochemical

W ashington Continued

analyst, C. E. Harvey. Sample W 26-1. ( Danner, 1966, p. 16, 19, 

82, 256, j!57, 453, 467.) Limestone, gray, finely crystalline. Chip 

sample, composite. Index map. Possible nse: None, deposit small.

1920. Whatcom County. NEisWi sec. 23, T. 40 N., R. 5 E.. near town of

Kendall. Northwestern Portland Cement Co. Analyst, A. A. Hammer. 

Sample 120. ( Shedd, 1913, p. 209, 211, 212, 247. pi. 21; Danner, 

1966, p. 82, 210, 237, 238.) Limestone, gray, coarsely crystalline, 

some chert. Small tounage. Index and geologic maps. Possible use: 

Portland cement.

1921, 1922. Whatcom County. NWi SW$ sec. 7. T. 40 N., R. 6 E.. abont 3.5 

miles north of town of Maple Falls. Silver Lake deposit. Analyst, 

under supervision of Mark Adams; spectrochemical analyst, 

C. E. Harvey. ( Danner, 1966, p. 16, 19. 82, 223. 224. 225. 453. 

465.) Limestone, dense, fossiliferous; weathers dark gray to brownish 

gray. Thin-section description. Chip sample. Index and geologic 

maps. Possible use: Cement.

1921. Sample W 15-1 taken across 230 ft.

1922. Sample W 15-2 taken across 150 ft.

1923, 1924. Whatcom County. NiSEi sec. 32, T. 40 N., R. 7 E. Church Mountain 

deposits, roadcut. Analyst, nnder supervision of Mark Adams; spectrochemical analyst, C. E. Harvey. ( Danner, 1966, p. 16, 19, 82, 247, 

255, 256, 453, 465.) Limestone, gray, crystalline, thin-bedded; 

about 20 ft thick. Chip sample. Index maps. Possible use: None, 

deposit small.

1923. Sample W 12-1 taken across 20 ft.

1924. Sample W 12-2 taken across 385 ft.
ANALYSES OF SAMPLES 203

Table 11. Analyses of samples from Idaho. Oregon. and Washington, of clays in which (2.178 x AljOj) + HjO (however determined) is 50 percent or more of the

sample (Group Hk), special-rock category

[ Kaolin-like clays (kaolinite only,no "bauxite"). SiOj/AljOj weight ratio from 1.178 to 1.768; total iron < 30 percent. Chemical analyses arranged by

State, county, and stratigraphic position] 

Chemical analyses

Idaho

SiO, ____________

Al|Oi ___________

FP.D.

FeO _____________

MgO ___________

CaO _____________

Na,0_ ___________

HtO- ____________

TiO, ____________

P,05 ____________

SO, ____________

MnO, _______ __

Ignition loss___ _ _ _

Total _______

Class ____________

1 2

HHk29-32 HHk29-2

57.5 41.7 

40.9 24.0 

.5 17.3

.5 .20 

.4 1.74

3 an

2 9.50

[102] [98.2] 

0.92,0 0.77.4

3

HHk29-19

46.2 

35.7 

.1

.21 

.37 

.67 

.03 

*2.30

14.5

100.1 

0,89,1

4

HHk29-ll

44.93 

38.10 

.67 

.02 

.45 

.23 

.13 

.06 

*2.18 

1.09 

.02 

.02 

.01 

12.03

[99.94] 

0.84.1

5

llHk29-10

44.58 

37.42 

.95 

.06 

.71 

.24 

.12 

.18 

*2.25 

1.16 

.02 

.03 

.005 

12.20

[99.92] 

0.84,2

6

llHk29-14

45.0 

32.1 

7.9

.51 

Trace

.05

1.0

15.1

[101.7] 

0,87,1

7

HHk29-15

52.2 

30.3 

4.0

.36 

Trace

14.3

[101.2] 

0.97,1

8

HHk29-48

48.5 

29.6 

5.5

4.1

410.2

[97.9] 

0,88.0

9

HHk29-39

42.1 

30.4 

10.1

5.6

*11.0

[99.2] 

0,79.0

10

llHk29-50

47.4 

33.9 

3.7

2.0

*11.9

[98.9] 

0.87.0

11

llHk29-31

46.13 

37.36 

2.20

.64 

.65

> Trace 

3 1.34

*12.20

100.52 

0.85.2

12

HHk29-29

53.2 

35.2 

1.16

1.5 

1.5

[92.6] 

0.91.0

13

HHk29-26

53.9 

34.4 

.9

.4

.2

10.2

[100.0] 

0.94.1

'Below 100"C.

*At 105"C.

'Sample air dried, moisture at 110°C.

4 At 950aC.

'Combined water, ignition.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Idaho Continued

1. Latah County. Miocene. [T. 39 N., R. 2 W.], 6 miles east of town of Troy. 

Sample 33. ( Skeels, 1920, p. 44, 45.) Clay, white, fine-grained; 24 ft 

thick, overburden 1 ft. Physical properties, firing tests. Possible use: 

Refractories.

2. Latah County. Miocene. T. 39 N., R. 3 W., near Troy, old Kendrick road. 

( Hubbard, 1956a, p. 19, pis. 1, 2.) Clay. Index and geologic maps.

3. Utah County. Miocene. [T. 39 N., R. 3 W.], near Troy. Analyst,

R. V. Lundquist. Sample 1. ( Tullis and Laney, 1933, p. 485-493, 495.) 

Clay. Index map. Microscopic examination. Use: Face brick, firebrick, 

terra cotta, sewer pipe, stoneware, draintile, roofing tile, structural tile.

4, 5. Latah County. Middle and late Miocene, Latah Formation. NE? NWi sec. 16, 

T. 40 N., R. 1 W., 0.5 mile north of town of Helmer. A. P. Green Co. 

( Ponder and Keller, 1960, p. 44, 45, 47, 48, 50. 51, 53-J57, 58.) Mineralogy. Index and geologic map. Microscopic description, size distribution 

analyses, chemical analyses recalculated to relative number of cations, 

allophane content of clay samples. Possible use: Fireclay.

4. Sample AD-1. Clay, white, speckled; contains brown silt-size particles.

5. Sample SC-1. Clay, giyiy to very light brown, extremely fine grained, 

plastic; contains very little silt; from bed 8-12 ft thick.

6. Latah County. Miocene. Sec. 6, T. 40 N., R. 2 W., 1 mile northwest of town 

of Vassar, railroad cut. ( Hubbard, 1956a, p. 21, pis. 1, 2, 5.) Clay, 

maximum thickness 12 ft, overburden 8 ft. Index and geologic maps.

7. LatahCounty. [Latah Formation.] Sec. 23, T. 40 N., R. 2 W., 0.5 mile 

east of town of Deary, railroad cut. ( Hubbard, 1956a, p. 20, 21, pis. 1, 

2,5.) Composite sample. Lower bed: Clay, creamy -gray, 6 ft thick; 

upper bed: Clay, yellow, sandy, 4 ft thick. Index and geologic maps.

8-10. Latah County. Miocene. About 3 miles southwest of Deary. ( Hosterman 

and others, I960, p. 1-4, 12, 13, 15, 20, 29, 37, 101, 111, pis. 1, 2, 

6.) Overburden averages 15.9 ft. Mineralogy. Bulk density averages 

1.64. Tonnage estimated. Index and geologic maps, geologic sections, 

correlated columnar sections. Log of drill hole. Weighted composite 

sample; samples taken at about 5-ft intervals or where clay showed a marked 

change. Possible use: Source of alumina, gallium, ilmenite.

8. SWl sec. 19, T. 40 N., R. 2 W. Drill hole Ol-163. Clay, varicolored; depth 18.7-27.0 ft.

9. NEi sec. 24, T. 40 N., R. 3 W. Drill hole O1-207. Clay, blue and 

yellow; depth 10.5-37.8 ft.

10. SE? sec. 25. T. 40 N., R. 3 W. Drill hole Ol-173. Clay, varicolored; depth 7.5-20.1 ft.

11. Latah County. Latah Formation. [Sec. 31, T. 42 N., R. 4 W.], near town 

of Potlatch. Analyst, W. R. Bloor. Sample 92. ( Shedd, 1910, p. 222. 

223. 224, 307, 320, 321.) Clay, white, plastic; 15 ft thick; overburden 

8-10 ft. Microscopic description. Use: Stoneware.

12. Latah County. [Latah Formation. T. 42 N., R. 4 W.], 0.5 mile north of 

town of Onaway. Sample 55. (Skeels, 1920. p. 55. 56.) Clay, white, 

fine-grained; at least 20 ft thick. Physical properties, firing tests. Use: 

Terra cotta, crude pottery, refractories. Possible use: Face brick, 

building tile.

13. Latah County. [Sec. 6, T. 40 N., R. 2 W.], near Stanford station, railroad 

cut. Sample 23. (Skeels, 1920, p. 38, 40.) Clay, white, brown, finegrained; contains mica. Geologic section, columnar section. Physical 

properties, firing tests. Possible use: Structural ware.
204 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

sample (Group Hk) , special-rock category Continued

SiO2 _________

A1203 ________

Fe2 03 _ _________

Na2O _____ _____

K20 ___ __ _____

LI /~\.

P205 __ 

C02 

V.j05 ____________

Zr02 __ _______

Ignition loss ____ ___

27

36Hk20-5

SiO2 _____ 50.91

A12O, ____ 33.67

Fe2O, __ _ .50

CaO _____ None

Na2O ____ None

K2O ___ _ None

H2O+ __ _ 4 11.97

HjO- ____ 5 .61

TiO2 _ ___ 1.99

P205 _____

C02 _ ____ _ _

V205 _____

AszO, _ _

Ck C

WO3 _ _ _ _ _

Hg__ _

Organic matter .16 

Ignition loss _ _ ___

Total. 99-81 

Class __ _ 0.93.0

14

36Hk3-l

43.52 

36.72 

5.10 

.21 

.65

'.66

13.10

99.96 

0,82,2

28

36Hk20-16

51.2 

30.4 

3.6 

.0 

.2 

.2 

.1

2.4 

.25

.7

<.05

.27 

.0 

.08

.0 

.0

".1

a 11.8

M [101.3] 

0,93,1

15

36Hk3-5

43.74 

31.72 

7.85 

.42 

3.60

'.27

12.61

100.21 

0,80,7

29

36Hk20-8

46.98 

39.86 

.46 

.19 

.47

8 .17

12.46

100.59 

0,86,1

16 17

36Hk3-35 36Hk3-7

44.98 45.86 

33.09 38.78 

3.03 2.79 

.5 .24 

.44 .70

5 3.26 _ _

1.92 8 .21

12.73 12.40

[100.0] 100.98 

0,86,2 0,84,2

30 31

36Hk20-ll 36Hk20-12

48.40 49.68 

39.20 38.42 

.74 .56 

.22 .15 

.50 .44

8 .19 8 .13

10.92 11.18

100.17 100.56 

0,86,1 0,89.1

Chemical

18

36Hk3-13

43.6 

30.2 

10.3 

.3 

.3 

.1 

<.05

1.8 

.19

7(1.32) 

<.05 

<.05 

<-05 

'( -33) 

»12.6

99.6 

0,82,2

Oreg

32

36Hk20-10

47.20 

39.82 

.47 

.16 

.43

 .25

12.40

100.73 

0,86,1

analyses Continued

Oregon

19

36Hk3-14

45.5 

27.8 

11.5 

.4 

.3 

.4 

<.05

1.8 

.13

7 (1.43) 

<.05 

<.05 

<.05 

'(.43) 

10 11. 8

99.8 

0,84,2

20

36Hk3-17

46.09 

37.55

.07 

.44

13.61

100.27 

0,86,1

21 22

36Hk3-18 36Hk3-16

54.17 44.40 

31.13 36.60

'4.42 h.ge

.13 .11 

.50 .36

) ' 41

".09

10.39 16.20

100 . 74 100 . 13 

0,96,1, 0,86,1

23 24

36Hk3-9 36Hk5-8

46.1 51.22 

30.1 31.34 

9.6 2.92

.4

_____ .00

_ __ 5 1.20

1.6 1.82

11.8 12.02

100.0 100.9 

0,86.0 0,94,1

25

36Hk5-56

42.11 

24.77 

2 19. 43 

.13 

.10

'.25 

2 .66

".020

12.85

[100.32] 

0,83,0

26

36Hk20-3

33.45 

.81 

None 

None 

f None 

V None

5 !ei

1.92

.31

100.01 

0,93,0

on Continued

33

36Hk20-7

46.3 

35.7 

.3 

.3 

.3 

1.4

None

13.4

[97.7] 

0,85,1

34

36Hk20-24

49.58 

34.53 

.29 

.7 

.00

5 .41 

2.80

12.57

100.9 

0,90.1

35 35a

36Hk20-13 36Hk20-15

50.12 62.06 

35.43 27.44 

2.23 1.48 

.15 .17 

.37 .40

*.22 *.22

11.52 8.83

100.04 100.60 

0,90.1 12,87,1

Oregon Continued

SiOz _ __

A120, __

Fe20, __ __ __

MgO _

CaO _ _ ___ __

NazO

K2O

TiO

Ignition loss

Total

Class

40

36Hk24-9

43.20 

36.12 

4.46 

.37 

.41

.43 

15.02

100.01 

0,83,2

41

36Hk24-ll

44.88 

34.71 

7.71 

.28

.23

.28 

12.74

100.83 

0,84,1

42 43

36Hk24-83 36Hk24-84

46.2 45.20 

32.3 36.96 

3.8 3.43 

( B) .31 

( B) - 79

__ .16

12.4 13.13

96.6 99.98 

0,86,0 0,84,2

44

36Hk24-5

46.58 

35.87 

5.06 

.28 

.76

.10 

11.78

100.43 

0,85,2

45

36Hk24-10

44.80 

37.95 

3.62 

.18 

.42

.29 

13.10

100.36 

0,84,1

46

36Hk24-6

46.04 

33.89 

7.34 

.27 

.64

.33 

11.95

100.46 

0,85,2

47 48

36Hk24-76 36Hk24-8

47.46 45.11 

33.70 32.71 

'4.52 J 7.72 

.11 .18 

1.07 .33

12.87 13.80

99.73 99.85 

0.88,2 0,86,1

36 37

36Hk20-22 36Hk20-4

38.22 53.15 

31.78 31.34 

J17.36 h.08 

.40 _ _ _

.77 .23

_____ 2.25

_ _ .19

11.19 11.53

99.72 99.77 

0,73,2 0,95,0

38

36Hk24-50

35.03 

29.60 

2 18. 23

4.07

U 15.23

[102.16] 

0,73,0

39

36Hk24-4

51.72 

31.08 

2.87 

.66 

.47

'.14

12.46

99.40 

0,93,2

Washington

49 50

46Hk4-3 46Hk4-4

51.26 44.80 

32.65 37.35 

.61 .41 

.21 .09 

.50 .58

V .55 1.29

"14.22 B15.48

100.00 100.00 

0,94,1 0,85,1

51

46Hk4-2

48.20 

34.79 

.61 

.12 

.56

1.07

B14.65

100.00 

0,90,1

52

46Hk4-l

44.13 

32.46 

'4.45 

.31 

.71

18.08

100 . 14 

0,88,2

Includes FeO.

2 Calculated from reported Fe,P, or Mn. 

3 Mainly alkalies and alkaline earth, by 

difference.

4 Above 110°C.

5 At 110°C.

*TiO.

7 Not included in total.

8 S.

'Organic C, not included in total.

10 At 950°C 

"Organic C.

12 At 950°Cj ignition loss at 

700° C = 11.5 percent.

0 At 1.0000-1,100°C. sample air dried.

"Sample dried at 130°C.

15 Minor amounts of lime and magnesia.

16 Reported as soda.

"Combined water, ignition.
ANALYSES OF SAMPLES 205

DESCRIPTIVE NOTES

[ Underscored page numbers in reference indicate source of analysis]

Oregon Oregon Continued

Mineralogy, thermal analysis curve.

35,35a. Lane County. Probably post-middle Miocene. NWi sec. 16, T. 23 S.,

R. 3 W., about 18 miles south of Cottage Grove. ( Wilson and Treasher, 

1938, p. 19, 24, 70, 75-78, JJ4, 92.) Index maps. Firing tests. Possible 

use: Probably none.

35. Field No. 36 A. Clay, tan, plastic.

35a. Field No. 36 H 3. Clay, bluish-gray matrix mottled with white 

inclusions.

14, 15. Clackamas County. Probably post-middle Miocene. ( Wilson and Treasher, 

1938, p. 19, 24, 31, 41-46. 84-86, 88, 89.) Index maps. Firing tests.

14. SE?SE* sec. 15, T. 5 S., R. 2 E., 2.4 miles southeast of town of 

Molalla. Robbins property. Field No. 7. Clay, gray, compact; 

weathers brown; some iron stain, conchoidal fracture; estimated 

thickness 25 ft; overburden. Possible use: Probably none.

15. NEi NE* sec. 27, T. 5 S., R. 2 E.. 4.3 miles by road southeast of 

Molalla. Ellis property. Auger hole A. Field No. 6 D 28. Fire 

clay, bluish-gray to purplish-green; weathers brown; 23.5 ft from 

top of clay; overburden more than 70 ft. Mineralogy. Tonnage 

estimated. Detailed measured sections. Physical properties. 

Possible use: Refractories.

16. Clackamas County. [Probably post-middle Miocene. T. 5S..R. 2E.,

near] Molalla. Analyst. H. R. Shell. ( Speil and others, 1945, p. 31. JJ2.) 

Kaolin. Mineralogy, thermal analysis curve.

17. Clackamas County. Probably post-middle Miocene. SEiSE* sec. 1, T. 6S., 

R. 2 E., more than 10 miles by road southeast of Molalla. Dibble property. 

Field No. 8 A. ( Wilson and Treasher. 1938, p. 19, 24. 42, 46. 47. 84- 

86, 89.) Clay, light-bluish-gray, smooth, not gritty, compact, conchoidal 

fracture; overburden. Index maps, physical properties, firing tests. Possible 

use: Refractories.

18, 19. Clackamas County. Pliocene, Molalla Formation. Sees. 15, 16, 21, 22, 27, 

28, T. S S., R. 2 E., southeast of Molalla. ( Oregon Dept. Geology and 

Mineral Industries, 1951, p. 18, _19, 20, fig. 1.) Clay, analysis of composite sample. Mineralogy. Tonnage estimated. Index map.

18. From lower clay series which averages about 55 ft thick.

19. From upper clay series which ranges from 20 to 133 ft in thickness.

20. Clackamas County. Pliocene or Pleistocene. SEiSEi sec. 1, T. 6S.,

R. 2 E., near Molalla. Dibble pit. Sample 4. ( Hodge, 1938f, p. 817, 

851, 853.) Clay. Index map, detailed measured section. Former use: 

Pottery.

21, 22. Clackamas County. Pliocene or Pleistocene. Sec. 1, T. 6S., R. 2E.,

near Molalla. Samples 5, 6. ( Hodge, 1938f, p. 817, 851-853.) General:

Material varies from fine, blue, plastic clay to coarse, kaolinitic,

weathered gravels. Clay depth 200 ft. Index map. Possible use:

Refractories.

22. Analyst, Laze 11.

23. Clackamas County. [Sec. 1, T. 6S., R. 2E.. near] Molalla. Analyst, 

Anthony Centenero; collector, R. L. Nichols. Sample M-3. ( Pask and 

Davies, 1943, p. 3, 10, 20, 22, 23, 25; Pask and Davies, 1945, p. 57, 

62.73,^74,76.78.) Clay. Mineralogy. Thermal analysis curve. 

Possible use: Source of alumina.

24. Columbia County. [Post-middle Miocene. NE« sec. 33, T. 8N., T. 3 W., 

6 miles west of town of Rainier.] Fransen. Analyst, H. R. Shell. ( Speil 

and others, 1945, p. 31,32.) Kaolin. Mineralogy, thermal analysis curve.

25. Columbia County. [T. 4 N., R. 3 W.] Pearson location. ( Hodge, 1935b, 

p. 18.) [Iron-bearing rock.]

26-28. Lane County. Late Eocene and Oligocene, Calapooya Formation. Sec. 31, 

T. 22 S., R. 3 W., about 16 miles south of town of Cottage Grove, Hobart 

Butte. Willamma Clay Products Co. quarry. (Alien, 1946, p. 129, 131, 

132, 133; Alien and others, 1951, p. 1-5, 7, 9, pis. 1, 2, fig. 1.) Clay. 

Deposit up to 204 ft thick; overburden up to 130 ft thick. Mineralogy. 

Index and geologic maps, geologic sections, generalized columnar section. 

Photomicrograph. Use: Refractories. Possible use: Source of alumina. 

26. Analyst, W. W. Brannock. Sample 16G. 

W. Analyst, W. W. Brannock. Sample 16W.

28. Sec. 31, T. 22 S., R. 3 W. and sec. 3C, T. 22 S., R. 4 W. Composite sample.

29-33. Lane County. Probably post-middle Miocene. SWt sec. 31, T. 22 S.,

R. 4 W., about 16 miles south of Cottage Grove, Hobart Butte. Willamina 

Clay Products Co. quarry. ( Wilson and Treasher, 1938, p. 19, 24, 37, 

69. 10. 13, 74, 84-86, 92.) Clay. Average bulk density 2.4. Tonnage 

estimated. Index maps, measured section. Physical properties, firing 

tests. Possible use: Paint and paper filler, refractories, whiteware.

29. Fk-ld No. 35 C 1.

30. Field No. 35 C 2.

31. Field No. 35 G.

32. Field No. 35 1 1.

34. Lane County. [Probably post-middle Miocene. SWi sec. 31, T. 22 S.,

R. 4 W., about 16 miles south of Cottage Grove.] Hobart Butte. Analyst, 

H. R. Shell. ( Speil and others, 1945, p. 30-JJ2.) Kaolin, siliceous.

36. LaneCounty. SWiSE? sec. 1, T. 18 S., R. 4 W., about 2.6 miles south of 

town of Eugene. Stevens property. Sample 2. ( Hodge, 1938f, p. 817, 

871, 872, 887.) Red ocher clay, uniformly dense. Index map. Firing 

tests. Use: Mineral paint, black porcelain.

37. Lane County. SWi sec. 31, T. 22 S., R. 3 W., about 14 miles south of 

Cottage Grove. Hobart Butte Mining Association. Samples. (Hodge, 

1938f. p. 817, 876, 877, 881-883.^87.) Clay, white to light-gray. 

Channel sample. Tonnage estimated. Index maps. Firing tests. Use: 

Refractories.

38. Marion County. Miocene and Pliocene. NWj sec. 28. T. 8 S., R. 3 W., 

about 5 miles south of town of Salem, roadcut. Analyst, L. L. Hoagland. 

Sample P-3567. ( Libbey, Lowry, and Mason, 1945, p. 4, 5, 72, 74, 

76, 77, 85, 87, 88.) [Ferruginous bauxite] laterized basalt, red and gray, 

soft; 1.5-ft channel sample. Overburden. Index maps. Possible use: 

Abrasives, cement, aluminum chemicals, oil refining, refractories.

39. Marion County. Probably post-middle Miocene. SEiSWj sec. 25, T. 7S., 

R. 1 W., 6 miles south of town of Silverton, roadcut. Field No. 20. 

( WUson and Treasher, 1938, p. 19, 24, 50, 60, j?4, 91.) Clay, ironstained, fine-grained, somewhat plastic; overburden. Index maps. Firing 

tests.

40-46. Marion County. Probably post-middle Miocene. T. 8 S., R. IE., King 

area. Tonnage estimated. Index maps. Firing tests. Possible use: 

Non-plastic refractories.

40. SWiSWi sec. 3, west of Silver Creek Falls, roadcut. Field No. 

18. ( Wilson and Treasher, 1938. p. 19, 24, 50, 59, 84, 90.) 

Clay, tan-gray, oolitic.

41. South line of SW»SEi sec. 13. Field No. 15. ( Wilson and

Treasher, 1938, p. 19, 24, 50, 56, 57, 84, 90.) Clay, graybrown; 4.5 ft thick, overburden 3.5 ft. Auger-drill hole. 

Detailed measured section.

42,43. SWjSE* sec. 18, few miles northeast of town of Sublimity. King 

property. General: Clay, white, fine-grained; tuff overburden. 

Detailed measured sections. Physical properties.

42. Channel sample 11. ( Wilson and Treasher, 1938, p. 19, 

24, 49-51, 52. 53. 85. 86. 90.) Clay, white, soft, 

compact.

43. Field No. 11. ( Wilson and Treasher. 1938, p. 19, 24, 

49-53. 84-86, 89.)

44. NW? sec. 19. Fiefd No. 14. ( Wilson and Treasher, 1938. p. 19, 

24, 50, 55-57, 84, 90.) Clay, white; overburden. Augerdrill hole. Detailed measured section.

45. NEiNEl sec. 21. Field No. 16. ( Wilson and Treasher, 1938, 

p. 19, 24, 50, 56, 84, 90.) Clay, white, soft, compact; 

contains dark inclusions; overburden.

46. NWiSE* sec. 21. Field No. 17. ( Wilson and Treasher, 1938, 

p. 19, 24, 50, 56, 57, 59, 84, 90.) Clay, overburden 25 ft 

of tuff. Detailed measured section.

47. Marion County. [T. 8 S., R. 1 E.], near town of Silverton, above lower 

falls on Silver Creek. Sample 1. ( Hodge, 1938f, p. 817, 864, 867.) 

Fire clay, white, upper part stained pink and yellow; about 16 ft thick. 

Index map.

48. Marion County. [T. 8S., R. 1W.], 4 miles northeast of Sublimity.

Sample 4. ( Hodge, 1938f, p. 817, 862, 867.) Fire clay, white; at least 

8 ft thick; overburden few inches to 2 ft thick. Index map. Firing tests.

Washington

49-51. Chelan County. Late Cretaceous and Paleocene, Swauk Formation. NWi 

sec. 27. T. 22 N.. R. 20 E., 3-4 miles south of town of Wenatchee. 

N. W. L. Brown prospect. Analyses 8-10. ( Glover, 1941. p. 62, 336, 

342, 343.) Shale, dark-gray-brown, nonplastic; thick beds interstratified 

with sandstone. Firing tests. Possible use: Refractories.

52. Chelan County. SW corner sec. 22, T. 22 N., R. 20 E., southwest of

Wenatchee. Brown pit. ( Hodge, 1938e, p. 706, 707.) Fire clay. 6 ft 

thick. Detailed measured section. Firing tests.

487-187 O - 73 - 14
206 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

sample (Group Hk) , special-rock category Continued

Chemical analyses Continued

Washington Continued

SiO, _______

Al,0, ______

Fe,0, ______

MgO ______

Nap ______

TiO, ______

P.O.

CO, ______

so, ______

Zr,0, ______

V,0S ______

Ignition loss *

Ignition loss ' _

Total __

Class ______

53

46HR8-56

_____ 36.9

_____ 31.2

_____ 8.3

_____ 2.3

 (20.1)

_____ [99.5]

_____ 0.80.0

54

46Hk8-9

43.9 

31.8 

5.7

2.1

15.3 

(14.8)

[98.8] 

0.85,0

55

46HK8-8

42.8 

32.3 

7.9

2.0

14.1 

(13.6)

[99.1] 

0,83.0

56

46Hk8-10

44.1 

28.9 

4.1

2.3

19.0 

(18.3)

[98.4] 

0.99.0

57 58

46Hk8-ll 46Hk8-7

44.1 47.2 

28.2 27.0 

9.6 8.0

2.1 2.0

17.2 12.8 

(16.3) (12.1)

[101.2] [97.0] 

0.89.0 0.89.0

59

46HR8-39

36.6 

29.3 

8.4

2.1

21.7 

(21.1)

[98.1] 

0.81.0

60

46HR8-41

41.3 

30.7 

9.8

2.2

14.0 

(13.5)

[98.0] 

0.81.0

61

46Hk8-51

46.3 

28.6 

10.7

2.0

11.0 

(10.2)

[98.6] 

0.86.0

62

46Hk8-52

41.7 

30.3 

11.3

2.5

12.9 

(12.5)

[98.7] 

0.81.0

63

46HR8-53

41.7 

31.1 

11.7

2.0

12.3 

(12.2)

[98.8] 

0.80.0

64 65

46Hk8-50 46HR8-55

42.8 38.1 

31.0 31.3 

10.6 6.5 

.2 ___ _

.3 ______

.1 ______

< .05 ______

2.2 2.3

.29 ______

'(.74) ______

.28 ______

< .05 ______

< .05

'(.39) ______

12.2 20.6 

(11.7) (19.8)

100.1 [98.8] 

0.81.1 0.82.0

Washington Continued

SiO, _ _____

Alp, ______

Fe,0, ______

MgO _ ____

CaO _______

Na,O ______

K,0 _______

TiO, ______

PPS ______

CO, ______

so, _______

Zr,0, ______

V,0, ______

BeO _______

Ignition loss s

Total _

Class ______

66

46HK8-58

_____ 37.9

_____ 31.2

_____ 7.0

_____ 2.1

 *20.5

 (19.8)

______ [98.7]

_____ 0.81,0

67

46HK8-60

40.6 

29.2 

6.2

2.0

*20.5 

(19.8)

[98.5] 

0,86,0

68

46HK8-61

48.3 

30.5 

4.9

2.3

(11.6)

[98.1] 

0,89,0

69

46HK8-62

40.6 

31.1 

8.0

2.1

*17.1 

(16.2)

[98.9] 

0,83,0

70 71

46Hk8-20 46Hk8-27

41.0 37.4 

28.6 22.6 

9.8 21.6

2.4 ______

*16.4 414.2 

(16.3) ______

[98.2] [95.8] 

0,83.0 0.77,0

72

46HK8-33

39.7 

32.0 

7.5

2.0

*17.4 

(16.8)

[98.6] 

0,81,0

73

46HR8-34

39.8 

32.5 

10.4

2.0

*14.2 

(14.0)

[98.9] 

0,79,0

74

46HR8-35

40.3 

31.9 

6.2

2.4

*18.2 

(17.9)

[99.0] 

0,83.0

75

46HK8-38

37.4 

30.4 

9.8

2.1

*18.0 

(17.6)

[97.7] 

0,79,0

76

46HR8-54

39.6 

30.4 

7.0 

<.05

.6 

.1 

.2 

2.0 

.28 

'(2.23) 

.26

<.05

<.05

'(4.23) 

*19.0 

(18.0)

99.6 

0,79,3

77 78

46HR8-14 46HK8-13

41.09 38.80 

31.07 32.03 

5.71 6.12

2.10 2.13

.20 ______

*17.86 *20.41

[98.03] [99.49] 

0,84.0 0,83,0

Washington Continued

SiO, _ _

Al,0, _ _____

Fe,0, ______

MgO ______

CaO __ _

Na,O ______

K,0_ _____

H,0 ___ __

TiO, _

S

CaSO4 _

V,0, .

Ignition loss

Total

79

46Hk9-l

_____ 51.97

_____ 30.96

_____ *4.44

_____ .72

_____ .30

. ____ 11.74

100.13

Class ___________ 0,93,2

80

46Hk9-5

46.67 

35.84 

3.61 

Trace 

.62

"13.25

99.99 

0,87,1

81

46Hkl7-40

57.50 

34.37 

T1.24 

1.00 

.50

) '.68 

4.71

100.00 

0.95,0

82

46Hk29-70

49.73 

32.57 

71.52 

1.28 

.42 

f 1.10 

1 .00 

12.38

.47

 .10

* 100. 00 

0,91,0

'Not included in total. 

*At 950°C. Sample dried at 130«C. 

JAt700°C. Not included in total. 

4 At 800°C. Sample dried at 130"C.

83 84

46HR32-18 46HR32-21

39.7 49.5 

28.2 28.4 

13.4 5.4

6.9 4.8

"10.6 "9.3

[98.8] [97.4] 

0,76,0 0.89.0

*At 1,000'C. 

' Includes FeO. 

7 Iron oxide. 

'Alkalies.

85

46HR32-32

43.5 

30.9 

5.3

7.5

"11.3

[98.5] 

0,81,0

86

46HR32-33

40.5 

32.4 

7.1

7.8

"11.4

[99.2] 

0,76.0

87 88

46HK32-34 46HR32-36

39.2 

29.6 

10.4

8.3

"11.0

[98.5] 

0,75.0

40.0 

32.2 

9.1

6.3

"11.3

[98.9] 

0,76,0

89 90 91

46Hk32-37 46HK32-38 46Hk32-57

43.1 

30.2 

9.0

5.0

"11.6

[98.9] 

0,81,0

39.9 41.2 

29.2 31.1 

11.5 8.2 

_____ .0

_____ 1.0

_____ .4

.3

6.3 7.3

"10.4 11.1

[97.3] 100.6 

0,75,0 0.77,2

'Reported as sulph. lime, 

"volatile.

°Carb. lime = 0.43 percent.
ANALYSES OF SAMPLES 207

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

W a shington Con tinued

53-78. Cowlitz County. Tertiary. T. ION., R. 1 W., about 6.5 miles northeast of 

town of Castle Rock. Cowlitz deposit. ( Popoff, 1955, p. 1-5, 7, 9, ^0-16, 

18. 19, 21-25. JJ1. 37-40, 44. 46-57.) Mineralogy. Tonnage estimated. 

Index and geologic maps, geologic sections. Log of drill hole. Use: 

Refractories. Possible use: Source of alumina.

53. SEi sec. 7. Drill hole 48. Clay, red-brown and green-blue, 

semiplastic; more than 40 ft thick; overburden; depth 9.7- 

46.4ft.

54-57. Clay, blue-gray, lignitic; ranges up to 70 ft in thickness.

54. SEi sec. 9. Drill hole 45, depth 14.2-41.5 ft.

55. NEi sec. 16. Drill hole 27, depth 12.9-45.3 ft.

56. NEi sec. 16. Drill hole 47. depth 49.0-66.7 ft.

57. NEi sec. 16. Drill hole 49, depth 39.7-77.9 ft.

58. NEi sec. 16. Drill hole 14. Clay, gray; contains lignite. Depth 

2.5-41.8 ft.

59, 60. SWi sec. 17. Lower portion: Clay, blue-gray and gray, semiflint, fine, dense; contains clay pellets, siderite oolites and 

concretions? 12-20 ft thick. Upper portion: Clay, gray or 

nearly black; contains lignite seams, overburden.

59. Drill hole 36. depth 44.3- 92.4 ft.

60. Drill hole 39, depth 3.6-31.2 ft.

61- 69. Clay, red-brown and green-blue, semiplastic; more than 40 ft 

thick, overburden.

61. NWi sec. 17. Drill hole 13. depth 23.0-53.0 ft.

62. NWi sec. 17. Drill hole 42, depth 28.9-70.9 ft.

63. NWi sec. 17. Drill hole 44, depth 14.0-39.3 ft.

64. NWi sec. 17. Drill holes 13, 42, 44, composite sample.

65. NEi sec. 18. Drill hole 46, depth 48.4-103.4 ft.

66. NEi sec. 18. Drill hole 52. depth 24.5-53.5 ft.

67. NEi sec. 18. Drill hole 54, depth 72.0-119.2 ft.

68. NEi sec. 18. Drill hole 58, depth 6.3-28.9 ft.

69. NEi sec. 18. Drill hole 59, depth 1.5-68.7 ft.

70-75. SEi sec. 18. Lower portion: Clay, blue-gray and gray, semiflint, dense, fine; contains clay pellets, siderite oolites and 

concretions; 12-20 ft thick. Upper portion: Clay, gray or 

nearly black; contains lignite seams; overburden.

70. Drillhole 4. depth 15.7-82.0 ft. Composite sample. [For 

other analyses from same drill hole, see sample 133, 

group D; samples 53-61, group Ha.]

71. Drill hole 4. Clay, limonitic with concretions; depth 

26.0-29.7 ft.

W ashington Continued

73. Drill hole 7, depth 3.0-29.4 ft.

74. Drill hole 11, depth 24.6-62.0 ft.

75. Drill hole 35. depth 2.5- 55.9 ft.

76. SEi sec. 7, NEi sec. 18. Drill holes 46, 48, 50, 52-54, 58, 59. 

Clay, red-brown and green-blue, semiplastic; more than 40 ft 

thick, overburden. Composite sample.

77, 78. On boundary SWi sec. 17, NWi sec. 20. Clay, gray, lignitic.

79. Douglas County. Late Cretaceous and Paleocene, Swauk Formation. Sec. 23, 

T. 23 N., R. 20 E., about 4 miles north of town of Wenatchee. Keegan 

pit. ( Hodge, 1938e, p. 694, 698, 699, 704. 705.) Clay, channel 

sample. Index maps. Use: Probably none.

80. Douglas County. Eocene. [T. 22 N., R. 20 E.], near town of East

Wenatchee. Gladding, McBean, and Co. mine. ( Landes, 1934, p. 1069, 

1074. 1076.) Clay, dark; 24 ft thick; overburden 10-20 ft. Firing test. 

Use: Firebrick.

81. King County. [T. 21 N., R. 6 E.], town of Kummer. Black Diamond clay 

mine. Analyst, G. A. Bethune. ( Bethune, 1891, p. 106; Glover, 1941, 

p. 344, 345.) Clay. Firing tests. Possible use: Refractories.

82. Skagit County. Tertiary. [T. 35 N., R. 6 E.] Cumberland Co., Conner

mines. Analyst, G. A. Bethune. (Bethune, 1891, p. 106. 101; Wheeler. 

1896, p. 595; Glover, 1941. p. 348, 349.) Clay. Firing test. Possible 

use: Refractories.

83- 91. Spokane County. Miocene. T. 24 N., R. 44 E., about 11 miles southeast 

of town of Spokane. ( Hosterman and others, I960, p. 1-4, 12, 13-15. 

20, 25, 26, 37, 40, 42, 55-57, 60, 61. pi. 3.) Mineralogy. Average 

bulk density 1.64. Overburden averages 21.4 ft. Tonnage estimated. 

Index and geologic maps, geologic sections. Log of drill hole. Weighted 

composite sample; samples taken at about 5 - ft intervals or where clay 

showed marked change. Possible use: Source of alumina, gallium, 

ilmenite.

83. On line SEi sec. 20, SWi sec. 21. Drill hole E-2. Clay, varicolored; some iron stain; depth 58.0-80.0 ft.

84. SWi sec. 21. Drill hole E-10. Upper part: Clay, blue and blue-gray. 

Lower part: Semidecomposed basalt, gray; iron stain. Depth 

48.0-63. Oft.

85. NEi sec. 22. Drill hole M-42. Clay, mostly blue and blue-gray, 

some brown; some yellow tuffa'ceous clay; depth 3.0-49.0 ft.

86. NEi sec. 22. Drill hole M-44. Clay, mostly blue and white, some 

gray, some iron stain; depth 12.0-44.0 ft.

87. NEi sec. 22. Drill hole M-75. Clay, varicolored; some iron stain; 

depth 17.0-49. Oft.

88. SEi sec. 22. Drill hole M-39. Clay, blue-gray and gray; some iron 

stain; depth 5.U-36.0 ft.

89. SEi sec. 22. Drillhole M-50. Clay, gray; iron stain; depth 

2.0-9.Oft.

90. SEi sec. 22. Drill hole M-65. Clay, blue; some tan tuffaceous clay; 

some iron stain; depth 17.0-41.0 ft.

72. Drillhole 6, depth 3.0-65.8 ft. 91. Sec. 22. Weighted composite sample of area.
208 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 11. Analyses of samples from Idaho. Oregon, and Washington, of clays in which (2.178x AI-O^ + H-O (however detennined) is 50 percent or more of the

sample (Group Hk), special-rock category Continued

Chemical analyses Continued

Washington Continued

SiO. _______ .

Al.O, .

Fe-0, .

MgO__ _______

CaO ________ .

Na2 0 _______ .

H-0- .

TiO2 _______ .

V,05 .

Total __ .

Class _______ .

92

46Hk32-39

. __ 40.8

. __ 32.8

. __ 6.7

. __ 7.0

. __ 2 10.5

.___ [97.8]

. __ 0,76,0

93

46Hk32-23

41.3 

29.2 

12.3

6.0

2 10.8

[99.6] 

0,78,0

94 95

46Hk32-26 46Hk32-27

43.2 

29.0 

9.6

6.5

210.3

[98.6] 

0,80,0

43.5 

24.8 

13.0

6.2

*11.5

[99.0] 

0,83,0

96

46Hk32-30

43.7 

25.0 

12.5

6.5

*8.7

[96.4] 

0,81,0

97 98

46Hk32-28 46Hk32-29

38.3 39.0 

31.0 27.9 

11.4 14.7

7.0 6.0

2 11.3 *10.2

[99.0] [97.8] 

0,74,0 0,74,0

99

46Hk32-56

40.3 

30.8 

9.1 

.0 

1.0 

.5 

.4

7.5 

.05 

10.9

100.6 

0,75,2

100

46Hk32-31

52.8 

31.0 

1.9

1.3

2 10. 4

[97.4] 

0,94,0

101 102

46Hk32-5 46Hk32-14

54.80 52.32 

31.10 30.68 

1.68 1.70 

Trace .46 

__ _ .80

1 ( Trace 

| ' \ 1.50 

'2.70 h.76 

.23 .52

3 9. 40 3 10.08

100.12 99.82 

0,98,0 0,93.2

103

46Hk32-60

40.1 

30.2 

10.6

6.9

2 10.7

[98.5] 

0,76,0

104

46Hk32-20

44.3 

28.5 

10.2

4.2

2 10.0

.[97.2] 

0,82,0

Washington Continued

SiO. _ __ __ .

A1203 ______ .

Fe-0, _.

MgQ. .

CaO ________ .

NajO _______ .

K-0 .

TiO, _ ___ .

Mn _ ___ _ .

Sand _ ____ .

Class _______ .

105

46Hk 

32-24

. _ 39.1

. __ 32.0

. __ 11.8

. __ 5.5

l ll 4

. __ [99.8]

._ _ 0.75.0

106

46Hk 

32-59

38.3 

30.2 

9.1

6.9

*10.8

[95.3] 

0,73,0

107

46Hk 

32-61

40.7 

30.9 

8.7

.0 

1.0 

.4 

.3

7.3

11.0

100.3 

0,76,2

108

46Hk 

41-175

53.20 

30.72 

2.40 

.52 

.83

| 3.00

7 9.00

99.67 

0,92,3

109

46Hk 

41-176

49.67 

32.38 

1.50 

.58 

.25

1.35

J 2.30 

.51

10.92

99.46 

0.91.2

110 111

46Hk 46Hk 

41-177 41-178

51.36 53.64 

33.09 31.96 

2.39 1.82 

.78 Trace

.08 1.17 

J 2.12 '1.66

3 10.54 3 10.06

100.36 100.31 

0.93.2 0.96,0

112

46Hk 

41-260

51.22 

33.52 

1.72 

Trace

/ .62

'1.38

3 11.16

99.62 

0.93,0

113

46Hk 

37-22

43.30 

35.21 

*1.07 

.14 

.08 

1.30 

.52 

15.90 

'l.ll 

.00 

1.20

[99.83] 

0,84,0

114 115

46Hk 46Hk 

37-19 37-158

48.7 45.56 

32.1 30.60 

4.9 4.28 

.3 .54 

.9 1.39

5 14.0 __ ___

_ __ 8 15.72

100.9 98.09 

0,92,0 0.87,4

116

46Hk 

37-15

47.96 

33.61 

3.95

1.94

"12.88

100.34 

0,88,3

117

46Hk 

38-2

53.16 

30.08 

1.83 

.24 

.43 

f .09 

\ 1.50 

'1.70 

1.50

3 9.76

100.29 

0.95.1

'Sample air dried; moisture a 

2 At950°C.

Combined water, ignition.

Iron oxide.

'Moisture (H2O) (Shedd, 1910. p. 321),

6 Titanic acid.

7 Volatile.

8 Loss on ignition plus moisture at 212°F.

DESCRIPTIVE NOTES

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

Spokane County. Miocene. T. 24 N., R. 44 E. , about 11 miles southeast 

of town of Spokane. (Hosterman and others, 1960, p. 1-4,12,23-25. 

20 ,21,25,26,37 ,45-48,52-54,57,pi. 3.) Mineralogy. Average bulk 

density 1.64. Overburden averages 21.4 ft. Tonnage estimated. Index 

and geologic maps, geologic sections Log of drill hole Weighted 

composite sample, samples taken at about 5-ft intervals or where clay 

showed marked change. Possible use: Source of alumina, ilmenite, 

gallium.

92. NWi sec. 23. Drill hole M-47. Clay, blue, lower part gray, 

includes semidecomposed basalt, depth 11.0-30.0 ft.

93. NWi sec. 28. Drill hole M-14. Clay, blue-gray; depth 7.5-24.5 ft.

94. NWi sec. 28. Drill hole E-23. Clay, mostly blue , plastic; 

limonite streaks; depth 49.0-77.0 ft.

95. On line NWiSWi sec. 28. Drill hole M-26B. Clay, blue-gray and 

brown; depth 9.0-18.0 ft.

96. NEi sec. 29. Drill hole M-30. Clay, blue-gray, some yellow, 

depth 13.0-28.0 ft.

97. On line NEiSEi sec. 29. Drill hole E-34. Clay, mostly blue and 

gray; some iron stain, depth 13.0-41.0 ft.

98. On line NWi sec. 28 and NEi sec. 29. Drill hole E-29. Clay, 

blue-gray; depth 13.5-20.0 ft.

99. Sees. 20, 21. 28, 29. Weighted composite sample of area.

Spokane County. Middle and late Miocene. Latah Formation. SEi sec. 20, 

NEi sec. 29, T. 24 N.. R. 44 E., about 11 miles southeast of Spokane. 

Drill hole Ex-13, sample RHS 849. (Scheid. Hosterman, and Sohn, 1945, 

p. 1.2.16,38, pis. 1,2, fig. 1, table 2 .) Clay, gray and white, plastic; 

depth 34.0-41.0 ft. Index and geologic maps, geologic sections. 

Log of drill hole. Possible use: Source of alumina, titanium.

Washington Continued

101. Spokane County. Latah Formation[ implied]. T. 24 N., R. 44 E., near 

town of Mica. Gladding, McBean.and Co. pit. Analyst, W.R. Bloor. 

Sample 53. (Shedd, 1910, p. 182.184-_186,307,32_1; Glover. 1941. 

p. 231,233,34S,3_49j Hosterman and Livingston, 1966. p. 179,180.184, 

tablets.) Clay, almost white, fine-grained, little grit, very plastic, 

about 50 ft thick. Mineralogy. Tonnage estimated. Index and 

geologic map, generalized geologic section. Physical properties, 

firing tests, microscopic descriptions. Use: Face brick, firebrick, electric 

conduits, terra cotta, sewer pipe, refractories, vitrified structural ware.

102. Spokane County. Latah Formation. SEi sec. 35, T. 25 N.. R. 44 E..

2.5 miles east of town of Chester. Sommer'spit. Analyst, W.R. Bloor. 

Sample 62. (Shedd, 1910. p. 175,179,_180_, 181.307,321; Glover, 1941, 

p. 231,233,253,254,350,351.) Clay, grayish, fine-grained, no grit, 

plastic; maximum thickness 45 ft; overburden 1-6 ft. Mineralogy. Index 

and geologic map, generalized geologic section. Physical properties, firing tests, microscopic description. Use: Face brick, firebrick, 

sewer pipe.

-106. Spokane County. Miocene and Pliocene [ implied]. T. 24 N., R. 44 E., 

about 11 miles southeast of Spokane. (Scheid, Hosterman, and Sohn, 

1945, p. 1,2.15,16,54, pis. 1,3, fig. 1. table_2_.) Index and 

geologic maps, geologic sections. Possible use: Source of alumina, 

titanium.

103. Sees. 20. 21, 28, 29, 32, 33. Clay. Weighted average of assays 

of weighted composite samples of 23 drill holes.

104. SWi sec. 21. Drill hole Mi-10, sample RHS 293. Clay, yellow, 

depth 3.0-8.0 ft; clay, blue-gray, depth 8.0-13.0 ft. Log of 

drill hole.
ANALYSES OF SAMPLES 209

DESCRIPTIVE NOTES Continued

W ashing ton C ontinued

105. SW? sec. 21, NWi sec. 28. Drillhole Mi-12, sample RHS 294. 

Clay, yellow, depth 6.0-9.0 ft; clay, blue-gray, depth 

9.0- 32.0 ft. Log of drill hole.

106. Sees. 22, 23, 27, 34. Clay. Weighted average of assays of 

weighted composite samples of 17 drill holes.

107. Spokane County. [T. 24 N., R. 44 E.], near town of Excelsior. ( Alien 

and Nichols, 1946, p. 59-jil; Pettijohn, 1957, p. 356.) Clay. Mineralogy .

108. Stevens County. Miocene, correlative of Latah Formation. [NWiswi 

T. 29 N., R. 42 E.], town of Clay ton. Washington Brick, Lime, and 

Sewer Pipe Co. pit. ( Wilson, 1923, p. 65, 70; Glover, 1941, p. 233, 

282,283,350,351.) Clay, fine-grained, plastic. Index and geologic 

map, generalized geologic section, generalized measured section. 

Physical properties, firing tests. Use: Firebrick.

109-111. Stevens County. Miocene, correlative of Latah Formation. Sec. 19, 

T. 29 N., R. 42 E., Clayton. Washington Brick, Lime, and 

Manufacturing Co. Analyst. W. R. Bloor. ( Shedd, 1910, p. 200-205, 

206, 307, 321; Glover, 1941, p. 233, 282-284, 350, 351.) Index and 

geologic map, generalized geologic section. Physical properties, 

firing tests, microscopic description. Use: Face brick, bonding clays, 

terra cotta.

109. Sample 3. Clay, light-gray, very plastic, no grit, 

laminated; 3 ft thick. Mineralogy.

110, 111. Samples 72, 71. Clay, white, fine-grained, plastic, little 

grit; 12 ft thick.

112. Stevens County. Miocene, correlative of Latah Formation. SE? sec. 34,

W ashington C ontinued

T. 30 N., R. 42 E., north of town of Deer Park. Neafus property. 

Analyst, W. R. Bloor. Sample 56. ( Shedd, 1910, p. 196. _197, 307, 

320, 321; Wilson, 1934, p. 16, 64, 146; Glover, 1941, p. 231, 233, 

264, 350, 351.) Clay, white, plastic, no grit. Index and geologic 

map, geologic section. Physical properties, firing tests, microscopic 

description. Use: Filler, pottery, refractories.

113. Whatcom County. Tertiary. [Tps. 37, 38 N., R. 2 E.], Bellingham 

Bay. ( Bethune, 1892, p. 66; Wheeler, 1896, p. 296, 595.) Clay. 

Use: Brick, terra cotta, earthenware, pottery, stoneware.

114. Whatcom County. Eocene, Chuckanut Formation. SEi sec. 12, T. 40 N., 

R. 4 E., 3 miles southeast of town of Sumas. Denny-Renton Clay and 

Coal Co., old clay mine. Analyst, H. K. Benson. Sample 89. ( Shedd, 

1910, p. 286-288, 320, 321; Glover, 1941, p. 306, 311-313, 352. 

353.) Clay. Index map, detailed measured section. Former use: 

Terra cotta, fire clay.

115, 116. Whatcom County. Eocene, Sumas Shale. NE? sec. 7, T. 40 N.,

R. 5 E., about 5 miles southwest of Sumas. Gladding, McBean, and 

Co., abandoned mine. ( Hodge, 1938e. p. 769, T70-773, 775; Moen, 

1962, p. 68, 70, 81, 82, pis. 1, 3.) Index and geologic maps, geologic sections, measured section. Firing tests. Use: Refractories.

115. Clay, light-gray; 5-8 ft thick.

116. Clay.

117. Whitman County. Miocene, correlative of Latah Formation. [NE corner, 

T. 16 N., R. 45 E.], town of Palouse. Palouse Pottery Manufacturing 

Co. Analyst, W. R. Bloor. Sample 94. ( Shedd. 1910, p. 224, 225. 

307, 320, 321; Glover, 1941, p. 320, 352, 353.) Clay, light in 

color, plastic. Use: Stoneware.

Table 12 . Analyses of samples from W ashington of clays in which ( 2 . 178 x + H^ ( however determined) is 50 percent or more of the

sample ( Group Hki) , special-rock category

[ Kaolin- like clays (kaolinite only, no "bauxite") . SiOj/AljOj weight ratio from 1.178 to 1.768. Total iron> 30 percent. Chemical

analyses arranged by county and strati graphic position]

Chemical analyses

SiOj _____ 

A120, ____ ____

FejOa _

MgQ_

1 2

46Hki 46Hki 

41-186 37-156

_______ _____ 27.02 33.4

__________ __ 20.29 21.8

________ _____ 48.51 36.4

_ ___ ______ 1.08 _

3

46Hki 

37-153

27.9

20.1

40.9

Washington

CaO ________ __________ _

Ignition loss _ _ _ _ ____ __

Total __ __________ _

Class ___ _ _______ _ ___ _ ___

123

46Hki 46Hki 46Hki 

41-186 37-156 37-153

_ ________ 2.55 _ _ _

______ ____ _____ '8.20 *8.49

__ _________ [99.45] [99.8] [97.4]

_ _____ 0,48,0 0,66,0 0,57,0

'includes H2O.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Washington Washington Continued

1. Stevens County. [Miocene. J SW4 sec. 34, T. 30 N., R. 42 E. Deer Park 

Natural Pigment Co., old Neafus clay pit. Analyst, Richard Marsh. 

Sample 275. (Glover, 1941, p. 233, 290, 350, 351.) General: Clay, 

sienna, brown, hard, m layers as much as 5 ft thick. Index and geologic 

map, generalized measured section.

2, 3. Whatcom County. Early Tertiary. Nz sec. 2, T. 39 N., R. 4 E., 4 miles

east of town of Everson. Sumas Mountain Iron deposit. Analyst, W. H. Ott.

(Moen, 1962, p. 105, 109, jlO-112, pis. 1, 4.) Mineralogy. Channel 

sample. Average bulk density of five samples 3.0. Tonnage estimated. 

Index and geologic maps, geologic sections. Use: None.

2. Samples. Claystone, grayish-brown; occasional pisolites of magnetite.

3. Sample 8. Claystone, grayish-brown; silty in part.
210 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

: more of the

sample (Group Ha), special-rock category

[ High-alumina clays (kaolinite predominant, "bauxite" subordinate) . SiOj/AlzO, weight ratio from 0. 

arranged by State , county , and stratigraphic p< 

Chemical analyses

SiOj

Al,Oj

FejOj

FeO

MgO

CaO _

Na,O

K»O

HjO+

H,0- _ ___ __

TiOj

PjOj

MnO _

S

Ignition loss _ _

Less O ___________

Total ______

Class ___________

SiOj ____________

Al,0, ___________

MgO ____________

CaO ____________

TiOj __

P,0, ___________

Ignition loss _______

Total _______

Class ___________

SiOj __ __ _

Al,0, ___________

FejO, ___________

MgG ___________

CaO __ _

H»0- ___________

TiOj ___________

Ignition loss ___ _ _

Total _______

Class ____________

Alaska

50Hal51-l

43.64 

38.33 

1.43

1.02 

1.48

13.64

.60

100.14 

0,83,0

14

36Ha3-25

h6. 78 

*45.42 

'13.87

'(25.6)

22.46

[98.53] 

0,50,0

27

36Ha5-65

16.0 

34.8 

'26.9

"(19.9)

3.9 

18.5

[100.1] 

0,45,0

2

36Ha3-3

36.38 

39.22 

5.85

.31 

.67

T .28

17.36

100,07 

0.74,2

15

36Ha3-2

39.47 

39.52 

 4.12 

.03 

.72

15.98

99.84 

0,78,1

28

36Ha5-25

43.62 

37.56 

5.31 

.22 

.39

T 1.07 

12.63

100.80 

0,82.1

3

36Ha3-4

38.96 

39.04 

4.54

.34 

.84

7 .17

16.28

100.17 

0,77,2

16

36Ha3-27

40.67 

39.70 

"5.12

.40

13.84

99.73 

0.78,1

29

36Ha5-26

39.40 

39.82 

6.68 

.14 

.21

T .32 

13'.28

99.85 

0,76,1

4

36Ha3-36

36.20 

35.96 

3.35

.4 

.56

*5.91 

1.87

16.05

100.3 

0,78,2

17

36Ha5-36

14.34 

38.48 

*27.27

a!8.46

[98.55] 

0,42,0

30

36Ha5-27

38.10 

40.10 

8.82 

.15 

.35

7 .47 

12.20

100 . 19 

0,73,1

371 to 1.178 

)sition]

: total iron <30 percent. Chemical analyses

567

Oregon

36Ha3-37 36Ha3-8 36Ha3-6

39.74 36.6 35.84 

36.20 38.2 32.50 

1.96 5.6 14.10

.5 .1 .26 

.62 .4 .61

:::::: j < < -----

«4.99 _ ______

1.78 2.2 T .20

15.28 16.5 17.46

101.1 100.0 100.97 

0,82,2 0,74.1 0,75,2

Oregon Continued

18 19 20

36Ha5-64 36Ha5-2

23.36 26.65 22.04 

39.22 34.49 37.30 

'17.86 '20.75 '21.45

3.32 4.73 4.94 

'.433 '.49 ______

a!8.10 15.93 17.62

[102.31] [103.04] [103.35] 

0,56,0 0,60,0 ______

Oregon Continued

31 32 33

36Ha20-9 36Ha20-6 36Ha20-2

46.98 45.60 45.3 

40.20 38.75 39.1 

.37 .57 .9

.17 .19 ______

.47 .37 ______

T .50 T .34 2.4 

11.38 14.90 13.3

100.07 100.72 101.0 

0.84.1 0,86.1 0,84.0

8

36Ha3-33

17.34 

37.94 

9.39 

7.49 

.27 

.52

r .10

{ .06 

18.02 

2.58 

2.40 

.40 

.10 

.05 

'2.90

99.56 

.03

99.53 

0.49,4

21

36Ha5-43

34.92 

37.32 

*8.17

3.02

a!5.06

[98.49] 

0,71.0

34

36Ha20-l

42.0 

42.7 

1.4

2.3 

12.5

100.9 

0.79.0

9

36Ha3-34

28.71 

39.54 

8.25 

.18 

.13 

.14 

.04 

.05 

17.63 

3.01 

1.77 

.24 

.04 

.02 

'.03

99.78 

.01

99.77 

0.67,0

22

36Ha5-42

31.70 

32.12 

'18.59

2.96

a!3.80

[99.17] 

0,66.0

35

36Ha24-30

28.04 

28.16 

25.4

5.33 

13.07

[100.0] 

0,60.0

10

36Ha3-15

21.5 

43 

»14.3

'(24) 

1

20

*[100] 

0,55.0

23

36Ha5-41

21.66 

36.12 

'23.61

3.37

a !7.50

[102.26] 

0,53,0

36

36Ha24-31

27.96 

34.60 

23.8

5.00 

8.64

[100.0] 

0,55.0

11

36Ha3-21

'33.44 

'35.81 

'14.59

'(13.70)

13.85

[97.69] 

0.68,0

24

36Ha5-40

15.00 

39.32 

'26.87

3.69

*17.26

[102.14] 

0,42,0

37

36Ha24-32

21.92 

33.44 

28.3

5.82 

10.52

[100.0] 

0,47,0

12

36Ha3-22

'32.82 

*36.81 

*14.43

14.06

[98.12] 

0,68,0

25

36Ha5-68

13.9 

36.0 

'26.7 

Nil

"(22.3) 

4.40

18.4

[99.4] 

0,42,0

38

13

36Ha3-23

'19.54 

*43.34 

'16.17

'(32.6)

19.32

[98.37] 

0,51,0

26

36Ha5-69

30.5 

28.5 

'22.5

"(27.2)

13.4

[94.9] 

0.64,0

39

36Ha24-38 36Ha24-45

16.96 

30.52 

26.9

5.64 

19.98

[100.0] 

0.48.0

28.70 

28.35 

'21.04

4.32 

a!6.97

[99.38] 

0.65,0

'siOj may be high because of mixture from other 

parts of drill hole.

'includes about 1 percent TiOj.

'Calculated from reported iron, Fe, or P.

4 Mainly alkalies and alkaline earth, 

by difference.

'Moisture loss H,O- at 110"C.

'At 110° C, not included in total.

T TiO.

'CO*.

'Analysis on dry basis, 

"includes FeO. 

"Not included in total. 

s At 1,000°-1.100°C, sample air dried.
ANALYSES OF SAMPLES 211

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Alaska Oregon Continued

19. 20. Sample P-3274. Bauxitic clay, light-brown, soft; 3-ft channel 

sample. 

20. Analyst, L. L. Hoagland.

1. Wainwright quadrangle. Late Cretaceous. T. 9 N.. Rs. 29-31 W.. near 

town of Wainwright, Avalik River (James Keogh, oral commun., Dec. 9, 

1964) reported as Abatik River. Analyst, F. A. Gonyer; collector, 

P. S. Smith. Sample 10. ( Ross and Kerr, 1930, p. 162, 163.) Kaolinite, 

light-gray; optical properties.

Oregon

2, 3. Clackamas County. Probably post-middle Miocene. NEi NEi sec. 27,

T. 5 S., R. 2 E., 4.3 miles by road southeast of town of Molalla. Ellis 

property. ( Wilson and Treasher, 1938, p. 1, 24, 31, 41-45, 84-86, 88.) 

General: Fire clay, bluish-gray to purplish-green; weathers brown. Overburden more than 70 ft. Mineralogy. Tonnage estimated. Index maps, 

detailed measured sections. Physical properties, firing tests. Possible use: 

Refractories.

2. Field No. 6 D 30. Auger hole sample, 20 ft.

3. Field No. 6 X 1. Channel sample represents upper 11 ft of clay.

4, 5. County, age, and locality as in samples 2, 3. Analyst, H. R. Shell. Samples 

6-x-l, 103. ( Spell and others, 1945, p. 30. 32.) Kaolin. Mineralogy. 

Thermal analysis curve.

6. Clackamas County. [Probably post-middle Miocene. Sec. 27, T. 5 S., 

R. 2 E., southeast of town of] Molalla. Analyst, Anthony Centenero; 

collector, R. L. Nichols. Sample M-2. ( Pask and Davies, 1943, p. 3, 10, 

20, 22, 23, 25; Pask and Davies, 1945, p. 57, 62, 73, J4, 76. 78.) Clay. 

Mineralogy. Thermal analysis curve. Possible use: Source of alumina.

7. Clackamas County. Probably post-middle Miocene. SEiSEi sec. 1, T. 6S., 

R. 2 E., more than 10 miles by road southeast of Molalla. Dibble property. 

Field No. 8B. ( Wilson and Treasher. 1938. p. 1, 24, 42, 46. 47, 84-86, 

89.) Clay, deep-blue when wet, sandy; weathers brown; 150 ft thick; overburden. Index maps. Physical properties, firing tests. Possible use: None.

8, 9. Clackamas County. Late Miocene and early Pliocene. Analyst,

F. H. Neuerburg. ( Trimble, 1963, p. 3, 89, 90, 93, 103, pi. 1.) Index 

and geologic maps, geologic section. Possible use: Quick-setting aluminous 

cement; source of aluminum.

8. NWi NEi sec. 19, T. 3 S., R. 4 E., near River Mill Dam. Sample 

C-945. Laterite, brown.

9. SEiNWi sec. 33, T. 3 S., R. 4 E., above forebay at Faraday. Sample 

C-946. Laterite, light-orange, earthy.

10-14. Clackamas County. Pliocene. T. 4S., R. 4 E., 6 miles southeast of town of 

Estacada. ( The Ore.-Bin, 1948, p. j>3-65; Oregon Dept. Geology and Mineral Industries, 1951, p. 15.) [Bauxitic clay] bauxite, brown, oolitic. 

Mineralogy. Index map. Possible use: SiOj too high for production of 

alumina but may be used for other purposes.

10. NWi sec. 3 or NEi sec. 4. Kiggins farm. Average analysis from

two auger holes, about 7 ft of section. 

11-14. NWi sec. 3 and NEi sec. 4. Kiggins and Shearer farms. Auger

hole 6. [For another analysis from same drill hole, see sample

1, group Hb. ]

11. Depth 19-20 ft.

12. Depth 17-18 ft.

13. Depth 15-16 ft.

14. Depth 11-12 ft.

15. Clackamas County. Pliocene or Pleistocene. Ei NEi sec. 27, T. 5S.,

R. 2 E., about 4 miles south of Molalla. Ellis deposit. Sample 2. ( Hodge, 

1938f,ip. 817, 849-JS53.) Clay, gray, plastic; 8 ft thick. Index map. 

Firing tests. Possible use: Ceramics.

16. Clackamas County. [T. 2S., R. IE.], town of Oswego. Ladd property.

Sample 6. ( Hodge, 1938f, p. 817, 842, 847, 848.) Clay, plastic, sandy; 

overburden. Index maps. U»e: Patching furnace linings, pottery.

17-20. Columbia County. Miocene and Pliocene. SWi sec. 1. T. 4 N., R. 2W.. 

about 0.5 mile south-southeast of town of Yankton, railroad cut. ( Libbey, 

Lowry. and Mason. 1945, p. 1, 4, 5. 26, 47-f9. 50, 87. 88.) Index maps, 

geologic section.

17. Analyst, L. L. Hoagland. Sample P-3320. [Ferruginous bauxite] 

laterizcd basalt, brown, earthy, lower 1.5 ft sampled; overburden 

about 6 fi. Channel sample.

18. Sample P-3395. Bauxitic clay, reddish-brown, soft, slightly pisohtic; 6.2 ft thick, top of section; overburden about 6 ft. 

Channel sample.

21-24. Columbia County. Miocene and Pliocene. Sec. 18, T. 7N., R. 2.W., west 

of town of Rainier, roadcut. Analyst, L. L. Hoagland. ( Libbey, Lowry, 

and Mason, 1945, p. 1, 4, 5, 27, ^4, 55, 87, 88.) Silt overburden. Mineralogy. Index maps, measured section.

21. Sample P-3396. Bauxitic clay, buff, oolitic; some hard spots; 3 ft 

thick.

22. Sample P-3397. [Ferruginous bauxite] bauxitic clay, red, oolitic; 

some yellowish fragments of fossil wood; upper 1.5 ft of lower 

layer.

23. Sample P-3398. [Ferruginous bauxite] red, oolitic, hard with a few 

soft streaks; some fossil wood; sample of entire middle section, 8.7 

ft thick.

24. Sample P-3361. [Ferruginous bauxite] boulder, hard, oolitic; from 

upper section.

25-27. Columbia County. Miocene or later. NWi sec. 16, T. 4N., R. 2W., 

about 0.5 mile north of town of Spitzenberg, Alder Creek area. Dietz 

property. ( Kelly, 1947, p. 4, 6, j/7, ^8. figs. 1, 2.) Laterite, dark-red, 

oolitic or pisolitic; averages about 14 ft thick; silt overburden averages about 

13 ft. Auger-drill hole samples. Index and geologic maps, geologic 

sections.

25. Drill hole 20. Depth 34.Oft. Bulk density 2.81.

26. Drill hole 20. Depth 21.0 ft. Bulk density 2.78.

27. Drill hole 23. Depth 14.0 ft. Bulk density 2.75.

28-30. Columbia County. Probably post-middle Miocene. NEi sec. 33, T. 8 N., 

R. 3 W., 6 miles west of Rainier. Fransen deposit. ( Wilson and Treasher, 

1938, p. 1, 19, 24, 27-33, 84, 86, 88.) Mineralogy. Tonnage estimated. 

Index maps. Firing tests. Former use: Stoneware. Possible use: 

Refractories.

28. Field No. 1C. Clay, greenish-gray; about 5 ft thick.

29. Field No. 1 F. Clay, pale-gray-green, fine-grained, compact; depth 

17.5-31.5 ft. Auger-drill hole sample.

30. Field No. 1G. Clay. Detailed measured section.

31. 32. Lane County. Probably post-middle Miocene. SWi sec. 31, T. 22 S.,

R. 4 W., about 16 miles south of town of Cottage Grove. Willamina Clay 

Products Co., Hobart Butte quarry. Field Nos. 35 F 2, 35 H 2. ( Wilson 

and Treasher. 1938, p. 19, 24, 69-74, 84-86, 92.) Clay, gray. Average 

bulk density 2.4. Tonnage estimated. Index maps, measured section. 

Physical properties, firing tests. Possible use: Paint and paper filler, 

refractories, whiteware.

33, 34. Lane County. [Sec. 31, T. 22 S., R. 3W.], Hobart Butte deposit. Analyst, 

Anthony Centenero. ( Pask and Davies, 1943, p. 3, 10, 20, 22-25; Pask 

and Davies, 1945, p. 57. 72. T3, 74, 76, 78.) Clay. Mineralogy, 

thermal analysis curve. Possible use: Source of alumina. 

33. Collector. R. L. Nichols. Sample HB-1.

35-38. Marion County. Miocene and Pliocene. NWi sec. 19, T. 8S., R. 3W., 

7-10 miles south of town of Salem, Salem Hills area. Analysts, 

L. L. Hoagland and assistants. Drill hole 17. ( Corcoran and Libbey, 1956, 

p. 1, 2, 6, 16, 19, 26, 27, 29, pi. 1.) General: Ferruginous bauxite, 

average thickness 14.4 ft. Tonnage estimated. Index and geologic maps. 

Graph showing variation in chemical composition for each 2 ft interval of 

depth. [For other analyses from same drill hole, see samples 3, 4, group 

Hai; samples 10-13, group Hbi.]

35, 36. Bauxitic clay [implied] brown to blue-black; yellow, black, blue 

spots, slightly gritty.

35. Sample 9. Depth 18-20 ft.

36. Samples. Depth 16-18 ft.

37. Sample 7. Bauxitic clay [implied] tan to blue-black; yellow, 

black, blue spots, slightly gritty; depth 14-16 ft.

38. Sample 1. Bauxite, yellow-brown, earthy, gritty; numerous 

fragments of gibbsite; depth 2-4 ft. Possible use: Source of 

alumina, ferrotitanmm, pig iron.

39. Marion County. Miocene and Pliocene. Near center sec. 26, T. 8 S.,

R. 3 W., about 5 miles south of Salem, roadcut. Analyst, L.L. Hoagland. 

Sample P-3536. ( Libbey, Lowry, and Mason, 1945, p. 4, 5. 72, 74, 28, 

85-88.) [Ferruginous bauxite], red, nodular; 3.5 ft channel sample. 

Index maps. Possible use: Abrasives, cement, aluminum chemicals, 

oil refining, refractories.
212 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

sample (Group Ha), special-rock category Continued

Chemical analyses Continued

Oregon Continued

SiOj _______

A12 0, _

Fe_0, _______

MgO ________

CaO

Na20 _______

D O

CO, .

CO

Zr.O.

v,os .

Ignition loss _ _

Class _______

SiOz _ _____

AljO, _______

FejO, _

TiO, __ _

Ignition loss _ _

Ignition loss _ _

Total __

Class _______

Si02 _ _____

A120, __ ___

FejO, ______

MgO __

CaO _ __ __

Na20 _ _____

HZO- __

Ti02 _______

COj

SO, _

Zr20, ______

V2O5

Organic C _ _

Ignition loss

Ignition loss _

Class

40

36Ha 

24-48

17.71

35.08

____ ^6.56

_____ 3.57

____ 20.43

____ 103.35

____ 0.50.0

53

46Ha8-21

____ 37.0

____ 34.9

____ 5.7

____ '17.8

 [95.4]

____ 0,77,0

66

46Ha8-42

__ _ 34.4

__ _ 34.7

10.9

2.2

____ *16.6

____ '(16.0)

____ [98.8]

____ 0,72,0

41 42

36Ha 36Ha 

24-49 24-68

31.49 17.2 

29.69 33.4 

'21.59 26.6

3.77 2.67

415.73 18.03

[102.27] [97.9] 

0,68,0 0,47,0

54 55

46Ha8-22 46Ha8-23

38.4 30.4 

37.7 41.6 

2.9 4.15

'17.4 9 23.0

[96.4] [99.2] 

0,78,0 0,71,0

67 68

46Ha8-43 46Ha8-44

38.7 39.7 

33.0 34.8 

5.9 5.7

2.3 2.3

519.5 *16.6 

"(19.1) "(15.9)

[99.4] [99.1] 

0,81,0 0,80,0

43

36Ha 

24-2

42.16 

41.30 

2.87 

.30

.26

2 .55

13.37

100 .81 

0,79,1

56

46Ha8-24

33.4 

35.3 

5.9

'24.6

[99.2] 

0,78,0

69

46Ha8-45

39.3 

34.0 

9.0

2.3

5 14.7 

'(14.1)

[99.3] 

0.78,0

Calculated from reported Fe. 

2 TiO. 

'Not included in total. 

4 At 1.000°-1,100°C, sample air dried. 

5 At 950°C. Sample dried at 130°C. 

6 At 1,000°C.

44 45 46 47

36Ha 36Ha 46Ha 46Ha 

27-2 34-23 8-57 8-12

19.10 15.94 36.3 38.86 

34.01 36.20 32.8 33.06 

r!3.77 '25.80 7.1 7.58

3.18 _____ 2.3 2.45

419.28 4 20.91 5 20.5 *17.78 

8/ -iq IT\

[99.34] [98.85] [99.0] [99.73] 

0.51,0 0,47,0 0,79,0 0,80.0

W ashington C ontinued

57 58 59 60

46Ha8-25 46Ha8-28 46Ha8-29 46Ha8-30

35.2 35.0 35.6 32.6 

37.0 37.4 38.5 37.3 

4.0 9.4 8.3 11.7

'22.3 '17.8 '19.2 '18.4

[98.5] [99.6] [101.6] [100.0] 

0,78,0 0.74,0 0,76,0 0.71,0

Washington Continued

70 71 72 73

46Ha8-46 46Ha8-18 46Ha8-6 46Ha8-4

37.9 3T.7 38.28 42.7 

33.5 32.7 34.91 38.9 

7.2 7.2 5.85 3.3 

.2

____ .2 _____ ______

2.3 2.3 2.30 2.0 

_____ .34 .55 ____

 __ '(2.76) ______

__ _ .43 _____ _____

 __ '(3.23) _ ______

*18.4 7 18.5 16.60 15.2 

'(17.8) "(17.7) _ ___ ______

[99.3] 100.4 [98.80] 102.1 

0.79.0 0,76,4 0.78,0 0,83,0

7 At 950°C. 

8 At 700°C. Not included in total. 

9 At800°C. Sample dried at 130°C 

10 Mainly alkalies and alkaline earth 

by difference . 

U A» Tin°r .

48

46Ha 

8-59

37.5 

32.6 

5.7

2.3

*20.6 

'(19.3)

[98.7] 

0,81,0

61

46Ha8-31

37.6 

42.5 

2.7

'18.0

[100.8] 

0,77.0

74

46Ha8-3

42.8 

37.3 

3.2

} " 3

2.9

13.5

100.0 

0,81.0

,

Washington

49

46Ha 

8-47

35.7 

35.7 

11.0 

.1

.3

< .05

< .05

1.1

.25

'(1.30) 

< .05

< .05

< .05

'(.35) 

T15.8

100.2 

0,72,2

62

46Ha8-32

35.1 

30.9 

11.0 

2.0 

*19.6 

'(19.2)

[98.6] 

0,77,0

75

46Ha8-2

32.5 

39.4 

4.1

"1.1

2.1

20.8

100.0 

0,72,0

50

46Ha 

8-48

37.8 

35.0 

10.4

2.2

*13.7 

8 (W. 4)

[99.1] 

0,75,0

63

46Ha8-36

36.8 

32.4 

6.9 

2.3 

*20.1 

'(19.2)

[98.5] 

0,79,0

76

46Ha8-l

36.6 

42.3 

.9

»7

2.5

17.0

100.0 

0,74.0

51

46Ha 

8-49

34.7 

34.3 

11.9

2.3

*15.7 

'(15.0)

[98.9] 

0,72,0

64

46Ha8-37

36.4 

32.5 

6.7 

2.1 

*20.4 

'(19.9)

[98.1] 

0.79.0

77

46Ha8-63

40.20 

34.79 

1.78 

.4

U 3.34

2.47

16.49

99.9 

0.82,2

52

46Ha 

8-19

37.3 

32.7 

6.8

2.4

*19.4 

'(19.0)

[98.6] 

0.79,0

65

46Ha8-40

35.7 

33.0 

9.3 

2.3 

*18.6 

'(18.4)

[98.9] 

0,76,0

78

46Ha8-5

41.22 

37.35 

4.13

17.30

[100.00] 

0.83,0
ANALYSES OF SAMPLES 213

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued

40,41. Marion County. Miocene and Pliocene. NWi sec. 28, T. 8 S., R. 3 W., 

about 5 miles south of town of Salem, roadcut. Analyst, L.L. Hoagland. 

( Libbey, Lowry. and Mason, 1945, p. 4, 5, 67, 72, 74, 76, 77. 85, 87, 

88.) Index maps.

40. Sample P-3569. [Ferruginous bauxite] laterite; represents upper 3 ft 

containing brownish-gray material with whitish gibbsitic pieces.

41. Sample P-3568. [Ferruginous bauxite] laterized basalt, claylike, 

soft, few oolites in upper part; 3 ft thick; overburden. Channel 

sample. Possible use: Abrasives, cement, aluminum chemicals, 

oil refining, refractories.

42. Marion County. Miocene and Pliocene. Near center sec. 35, T. 8S., 

R. 3 W., 7-10 miles south of Salem, Salem Hills area. ( Corcoran and 

Libbey, 1956. p. 1, 2,^9, pi. 1.) General: Ferruginous bauxite, 

predominantly yellowish to reddish brown, earthy; contains veinlets of 

limonite and light-colored clayey material; average thickness 14.4 ft. 

Tonnage estimated. Index and geologic maps.

43. Marion County. Probably post-middle Miocene. SEjNE* sec. 3, T. 8S.. 

R. 2 W., 1.1 miles west of town of Macleay. Salem area, roadcut. 

Field No. 27. ( Wilson and Treasher. 1938, p. 19, 24, 50, 62. 84. 91.) 

Clay, mixture of white, yellow-brown and gray; soft, fine grained. Index 

maps. Firing tests. Possible use: None.

44. Polk County. Miocene and Pliocene. Southwest corner sec. 16, T. 7S., 

R. 3 W., about 1 mile northwest of Salem. Analyst, L.L. Hoagland. 

( Libbey, Lowry.and Mason, 1945, p. 1, 4. 5, 74, ^75, 85-88.) [Ferruginous bauxite], 2 ft channel sample. Index maps. Possible use: Abrasives, 

cement, aluminum chemicals, oil refining, refractories.

45. Washington County. Miocene and Pliocene. NW|SW| sec. 1, T. 2N.,

R. 3 W., 14 miles north of town of Hillsboro. Hutchison-Nixon properties. 

Analyst, L.L. Hoagland; collectors, J.F. Cleaver, L.C. Swanson. Drill 

hole 50, sample 3. ( Libbey, Lowry. and Mason. 1945, p. 1, 4, 5, 24, 

34. 35-38, 87, 88.) [Ferruginous bauxite] clay, brick-red, hard, 

magnetic, oolitic, pisolitic; depth 27-32 ft. Overburden 20 ft. Tonnage 

estimated. Index maps, geologic sections, detailed measured section. 

[For other analyses from same drill hole, see sample 114, group D; 

samples 23-25, group Hb; samples 47-49, group Hbi.]

Washington

46-51. Cowlitz County. Tertiary. T. ION., R. 1 W., about 6.5 miles northeast 

of town of Castle Rock. Cowlitz deposit. ( Popoff, 1955, p. 1-5, 7, j), 

11-18, 21, 22, 25. 38. 52-54.) Mineralogy. Tonnage estimated. Index 

and geologic maps, geologic sections. Log of drill hole. Use: 

Refractories. Possible use: Source of alumina.

46. SEi sec. 7. Drill hole 50. Clay, red-brown and green-blue, 

semiplastic; more than 40 ft thick, overburden; depth 

16.0-54.0 ft.

47. Ou boundary SWj sec. 17, NWi sec. 20. Clay, gray, hgnitic.

48. NEi sec. 18. Drill hole 53. Clay, red-brown and green-blue, 

semiplastic; more than 40 ft thick, overburden; depth 

34.0-65.6 ft.

49-51. NWi sec. 18. Clay, less than 25 ft thick; overburden.

49. Drill holes 8, 9. Composite sample.

5U. Drill hole 8. Depth 4.0-27.3 ft.

51. Drill hole 9. Depth 3.7-28.2 ft.

52-71. Cowlitz County. Tertiary. SE\ sec. 18. T. ION., R. 1 W., about 6.5

miles northeast of Castle Rock. Cowlitz deposit. ( Popoff, 1955, p. 1-5, 

7, 9, K)-19, 25. 37, 45, 46, 48, 57, 58.) Lower portion: Clay, bluegray and gray, semiflint, fine, dense; contains clay pellets, siderite

Washington Continued

oolites,and concretions; 12-20 ft thick. Upper portion: Clay, gray or 

nearly black; contains lignite seams; overburden. Mineralogy. Tonnage 

estimated. Index and geologic maps, geologic sections. Log of drill hole. 

Use: Refractories. Possible use: Source of alumina.

52. Drillholes. Depth. 48.5-97.3 ft.

53-61. Drill hole 4. [For other analyses from same drill hole, see sample 

133, group D,and samples 70, 71, group Hk.]

53. Clay, gray-blue with white clay pellets; depth 

76.2-$2.0ft.

54. Clay, gray-blue with white clay pellets and tuffaceous 

material; depth 72.0-76.2 ft.

55. Clay, gray with small amount of lignite; depth 

59.1-69.4 ft.

56. Clay and lignite; depth 49.5-59.1 ft. Measured section.

57. Clay, with small amount of lignite; depth 43.1-49.5 ft.

58. Clay, cream-gray and yellow-brown; depth 23.0-26.0 ft.

59. Clay, cream and yellow-brown; depth 20.5-23.0 ft.

60. Clay, cream and yellow-brown; depth 17.8-20.5 ft.

61. Clay, cream; contains basalt pebbles; depth 15.7-17.8 ft.

62. Drill hole 5. Depth 50.8 - 98.0 ft.

63. Drill hole 32. Depth 13.0-59.0 ft.

64. Drill hole 34. Depth 26.8-79.1 ft.

65. Drill hole 38. Depth 17.5-60.5 ft.

66. Drill hole 40. Depth 2.0- 23.8 ft.

67. Drill hole 56. Depth 2.1-33.4 ft.

68. Drill hole 57. Depth 4.6-45.0 ft.

69. Drill hole 60. Depth 3.2-21.7 ft.

70. Drill hole 61. Depth 2.5-48.1 ft.

71. Remarks [except section] as in samples 52-71. SW? sec. 17, 

SEi sec. 18. Composite samples of drill holes 3-7, 11, 32, 

34-36, 38-40.

72. Cowlitz County. Tertiary. T. ION., Rs. 1, 2W., about 6.5 miles northeast of Castle Rock, Cowlitz deposit. (Popoff, 1955, p. 2-5, 11-15, 25, 

31 .) Clay. Mineralogy. Tonnage estimated. Index and geologic maps, 

geologic sections.

73-76. County, age, locality, maps, and use as in samples 52-71. Analyst,

Anthony Centcnero; collector, R.L. Nichols. Samples CR-1 to CR-4. 

(Pask and Davies, 1943. p. 3, 10, 20^22. 23. 24; Popoff, 1955, p. 1-5, 

1,8,11, 12, 15, 16, 25.) Clay. Mineralogy. Tonnage estimated. 

Thermal analysis curve.

77. Cowlitz County. [T. 9 N., R. 2 W.], Castle Rock. Analyst, H. R. Shell. 

( Speil and others. 1945, p. 30, 32.) Kaolin. Mineralogy. Thermal 

analysis curve.

78. Cowlitz County. [T. 9 N., R. 2 W., Castle Rock.] ( Every and Hagan. 

1949, p. ^7, 29.) Clay. Mineralogy. Physical tests. Use: Cement if 

beneficiated.
214 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 13. Analyses of samples from Alaska. Oregon, and Washington, of clays in which Aj^+SlOi +HjQ ( however ^determined) is 50 percent or more of the

~ sample (Group Ha), special-rock category Continued

Chemical analyses Continued

Washington Continued

SiO, ______

Ai.ru

Fe,0, .

CaO _______ .

Na,0 ______ .

H_fW

TiO, ______ _. 

Ignition loss __

Total ___

Class ______ .

79

46 Ha 

8-64

41.88

__ 36.04

1.98

So CQ

2.42

__ 14.88

__ 100.7

0,83,2

80

46Ha 

17-10

40.37 

38.57 

3.43 

.45 

.67 

.22 

.08 

«1.56

*15.30

100.65 

0,80,2

81

46Ha 

17-9

40.26 

35.84 

3.20 

.26 

.40 

Trace *.oo

4 1.75

*15.21

"99.30 

0,80,1

82

46Ha 

17-14

39.90 

39.40 

2.83 

.56 

.96

16.40

100.05 

0,78.3

83

46Ha 

17-15

40.80 

39.30 

1.47 

.54 

.87 

1.30

1.28

7 14.90

100.76 

0,79.3

84

46Ha 

17-16

40.10 

40.30 

1.37 

.10 

.52

.72

17.33

100.44 

0,80,1

85

46Ha 

17-33

24.50 

55.00 

'3.40

_

2.80

*15.5

[101.2] 

0,54,0

86

46Ha 

17-22

41.36 

40.49 

.71 

Trace

.62

1.47 

*15.29

[99.94] 

0,80.0

87

46Ha 

32-19

39.4 

34.4 

5.8

8.4

[99.9] 

0,75,0

88

46Ha 

32-22

36.9 

32.4 

10.9

7.5

 ll.4

[99.1] 

0.71,0

89

46Ha 

32-25

39.4 

33.7 

7.8

7.0

*11.3

[99.2] 

0,75,0

90

46Ha 

32-52

45.2 

38.5 

3.1 

.4 

Trace

*12.7

99.9 

0,84,1

91

46Ha 

37-17

46.57 

32.73 

4.10 

.61 

1.74

.96 

2.37

7 11.07

100.15 

0,86,4

'Total iron.

'Reported only in Shedd (1910, p. 319).

$At 110"C.

'Sample air dried, moisture at 110°C.

'Common water.

'Combined water, ignition.

'Volatile, 

'includes CO), 

»At950"C.

*CO| =0.70 percent, total =100.00 

(Shedd, 1910, p. 319).

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Washington Continued

79. Cowlitz County. [ Probably T. 10 N ,, R. 1 W., near town of Castle Rock. 

Cowlitz deposit. ] Analyst, H.R. Shell. ( Speil and others, 1945, p. 30, 

_32.) Kaolin. Mineralogy. Thermal analysis curve.

80,81. King County. Eocene and Oligocene, Puget Group. NE| sec. 26,

T. 21 N., R. 6 E., town of Kummer. Gladding, McBean,and Co., clay 

mine. Analyst, W.R. Bloor. Samples 9, 10. (Shedd, 1910, p. 256- 

258. 259,307,319; Glover, 1941, p. 128,129,344.345.) Flint fire clay, 

almost black, nonplastic, conchoidal fracture; 5-10 ft thick; overburden. 

Measured section. Physical properties, firing tests. Use: Firebrick.

82-84. King County. Puget Group. NEi sec. 26, T. 21 N., R. 6E.. 2.2 miles

south of town of Black Diamond. Kummer mine. (Hodge, 1938e, p. 750, 

751,753,754,758-760.) Tonnage estimated. Index map, geologic 

section, detailed measured section. Use; Refractories.

82. Flint clay, nonplastic.

83. (Wilson, 1923, p. 21,62-65.) Clay, dark, highly carbonaceous. 

Physical properties, firing tests.

84. Flint clay, nonplastic. Firing test.

85. King County. Puget Group. [ Tps. 21, 22 N.. R. 7 E. ],town of Durham.

Sample 4. (Alien, 1952, p. 652,670,671,685. pi. 4.) Clay. Mineralogy. 

Index map. Photomicrograph. Refractive index.

86. King County. [ T. 24 N., Rs. 10.11 E. J.town of Taylor. Denny Clay Co. 

Analyst, W.J. Rattle. Sample 2. (Roberts, 1902b, p. 14,^5; Wilson, 

1934, p. 98-100; Glover, 1941, p. 122.344,345.) Clay, light-yellow. 

Use: Brick, flue lining, sewer pipe, roofing tile. Possible use: Ceramics, 

china.

Washington Continued

87-89. Spokane County. Miocene. T. 24 N., R. 44 E., about 11 miles southeast of 

town of Spokane. (Hosterman and others, 1960, p. 2-4,12-15,20,25,26, 

37,43,46,48,pi. 3.) Overburden averages 21.4 ft. Mineralogy. Average 

bulk density 1.64. Weighted composite sample, samples taken at about 5-ft 

intervals or where clay showed a marked change. Tonnage estimated. Index 

and geologic maps, geologic sections. 'Log of drill hole. Possible use: 

Source of alumina, ilmenite, gallium.

87. On line SEi sec. 20, NEi sec. 29. Drill hole E-14. Clay, blue s in 

lower part very fine and even grained; some kaolin amygdules and 

streaks; depth 43.5-53.5 ft.

88. On line SWi sec. 21, NWi sec. 28. Drill hole E-40. Clay, bluegray and light-tan; some kaolin amygdules, iron stain; 

depth 1.0-17.0 ft.

89. NW^ sec. 28, Drill hole E-25. Clay, varicolored; some kaolin 

amygdules; depth 35.0-50.5 ft.

90. Spokane County. T. 24 N., R. 44 E., near town of Mica. Washington Brick, 

Lime.and Sewer Pipe Co. pit. Sample 215. (Glover, 1941, p. 231,233, 

348,349.) Clay, blue, plastic. Index and geologic map, generalized 

geologic section, measured section. Use: Terracotta, pottery, 

refractories, structural ware.

91. Whatcom County. Eocene, Chuckanut Formation. SEj sec. 12, T. 40 N., 

R. 4 E., 3 miles southeast of town of Sumas. Denny-Renton Clay and Coal 

Co., old clay mine. (Wilson, 1923, p. 21,62,65-67; Glover, 1941, 

p. 306,311-313,352,3531.) Clay. Physical properties, firing tests. Former 

use: Fire clay, terra cotta. Use: Refractories.
ANALYSES OF SAMPLES 215

Table 14. Analyses of samples from Oregon and Washington of clays in_which Al;O)+SiO2+H2O (however determined) is 50 percent or more of the sample

[ High-alumina clays (kaolinite predominant

SiO, ___

Al,0, .

FejO, ________________________

FeO _______________ ________

MgO _________

CaQ_______ ____________________

Na,0 __________________________

K,O ___________________________

HjO+ ________ _

HjO- ______

TiO, _____________________ _

P20S 

MnO ___________ _ ______

S _____ _

Ignition loss _ __ ._ __ . _ _ _ _ _ _

Subtotal ___________________

Less O _____ __

Total _____________________

Class __________________________

Insoluble. 

Calculated from reported Fe or P .

Zr ____________________________

Cr __________

(Group Hal) , special-rock category

."bauxite" subordinate) . SiOj/AljO, weight ratio from 0.371 to 1.178; total iron > 30 percent or > AljO, 

by State, county, and stratigraphic position 3 

Chemical analyses

Oregon

12345 678

36Hai 36Hai 36Hai 36Hai 36Hai 36Hai 36Hai 36Hai 36H 

5-63 5-70 24-33 24-34 24-52 24-58 24-66 24-72 2

*35.54 *26.5 32.9 32.4 *35.26

Chemical analyses arranged

Washington

9 10 11

li 46Hai 46Hai 

6-2 37-152 37-151

24.13 11.04 17.77 26.02 20.3 '17.76 

24.05 29.62 30.75 24.03 24.1 22.46 

26.18 32.2 *31.30 27.80 48.1 '31.30 

2.73 _ 1-76

.15 _____ ______

.13 _____ ______

.04

.11 _____ Trace

.03 _____ ______

.04

12.43 11.14

_ _____ 4(28. 3) _____ _____ ______

'.53 ______ ______ ______ ______

14.58 14.0 16.58 12.72 *16.88 _

2.56 _____ ______

6.13 6.63 5.25

.79 _____ ______

.31 _____ _____

___ 20.08 *16.91

2.62 _____ ______

5.72 _____ _ __

.44 _____ *Trace

.05 _____ ______

.18 _____ ______

T .07 $ 6.56 23.40

100.03

_ [103.25] [99.1] [100.0] [100.0] [101.96]

0,38,0 0,62,0 0,42.0 0.35.0 0.46,0 0

'iron oxide. *P. 

4 Not included in total. *At 1.000°-1

Spectrographic analysis of sample 6

_________ 0.01-O.OOllV _________ ___________

_________ .01- .OOl|Cu ________________________

99.68 [99.6] [101.98] J 

,56.0 0.39.0 0.47.0 0

, 100°C , sample air dried .

____ 0.01-O.OOlBa _________

<.001 Ni _________

.09 _____ ______

)9.94 [99.1] [94.92] 

58,0 0.42,0 (0,54)0

'CO,, 

'includes H,O.

___________ <0.001

___________ < .001

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Oregon

1. Columbia County. Miocene and Pliocene. SWi sec. 1, T. 4 N., R. 2 W., 

about 0.5 mile south-southeast of town of Yankton, railroad cut. Sample 

P-3394. ( Libbey, Lowry, and Mason, 1945, p. 1, 5, 26, 48, 49.) 

Bauxitic clay, mottled brown and gray, pisolitic; 2.4 ft thick. Mineralogy. 

Index maps, geologic section.

2. Columbia Count)'. Miocene or younger. NWj sec. 16, T. 4 N., R. 2 W., 

about 0.5 mile north of Spitzenberg, Alder Creek area. Dietz properly. 

Drill hole 36. ( Kelly, 1947, p. 4, 6, £3, figs. 1, 2.) Laterite, lightbrowr. with scattered black specks; averages about 14 ft thick; silt overburden 

averages about 13 ft. Depth 22.0 ft. Bulk density 2.79. Index and geologic 

maps, geologic sections. [Foryanother analysis from same drill hole, see 

sample 77, group D.]

3, 4. Marion County. Miocene and Pliocene. NW* sec. 19, T. 8 S., R. 3 W.,

7-10 miles south of town of Salem. Analysts, L. L. Hoagland and assistants. 

Drillhole 17. ( Corcoran and Libbey. 1956, p. 1, 2, 6, 16, 26, 29, pi. 1.) 

Average thickness 14.4 ft. Tonnage estimated. Index and geologic maps. 

Graph showing variation in chemical composition of each 2-ft interval of 

depth. [For other analyses from same drill hole, see samples 35-38, group 

Ha; samples 10-13, group Hbi.]

3. Bauxitic clay [implied],tan to light-red, white, yellow, red, black 

spots, earthy, gritty; depth 12-14 ft.

4. Bauxitic clay [implied],tan to light-red, earthy, gritty; depth 10-12 ft.

5. Marion County. Miocene and Pliocene. NEi SW.J sec. 28, T. 8 S., R. 3 W., 

about 5 miles south of Salem, Salem Hills area. Analyst, L. L. Hoagland. 

Sample P-3570. ( Libbey, Lowry, and Mason, 1945, p. 4, 5, 72, 74, T7, 

85-88; Corcoran and Libbey, 1356, p. 1, 2. Jj), pis. 1, 2.) [Ferruginous 

bauxite] laterizcd basalt, light-brown, soft, earthy; 4 ft thick. Channel 

sample. Tonnage estimated. Index and geologic maps, geologic sections. 

Possible use: Abrasives, cement, aluminum chemicals, oil refining, 

refractories.

6. Marion County. Miocene and Pliocene. On line sees. 29, 30, T. 8 S., 

R. 3 W., 7-10 miles south of Salem, Salem Hills area. Analyst, under

Oregon Continued

direction of S. S. Goldich; spectrographic analyst, T. C. Matthews. Drill 

hole 14. Lab. No. R2151. ( Corcoran and Libbey, 1956, p. 1-3, 6, J.3. 14, 

pi. 1.) Clay, depth 16-20 ft. Index and geologic maps. [For other analyses 

from same drill hole, see samples 35, 36, group Hbi.]

7. Marion County. Miocene and Pliocene. SEi sec. 35, T. 8 b., R. 3 W., 7-10 

miles south of Salem, Salem Hills area. Analysts, L. L. Hoagland and 

assistants. Drill hole 24. ( Corcoran and Libbey, 1956, p. 1, 2, 6, 19, £5, 

pi. 1.) Ferruginous bauxite, depth 12.5-25 ft; overburden 12.5 ft. Tonnage 

estimated. Index and geologic maps. Possible use: Source of alumina 

[implied], pig iron, ferrotitanium.

8. Marion County. Miocene and Pliocene. NEiSEj sec. 35, T. 8 S., R. 3 W., 

about 6 miles south of Salem, roadcut. Analyst, L. L. Hoagland. Sample 

P-3573. ( Libbey. Lowry, and Mason, 1945, p. 2, 4, 5, 70, 72, 74, _79. 

85-88.) [Ferruginous bauxite] laterized basalt, red, earthy; 3 ft thick. Index 

maps. Possible use: Abrasives, cement, aluminum chemicals, oil refining, 

refractories.

9. Multnomah County. Late Miocene and early Pliocene. SWiSHi sec. 25, T. IN., 

R. 4 E. Analyst, F. H. Neuerberg. Sample C-947. ( Trimble, 1963, p. 3, j!9. 

93, 103, 104, pi. 1.) Ferruginous bauxite, pisolitic. Index and geologic maps, 

geologic section. Possible use: Source of aluminum, quick-setting aluminous 

cement.

Washington

10. Whatcom County. Early Tertiary. Ni sec. 2, T. 39 N., R. 4 E., 4 miles east

of town of Eversoa. Sumas Mountain Iron deposit. Analyst, W. H. Ott. Sample 

4. ( Moen, 1962, p. 105, 109, ^10-112, pis. 1, 4.) Claystone, grayish-brown; 

4.5-ft channel sample. Average bulk density of five samples 3.0. Mineralogy. 

Tonnage estimated. Index and geologic maps, geologic sections. Use: None.

11. Whatcom County. Early Tertiary. NEi sec. 2, T. 39 N., R. 4 E., about Smiles 

southeast of town of Nooksack, west slope of Sumas Mountain. Sample 3. 

( Hodge, 1938a, p. 15-V7; Moen, 1962, p. 105, 109. 112, pi. 4.) Ferruginous 

shale. Tonnage estimated. Index and geologic maps, geologic section. 

Possible use: Pigment.
216 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 15. Analyses of samples from Oregon of clays in which A12O3 +SiO2 + HZO (however determined) is 50 percent or more of the sample (Group Hb) . special-rock category 

[ Bauxite and bauxitic clays ("bauxite" predominant, kaolinite subordinate). SiOj/A^C^ weight ratio < 0.371; total iron <30 percent. Chemical

analyses arranged by county and stratigraphic position]

Chemical analyses

SiO, 

Al,0, 

Fe*D, 

Ti02 

Total __

Class ____ __

1

36Hb3-24

____ ___ _ __ Ji4.6o

_______ ___ _ ___ *45.49

__ _____________ __ S 15.14

___ _ _ _____ _ _ 21.43

___ _ __ _ __ _ __ [96.66]

__ __ ___ 0.45.0

2

36Hb5-29

11.21 

35.32 

S 25.65 

2.68 

4 21.01

[95.87] 

0,40.0

3

36Hb5-33

10.99 

52.73 

3 9.12 

2.06 

4 26.61

[101.51] 

0,44.0

Oregon

4

36Hb5-37

5.09 

44.47 

S 26.25 

2.08 

4 22.69

[100.58] 

0.31,0

5

36Hb5-39

14.46 

43.96 

3 18.60 

3.21 

4 21. 70

[101.93] 

0.45,0

6

36Hb24-29

9.37 

35.74 

29.2 

6.21 

19.48

[100/0] 

0.35,0

7

36Hb24-39

1.55 

53.35 

S 14.17 

2.68 

 28.83

[100.58] 

0,31,0

8

36Hb24-21

3.42 

45.72 

26.8 

7.83 

16.23

[100.0] 

0,22,0

9

36Hb24-23

8.32 

52.32 

13.0 

3.06 

23.30

[100.0] 

0.37.0

10

36Hb24-24

13.39 

36.24 

16.3 

3.38 

30.69

[100.0] 

0,53.0

11

36Hb24-44

3.24 

59.55 

3 3.70 

1.00 

4 32.85

[100.34] 

0,38,0

Oregon Continued

SiO,. __ _

Al,0j 

FejOs 

TiO, _____

Ignition loss 

Total- __

Class ___ _

12

36Hb24-47

_ __ _ _ _ _ 2.55

____ _ __ _______ 52.80

_________________ 3 14.27

________ _ _ __ 2.98

______ 4 28.77

____ ___ _ _ [101.37]

_ _ __ __ 0.33,0

13

36Hb24-51

4.82 

50.23 

S 15.76 

3.57 

4 26.11

[100.49] 

0,34.0

14

36Hb24-57

6.92 

38.83 

29.1 

3.17 

19.50

[97.5] 

0,31.0

15

36Hb24-60

2.23 

50.64 

3 19.41 

2.11 

4 27.07

[101.46] 

0.31,0

16

36Hb24-71

10.65 

35.27 

3 29.46 

4.62 

 19.84

[99.84] 

0,38.0

17

36Hb24-70

4.87 

56.50 

S 1.73 

1.30 

 32. 86

[97.26] 

0,41,0

18

36Hb24-69

11.60 

38.02 

22.3 

5.34 

22.74

[100.0] 

0,42,0

19

36Hb24-82

4 

60 

5 5

31

[100] 

0.37,0

20

36Hb24-73

6.23 

35.87 

29.3 

6.99 

21.61

[100. 0] 

0.32.0

21

36Hb27-l

3.50 

50.90 

3 17. 13 

1.82 

4 28.87

[102.22] 

0,35,0

22

36Hb34-ll

4.70 

47.36 

S 17.43 

3.69 

4 26.81

[99.99] 

0,34.0

Oregon Continued

Si02 _______

A120, .

Fe20, .

TiO, .

23 24

36Hb34-13 36Hb34-19

__________ 5.76 11.48

__________ 39.76 38.40

__________ 3 27.18 S 25.83

__________ _____ 5.31

25

36Hb34-20

6.14 

41.00 

3 29.84

26

36Hb34-30

7.99 

36.47 

*27.93 

3.23

27

36Hb36-10

12.34 

35.05 

29.33 

2.20

Ignition loss 

Total 

Class ___

23

36Hb34-13

. 4 24.60

. L *> ' ^u J 

. 0.34.0 "

24

36Hb34-19

4 21.52 

[102.54] 

0.41.0

25

36Hb34-20

4 23.44 

[100.42] 

0.34,0

26

36Hb34-30

4 23.05 

[98.67] 

0,36,0

27

36Hb36-10

21.12 

[100.04] 

0,42.0

'SiOj may be high because of mixture from 

other parts of drill hole.

2 Includes about 1 percent TiO,.

3 Calculated from reported iron or Fe. 

4 At 1,000°-1,100° C, sample air dried. 

5 Iron oxide.

DESCRIPTIVE NOTES

[Underscored page numbers in reference

Oregon

1. Clackamas County. Pliocene. NWi sec. 3, NEi sec. 4, T. 4S., R. 4E., 

6 miles southeast of town of Estacada. Kiggins and Shearer farms. Auger 

hole 6. ( The Ore.-Bin, 1948, p. 63-65; Oregon Department of Geology and 

Mineral Industries, 1951, p. 15.) [Bauxite clay] bauxite, brown, oolitic; 

depth 13-14 ft. Mineralogy. Index map. Possible use: SiO, too high for 

production of alumina but may be used for other purposes. [For other analyses 

from same drill hole, see samples 11-14, group Ha.]

2. Columbia County. Miocene and Pliocene. [T. 4N., R. 2 W.], about 1 mile 

southeast of town of Spitzenberg. Analyst, L. L. Hoagland. ( Libbey, Lowry, 

and Mason, 1945. p. 1, 2. 4, 5. 26, 57, 58, 86-88.) Ferruginous bauxite, 

red, oolitic. Index maps. Possible use: Source of iron, alumina, titanium 

oxide, and ferrotitanium.

3. County, age, analyst, maps, and use as in sample 2. [T. 4 N., R. 2 W.]. 1 mile 

west of town of Yankton. ( Libbey, Lowry, and Mason, 1945, p. 1. 2, 4, 5, 26. 

63. 86-88.) Ferruginous bauxite.

4. County, age, analyst, maps, and use as in sample 2. [T. 5 N., R. 1 W.],

about 1.5 miles south of Deer Island Post Office. McBride property. ( Libbey, 

Lowry. and Mason, 1945, p. 1, 2, 4, 5, 26, 57. 86-88.) Ferruginous bauxite, 

red, porous,granular; float sample.

5. County, age, analyst, and maps as in sample 2. Sec. 18, T. 7 N., R. 2 W.,

west of town of Rainier, roadcut. Sample P-3400. ( Libbey, Lowry, and Mason, 

1945, p. 1, 4, 5, 27, 54, 55, 56, 87, 88.) Grab sample of hard gibbsitic 

pieces of ferruginous bauxite. Silt overburden. Measured section.

6. Marion County. Miocene and Pliocene. NWi sec. 18, T. 8 S., R. 3 W.,

7-10 miles south of town of Salem, Salem Hills area. Analysts, L. L. Hoagland 

and assistants. Drillhole 5. ( Corcoran and Libbey, 1955, p. 23-J27; Corcoran 

and Libbey, 1956, p. 1, 2, 6, 19, 35, pi. 1.) Ferruginous bauxite, depth 

2-10 ft; overburden 2 ft. Tonnage estimated. Index and geologic maps. 

Possible use: Source of alumina, ferrotitanium, pig iron.

7. Marion County. Miocene and Pliocene. SWi sec. 19, T. 8 S., R. 3 W., about 5 

miles southwest of Salem. Analyst, L. L. Hoagland. Sample P- 3551. (Libbey, 

Lowry. and Mason. 1945, p. 2, 4, 5, 72. 74-^76. 85-88.) Gibbsitic float, 

brown, porous, granular, residual grains of magnetite. Index maps. Possible 

use: Abrasives, cement, aluminum chemicals, oil refining, refractories; source 

of alumina, iron, titanium oxide, ferrotitanium.

indicate source of analysis]

Oregon Continued 

8-10. Marion County. Miocene and Pliocene. SWi sec. 22. T. 8 S.. R. 3 W..

7-10 miles south of Salem, Rosed ale Church area. Analysts, L. L. Hoagland 

and assistants. Drill hole 22. ( Corcoran and Libbey, 1956. p. 1, 2, 6, 20, 

j!7, 29, pis. 1, 2.) Average thicknet* 14.4 ft. Mineralogy. Tonnage 

estimated. Index and geologic maps, geologic sections. Graph showing 

variation in chemical composition for each 2-ft interval of depth. Possible 

use: Source of alumina, ferrotitanium, pig iron. [For other analyses from 

same drill hole, see samples 17-25, group Hbi.]

8. Sample 4. Ferruginous bauxite, tan, granular, gritty, depth 

8-10 ft.

9. Sample 2. [Bauxite] ferruginous bauxite, brownish-red, earthy, 

gritty, porcelaneous; numerous fragments of gibbsite; depth 4-6 ft.

10. Sample 1. Ferruginous bauxite, brownish-red; numerous fragments of

porcelaneous gibbsite; depth 2-4 ft.

11-13. Marion County. Miocene and Pliocene. T. 8 S., R. 3 W., about 5 miles 

south of Salem, roadcut. Analyst, L. L. Hoagland. ( Libbey, Lowry, and 

Mason, 1945, p. 2, 4, 5, 72, 74, T7. 78, 85-B8.) Index maps. Possible 

use: Abrasives, cement, aluminum chemicals, oil refining, refractories; 

source of alumina, ferrotitanium, iron, titanium oxide.

11. Near center sec. 26. Sample P-3546. Bauxite nodule, light-colored.

12. Near center Wi sec. 27. Gibbsitic material, light-colored, porous; 

1 ft thick.

13. NEiSWi sec. 28. Sample P-3549. Gibbsitic nodule, brown, porous, 

granular. Thin-section description.

14. Marion County. Miocene and Pliocene. NWi sec. 29, T. 8 S., R. 3 W., 

7-10 miles south of Salem, Salem Hills area. Analysts, L. L. Hoagland 

and assistants. Drillhole 2. ( Corcoran and Libbey, 1955, p. 23-^7; 

Corcoran and Libbey, 1956, p. 1, 2, 6, 21. 35, pi. 1.) Ferruginous 

bauxite; depth 2-14.5 ft; overburden 2 ft. Mineralogy. Tonnage estimated. 

Index and geologic maps. Possible use: Source of alumina, ferrotitanium, 

pig iron.

15. Marion County. Miocene and Pliocene. Near center sec. 30, T. 8 S., 

R. 3W., about 6 miles southwest of Salem. Analyst, L. L. Hoagland. 

( Libbey, Lowry, and Mason, 1945, p. 2, 4. 5, 71, 72, 74-J6, J79, 85-88.) 

Bauxite, gibbsitic, brownish-white, porous, granular; contains residual
ANALYSES OF SAMPLES 217

DESCRIPTIVE NOTES 

Oregon Continued

magnetite. Float sample. Mineralogy. Index maps. Possible use: Abrasives, cement, aluminum chemicals, oil refining, refractories; source of 

alumina, iron, titanium oxide, and ferrotitanium.

16, 17. County, age, analyst, reference, maps, and use as in sample 15. NE;SE; 

sec. 35, T. 8 S., R. 3 W., about 6 miles south of Salem, roadcut.

16. Sample P-3537. [Ferruginous bauxite] laterized basalt; upper 5.5 ft.

17. Sample P-3532. Bauxite nodule, light-colored, slightly porous. 

Mineralogy.

18. Marion County. Miocene and Pliocene. NW? sec. 35, T. 8S., R. 3W.,

7-10 miles south of Salem, Salem Hills area. Analysts, L. L. Hoagland and 

assistants. Drill hole 21. ( Corcoran and Libbey, 1955, p. 23-^7, 28; 

Corcoran and Libbey, 1956, p. 1, 2, 6, 29, 35, pi. 1.) Ferruginous bauxite; depth 4-18 ft; overburden 4 ft. Tonnage estimated. Index and geologic 

maps. Graph showing variation in chemical composition for each 2-ft 

interval of depth. Possible use: Source of alumina, pig iron, ferrotitanium.

19. Marion County. Miocene and Pliocene. [T. 8S., R. 3W.], south of Salem. 

Salem Hills deposit. (Corcoran, 1962, p. 25,^6-28.) Bauxite nodule, 

dense, porcelaneous, representative sample. Mineralogy. Index map. 

Possible use: Source of alumina, iron.

20. County, age, analysts, area, reference, maps, graph, and use as in sample 18. 

Si sec. 1, T. 9 S., R. 3 W., 7-10 miles south of Salem. Drill hole 13. 

Ferruginous bauxite; depth 8-10 ft; overburden 8 ft. Tonnage estimated.

21. Polk County. Miocene and Pliocene. SEi sec. 8, T. 7 S.. R. 3 W., about 

2 miles northwest of Salem, Wallace Hill. Analyst, L. L. Hoagland. 

( Libbey. Lowry, and Mason, 1945. p. 2, 4, 5, 72, 74, J5, 85-88.) 

Bauxitic float, porous, granular. Index maps. Possible use: Abrasives, 

cement, aluminum chemicals, oil refining, refractories; source of 

alumina, iron, titanium oxide, ferrotitanium.

22. Washington County. Miocene and Pliocene. NWi sec. 27, T. 2N.,

Continued

Oregon Continued

R. 2 W. Anderson property. Analyst, L. L. Hoagland; collectors, 

J. F. Cleaver. L. C. Swanson. Sample P-3366. ( Libbey, Lowry, and 

Mason, 1945, p. 1, 2, 4, 5, 25, 45, 86-88.) [Limonitic material] ferruginous bauxite, pisolitic, earthy. Mineralogy. Index maps. Possible use: 

Source of iron, alumina, titanium oxide, ferrotitanium.

23-26. Washington County. Miocene and Pliocene. T. 2 N., R. 3 W., 14 miles 

north of town of Hillsboro. Hutchison-Nixon properties. Analyst, 

L. L. Hoagland; collectors, J. F. Cleaver, L. C. Swanson. ( Libbey, 

Lowry.and Mason, 1945, p. 1, 2, 4, 5, 18, 20, 24, 32-34, 35-38, 41, 

86-88.) Tonnage estimated. Index maps. Possible use: Source of iron, 

alumina, titanium oxide, ferrotitanium. 

23-25. NW*SW? sec. 1. Drill hole 50. Overburden 20 ft. Geologic

sections, detailed measured section. [For other analyses from 

same drill hole, see sample 114, group D; sample 45, group Ha; 

samples 47-49, group Hbi.]

23. Sample 13. [Ferruginous bauxite], varicolored, spotted, 

gritty, lumpy, firm; depth 45-49 ft.

24. Ferruginous bauxite, brown, gritty, slightly oolitic; depth 

36.5-39 ft.

25. Sampled. [Ferruginous bauxite], red-brown, slightly

oolitic, firm; depth 36-36.5 ft.

26. SEiSW? sec. 1. Drill hole 44. [Ferruginous bauxite],oolitic, 

9 ft thick. [For another analysis from same drill hole, see 

sample 46, group Hbi.]

27. Yamhill County. [Miocene or younger.] SEiNW? sec. 3, T. 3S., R. 2 W. 

near town of Newberg. Sample 26825. ( Oregon Department Geology and 

Mineral Industries, 1961, p. 122.) Ferruginous bauxite; depth 5-7 ft; overburden. [For other analyses from same drill hole, see samples 62, 63, 

group Hbi and sample 48, group Fe.]

Table 16. Analyses of samples from Oregon and Washington of clays in which AltO3 + SiO2 + HgO ( however determined) is 50 percent or more of the sample ( Group Hbi),

special-rock category

[ Bauxite and bauxitic clays ( "bauxite" predominant, kaolinite subordinate). SiO,/Al,O, weight ratio <0.371; total iron> 30 percent. Chemical analyses arranged by

State, county and stratigraphic position ]

SiO, ___________

AljO, __________

Fe202 

TiO, ___________

Ignition loss __ ____

Total _______

Class ___________

1

36Hbi 

5-62

11.5

31

*30

_ 2 20

5

_ [98]

0,41,0

2

36Hbi 

5-78

6.7 

35.5 

'37.8

5.7 

16.8

[102.5] 

0.28,0

3

36Hbi 

5-31

2.32 

33.50 

Us. 27

2.58 

4 17. 73

[101.40] 

0.22,0

4

36Hbi 

5-32

6.29 

38.80 

*33.55

1.49 

4 20. 65

[100.78] 

0.31,0

5 6

36Hbi 36Hbi 

5-38 5-30

6.60 

35.56 

'34.63

4.50 

4 18.71

[ 100 .00 ] 

0.30,0

9.3 

30.9 

'36.8

6.40 

16.5

[99.9] 

0,32,0

Oregon

7

36Hbi 

5-61

10.7 

33.9

'(16.1) 

4.70 

18.5

[99.0] 

0,37,0

8

36Hbi 

5-4

7.2 

37.2 

J 31.5 

*(17.0) 

5.2 

18.5

[99.6] 

0,31,0

9

36Hbi 

5-6

1.77 

30.79 

42.32 

1.66 

5.16 

S .13

'99.23 

0,21.0

10

36Hbi 

24-35

5.40 

36.45 

31.8

7.44 

18.91

[100.0] 

0,28,0

11

36Hbi 

24-36

4.42 

33.72 

35.2

7.39 

19.27

[100.0] 

0,27.0

12

36Hbi 

' 24-37

8.44 

32.64 

33.0

6.93 

18.99

[100.0] 

0,33,0

13

36Hbi

24-85

7.92 

34.36 

33.1

7.00 

17.62

[100.0] 

0,31,0

Calculated from reported Fe. 

! Reported as circa 20 percent.

Not included in total. 

4 At 1,000°-1,100°C, sample air dried.

'Amounts in percent: FeO = 0.80, MgO = 0.03, CaO=0.01, Na,O = 0.02, 

K,O = 0.01, HjP+ = 16.27, PtO5 = 0.22, MnO = 0.02, S = 0.04, subtotal = 99.25, 

less O = 0.02.

Oregon

1. Columbia County. [Miocene and Pliocene. T. 4 N., R. 1 W.], near town 

of St. Helens. ( Libbey, Lowry, and Mason, 1946, p. 246, 249, 253. 258, 

259.) Ferruginous bauxite, light-brown through red to dark-brown, upper 

part oolitic or pisolitic, lower part earthy to nodular; 6-20+ ft thick, overburden 1-50+ft thick. Tonnage estimated. Index map. Possible use: 

Source of alumina, iron, titanium.

2. Columbia County. Miocene and Pliocene [ implied]. Sec. 1, T. 4 N., 

R. 2 W., about 3 miles west of St. Helens. Yankton cut. ( Bell, 1945, 

p. 1, 4, £, 9, fig. 1, pi. 2.) Laterite, reddish-brown mottled with gray, 

pisolitic, indurated; average thickness 10 ft, overburden averages 30 ft. 

1 Channel sample. Tonnage estimated. Index and geologic maps, geologic

sections. Possible use: None. 

3-5. Columbia County. Miocene and Pliocene. Analyst, L. L. Hoagland.

( Libbey, Lowry, and Mason, 1945, p. 1, 2, 4, 5, 26, j>3, 57, 58, 86-88.) 

Index maps. Possible use: Source of alumina, ferrotitanium, iron, 

titanium oxide.

3. [T. 4N..R. 2W.], about 2 miles east of town of Spitzenberg. 

Ferruginous bauxite, oolitic.

4. [T. 4 N., R. 2 W.], about 3.5 miles north-northwest of town of 

Scappoose. Oester property. Ferruginous bauxite, oolitic; 2 ft 

channel sample. Former use: Paint pigment.

5. [T. 5 N. , R. 1 W.I, 2.5 miles west of Columbia City, roadcut.

Ferruginous bauxite; 4.5-ft vertical channel sample; upper 3 ft red,

oolitic; lower 1.5 ft nodular.

6-8. Columbia County. Miocene or younger. NWi sec. 16, T. 4N., R. 2W., 

about 0.5 mile north of Spitzenberg, Alder Creek area. Dietz property.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued

( Kelly, 1947, p. 4. 6, 15, ^9, 20, figs. 1, 2.) Laterite, dark-red, oolitic 

or pisolitic; averages about 14 ft thick; silt overburden averages about 

13 ft thick. Index and geologic maps, geologic sections.

6. Drill hole 14. Depth 14.0 ft. Bulk density 2.98.

7. Drill hole 25. Depth 6.0 ft. Bulk density 2.87.

8. Drill hole 29. Depth 11.0 ft. Bulk density 2.94.

9. Columbia County. Late Miocene and early Pleistocene. NWjSWi sec. 5, 

T. 3 N., R. 2 W. Alcoa Mining Contest pit. Analyst, F. H. Neuerburg. 

Sample C-948. ( Trimble, 1963, p. 3, 87, J39, 94, 103, 104.) Laterite 

crust, pisolitic. Index map. Possible use: Source of aluminum, iron; 

quick-setting aluminous cement.

10-13. Marion County. Miocene and Pliocene. NWi sec. 19, T. 8S., R. 3 W., 

7-10 miles south of town of Salem, Salem Hills area. Analysts, 

L. L. Hoagland and assistants. Drill hole 17. ( Corcoran and Libbey, 1956, 

p. 1, 2. 6. ^6, 29, 35, pi. 1.) Average thickness 14.4 ft. Tonnage 

estimated. Index and geologic maps. Graph showing variation in chemical 

composition for each 2 ft interval of depth. Possible use: Source of 

alumina, pig iron, ferrotitanium. [For other analyses from same drill hole, 

see samples 35-38, group Ha and samples 3, 4, group Hai.]

10. Sample 4. Bauxite, yellow-brown to light-red, earthy, gritty; depth 

8-10 ft.

11. Sample 3. Bauxite, yellow-brown to light-red, earthy, gritty, firm, 

dry; depth 6-8 ft.

12. Sample 2. Bauxite, yellow-brown, earthy, gritty, firm; depth 

4-6 ft.

13. Ferruginous bauxite, depth 2-12 ft.
218 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Si02 __ _______

A120, .

Fe_0, _.

TIO| __

Total ___ _

Class _____ _ __

SiO, __ __ __

A1.0, __________

Fe_O| ______ _

FeO _________

MgO ______ _

CaO ___________

Na_0 __ _

K20 ____________

tyO+ ____ ____

H_0- ___________

TiO,_ _______ __

P_05 _ 

MnO_ __________

Total _______

Class ____________

SiO2 __ _______ 

A120, 

Fe_0, __ _.

H.OTiO| _

P205 __ __

Total __ __ .

Class ____________

14

36 Hbi 

24-40

8.13

34.09

31.2

6.76

19.82

C 100.0]

0,34.0

27

36Hbi 

24-26

5.79

33.80

32.7

7.19

20.52

[100.0]

0,30,0

40

36Hbi 

24-65

7.51

33.85

32.0

20.64

[100.0]

0,33,0

15

36Hbi 

24-42

8.14

32.10

30.0

6.65

22.94

[99.8]

0,37,0

28

36HM 

24-25

5.46

31.25

33.3

6.69

23.28

[100.0]

0,33,0

41

36Hbi 

24-81

6

35

*32

6

21

[100]

0,31,0

16

36Hbi 

24-43

4.14

34.96

30.8

6.85

25.60

[102.4]

0,33,0

29

36HM 

24-46

7.46

31.20

33.2

6.80

21.34

[100.0]

0,34,0

42

36Hbi 

24-27

6.7

35.0

31.5

6.5

20.2

[99.9]

0,31,0

17

36Hbi 

24- ia

2.40

32.16

41.4

7.20

16.84

[100.0]

0,21,0

30

36Hbi 

24-53

10.55

37.46

'30.35

2.78

2 19.80

[100.94]

0,37,0

43

36Hbi 

34-47

5.12

34.08

'43.49

*16.57

[103.38]

0,25,0

special-rock category Continued

Chemical analyses Continued

Oregon Continued

18 19 20

36Hbi 36HW 36Hbi 

24-14 24-15 24-16

2.72 2.98 4.96

33.32 35.16 35.60

35.5 37.8 36.7

6.56 7.84 5.95

21.90 16.22 16.79

[100.0] [100.0] [100.0]

0,26,0 0,21,0 0,25,0

Oregon Continued

31 32 33

36Hbi 36Hbi 36Hbi 

24-55 24-54 24-67

8.75 5.85 4.4

35.51 32.84 38.6

30.9 32.7 32.6

6.20 6.58 5.16

18.64 22.03 20.6

[100.0] [100.0] [101.4]

0,33,0 0,32,0 0,28,0

Oregon Continued

44 45 46

36HW 36Hbi 36Hbi 

34-6 34-9 34-28

5.70 8.95 8.89

36.48 31.85 35.58

'33.25 '37.11 '31.27

*(17.5) *(19.0) *(19.15)

'.321 _

*19.8 2 18.0 *22.34

[95.2] [100.7] [101.54]

0.29,0 0,33,0 0.37,0

1

21

36Hbi 

24-17

4.70

28.94

37.1

7.70

22.80

[101.2]

0,31,0

34

36Hbi 

24-56

5.28

36.47

32.3

6.13

19.82

[100.0]

0,29,0

47

36Hbi 

34-12

8.56

34.96

'32.15

*21.96

[97.63]

0,36,0

22

36Hbi 

24-18

7.00

33.92

37.2

6.85

15.03

[100.0]

0,27,0

35

36Hbi 

24-59

4.81

30.02

33.14

2.79

.23

.13

.03

.07

17.15

2.59

6.76

1.51

.36

99.59

0,28,0

48

36Hbi 

34-16

3.64

36.92

'32.95

*23.65

[97.16]

.0.30,0

23

36Hbi 

24-19

5.38

35.80

36.3

6.80

15.72

[100.0]

0,25,0

36

36Hbi 

24-63

6.48

32.31

36.9

6.00

18.31

[100.0]

0,29,0

49

36Hbi 

34-17

8.70

34.68

'32.16

4.18

2 19.04

[98.76]

0,34,0

24

36Hbi 

24-20

2.18

36.80

31.0

7.40

22.62

[100.0]

0,26,0

37

36Hbi 

24-62

4.28

37.85

30.9

6.94

20.02

L" 100.0]

0,27,0

50

36Hbi 

34-29

9.97

35.81

'33.12

*(19.83)

2 21. 14

[100.04]

0,38,0

25

36Hbi 

24-22

10.96

29.68

35.9

9.90

13.56

[ 100 .0 ]

0,32,0

38

36Hbi 

24-61

4.14

37.37

32.4

7.14

18.95

[100.0]

0,26,0

51

36Hbi 

34-35

4.00

42.00

'31.98

20.8

[98.8]

0,28.0

26

36HM 

24-27

6.03

35.90

33.8

7.20

16.80

[99.7]

0.27,0

39

36Hbi 

24-64

10.63

31.01

32.7

6.91

18.75

[100.0]

0,37,0

52

36Hbi 

34-36

5.34

42.12

'32.60

20.8

[100.9]

0.30,0.

'Calculated from reported Fe cr P.

*At 1.000°-1, lOQoC, sample air dried, 

'iron oxide.

*At 100°-105°C, not included in total.

Spectrographic analysis of sample 35 General spectrographic analysis for locality 5, samples 44, 45

V ____________

Cr ___________

Ni _____ __

Cu _________

____ _ ___ 0.01 -0.001

___ ____ < .001

____ __ _ .01 - .001

__________ .01 - .001

Sr ______

Zr ______

Ba _____

_____ .01 -0.001

Mg ______

Ti __ ___

v

Cr ___ _

Mn _ __

_____ 1.0 -10

_______ .01 - .1

_____ _ .001- .01

__ ____ .01 - .1

Sr _____ ____

Zr __________

ba_ _____

__________ 0.001-0.01

_______ __ .01 - .1

. ________ <.001

._ _______ .001- .01
ANALYSES OF SAMPLES 219

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Oregon Continued Oregon Continued

14-26. Marion County. Miocene and Pliocene. T. 8 S., R. 3 W., 7-10 miles

south of town of Salem, Salem Hills area. Analysts, L. L. Hoagland and 

assistants. ( Corcoran and Libbey, 1956, p. 1, 2. 6, 20, 22, 24, 27, 28, 

29, 35, pis. 1, 2.) Average thickness 14.4 ft. Tonnage estimated. 

Index and geologic maps. Possible use: Source of alumina, ferrotitanium, 

pig iron.

14. SWi sec. 19. Drill hole 7. ( Corcoran and Libbey, 1955, p. 

23-27.) Ferruginous bauxite, depth 2-18 ft, overburden 2 ft.

15. On line sees. 20, 21. Drill hole 25. Ferruginous bauxite, depth 

12.5-25 ft, overburden 12.5 ft.

16. NE$ sec. 21. Drill bole 26. Ferruginous bauxite, depth 6-20 ft,

overburden 6 ft. Geologic sections.

17-25. SWi sec. 22. Drill hole 22. Mineralogy. Geologic sections. 

Graph showing variation in chemical composition for each 2 ft 

interval of depth. [For other analyses from same drill bole, 

see samples 8-10, group Hb.]

17. Sample 12. Ferruginous bauxite, tan, gritty; depth 24- 

25ft.

18. Sample 11. Ferruginous bauxite, reddish-brown, gritty, 

earthy; depth 22-24 ft.

19. Sample 10. Ferruginous bauxite, reddish-brown, gritty, 

earthy; depth 20-22 ft.

20. Sample 9. Ferruginous bauxite, reddish-brown, gritty, 

earthy, slightly clayey; depth 18-20 ft.

21. Samples. Ferruginous bauxite, reddish-brown, gritty, 

earthy, slightly clayey; depth 16-18 ft.

22. Sample 7. Ferruginous bauxite, reddish-brown, gritty, 

earthy, damp; depth 14-16 ft.

23. Sample 6. Ferruginous bauxite, reddish-brown, gritty, 

earthy; depth 12-14 ft.

24. Sample 5. Ferruginous bauxite, tan, granular; depth 

10-12 ft.

25. Sample 3. Ferruginous bauxite, grayish-brown to reddishbrown; contains fragments of gibbsite; depth 6-8 ft. 

26. SEi sec. 22. Drill hole 23. Ferruginous bauxite, depth 4-32 ft, 

overburden 4 ft. Geologic sections, measured section.

27. Marion County. [Miocene and Pliocene. T. 8 S., R. 3 W.], about 7 miles 

south of Salem, Salem Hills area. Drill hole 23. ( Corcoran and Libbey, 

1955, p. 23-27.) Ferruginous bauxite, depth 4-32 ft. Index and geologic 

maps.

28, 29. County, age, locality, analysts, reference, maps, and use as in samples 

14-26. Average thickness 14.4 ft. Tonnage estimated.

28. SEi sec. 22. Drill hole 27. Ferruginous bauxite, depth 2-20 ft, 

overburden 2 ft. Geologic sections.

29. NWi sec. 27. Drill hole 20. ( Corcoran and Libbey, 1955, p. 

23^27.) Ferruginous bauxite, depth 8-21 ft, overburden 8 ft. 

Geologic sections.

30. Marion County. Miocene and Pliocene. NEi SWi sec. 28, T. 8S.,

R. 3 W., about 5 miles south of Salem, roadcut. Analyst, L. L. Hoagland. 

Sample P-3571. ( Libbey, Lowry, and Mason, 1945, p. 2, 4, 5, 72, 74, 

T7, 85-88; Corcoran and Libbey, 1956, p. 1, 2, IS. pis. 1, 2.) [Ferruginous bauxite], laterized basalt, brown with limonitic and gibbsitic 

streaks; contains residual magnetite grains. Channel sample of upper 5 ft. 

Tonnage estimated. Index and geologic maps, geologic sections. Possible 

use: Abrasives, cement, aluminum chemicals, oil refining, refractories; 

source of alumina, iron, titanium oxide, ferrotitanium.

31-40. Marion County. Miocene and Pliocene. T. 8S., R. 3 W., 7-10 miles 

south of Salem, Salem Hills area. Analysts [except samples 33, 35], 

L. L. Hoagland and assistants. (Corcoran and Libbey, 1956, p. 1, 2, 6, 

12, J.3. 15, 18, 19, 29, 35, 40, pis. 1. 2.) Average thickness 14.4 ft. 

Tonnage estimated. Index and geologic maps. Possible use: Source of 

alumina, ferrotitanium, pig iron.

31. SE4 sec. 28. Drillhole 1. ( Corcoran and Libbey, 1955, p. 

23-27, 28.) Ferruginous bauxite, depth 2-20 ft, overburden 

2 ft. Geologic sections. Graph showing variation in chemical 

composition for each 2-ft interval of depth.

32. SEi sec. 28. Drillhole 18. ( Corcoran and Libbey, 1955, p. 

23^27.) Ferruginous bauxite, depth 4-18 ft, overburden 4 ft. 

Geologic sections.

33. Ni sec. 29. Ferruginous bauxite.

34. NEi sec. 29. Drill hole 11. ( Corcoran and Libbey, 1955, p. 

23-27, 28.) Ferruginous bauxite, depth 2-21 ft, overburden 

2ft.

Graph showing variation in chemical composition for each 2-ft 

interval of depth. 

35, 36. On line sees. 29, 30. Drill hole 14. Ferruginous bauxite. [For

another analysis from same drill hole, see sample 6, group Hai.]

35. Analyst, under direction of S. S. Goldich; spectrographic 

analyst, T. C. Matthews. Depth 2-6 ft.

36. ( Corcoran and Libbey, 1955, p. 23-27.) Depth 2-8 ft.

37. SWi sec. 30. Drill hole 15. ( Corcoran and Libbey, 1955, p.

23-27.) Ferruginous bauxite, depth 2-24 ft. Log of drill hole. 

Differential thermal analysis curve for depth 22-24 ft. Graph 

showing variation in chemical composition for each 2-ft interval 

of depth.

38. NWi sec. 33. Drillhole 16. ( Corcoran and Libbey, 1955, p. 

23-27.) Ferruginous bauxite, depth 2-22 ft, overburden 2 ft.

39. NWi sec. 33. Drill hole 8. ( Corcoran and Libbey, 1955, p. 

23^27.) Ferruginous bauxite, depth 2-8 ft, overburden 2 ft.

40. NW* sec. 34. Drill hole 19. ( Corcoran and Libbey, 1955, p. 

23-27.) Ferruginous bauxite, depth 8-14 ft, overburden 8 ft.

41. Marion County. Miocene and Pliocene. [T. 8 S., R. 3 W.], south of Salem. 

Salem Hills deposit. (Corcoran, 1962, p. 25, 26-28.) [Ferruginous 

bauxite], earthy; average thickness 14.4 ft. Mineralogy. Index map. 

Possible use: Source of alumina, iron.

42. Marion County. Miocene and Pliocene. [T. 8 S., R. 3 W.], 7-10 miles

south of Salem, Salem Hills area. Analysts, L. L. Hoagland and assistants. 

( Corcoran and Libbey, 1956, p. 1, 2, 6, 35, pis. 1, 2.) Ferruginous 

bauxite. Weighted average of drill hole samples. Average thickness 14.4 

ft, average overburden 4.4 ft. Tonnage estimated. Index and geologic 

maps, geologic sections. Possible use: Source of alumina, ferrotitanium, 

pig iron.

43. Washington County. Miocene and Pliocene. NWi sec. 2, T. IN., R. 2 W. 

Berger deposit. Analyst, L. L. Hoagland; collectors, J. F. Cleaver, 

L. C. Swanson. ( Libbey, Lowry. and Mason, 1945, p. 1, 2, 4, 5, 25, 

45.) Ferruginous bauxite, oolitic. Float sample. Index maps. Possible 

use: Source of alumina and iron.

44, 45. Washington County. Miocene and Pliocene. Ni sec. 6, T. 2 N., R. 2 W. 

Hendrickson farm. Analyst, L. L. Hoagland; spectrographic analyst, 

E. W. Miller; collectors, J. F. Cleaver, L. C. Swanson. Locality 5. 

( Libbey, Lowry, and Mason, 1944, p. 1-3, 7, 10, 11, 13; Libbey, Lowry, 

and Mason, 1945, p. 1, 2, 4, 5, 20, 25, 29-31, 86-88.) Mineralogy. 

Tonnage estimated. Index maps. Possible use: Source of alumina, 

ferrotitanium, iron, titanium oxide.

44. Old railroad cut. Sample P-2473. Ferruginous bauxite, reddish-brown, 

hard; 6 ft thick. Measured section.

45. Ferruginous bauxite. Arithmetical average analysis of samples from 

29 drill holes.

46-50. Washington County. Miocene and Pliocene. T. 2 N., R. 3 W., 14 miles 

north of town of Hillsboro. Hutchison-Nixon properties. Analyst, 

L. L. Hoagland; collectors, J. F. Cleaver, L. C. Swanson. ( Libbey, 

Lowry, and Mason. 1945, p. 1, 2. 4. 5, 24, 32-36, 40, 86-88.) [Ferruginous bauxite] , oolitic and pisolitic. Tonnage estimated. Index maps. 

Possible use: Source of alumina, ferrotitanium, iron, titanium oxide. 

46. SEiSWi sec. 1. Drill hole 44. Depth 22-34 ft. [For another

analysis from same drill hole, see sample 26, group Hb.] 

47-49. NWisWjsec. 1. Drill hole 50. Geologic sections, detailed

measured section. [For other analyses from same drill hole, see

sample 114, group D; sample 45, group Ha, and samples 23-25,

group Hb.]

47. [Ferruginous bauxite], varicolored; depth 49-50 ft.

48. [Ferruginous bauxite], brick-red, sandy, nonoolitic, 

firm; depth 42-43 ft.

49. [Ferruginous bauxite], brick-red, sandy, slightly oolitic,

firm; depth 41-42 ft. 

50. NWisWj sec. 1. Drill hole 53.

51, 52. Washington County. Miocene and Pliocene [implied]. SE.j sec. 1, T. 2N., 

R. 3 W. Hutchinson farm. ( Libbey, Lowry, and Mason, 1944, p. 1-3, 9, 

16, 17.) Drill hole samples. Index maps, detailed measured section. 

Possible use: Source of iron and alumina. [For another analysis from same 

drill hole, see sample 53, this group.]

51. Sample P-2541. Ferruginous bauxite, brown and yellow-brown, pebbly, 

2 ft thick; depth 17.5 ft.

52. Sample P-2540. Ferruginous bauxite, 1 ft thick; depth 16.5 ft.
220 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 16. Analyses of samples from Oregon and Washington of clays in which Al^)s+SiOj+2L«9 (however determined) is 50 percent or more of the sample (Group Hbi),

special-rock category Continued

Chemical analyses Continued

Oregon Continued

SiO, ___________

Ai.ru

Fe.0, 

FeO _____________

H,QTiQ, _____________

p.n.

s

Ni _______________

Cr.0, ____________

Misc. ____________

Total _________

Class _____________

53

36Hbi 

34-37

______ 5.00

______ 37.24

______ '34.55

21.22

 [98.01]

______ 0.31.0

54

36Hbi

34-42

3.39 

30.48 

'41.57

4.65

*18.51

[98.60] 

0.24.0

55

36Hbi 

34-43

4.25 

31.44 

'41. 91

4.81

*18.17

[100.58] 

0,25.0

56

36Hbi 

34-44

6.42

40.28

'31.55

4.49

*18.22

[100.96] 

0.29.0

57

36Hbi 

34-27

8.88 

31.40 

'35.02

*20.41

[95.71] 

0,35.0

58

36Hbi 

34-1

7.0 

27.0 

25.0 

5.4

*18.0 

3.2

.3

4 2.1

12.0

[100.0]

59

36Hbi 

34-2

7.83 

36.21 

'37.82

*19.74

'.311

[101.91]

60

36Hbi 

34-3

8.47 

32.96 

'34.99

2 23 .43

'.389

[100.24]

61

36Hbi 

34-4

8.58 

34.30 

'35.52

'(21.11) 

4.46 

'.332

18.00

[101.19]

62

36Hbi 

36-9

4.64 

34.10 

37.70

3.80

19.60

[99.84] 

0.27,0

63

36Hbi 

36-8

4.40 

30.70 

43.10

.63

21.16

[99.99] 

0.29.0

Washington

64

46Hbi 

19-36

9.7 

38.2 

'46.86

'.15

.040 

.27 

1.39

[96.6] 

0,18.0

'Calculated from reported Fe or P.

*H,0(-1100C).

$ H,0(-110«C) , not included in total.

4 Includes CaO, MgO, MnO, SOj and rare elements. 

H_O = 16.00 percent, Mn = 2.00 percent, P = 0.130 percent, 

S = Trace (Zapffe, 1949, pi. 3.) .

*At 1.000e-l,100«C ( sample air dried.

Spectrographic analysis of sample 58

B _

V ____

Cr ____________

______________ < 0.001

___ _ _________ .10 -.01

______________ .10 -.01

Mn _______________

As ______________ .

Sr ____________ .

. ____________ .10- .01

. ____________ .01- .001

Zr_ ______ _____

Ba _ _____________ .10 - .01

54,55.

56.

57.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Oregon Continued

Washington County. Miocene and Pliocene [implied]. SEi sec. 1, T. 2 N., 

R. 3 W. Hutchinson farm. Sample P-2539. ( Ubbey, Lowry.and Mason, 

1944, p. 1-3, 9.16,J_7.) Ferruginous bauxite, yellow-brown with white 

fragments, some oolites; 2 ft thick; depth 14.5 ft. Index maps, detailed 58-61. 

measured section. Possible use: Source of iron and alumina. [For other 

analyses from same drill hole, see samples 51, 52, this group.]

Washington County. Miocene and Pliocene. T. 2 N., R. 3 W., about

3 miles north of town of Wilkesboro. Davies property. Analyst, 62,63. 

L.L. Hoagland; collectors, J.F. Cleaver, L.C. Swanson. ( Libbey, Lowry, 

and Mason, 1945, p. 1.2,4,5,24,46,47,86-88.) [Ferruginous bauxite.] 

Composite float sample of oolitic and nodular bauxite. Index maps. 

Possible use: Source of alumina, iron, titanium oxide, ferrotitanium.

54. NEi sec. 19. 55.SEi sec. 19.

County, age, analyst, collectors, reference, maps, and use as in samples 

54.55. [T. 2N..R. 3W.], about 1.5 miles north northeast of Davies. 

[Ferruginous bauxite], float sample.

County, age, analyst, collectors, maps, and use as in samples 54, 55. 

NWiSWi sec. 35. T. 3N.. R. 3 W., 14 miles north of Hillsboro.

64.

Oregon Continued

Hutchison-Nixon properties. Drill hole 61. ( Ubbey, Lowry, and Mason, 

1945, p. 1,2,4,5,24,32.33,35,36,39,43.86-88.) [Ferruginous bauxite], 

oolitic and pisolitic. Tonnage estimated. Geologic section. 

Washington County. [T. 2 N., R. 3 W.], about 12 miles north of Hillsboro. 

Hillsboro deposit. ( Zapffe. 1949, p. 61-63,64,65,pi. 3_.) General: 

Laterite, oolitic to nodular; thickness 1-20 ft, overburden 1-40 ft. 

Mineralogy. Tonnage estimated. Possible use: Source of alumina, iron.

Yamhill County. SEiNWi sec. 3, T. 3 S., R. 2 W., near town of Newberg. 

( Oregon Department of Geology and Mineral Industries, 1961, p. 122.) 

Ferruginous bauxite, overburden 6 ft. [For other analyses from same drill 

hole, see sample 27, group Hb and sample 48, group Fe.]

62. Sample 26828. Depth 17-19 ft.

63. Sample 26826. Depth 9-11 ft.

Washington

Kittitas County. [Late Cretaceous, underlies Swauk Formation.] Tps. 22, 

23 N., R. 14 E., about 26 miles north of town of Cle Elum. Analyst, under 

direction of O.C. Ralston. Drill hole 37. ( Zoldok, 1948, p. 1,2,4-6,figs. 

1-3.) [Iron-bearing rock], depth 267.0-275.5 ft. Index and geologic maps, 

geologic sections. Possible use: Nickel-iron alloy, low chromium steel.

Table 17. Analyses of samples from Alaska, Oregon, and Washington, of iron-rich rocks, most of which contain 50 percent or more of ferrous oxide or

ferric oxide (Group Fe), special-rock category

[ Minor discrepancies occur in naming of constituents and in their amounts when more than one version of the analysis is found in the literature. Chemical 

analyses arranged by State, quadrangle or county, and stratigraphic position]

Alaska

SiO, _________ .

Fe,0, .

MgQ. .

TiO, ______ ___.

1

50Fe95-2

. ________ 4.12

. ________ '76.01

2

50Fe95-l

}

5.53 

1.34 

78.30 

.10 

1.97

None

3

36Fe3-32

8.14 

6.05 

73.34

.31

r 12.40 

\ .38

4

36Fe5-12

4.60 

4.90 

'75.06 

.13 

.06

1.30

5

36Fe5-ll

3.18 

2.12 

'78.65 

.22 

.05

.19

6

36Fe5-10

1.18 

.81

.10 

.06

.08

Oregon

7

36Fe5-13

7.28 

5.86 

'71.76 

.11 

.04

8

36Fe5-14

15.62 

10.68 

'58.52 

.13 .

.07 .

9

36Fe5-7

10

4.07 5.05 

3.65 4.53 

'55.7 '69.2

19.5

11

4. 

6. 

'56.

20.

12

36Fe5-15

61 5 

25 7 

9 '71

0 _ __

32 ___

77 

81 

2
ANALYSES OF SAMPLES 221

Table 17. Analyses of samples from Alaska, Oregon, and Washington, of iron-rich rocks, most of which contain 50 percent or more of ferrous oxide or

ferric oxide( Group Fe), special-rock category Continued 

Chemical analyses Continued

P,05 ____________________

MnO ______ ____________

s_

V ______________________

Cu _________ __________

BaO _____________________

Ignition loss ___ ___ _ _

Total _ _____ _ _ ___

Alaska

1

50Fe95-2

1 0.002 

'.35 

<.004 

<.005

[80.7]

2

50Fe95-l

.13 

1.37 

Trace

Trace 

*1.10

100.24

3 4

36Fe3-32 36Fe5-12

.44

.01

101.07

*2.26 

'.35 

.04

12.37

[101.07]

5

36Fe5-ll

*2.24 

'.45 

.03

11.60

[98.73]

6

36Fe5-10

'.55

.02

10.37

[98.75]

Oregon

7

36Fe5-13

h.53 

'.31 

.03

13.25

[100.17]

8

36Fe5-14

1 .28 

.03

13.78

[100.07]

9 10

36Fe5-7

11.42 h.76 

1 .65 1 .80 

.02 .03

10.5 13.04

8[95.5] *[94.4]

11 12

36Fe5-15

l'.m

.03

8.80

3 [99.2]

4.04 

'.84 

.03

11.09

4 [98.8]

Oregon Continued

13 14

36Fe5-19

SiO, _________ _ 5.46

A1,O, __________ 1.80

FejO, __________ 1 56.28

MgO ___________ ______

CaO ___________ __ __

HjO- __________ 20.8

TiO, ___ ___

PjOs 1 .82

Mna ___________ *.34

S _____________ .07

ZnO __________ ______

Ignition loss ______ 10.28

Total _ ____ 8 [95.8]

'Calculated from reported 

Fe. P, or Mn. 

'CO,.

6.89 

2.27

'i.os

'.43

.08

12.98

*[94.8]

15

36Fe5-18

5.40 

5 6.86 

1 75.22

7(10.24)

'.94 

'.34 

.06

11.0

[99.8]

16 17

36Fe5-23

4.58 

3.18 

1 57.02

19.5 .

.32 

*1.28

.10

10.04

8 [96.0]

5.69 

3.95 

^O.S

.40 

h.58

.13

12.47

*[95.0]

18

36Fe5-28

1.77 

22.35 

1 62.42

2.98

'11.85

[101.37]

3 Analysis on natural basis. 

* Analysis on dry basis. 

'Aluminum.

19

36Fe5-34

4.28 

21.60

3.68

'17.92

[98.99]

20

36Fe5-35

8.38 

20.00 

*49.59

3.20

'15.62

[96.79]

21

36Fe5-79

8.4 

20.0

*49.6

3.2

15.6

[96.8]

'Fe(dry). 

' Not included in total .

'HjO (-no^c).

22 23

36Fe5-9 36Fe5-21

3.58 10.35 

7.47 9.41 

*51.00 *46.20

Trace .56

*1.94 '.87 

h.eo '.32 

.025 .026

14.34 12.18

[79.96] [79.92]

24

36Fe5-73

5.29 

3.11 

'76.13

'(19.50) 

None 

'.95 

1 .54 

.041

12.96

[99.02]

25

36Fe5-76

4.00 

4.00 

'49.05 

.35 

.90 

"21.50

'1.37 

'.58 

.25 

.42 

11.50

[93.92]

*At 1,000°-1.100°C! 

sample air dried.

DESCRIPTIVE NOTES

[Underscored page numbers in reference

Alaska

4-8

9-14

1. Nome quadrangle. [Sec. 28, T. 8S., R. 35 W., unsurveyed], 19 miles 

northwest of Nome. Monarch prospect. Sample Sinuk 22. ( Herreid, 

1966, p. 1, 5. 6, figs. 1, 2.) Limonite rubble, dense. Index and geologic maps. Possible use: None.

2. Nome quadrangle. [16.7, 13.75] , about 25 miles northwest of Nome.

Monarch group of claims. Analyst, R. C. Wells. ( Eakin, 1915, p. 361- 

363, 364; Herreid, 1966, p. 1, 5, figs. 1, 2.) Limonite rubble, dense. 

Composite sample from open cuts. Mineralogy. Tonnage estimated. 

Index and geologic maps. Possible use: None. 

Oregon

3. Clackamas County. SW»NEi sec. 9, T. 3 S., R. 1 E., about 2.5 miles 

southwest of town of Williamette. USED sample 222A. ( Hodge, 1938a, 

p. 70-72.) Limonite, 2 ft thick. Measured section. 

Columbia County. Miocene. Tps. 3-5 N., Rs. 2, 3 W., near town of 

Scappoose. ( Hotz, 1953, p. 75, 77, 82, 84, j!5. 91, 92.) Average 

thickness of beds, 5ft, overburden 5-160 ft. Tonnage estimated. Index 

maps. Possible use: Pig iron for steel.

4. Sample 1. [Iron-bearing rock] , dark-brown to yellow-brown, granular; composed chiefly of granules of hard black limonice in yellow 

clay. Composite of nine samples.

5. Sample 2. [Iron-bearing rock] , claylike or sandy material; contains 

layers of hard black hmonite .

6. Sample 3. Limonite, black, hard, brittle.

7. Sample 4. [Iron-bearing rock] , dark-brown to yellow-brown, granular; 

composed chiefly of granules of hard black limonite in yellow clay. 

Composite of five samples.

8. SampleS. [ Iron- bearing rock] , claylike or sandy material; contains

layers of hard black limonite. Composite of five samples. 

Columbia County. Miocene [implied] . ( Oregon Department Geology and 

Mineral Industries, 1951, p. 6. 31, 32, 33, fig. 1; Hotz, 1953, p. 75, 80, 

82, 84, JJ6-92, pis. 8-11.) Weighted average analyses. Tonnage 

estimated. Index and geologic maps, geologic sections. 

9, 10. Sees. 3, 10, T. 3 N.. R. 2 W., sec. 34, T. 4 N., R. 2 W., 

about 2 miles northwest of Scappoose. Colport Charcoal Iron 

deposits. Limonite, predominantly yellow, soft; contains bands 

of hard dark-brown to nearly black limonite; 2-14 ft thick, 

average thickness more than 5 ft, average thickness of overburden 60-90 ft. Correlated columnar sections. Use: Sulfur 

absorbent in purifying manufactured gas; pigment. 

11, 12. SWi sec. 27, T. 4 N., R. 2 W., 3.5 miles northwest of

Scappoose. Limonite, about 3 ft thick, average overburden

indicate source of analysis]

Oregon Continued

30 ft. Possible use: Pig iron for steel.

13, 14. Sec. 35, T. 4 N., R. 3 W., 7 miles west of Scappoose. Ironcrest 

deposit. Limonite, 2-20 ft thick. Former use: Paint pigment. 

Possible use: Source of iron. 

15. Columbia County. Miocene. Si sec. 35, T. 4N., R. 3 W., near

Scappoose. Ironcrest mine. (Hodge, 1935b, p. 12, 14, 15, 19.) [Ironbearing rock.] Trench sample. Tonnage estimated. Possible use: 

Probably none, deposit small. 

16, 17. Information as in samples 9-14. SWi sec. 24, NWi sec. 25, T. 5 N.,

R. 3 W., about 14 miles west of town of St. Helens. Ladysmith deposit. 

Limonite, 2-17 ft thick, averages about 10 ft thick; overburden averages 

about 15 ft. Possible use: Pig iron for steel. 

18-20. Columbia County. Miocene and Pliocene. Analyst, L. L. Hoagland.

( Libbey, Lowry, and Mason, 1945, p. 1. 2, 4, 5, 26, 48, 49-_51, J56. 

86-88.) Index maps. Possible use: Source of alumina, iron, titanium 

oxide, ferrotitaninm.

18. [T. 3 N., R. 1 W.], 2 miles northwest of Scappoose. [Limonitic 

clay] ferruginous bauxite, pisolitic.

19. Si NW» sec. 1, T. 4 N., R. 2 W., about 2.5 miles west of St. Helens. 

Gaman property. Sample P-3266. Ferruginous bauxite, compact.

20. SWi sec. 1, T. 4 N., R. 2 W., south of town of Yankton. Railroad

cut. Sample P-3272. [Limonite.] Concretion, porous; overburden 

about 6 ft. Mineralogy. Geologic section.

21. Columbia County. Miocene and Pliocene. Sec. 1, T. 4 N., R. 2 W., about 

3 miles west of St. Helens. Yankton cut. ( Bell, 1945, p. 1, 4, 5, 9, 

fig. 1, pi. 2.) Limonite concretion. Index and geologic maps, geologic 

sections. Possible use: None.

22. Columbia County. North part sec. 3, T. 3 N., R. 2 W. and SWi sec. 34, 

T. 4 N., R. 2 W., about 2 miles northwest of Scappoose. Colport 

Development Co. ( Williams and Parks, 1923, p. 8, 18, 20, _21.) Bog 

iron ore, average thickness 4.95 ft, composite sample. Tonnage estimated. 

Index and geologic maps.

23, 24. Columbia County, si sec. 35, T. 4 N., R. 3 W., 8 miles west of Scappoose. 

Ironcrest mine or field. ( Miller, 1938, p. 29, 30, 31.) Limonite, 

occurs as bog and residual deposits, 2.5-16 ft thick. Tonnage estimated.

23. Analyst, Dwight Woodbridge. Composite of seven samples.

24. Composite of 13 samples.

25. Columbia County. Tps. 3-5 N., Rs. 2, 3 W., south of Scappoose. ( Zapffe, 

1949, p. 56, J57-60, 64.) Laterite, yellowish to rusty; average thickness 

about 5 ft, overburden 5-100 ft. Mineralogy. Tonnage estimated. 

Possible use: Cast iron, foundry iron, steel.

487-187 O - 73 - 15
222 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 17. Analyses of samples from Alaska, Oregon, and Washington, of iron-rich rocks, most of which contain 50 percent or more of ferrous oxide or

ferric oxide (Group Fe}, special-rock category Continued

Chemical analyses Continued

Oregon Continued

SiO.

A1.0, 

Fe«O>

MgO ____ _____

CaO __ _ _____

H,0+ _____ ___

TiO, __________

P_05 _________

MnO ________ .

S _____________

Cr.0, __________

ZnO _ ,_ ______

Ignition loss ______

Total ______

SiO, __________

A1.0, 

Fe_0, ______

MgO _.

CaO ___________

H,0- __________

TiO, __________

p.n.

MnO ___ ____ .

S _______ ____

Cr,0, _________

Ignition loss _ _ _

Total ____ .

26

36Fe5-5

3.61

3.69

2 58.37

.156

.264

__ *20.00

.30

2 1.365

2 .557

.100

.415

12.40

_ [101.23]

39

36Fe5-54

18.20

18.48

2 48.50

.13

.11

2 1.08

2 .57

.026

13.69

[100.79]

27

36Fe5-74

2.80 

3.30 

2 61.70 

.01 

.10

*19.50

2 1.35 

2 .52

.02

.41 

13.50

[103.21]

40

36Fe5-55

18.78 

13.71 

2 50. 36 

.11 

.09

2 1.06 

2 1.03 

.020

15.73

[1Q0.89]

28

36Fe5-77

4.03 

3.47 

2 47.12 

.306 

1.10

| 21.50

2 1.475

.053

.41

7 10.33

[89.79]

41

36Fe5-48

7.95 

4.22 

2 74. 74 

.09 

.13

4 (20.70)

2 .93 

2 .45 

.020

12.08

[100.61]

29

36Fe5-75

3.05 

3.97 

2 53.61 

.05 

.68

15.20

2 1.756

.025

.42 

7 12. 57

[91.33]

42

36Fe5-49

7.98 

4.77 

2 73. 96

.08 

.14

4 (26.00)

2 .89 

2 .48 

.024

12.38

[100.70]

30 31

36Fe5-3 36Fe5-80

6.20 1.25 

5.60 5.27 

283.08 74.46

.66 ______

1.00

_ ____ 15.54

2 1.83 5 .34 

2 .23 _____

_____ 4 3.22

'[98.60] 100.08

Oregon Continued

43 44

36Fe5-22 36Fe24-77

3.20 3.44 

*4.72 4.90 

2 78. 36 2 73.39

.39

2 1.24 ______

2 .64 ______

.25 ______

12.2 " 16.43

[100.6] [98.55]

32

36Fe5-16

2.50 

1 8.72 

2 76. 36

(

[ 4 (8.78)

2 .98 

2 .31 

Trace

12.0

[100.9]

45

36Fe24-28

2.78 

29.15 

2 50.11

1.39

"17.17

[100.60]

33

36Fe5-17

3.50 

1 4.36 

2 77. 22

4 (22.86)

2 1.05 

2 .28 

.07

14.1

[100.6]

46

36Fe24-41

10.18 

14.35 

2 60.73

1.39

"13.96

[100.61]

34

36Fe5-46

2.78 

1.21 

! 81.28 

.10 

.08

2 1.03 

'.67 

.009

13.30

[100.46]

47

36Fe34-10

4.56 

10.48 

2 72.30

1.76

"12.14

[101.24]

35

36Fe5-50

3.92 

3.47 

2 77. 13

.10 

.09

2 1.22 

2 .74 

.018

13.96

[100.65]

48

36Fe36-7

3.64 

16.25 

58.63

2.20

19.32

36 37

36Fe5-51 36Fe5-52

4.27 4.95 

5.52 3.10 

2 76. 56 276.86 

.08 .10 

.10 .12

2 1.22 2 1.55 

2 .61 2 .70 

.023 .017

12.49 13.67

[100.87] [101.07]

38

36Fe5-53

12.07 

15.64 

2 55. 98 

.12 

.15

2 1.15 

2 .66

.028

15.06

[100.86]

Washington

49 50

46Fe4-23 46Fe6-l

15.89 14.3 

8.04 ______

2 58. 33 2 43.47 

5.60 ______

1.50 ______

*5.03

*2.48 ___ _

.17 .4 

2 .046 1.81 

2 .54 "5.5

.02 ______

3.17 ______

1.31 ______

4 (5.37) 10.7

[100.04] "[102.56] [76.2]

51

46Fe6-2

23.6

260.9

.2 

2.52 

"9.2

4 (10.9)

[96.4]

Washington Continued

SiO, __________

Al,0, _________

Fe,0, _________

MgO __________

CaO ___________

TiO, __________

H.P04 _________

MnO __________

CO, __________

S

NiO

CoO ________ .

Cr ____ ______

Total ____ .

52

46Fel4-3

0.80

2 71. 53

22.23

10

. _ .062

.__ [94.80]

53

46Fel4-6

1.38

3.00

1.13

.06

24.12 

.01

2 .10

.077

[95.42]

54

46Fel4-2

M13.04 

1.06 

2 74. 80

Trace

".14

[89.04]

55

46Fel6-10

1.00 

2 59. 17

2.00

.751

2.00

[64.92]

56 57

46Fel6-l 46Fel9-58

*9.67 7.65 

None 9.16 

2 76. 75 2 70.86

3.87

2 .52 Trace

2 2. 50 Trace

".20 1.00 

2 .43 _ ___

2.04

[90.07] [95.78]

58

46Fel9-57

7.55 

3.66 

2 79.15

2.16 

1.17

2 .18

2.20

.07 

.92 

1.99

[99.05]

59

46Fel9-52

6.10 

5.40 

2 74. 73

2.75 

1.25

None

2 .03

1.15

.04 

1.10 

3.18

[95.73]

60

46Fel9-50

5.90 

11.90 

2 72. 59

1.00 

1.15

2 .30

.69

.04 

.70 

2.65

[96.92]

61

46Fel9-49

5.85 

8.30 

2 73.87

3.26 

None

2 .04

.65

.05 

.90 

2.06

[94.98]

62 63

46Fel9-47 46Fel9-45

5.41 3.10 

5.31 4.08 

57.44 82.56 

15.58 1.24 

.80 1.01 

Trace .28 

2.49 ______

U3.13 1.53

2 .06 ______

1.61 ______

1.65 *.30 

*1.90 ______

Trace _____

f 2.98 .68 

I Trace

17 2.12 B5.20

"100.48 99.98

64

46Fel9-43

10.28 

.60 

2 78.76

1.48 

.53

None 

*.032

.173 

*None 

None

5.30

[97.16]

'Reported as aluminum. 

2 Calculated from reported Fe, CaCO,. 

P orMn.

*H2O(-110eC).

4 Not included in total.

5 Phosphoric acid.

 Sulfuric acid. 

7 At 500°C.

'Analysis on dry basis; moisture content, as mined, 

about 30 percent divided about equally between 

combined and free water.

*H2O + reported as H2O( +105eC); H_O- reported as 

H_O(-105eC).

»Mn_0,.

"At l.OOOo-a.lOQoc, sample air dried.

8 CoO = 0.11 percent. Pb = 0.05 percent, 

Cu = 0.08 percent, As = 0.02 percent. 

B Insoluble. 

"Combined water. 

* Manganous oxide. 

"Carbonic acid. 

"Cr,0,. 

"Reported as 98.87 percent.
ANALYSES OF SAMPLES 223

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Oregon Continued Oregon Continued

26-29. Columbia County. ( Zapffe, 1949, p. 56, 57-JJ9. 60, 64, pis. 3, 5.)

Laterite, yellowish to rusty, finely granular; average thickness about 5 ft, 

overburden 5-100 ft. Mineralogy. Tonnage estimated. Possible use: 

Cast iron, foundry iron, steel.

26, 27. Tps. 3-5 N., Rs. 2, 3 W., south of town of Scappoose.

28, 29. Sec. 3, T. 3 N., R. 2 W. Oregon Iron Ore Development Co.

30. Columbia County. [T. 3N., R. 2W.], near Scappoose. ( Walsted, 1955, 

p. 4, 6.) Limonite, earthy texture. Tonnage estimated. Possible use: 

Foundry pig iron.

31. Columbia County. [T. 4 N., R. 2W.], about 25 miles northwest of

Portland, North Fork of Scappoose River. Raffety and Payne mine. ( Diller, 

1896, p. 511.) Limonite. Use: Source of iron [implied] .

32, 33. Columbia County. Si sec. 35, T. 4N., R. 3W., near Scappoose.

Ironcrest mine. (Hodge, 1935b, p. 12-15, jj), 27.) [Iron-bearing rock.] 

Thickness few inches to 12 ft; overburden 2-15 ft. Tonnage estimated. 

Use: Probably none.

34. Columbia County. [T. 4 N.. R. 3 W.] Finley location. ( Hodge, 1935b, 

p. 2JJ.) [Iron-bearing rock.]

35-40. Columbia County. [T.4N..R. 3W.] Pearson location. ( Hodge, 1935b, 

p. 18.) [Iron-bearing rock.]

38, 39. Trench sample.

41, 42. Columbia County. [T. 4 N., R. 3 W.], Pisgah Heights. Heppner location. 

( Hodge, 1935b, p. 18.) [Iron-bearing rock.]

43. Columbia County. Sec. 24, T. 5N., R. 3 W. Scappoose deposits,

Ladysmith mine. (Hodge, 1935b, p. 19, 24, 25, 27.) f Iron-bearing 

rock], generally soft; 8-20 ft thick, overburden a few feet to 46 ft. 

Tonnage estimated. Use: Probably none.

44. Marion County. Miocene and Pliocene. Sec. 24, T. 8S., R. 2 W.

Analyst, L. L. Hoagland. ( Libbey, Lowry, and Mason, 1945, p. 2, 4, 5, 

72, J31, 85-88.) Limonite. Index map. Possible use: Source of iron, 

titanium oxide, ferrotitanium.

45,46. Marion County. Miocene and Pliocene. T. 8S..R. 3 W. Analyst,

L. L. Hoagland. ( Libbey, Lowry, and Mason, 1945, p. 2, 4, 5, 71, 72, 

74. j!0, 85-88.) Index maps. Possible use: Abrasives, cement, aluminum 

chemicals, oil refining, refractories; source of alumina, iron, titanium 

oxide, ferrotitanium.

45. SW4 sec. 15, about 4 miles south of town of Salem. Summers

property. Sample P-3987. Ferruginous bauxite, pisohtic; float 

sample. Mineralogy.

46. SW| sec. 19, about 5 miles southwest of Salem. Sample P-3552. 

Limonitic float.

47. Washington County. Miocene and Pliocene. NWi sec. 27, T. 2N., 

R. 2 W. Anderson property. Analyst, L. L. Hoagland; collectors, 

J. F. Cleaver, L. C. Swanson. Sample P-3363. ( Libbey, Lowry, and 

Mason, 1945. p. 1. 2, 4, 5, 25, 45. 86-88.) [Limonitic material] 

ferruginous bauxite, float sample. Mineralogy. Index maps. Possible 

use: Source of alumina, iron, titanium oxide, ferrotitanium.

48. Yamhill County. SEi NWi sec. 3, T. 3S., R. 2W., near town of Newberg. 

Sample 26827. ( Oregon Department Geology and Mineral Industries, 1961, 

p. 122.) Ferruginous bauxite, depth 13-15 ft; overburden 6 ft. [For 

other analyses from same drill hole, see sample 27, group Hb, and 

samples 62, 63. group Hbi.]

Washington

49. Chelan County. [Late Cretaceous, underlies Swauk Formation.] w£ sec. 13, 

Ei sec. 14, T. 22 N., R. 17 E. Blewett Pass deposits, Apollo claim; 

Washington Nickel Mining and Alloys. Inc. ( Zapffe, 1949. p. 77-79. SO, 

81, pi. 4.) Laterite, brownish-red, fine-grained, metallic luster, 

magnetic, massive, slightly oolitic; contains serpentine pebbles. Tonnage 

estimated. Possible use: Nickeliferous alloy.

50, 51. Clark County. EiSEi sec. 5, T. 2N., R. 2E., 0.5 mile south and 0.25 

mile east of Barberton. Howland acres. ( Hunt ting, 1956, p. 31, 195.) 

Limonite, maximum thickness 20 ft, overburden 6-18 in. Sample 2 ft 

thick. Mineralogy. Index map.

52, 53. Grays Harbor County. SEi sec. 28, T. 18 N.. R. 5 W., 3.5 miles east of 

town of Elm a. Dennis property. (lenkins and Cooper, 1922, p. 107-109, 

pi. 1.) Deposit 1-4 ft thick, overburden 3-8 ft. Mineralogy. Tonnage 

estimated. Index maps.

52. Analyst, R. P. Cope. ( Huntting, 1956, p. 196.) Black sand, 

stratified. Possible use: Source of iron and titanium.

53. General: Magnetite, hard, granular; intermixed with sand and gravel. 

Sample: Consolidated black sand.

54. Grays Harbor County. [T. 18 N., R. 5 W.], northeast of Elm a, Black Hills. 

Analyst, Elton Fulmer. ( Shedd, 1902, p. 225. 235; Jenkins and Cooper, 

1922. p. 109.) Nodules of black sand.

55. Jefferson County. [Tps. 29, 30 N., R. 1W.], near Port Townsend,

Chimacum Valley. ( Hodge, 1935a. pi. 6; Hodge, 1935b, p. 6.) Limonite, 

bog ore, brown, earthy; 10-20 in. thick. Tounage estimated. Use: 

Probably none.

56. Jefferson County. [Tps. 29, 30 N., R. 1W.], Chimacum Valley, Irondale 

district. Analyst, Elton Fulmer. Sample 31. (Shedd, 1902, p. 10.) 

Limonite, bog ore.

57-64. Kittitas County. [Late Cretaceous], underlies Swauk Formation. Sees. 26, 

34, 35, T. 23 N.. R. 14 E., sees. 1. 2, T. 22 N., R. 14 E.. 16 miles 

from Lakeside railroad station. Balfour Guthrie group of claims. ( Shedd, 

1902, p. 27, 28, 30, j33; Jenkins and Cooper, 1922, p. 73, 75, 78, 81, 82, 

pi. 1.) [Iron-bearing rock.] Tonnage estimated. Index map.

57-61. Analyst, Edward Riley. Samples from exposure.

62. Average analysis of iron ore from Cle Bum.

63. Analyst, Cabell Whitehead; collector, J. P. Kimball. ( Kimball,

1898. p. 157. 158,^61.) [Sample not reported in Shedd, 1902.] 

Ferruginous beds 6-18 ft thick. Mineralogy.

64. Analysts, C. F. Chandler, C. E. Pellen. ( Courtis, 1900, 

p. 1116.) Surface sample.
224 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 17. Analyses of samples from Alaska. Oregon, and Washington, of iron-rich rocks, most of which contain 50 percent or more of ferrous oxide or

ferric oxide ( Group Fe), special-rock category Continued

SiOj _ __ .

A1,Q, _

Fe203 _ 

MgO ___ _

CaO __ _

TiO, __ __

P*05

MnO _

S" _____

Cr20,_ __ .

ChO(sic),Mn

Total _ .

SiO2 __ ___

A120, _ 

FejO, _ _ __

FeO _____ .

MgO _______

CaO ______

H,0 __ __

TiOj _____ .

P205 _

MnO_ _____

S ___ _

CrjO, .

NiO __ __ .

Co ______

Ignition loss _ .

Total _ ,

SiOj __ __

A120, 

Fe»O«

FeO _ ___ .

MgO_ ____

CaO _

P205 .

MnO _ ____

S __ _ ___

Cr 20, .

Ni ____ _ .

Co ________

Cu __ ___

As _______

6a

Pt _____ .

Ignition loss _

Total _

65

46Fe 19-22

___ 1.85

2 98 .44

__ .09

.05

2 .09

_ _ None

___ [100.52]

78

46Fel9-32

,_ __ 7.63

__ 12.88

_ _ 2 70.94

2.22

__ . .23

.64

. ___ .35

2 .06

___ 2 .67

.055

3.13

._ __ .97

___ 2.00

___ . [101.78]

91

46Fe 19-23

. ___ 5.0

___ 28.5

2 54.34

.____ 2 .07

.020

. __ 1.61

__ _ .44

[90.0]

66

46Fel9-63

12.87 

1.27 

2 87.07 

.12 

.09 

None 

2 .05 

Trace 

None 

.63

[102.10]

79

46Fel9-71

8.31 

13.39 

2 68.67

2.90 

.33 

.59 

.31 

2 .08 

2 .77 

.062 

3.33 

1.07

2.55

[102.36]

92

46Fe 19-40

11.5 

22.9 

2 51.77

'.13

1.58 

2.30 

.69

[90.9]

67

46Fel9-55

7.50 

1 Z5.95 

2 66.05

Trace

Trace

[99.50]

80

46Fe 19-30

7.5 

11.9 

3 70.7

2.0

J 7 3.9

2.0

98.0

93

46Fel9-35

9.3 

29.9 

2 47.90

2 .38

.019 

2.02 

.39

[89.9]

68

46Fel9-64

12.95 

.89 

2 83. 08 

1.75

1.13

None 

2 .11

None 

2.39

[102.30]

81

46Fel9-3

7.6 

18.9 

3 61. 9

2.2

7 3.6

3.4

97.6

94

46Fel9-24

5.4 

15.9 

2 66. 90

2 .08

.076 

2.46 

.89

C91.7]

Chemical analyses Continued

Washington Continued

69 70 71

46Fel9-61 46Fel9-65 46Fel9-62

11.07 l-i.99 12.71 

2.39 1.53 1.01 

2 82.24 *86.59 2 85.80 

_ ___ .21 .19

_____ .11 .93

2 .14 2 .07 2 .05

_ ___ .72 1.26

[95.84] [102.22] [101.95]

Washington Continued

82 83 84

46Fel9-31 46Fel9-34 46Fel9-27

7.6 8.4 6.9 

11.8 14.1 23.1 

3 68.6 *66.5 3 56.6

3.3 2.2 1.9

7 4.6 7 4.2 7 3.6

1.9 2.4 5.0

[97.8] 97.8 97.1

Washington Continued

95 96 97

46Fel9-41 46Fel9-42 46Fel9-33

12.9 15.4 8.4 

22.2 15.4 9.6 

2 50.08 2 52.17 2 47.3 

_____ _____ 2 21.6

9 Q

_ _ _____ .6

2 .23 2 .20 2 .032

.159 .035 .05 

2.25 2.29 'l.7 

.66 .75 .92

___ _ _____ *2.2

[88.5] [86.2] [95.3]

72

46Fel9-48

5.68 

1 4.80 

3 86. 40

None

Trace

[96.88]

85

46Fel9-72

7.68 

16.25 

2 64.45

2.43 

.31 

'.53

.53 

2 .073 

2 .76 

.045 

f *2.02 

\ '.74 

.084

2.83

[98.73]

98

46Fel9-25

5.6

7.0 

2 62.9 

2 11.4 

4.1 

.3 

2 .05 

2 1.4 

.01 

*2.23 

1.43 

.02 

.02 

.03

Nil 

Nil 

*3.0

[99.5]

73

46Fel9-59

9.55 

1.21 

2 84. 70 

1.90

1.69

None

2 .07 

Trace 

Trace 

1.53

[100.65]

86

46Fel9-66

14.25 

20.23 

4 42.22

2.46 

.33

.53 

2 .092 

2 .46 

.063 

'1.77 

'.77

[83.18]

99

46Fel9-26

5.8 

9.9 

2 49.9 

2 18. 4 

3.9 

2.2 

2 .07 

2 .41 

.02 

«2.1 

1.25 

.11 

.03

»3.5

[97.6]

74

46Fel9-38

10.09 

21.52 

2 60. 98

Nil

2 .26 

.08 

2.90

2.84

[98.67]

87

46Fel9-54

7.5 

21.9 

37.1

2.3

6.8

.7 

.09 

Trace 

.03 

2.2 

.2

'.15

100.3

100

46Fel9-39

10.8 

13.9 

2 65.6

4.69 

.2 

2 .04 

2 .32 

.007 

'2.27 

1.19 

.01

[99.0]

75

46Fel9-56

7.53 

13.36 

2 72.11

2.06

[95.06]

88

46Fel9-28

6.5 

16.3 

2 61. 95

Z .08

.038 

2.48 

'.78

[88.1]

101

46Fe 19-53

7.410 

7.51 

*73.09

2.720 

.740 

.080 

1.050 

.041 

3.352

j .93

[96.92]

76

46Fel9-51

6.07 

.84 

2 87.15

*.02

1.33

[95.41]

89

46Fe 19-29

7.2 

9.7 

»69.63

Z .03

.106 

2.59 

'.87

[90.1]

102

46Fel9-68

18.38

*74.96

.27 

3.15 

*2.91 

*1.70 

.01

[101.38]

77

46Fel9-46

4.31 

19.82 

2 69.83

1.71

[95.67]

90

46Fel9-37

9.9 

19.7 

2 52. 47

'.06

.048 

2.08 

'.55

[84.8]

103

46Fel9-60

9.90 

7.90 

2 74. 66

*.06 

2 1.48 

None

- *1.70

f 1.07

^

[96.77]

Alumina and chromium oxide.

Calculated from reported Fe, 

Fe +++ . Fe ++ . P or Mn.

'iron oxide or iron oxides. 

4 Fe dry. 

S H20(-110«C).

"Cr.

Nickel and chromic oxides. 

'Ni. 

'CO,. 

*At 1.000" C.
ANALYSES OF SAMPLES 225

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

65-73. Kittitas County. [Late Cretaceous], underlies Swauk Formation. Sees. 26, 

34, 35, T. 23 N., R. 14 E.. sees. 1, 2, T. 22 N., R. 14 E., 16 miles 

from Lakeside railroad station. Balfour Guthrie group of claims. (Jenkins 

and Cooper, 1922, p. 73-75, 78, 81, 82-84, pi. 1.) [Iron-bearing rock.] 

Tonnage estimated. Index maps.

65. Iron Boss claim. Analyst, J. A. Dodge. Sample Dj.

66. Iron Duke claim. Analyst, J. A. Dodge. Sample DT .

67. Iron Monarch mine. Analyst, Solon Shedd. Sample 24. (Shedd,

1902, p. 10, ^7, 28, 30-32; Ingalls, 1909, p. 117, 118.) Sample: 

Greenish-black, pebbly w oolitic with amorphic or finely crystalline groundmass. Possible use: Probably none, deposit small.

68. Iron Monarch claim. Analyst, J. A. Dodge. Sample Dg.

69. Summit of Magnetic Mountain. Analyst, J. A. Dodge. Sample Ij. 

(Kimball, 1898, p. 157, 158. 160, 161.) Ferruginous beds, 

6-18 ft thick. Mineralogy. Possible use: None.

70. Magnetic Point claim. Analyst, J. A. Dodge. Sample Dj.

71. Roslyn claim. Analyst, J. A. Dodge. Sample Dg.

72. Roslyn mine. Analyst, Solon Shedd. (Shedd, 1902, p. 10, 27, 30, 

32; Whittier. 1917, p. 21-23, 25, 95.) Possible use: Pig iron.

73. Yankee claim. Analyst, J. A. Dodge. Sample 04.

74, 75. Kittitas County. Underlies Swauk Formation. T. 23 N., R. 14 E., Cle Hum 

district. Balfour Guthrie and Co., Ltd. ( Zapffe, 1944, p. 5-7, 10, 11, 

21, 22, 27, pis. I, 2.) [Iron-bearing rock.] Mineralogy. Tonnage 

estimated. Index and geologic map, geologic sections. Possible use: 

Sponge iron, pig iron, steel; source of aluminum, nickel.

74. SW4 sec. 26. Iron Boss Fraction claim. Laterite, black; 5.6 ft thick.

75. NW| sec. 35. Iron Monarch claim. Collectors: J. T. Mullen and 

C. L. Holmberg. Sample C-ll. Laterite, 4.0 ft thick.

76. Kittitas County. Underlies Swauk Formation. [Sees. 26, 34, 35, T. 23N., 

R. 14 E., sees. 1, 2, T. 22 N., R. 14 E.], Cle Hum district. Monarch 

mine. Analyst, J. A. Dodge. (Kimball, 1898, p. 157.158.160.161; 

Courtis, 1900, p. 1116.1117.) Hematite, 6-18 ft thick. Mineralogy. 

Possible use: None.

77-79. Kittitas County. Underlies Swauk Formation. NW* sec. 35, T. 23 N., 

R. 14 E., Cle Hum district. Balfour Guthrie and Co., Ltd. Collectors, 

J. T. Mullen, C. L. Holmberg. ( Zapffe, 1944, p. 5-7,10.11,21.22.27, 

pi. I.) [Iron-bearing rock.] Mineralogy. Tonnage estimated. Index and 

geologic map, geologic sections. Possible use: Sponge iron, pig iron, 

steel; source of aluminum, nickel.

77. Bessemer Iron No. 2 claim. Sample C-6. Laterite, 5.5 ft thick.

78. Bessemer Iron No. 2 claim. Samples C-4, C-5, C-6. Laterite, 

weighted analysis.

79. Iron Monarch and Bessemer Iron No. 2 claim. Samples C-l, C-6, 

C-10, C-ll. Laterite, weighted analysis.

80-84. Kittitas County. Underlies Swauk Formation. SW.S sec. 26, NWj sec. 35, 

T. 23 N., R. 14 E. Balfour Guthrie and Co., Ltd.;Iron Monarch,Bessemer 

Iron No. 2, Iron Boss claims. (Zapffe, 1944. p. 5,7-10.12,JL8.21,22,25, 

27, figs. I, 2, J5, pis. 1, 2.) [Iron-bearing rock.] Mineralogy. Tonnage 

estimated. Computed analysis of weighted average. Index and geologic 

maps, geologic sections. Possible use: Sponge iron, pig iron, steel; 

source of aluminum, nickel.

80. Laterite, nonoolitic, massive, dense.

81. (Bethune. 1891, p. 102.) Laterite, oolitic

Washington Continued

82. Laterite, massive, dense. Average thickness, 6.67 ft.

83. Average thickness. 6.75 ft.

84. Laterite, oolitic. Average thickness, 5.4ft.

85.86. Kittitas County. Underlies Swauk Formation. Sees. 23, 26, 35, T. 23 N., 

R. 14 E., sees. 1-3, T. 22 N., R. 14 E.. 25 miles north of town of 

Cle Hum, Cle Hum mining district. ( Zapffe, 1949, p. 67, 68, 71, 

72-76, pi. 4.) Laterite. Mineralogy. Tonnage estimated.

85. ( Zapffe, 1944, p. 5-12, 21, 25, 27, pis. 1, 2.) Average analysis of 

weighted samples. Index and geologic maps, geologic sections. Possible use: Sponge iron, pig iron, steel; source of aluminum, nickel.

86. Surface sample. Possible use: Stainless steels.

87. Kittitas County. Underlies Swauk Formation. T. 23 N., R. 14 E.. low hills 

along Clealum [Cle Elum] River, between Camp and Boulder Creeks. 

Analyst, W. F. Hillebrand; collector. Bailey Willis. ( Smith and Willis, 

1900. p. 356-358, 361. 364; Smith and Calkins, 1906, p. 13. U; 

Whittier, 1917, p. 21-23, 25, 95.) [Iron-bearing rock], greenish-black, 

oolitic, amorphous. Mineralogy. Index and geologic maps, geologic 

sections, columnar sections. Possible use: Pig iron.

88-96. Kittitas County. Underlies Swauk Formation. Tps. 22, 23 N., R. 14 E.,

about 26 miles north of Cle Hum. Analyst, under direction of O.C. Ralston. 

( Zoldok, 1948, p. l-j>, ]_. figs. 1-3.) [Iron-bearing rock],massive or 

oolitic. Average thickness 14.6 ft. Index and geologic maps, geologic 

sections. Possible use: Nickel-iron alloy, low chromium steel.

88. Iron King claim. Drill hole 6. Depth 54.0-82.5 ft.

89. Iron King claim. Drill hole 7. Depth 119.0-124.0 ft.

90. Iron King claim. Drillholes. Depth 30.0-35.0 ft.

91. Iron Boss claim. Drill hole 23. Depth 142.2-177.0 ft.

92. Iron Monarch claim. Drill hole 26. Depth 53.3-61.0 ft.

93. Iron Monarch claim. Drill hole 29. Depth 190.0-199.0 ft.

94. Bessemer No. 2 claim. Drill hole 31. Depth 27.0-46.5 ft.

95. Iron Prince claim. Drill hole 49. Depth 70.0-83.0 ft.

96. Bessemer No. 1 claim. Drill hole 54. Depth 259.3-264.9 ft.

97-99. Kittitas County. Underlies Swauk Formation. [Tps. 22, 23 N., R. 14 E.].

about 26 miles north of Cle Hum. Analyst, H. E. Peterson. ( Ravitz, 1947, 

p. 3-5, 6, 7, U), 37, 39.) [Iron-bearing rock], 4-50 ft thick, averages 

about 17 ft. Mineralogy. Tonnage estimated. Beneficiation tests. Possible 

use: Source of ferronickel, chromium cast iron.

99. ( Cremer, 1954, p. 2, 4, 5.)

100. County, formation, and location as in samples 97-99. (Cremer, 1954, p. 2, 

4, J5.) Nickeliferous iron-bearing rock. Mineralogy. Tonnage estimated. 

Possible use: Source of ferronickel.

101. Kittitas County. Underlies Swauk Formation. [Tps. 22, 23 N., R. 14 E.], 

Clealum [Cle Elum] district. Analyst, Edward Riley. (Courtis, 1900, 

p. 1116, 1117.) [Iron-bearing rock.] Surface sample, average of 6 samples.

102. Kittitas County. [Tps. 19, 20 N., R. 13 E.], south of town of Easton. 

Big Creek district. Analyst, J. A. Dodge. Sample Nj. ( Jenkins and 

Cooper, 1922, p. 86.) [Iron-bearing rock.]

103. Kittitas County. [T. 22 N., R. 16 E.], about 3 miles south of Mount Stuart, 

Teanaway mining district. Analyst, J. C. Beneker. Sample Lj. (Jenkins 

and Cooper, 1922, p. 84, JJ5.) [Iron-bearing rock.]
226 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 17. Analyses of samples from Alaska. Oregon, and WasWngton,^o£iron-jichjocks, jnost^of which contain 50 percent or more of ferrous oxide or

ferric oxide( Group Fe), special-rock category Continued

Chemical analyses Continued

Washington Continued

SiO2 ______________ .

A1,0S .

Fe,0s __.

MgO __ ____________ .

CaO _____________ .

H,0 __.

TiO, __ __ ______ .

pp, .

MnO ______________ .

S ___ ___

Cr _______________ .

Ni ____________ _.

As ________________ .

ZrO, _____ ______ .

Ignition loss __ _ _ _ __ _.

Total _____ .. ___ .

104

46Fe 

19-67

___________ 12.60

___________ 2 66.11

___________ *.70

. __________ 1.7

.___ _____ 1.11

. ___ [98.8]

105 106

46Fe 46Fe 

25-26 29-75

17.00 22.00

*45.50 Z 57.92 

1.00 ______

5.00 ______

8.00 ______

9.50 '3.00

2.00 U12.51

2.00 ______

4.00 ______

100.00 [95.43]

107

46Fe 

31-61

13.97 

3.68 

2 48.93

.19

6 7.58

2 .016

22.41

B(21.50)

u[98.00]

108

46Fe 

43- 164

5.80

h.ss

4 84.55

.36

.33

[92.89]

109

46Fe 

43-165

4.49 

'2.00 

4 80.08

.72

.32

[87.61]

110 111

46Fe 46Fe 

42-270 43-166

2.23 7.35

*85.79 2 70.84 

_____ 1.00

_____ 4.10

_____ '.51

*.ll ! .062 

_____ ! .50

.023 14.53

[88.15] [100.12]

112

46Fe 

37-104

23.5 

10.1 

! 54.1

.4

6.25

'.133 

Trace 

.004

.001

4.7

[99.2]

113 114

46Fe 46Fe 

37-103 37-102

19.43 10.96

2 56.73 5 29.42

_____ 16.56

2 .350 ".698

.013 Nil

[76.52] [60.78]

Aluminum and chromium oxides. 

'Calculated from reported Fe, P, or Mn. 

S Fe,04 . 

4 Iron oxide. 

*Fedry.

*HjO (-I

* Titanium.

'Fraction of 1.0 percent, not determined.

* Calculated from reported P 

(Zapffe, 1949, pi. 5). 

ll Mnf>4 .

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

"includes ignition loss, HjO(-llO'C) , CO,, 

and C; not included in total.

M Na = 0.28 percent, K =0.70 percent. With 

sample 189 group D and other samples not 

recorded; AsjOs = 0.05 percent; Cr, Ni, Zn, Se, 

Sb, Pb absent or nearly so.

106.

107.

108.

109.

Washington Continued

Kittitas County. T. 22 N., R. 16 E., about 3 miles south of Mount Stuart. 

Devine deposit. Analyst, J.C. Beneker. Sample M». ( Jenkins and Cooper, 

1922, p. 84.85; Huntting, 1956, p. 197.) [Iron-bearing rock.] Possible 110. 

use: Source of iron [ implied].

Pacific County. [T. 9N., R. 10 W.] Columbia River. McGowan deposit. 

( Zapffe, 1949, p. 44-47, pi. 5.) Tltaniferous beach sands, black and dark 111. 

gray. Mineralogy. Possible use: Abrasives, source of iron, titanium.

Skagit County. Sees. 23,24, T. 35 N., R. 6 E.. Snowstorm claim. Analyst, 

E.H. Rothert. Sample U. (Jenkins and Cooper. 1922, p. 96.101.102.pi. 1.) 

[Iron-bearing rock.] Mineralogy. Tonnage estimated. Index map. Possible 112. 

use: Source of iron.

Snohomish County. NEi sec. 36, T. 29 N., R. 8 E., 15 miles northeast of 

town of Sultan. Lockwood Py rite deposit. (Zapffe, 1949, p. 37,39,40.) 

[Iron-bearing rock.] Mineralogy. Tonnage estimated. Possible use: Source 

of sulfuric acid, iron.

Stevens County. Sec. 20, T. 31 N., R. 41 E., about 3 miles east of town of 113. 

Valley, Vigilant mine; owner Mike Kulzer. Analyst, Solon Shedd. 

Sample 41. (Shedd, 1902, p. 10,^6,38; Jenkins and Cooper, 1922, p. 37, 

40,56,j>7 > pl. 1.) [ Iron-bearing rock ] varies from soft reddish to hard, 

compact. Tonnage estimated. Index map, geologic section. Former nse: 

Flux; possible use: Steel. 114.

Stevens County. Sec. 11. T. 39 N., R. 37 E., about 20 miles north and a 

little west of town of Colville, Clugston Creek district. I.X.L. mine.

Washington Continued

Analyst. Solon Shedd. Sample 39. (Shedd, 1902, p. 10.J36.37.) Limonite 

or bog ore, porous, soft to flinty. Possible use: None, deposit small.

Stevens Connty. Sec. 23, T. 39 N., R. 41 E., 12 miles from town of 

Boundary. Thompson property. Analyst, R.P. Cope. ( Glover, 1942, p. 20.) 

Limonite. Tonnage estimated.

Stevens County. [SWi sec. 24, T. 40 N., R. 37 E.], east slope of Sulphide 

Mountain, Big Iron mine. (Zapffe, 1949, p. 18,J.9,20,pl. 2.) Limonite, 

brown. Tonnage estimated. Former use: Calcining of magnesite; possible 

use: Probably none.

Whatcom County. Early Tertiary. Sec. 2, T. 39 N., R. 4E., sec. 35, 

T. 40 N., R. 4 E., 3 miles southeast of Nooksack station. Sumas Mountain 

deposits. (Zapffe, 1949, p. 53,54,55.pi. J3; Moen, 1962, p. 109.111.112, 

pis. 1,4.) Laterite, brown to red, fine-grained, massive, dense; maximum 

thickness 30 ft. Tonnage estimated. Index and geologic maps, geologic 

sections. Possible use: Pigment, production of iron.

Whatcom County. Sees. 8,17, T. 40 N., R. 3 W., about 1 mile north of 

town of Lynden. Sturman or Herringa farm. Analyst, R.P. Cope. Sample C. 

(Jenkins and Cooper, 1922, p. 103-JW5, pi. 1; Zapffe, 1949, p. 42,43, 

pi. j>; Huntting, 1956, p. JJ05.) Bog iron deposit, 2-3 ft thick. Tonnage 

estimated. Index maps. Use: Source of iron.

Whatcom County. Sec. 35, T. 40 N., R. 7 E., sec. 2, T. 39 N., R. 7 E., 4 

miles southeast of Church Mountain. ( Zapffe, 1949, p. j>l,52, pi. 5.) 

[Iron-bearing rock.] Analysis of 5 bulk samples. Tonnage estimated.

Table 18. Analyses of samples from Alaska, Idaho, Oregon, and Washington, of manganese-bearing rocks (Group Mn) , special-rock category

[ These analyses are included here because they do not meet the criteria for inclusion in the common- or mixed-rock categories. Chemical analyses arranged by

State, county and stratigraphic position] 

Chemical analyses

SiOj _ _ _ ___ ____ _______ _.

Insoluble ___ _ _ _____________ .

AljO, __.

Fe _ _________

MgO __ ____

CaO ____ ____________ _

TiO, ___ __ ________ .

pp5 _ .

Mn _____ _________________ _.

S _ __ ______

V,05 _ ____ _ ______ _.

Ni ______ ________________ _ _.

Co _ _______ __

Cu _ ____ ____

123

50Mnl60-3 50Mnl60-6

. ________ _____________ 8.4 _____ _____ .

11 4

________________________ 3.0 _____ _____ .

. _______________________ 9.6 15.07 14.78

. ______________________ 1.9 _____ __ _ .

. ________ _____________ 3.1 _____ _____ .

90

. ____ ____________ ___ .50 _____ _____ .

________________________ 23.2 18.52 19.95

______ _ .55 _ _

. _______________________ .13 _____ _____ .

. _______________________ .63 .30 .31

._ _ __ ______ _______ .06 _ __ _____ .

Alaska

45678

50Mnl60-4 50Mnl60-5

14.54 13.4 13.03 12.86 13.29

19.96 20.9 19.38 22.53 18.69

.31 .37 .58 .42 .53

.37 .40 .23 .19 .35
ANALYSES OF SAMPLES 227

Table 18. Analyses of samples from Alaska, Idaho, Oregon, and Washington, of manganese-bearing rocks (Group Mn) . special-rock category Continued

Chemical analyses

Mo ______________________________

1

50MnlSO-3

_____________________ 0.20

_____________________ 25.4

i

2 3

50Mnl80-8

Maska Continued

4 5 i

50Mnl60-4

S 7

50Mnl80-5

8

Total____________________________________________ [89.5] [34.14] [35.35] [35.18] [35.1] [33.22] [38.00] [32.88]

CiO.

Al,0, ___________

FejO, ___________

MgO_ ___ __ ______

CaO _____________

Na,0_ ___________

H,0- ___________

MnO_

S __ ___________

Ni ______________

Cu __ __ ___

Zn__ _______ ____

WO, ____________

Pb ____________ _

Total _______

9

HMn3-9

10.4 

13.9 

4.2

*6.29

1.7

10

HMn7-l

| ! 5.80

3.04

8.88

*11.80 

*4.10

*.140

*49.92

Nil

[87.4]

4 55.90

101.04

Idaho

11 12

HMn21-2 HMn21-l

f 12.4 3.04 

1 18.5 __ ___

3.8 ______

*2.43 *.20

19.8 ______

*.078 ______

*28.19 *73.88

_____ .026

_____ .04

_____ .05

[81.7] [77.04]

Insoluble portion and separated silica. 

* Calculated from reported Fe, MgCO,, 

CaCO,, P, or Mn. 

*HjO+ above 110°C; HjO- below 110°C. 

4 Sample 10, O = 11.74 percent in excess of MnO; sample 14, 

MnO2 = 49. 64 percent; sample 15, MnOj = 14. 38 percent.

Ore

13 14 15

HMn21-3 HMn30-2 38Mnl-82

2°' 2 } 2.20 { 5 '42 

28.0 J [___ 

10.3 1 f 2.11 

*10.4 J ' j .87 

_____ 1.00 .84

.20 8.10 2.48 

_____ _____ .52

_____ _____ .81

______ '8.24 \

______ >10.88 J 7 ' 35

_____ _____ .09

*.23S _____ ______

*33.5 ( 4) 4 85.40

_____ *13.08 .38

_____ 'l.5S ______

Nil _____ ______

2.2 _____ ______

[105.0] 100.32 100.21

*CoOj = 5.12 percent. GO.

7 CuO. 

*At 1500°C.

gon

18 17 18

38Mnl-53 46Mn5-9 48Mn5-4

49.0 _____ 15.

_____ 8.4 ____

3.8 _____ ____

*2.29 _____ *3.

.10 _____ *.

1.2 5.2 *4.

*.098 _____ ____

*29.87 *58.9 2 58.

Nil _____ ____

*.01 _____ ____

Nil ______

Nil _____ ___

_____ 'IS *3.

[88.2] [84] [83.

80

00 

28

18

01

73 

01

Washington

19

48Mn5-3

3.04

.78

1.20

i is

88.38

20

48Mn5-5

15

*2 

s

*7

2 58

88

12 

29 

32

88

Nil

0005 ______

09

01

55

83] *92.54

Nil 

*7.08

[89 33]

21

4SMn5-10

14.

*4. 

> * 5 ;

*5S.

< .

< .

< . 4

[88

70

38 

15 

94

14

01

05 

07 

0005 

02

01 

83

28]

9COj, calculated from reported 

MgCOj and CaCO,. 

10 Mn = 88.88 percent, MnjO4 = 92.87 percent; 

COj, present; total reported as 99.11 percent.

DESCRIPTIVE NOTES

Alaska

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued

1-8. (Dietz, 1955, p. 209, 210. 211, 218.) General: Sea floor manganese, dull 

dirty brown to earthy black. Mineralogy. Index map. 

1-4. Lat 52°47' N. long 150°05' W. , Gilbert Seamount.

1. Analyst, H. E. Peterson. Sample NH-D-1. Manganese

crust. 

2-4. Analyst, E. Goldberg. Analyses of three separate pieces of

same nodule. 

5-8. Lat 58°10' N. long 145°15' W.. Seamount GA-3.

5. Analyst, H. E. Peterson. Sample NH-D- 7. Manganese

crust.

8-8. Analyst, E. Goldberg. Analyses of three separate pieces of 

same nodule.

Idaho

9. Bannock County. Pleistocene. [T. 12 S., R. 40 E.] , about 1 mile northeast 

of town of Cleveland. Manganese Mining Co. Analyst, under direction of 

H. E. Peterson. ( Vincent and Holmes, 1952, p. 1,3, 6; Hewett and 

Fleischer, 1980, p. 23, 35, 37.) Manganese and clay, porous, ironstained, beds 1-5 ft thick. Mineralogy, thin-section description. Index 

map. Beneficiation tests. Possible use: Source of ferromanganese. 

10. Blaine County. [T. 2 N. , R. 24 E.] , 10 miles west of town of Arco, Lava 

Creek mining district. B. A. Smith property . Analyst, E. V. Shannon. 

(Shannon, 1928, p. 212.) Wad, variety of psilomelane , dark-brown, 

amorphous, rather soft, sectile, compact, tough.

11, 12. Franklin County. Pleistocene. ( Hewett and Fleischer, 1980, p. 23, 35, 37.) 

Manganese and clay, bed 1-4 ft thick. Mineralogy. Index map. Possible 

use: Source of manganese.

11. [T. 12 S. , R. 40 E.] , 1 mile southeast of town of Cleveland.

McGregor property. { Vincent and Holmes, 1952, p. 1, 11-14.) 

Beneficiation tests. Possible use: Source of ferromanganese.

12. [T. 12 S., R. 40 E.] Cleveland district.

Franklin County . [T. 12 S., R. 40 E.] , 1 mile south of Cleveland. Hot 

Spot property. Analyst, H. E. Peterson. ( Vincent and Holmes, 1952,

13.

p. I, 2, jj-10.) [Manganese-bearing rock], porous to fairly compact. Mineralogy. Beneficiation tests. Possible use: Source of ferromanganese.

14. Lemhi County. [T. 21 N., R. 18 E., unsurveyed], Blackbird district. Togo 

claim. Analyst. E. V. Shannon. ( Shannon, 1926, p. 212, 213.) Asbolite, 

variety of psilomelane, friable, earthy.

Oregon

15. Baker County. [T. 10 S., R. 41 E.] , town of Pleasant Valley. Analyst, 

F. A. Gonyer. Sample 7. ( Kerr, 1940, p. 1380, 1382.) Psilomelane. 

X-ray diffraction pattern.

18. Baker County. [T. 11S..R. 42 E.], 8 miles west of town of Durkee. Sheep 

Mountain property. Analyst, under direction of H. E. Peterson. ( Wells and 

Agey, 1947, p. 1, 2, J5-7.) [Manganese-bearing rock.] Mineralogy. 

Screen analysis. Beneficiation tests. Possible use: Source of manganese.

Washington

17, 18. Clallam County. Jurassic. Near line between sees. 23, 24, T. 30 N., 

R. 10W. (Huntting, 1956, p. 254).

17. Thirty miles west of town of Port Angeles. Crescent mine, Sunshine 

Mining Co. Analyst. Church Holmes. (King, 1942, p. 52, 53.) 

[Manganese-bearing rock],primarily hausmannite.

18. Crescent mine. ( Dean and others, 1938, p. _19.) Manganese, hard, 

dense. Mineralogy.

19. Clallam County. [Jurassic.] T. 30 N., R. 10 W. Crescent mine. Analyst, 

E. P. Henderson; collector, M. N. Short. Record C-771. ( Pardee, 1928, 

p. 10, IS-^S, pi. 1; Wells, 1937, p. 91.) Hausmannite. Selected sample. 

Mineralogy. Index map, geologic section.

Clallam County. [Jurassic. T. 30 N., R. 10 W.], Crescent. ( Koster and 

Shelton, 1938, p. j>12.) [Manganese-bearing rock.]

Clallam County. NWlSEj sec. 18, T. 30 N., R. 12 W., about 2 miles 

northeast of town of Sappho( Huntting, 1958, p. 257). State Lease 

claim. ( Dean and others, 1938, p. 19.) Manganese, hard, dense. 

Mineralogy.

20

21
228 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 18. Analyses of samples from Alaska. Idaho. Oregon, and Washington, of manganese-bearing rocks (Group Mn) . special-rock category Continued

Chemical analyses Continued

Washington Continued

S.iOj _________

Al,0, ________

Fe.0, ________

MgO_ _________

CaO

H,0+ _ 

fj rt_.

P,0, ________

MnQ. _________

C0| _________

Cu ___________

Z.n .

As ___________

Pb ___________

Total ____

22 23

46Mn 46Mn 

5-11 5-6

. __ 12.8 26.27

, __ *2.0 *4.72

. __ _____ '.12

. __ *58.8 *55.79

1 9<;

< 01

. __ _____ .05

__ _____ .19

__ [73.6] [<87.57]

24 25 26

46Mn 46Mn 46Mn 

5-8 14-7 16-9

7.75

*1.50 

*.02 

*1.97

1 71.18 

*1.57

.07 

.14

i <.0005 

.01

[<84.23]

13.30 35.5

*27.24 *7.9

*.36 ______

*38.30 *48 

*.45 ______

.02 _____

[<79.92] [91]

27 28

46Mn 46Mn 

16-2 23-3

23.4 25

*25.7 *24

6.9 ____ _

*34.1 *36

[90.1] [85]

29

23.68 

3.48 

3.52 

1.31 

1.56

46.57 

1 18. 32

98.44

30

46Mn 

23-4

37.15 

*2.58

2.82 

2.86

[ 14.07

*37.0 

2.10

100.6

31 32

46Mn 

23-7

39.92 30 

1.32 ______

*4.15 *15.0 

4.46 ______

.40 ______

( 4 7.90 ______

1 * 49

41.58 *31

100.22 [76]

33

46 Mn 

40-256

4.8

*6.9

.82

. '.14

"78.21

Trace

Trace

[90.9]

34

46Mn 

40-276

47.43

*6.89

*32.4

.05

[86.9]

1 A1(O| + FeO.

* Calculated from repotted Fe, 

MgCO,, P. or Mn.

*FeO.

4 H,O + above 100*C; H,O- below 100»C.

( MnO| =2.03 percent.

*MnO,.

7 Ignition loss.

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis] 

Washington Continued

22. Clallam County. SWiNEi sec. 21. T. 30 N.. R. 12 W., about 2 miles 

northeast of Sappho, Soleduck-Crescent district. State Lease or Beaver 

Creek Falls property; owners C. S. Greenlee, Charles Anderson. Collector 

S. H. Green. ( Hodge, 1938g, p. 29, 34, 35, 57, 60.) [Manganesebearing rock], oxidized, about 3 ft thick. Mineralogy. Channel sample. 

Index map.

Washington Continued

claim. ( Pardee, 1922, p. 229, 232, 234, 239, 240.) Bementite rock, 

light-grayish or yellowish-brown to medium-dark-brown, dull to vitreous. 

Hardness about 6; bulk density about 3.1. Mineralogy. Index map. Possible 

use: Source of manganese.

23. Clallam County. NWiswi sec. 24, T. 30N., R. 12 W. ( Huntting. 1956, 

p. 257). Victor claim. ( Dean and others, 1938, p. .19.) Manganese, 

hard, dense. Mineralogy.

24. Clallam County. NWiNWi sec. 28, T. 30 N., R. 11 W., 1 mile northwest 

of Snider Ranger station (Huntting, 1956. p. 254). Clallam claim. (Dean 

and others, 1938, p. jjj.) Manganese, hard, dense. Mineralogy.

25. Grays Harbor. Si sec. 8, T. 22 N., R. 9 W., about 36 miles by road north 

of town of Hoquiam ( Huntting, 1956, p. 258). E. E. Fishel claim. ( Dean 

and others, 1938, p. _19.) Manganese, hard, dense. Mineralogy.

26. Jefferson County. Earl/ ?) and middle Eocene, bementite rock associated 

with Metcbosin Volcanics. Sec. 7, T. 27 N., R. 3 W., northwest side 

of Iron Mountain. Tubal Cain mine. (Washington Department Conservation 

and Development, 1940, p. 2, 3, 7-11, 21.) Bementite rock, contains 

native copper, massive, vitreous to dull metallic luster; about 6 ft thick. 

Mineralogy. Tonnage estimated.

27. Jefferson County. Sees. 13, 24, T. 26 N., R. 4 W., on south slope of 

Mount Constance. Hkhorn group of claims, Northwestern Manganese 

Producers Assoc. Analyst, W. H. Ott. ( Hodge, 1938g, p. 29, 34, 35, 

53-£5.) Manganiferous rock, oxidized. Mineralogy. Index maps. Possible 

use: Probably none.

28. Mason County. Possibly Mesozoic. NJNi sec. 33, T. 24N., R. 5 W.

(Huntting, 1956, p. 260), 1 mile north of Devils Staircase. Black Hump

29-31. Mason County. Probably Mesozoic. T. 24 N., R. 5 W-., along the north or 

south fork of Skokomish River. Black and White mine. Analyst, 

George Steiger. Record 3225. ( Pardee, Larsen and Steiger, 1921, 

p. 25-29, 30; Pardee, 1922. p, 229, 232, 234, 235. 239, 240; Pardee, 

1928, p. 10, 13, 18.) [Manganese-bearing rock], partly weathered. 

Mineralogy. Possible use: Source of manganese.

29. Partly weathered bementite rock, dull-black, soft, amorphous.

30. Neotocite, dark-brown to black, resinous-lustered. Separated from 

partly weathered bementite rock by heavy solutions.

31. Bementite. Separated from partly weathered bementite rock by heavy 

solutions. Molecular ratios. Physical properties.

32. Mason County. Bementite rock associated with Metchosin Volcanics.

T. 23 N., R. 6 W., Steel Creek area. ( Washington Department Conservation and Development, 1940, p. 2, 3, 7-11, 23.) [Manganese-bearing 

rock] bementite rock. Average of several analyses. Mineralogy. Tonnage 

estimated.

33, 34. Okanogan County. [T. 34 N., R. 26 E.], about 4 miles northeast of town of 

Omak, Pogue Flat. Manganese.

33. Probably Jurassic. ( Patty and Glover, 1921, p. 75,28, 79.) 

Manganese, weathered.

34. (Jenkins, 1918, p. 1082.) Manganese, black, intermixed with quartz. 

Selected sample.
ANALYSES OF SAMPLES 229

Table 19. Analyses of samples fromjdaho^ndj/ashington, most of which contain 50 percent or more gypsum. gypsite. or anhydrite (Group G) . special rock category

[ Chemical analyses arranged by State, county, and stratigraphic position] 

Chemical analyses

SiOt _____ _ _

Al,0, _____

FejO,_

MgO

CaO_ ______ __

NajO_ __

CO2 _ ______

SO, _ ___ _.

NaCl ___ _ _

Na2C03 _______

NaHC03 ______

MgCl2 ___ ____

3MgC03 -Mg(OH) 2 _.

Mg(OH) 2 __

MgSO4 _ _

CaSO4 _________

Total _ __ .

Idaho

1

11G4- 15

4.14

.89

.10

.99

31.40

18.39

2.33

41.13

99.37

2

11G44-4

'6.0 

) 3 1.0

30.4

"(17.5) 

7 19. 9 

41.8

 [99.1]

Washington

3

46G40-274

32.6 

f 8.0 

X 2.3 

4 1.4

1.1

4.6

1.1

9.6

2.1 

37.1

99.9

4

46G40-264

8.5 

3.2 

.7 

4 1.5

2.4

10.6

2.2 

70".4

99.5

5

46G 40-268

15.4 » 

4.4 ~\ 3 

.4 ] 

4 2.6

3.0

.1

5.8

.4 

68.2

100.3 '

6 7

46G40-275

78.4

None 

None 

None 

1.1

4.3 

15.2

99.0

32.7 

f 8.0 

X 1.5

5 6.9

1.5

.6

2.7

4.9

1.5

4.4 

33.2

"97.9

8 9

46G40-272

Z 77.8 

) 3 None

None 

None 

None 

.8

4.7 

15.7

'99.0

28.9 

f 6.7 

V 1.5 

4 .3

5 9.1

1.0

2.0

.9

.4

3.5

4.7 

38.4

WU97.4

10 11 12 13

46G40-267 46G40-258

z 77.4 14.6 2 78.5 5. 

} 3 None / 4 * )3 None <

; V .4 j i .

4 1.8 _____ 4 6.

_ ___ 5 3.7 __ _ 5 4.

_____ 1.9 1.

_ None ___ _ None ___

None ___ __ None __ _

.8 1.8 .6

_ _ 7.4 __ _ 3.

4.9 4.7 3.8 3. 

17.3 60.0 17.5 72.

'100.4 "100.6 '100.4 "lOO.

6 

7 

4 

3 

6

3

4

8

9 

7

7

W ashington C ontinued

SiO2 ____ ____

AljO, 

FezO, .

MgCO3 _ ____ .

CaC03 ____ ___

S ________ _

'Acid insoluble. 

Insoluble. 

3 Rz03 . 

4 MgC03 . 

5 CaC03 .

14

46G40-273

29.0

8.4

1.7

11.0

1.5

_ B Trace

2.1

15

46G40-261

6.4 

1.0 

.5 

1.5 

6.6 

5.1 

"Trace

16

46G40-271

25.4 

7.4 

1.2 

3.6

6.1

17

46G40-262

7.7 

1.9 

.6 

12.0

4.7

18 19

46G40-257

5.2 

1.2 

.5 

9.9

5.2

4.44 

1.02 

.42 

8.45

3MgCOs 

Mg(OH) 2 

Mg(OH), _ 

MgSO4 _

CaSO4 _ 

Total _

14

46G40-273

1.4

4.2 

2.4

37.4

99.1

15 16 17 18 19

46G40-261 46G40-271 46G40-262 46G40-257

.2 

15.4

63.5

100.2

6 Combined water; not included in total. 

7 Total ignition loss. 

'Analysis of crushed size fraction; * inch. 

'Represents material leached by 150 milliliters 

ot water applied in several portions .

1.7 1.3 1.2 1. 

8.5 9.0 12.5 12.

1.6 2.1 3.9 6.

45.1 62.1 60.9 65.

U 100.6 101.4 100.5 100.

"complete analysis of sample including 

items soluble in hot water leaches. 

11 97 . 1 percent in text . 

"Sulfide. 

13 100. 9 percent in text.

02 

46

83 

75

39

DESCRIPTIVE NOTES

Idaho

[Underscored page numbers in reference indicate source of analysis]

1. Bear Lake County. SW? SW* sec. 32. T. 12 S., R. 45 E.. Montpelier

Canyon. Analyst, W. C. Wheeler. ( Clarke. 1915, p. 359; Mansfield, 

1927, p. 2, 348. 349. pis. 1, 9. 12, 19; Stone and others, 1920, 

p. 99.) Gypsum, white, fine-grained, massive; at least 4 ft thick. 

Index and geologic maps, geologic section, generalized columnar 

sections. Use: Probably none.

2. Washington County. Sees. 7, 8, 17, 18, 20, T. 13 N., R. 7 W., North 

of town of Weiser. ( Prater, 1947, p. _!, 2-6.) Gypsum rock, white to

i light-gray; contains some pyrite. Bulk density 2.32. Screen analysis, 

grinding tests, flotation tests.

Washington

3-13. Okanogan County. Holocene [implied]. NWj SW* sec. 4, T. 38 N., 

R. 27 E., 12 miles by road north of town of Tonasket, Poison Lake. 

Analysts, H. D. Benson, R. W. Moulton, and( or) P. G. Hebner. 

( Bennett, 1962, p. 6, 102-105, 110, Ul, J.12-114.) Mineralogy. 

Tonnage estimated. Index and geologic maps. Log of drill hole. Use: 

Source of gypsite and epsomite.

3. Auger-drill hole 1, sample 72. Gypsite, gray; depth 11.7- 

25ft.

4. Auger-drill hole 1, sample 71. Gypsite, gray; depth 6- 

11.7ft.

5. Auger-drill hole 1, sample 70. Gypsite, gray to brown; depth 

0-6 ft.

Washington- -Continued

6, 7. Auger-drill hole 5, samples 60, 60A. Gypsite gravel; depth

17-18 ft. 

8, 9. Auger-drill hole 5, samples 59, 59A. Gypsite, gray, muddy;

depth 10-17 ft. 

10, 11. Auger-drill hole 5, samples 58, 58A. Gypsite, gray, some mud;

depth 3-10 ft.

12, 13. Auger-drill hole 5, samples 57, 57A. Gypsite, light-gray; 

depth 0-3 ft.

14, 15. County, age, and analysts as in samples 3-13. Sec. 3, T. 40 N., R. 25 E., 

about 2.5 miles northwest of Nighthawk Station, Lenton Flat. ( Bennett, 

1962, p. 6, 115, 124,225.) Drill hole sample. Mineralogy. Tonnage 

estimated. Index maps.

14. Sample 78. Mud, black to gray; contains gypsum; depth 6-16 ft.

15. Sample 77. Gypsum, contains some mud and clay; depth 0-6 ft.

16- 19. County, age, and analysts as in samples 3-13. T. 40 N., R. 27 E., about 

4 miles north-northwest of town of Oroville, Poison Lake. ( Bennett, 1962, 

p. 6, 115, 117, 118, 121-123.) Mineralogy. Tonnage estimated. Index maps.

16, 17. SEiSEj sec. 7. Auger-drill hole 3.

16. Sample 80. Mud, black to gray; contains gypsum; depth 

13-30 ft. Measured section.

17. Sample 79. Gypsite, depth 0-13 ft.

18, 19. NE corner sec. 18. Auger-drill hole 2. Mud and gypsite; 

depth 0-2U ft. Measured section.
230 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 20. Analyses of samples from Idaho. Oregon, and Washington, containing 50 percent or mote miscellaneous chloride-, sulfate-. carbonate-,and nitrate-beating 

 material'^ Group 3^~special-iock category

C Chemical analyses recorded here as given in the original publications; no calculations or recalculations have been made by the compilers. Analyses arranged by State and county]

Chemical analyses

Idaho

1 2 3

11S45-46

SiO, _ _____ _ ___ '6.42

Al,0, 

Fe,0, 

MgO 

CaO ___________ ______

Na,0 _ __ ___ __ __ ______

H,O- ___________ .85

MnO __________ ______

Cl ______ _____ _____

cr\_

CO, ______

HCO, __ _ ______ __ ____

NaCl __________ T 91.79

Na£04 ___ ______ ______

NaHCO, ________ ______

Na,CO, ____ _____ __ ____

KC1 ____________ ______

K,S04 

MgCL, _________ ______

CaS04 __________ _ __

8,0, ______

Total ______ 99.06

4.36 ______

.88 ______

.27 ______

.13 ______

.67 ______

.11 ____

_____ 98.900

____ .261

_____ .022

_____ .817

 [6.42] '100.000

Oregon

4 5

36S13-6 36S19-7

*1.25 __ _

47.49 ______

J 10.08 ______

2.90 1.67 

11.76 'Heavy 

26.33 '.18 

_____ .30

_____ '2.75

_____ '.41

_____ '.32

.28 ______

100.09 ______

6 7

36S19-8 36S19-9

2.25 ______

'.60 ______

.13 ______

'3.71 _____

_____ 99+

'.18 ______

'1.06 _____ .

8

36S19-10

.38 

'Heavy 

'6.02 

4.65 

'.63

'6.32 

'10.65

9

36S19-11

5.15 

'Heavy

'8.07 

6.43 

*8.50

'8.74 

'14.28

10

36S19-12

6.23 

'Heavy

'6.74 

4.66 

'10.28

'6.34 

'11.93

11

36S19-13

15.35 

'Heavy 

'14.64 

9.07 

'25.31

'12.33 

'25.90

12

36S19-14

.71 

'Heavy 

'3.74 

8.77 

'1.17

'11.92 

'6.62

13

36S19-5

4 54.00

3.67 

2.49 

3.92 

34.91

1.01

100.00

Oregon Continued

14

36S19-4

SiO, ___________ 0.16

Mo

Ca ___________ ______

Na ___________ ______

K _____________ ______

HO ___________ 4 62.65

Cl _____________ ______

S04 ______

CO, ____________ ______

HCO, _ _________ ___ __

NO, ______

Na£04 _ _ ______ .77

Na,CO, _________ 33.49

Na,B40T _______ __ .07

KC1 ____________ .37

K,S04 ______

BO, ______

I, _____________ .0001

Total ______ 100.00

SiO, ____________________

R,0, ____________________

H,0 _ ___________

NaCl ____ _________ _

Na,SO4 _____________ __

NaHCO, _________________

Na,COj __________________

K,S04 ___________________

MgS04 __

CaSO4 __________________

Total _______________

15 16

36S19-3 36S19-15

0.18 0.21

^.le 4 54.97

1.22 1.49 

.91 1.33 

1.00 2.01 

35.83 38.90 

.11 .12 

.14 .23 

.45 .74

Nil Nil 

.00078 .0016 

.0001 .0001

100.00 100.00

27 28

46S13-25 46S13-23

18.3 10.5 

None None

.5 .2 

80.2 88.4 

None .7 

.7 .9

.2 .3 

None None

99.9 101.0

'insoluble . 

'insoluble in hot water. 

"Water of crystallization. 

'Essentially water of crystallization and a

17 18

36S19-16 36S19-17

0.08 0.08 

_____ .02

4 42.55 453.33

1.93 1.07 

1.92 1.54 

Nil Nil 

53.00 43.35 

.09 .11 

.10 .14 

.33 .36

Nil Nil 

.0010 .0018 

.0004 .0002

100.00 100.00

29 30

46S 13-26 46S13-18

22.4 1.2 

.1 None

1.6 1.3 

75.2 96.5 

.5 None 

.9 1.2

.1 None 

None None

"lOO.S 100.2

19 20

36S19-6 36S19-18

0.20 _____

_____ *(46.00)

3.27 12.12 

1.72 7.83 

1.44 9.45 

18.44 70.80

.18 ______

.24

.89 _____

_____ 1.64

.0001 ______

26.38 101.84

Washington

31 32

46S13-19 46S13-8

1.3 ______

None _____

_____ 3.00

4.0 .86 

88.4 62.37 

None ______

6.3 33.77

100.0 100.00

21

36S19-19

.51 

Heavy 

14.28 

9.93

'.84

'13.50 

'25.28

33

46S13-9

4.51 

1.82 

79.24

14.43

100.00

22

36S19-20

1.54 

Heavy

22.40 

10.24

'2.54

'13.92 

'39.65

34

46S13-10

64.04 

2.77 

1.85

31.34

100.00

23

36S19-1

*(61.00)

15.55 

1.11

.60 

78.95

1.40

97.61

35

46S 13-24

16.3 

None

1.3 

2.4 

None 

78.6

None 

None

98.6

24

36S23-8

Much 

Some 

Much 

Small 

amount

~ "Smiir

amount 

Some 

None

73.75

36

46S13-27

24.6 

None

1.1 

3.1 

None

70.1

None 

None

98.9

25

36S23-11

0.14 

1.61 

31.13

.39

.09 

19.39 

None 

None 

47.25

None

100.00

37

46S 13-21

3.9 

None

2.3 

5.0 

None 

86.1 

.86

None 

None

98.2

26

36S23-10

0.03 

1.77 

13.74

19.75

.18 

4.62 

None 

None 

59.91

None

100.00

38

46S13-14

0.7 

5.3 

None

1.9 

15.4 

None 

74.0

None 

None

97.3

5 SO4 . 'sample 2, analysis of insoluble portion of sample 1; sample 3, 

COj. analysis'of soluble portion of sample 1. 

'Soluble salt. M Water of crystallization; not included in total. 

'Reported as calculated. " 100.6 percent in text.

little insoluble matter; by difference.
ANALYSES OF SAMPLES 231

Specuographic analyses

Si _____________

Al ____________

32

Trace

________ Trace

33

None Fe __ _.

Mg ____________

32

_______ Trace

33

Trace

Ca__ .

K _________ .

32

_________ Trace

_________ Faint trace

33

None

Some

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Idaho Oregon Continued

1 - 3. Bannock County. Between Oligocene and late Pliocene or Pleistocene.

NEi NEi sec. 28, T. 9 S.. R. 46 E.. on Crow Creek near Lowe's ranch. 

Analyst, Chase Palmer. ( Breger. 1910, p. 555, 556. 558, 564. 568; 

Mansfield, 1927, p. 2. 338. 339, pis. 1, 7, 8, 12. 19.) Rock salt, 

reddish-brown; 20 ft thick, overburden 6 ft. Tonnage estimated. Index 

and geologic maps, geologic sections, generalized columnar section. 

Use: Domestic and stock.

Oregon 24 -

4. Harney County. Holocene [implied] . [T. 26 S.. R. 30 W.]. about 6 miles 

west of town of Narrows, near Dog Mountain. Analyst, George Steiger. 

(Russell, 1903, p. 35, 36, pi. 1.) [Sodium carbonate-sodium sulfate] 

efflorescence, white. Index map. Use: Source of sodium carbonate and 

sodium bicarbonate.

5-12. Lake County. Holocene [implied]. Analyst, W. H. Heileman. (Waring, 

1908, p. 59, 60, 74, 75, pis. 6, 10.) Efflorescent saline crust, glaubers 

salt. Index and geologic maps.

5. [Tps. 25. 26 S,, R. 19 E.], region north of Fossil Lake, Sucker 

Flat. Sample 8. Geologic section.

6, 7. [T. 26 S., R. 16 E.]. about 10 miles northwest of Christmas Lake. 27 " 

Samples 6, 7. Geologic section.

8. T. 26 S., R. 18 E., south end of Christmas Lake. Sample 2. 

Geologic section.

9. [T. 29 S., Rs. 22, 23 E., unsurveyed], playa in North Alkali 

Valley. Sample 9.

10. [T. 30 S., R. 22 E.], west side of Alkali Flat. Sample 3.

11. [T. 30 S., R. 23 E.] , edge of pool in Alkali Flat. Sample 4.

12. [T. 30 S., R. 23 E.] . center of Alkali Flat. Sample 5.

13-18. Lake County. Holocene. [T. 30 S., R. 23 E.], Alkali Lake. American 

Soda Products Co. ( Allison and Mason, 1947, p. 1. 9. 11, pi. 1.) 

Tonnage estimated. Index map. Former use: Washing soda.

13. Analyst, L. L. Hoagland. Sample 2. Crystalline salts, composite 

of three samples representing top 2 ft of solid salts.

14. Sample 3e. Crystalline salts, depth 22-28 in. 32 _

15. Sample 3d. Crystalline salts, depth 18-22 in.

16. Sample 3c. Crystalline salts, depth 6-18 in.

17. Sample 3b. Crystalline salts, depth 3-6 in.

18. Sample 3a. Crystalline salts, depth 0-3 in.

19. County, age, reference, and map as in samples 13-18. [T. 30 S., R. 23 E.]. 

Alkali Lake. Sample 5. Crystalline salt, depth 42 in. Tonnage estimated. 

Possible use: Source of high-grade soda.

20. Lake County. Holocene. [Tps. 30-32 S., Rs. 16, 17 E.], Summer Lake. 

Analyst, L. L. Hoagland. ( Allison and Mason, 1947, p. 1, 3, 4, pi. 1.) 

Efflorescent salts. Theoretical mineralogy. Composite of three samples. 

Tonnage estimated. Index map. Possible use: None.

21, 22. Lake County. Holocene [ implied]. Analyst, W. H. Heileman. (Waring,

1908, p. 20, 74, 75, pis. 1, 2, 6, 10.) Efflorescent saline crust, glaubecs 

salt. Index and geologic maps.

21. Tps. 30-32 S., Rs. 17, 18 E., east side of Summer Lake. Sample 1.

22. [T. 33 S., R. 21 E.] , north end of Lake Abert. Sample 10. Geologic 

section.

23. Lake County. Holocene. [Tps, 33. 34 S., R. 21 E.], north end of Abert 

Lake. Analyst, L. L. Hoagland. ( Allison and Mason, 1947, p. 1, _7. 

pi. 1.) Efflorescent salts, 1/16 in. thick. Index map. Possible use: None.

26. Malheur County. T. 24 S., R. 46 E., Sucker Creek. Homed ale deposit.

Analyst. R. K. Bailey. ( Mansfield, 1916, p. 21, 23, 26. 27. 32.) Index 

map. Possible use: None.

24. Sec. 20. Roosevelt claim. Sample S.C. 6. Potassium nitrate with 

admixture of magnesium and sodium sulfates. Selected sample.

25. Sec. 29, Discovery Cave. Dorothy claim. Sample 2983. Sodium 

sulfate and sodium nitrate. Representative sample.

26. Sec. 29. Abbie claim. Sample 2983. Potassium nitrate and sodium 

nitrate, white, finely crystalline, incrustation.

Washington

30. Grant County. Holocene [implied]. SWiswiNWi sec. 15, T. 17 N..

R. 28 E., about 13 miles west of Warden railroad station, formerly Sulphate 

Lake, now flooded. Analysts, H. K. Benson, R. W. Moulton, and( or) 

P. G. Hebner. ( Bennett, 1962, p. 6, 49-52, 53, 54.) Log of drillhole. 

Tonnage estimated. Index and geologic maps.

27. Auger-drillhole 1, sample 21. Mirabilite crystals from pan; 

depth 1.7-4.7 ft.

28. Auger-drill hole 1, sample 20. Mirabilite crystals disseminated in 

mud; depth 0.5-1.7 ft.

29. Auger-drill hole 6, sample 23. Mirabilite crystals disseminated in 

mud; depth 0.5-6.5 ft.

30. Sample 24. Thenardite, crust on old workings; up to 6 in. thick.

31. County, age, and analysts as in samples 27-30. S|SEi sec. 15, T. 17 N., 

R. 28 E., Tucker Lake. Sample 25. (Bennett, 1962, p. 42.) Salt crust, 

less than 0.5 in. thick.

38. Grant County. Holocene [implied] . WiSWi'sec. 18. T. 17 N., R. 29 E., 

9-10 miles west of Warden railroad point, formerly Carbonate Lake, now 

flooded. Analysts, H. K. Benson, R. W. Moulton, and( or) P. G. Hebner. 

( Bennett, 1962, p. 6, 9, 18, 19, 24, 25-28, 30.) Tonnage estimated. 

Index and geologic maps, geologic section.

32-34. Specuographic analyst, G. M. Valentine. Mineralogy. 

Microscopic description.

32. Sample A. Salt crust, finely banded; 1-2 mm thick.

33. SampleB, Salt, white, porous, fragile.

34. Sample C. Salt, white, porous, fragile.

35. Auger-drill hole 3, sample 2. Salt, depth 8-10 ft. Log of drill 

hole.

36. Auger-drill hole 5, sample 4. Salt,disseminated crystals in mud; 

depth 6-9.2 ft.

37. Sample 3. Salt crust, pinkish.

38. Sample 5. Salt crust, white; 6 in. thick. Mineralogy.
232 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 20. Analyses of samples ftom Idaho, Oregon, and Wathington. containing 50 percent or more miscellaneous chloride-. sulfate- , carbonate-.and nitrate-bearing

material (Group S), special-rock category Continued

Chemical analyses Continued

Washington Continued

SiO, ___________

A1.0, __________

Fe.0, 

MgO ___________

CaO ___________

N_*O

V f\

P,05 _

Cl ___________ .

NaHCO, ________

Na.CO, _________

CaCO,- Na,CO, __ .

KrSO, __________

MgSO4 ________ .

3MgCO,-Mg(OH),_. 

CaS04 ________ .

LessO __________

Total ______

39 40 41 42 43

46S13-11 46S13-22 46S13-12 46S 13-13 46S13-15

_____ _____ __ __ _____ 0.8

0.1 5.0 0.3 0.4 1.5

VNOK 'None 'None 'None / N,One 

J \ None

1.4 5.6 1.4 3.8 .9 

10.7 27.4 10.7 30.1 1.2 

None None None None None 

86.8 61.1 86.7 64.3 92.5

3 £9

.2 None .3 None .2

None None None None None

_____ _____ _____ _____ 2.2

99.2 99.1 99.7 99.2 99.3

44

46S13-20

2.0 

18.0 

None 

None

1.3 

1.6 

None 

76.3

None

None

99.2

45

46S13-28

37.6

4.3 

1.3 

1.2

3.8 

2.3

19.2 

*20.1

*6.6

4 3.4

7 99.8

46 47 48 49 50

46S13-16 46S13-17 46S19-44 46S40-263 46S40-250

0,9 1.0 0.82 _____ _ ___

65,8 15.1 _____ 8.1 0.6

None None "\ . . 

> .04 None None None None J

____ .07 ____ ___ _

 .03 

___ _ _____ 45.59 _____ ______

_ __ 9.58 _____ _____

_____ _____ 1.05 _____ _____

.09 _ _ _

_____ _____ .99 _____ ______

3.9 1.6 _____ .6 None

.7 1.3 _____ 88.7 99.1

None None _ ____ None .4

22.9 80.2 _____ .6 None

2.8 _____ _____ 1.1 ______

.2 None ___ _ .2 Trace

None None _ __ _ None None

*7.03 _ _____

S 34.93

_____ _____ 100.22 _____ _____

_____ _____ «.22 _____ ______

97.2 99.2 100.00 99.3 100.1

51

46S40-249

0.1 

4.1

'None

.4 

34.3 

None 

1.2

47.2

1.8

10.1

99.2

Washington Continued

R.O, ___________

MgO _ _ _ _

CaO_ ___ ___ .

NazO _____ __ _.

K.O .

H.O

p_O

CO, ___________

HCO, __________

SO, ____ ___ _ .

Cl _____________

NaCl ___________

Na,S04 _ _______

Na_CO, _________

K_S04 __________

MgSO4 _______ .

CaS04 _____ _____

Subtotal _ _ .

LessO __________

Total ______

52 53 54 55 56

46S40-265 46S40-248 46S40-255 46S40-269 46S40-266

11.3 0.08 3.1 18.7 11.4

_____ 50.90 _____ _____ _____

.4 .23 .5 .8 .4 

86.2 48.28 94.9 76.9 85.9 

None .33 .5 .7 .7

_____ _____ .6 1.0 .6

.8 .18 .5 .5 .4 

1.3 _____ None .5 .5

 

100.5 " 100. 00 100.1 99.1 99.9

57

46S40-259

5.8 

None

.3 

90.3 

Trace 

None

1.8 

1.2

99.4

58

46S40-270

23.7 

None

None 

75.1 

Trace 

None

1.0 

None

99.8

59 60 61 62 63

46S40-252 46S40-242 46S40-243 46S40-251 46S32-58

1.5 0.03 0.03 0.9 *0.96 

None .02 .10 None _ _

_ _ 17.44 17.88 18.1 .06

_____ _____ _____ _____ 51.29

_ _____ _____ _____ 3.07

_____ 48.17 47.32 _____ _____

_____ _____ _____ _____ 1.01

__ __ . _ _ ___ _ .__ _ None _ ____

_____ _____ _____ None ______

34.30 34.64 34.3 4.78

_____ ___ _ _ ___ None 2.22

None _____ _____ _____ ___ __

96.8 _____ _____ __ _ ___ ___

None _ __ _____ _____ __ __

.7 _ _ ____ _ __ ___ _

.8 _ __ _____ __ _ ______

*3.86

_____ _____ _____ '47.0 S 32.83

_ _ _____ 100.08

_____ _____ _____ _____ .49

99.8 99.96 99.97 100.3 99.59

64

46S39-3

'3.03

.14

.05 

41.64 

13.45

.63

1.65 

.34

*4.41 

S 34.14

99.48 

.07

99.41

'R.O,.

2 Does not include combined water. 

Sample oven-dried.

'Organic matter and water of 

crystallization.

4 Includes water and carbon dioxide.

'CO,.

6 Less excess O due to chlorine.

7 Presumably potassium included in 

soda (Bennett, 1962, p. 39). 

'SiO,.

9 At 1 .OOCTC. 

*Fe. Ca. B = None.
ANALYSES OF SAMPLES 233

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Washington Continued

39-47. Grant County. Holocene [implied] . Analysts, H. K. Benson,

R. W. Moult on, and( or) P. G. Hebner. Tonnage estimated. Index and 

geologic maps.

39-42. wiSWi sec. 18, T. 17N., R. 29 E., 9-10 miles west of Warden 

railroad point, formerly Carbonate Lake, now flooded. ( Bennett, 

1962, p. 6, 9. 18, 19. 24, 28, 30.) Geologic section.

39. Auger-drill hole 13, sample 11. Salt, hard; depth 4-6 in. 

Log of drillhole.

40. Anger-drill hole 13, sample 10. Salt, includes crust and 

salt crystals disseminated in mud; depth 0-4 in. Log of 

driUhole.

41. Auger-drill hole 14, sample 14. Salt, white; depth 0-2 ft. 

Log of drill hole.

42. Sample 19. Salt crust.

43-47. Ni SWi sec. 18, T. 22 N.. R. 29 E., about 1 mile southwest of 

Wilson Creek railroad station, Mitchell Lake. ( Bennett, 1962, 

p. 6, 35-^9. 40.)

Washington Continued

52. NEi sec. 10, T. 32 N., R. 26 E., about 8 miles from town of

Okanogan, Penley Lake. Owner, C. A. Kearney. Auger-drill 

hole 1. (Bennett, 1962, p. 6, 95-JJ7, 98.) [Sodium sulfate] 

salts; depth 0-7 ft. Log of drill hole. Tonnage estimated.

53. Sec. 32, T. 32 N., R. 26 E., 9 miles south of Okanogan, Lake 32. 

Analyst, R. C. Wells. Record C-912. ( Wells, 1937, p. 123, 

j.24; Bennett, 1962, p. 6, 64-66, 68.) Mirabilite. Former 

use: Source of sodium sulfate.

54-56. SWlNWi sec. 35, T. 32 N., R. 26 E., Hauan Lake. Owner, 

C. A. Kearney. Auger-drill hole 4. (Bennett, 1962, p. 6, 

76-80.) Salt.

54. Sample 64. Depth 6-9 ft.

55. Sample 63. Depth 3-6 ft.

56. Sample 62. Depth 0-3 ft.

57-59. NWjSWi sec. 36. T. 32 N., R. 26 E., deposit 13. (Bennett, 

1962, p. 6, 81, 82, 84, 85.)

43. Sample 26. Natron, thin layer.

44. Auger-drill hole 1, sample 27. Salt, 2 ft thick.

45. Auger-drill hole 5, sample 30A. Salt, depth 5-7 ft.

46. Auger-drillhole 5, sample 30. Salt, depth 5-7 ft.

47. Auger-drill hole 5, sample 29. Salt from crust 1 in. thick 

and from 1-5 ft of salt pan. Log of drill hole.

48. Kittitas County. [Holocene. T. 18 N., R. 20 E.]. Kittitas Valley on 

Cherry Creek. ( Hilgard, 1892. p. 48, 49.) [Sodium carbonate.]

49-59. Okanogan County. Holocene [implied]. Analysts [except sample 54] 

H. K. Benson, R. W. Moulton, and( or) P. G. Hebner. Tonnage 

estimated. Index and geologic maps.

49. 50. SiSWi sec. 26, T. 32 N., R. 25 E. , B-J Lake. Owner, 

C. A. Kearney. (Bennett, 1962, p. 6, 57-J50.)

49. Auger-drill hole 1, sample 61. Composite salt sample; 

depth 0-3 ft. Log of drill hole.

50. Sample 37. Mirabilite crystals, white, massive or finegrained; about 1.5 in. thick.

57. Auger-driU hole 7, sample 65. Salt, depth 0-7 ft.

58. Auger-drill hole 15, sample 66. Mirabilite crystals, 

coarsely granular aggregate; contains mud and sand 

inclusions.

59. Sample 67. Thenardite, white, powdery; surface layer.

60-62. Okanogan County. Holocene [implied] . T. 38 N., R. 27 E., 12 miles by 

road north of town of Tonasket, Poison Lake. ( Bennett, 1962, p. 6, 102- 

105. 108, 109, 113, 114.) Mineralogy. Tonnage estimated. Index and 

geologic maps. Use: Source of epsomite and gypsite.

60. NWiSWi sec. 4. Analyst, H. C. Rickaby. Sample B. (Walker and 

Parsons, 1927, p. 21-23.) Hexahydrite mixed with epsomite.

61. NEiSEi sec. 5 or NWiSWj sec. 4. Analyst. H. C. Rickaby. Sample 

A. ( Walker and Parsons. 1927, p. 21-23.) Hexahydrite, white, 

efflorescent crust. Bulk density 1.71.

62. NEjSE* sec. 5 or NW«SWj sec. 4. Analysts, H. K. Benson,

R. W. Moulton, and ( or) P. G. Hebner. Sample 81. Epsomite, 

some included mud.

63. Spokane County. [Holocene. T. 28 N., R. 44 E.], 3 miles southwest of 

Cottonwood Springs. (Hilgard, 1892, p. 49.) Sodium carbonate.

51. NEi sec. 1, T. 32 N., R. 26 E., Patterson Lake. Sample 75. 

( Bennett, 1962, p. 6, 91-JJ3.) Salt crust on mud, about 1 in. 

thick.

64. Yakima County. [Holocene. T. 13 N., R. 18 E.], 2 miles west of town of 

Yakima City, on Atahnam Creek. ( Hilgard, 1892, p. 49.) [Sodium 

carbonate. ]
234 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or mote P2O8 (Group P) , special-rock category

[ Most of these analyses report 21.1 percent PiO6 or more, corresponding to 50 percent fluorapatite (9CaO'3PjO6 'CaF2) . Chemical analyses arranged 

by county and stratigraphic position ]

Chemical analyses

Idaho

1 2

11P3-3

SiOj _ ___ __

A120, _

MgO ______ _ _

CaO _______ _ _

Na2O_ ____ _

K20 __ ___ __ _

H2O- _ ______

TiC^ _ ______

P.Oc

MnO ____ ____ .

SO3 _ _ ___ ____

V

Cr _____________

F

Organic matter _ _ _ 

Ignition loss _ _ _

Total _ _ _ _

2.6 

.39 

'.26 

.12

50.9

.76

3 1.3

.4

.07

34.8

1.92

3.45

6 .05

7 1.9 

8 3.52

4 1.45

[101.1]

*1.5 

.35 

.28

35.7

6.20

[44.0]

3 4

11P3- 4 11P3^5

I 17.5 I 17.7 

2.7 2.0 

1.08 .83

26.8 28.1

10.46 7.80

[58.5] [56.4]

5 6

11P3-6

23.8 J 27.3 

4.1

2 1.9

.40

35.4

.57

1.1 _ __ .

'2.1 _ __

.7 ______

.32 _ __

25.7 25.4

2.20 ______

'.10 _____

7 1 ,

8 .76 _ ____

4 .93 __ __

[99.7] [52.7]

7

11P3-7

15.6 

2.3 

1.46

39.5

26.9

.12

2.6

4 4.1

92.58 

4 1.1

[91.5]

8

11P4-93

6.30 

.65 

.32 

.11 

50.13 

.22

.10

4 36.27 

.02

.18

.03 

.02

4.40

4 1.75 

8 1.45

101.95 

4 1.85

[100.10]

9

11P4-97

5.57

.24 

52.00

4 35.85

4 1.60 

8 2.02

[97.28]

10

11P4-96

19.10 

3.82

1.02 

35.00

4 23.98

.04 

.09

4 11.32 

8 3. 42

[97.79]

11

11P4-95

24.24 

4.10

1.21 

31.88

4 21.41

.17 

.09

4 11. 98 

8 3.38

[98.46]

12

11P4-94

19.78 

3.75

.75 

34.06

4 22.83

.33 

.08

4 15. 49 

8 3.06

[100.13]

13

11P4-21

! 21.4 

3.7 

1.3

26.5

7.74

[60.6]

Idaho Continued

Ai.n.

P205 _ __

Total _ _ _

14

11P4-22

23.7 

3.3 

1.2 

25.7 

8.18

[62.1]

15

11P4-23

23.9 

3.6 

2.5 

24.4 

9.62

[64.0]

16 17

11P4-24 11P4-25

22.3 17.7 

2.5 3.0 

.89 1.2 

26.4 27.4 

7.96 9.16

[60.0] [58.5]

18 19

11P4-26 11P4-27

18.8 16.3 

3.4 2.6 

1.5 1.2 

23.7 26.0 

15.18 14.24

[62.6] [60.3]

20

11P4-28

12.9 

2.5 

1.2 

27.2 

14.12

[57.9]

21

11P4-29

3.0 

.86 

.52 

35.6 

6.90

[46.9]

22

11P4-30

8.5 

1.7 

.93 

33.6 

5.08

[49.8]

23

11P4-31

4.2 

.40 

.40 

37.3 

2.36

[44.7]

24

11P4-32

12.5 

2.0 

1.0 

32.5 

2.92

[50.9]

25

11P4-33

21.6 

2.8 

1.16 

27.1 

8.84

[61.5]

26

11P4-34

17.3 

2.8 

1.10 

27.9 

9.08

[58.2]

Idaho Continued

A120,_ _ _

Fe20,_ __

P205 _ _ _ 

Ignition loss _ _ _ _

27

11P4-35

18.2 

3.0 

1.32 

26.9 

9.66

[59.1]

28

11P4-36

23.3 

3.5 

1.34 

24.0 

10.80

[62.9]

29 30

11P4-37 11P4-38

15.8 22.9 

2.6 3.4 

.54 1.16 

27.2 25.4 

12.24 8.76

[58.4] [61.6]

31 32

11P4-39 11P4-40

21.3 12.7 

3.7 2.6 

1.60 1.48 

24.1 28.6 

11,40 16.60

[62.1] [56.0]

33

11P4-41

15.5 

3.7 

1.58 

26.7 

11.70

[59.2]

34

11P4-42

22.3 

5.0 

1.46 

23.0 

12.12

[63.9]

35

11P4-44

24.9 

3.5 

1.20 

24.2 

8.68

[62.5]

36

11P4-45

22.6 

5.4 

1.8 

23.7 

10.56

[64.1]

37

11P4-46

9.7 

1.7 

.68 

31.6 

8.80

[52.5]

38

11P4-47

14.7 

2.3 

.78 

27.4 

13.62

[58.8]

39

11P4-48

22.7 

5.4 

1.9 

21.1 

15.00

[66.1]

Acid insoluble. 

2 Total iron. 

* Total water.

4 Calculated from reported P,C or'F. 

5 Radiometric determination by B.A. McCall.

'Oil by distillation at about 500°C; 

distillate weighed. 

7 230°-500°C.

i cot .
ANALYSES OF SAMPLES 235

Spectrographic analyses

[ Elements looked for but not detected: Li,Ge.Rb,Ru,Rh.Pd,In,Te,Cs,Ce,Pr.Eu,Tb,Er.Lu,Hf,Ta,W,Re.Os.Ir,Pt,Au,Hg,Tl,Bi,Th. For samples 1.5: Analysts. Charles Annell. 

Joseph Haffty; geochemical determinations of As.Sb. and Se by H.E. Crowe,I.E. Swick, R.R.Beins. B = 1-10 percent, D = 0.1-1 percent, E = 0.01-0.1 percent,F = 0.001-0.01 

percent, G = <0.001 percent, ND =not detected]

Be ___

B _____

Na __

Me __

K ___

Sc ____

Ti ____

V ____

Cr____

Mn __

Ni 

Co __

Cu __

Zn __

Ga ___

As 

Se ___

Si ____

1-6.

1

_________ <0.00005

_________ <.005

_________ <.0005

_________ .1

_________ .1

_________ .001

_________ .03

_________ <.001

_________ .003

_________ .03

_________ <.001

_________ .002

_________ .0001

_________ .1

Bannock County . Permian, 

Shale Member. NEi sec. 

and others, 1953. p. 2-4, 

detailed measured section 

1. 2. Sample 4403- RAS.

2

ND 

F 

B 

D 

B

F 

D 

0.05 

E 

F

E

E 

E 

F

ND

F

3

G 

E 

D 

D 

D

F 

E 

0.2 

E 

F

E

E 

E

F

ND

E

4 5

ND < 0.00005 

F <.005

B ______

D ______

B ______

ND .003 

D __

0.20 .01 

E .1 

E .003

E .01 

_____ <.001

E .01 

E <.008 

F .001

ND .004 

_____ .0005

F .1

6

G 

E 

D 

D

B

F 

E 

0.008 

E 

F

E

E

ND 

F

ND 

D

 L ______

Zr_ _____

Nb_ _____

Mo _____

Ag 

Cd _____

Sn ____

Sb_ ___ _

Ba _____

La _____

Nd _____

Gd _____

Dy 

Ho _____

Tm _____

Tfc ______ 

Pb_ _____

1

0.03 

.001 

ND 

.003 

.0003

.01 

ND 

.0003 

.01 

.01

<.006 

ND 

ND 

ND 

ND

ND

.0003 

<.001

2 3

E E 

E F 

F ND 

F E 

G G

F E 

F F 

ND ND 

E E 

E E

ND ND 

ND ND 

ND ND 

ND ND 

F ND

ND ND 

F G 

F F

4

E 

E 

F 

F 

G

F 

F 

ND 

E 

E

ND 

ND 

ND

E 

F

E 

F 

F

5

0.03 

.01 

ND 

.003 

.0003

< .005 

ND 

.0002 

.01 

.03

.03 

ND 

ND 

ND 

ND

ND 

.001 

<.001

6

D 

E 

ND 

F 

ND

ND 

ND 

ND

E 

E

ND

F 

E 

E 

F

E 

E 

F

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis] 

Idaho Idaho Continued

Phosphoria Formation, Meade Peak Phosphatic 19 « SamPle 3292-WOM. Mudstone and phosphate rock, 

1, T. 6 S., R. 38 E., Rocky Canyon. ( Davidson 46.4-46.7 ft from top of member. 

9.10-^14.15.) Trench sample. Index map. 20« Sample 3293- WOM. Phosphate rock. 43.4-46.4 ft from 

top of member . 

Phosphate rock. 133.3-135.3 ft from top of 21. Sample 3295-WOM. Phosphate rock, 39.5-41.0 ft from

member. General mineralogy.

1. ( Gulbrandsen. 1966. p. 770-773, table I.)

3. Sample 4334-HWP. Phosphate rock, argillaceous, 124.3-126.0 ft 

from top of member.

4. Sample 4387-HWP. Phosphate rock, argillaceous. 111.8-112.5 ft

from top of member.

5, 6. Sample 4330-RSJ. Phosphate rock, argillaceous. 56.8-57.2 ft 

from top of member. General mineralogy. 

5. (Gulbrandsen, 1966, p. 770-773, table^.)

7. County, formation, and member as in samples 1-6. [T. 6 S., R. 34 E.,

near] town of Pocatello. Simplot Fertilizer Co. ( Hall and Banning, 1958, 

p. 13.) Phosphatic shale.

8-12. Bear Lake County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. [T. 9 S., R. 45 E.], near Georgetown. ( Emigh. 1958, p. 29, 

31, JJ2-34, fig. 1.) Mineralogy, thin-section description. Index map. 

8, 9. Central Fanners Fertilizer Co. Samples S61, S69. Phosphate

pellets. 

10- 12. Central Farmers Fertilizer Co. mine. General: When fresh,

phosphatic dolomitic shale, black, fine-grained, dense, hard; 

when weathered, shale, brown, soft, fossiliferous; 17-24 ft 

thick.

10. Phosphate pellets, 4 ft above bottom of bed.

11. Phosphate pellets, 8 ft above bottom of bed.

12. Phosphate pellets, 16 ft above bottom of bed.

13-17. County, formation, and member as in samples 8-12. SEi sec. 1, T. 10 S., 

R. 44 E., Georgetown Canyon. ( O'Malley and others, 1953, p. 2, 3, 

27-29.) Phosphate rock, argillaceous. Trench sample. Index map, 

detailed measured section.

13. Sample 2918-DFD, 96.35-98.55 ft from top of member.

14. Sample 2901-DFD, 93.75-94.75 ft from top of member.

15. Sample 2902-DFD, 92.45-93.75 ft from top of^member.

16. Sample 2903-DFD, 90.85-92.45 ft from top of member.

17. Sample 2904-DFD, 89.05-90.85 ft from top of member.

18- 34. County, formation, and member as in samples 8-12. NE*NWi sec. 30, 

T. 10 S., R. 45 E., Georgetown Canyon. Trench sample. Index map, 

detailed measured section. 

18-24. (O'Malley and others, 1953, p. 2, 3, 30. 31-33.)

18. Sample 3291-WOM. Phosphate rock, 46.7-48.7 ft from 

top of member.

top of member.

22. Sample 3299-WOM. Phosphate rock, 35.3-36.3 ft from 

top of member.

23. Sample 3300-WOM. Phosphate rock, 34.1-35.3 ft from 

top of member.

24. Sample 3231-WOM. Phosphate rock and phosphatic 

mudstone, 33.1-34.1 ft from top of member.

25-34. ( Swanson and others, 1956, p. 2, 5, 25.)

25. Sample 7462-LDC. Phosphate rock, argillaceous, 

34.2-34.9 ft from top of member.

26. Sample 7463-LDC. Phosphate rock. 30.4-34.2 ft from 

top of member.

27. Sample 7464-LDC. Phosphate rock, 27.6-30.4 ft from 

top of member.

28. Sample 7284-LDC. Phosphate rock, argillaceous, 

24.0-25.6 ft from top of member.

29. Sample 7286-LDC. Phosphate rock. 21.5-22.0 ft from 

top of member.

30. Sample 7287-LDC. Phosphate rock, argillaceous, 

20.5-21.5 ft from top of member.

31. Sample 7292-LDC. Phosphate rock, argillaceous, 

9.5-11.8 ft from top of member.

32. Sample 7294-LDC. Phosphate rock, 7.4-8.3 ft from 

top of member.

33. Sample 7296-LDC. Phosphate rock, 6.0-6.8 ft from 

top of member.

34. Sample 7297-LDC. Phosphate rock. 0-6.0 ft from 

top of member.

35- 39. County, formation, and member as in samples 8-12. Sec. 31, T. 12 S.,

R. 45 E., Montpelier Canyon. ( McKelvey and others. 1953a, p. 2, 50, 52, 

53, 56.) Trench sample. Index map, detailed measured section. 

H. Sample 2855-RPS. Phosphate rock, argillaceous, 154.76-156.86 ft 

from top of member.

36. Sample RAG-47-47. Phosphate rock, argillaceous, 63.83-64.38 ft 

from top of member.

37. Sample RAG-45-47. Phosphate rock and phosphatic mudstone, 

62.39-63.35 ft from top of member.

38. Sample FCA-151-47. Phosphate rock. 41.13-41.93 ft from top of 

member.

39. Sample FCA-150-47. Phosphate rock, calcareous, argillaceous, 

40.78-41.13 ft from top of member.
236 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. / special-rock category Continued

Chemical analyses Continued

Idaho Continued

A1.Q, .

Fe,Q, ____________

MeO ______ _____ .

CaO ____________ .

Na,0 __________ .

K.O

H.O+ ___ __ ______ .

u **"\_.

Tip, ________ _ .

P,0S 

SO, .

F- ____________ .

Oil ___________ __ .

Ignition lost _ _ __ __

LessO __________ .

Total ________

40

11P4-49

22.3 

3.9 

1.3

24.1

11.60

[63.2]

41

11P4-50

13.7 

2.3 

1.2

28.0

12.34

[57.5]

42

11P4-51

14.9 

3.3 

1.2

25.9

2.67

15.64

63.61 

*1.12

[62.5]

43

11P4-52

5.7 

.8 

.34

33.1

3.54

6.48

49.96 

*1.49

[48.5]

44 45

11P4-53

'13.2 11.7 

2..0 ______

'.86 _____

37.1 ______

.73 ______

'5.9 _____

9 l

.21 ______

25.4 25.8 

3.69 ______

2.50 ______

*9.3 ______

'.16 ______

'.008 ______

T 1.73 ______

105.95 __ _

"1.05 ______

[104.9] [37.5]

46 47

11P4-54

'6.8 

1.6 

f.76 

.27

45.0

.40

.26

*3.8

1.3

.16

32.4

2.75

«5.2

'.13

'.009

T 1.31

102.15

*1.16

[101.0]

5.2

1.1

.60

31.8

13.10

[51.8]

48 49

11P4-55 11P4-56

7.4 5.6 

2.1 .92 

1.1 .74

30.5 35.6

12.56 5.54

[53.7] [48.4]

50

11P4-57

24.8 

2.2 

.55

27.4

3.98

[58.9]

51

11P4-58

20.5 

3.7 

1.1

23.9

13.84

[63.0]

52

11P4-59

19.1 

3.3 

.64

25.3

12.40

[60.7]

Idaho Continued

Acid insoluble _____

A1,O» ____________

Fe.0, _

P-Oj __________ _

Ignition lost ___ ____

Total ________

53

11P4-60

19.1 

2.9 

.68 

27.4 

7.72

[57.8]

54

11P4-61

7.7 

1.3 

.32 

34.2 

5.00

[48.5]

55

11P4-62

22.7 

2.4 

.71 

26.5 

7.12

[59.4]

56

11P4-63

22.0 

4.2 

1.2 

26.5 

5.38

[59.3]

57 58

11P4-64 11P4-69

5.5 2.7 

.83 1.4 

.33 .61 

35.9 36.9 

3.34 3.14

[45.9] [44.8]

59

11P4-70

25.0 

5.8 

2.43 

23.8 

7.88

[64.9]

60

11P4-71

3.4 

1.2 

.84 

35.3 

6.08

[46.8]

61 62

11P4-72 11P4-73

1.7 20.5 

.73 4.1 

.38 1.88 

36.9 26.6 

5.66 6.62

[45.4] [59.7]

63

11P4-74

4.3 

1.1 

.64 

35.5 

5.28

[46.8]

64

11P4-75

22.7 

4.8 

1.74 

25.8 

6.40

[61.4]

65

11P4-76

11.1 

2.8 

.67 

33.3 

2.76

[50.6]

Idaho Continued

Ai.n.

Fe.0, __

Pf>s -

Ignition loss ____ _

Total ___ ____

66

11P4- 77

6.4 

1.5 

.43 

35.6 

2.32

[46.2]

67

11P4-78

23.0 

4.3 

1.34 

27.4 

3.12

[59.2]

68

11P4-79

17.8 

3.2 

.60 

28.9 

6.66

[57.2]

69

11P4-80

6.2 

1.4 

.57 

35.6 

2.94

[46.7]

70 71

11P4-81 11P4-82

2.8 16.3 

.86 3.5 

.33 1.19 

37.8 29 <4 

2.62 4.58

[44.4] [55.0]

72

11P4-83

4.3 

.94 

.34 

36.8 

2.40

[44.8]

73

11P4-84

3.0 

1.1 

.34 

36.9 

3.34

[44.7]

74 75

11P4-85 11P4-86

1.8 6.1 

.56 .74 

.27 .30 

38.1 36.2 

3.32 2.86

[44.0] [46.2]

76

11P4-87

8.0 

.92 

.21 

35.6 

2.64

[47.4]

77

11P4-88

9.5 

.98 

.31 

34.7 

2.56

[48.0]

78

11P4-89

17.9 

3.16 

1.36 

28.1 

14.16

[64.7]

Idaho Cominned

Sip, ___________

Ai.n.

Fe,0, ____________

MgO _____________

CaO _____________

NafO ____ _______

v mr\

H,O+ , ____________

H.O- ____________

P,0, .

MnO _____________

CO, _____________

SO, ____________ .

F ______________ .

Cl _

V ______________ .

Cr,0, _ .

MoO, __________ .

LessO _ ________ .

Total ________

J SiO,. 

* Total iron or total Fe

79

11P4-90

"10.6 

2.19 

1.06

32.0

15.73

[61.6]

80

11P4-43

0.46 

2.62 

.97 

.40 

.35

48.91 

.97

.34

1.34

1.02

None 

33.61

2.42

2.16

.40 

Trace

(">

95.97 

.16

95.81

81

11P4-91

6.3

1.5

46.5

30.8

3.1

.17

88.37 

*1.31

[87.1]

82

11P4-92

6.6

2.4

46.0

31.1

3.2

.19

89.49 

*1.35

"U88.1]

83 84

11P4-65 11P4-66

23.0 16.8

11.5 4.3 

2.2 2.3

15.8 30.2

_____ .2

21.9 22.8

.6 .7 

*.2 "l.2

M .50 ".49

< .01 <.01 

3.1 8.5 

8.6 16.2

[87.4] [103.7]

85

11P4-67

6.8

1.1 

.9

49.2

<.01 

32.7

1.7 

".6 

2.6

".14

< .01 

.5 

7.0

103.26 

*i.09

[102.2]

86

11P4-68

'10.36

1.90 

'.97 

.17

45.27 

.64

.46

.09 

32.21 

.005

1.77 

11 1.43 

3.43 

.03

B.15 

.13

"None

"l.88

100.90 

'1.44

99.46

'CO.. 

'Calculated from reporter1 F.

87 88

11P6-4 11P6-5

"12.9 "24.3 

2.29 4.35 

.73 1.52

29.6 23.1

9.16 10.72

[54.7] [64.0]

B v,o».

BMo.

89

11P6-6

3.5

.3 

".5

.2 

50.2

,

35.4

.1 

"4.5

[94.7 3

90

11P6-7

18.1

3.1 

".9 

.3

39.0

27.4

1.3 

"5.0

[95.1]

91

11P6-11

"15.7 

1.2 

.49

28.4

2.77

8.92

57.48 

'1.17

[56.3]

4 230°-500°C.

* Oil by distillation at about 

500°C, distillate weighed.

'Radiometric determination by B.A. McCall.

Acid insoluble. 

Fe.

s.

Ignition loss, constant weight at 1,000* C, corrected 

for total CO, and for oxidation of pyritic sulfur , when 

present.

l_ At /-L l.OOO'C. ..(Uuu \_. 

M Toul sulfates; acid insoluble sulfide = 0.00 percent. "Minor constituents and CO, known to be present.
ANALYSES OF SAMPLES 237

Spectiographic analyses

[ C = 1-5 percent, D = 0.1-1 percent, E =0.01-0.1 percent, F =0.001-0.01 percent. For samples 44,46, elements looked for but not detected: Li,Ge,Rb,Nb,Ru,Rh,Pd,In,Sn,Te, 

Cs.Ce.Pr.Sm.Eu.Gd.Tb.Dy.Ho.Er.Tm.Lu.Hf.Ta.W.Re.Os.Ir.Pt.Au.Hg.Tl.Bi.Th; analysts, Charles Annell, Joseph Haffty; geochemical determinations of As.Sb.Se, by 

H.E. Crowe, I.E. Swick, R.R. Beins]

Be ___

B _____

Na __

Sc ___

Ti __ _

V. ____

Cr ____

Mn __

Ni _ __

Co __

Cu __

Zn ___

Ga ___

As ___

40-43.

44 46

_________________________ < 0.00005 <0. 00005 .

_________________________ <.005 <.005

_________________________ .003 .001

_______________________ _ .03 .1

________________________ .1 .3

_________________________ < .001 .003

_________________________ .1 .03

_________________________ < .001 <.001

_________________________ .01 .01

_________________________ .03 .03

_________________________ < .001 <.001

_________________________ < .001 <.001

89

F 

D

E

D 

D 

E 

E 

F 

F

D

90

E 

C

D 

D 

D

E 

E 

F 

F 

E

D

Se _________ _ ______ .

Sr ___________________

Y ___________________

Zr __________________

Mo __________________

Ag __________________

Cd __________________

Sb __________________

Ba_ ________ ____

La __________________

Nd __________________

Yb __________ _ ______

Pb _______________

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis] 

Idaho Continued

Bear Lake County. Permian, Phosphoria Formation, Meade Peak Phosphatic Sample 

Shale Member. Sec. 31, T. 12 S., R. 45 E., Montpelier Canyon. 75. 4053-MAW 

( McKelvey and others, 1953a, p. 2, 50, 51, 52-57.) Phosphate rock. 76. 4055-MAW 

Trench sample. Index map, detailed measured section. 77. 4057- MAW

44

.___ 0.001

___ .1

___ .1

__ .003

__ .01

__ .003

__ .01

__ .001

__ .01

__ .03

__ .03

__ .001

___ <-001

46 89

0.0005 ______

.1 E

.03 ______

.003 F 

.03 F 

.001 ______

.03 ______

.001 ______

.01 E

.01 ______

< .006 ______

.0003 ______

< .001 E

90

E

E 

E 

F

E

E

Idaho Continued 

Ft from top of member

22.8-23.4 

21.5-21.9 

20.0-21.2

40. Sample FCA-149-47; 40.38-40.78 ft from top of member.

41. Sample FCA-148-47; 39.58-40.38 ft from top of member.

42. Sample FCA-66-47; 37.78-38.18 ft from top of member.

43. Sample FCA-197-47; 20.15-20.90 ft from top of member. 

44-49. County, formation, and member as in samples 40-43. Sec. 8, T. 14 S., 

R. 43 E., Paris Canyon. ( O'Malley and others, 1953, p. 2, 34-37.) 

Phosphate rock. Trench sample. Index map, detailed measured section. 

44,45. Sample 1846-DFD. Microphanite phosphorite, 149.8-150.9 ft

from top of member. General mineralogy.

44. (Gulbrandsen, 1966, p. 770-773, table Jl.) 

46, 47. Sample 3160-WOM. Pellet phosphorite, 22.8-23.9 ft from top

of member. General mineralogy.

46. (Gulbrandsen, 1966, p. 770-773, table I.)

48. Sample 3162-WOM; 21.4-22.4 ft from top of member.

49. Sample 3171-WOM; 14.1-15.8 ft from top of member. 

50- 57. County, formation, and member as in samples 40-43. Sec. 21, T. 14 S.,

R. 43 E., Bloomington Canyon. ( O'Malley and others, 1953, p. 2, 38-43.) 

Drill hole samples. Index map, detailed measured section.

50. Sample 947-RHT. Phosphate rock, argillaceous, 168.70-169.90 ft 

from top of member.

51. Sample 823-RMC. Phosphate rock, argillaceous, 21.7-22.7 ft from 

top of member.

52. Sample 821-RMC. Phosphate rock, 20.1-21.1 ft from top of member.

53. Sample 817-RMC. Phosphate rock, 16.3-17.2 ft from top of member.

54. Sample 816-RMC. Phosphate rock, 15.3-16.2 ft from top of member.

55. Sample 815-RMC. Phosphate rock, 14.4-15.2 ft from top of member.

56. Sample 812-RMC. Phosphate rock, 12.8-13.2 ft from top of member.

57. Sample 811-RMC. Phosphate rock, 11.8-12.8 ft from top of member. 

58-77. County, formation, and member as in samples 40-43. SEi sec. 36, T. 14 S., 

R. 44 E., Dingle [railroad station]. ( Sheldon and others, 1953, p. 2, 

25-28.) Phosphate rock. Index map, detailed measured section. 

Samples 58-66, from tunnel; samples 67-77, trench samples. Samples 59, 

64, 67, 68, 71, phosphite rock, argillaceous; sample 62, phosphatic 

mudstone and phosphate rock.

58.

59.

60.

61.

62.

63.

64.

65.

66.

67.

68.

69.

70.

71.

72.

73.

74.

Ft from top of member 

32.2- 34.1 

30.7- 32.2 

28.6- 30.7 

26.7- 28.6 

25.9- 26.7 

25.0- 25.9 

24.0- 25.0 

23.3- 24.0 

20.8- 21.2 

111.5-113.3 

99.5-101.0 

31.6- 33.2 

30.5- 31.6 

28.3- 29.0 

26.0- 26.9 

25.2- 26.0 

24.0- 25.2

78, 79. County, formation, and member as in samples 40-43. Sec. 13, T. 15 S.,

R. 44 E., Hot Springs. ( Sheldon and others, 1953, p. 2, 29, 30.) Trench 

sample. Index map, detailed measured section.

78. Sample 4593-HWP. Phosphate rock, argillaceous, 30.35-32.25 ft 

from top of member.

79. Sample 4595-HWP. Phosphate rock, 27.85-29.45 ft from top of

member. 

80. County, formation, and member as in samples 40-43. Tps. 10, 11 S.,

Rs. 44, 45 E., 8 miles east of Georgetown. Utah Fertilizer and Chemical 

Manufacture claim. Analyst, George Steiger. ( Gale and Richards, 1910, 

p. 459, 465. 484, 487, 488, pi. 5; Clarke, 1915, p. 352; Kirkham, 1925, 

p. 317-319, 321, 324, 333.) Phosphate rock, dark-grayish-brown, oolitic; 

averages 6 ft thick. Bulk density about 2.90-2.95. Tonnage estimated. 

Index and geologic maps, geologic sections. Use: Fertilizer.

81, 82. County, formation, and member as in samples 40-43. [T. 13 S., R. 44 E.), 

near town of Montpelier. San Francisco Chemical Co. Phosphate rock. 

General mineralogy. Beneficiation tests. Possible use: Fertilizer, source 

of elemental phosphorus.

81. ( Stickney and Wells, 1955, p. 1-3, 4.)

82. ( Hall and Banning, 1958, p. 1-4, 9-13, 44.) Possible use: Source of

vanadium, chrome, artificial fluorspar or synthetic cryolite.

83-85. County, formation, and member as in samples 40-43. [T. 14 S., R. 43 E.] 

( Ravitz and others, 1949, p. 308. 309, 320.) Use: Source of vanadium, 

fertilizer.

83. 84. Paris and Bloomington Canyons.

83. Phosphatic shale.

84. Oolite rock.

85. Bloomington Canyon. Phosphate rock.

86. County, formation, and member as in samples 40-43. [T. 14 S., R. 43 E.] , 

near Paris. Sample 550. (Jacob and others, 1933, p. 16, 22, 28.) 

Phosphate rock. Tonnage estimated. 

87,88. Bingham County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. SEiNWi sec. 31, T. IS., R. 39 E., Wolverine Canyon. ( Smart 

and others, 1954, p. 2, 4, 8, j>, 10.) Trench sample. Index map, 

detailed measured section.

87. Sample 4800-ERG. Phosphate rock, 51.0-52.0 ft from top of member.

88. Sample 4818-RAG. Phosphate rock, argillaceous, 31.4-33.2 ft from

top of member.

89, 90. County, formation, and member as in samples 87,88. Sees. 2,11,14,15,22, 

T. 4S., R. 37 E., east of Fort Hall. Gay mine. Collector, A.L. Service. 

( Mabie and Hess, 1964, p. 2, 3, 5, 7, 8, 9, 12, 13, 48, 58, 78-80; Service 

and Popoff, 1964, p. 6, 11, 12, 28,31-33,63.) Phosphorite, light-brown, 

nonfrtable. Mineralogy. Tonnage estimated. Index map; compositional 

classification triangle, cumulative curves of pellet and gangue size. 

Physical properties. Possible use: Agricultural, chemical, metallurgical. 

[For another analysis from same measured section see sample 109 group B.]

89. Field No. ALS-14, medium-grained; 3.2 ft thick.

90. Field No.-ALS-l2, fine-grained, argillaceous, siliceous; 12.0 ft thick. 

91. County, formation, and member as in samples 87, 88. Sec. 22, T. 4 S.,

R. 37 E. Fort Hall Indian Reservation, Simplot mine. Sample 2139-WOM. 

( O'Malley and others, 1953, p. 2, 5, 6-8.) Phosphate rock, 69.4-69.9 ft 

from top of member. Index map, detailed measured section.

487-187 O - 73 - 16
238 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more P^Og (Group P) , special-rock category Continued

Chemical analyses Continued

92 93

11P6-13

SiO, __ ____ .

Al,0, _ __

Fe,0, _________

CaO_ _______

Na,0 _______ .

Tin.

P*0j .

MnO _ _______

CO, _

SO, __________

Cr

Oil ___________

eU ___________

LessO_ _______

Total _____

SiO, _____ _ .

Al,0, _ .

Fe,0, __.

MgO __________

CaO __________

Na,O ________ .

K .D

H,O+ _________

H,0- _________

TiO, __ ______

P,0S .

CO, .

F ____________

V ____ _______

Cr_ _________

Oil ________ .

eU ___________

Less O _________

Total ___ .

SiO, _______ .

Al,0, .

Fe,0, .

MgO ________ .

CaO __________

Na,O __ __

K,0 

H,O+ __ _ _

B.O- ________

TiO, ________

P*0S -

CO, _.

F _____

V,0, _________

Cr _________

9.0

__ 1.4

__ l .66

47

46-0

44

__ '2.1

32.0

. __ 1.92

__ 1.52

__ *2.8

T .13

_ _ 102.68

. __ 4 1.24

___ [101.4]

105

11P6-23

14.66

. __ .59

__ 41.70

___ 4 29.11

2.02

__ 4 4.15

[92.23]

118

11P10-12

__ *4.3

. __ .56

. __ .30

34.8

'11.04

*7.7 

1.3 

.67

32.4

*5.76

[47.8]

106

11P6-10

6.42 

2.48

49.17

35.33 

*4.95 

3.15

101.50 

4 1.33

100.17

119

94 95

11P6-14

10.9 *9.9

1.2 ______

'1.4 ______

.68 ______

45.4 __ __

.46 _ __

.36 ______

'1.6 ______

.3 _ _

.12 ______

31.8 32.0

2.83 ______

1.10 ______

2.98 _____

 l.9 ______

Mo ______

103.14 ______

4 1.25

[101.9] [41.9]

107 108

11P6-9 11P6-8

5.62 5.57 

1.05 1.91

4938 49.64

35.24 35.65 

*6.13 *5.80 

3.00 3.04

100.92 101.61 

4 1.26 4 1.28

99.66 100.33

120 121

11P10-13 11P10-14

2.5 

.32 

'.27 

.08

52.5

.86

.09

»1.9

.4

.02

35.2 

2.76 

4.00

*2.4 '3.5 

.30 .72 

.25 .51

35.6 34.2 

*7.89 *8.65

Idaho Continued

96 97 98

11P6-12 11P6-15 11P6-16

*13.4 X 24.9 1 18.6 

2.2 3.0 3.3 

.77 1.1 1.2

31.6 26.3 28.1

*4.36 *5.46 *5.78

[52.3] [60.8] [57.0]

Idaho Continued

109 110 111

99

11P6-18

3.75 

.87 

.39 

.27 

49.79 

.66

.15

4 32.22 

Trace 

5.93 

1.64

3.03

.03 

.04 

4 1.90

100.67

4 1.28

[99.39]

112

11P6-17 11P6-22 11P10-15

5.8 4.03 7.6 

1.2 _____ 1.2

.96 _____ '.67

_____ .19 .62

46.9 51.36 45.8 

_____ _____ 1.0

_____ _____ .32

_____ _____ '2.1

_____ _____ .7

_____ _____ .15

32.9 4 28.67 29.2

3.3 _____ 3.53

.12 _____ _____

_____ .15 ______

4 3.4 _____ *1.3

_____ _____ T .15

_____ _____ ".Oil

94.58 __ 98.69

4 1.4 _____ 4 1.49

[93.2] [94.70] [97.2]

Idaho C ontinued

122 123 124

11P10-16 11P10-17 11P10-18

*5.8 '6.9 T13.5 

.88 .57 1.94 

.46 .68 .90

35.8 35.4 29.5 

S 9.07 S7.72 *9.41

"8.7 

5,72 

.75

28.9 

*9.02

.012

[51.1]

125

11P10-19

'16.4

.82 

.70

31.1 

*10.33

100 101

11P6-19 11P6-21

4.18 5.37 

1.11 1.26

.49 .29 

47.13 46.76

4 32.40 4 33.20

3.W 2.28

.04 .04 

.07 .09 

4 4.35 4 3.62

[93.54] [92.91]

113 114

11P10-20

11.0 '20.7 

1.1

2 .96 ______

.25 ______

46.0 ______

.80 ______

.29 ______

»1.S ______

.3

.10 ______

31.2 30.8 

2.90 ______

3.28 ______

6 .9 ______

'.05 ______

'.009 .008

100.44

4 1.38 ______

[99.1] [51.5]

126 127

11P10-21 11P10-22

*21.6 *19.3 

6.3 4.4 

1.1 2.1

24.1 18.0

.04 .41

102 103

11P6-20 11P6-25

2.29 13.57

.54 ______

.26 .62 

49.40 43.24

4 34.21 4 30.02

3.13 2.16

.15 _ ___

.05 _ ___

4 3.18 4 3.03

[93.21] [92.64]

115 116

11P10-10

6.5 *4.6 

1.1 1.14 

'.72 .84

.17 ______

47.8 ______

1.0 ______

.25 _ ____

»1.8

.3 ______

.10 ______

33.0 32.8 

1.10 *4.61 

4.15 ______

'2.2 ______

T .10 ______

'.012 .013

100.30

4 1.75 _ ____

[98.6] [44.0]

128 129

11P10-23 11P10-24

'8.5 *24.5 

5.4 7.2 

2.0 2.4

32.3 18.6

.D3 . 10

104

11P6-24

20.25

1.02 

37.79

4 25.12

3.05

4 4.39

[91.62]

117

11P10-11

'11.9 

1.80 

1.28

31.5 

* 11.52

.007

[58.0]

130

11P45-34

13.82 

.68

.11

43.75

431.56

2.09

".06 

.03
ANALYSES OF SAMPLES 239

Table 21. Analyses of samples from Idahp_of phosphate rock_or nodules cpntaining^l^percen^or more P2O5 (Group P) , special-rock category Continued

Chemical analyses Continued

Oil___ _______

eU_ ___________

Less O __________

Total ______

Acid insoluble . 

2 Total iron. 

3 Total water.

118 119 120 121

11P10-12 11P10-13 11P10-14

6 1 2

_ ______ '.05 ______ ______

.004 8 .003 .004 .004

_ __ __ 102.15 _____ ______

_ _____ 4 1.68 _____ _ _ _

[51.0] U[100.5] [46.4] [47.6]

4 Calculated from reported 

P, C, orF. 

'ignition loss. 

6 230°-500°C.

Idaho Continued

122 123

11P10-16 11P10-17

[52.0] [51.3]

7

500°(

8

byB,

124 125 126

11P10-18 11P10-19 11P10-21

____ _____ 7.6

.009 .008 ______

[55.3] [58.4] [60.7]

Oil by distillation at about 

I , distillate weighed . 

Radiometric determination 

.A. McCall.

127 128

IIP 10 -22 11P10-23

24.9 2.5

[69.1] [50.7]

9 Calculated 

organic matter. 

U V. 

uTh = 8 ppm

129 130

11P10-24 11P45-34

15.0 4 3.94

[67*8] [96.04]

; insoluble less

Spectrographic analyses 

[ Elements looked for but not detected: Li,Ge.Rb.Nb,Ru,Rh,Pd,In,Sn,Te,Cs,Ce,Pr,Sm,Eu,Gd,Tb,Dy,Ho,Et,Tm .Lu.Hf.Ta.W ,Re,Os,lr,Pt,Au,Hg,Tl,Bi]

Be _______

B ________

Sc _______

V ________

Cr

Mn _______

Ni ________

Co _______

Cu _______

Zn _ _____

Ga _______

As _______

Se _______

92

_____ < .00005

_____ < ,005

_____ < ,0005

_____ .03

_____ .1

_____ .001

_____ .01

_____ <.001

_____ .003

_____ .03

_____ < .001

_____ .002

_____ .0003

94

< 0.0001

<.005

<.0005

.03

.1

.01

.01

<.001

.01

.03

<.001

.002

.0003

111

< 0.00005

.001

.03

.1

.003

.03

<.001

.01

.03

<.001

.002

.005

113

< 0.00005

.01

.003

<.001

<.001

.003

.0007

115

.03

.01

<.001

.01

.02

.003

119

.003

<.001

.004

.001

Sr ____

Y ____

Zr ___

Sb ___

Ba __

Nd__.

Yb__.

Pb _ .

92

.01

.01

_ < .001

94

.03

.01

.03

<.001

111

.01

.03

.03

<.001

113

.01

.03

<.001

115

0.1

.03

.03

.03

.001

<.001

119

0.1

.01

.1

.03

<.001

DESCRIPTIVE NOTES

Idaho Continued

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued

92-98.

97.

106- 108.

109.

110.

Bingham County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. Sec. 22, T. 4 S., R. 37 E., Fort Hall Indian Reservation. Simplot mine. ( O'Malley and others, 1953, p. 2, 6, 7, 8; 

samples 92, 94, Gulbrandsen, 1966, p. 770-773. table_!.) Phosphate 

rock. Index map, detailed measured section. 

92-95. Pellet phosphorite; general mineralogy.

92, 93. Sample 2144-WOM, 63.1-63.8 ft from top of

member. 

94, 95. Sample 2157-WOM, 48.6-49.6 ft from top of

member.

Sample 2659-WOM, 35.9-36.6 ft from top of member. 

Sample 2663-WOM, 31.5-32.8 ft from top of member. 

Sample 2679-WOM, 18.2-18.9 ft from top of member. 

County, formation, and member as in samples 92-98. [T. 4 S., R. 37 E., 

east of Fort Hall.] Gay mine. ( Emigh, 1958, p. 21, 22, 23, 24-27, 

29, 30, figs. 1, 8.) General: Phosphate pellets in groundmass of 

calcite, dolomite, and detrital minerals; fresh rock, black, dense; 

weathered rock, brown, porous; fossiliferous. Mineralogy, thin-section 

description. Index map. Surface sample.

99. Sample S128, 1 ft above bottom of bed.

100. Sample S131, 3 ft above bottom of bed. 

Sample S133, 5 ft above bottom of bed. 

Sample S132, 5 ft above bottom of bed. 

Sample S129a. Weathered sample, light-brown; 14 ft above 

bottom of bed.

104. Sample S129b. Unweathered sample, dark-brown; 14 ft above 

bottom of bed.

105. Sample S130, 20 ft above bottom of bed. 

County, formation, member, and locality as in samples 99-105. ( Martin,

1958, p. 1047, 1048.) Phosphate oolite. Mineralogy. 

County, formation, member, and locality as in samples 92-98. Simplot

Fertilizer Co. ( Hall and Banning, 1958, p. 1-9, JL3-19, 44.) Phosphate

rock. General mineralogy. Beneficiation tests. Possible use: Fertilizer,

source of phosphorus, vanadium, chrome, artificial fluorspar or synthetic

cryolite. 

County, formation, and member as in samples 92-98. [T. 4S., R. 40 E.]

Blackfoot property. Sample S56. ( Emigh, 1958, p. ^5-20.) General:

Phosphate rock, black or brown, dense, fossiliferous; 3-8 in. thick.

Surface sample, phosphate pellets. Mineralogy, thin-section

description.

Photomicrograph.

101.

102.

103.

Ill- 125. Bonneville County. Phosphoria Formation, Meade Peak Phosphatic Shale

Member. ( Smart and others, 1954, p. 2, 5, 6, 7, 11-13; Sheldon, 1963, 

p. 52, 57, 65-73, 75-81, 92-98, 154, 165-l|3, 174, 179. pis. 4, 6-9, 

12; samples 111, 113, 115, 119, Gulbrandsen, 1966, p. 770-773, 

table 1_.) Mineralogy. Channel sample. Tonnage estimated. Index and 

geologic maps, detailed measured section, correlated columnar sections. 

111-114. NWi sec. 17. T. 1 N., R. 43 E.. north side of Fall Creek.

Ill, 112. Sample 5310-FDF. Phosphorite, brownish-black, 

calcareous, coarsely pelletal to finely nodular, 

fossiliferous; 38.6-41.0 ft from top of member. 

113, 114. Sample 5337-RGW. Phosphorite, dark-gray, 

sandy, oolitic, fossiliferous; 1.0-2.0 ft from 

top of member.

115-125. NEi sec. 31, T. 1 S., R. 45 E., near Bear Creek. Phosphorite. 

Fence diagram.

Sample Ft from top of member 

115, 116. 6514-RPS 52.5-53.5

117. 6558-MAW 12.4-12.7

118. 6559-MAW 11.0-12.4 

119, 120. 6561-MAW 8.5- 9.8

121. 6563-MAW 5.8- 6.9

122. 6564-MAW 3.9- 5.8

123. 6565-MAW 2.9- 3.9

124. 6566-MAW .6- 2.9

125. 6567-MAW .0- .6

126-128. County, formation, and member as in samples 111-125. NE? sec. 19, 

T. 1 N., R. 46 E., on ridge between Austin Creek and Dry Canyon. 

Analyst, F. L. Schmehl. (Gardner. 1944, p. 3, 13, 20, 21, 22, pis. 1, 

4.) Channel sample. Index and geologic maps, geologic section, 

detailed measured section, correlated columnar sections. Possible use: 

Fertilizer, source of vanadium.

126. Sample H-2. Phosphate rock, dark-gray to black; 2.2 ft thick.

127. Sample H-ll. Phosphate rock, black, thin-bedded; contains 6 in.- 

bed of pellets; 2.3 ft thick.

128. Sample H-16. Phosphate rock, light- to dark-gray; 1.5 ft thick.

129. Information [except locality] as in samples 126-128. Wi sec. 27, T. 2N., 

R. 45 E., Thompson Peak. Sample G-2. Phosphate rock, black; contains 

pellets; 2.0 ft thick.

130. Information [except locality] as in samples 99-105. Caribou County. 

[T. 5 S., R. 39 E.] Chesterfield property. Sample S126.
240 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more PjO^( Group JP) , special-rock category Continued

Acid insoluble ___

A120, .

Fp.n.

MgO _______ .

CaO _________

P£>s _________ .

V

Cr _________ .

Organic matter _ _

Total ____ .

Acid insoluble __ _

A1A 

PfjTl.

MgO 

CaO __________

NajO __________

KjO __________

H»O+ _________

H20- _________

Ti02 __________

P.O. __________

F _____________

Oil ___________

eU ___________

LessO _________

Total ______

Acid insoluble _____

AljO, __________

FejO, __________

MgO __________

CaO __________

NajO __________

K.O

H.O+ __ ______

H.O- _________

TiOj __________

P.O. 

SO, __________

Cl ____________

F _____________

Oil ___________

eU ___________

Ignition lost ______

LessO _________

Total _____

131 132

11P45-35 11P15-11

'2.01 23.4

.46 3.06

. _ _____ 1.10

.12 ______

50.79 ______

. _ * 36.11 26.6

.12 ______

.04 ______

2 2.80 ______

*2.16 3.75

. _ C94.61] [57.9]

144 145

11P15-23 11P15-24

8.7 4.5

.82 .54

.70 .59

35.2 36.8

2.33 2.69

__ [47.8] [45.1]

157 158

11P15-34 11P15-35

3.4 2.7

.66 .76

.35 .57

36.00 36.00

7.30 5.14

._- [47.7] [45.2]

133 134

11P15-12 11P15-13

7.5 18.5

4.36 1.44

.90 1.00

34.5 29.9

2.65 2.35

[49.9] [53.2]

146 147

11P15-25

'4.6 3.5

.81 .78

4 .38 .47

.17 ______

49.1 ______

.68 ______

.22 ______

»2.1 ______

.5 ______

.11 ______

34.3 34.0

3.45 ______

«3.0 ______

7 .13 ______

'.86 6.15

100.42 _____

'1.45 ______

[99.0] [44.9]

159 160

11P15-36 11P15-37

12.3 20.6

.65 1.2

.31 1.56

34.00 28.40

2.15 3.92

[49.4] [55.7]

Chemical analyses Continued

Idaho Continued

135 136 137

11P15-14 11P15-15 11P15-16

18.2 15.8 2.6

2.2 2.3 .59

27.7 27.6 34.9

6.93 9.72 7.81

[56.4] [56.4] [46.4]

Idaho Continued

148 149 150

11P15-26 11P15-27 11P15-28

15.8 20.9 18.3

2.2 3.0 2.3

29.2 26.1 27.5

6.50 7.85 7.72

[54.8] [58.8] [57.0]

Idaho Continued

161 162 163

11P15-38 11P15-39

21.3 *8.1 5.7

4.5 1.6 1.8

1.66 4 .68 .68

_____ .15 _____

_____ .33 _____

_____ .54 _____

_____ »1.8 _____

_____ .4 ______

27.0 34.7 33.7

_____ .75 _____

_____ .03 _____

_____ 3.30 _____

_____ *1.7 _____

_____ 7 .15 _____

_____ '.012 ______

5.36 *1.49 3.84

_____ 103.17 ______

[59.8] [101.8] [45.7]

138 139 140

11P15-17 11P15-18 11P15-19

18.9 16.7 9.0

2.2 2.6 2.0

1.01 1.52 .80

26.1 28.2 32.0

10.05 8.27 7.48

[58.3] [57.3] [51.3]

151 152 153

11P15-29 11P15-30 11P15-31

20.6 19.2 5.5

2.6 2.8 1.0

.96 .67 .37

26.8 27.2 33.6

7.65 7.53 7.57

[58.6] [57.4] [48.0]

164 165 166

11P15-40 11P15-41

20.4 J 14.2 15.5

3.7 3.8 3.6

1.47 4 2.0 1.97

_____ .20 _____

_____ 40.7 _____

_____ .58 _____

_____ .80 _____

_____ *2.9 _____

_____ .8 _____

_____ .20 ______

26.3 29.0 28.5

_____ 2.88 _____

_____ *1.9 _____

_____ 7 .10 _____

_____ '.009 ______

7.32 '.72 5.12

_____ 100.79 _____

_____ 2 1.21 ______

[59.2] [99.6] [54.7]

141 142

11P15-20 11P15-21

2.3 10.3

.76 1.2

.34 .59

37.2 34.0

3.26 2.20

[43.9] [48.3]

154 155

IIP 15-32

'll.l 10.7

1.7 ______

4 2.6 ______

.11 ______

44.0 ______

.56 ______

.37 ______

»2.1 ______

.6 ______

.16 ______

31.4 32.0

3.50 ______

*2.1 ______

7 .10 ______

'.006 ______

'.87 ______

101.28 ______

2 1.47 ______

[99.8] [42.7]

167 168

11P15-42 11P15-43

24.0 21.0

4.1 3.9

1.3 1.2

26.5 25.2

9.02 9.60

[64.9] [60.9]

143

11P15-22

4.3

.75

.50

36.6

3.20

[45.4]

156

IIP 15-33

5.0

.76

.50

34.80

5.88

[46.9]

169

IIP 15-44

9.7

2.7

.60

31.5

7.86

[52.4]

'SiO,.

'Calculated from reported P, C or F.

'CO,.

4 Total iron.

'Total water.

$ 230°-500«C.

7 Oil by distillation at about 500«C, 

distillate weighed.

* Radiometric determination, 

B.A. McCall.
ANALYSES OF SAMPLES 241

Spectrographic analyses

[ Elements looked fct but not detected, samples 146.154.162,165: U.Ge.Rb,Nb.Ru.Rh.Pd.Sn.Te.Cs,Ce.Pr.Sm.Eu,Gd.Tb.Dy,Ho.Er.Tm,Lu,Hf,Ta,W,Re.Os.Ir,Pt.Au,Hg,Tl, 

Bi.Th; analysts, Charles Annell. Joseph Haffty; geochemical determinations of As.Sb.Se, by H.E. Crowe, J.E. Swick. R.R. Beins. Elements looked for but not detected, 

samples 161.163,164.166-169: Li.K,Rb.Nb.Sn.Te,Cs.Pr,Sm.Eu,Gd.Tb,Dy,Ho,Er,Tm,Lu,Hf.Ta.W,Pt.Au,Tl,Bi,Th; D =0.1-1 percent, E = 0.01-0.1 percent.F=0.001-0.01 

percent, G =<0.001 percent, ND = not detected]

Be __ ,

8 ______________

Na _____________ , Mg 

Sc _______________

Ti __________ __ .

V_ ____________ . _ .

Cr ____________ .

Mn ____________ .

Ni ____________ .

Co _____________ .

Cu _____________ .

Zn _____________ .

Ga _____________ .

As _____________ .

Sr _____________ .

Y ______________ .

Zr _____________ .

Mo ____ _ _______ .

Ag .

Cd _____________ .

In _____________ .

Sb _____________ .

Ba _____________ .

U __________ _ _ .

Nd _____________ .

Yb _________ _ .

Pb _____________ .

146

_____________ < 0.00005

_____________ <.005

_____________ <.0005

____________ .1

____________ .1

____________ .001

____________ .01

____________ <.001

____________ .01

_____________ .01

_____________ <.001

_____________ .001

______ __ .1

_____________ .03

_____________ .003

_____________ .003

_____________ .0003

_____________ .03

_____________ ND

_____________ .0005

_____________ .01

_____________ .01

_____________ <.006

_____________ .0003

_____________ <.001

154

< 0.00005

<.005

<.001

.01

.1

.01

.03

<.001

.01

.01

<.001

.005

.002

.1

.03

.003

.01

.0003

<.005

ND

.0007

.01

.03

.03

.0003

<.001

161

ND

ND

D

E

ND

E

D

D

D

E

ND

F

E

ND

ND

D

E

F

F

G

F

G

ND

F

E

ND

G

F

162

0.0003

<.005

<.0005

.1

.1

.003

.01

<.001

.01

.03

 c.OOl

.002

.1

.03

.003

<.0005

.001

.01

ND

.0005

.01

.01

<.006

.0003

 c.OOl

163

ND

ND

D

E

ND

E

D

D

E

E

ND

F

E

F

ND

D

E

F

F

G

E

ND

ND

F

F

ND

G

F

164

ND

ND

D

E

ND

£

D

D

D

E

ND

E

E

F

ND

D

E

E

F

G

E

G

ND

F

E

ND

F

E

165

< 0.00005

<.005

.001

.01

.1

.03

.03

<.001

.01

.03

.001

.005

.004

.1

.03

.003

.003

.003

<.005

ND

.001

.01

.03

.01

.001

<.001

166

ND

ND

D

E

ND

E

E

D

D

E

ND

F

E

F

ND

D

E

F

F

G

ND

G

ND

ND

E

ND

G

F

167

ND

ND

D

E

ND

E

D

D

E

E

ND

E

E

F

ND

D

E

F

F

G

E

G

ND

F

ND

ND

G

E

168

ND

ND

D

E

ND

E

D

D

E

E

ND

E

E

F

ND

D

E

F

F

G

E

G

ND

F

ND

ND

G

E

169

ND

ND

D

E

ND

F

D

D

E

E

ND

F

ND

ND

ND

D

E

F

F

G

F

ND

ND

F

E

ND

G

ND

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

131. Caribou County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. [T. 5 S., R. 39 E.] Chesterfield property. Sample 

S127. ( Emigh, 1958, p. 21, 22, 24-26.) General: Phosphate pellets 

in groundmass of calcite, dolomite, and detrital minerals; fresh rock, 

black, dense; weathered rock, brown, porous, soft; fossiliferous. Mineralogy, thin-section description. Index map. Sample 2 ft below top 

of bed.

132- 134. County, formation, and member as in sample 131. Sec. 20, T. 5 S., 

R. 41 E., Reservoir Mountain. ( Davidson and others, 1953, p. 2, 4, 

jj-7, 8.) Phosphate rock. Trench sample. Index map, detailed 

measured section.

132. Sample 4732-MET, 167.7-169.3 ft from top of member.

133. Sample 4736-MET, 160.8-161.8 ft from top of member.

134. Sample 4720-JDW, 10.1-10.6 ft from top of member.

135- 145. County, formation, and member as in sample 131. Sec. 34, T. 5 S., 

R. 43 E., Gravel Creek Divide. ( Davidson and others, 1953, p. 2, 4, 

16-18.) Phosphate rock. Trench sample. Index map, detailed 

measured section.

135. Sample 5881-MAW. 100.5-101.2 ft from top of member.

136. Sample 5827-RGW, 85.8-87.4 ft from top of member.

137. Sample 5828-RGW, 85.0-85.8 ft from top of member.

138. Sample 5804-HWP, 65.4-66.4 ft from top of member.

139. Sample 5812-HWP, 26.1-27.6 ft from top of member.

140. Sample 5813-HWP. 24.1-26.1 ft from top of member.

141. Sample 5814-HWP, 23.1-124.1 ft from top of member.

142. Sample 5815-HWP, 21.8-23.1 ft from top of member.

143. Sample 5816-HWP. 20.8-21.8 ft from top of member.

144. Sample 5817-HWP, 20.0-20.8 ft from top of member.

145. Sample 5818-HWP, 18.9-20.0 ft from top of member.

146- 160. County, formation, and member as in sample 131. SEi sec. 10, T. 6 S., 

R. 42 E.. town of Henry. ( Davidson and others, 1953, p. 2, 4, 20-23; 

samples 146, 154, Gulbrandsen. 1966, p. 770-773, table JL) Phosphate 

rock. Trench sample. Index map, detailed measured section.

146, 147. Sample 4252-RAS, 193.2-195.0 ft from top of member. 

General mineralogy.

148. Sample 4109-MET, 187.2-188.5 ft from top of member.

149. Sample 4113-MET, 179.4-180.9 ft from top of member.

150. Sample 4114-MET, 177.2-179.4 ft from top of member.

151. Sample 4652-JDW, 171.1-173.1 ft from top of member.

152. Sample 4654-JDW, 165.3-168.9 ft from top of member.

153. Sample 4655-JDW, 164.4-165.3 ft from top of member. 

154, 155. Sample 4263-RAS, 100.3-101.0 ft from top of member. 

General mineralogy.

156. Sample 4265-RAS, 38.6-40.5 ft from top of member.

157. Sample 4267-RAS, 37.3-37.9 ft from top of member.

158. Sample 4268-RAS. Phosphate rock, contains carbonate rock 

lenses; 36.1-37.3 ft from top of member.

159. Sample 4269-RAS, 35.3-36.1 ft from top of member.

160. Sample 4272-RAS, 30.9-31.6 ft from top of member.

161- 169. County, formation, and member as in sample 131. Sec. 24, T. 6 S., 

R. 42 E., North Wooley Range. ( McKelvey and others, 1953a, p. 2, 

5-7, 8, 9; samples 162, 165, Gnlbrandsen, 1966, p. 770-773, table 1.) 

Phosphate rock. Trench sample. Index map, detailed measured 

section.

161. Sample 1299-WOM. Phosphate rock, argillaceous, 153.45-

153.75 ft from top of member. 

162, 163. Sample 1312-RAH, 147.25-149.05 ft from top of member.

General mineralogy.

164. Sample 1242-CEW, 124.95-126.45 ft from top of member. 

165, 166. Sample 1243-CEW, 122.75-124.95 ft from top of member. 

General mineralogy.

167. Sample 1211-CEW. Phosphate rock and phosphatic mudstone, 

37.05-38.55 ft from top of member.

168. Sample 1212-CEW. Phosphate rock, argillaceous, fossiliferous; 

33.5-37.05 ft from top of member.

169. Sample 1304-WOM. Phosphate rock, fossiliferous, 

28.8-33.5 ft from top of member.
242 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent ot more P;OS (Group P) , special-rock category Continued

Chemical analyses Continued

Acid insoluble ___

Ai.n.

FejO, _.

PZ05 _ _ _ 

Ignition loss ____.

Total ____

AljO, __ _____

FejO, __, 

MgO _ _ ____

CaO ______ _ .

PZ05 

V _ ___ ____

Cr ___ ______

Organic matter

Ignition loss _ _ .

Total ___ .

Al-0, __ 

Fe-0, 

PZ05 _________

Ignition loss _ _ .

Total _ _ .

A1.0, __ _____

Fe-0, _ 

P.OS _____

Total __ .

'siOj.

[ B = 1- 10 percent , 

Rb.Nb.Sb.Te.Cs 

209-217: Ce]

B _ _________

Na ___ _____

Mg __________

Ti __________

V ___________

Cr ___________

Mn __________

Ni __________

Co _____ ___

Cu __

Zn __ _ __ _

Ga _ ________

Sr __________

Y ____

Zr ______ _

Mo _________

Ag __ ___ _

Cd __________

Sn __________

Ba __________

170

11P15-45

_ __ .37

36.3

4.80

_ __ [46.6]

183

11P15-58

___ .78

___ .54

35.6

. __ 6.31

-__ [45.3]

196

11P15-70

14.7

1.4

_ _ .85

___ 31.7

__ 3.18

. __ [51.8]

209

11P15-83

__ 14.7

_ _ 2.6

.48

32.2

- _ 5.74

. __ [55.7]

D = 0 . 1- 1 percent , 

.Pr.Nd.Sm.Eu.Gd

171

11P15-46

16.8 

3.3 

.96 

29.4 

5.22

[55.7]

184

IIP 15- 59

9.5 

1.8 

.85

32.1

5.81

C50.1]

197

11P15-71

16.1

2.5 

1.1 

30.2 

4.42

[54.3]

210

11P15-84

24.6 

1.9 

.48 

32.0 

5.24

[64.2]

, E= 0.01-0 

.Tb.Dy.Ho

172

11P15-47

11.6 

2.2 

.85 

32.2 

4.64

[51.5]

185

11P15-60

3.3 

.74 

.49

35.4

5.68

[45.6]

198

11P15-72

10.1 

1.2 

.44 

34.5 

2.16

[48.4]

211

11P15-85

5.1 

1.1 

.38 

36.3 

3.34

[46.2]

.1 percent, 

.Er.Tm.Lu.

170 171

ND ND 

D D 

E E 

E E 

D D

D D 

E E 

E E 

ND ND 

F F

E E 

ND F 

D D 

E E 

F F

F F 

G G 

E ND 

ND ND 

F E

173

IIP 15-48

16.2 

2.12 

1.14 

29.9 

5.50

[54.9]

186

11P15-61

2.0 

.37 

.49

36.4

5.22

[44.5]

199

IIP 15- 73

5.1 

.98 

.82 

32.4 

19.80

[59.1]

212

11P15-86

13.0 

2.2 

.63 

32.2 

10.02

[58.0]

F = 0.001-0. 

Ta.W.Pt.Au

172 199

ND ND 

D D 

E D 

E E 

E E

D E 

E E 

E E 

ND ND 

F F

ND E 

ND ND 

D D 

E F 

F F

F ND 

G G 

ND E 

ND ND 

F F

Idaho C ontinued

174 175 176

11P15-49 11P15-50 11P15-51

7.6 5.7 5.6 

1.27 1.01 1.06 

.76 .49 .68 

34.4 35.4 34.5 

4.10 3.85 5.45

[48.1] [46.4] [47.3]

Idaho Continued

187 188 189

11P45-33 11P15-62 11P15-63

^3.49 18.5 8.0 

.71 4.7 2.1 

_ _ _ 1.02 .84

.33 ____ ______

48.33 _____ ______

*33.89 26.8 33.3

.20 _____ ______

.05 _____ ______

*4.42 _____

'2.13 7.72 5.76

[93.55] [58.7] [50.0]

Idaho Continued

200 201 202

11P15-74 11P15-75 11P15-76

5.9 13.0 20.7 

1.4 2.0 3.5 

.56 .92 1.25 

34.5 31.3 27.4 

8.88 6.62 6.60

[51.2] [53.8] [59.4]

Idaho Continued

213 214 215

11P15-87 11P15-88 11P15-89

15.4 20.5 20.1 

3.6 3.1 3.4 

1.94 .85 1.15 

28.5 27.2 27.1 

8.10 8.38 8.84

[57.5] [60.0] [60.6]

177

11P15-52

16.8 

2.74 

1.28 

29.3 

4.70

[54.8]

190

11P15-64

5.0 

1.7 

.64

34.6

5.94

[47.9]

203

11P15-77

12.1 

2.7 

.98 

31.3 

9.36

[56.4]

216

11P15-90

21.1 

3.8 

1.24 

25.8 

9.88

[61.8]

178

11P15-53

5.9 

.96 

.46 

35.7 

3.57

[46.6]

191

IIP 15-65

16.3 

4.4 

1.72

28.8

6.64

[57.9]

204

11P15-78

12.7 

2.4 

1.15 

31.4 

5.82

[53.5]

217

11P15-92

12.0 

2.6 

.80 

30.1 

9.28

[54.8]

179

11P15-54

21.5 

5.4 

2.2 

25.6 

5.88

[60.6]

192

IIP 15-66

3.7 

1.5 

.64

36.2

5.66

[47.7]

205

11P15-79

18.1 

3.1

1.77 

27.3 

8.94

[59.2]

218

11P15-93

20.5 

2.6 

1.33 

27.0 

6.74

[58.2]

180

11P15-55

18.2 

3.8 

1.5 

28.3 

4.80

[56.6]

193

11P15-67

19.7 

3.1 

1.1

28.5

4.70

[57.1]

206

11P15-80

17.4 

3.2 

1.14 

27.4 

9.80

[58.9]

219

11P15-94

2.0 

.51 

.51 

37.1 

4.96

[45.1]

181

11P15-56

24.9 

4.4 

1.5 

23.1 

11.08

[65.0]

194

11P15-68

22.7 

3.7 

.56

26.8

6.28

[60.0]

207

11P15-81

11.3 

2.8 

1.05 

29.9 

11.32

[56.4]

220

11P15-95

2.8 

1.9 

.85 

35.8 

7.92

[49.3]

'Calculated from reported P, or C. *CO,.

Spectrographic analyses 

01 percent, G =< 0.001 percent, ND = not detected . Elements looked for but not detected: Li, 

.Tl.Bij additional elements looked for but not detected; samples 170-172, 199-208: K.Hf.Th;

200 201 202 203 204 205

ND ND ND F ND ND 

D D B ODD 

ODD D D D 

E E E E E E 

E E E D E E

E E E E D D 

F E ND F F E 

E E E E E E 

ND ND E ND ND ND 

F F F F F F

E E E E E E 

ND ND ND ND ND F 

D D D E D D 

F F E E E E 

F F F F F F

ND F F G F F 

G G ND G G G 

E E E E E E 

ND ND ND F ND ND 

F F F E F F

206 207

ND ND 

D D 

D D 

E E 

E E

D D 

F F 

E E 

ND ND 

F F

ND ND 

ND ND 

E E 

E E 

F F

ND ND 

G G 

ND ND 

ND ND 

F G

208 209

ND ND 

D B 

E D 

F E 

E D

E E 

E F 

E E 

ND ND 

F E

ND E 

ND F 

E E 

E E 

F F

F ND 

ND G 

E E 

ND F 

F E

210 211

G ND 

D D 

D D 

E E 

D D

E E 

F F 

E E 

ND ND 

E E

E E 

ND ND 

E E 

E E 

E E

ND ND 

G G 

E E 

F F 

E E

212 213

G G 

D D 

D D 

E E 

D D

E E 

F E 

E E 

ND ND 

E E

E E 

F F 

E E 

E E 

E E

ND ND 

G G 

E F 

F ND 

E E

214 215

G G 

D D 

D D 

E E 

D D

E E 

F F 

E E 

ND ND 

E E

E E 

F F 

E E 

E E 

F F

ND ND 

G G 

E E 

F F 

E E

182

11P15-57

10.9 

2.8 

1.0 

31.7 

6.10

[52.5]

195

11P15-69

19.9 

3.1 

1.6

28.5

4.38

[57.5]

208

11P15-82

3.7 

1.1 

.36 

36.2 

6.50

[47.9]

221

11P15-96

16.6 

2.6 

1.15 

30.6 

4.60

[55.6]

Be.Sc.As, 

samples

216 217

G G 

D D 

D D 

E E 

D D

E E 

F F 

E E 

ND ND 

E E

E E 

F F 

E E 

E E 

F F

ND ND 

G G 

E E 

ND ND

P F
ANALYSES OF SAMPLES 243

Spectrographic analyses Continued

La_____________________-__ E E

Yb__________________________ G G

Pb____________________________ ND ND

170 "J7J~ T72 199 200 201 202 203 204 205" 206 207 208_209 210 211 212 213 214 " 215 216 217

E E E E E F~" ET "E E" E " E* F F F E E E E' E E

GGGGG GGGGGG GG GGGGGGG

ND ND ND ND E F F ND ND ND ND F F F F F F F F___F

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

170-172. Caribou County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. Sec. 24, T. 6 S., R. 42 E., North Wooley Range. 

( McKelvey and others, 1953a, p. 2, j>-8.) Phosphate rock. Trench 

sample. Index map, detailed measured section.

170. Sample 1305-WOM, 28.2-28.8 ft from top of member.

171. Sample 1200-RLP, 27.0-28.2 ft from top of member.

172. Sample 1202-RLP, 25.2-26.0 ft from top of member.

173-178. County, formation, and member at in samples 170-172. Sec. 16,

T. 6 S., R. 43 E.. Rasmussen Ridge, Enoch Valley. ( Davidson and 

others, 1953, p. 2, 4, 24-26, 27.) Phosphate rock. Trench sample. 

Index map, detailed measured section.

173. Sample 4286-KBK, 151.7-153.7 ft from top of member.

174. Sample 4287-KBK, 150.2-151.7 ft from top of member.

175. Sample 4288-KBK, 147.6-150.2 ft from top of member.

176. Sample 4289-KBK. 146.4-147.6 ft from top of member.

177. Sample 6071-RAS, Phosphate rock and argillaceous phosphate rock, 

	3.8-4.8 ft from top of member.

178. Sample 6072-RAS. Phosphate rock, 2.2-3.8 ft from top of member.

179-182. County, formation, and member as in samples 170-172. NWi sec. 26, 

T. 7 S., R. 42 E., Woodall Creek. (O'Malley and others, 1953, p. 2, 

9-11, 12.) Trench sample. Index map, detailed measured section.

179. Sample 1173-RAG. Mudstone and phosphate rock, 102.0-103.0 

ft from top of member.

180. Sample 1184-VEM. Phosphate rock, 97.7-98.4 ft from top of 

member.

181. Sample 1997-WOM. Phosphate rock, argillaceous, 12.0-13.2 ft 

from top of member.

182. Sample 1998-WOM. Phosphate rock, 11.4-12.0 ft from top of 

member.

183- 186. County, formation, and member as in samples 170-172. Sec. 7, T. 7 S., 

R. 43 E., Ballard Trench. ( Davidson and others, 1953, p. 2, 4, 28.) 

Phosphate rock. Trench sample. Index map, detailed measured 

section.

183. Sample 4574-HWP, 4.3-5.1 ft from top of member.

184. Sample 4576-HWP, 2.8-4.3 ft from top of member.

185. Sample 4577-HWP, 1.8-2.8 ft from top of member.

186. Sample 4578-HWP, 1.1-1.8 ft from top of member.

187. County, formation, and member as in samples 170-172. [T. 7 S.,

R. 43E.], near Soda Springs, Ballard mine. Sample S70. ( Emigh, 1958. 

p. 21, 22, 24-26, figs. 1, 5.) General: Phosphate pellets in groundmass of calcite, dolomite, and detrital minerals; fresh rock, black, dense, 

hard; weathered rock, brown, porous, soft; fossiliferous. Sample 2 ft 

below surface. Mineralogy, thin-section description. Index map.

188-192. County, formation, and member as in samples 170-172. NE* sec. 10, 

T. 7 S., R. 43 E., Little Long Valley. ( Swanson and others, 1956, 

p. 2, 5, _23, 24.) Phosphate rock. Trench sample. Index map, 

detailed measured section.

188. Sample 7354-RPS, 174.5-179.0 ft from top of member.

189. Sample 7356-RPS, 168.2-174.2 ft from top of member.

190. Sample 7358-RPS, 162.4-167.7 ft from top of member.

191. Sample 7361-RPS, 149.4-153.4 ft from top of member.

192. Sample 7398-RPS, 26.9-29.1 ft from top of member.

193- 198. County, formation, and member as in samples 170-172. Sec. 24, T. 7 S., 

R. 43 E., Blackfoot Narrows. ( O'Malley and others, 1953, p. 2, 13_-16.) 

Trench sample. Index map, detailed measured section.

193. Sample 1859-WOM. Phosphate rock, 149.3-150.2 ft from top of 

member.

194. Sample 1959-WOM. Phosphate rock, argillaceous, fossiliferous; 

16.6-19.5 ft from top of member.

195. Sample 1960-WOM. Phosphate rock, 16.1-16.6 ft from top of 

member.

196. Sample 1929-WOM. Phosphate rock, 15.5-16.1 ft from top of 

member.

197. Sample 1930-WOM. Phosphate rock, 14.6-15.5 ft from top of 

member.

198. Sample 1945-WOM. Phosphate rock, 12.1-12.7 ft from top of 

member.

199-208. County, formation, and member as in samples 170-172. Sec. 6, T. 7 S., 

R. 44 E., North Rasmussen Valley. ( McKelvey and others, 1953a, p. 2, 

10, 11-13, 14, 15.) Phosphate rock. Sample 202, phosphate rock and 

mudstone; sample 205, phosphate rock, fossiliferous. Trench sample. 

Index map, detailed measured section.

Ft from top of member 

131.65-132.15 

115.60-119.60 

112.30-114.60 

110.60-111.50 

109.20-110.60 

106.65-108.15

92.75- 95.75

21.2 - 25.3

19.9 - 21.2

11.2 - 12.5

209-217. County, formation, and member as in samples 170-172. Sec. 9, T. 7S., 

R. 44 E., Rasmussen Valley. ( McKelvey and others, 1953a, p. 2, 16-18. 

19, 20.) Phosphate rock. Sample 213, phosphate rock, fossiliferous. 

Trench sample. Index map, detailed measured section.

Ft from top of member 

103.9-105.0 

91.9- 94.2 

87.2- 91.9 

82.7- 86.7 

73.9- 77.1 

17.1- 17.6 

14.5- 17.1 

13.5- 14.5 

11.1- 12.1

218- 221. County, formation, and member as in samples 170-172. Sec. 28, T. 7 S., 

R. 44 E., Kendall Canyon. (O'Malley and others, 1953, p. 2, 20, 21, 

22, 23.) Trench sample. Index map, detailed measured section.

218. Sample 1538-WOM. Phosphate rock, argillaceous, fossiliferous; 

144.9-145.4 ft from top of member.

219. Sample 1604-WOM. Phosphate rock, 14.5-15.1 ft from top of 

member.

220. Sample 1608-WOM. Phosphate rock, 10.5-11.0 ft from top of 

member.

221. Sample 1612-DFD. Phosphate rock, 8.9-9.7 ft from top of member.
244 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Chemical analyses Continued

A1.0, _________

Fe,0, _________

MgO __________

CaO ______ _ _.

P.OS __________

V ____________

Cr _________ .

Ignition loss ____ .

Total _____

Acid insoluble ____

A1.0, _________

Fe.0, _________

Na.O ______ _ _

H.O .

P.OS 

so.

F

Cr _

Ignition loss _ _ _.

LessO _________

Total _____

A1.0, _________

Fe,0, _________

P.OS __________

F ___________ .

Ignition loss ___ _.

Subtotal __ .

Less O* _______ .

Total ___ _

222

11P15-97

7.5

3.2

34.6

3.46

_ [50.5]

235

11P45-30

'3.81

.85

.49

.72

.16

, _ '27.09

.02

2.33

__ *7.17

__ *9.74

-_ '1.14

_ [101.85]

248

IIP 15-117

16.6

2.2

.95

28.3

__ 2.39

__ 6.46

__ 56.90

__ 1.01

 [55.9]

223

11P15-98

3.3 

.61 

.32

36.3

10.22

[50.8]

236

11P45-31

'6.00 

.54

.21 

49.85

'31.92

.01 

.02 

'.76 

*5.1fi

[94.47]

249

IIP 15- 118

6.9 

3.5 

1.7 

33.0 

2.55 

5.24

52.89 

1.07

[51.8]

224

11P15-99

15.0 

3.3 

1.36

29.4

5.98

[55.0]

237

11P45-32

1 1.59 

.56

.25 

49.30

32 .86

.19 

.03 

'7.46 

*4.03

[96.27]

250

IIP 15-119

10.4 

1.7 

.91 

31.8 

2.84 

5.96

53.61

1.20

[52.4]

225

11P15-100

17.3 

3.3 

1.12

29.5

3.52

[54.7]

238

11P45-29

J13.00 

2.09 

1.37

i .in

30.50

7 .11

[48.47]

251

IIP 15- 120

18.9 

2.8 

1.1 

27.8 

2.56 

6.76

59.92 

1.08

[58.8]

Idaho Continued

226 227 228

11P15-101 11P15-102 11P15-103

9.4 6.6 *6.0 

1.5 1.6 1.3 

.69 .56 *1.6 

__ _ <.l

___ _ _____ 48.9

33.2 35.3 34.1

__ _ ____ ".2

8.70 2.74 S 3.8

[53.5] [46.8] [96.0]

Idaho Continued

239 240 241

11P15-105 11P15-106 11P15-107

14.2 11.1 12.2 

2.4 1.8 2.0 

1.2 1.0 1.2

27.7 29.6 29.3

'.25 '.19 '.26

12.6 10.7 10.4

[58.4] [54.4] [55.4]

Idaho Continued

252 253 254

11P15-121 11P15-122 11P15-123

8.6 16.5 14.4 

1.3 2.2 2.3 

.58 1.1 1.2 

33.1 29.4 29.6 

2.49 2.67 2.82 

6.16 6.18 7.38

52.23 58.05 57.70 

1.05 1.12 1.19

[51.2] [56.9] [56.5]

229

11P15-104

'18.0 

2.5 

*.7 

2.5 

36.4 

23.1

4 2.0 

*11.2

[96.4]

242

11P15-111

20.5 

3.3 

1.32

26.7

6.66

[58.5]

255

IIP 15- 124

5.7 

.8 

.61 

34.0 

3.27 

6.18

50.56 

1.38

[49.2]

230

11P45-39

'20.67 

3.97

.38 

29.29 

'22.12 

.05 

.04 

'10.88 

6 5.39

[92.79]

243

11P15-112

20.1 

4.1 

1.48

23.9

16.74

[66.3]

256

11P15-125

14.6 

1.5 

.97 

30.6 

2.97 

5.02

55.66 

1.25

'[54.4]

231

11P45-38

"20.66 

4.23

.89 

31.66 

'22.83 

.20 

.12 

'13.67 

'2.85

[97.11]

244

IIP 15- 113

24.8 

5.5 

1.53

20.4

15.76

[68.0]

257

11P15-126

6.7 

1.1 

.80 

33.9 

3.23 

5.22

50.95 

1.36

[49.6]

232

11P45-40

'7.10 

.96

.31

45.23 

*29.36 

.07 

.03 

'10.20 

6 4.73

[97.99]

245

11P15-114

15.5 

4.1 

1.59

28.9

7.00

[57.1]

258

11P15-127

11.7 

1.9 

1.3 

31.6 

3.04 

5.22

54.76 

1.28

[53.5]

233

11P45-37

'4.46 

.83

.19 

47.04 

*32.36 

.12 

.04 

'9.45 

*2.60

[97.09]

246

11P15-115

11.5 

1.7 

1.22

33.0

3.24

[50.7]

259

11P15-128

3.2 

.7 

.58 

36.7 

3.65 

4.18

49.01 

1.54

[47.5]

234

11P45-36

'23143 

4.44

.19 

33.21 

'23.66 

.12 

.04 

'9.45 

'2.60

[97.14]

247

IIP 15-116

5.6 

.63 

.46

36.9

1.84

[45.4]

260

IIP 15-129

16.7 

3.2 

.7 

26.9 

2.55 

9.9

59.95 

1.07

[58.9]

'SIO,. 'Calculated from reported P. C , or F. * co»- 

*Fe. ^Organic carbon. V_O|« 

*At 1.000°C.

Spectrographic analyses 

[ D = 0. 1-1 percent, E = 0.01-0.1 percent, F =0.001-0.01 percent, G =< 0.001 percent, ND = not detected . Elements looked for but not detected: Co.Ga.As.Nb.Sb.Ta.W.Bi. 

Additional elements looked for but not detected; samples 239-241: Li.Pt.Au; samples 243-247: Sc.Te.Cs.Sm.Tb.Dy .Tm.Yb.Tl; samples 248-252. 255-259: Li.Sc.Rb.In. 

Te,Cs,Pr,Nd,Sm.Eu.Gd.Tb,Dy.Ho,Er.Tm,Lu,Yb,Pt,Au.Tl; sample 260 S Li.Ge.In.Pt.Au.Hg]

Be ____________

B

Na ___________

Mg .

Ti ___________

V

228

___ E

. ___ C

. ___ D

. ___ D

229 239

__ ND

E F 

C E 

__ D

D E 

D D

240 241 243 244 245 246

ND ND ND ND ND ND 

F F F F F F 

D E D D D D 

D D D D E E 

E E E E E E 

E D D D E D

247 248

ND ND 

ND F 

D D 

E D 

E E 

D E

249 250

ND G 

F F 

D D 

D D 

D E 

E E

251 252

G ND 

F ND 

D D 

D D 

E E 

E E

2SS 256

ND G 

F F 

D D 

D D 

E E 

E E

257 258

ND ND 

F ND 

D D 

D D 

E E 

E E

259 260

ND ND 

F F 

D D 

D D 

E E 

E D
ANALYSES OF SAMPLES 245

Spectrographic analyses Continued

Ci____ ______ _

Mn __ _ ___________

Ni _______________

Cu _________________

Zn _________________

Sr _ _

y

Zr _______ _ _ __

Mo _________________

Ag _________________

Cd _________________

Sn

Ba _________________

La _________________

Pb ________ _ _

228

______________ D

______________ F

_____________ . _ E

_______________ F

E

_ _ E

F

E

_______________ E

_ ___ _ E

229

D

C

E

F

E

E

F

E

E

E

239

E

F

E

G

E

F

F

G

ND

ND

E

ND

240

E

F

E

G

E

E

F

G

ND

ND

E

ND

241

E

F

E

G

E

E

F

G

ND

ND

E

ND

243

D

F

E

E

E

E

E

ND

F

E

ND

F

F

E

244

D

F

E

E

E

E

E

F

F

E

ND

F

E

E

245

D

E

F

F

E

D

F

ND

G

E

ND

F

F

ND

246

D

F

F

F

F

D

E

ND

G

F

ND

G

E

ND

247

D

F

E

F

E

E

E

ND

G

F

ND

F

E

ND

248

D

F

E

E

E

D

E

E

F

G

E

ND

E

F

E

249

E

E

E

E

E

D

E

E

F

G

F

F

E

E

F

250

D

F

E

E

D

F

E

F

G

E

F

E

E

251

D

F

E

E

D

F

E

F

G

E

F

E

E

252

D

F

F

E

D

F

E

F

G

E

F

E

F

255

D

E

F

E

D

F

E

F

G

E

F

E

F

256

D

E

F

E

D

F

E

F

G

F

F

E

F

257

D

F

E

F

D

E

E

F

G

F

F

F

E

E

258

D

E

E

F

D

E

E

F

G

F

F

F

E

E

259

D

F

E

F

D

E

E

F

G

F

F

F

E

F

260

E

F

E

G

E

E

 -

E

F

F

ND

ND

ND

__

ND

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

Idaho Continued

222- 227. Caribou County. Permian, Phospboria Formation, Meade Peak Phosphatic 

Shale Member. T. 7 S., R. 44 E. ( O'Malley and others, 1953, p. 2, 

V7-19, 20-23.) Phosphate rock. Trench sample. Index map. detailed 

measured section. 

222, 223. Sec. 28, Kendall Canyon.

222. Sample 1613-PFD. 8.3-8.9 ft from top of member.

223. Sample 1617-DFD, 4.9-6.1 ft from top of member. 

224- 227. Sec. 31, North Dry Valley.

224. Sample 1657-WOM. Phosphate rock, fossiliferous, 

25.1-29.5 ft from top of member.

225. Sample 1682-WOM, 19.0-20.2 ft from top of 

member.

226. Sample 1685-WOM, 17.1-17.8 ft from top of 

member.

227. Sample 1689-WOM, 15.1-15.6 ft from top of

member.

228, 229. County, formation, and member as in samples 222-227. Sees. 2( ?), 

11( ?),T. 8 S., R. 42 E. Aspen Range deposits, Conda mine. 

Collector, A. L. Service. Field Nos. WSA-5, WSA-4. ( Mabie and 

Hess, 1964, p. 2, 3, 5, 7, 8, 9, 12, 13, 58, 82, 83; Service and 

Popoff, 1964, p. 6, 11, 12, 28, £1-33, 63.) Index map, compositional classification triangle. Physical properties, beneficiation tests. 

Possible use: Agricultural, chemical, metallurgical.

230-237. County, formation, and member as in samples 222-227. [Sees. 2, 11, 

T. 8 S., R. 42 E.] Conda mine. ( Emigh. 1958, p. 21, 22, 24-28, 

29, 30, fig. 1.) Mineralogy, thin-section description. Index map. 

230-234. General: When fresh, phosphatic dolomitic shale, black,

fine-grained, dense, hard; when weathered, shale, brown,

soft; fossiliferous; 17-24 ft thick.

230. Sample S13. Phosphate pellets, 4 ft above bottom 

of bed.

231. Sample S14. Phosphate pellets, 8 ft above bottom 

of bed.

232. Sample S3. Phosphate pellets, 8.5 ft above bottom 

of bed.

233. Sample S16. Phosphate pellets, 16 ft above bottom 

of bed.

234. Sample S17. Phosphate pellets, 20 ft above bottom

of bed.

235- 237. General: Phosphate pellets in groundmass of calcite, dolomite, and detrital minerals; fresh rock, black, dense, hard; 

weathered rock, brown, porous, soft; fossiliferous.

235. Sample S7.

236. Sample S10.

237. Sample Sll. 

238. County, formation, and member as in samples 222-227. [Sees. 2, 11,

T. 8 S., R. 42 E.], 8 miles north of town of Soda Springs. Conda mine. 

( Caro, 1949, p. 282,^83; Russell, 1949, p. 279-281.) Phosphate rock, 

averages 7.2 ft thick. Detailed columnar sections. Beneficiation tests. 

Possible use: Fertilizer. 

239-241. County, formation, and member as in samples 222-227. Sec. 13,

T. 8 S., R. 42 E. Conda mine. ( McKelvey and others, 1935b, p. 1, 

2, 4, 25-28, 29, pi. 1.) Mineralogy. Index maps, detailed measured 

section.

239. Sample FCA-73-47. Phosphate rock, fossiliferous. 178.60- 

180.20 ft from top of member.

Id aho Continued

240. Sample FCA-75-47. Phosphate rock, 175.75-177.15 ft from top 

of member.

241. Sample FCA-77-47. Phosphate rock, 171.45-173.25 ft from top

of member.

242. County, formation, member, maps, and sections as in samples 222-227. 

Sec. 1, T. 8 S., R. 43 E., Caldwell Canyon. ( McKelvey and others, 

1953b, p. 2, 4, 11-13, pi. 1.) Phosphate rock, argillaceous, 93.80- 

95.70 ft from top of member. Trench sample. Mineralogy. 

243-247. County, formation, and member as in samples 222-227. SE? sec. 23,

T. 8 S., R. 43 E., Johnson Creek. ( McKelvey and others, 1953a, p. 2, 

32, £3-36.) Trench sample. Index map, detailed measured section.

243. Sample VEM-477-47. Phosphate rock, argillaceous, 28.3-29.0 ft 

from top of member.

244. Sample VEM-479-47. Phosphate rock, argillaceous, fossiliferous, 

26.7-27.3 ft from top of member.

245. Sample VEM-486-47. Phosphate rock, 22.3-2Z.9 ft from top of 

member.

246. Sample VEM-490-47. Phosphate rock, 18.9-19.4 ft from top of 

member.

247. Sample RAW-56-47. Phosphate rock, 14.2-14.8 ft from top of

member. 

248-259. County, formation, and member as in sample* 222-227. NWi NWi

sec. 30, T. 8 S., R. 43 E., Trail Canyon. ( McKelvey and others, 

1953a, p. 2, 21-23, 24-28, 29, 31.) Trench sample. Index map, 

detailed measured section.

248. Sample RAH-183-47. Phosphate rock, 205.01-205.56 ft from top 

of member.

249. Sample WOM-3181. Phosphate rock, 198.91-201.01 ft from top 

of member.

250. Sample VEM-178-47. Phosphate rock, 191.06-191.96 ft from top 

of member.

251. Sample VEM-179-47. Phosphate rock, 189.66-191.06 ft from top 

of member.

252. Sample VEM-180-47. Phosphate rock, 188.66-189.66 ft from top 

of member.

253. Sample LES-247-47. Phosphate rock and phosphatic calcareous 

mudstone, 186.11-186.61 ft from top of member.

254. Sample LES-248-47. Phosphate rock, calcareous, and calcareous 

phosphatic mudstone, 184.66-186.11 ft from top of member.

255. Sample VEM-256-47. Phosphate rock, 19.76-20.36 ft from top 

of member.

256. Sample VEM-259-47. Phosphate rock. 17.36-18.36 ft from top 

of member.

257. Sample VEM-263-47. Phosphate rock, contains phosphatic

limestone concretions, 16.46-17.06 ft from top of member.

258. Sample VEM-264-47. Phosphate rock, 15.66-16.46 ft from top 

of member.

259. Sample VEM-265-47. Phosphate rock, 15.06-15.66 ft from top

of member.

260. County, formation, and member as in samples 222-227. NW^NEi sec. 10, 

T. 8 S.. R. 44 E., Mabie Canyon. Spectrographic analyst, 

D. M. Mortimer. Sample RAW-40-47. ( McKelvey and others, 1953b, 

p. 1. 2, 4. 14-J19. 24, pi. 1.) Phosphate rock, 184.6-186.1 ft from 

top of member. Trench sample. Mineralogy. Index maps, detailed 

measured section. [For other analyses from same measured section see 

sample 114, group B and samples 261-284, this group.]
246 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more Pf>$ (Group P) , special-rock category Continued

Chemical analyses Continued

Idaho Continued . .

A1.0, _

Fe.0,__ _ .

P.O.

F _ _ ___

Ignition loss _ _ _

LessO 1 _ _ __

Total __ _

261

11P15-130

. _ 23.4

4.1

. _ 1.3

23.1

2.16

11.0

__ .91

. _ [64.2]

262

11P15-131

19.8 

2.5 

1.3 

26.2 

2.50 

10.0

62.30 

1.05

[61.2]

263

11P15-132

14.1 

2.5 

.9 

28.7 

2.47 

9.4

58.07 

1.04

[57.0]

264

IIP 15-133

6.8 

1.3 

.8 

32.5 

3.30 

8.8

53.50 

1.40

[52.1]

265 266

11P15-134 11P15-135

15.2 14.7 

2.4 2.2 

1.1 1.0 

27.7 28.6 

2.48 2.86 

10.8 10.3

59.68 59.66 

1.04 1.20

[58.6] [58.5]

267

11P15-136

17.8 

2.8 

1.5 

26.1

11.1

[59.3]

268

IIP 15-138

24.4 

5.1 

1.8 

21.7

14.3

[67.3]

269

11P15-13<J

14.9 

3.3 

1.4 

24.3

17.9

[61.8]

270 271

11P15-140 11P15-141

12.0 24.2 

2.4 4.2 

2.4 1.6 

32.2 21.2

3.3 16.5

[52.3] [67.7]

272

IIP 15-142

18.5 

3.8 

1.2 

23.9

15.5

[62.9]

273

11P15-143

14.0 

2.7 

1.1 

26.8

14.8

[59.4]

Idaho Continued

Acid insoluble ___.

Fe.0, _

CaO_ __ __

H.nV,05 .

Ignition loss _ _ _

LessO_ ___ _

Total ___ 

274

11P15-144

. _ 22.6

4.8

1.7

20.9

18.5

__ [68.5]

275

11P15-145

9.8

2.4 

.8

28.4

14.9

[56.3]

276

HP 15 -146

11.2 

2.3 

.9

25.9

18.7

[59.0]

277

11P15-147

17.8 

3.8 

1.1

23.8

15.8

[62.3]

278 279

11P15-148 11P15-149

14.4 4.5 

3.1 1.6 

1.2 .5

26.5 34.0 

2.83 3.54

11.8 8.0

59.83 52.14 

1 1.19 J 1.49

[58.6] [50.6]

280

11P15-150

11.9 

2.1 

.9

31.5 

3.17

6.6

56.17

[54.8]

281

11P15-151

9.8 

1.8 

.7

32.7 

3.27

5.8

54.07 

h.38

[52.7]

282

11P15-152

5.0 

.8 

.5

37.1 

3.72

3.5

50.62

[49.0]

283 284

11P15-153 11P15-154

3.5 1.8 

.8 .7 

.4 .5

36.7 37.7 

3.90 ______

4.4 3.2

49.70 ______

'1.64 _____

[48.1] [43.9]

285

11P15-155

*5.0 

1.1 

.6 

48.1 

».7 

30.9 

3.37 

.15 

8.5

98.42

[97.0]

286

11P15-156 

r6.9 

1.5 

.8 

46.2 

'.8 

30.0 

3.33 

.16 

7.5

97.19 

1 1.40

[95.8]

Idaho C ootinued

Acid insoluble __ _

A1.0, 

Fe.0, _ _

MgO _____ _

CaO_ _______ .

Na.O ___ _ __

IX (~\

H-O+ __ __ _.

H.O- __ ___ .

P.05 __ __

F _ _ _ _ __

Organic matter _ _.

Oil __________

eU ________ _

Ignition loss _ _ _.

Le«0_ _______

Total ___

287

11P15-157

*6.0

1.2

.6

__ 47.4

.__ '.8

31.8

__ 3.22

.27

__ 7.1

__ 98.39

1 1.36

__ [97.0]

288 289

11P15-158

4 6.0 

1.6 

5 2.8 

.33

45.1

6 2.7

.7

31.6 

3.23

7 2.7

8 .10

'.010 

"2.21

100.59 

1 1.36

 [99.2]

'Calculated from reported F. 

Insoluble. 

3 At ]05°C. 

4 SiO,. 

5 Total iron.

[ D -0.1-1 percent; E =0.01-0.1 percent; F = 0.

B _____

Na

f/.g ___________

Ti

V_ _ _______

Cr ___ _______

Mn ___________

261 262

F F 

D D 

D D 

E E 

D D 

E E 

F F

3.5 

1.47 

2.88

32.J

".008 

6.40

[46.4]

290

11P15-159

22.3 

4.10 

1.35

23.7

".010 

13.50

[65.0]

291 292

11P15-160 11P15-161

18.7 17.6 

3.60 3.35 

1.23 1.78

24.5 24.9

".012 *.012 

15.70 15.00

[63.7] [62.6]

293

IIP 15-162

3.6 

1.34 

.33

37.1

".019 

3.15

[45.5]

6 Total water. 

7 230»-500°C. 

8 Oil by distillation at about 

500* C; distillate weighed.

Spectrographic analyses 

001-0.01 percent; G = < 0.001 percent; ND = not detected. 

Sn,Sb.Ba.Ta,W,Pt,Au.Hg.Pb,Bi]

263 264

F F 

D D 

D D 

E E 

D D 

E E 

F F

265 266

F F

E D 

D D 

E E 

D D 

E E 

F F

267 268 269 270

F F F F 

E D E D 

D D D D 

E E E E 

D E E E 

E D E E 

F F F E

271 272

F F 

D E 

D D 

E E 

D D 

E E 

E E

294

IIP 15 -163

12.7 

1.84 

.80

32.5

".016 

2.80

[50.7]

295

11P15-164

17.5 

2.98 

1.05

29.6

".010 

4.50

[55.6]

296 297

IIP 15-165

4 4.3 3.2 

.70 .85 

5 .36 .33 

.11

49.5 __ _

.22 ______

.18 _ ___

.8 _____

.11 __ _

35.6 36.0 

3.53 ______

T 2.7 ______

'.10 __ __

'.010 ".014 

"l.26 5.55

101.58 _ _ _

'1.49 _ _

[100.1] [45.9]

298

IIP 15- 166

18.2 

3.5 

1.66

24.1

14.66

[62.1]

'Radiometric determination, 

B.A. McCall. 

* Uranium ( Montgomery and 

Cheney. 1967, p, 48, 49, 51). 

"CO,.

Elements looked for but not detected: Li.Be ,Co,Ga,Ge,As

273 274

F F 

E E 

D D 

E E 

D D 

E E 

E E

275 276

F F 

E E 

D D 

E E 

D D 

E E 

E E

277 278 279 280

F F F F 

E E E E 

D D D D 

E E E E 

D D D D 

E E E E 

E F F E

281 282

F F

E E 

D D 

E E 

D E 

E E 

E F

299

IIP 15- 167

2.3 

.85 

.45

36.6

5.13

[45.3]

.Nb.Cd.In.

283 284

F F

E D 

D D 

E E 

E E 

E E 

F E
ANALYSES OF SAMPLES 247

Spectiographic analyses-continued

Ni ____________

Cu ____________

Zn ____________

Sr ____________

Zr ____________

Mo _ ________

Ag 

261

_________ E

_________ G

_________ E

_________ E

_________ E

, _____ _ _ F

_________ F

262

E

G

E

E

E

F

F

263 264

E E

G G

E E

E E

E E

F F

F G

265 266

E E

G G

E E

E E

E E

F F

G F

267 268 269

G G G

E E E

E E E

E F F

G G G

270 271 272

G G G

ND E E

D E D

E E E

F F F

G F F

273 274 275

E E E

G G G

E E E

ODD

E E E

F F F

F F F

276 277 278

E E E

G G G

E E E

DDE

E E E

F F F

F F F

279 280

E E

G G

E E

E E

E E

F F

G G

281 282

E E

G G

E E

E E

E E

F F

G G

283 284

E E

G G

E E

E F

E E

F F

G G

Spectiogiaphic analyses of samples 288,296

Be_ ___

B _____

Sc ____

V ___

Cr ____

288

___ 0.0001

.__ <.005

_ _ <.0005

__ .03

__ .1

296

< 0.00005 Mn ___

<,005 Ni ___

<.0005 Co ____

.1 Cu ___ .

.3 Zn ___ .

288

__ 0.003

.03

__ <.001

.003

.03

296

0.001

.01

<.001

.01

.03

Ga ___ .

As ____

Se _____

Sr ___ .

Y_____

288

._ 0.001

.0005

.1

.03

296

<0.001 Zr ____

.002 Mo ____

.0005 Ag _____

.1 Cd ____

.01 Sb ____

288

0.003

.003

.0003

.01

.0005

296

0.001 Ba ___

<.0005 La ___

.001 Nd __

.03 Yb __

.0004 Pb __

288

__ 0.01

.01

__ <.006

.0003

-_ <.001

296

0.01

.01

<.006

.0003

<.001

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

261-284. Caribou County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. NW^NEj sec. 10, T. 8 S., R. 44 E., Mabie Canyon. 

Spectrographic analyst, D. M. Mortimer. ( McKelvey and others, 1953b, 

p. 1, 2, 4, 14, 15, 16, 17-19. 24. pi. 1.) Phosphate rock; sample 274. 

phosphate rock and mudstone. Mineralogy. Trench sample. Index 

maps, detailed measured section. [For other analyses from same 

measured section see sample 114, group B and sample 260, this group.]

261. RAW-43-47

262. RAW-44-47

263. RAW-46-47

264. RAW-47-47

265. RAW-58-47

266. RAW-60-47

267. VEM-317-47

268. RMC-99-47

269. VEM-362-47

270. VEM-372-47

271. VEM-421-47

272. VEM-423-47

273. VEM-424-47

274. VEM-426-47

275. VEM-427-47

276. VEM-428-47

277. VEM-429-47

278. VEM-431-47

279. VEM-432-47

280. VEM-438-47

281. VEM-440-47

282. VEM-444-47

283. VEM-445-47

284. VEM-446-47

Ft from top of member

181.2-182.9

179.2-181.2

177.1-179.2

176.2-177.1

172.3-173.7

170.7-171.5

161.7-162.9

149.4-150.0

116.2-116.9

107.3-108.3

47.4- 48.4

45.8- 46.5

45.1- 45.8

43.5- 43.9

42.2- 43.5

41.2- 42.2

39.4- 41.2

38.5- 39.4

37.1- 38.5

33.7- 34.3

31.9- 32.7

27.8- 28.5

27.3- 27.8

26.8- 27.3

285-287. County, formation, and member as in samples 261-284. [T. 8 S.,

R. 44 E.], north of Georgetown, near Slug Creek, Deer Creek-Wells 

Canyon area. ( Deiss, 1949, p. 62, 64. 83, 85, 92. 94, pi. 5.)

General: Phosphate rock, black, blackish-brown, dark-brown-gray. 

Mineralogy. Tonnage estimated. Index and geologic maps, geologic 

sections. Possible use: Fertilizer.

285. Trench K, sample 4. Phosphate rock, 1 ft 5 in. thick.

286. Trench K, sample 2. Phosphate rock, 1 ft 6 in. thick.

287. Trench J, sample 2. phosphate rock, 2 ft 2 in. thick.

288-297. County, formation, and member as in samples 261-284. Si sec. 21,

T. 8 S., R. 45 E.. Timber Creek. ( Sheldon and others, 1953. p. 2, 5, 

6-61 Montgomery and Cheney, 1967, p. 2, 39, 40, 48, 49, 51, pis. 2, 

3.) Trench sample. Tonnage estimated. Index and geologic maps, 

geologic sections, correlated columnar sections, detailed measured 

section.

288,289. Sample 5704-MAW. Phosphate rock. 189.1-191.0 ft from 

top of member. General mineralogy.

288. ( Gulbrandsen, 1966. p. 770-773, table 1.)

290. Sample 4437-RAS. Phosphate rock, argillaceous, 50.1-52.4 

ft from top of member.

291. Sample 4438-RAS. Phosphate rock, argillaceous, 48.9- 

50.1 ft from top of member.

292. Sample 4439-RAS. Phosphate rock, argUlaceous, 47.0-48.9 

ft from top of member.

293. Sample 4443-RAS. Phosphate rock, 39.7-40.6 ft from top 

of member.

294. Sample 5208-RGW. Phosphate rock, 33.5-35.4 ft from top of 

member.

295. Sample 4452-RGW. Phosphate rock, 28.7-29.9 ft from top of 

member.

296, 297. Sample 4453-RGW. Phosphate rock, 27.4-28.7 ft from top of 

member. General mineralogy.

296. (Gulbrandsen, 1966. p. 770-773, table 1.)

298, 299. County, formation, and member as in samples 261-284. SEt SE* sec. 31, 

T. 8 S., R. 45 E., South Stewart Canyon. ( Sheldon and others. 1953, 

p. 2, 9, ^0-13.) Trench sample. Index map, detailed measured 

section.

298. Sample 4125-JDW. Phosphate rock, argillaceous, 46.20-51.20 

ft from top of member.

299. Sample 4127-JDW. Phosphate rock, 40.10-42.20 ft from top of 

member.
248 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more P^Og (Group P) , special-rock category Continued

Chemical analyses Continued

Idaho Continued

300 301 302 303 304 305

11P15-168 11P15-169 11P15-170 11P15-171 11P15-234

Acid insoluble _ _

A1.0, .

Fe,0, _.

TiO, .

P,06 .

SO, _________

eU __ ______

Ignition loss _ _

Total ___

20.7 9.1 8.6 4.0 *4.6

4.3 1.5 1.3 .76 1.0

._ _ 1.80 .67 .72 .47 '.42

. ___ _____ ____ _____ _____ .16

___ _____ _____ _____ _____ 48.5

_ _ .12

. _ _ 26.9 33.2 34.4 36.9 34.0

_____ ____ _____ _____ 3.38

__ _____ _____ _____ ____ «.10

____ ___ __ _ *.009

5.75 5.12 2.88 2.55 *2.03

'l 42

___ [59.4] [49.6] [47.9] [44.7] [102.2]

1.5 

.94 

.40

35.6

7 .006 

6.20

[44.6]

306

11P15-235

23.4 

4.8 

2.26

24.6

'.004 

6.80

[61.9]

307 308

11P15-236 11P15-237

13.0 22.0 

2.3 3.9 

1.11 1.63

31.6 26.3

7 .014 7 .014 

5.76 6.30

[53.8] [60.1]

309 310 311

11P15-238 11P15-239 11P15-240

22.5 22.2 16.1 

5.6 4.0 3.4 

2.16 1.34 1.24

24.3 22.6 25.8

7 .003 7 .008 7 .009 

8.74 14.36 13.56

[63.3] [64.5] [60.1]

312

11P15-241

8.7 

2.3 

1.11.

33.5

7 .014 

3.92

[49.5]

Idaho Continued

A1.0, ________

Fe-0, ________

MgO _________

CaO ___ _____

Na,0 __ _

K,0 

H,0+ __ _____

H.O- ________

TiO, ,

P,06 .

F ___________

V

Organic matter _

Oil __________

eU_ ________

Subtotal _

Less O ____ _

Total ___

313 314 315 316 317

11P15-242 11P15-243 11P15-244 11P15-245 11P15-246

1.2 6.0 8.0 6.4 9.6

___ .77 1.1 1.4 .78 1.5

.44 .72 .38 .23 .59

38.5 35.8 34.6 36.2 34.1

 7 .016 T .017 7 .013 7 .018 7 .812

2.70 2.76 4.26 3.08 3.22

. _[43.6] [46.4] [48.6] [46.7] [49.0]

318

11P15-247

13.4 

2.5 

1.07

31.7

3.36

[52.0]

319

11P15-248

18.0 

3.2 

1.32

29.6

7 .010 

3.56

[55.7]

320 321

11P15-249

'7.7 4.9 

1.2 1.2 

'.52 .50

.10 ______

49.5 ______

.23 ______

.21 ______

.1 ______

.09 __ _

35.3 36.5

.38 ______

3.55 __

4 1.0 ______

s.10 ______

'.Oil 7 .011 

*1.15 2.56

102.44 ______

'1.49 ______

[101.0] [45.7]

322 323 324

11P15-260 11P15-251 11P15-252

2.8 2.8 21.1 

1.5 1.2 2.8 

.67 .82 1.24

35.7 36.9 27.8

T .011 T .010 '.010 

5.96 4.08 4.08

[46.6] [45.8] '[57.0]

325

11P15-172

21.0 

3.4 

1.61

24.0

.08

7 .008 

13.62

[63.7]

Idaho Continued

A1.0, _ .

Fe,0, .

MgO .

CaO ______ _

Na,O ___ ____

K,0 ___ _ ___

H,0+ __ _ ___

H.O- ________

TiO, ________

P,0, .

F

V ___________

Organic matter _

Oil __________

eU _____ __

Ignition loss _ _

Subtotal _

Less O ________

Total ___

326 327 328 329 330

11P15-173 11P15-174 11P15-175 11P15-176 11P15-177

__ 16.5 15.8 4.5 5.8 4.7

__ 27.0 26.5 35.4 35.3 35.9

_ _ '.Oil '.017 '.018 '.017 7 .022

___ 9.94 13.86 5.42 7.22 3.80

. ___ [58.2] [61.1] [47.2] [50.4] [46.1]

331

11P15-178

9.0 

1.3 

.56

34.6

.04

'.013 

2.44

[48.0]

332

11P15-179

13.5 

1.2 

.63

33.2

.04

'.Oil 

2.12

[50.7]

333 334

11P15-180 11P.15-181

4.4 2.3 

1.4 .44 

.67 .16

34.6 37.8

.08 .06

'.Oil 7 .010 

7.04 3.60

[48.2] [44.4]

335 336 337

11P15-182 11P15-183

*17.9 18.1 23.2 

2.6 3.1 2.8 

*.86 1.2 1.7 

.16 _____ ___ _

45.1 _____ ____

72

.53 _____ ______

»3.4 _____ ______

.9 _ _

.10 _____ ______

31.4 26.5 25.1

2.40 _____ ______

<3.2 ___ ______

s.20 _____ ______

 .006 ____ ______

8 1.48 8.10 7.90

110.96 _____ ______

'l.Ol _____ ______

[110.0] [57.0] [60.7]

338

11P15-184

19.7 

2.7 

1.1

27.6

6.76

[57.9]
ANALYSES OF SAMPLES 249

Spectrographic analyses

[ Elements looked lot but not detected: U.Ge.Rb.Nb.Ru.Rh.Pb.In.Sn.Te.Cs.Ce.Pr.Sm.Eu.Gd.Tb.Dy .Ho.Er.Tm.Lu.Hf .Ta.W .Re.Os.Ir.Pt.Au.Hg.Tl.Bi.Th. Th determined

chemically in sample 304]

Be ___

Sc ___

V _____

Cr ____

Mn __

Ni ___

Co ___

Cu __

304

________ <0. 00005

________ <.005

<.0005

________ .03

.1

_______ <.001

________ .01

______ < .001

________ .01

320

< 0.00005

<.005

<.0005

.03

.1

.03

.01

< .001

.003

335

< 0.00005

.01

.001

.1

.1

.003

.03

< .001

.01

Zn__

Ga_.

As _.

Se _.

Sr _.

Y___

Zr __

Mo _

304

__________ 0.03

__________ <.001

__________ .002

__________ .001

__________ .03

__________ .01

__________ .003

__________ <.0005

320

0.03

<.001

.001

.002

.1

.03

.003

<.0005

335

0.03

<.001

.002

.001

.1

.03

.01

.01

Ag _________

Cd _________

Sb ______

Ba _________

La _________

Nd _________

Yb _____ __

Pb _________

304

____ 0.0003

____ .01

___ .0003

___ .01

___ .01

___ <.006

___ .0003

___ < .001

320

0.0003

.01

.0003

.01

.01

<.006

.001

<.001

335

0.0003

.01

.0004

.01

.01

<.006

.001

<.001

[B = 1-10 percent; D = 0.1-1 percent; E = 0.01-0.1 percent; F = 0.001-0.01 percent; G =<0.001 percent; ND= not detected. Elements looked for but not detected; Li.Co,Ge.As.

Rb.Ru,Rh,Pd.Cd.In.Sb.Te.Cs.Ce,Pr.Nd,Sm,Eu,Gd.Tb.Dy.Er,Lu.Hf,Ta,W.Re.Os.Ir.Pt.Au.Hg.Tl.Bi.Th.

Be _______

B _______

Na ______

Mg ______

K _______

Sc _______

Ti ____ .

Cr ___ _.

Mn _____ .

Ni _____ .

Cu

Zn ___ _.

Ga _____ .

325

_____ ND

_____ F

_____ B

______ D

_ B

F

. ____ E

. ____ D

. ____ F

. ____ D

E

. ____ E

. ____ F

326

ND

F

B

D

B

F

E

D

F

D

E

E

F

327

ND

F

B

r>

B

F

F

r>

F

D

F.

F

F

328

G

F

B

D

D

F

E

D

F

E

F.

E

F

329

ND

F

B

D

D

F

E

E

F

F.

F.

E

F

330

ND

F

B

F.

B

F

F.

F.

F

E

F.

E

F

331

ND

F

B

F.

B

F

E

F.

F

F.

F.

E

F

332

ND

F

B

E

D

F

F.

E

F

E

E

E

F

333

ND

F

B

D

B

F

F.

D

F.

E

E

F.

F

334

ND

F

B

F.

n

F

F

F

F

F

E

F.

F

Sr_ ______________

Y

Zr _______________

Mb _ ____________

Mo _____ ________

Ag _______________

Sn _______________

Ba _______________

La ______ , ________

Ho _______________

Tm ______________

Yb ___ __________

Pb _______________

325

____ F

____ E

____ E

____ E

____ F

____ G

F

____ E

____ F

____ F

____ E

____ G

____ F

326

F

E

F.

E

F

G

F

E

F

F

D

G

F

327

F

E

F.

F.

F

G

F

F.

E

F

D

G

F

328

F

F.

E

ND

F

G

F

F.

F

F

E

G

F

329

F

F.

E

ND

F

G

F

F.

F

F

E

G

F

330

F

E

F.

F.

F

G

F

E

E

F

F.

G

F

331

F

E

F.

F.

F

G

F

F.

E

F

E

G

E

332

F

E

E

E

F

G

F

F.

E

F

E

G

F

333

F

E

F.

F.

F

G

F

E

E

F

E

F

334

F

E

F

F.

F

G

F

E

E

F

E

F

Footnotes of analyses on preceding page:

'Total iron. 

'Total water. 

4 230°-500°C.

5 Oil by distillation at about 

500"C. distillate weighed.

'Radiometric determination 

by B.A. McCall.

7 Uranium (Montgomery and 

Cheney, 1967. p. 52-56). 

! COj. 

'Calculated from repotted F.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

300-303. Caribou County. Permian, Phosphoria Formation. Meade Peak Phosphatic 

Shale Member. SEjSE? sec. 31, T. 8 S.. R. 45 E., South Stewart 

Canyon. ( Sheldon and others, 1953, p. 2, j), ^0-13.) Phosphate rock. 

Trench sample. Index map, detailed measured section.

300. Sample 4128-JDW, 39.45-40.10 ft from top of member.

301. Sample 4129-JDW, 38.55-39.45 ft from top of member.

302. Sample 4137-JDW, 31.3-32.1 ft from top of member.

303. Sample 4173-MET, 27.3-28.3 ft from top of member.

304-324. County, formation, and member as in samples 300-303. SE4 sec. 33,

T. 8 S., R. 45 E., Lone Pine Spring. ( Sheldon and others, 1953, p. 2, 

20-23; Montgomery and Ch,eney. 1967, p. 2, 39, 40, 52-55, pis. 2, 3.) 

Phosphate rock. Sample 309, phosphatic mudstone and phosphate rock. 

Trench sample. Tonnage estimated. Index and geologic maps, geologic 

sections, correlated columnar sections.

304, 305. Sample 4520-RGW, 167.8-169.8 ft from top of member. 

	General mineralogy. 

	304. ( Gulbrandsen, 1966, p. 770, 771, table 1.)

306. Sample 4519-RGW, 166.9-167.8 ft from top of member.

307. Sample 5105-RAS, 155.7-157.7 ft from top of member.

308. Sample 5078-RPS, 143.0-144.0 ft from top of member.

309. Sample 5075-RPS, 137.0-140.5 ft from top of member.

310. Sample 5026-RAS, 40.2-42.4 ft from top of member.

311. Sample 5025-RAS, 38.2-40.2 ft from top of member.

312. Sample 5022-RAS, 34.0-35.5 ft from top of member.

313. Sample 5021-RAS, 33.1-34.0 ft from top of member.

314. Sample 5090-MAW, 29.6-30.8 ft from top of member.

315. Sample 5088-MAW. 28.5-29.1 ft from top of member.

316. Sample 5086-MAW, 26.6-27.8 ft from top of member.

317. Sample 5084-MAW, 25.0-26.0 ft from top of member.

318. Sample 5083-MAW, 24.1-25.0 ft from top of member.

319. Sample 5081-MAW, 23.0-23.7 ft from top of member.

320, 321. Sample 5018-MAW, 20.5-21.5 ft from top of member. 

General mineralogy. 

320. (Gulbrandsen, 1966, p. 770, 771, table I.)

322. Sample 5017-MAW, 19.6-20.5 ft from top of member.

323. Sample 5016-MAW, 18.1-19.6 ft from top of member.

324. Sample 5014-MAW, 14.9-15.9 ft from top of member.

325-334. County, formation, member, maps, and sections as in samples 304-324. 

SWi sec. 31, T. 8 S., R. 46 E., Pole Canyon. ( Sheldon and others, 

1953. p. 2, 14-17; Montgomery and Cheuey, 1967, p. 2, 39, 40, 56, 

59, pis. 2, 3.) Phosphate rock. Trench sample. Tonnage estimated.

31.9 ft from top of member. 

29.3 ft from top of member. 

25.9 ft from top of member. 

24.7 ft from top of member. 

22.8 ft from top of member. 

19.8 ft from top of member. 

18.8 ft from top of member. 

14.6 ft from top of member. 

13.3 ft from top of member. 

12.4 ft from top of member.

335-338. County, formation, and member as in samples 300-303. NEjSWi sec. 29, 

T. 9 S., R. 43 E., Swan Lake Gulch. ( McKelvey and others, 1953b, 

p. 2, 4, 42-44, 45, pi. 1.) Phosphate rock. Mineralogy. Trench 

sample. Index maps, detailed measured section.

335, 336. Sample WOM-2890, 157.6-159.0 ft from top of member. 

335. (Gulbrandsen, 1966, p. 770, 771, table 1.)

337. Sample WOM-2933. Phosphate rock, argillaceous, 

fossiliferous; 151.1-152.1 ft from top of member.

338. Sample WOM-2937. Phosphate rock, 147.2-148.5 ft from 

top of member.

325.

326.

327.

328.

329.

330.

331.

332.

333.

334.

Sample 4416-RAS,

Sample 4417-RAS,

Sample 4419-RAS,

Sample 4420-RAS,

Sample 4421-RAS.

Sample 4423-RAS,

Sample 4424-RAS,

Sample 4427-RAS,

Sample 4428-RAS,

Sample 4429- RAS,

29

27

24

22

21

18

16

13

12

11

.3-

.9-

.7-

.8-

.1-

.8-

.8-

.3-

.4-

.9-
250 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho ofjphospjiatejpck or nodules containing 21.1 percent or more Pf>t (Group P) . special-rock category Continued

Chemical analyses Continued

Idaho Continued

Al,0, .

CaO ____ ___ .

Na,0 ______ .

KjO __________

H,0+ _______ .

H.O- .

PjO, _ _______

SO, __ 

F_

eU ________ .

Ignition loss_. _.

Less O _ _____ .

Total ____.

339

11P15-185

21 7

___ 2.1

___ .80

___ 25.6

. __ 8.74

[58.9]

340 341 342

11P15-186 11P15-187

2.1 

'.84

41.2

.32 

.34

*3.0 

1.2

24.8 

1.12

4 4.6

S .15

'.006

T 7.25

104.14

'.82

[103.3]

13.2 22.9 

_____ 4.5

_____ 1.27

25.2 25.4

_____ 6.46

[38.4] [60.5]

343

11P15-188

6.4 

1.0 

.54

33.2

6.02

50.00

[48.9]

344

11P15-189

22.2 

4.1 

1.25

26.9

5.70

[60.2]

345

11P15-190

19.2 

2.9 

1.07

29.1

6.54

[58.8]

346

11P15-191

18.8 

2.5 

1.02

28.6

6.12

[57.0]

347

11P15-192

16.1

3.4 

1.48

26. 8

13.88

[60.7]

348 349

11P15-193 11P15-194

24.5 24.7 

5.0 5.3 

1.89 2.28

22.2 23.4

12.86 9.34

[66.4] [65.0]

350

IIP 15- 195

11.5 

2.3 

.84

31.6

5.72

[52.0]

351

11P15-196

11.2

2.2 

.88

31.1

12.48

[57.9]

Idaho Continued

Acid insoluble ___

AljO, .

FejOj _______ _ .

P.O.

F

Subtotal _ .

LessO ________

Total ___ .

352

IIP 15- 197

8.0

____ 1.4

_ __ .58

5

1 A

 [49.0]

353

11P15-198

20.5 

3.8 

1.32 

27.1

5.92

[58.6]

354 355

11P15-199 11P15-200

20.0 15.7 

3.7 2.6 

1.27 1.02 

27.6 30.4

5.52 4.06

[58.1] [53.8]

356

11P15-201

14.6 

2.7 

.98 

30.9

4.16

[53.3]

357

11P15-202

22.6 

4.5 

1.48 

26.4

5.56

[60.5]

358

11P15-203

13.1 

2.3 

1.05 

32.0

2.90

[51.4]

359

11P15-204

12.9 

2.2 

1.10 

32.5

2.84

[51.5]

360

11P15-205

5.0 

1.4 

.51 

35.9

3.14

[46.0]

361 362

11P15-206 11P15-207

7.9 9.4 

.87 2.8 

.39 .91 

34.9 32.1 

3.37 _____

2.04 6.50

49.47 ______

'1.42 ______

[48.0] [51.7]

363

11P15-208

14.5

2.5 

1.13 

30.1

5.84

[54.1]

364

11P15-209

24.8 

5.5 

1.28 

25.1

7.14

[63.8]

Idaho Continued

Acid insoluble __

Al,0, .

Fe.,0, .

PjOj 

Ignition loss _ _ .

Total ___ .

365

IIP 15-210

___ 17.6

6.7

___ .70

no e

. 7.26

 [60.8]

366

11P15-211

24.4 

3.6 

1.26 

26.7 

6.34

[62.3]

367 368

11P15-212 11P15-213

17.0 23.7 

2.7 3.6 

1.12 1.42 

29.2 27.2 

6.34 4.78

[56.4] [60.7]

369

11P15-214

17.6 

2.8 

.83 

29.5 

4.64

[55.4]

370

11P15-215

16.2 

1.6 

1.28 

30.8 

3.94

[53.8]

371

11P15-216

10.6 

2.7 

1.2 

33.5 

3.02

[51.0]

372

11P15-217

12.1 

2.4 

1.66 

31.6

5.02

[52.8]

373

IIP 15-218

20.9 

4.4 

2.60 

27.6 

4.18

[59.7]

374 375

11P15-219 11P15-220

6.7 19.4 

2.0 5.2 

1.13 1.75 

35.3 28.1 

2.20 3.94

[47.3] [58.4]

376

11P15-221

21.5 

4.4 

1.58 

23.1 

13.1

[63.7]

377

11P15-222

25.0 

5.2 

1.68 

21.4 

13.8

[67.1]

Idaho Continued

AljO, _ _.

FejO, .

CaO ____ ___ .

P,0, _________

F _____ ___ .

V20, _________

Ignition loss _ _ .

Subtotal _ .

LessO __ ___ .

Total ___ .

'siO,. 

'Total iron. 

'Total water.

4 230°-500°C.

378

11P15-223

10.4

1.9

.68

on o

. 5.88

___ [51.2]

379

11P15-224 

10.0 

1.5 

.52

33.1

4.70

[49.8]

380 381

11P15-225 11P15-226

10.6 9.0 

1.3 1.5 

.59 .70

32.8 33.8

4.98 4.24

[50.3] [49.2]

382

11P15-227

8.7 

2.2 

.33

33.3

5.30

[49.8]

s Oil by distillation at about 

500*C, distillate weighed. 

'Radiometric determination, 

by B.A. McCall.

383

11P15-228

11.4 

1.8 

.40

32.3

4.98

[50.9]

384

11P15-229

13.6 

1.4 

.68

31.4

9.34

[56.4]

385

11P15-230

10.2 

1.6

.70

31.3

8.04

[51.8]

386

11P15-231

10.3 

.93 

.46

32.3

6.02

[50.0]

7 CO,. 

'Calculated from reported F. 

' Insoluble.

387 388

11P15-232 11P15-233

22.8 7.1 

3.4 1.60 

1.61 .94

27.2 34.2

5.98 4.26

[61.0] [48.1]

389

IIP 15-258

0.9 

.4 

47.6 

33.1 

3.59 

.33 

16 6. 8

92.72 

'1.51

[91.2]

390

11P15-253

9 3. 40 

.7 

.3 

50.2 

35.6 

2.88 

.06 

»4.8

97.94 

'1.21

[96.7]

"ignition loss an approximate measure of 

organic matter content if rock does not contain carbonates (Lowell, 1952, p. 45) .
ANALYSES OF SAMPLES 251

Spectrographic analysis 

[Elements looked for but not detected: Li.Ge,Rb,Nb,Ru.Rh,Pd.In,Sn,Te,Cs.Ce.Pt.Sm.Eu.Gd.Tb.Dy.Ho.Ei,Tm.Lu,Hf.Ta,W.Re,Os.Ir.Pt,Au,Hg,Tl.Bi.Th]

a ____ _

c«

Cr ________

340

_____ <.005

_____ .03

_____ .1

Ni ________

Co ________

Cu ________

Zn ________

340

_____ 0.003

_____ .03

_____ <.001

_____ .01

_____ .03

Ga_

As ________

Se___ __

Si _______ .

Y _______ .

340

_____ <0.001

_____ <.001

_____ .0007

_____ .03

_____ .01

Zr_ __

Mo _______

Ag _______

Cd _______

Sb _______

340

_ 0.003

_____ .01

_____ .001

_____ .03

_____ .0007

Ba _______ .

La _ _ __ __.

Nd _______

Yb _______

Pb ______ .

340

_____ 0.01

_____ <.003

_____ <.006

_____ .0003

_____ <.001

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued

339-341. Caribou County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. NEiSWi sec. 29, T. 9 S., R. 43 E., Swan Lake 

Gulch. ( McKelvey and others, 1953b. p. 2, 4, 42, 43, 44, 45, pi. 1.) 

Mineralogy. Trench sample. Index maps, detailed measured section.

339. Sample WOM-2940. Phosphate rock, argillaceous, 142.6- 

145.5 ft from top of member.

340, 341. Sample WOM-2998. Phosphate rock, calcareous, 24.4- 

25.2 ft from top of member.

340. ( Gulbrandsen, 1966, p. 770-773, table I.)

342-361. County, formation, and member as in samples 339-341. NWiSEi sec. 14, 

T. 9 S., R. 44 E., Dry Valley. ( McKelvey and others, 1953a, p. 2, 

38, &>, 43.) Phosphate rock. Samples 353, 354, 357, phosphate rock 

and phosphatic mudstone. Trench sample. Index map, detailed 

measured section.

342. VEM-523-47

343. VEM-528-47

344. VEM-532-47

345. VEM-534-47

346. VEM-535-47

347. RMC-127-47

348. RMC-128-47

349. RMC-131-47

350. RMC-132-47

351. VEM-603-47

352. VEM-604-47

353. VEM-605-47

354. VEM-608-47

355. RMC-94-47

356. RMC-95-47

357. RMC-96-47

358. RAG-112-47

359. RAG-114-47

360. RAG-119-47

361. RAG-121-47

Ft from top of member

192.67-193.67

186.37-187.97

181.97-182.67

179.57-181.47

177.87-179.57

43.27- 44.07

42.47- 43.27

40.27- 40.97

39.77- 40.27

37.27- 38.07

36.67- 37.27

36.07- 36.67

32.87- 33.57

30.67- 31.17

29.97- 30.67

29.47- 29.97

27.08- 27.88

25.35- 25.95

21.71- 22.13

20.94- 21.46

362-383. County, formation, and member as in samples 339-341. NEiSEi sec. 19, 

T. 9 S., R. 44 E., West Dairy. ( McKelvey and others, 1953a, p. 2, 

44,45,48,49.) Phosphate rock. Trench sample. Index map, 

detailed measured section.

362. RAG-83-47

363. RAG-84-47

Ft from top of member

174.64-175.84 

173.98-174.64

Idaho Continued

364.

365.

366.

367.

368.

369.

370.

371.

372.

373.

374.

375.

376.

377.

378.

379.

380.

381.

382.

383.

Sample

RAG- 87-47

RAG- 90-47

FCA- 246-47

FCA- 247-47

FCA- 249-47

RMC- 61-47

LES-421-47

LES-423-47

LES-424-47

VEM- 275-47

VEM-276-47

VEM- 278-47

RAG- 129-47

RAG- 130-47

VEM- 294-47

VEM- 295-47

VEM- 296-47

VEM- 304-47

RAW- 11-47

RAW-9-47

Ft from top of member

171

167

166

165

163

161

151

149

148

147

147

145

37

36

33

32

32

26

20

.36-172.86

.53-169.28

.48-167.53

.23-166.48

.03-163.93

.88-162.63

.08-152.23

.28-150.08

.78-149.28

.73-148.03

.23-147.73

.73-146.53

.10- 38.60

.00- 37.10

.20- 34.20

.60- 33.20

.20- 32.60

.20- 26.50

.70- 21.20

19.30- 19.80

384-388. County, formation, and member as in samples 339-341. NE? NE? sec. 20, 

T. 9 S., R. 44 E., north Dairy area. ( McKelvey and others, 1953b, 

p. 2, 4, 39, 40, 41, pi. 1.) Mineralogy. Tonnage estimated. Index 

maps.

384. Sample RMC-25-47. Phosphate rock and argillaceous phosphate 

rock, 0.8 ft thick.

385. Sample RMC-27-47. Phosphate rock and argillaceous phosphate 

rock, 0.43 ft thick.

386. Sample RMC-29-47. Phosphate rock, 0.4 ft thick.

387. Sample RMC-48-47. Phosphate rock and mudstone, 0.9 ft thick.

388. Sample RMC-50-47. Phosphate rock, 1.3 ft thick.

389, 390. County, formation, and member as in samples 339-341. si NE? sec. 32, 

T. 9 S., R. 45 E., 15 miles by road northeast of Georgetown, Deer 

Creek-Wells Canyon area. ( Deiss, 1949, p. 61, 62, 64, 83. 85. ji7, 

ji8, 94, pis. 5, 6; Lowell, 1952, p. 2, 12, 13, 15, 16, 19, 21-27, 36, 

46, 47, pis. 1-3.) Phosphate rock, black, blackish-brown, dark-browngray. Mineralogy. Tonnage estimated. Index and geologic maps, 

geologic sections, correlated columnar sections. Photomicrographs. Use: 

Source of elemental phosphorus. Possible use: Fertilizer, source of 

fluorine and vanadium.

389. Trench C, sample 1.

390. Trench A, sample 7.
252 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more PjOg (Group P) , special-rock category Continued

Chemical analyses Continued

Al,0, ________

Fe,0, ________

CaO _________

H,0- ________

PjO, .

F_

v.o.

Ignition loss* _ _.

Subtotal _ .

LessO* ______ .

Total ____

A1,Q, ________

Fe,0, ________

CaO _______

tj /~v-^

P,0, .

F

V,0, .

Ignition loss*_ _ .

Subtotal _ .

LessO* _______

Total _ _

AI,O, ________

Fe,0, ________

P,0, .

V,0| _ .

Ignition loss _ _

Subtotal 

LessO 1 _______

Total ____

Al,0, ________

Fe,0, _

P,O, _______ .

Ignition loss _ _

Total ___

Acid insoluble __

Al,0, __ _

FejO, _ ______

MgO __ _ ___

CaO _________

P,05 _.

s ___________

V __________

Organic carbon _

Ignition loss _ _ 

Total ___.

391

11P15-264

0.8

.7

___ 48.8

 3.55

.08

7.0

. _ 94.83

1.49

_ _ [93.3]

404

11P15-269

2.5

1.2

34.2

1.8

24.2

2.61

.03

___ 11.4

 1.10

[99.6]

417

11P15-296

__ 6.2

1.3

 7

32.2

3.35

on

'7.7

98.97 

___ 1.41

___ [97.6]

430

11P15-284

16.8

. ___ 4.72

1.39

25.8

___ 12.76

____ [61.5]

443

1JP45-9

12.6

2.8

1.04

.___ 13.42 

. [57.8]

392

11P15-255

1.3 

.4 

46.3

32.6 

3.53 

.08 

9.3

93.51 

1.49

[92.0]

405

11P15-270

18.7 

1.9 

1.7 

39.6 

.7 

28.0 

3.10 

.01 

5.9

99.61 

1.30

[98.3]

418

11P15-297

7.6 

1.1 

.7 

47.6 

.9 

28.3 

2.86 

.12 

*10.6

99.78 

1.20

[98.6]

431

11P15-285

15.4 

3.88 

1.20 

26.5 

11.88

[58.9]

444

11P45-10

3.1 

.9 

.36

36.0

6.48 

[46.8]

393

11P15-256

0.9 

.4 

47.1

33.1 

3.55 

.07 

8.6

93.72 

1.49

[92.2]

406

11P15-271

12.5 

2.4 

1.0 

37.0 

3.1 

25.4 

2.53 

.36 

16.8

101.09 

1.06

[100.0]

419

11P15-298

1.3 

.5 

47.8

34.3 

3.59 

.12 

'6.7

94.31 

1.51

[92.8]

432

11P15-286

12.9 

3.10 

1.40 

28.5 

10.72

[56.6]

445

11P45-11

5.0 

1.2 

.48

35.5

5.26

[47.4]

394

11P15-257

0.6 

.5 

50.1

34.0 

3.71 

.05 

4.5

93.46 

1.56

[91.9]

407

11P15-272

11.1 

2.5 

.9 

38.3 

3.1 

20.1 

1.90 

.44 

21.1

99.44 

.80

[98.6]

420

11P15-299

0.9 

.4 

49.2

32.2 

3.79 

.07 

'4.5

91.06 

1.60

[89.5]

433

11P15-287

8.2 

2.27 

1.04 

31.6 

14.79

[57.9]

446

11P45-12

18.7 

3.3 

1.22

27.8

7.90 

[58.9]

Idaho Continued

395 396 397

11P15-259 11P15-260 11P15-261

3.9 4.1 8.1 

.7 1.1 1.9 

.6 .5 .5 

47.4 46.4 44.2

h.i h.s '1.3

33.0 32.1 28.0 

3.28 3.18 3.24 

.22 .23 .14 

8.9 11.3 10.9

99.10 100.21 98.28 

1.38 1.34 1.36

[97.7] [98.9] [96.9]

Idaho Continued

408 409 410

11P15-273 11P15-274 11P15-275

4.6 4.7 6.4 

1.2 1.0 1.2 

.5 .6 .6 

47.2 48.7 47.5 

1.3 1.0 1.1 

34.3 34.4 32.0 

3.51 3.63 3.53 

.25 1.16 .13 

8.6 5.9 7.3

101.46 101.09 99.76 

1.48 1.53 1.49

[100.0] [99.6] [98.3]

Idaho Continued

421 422 423

11P45-4 11P45-5 11P45-1

3.5

1.7 0.9 .9 

.7 .3 .6 

44.5 49.5 48.0 

_____ _____ .9

29.4 34.9 35.5 

3.30 3.71 3.37 

.43 .09 .17 

*11.6 *5.4 *8.2

91.63 94.80 101.14 

1.39 1.56 1.42

[90.2] [93.2] [99.7]

Idaho Continued

434 435 436

11P15-288 11P15-289 11P15-290

16.6 7.7 2.3 

4.44 1.74 1.18 

1.38 .75 .53 

26.9 34.5 36.6 

10.98 5.75 5.49

[60.3] [50.4] [46.1]

Idaho Continued

447 448 449

11P45-13 11P45-14 11P45-15

9.4 13.7 5.9 

1.7 2.1 .4 

.76 1.02 .24

32.9 31.6 36.4

5.90 4.98 2.76 

[50.7] [53.4] [45.7]

398

11P15-262

24.6 

3.3 

1.0 

33.9 

'1.9 

21.9 

2.39 

.07 

11.7

100.76 

1.01

[99.8]

411

IIP 15-276

6.8 

1.3 

.6 

47.6 

1.0 

33.8 

3.57 

.13 

6.5

101.30 

1.50

[99.8]

424

11P45-2

12.3 

2.5 

.8 

36.4 

2.6 

25.3 

2.92 

.04 

*14.4

97.26 

1.23

[96.0]

437

11P15-291

14.6 

3.66 

1.18 

29.9 

5.37

[54.7]

450

11P45-16

23.5 

5.0 

1.84

24.6

6.94 

[61.9]

399

11P15-263

17.6 

2.4 

1.0 

37.5 

'2.0 

25.4 

2.51 

.24 

12.4

101.05 

1.06

[100.0]

412

IIP 15-277

4.4 

.5 

.4 

50.8 

.6 

35.5 

3.84 

.05 

4.6

100.69 

1.62

[99.1]

425

11P45-3

23.3 

3.6 

1.4 

30.6 

3.1 

22.3 

2.10 

.03 

*15.8

.88

[101.4]

438

400

11P15-264

18.4 

2.2 

.9 

36.3 

*2.2 

25.2 

2.43 

.41 

14.5

102.54 

1.02

[101.5]

413

11P15-278

14.9 

1.8 

.7 

41.4 

1.0 

24.1 

2.51 

.01 

12.3

98.72 

1.06

[97.7]

426

11P15-280

415.7 

3.10 

.93

30.6

6.37

[56.7]

439

11P15-292 11P15-293

13.3 

2.74 

1.24 

30.3 

6.22

[53.8]

451

11P45-17

'4.4 

1.1 

«.3 

< .1 

49.0 

34.4

1.9 

'5.7 

[<96.9]

20.6 

3.63 

1.24 

27.4 

5.68

[58.6]

452

11P45-18

*23.5 

3.4 

«.7 

< .1 

37.5 

26.6

401

11P15-265

17,6 

3.1 

1.5 

34.6 

*2.9 

23.9 

2.57 

.13 

16.0

102.30 

1.08

[101.2]

414

11P15-279

1.3 

.8 

45.4

33.0 

3.30 

.09 

8.5

92.39 

1.39

[91.0]

427

11P15-281

*15.2 

2.14 

.78

29.6

6.89

[54.6]

440

11P45-6

23.5 

2.7 

1.12 

25.7 

7.70

[60.7]

453

11P45-19

5 30 .4 

4.1 

 l.O 

< .1 

33.2 

23.5

2.3 3.6 

'7.9 "10. 1

402

11P15-266

17.0 

3.1 

1.4 

35.8 

'2.9 

23.9 

2.84 

.03 

16.7

103.67 

1.20

[102.5]

415

IIP 15-294

19.4 

2.7 

1.1 

39.1 

1.0 

27.2 

2.71 

.23 

6.3

99.74 

1.14

[98.6]

428

11P15-282

4 18. 7 

4.48 

1.73

23.4

14.82

[63.1]

441

11P45-7

18.5 

2.7 

2.56 

29.5 

4.66

[57.9]

454

11P45-20

5 3.7 

.8 

'.71 

.14 

49.4 

34.2 

.85 

.055 

T1.30 

'5.4 

r QA A n

403

IIP 15-267

14.5 

3.8 

1.2 

34.8 

*3.3 

23.3 

2.33 

.03 

19.4

102.66 

.98

[101.7]

416

11P15-295

3.4 

.9 

.4 

49.5 

.7 

34.4 

3.53 

.18

6.6

99.61 

1.49

[98.1]

429

11P15-283

4 19. 2 

4.30 

1.65

23.6

14.39

[63.1]

442

11P45-8

15.7 

3.4 

1.12 

25.8 

16.00

[62.0]

455

11P45-21

*26.6 

4.0 

*1.03 

1.13 

32.0 

21.6 

.42 

.018 

7 1.80 

'7.6 

r Qa f> ~\

'Moisture at 105»C.

z Ignition loss an approximate 

measure of organic matter content 

if rock does not contain carbonates 

(Lowell, 1952, p. 45).

'Calculated from reported F.

4 Acid insoluble.

s SiO,.

*Fe.

7 Noncarbonate carbon.

'At 1.000«C.
ANALYSES OF SAMPLES 253

Spectrographic analyses

[C = 1-5 percent, D =0.1-1.0 percent, E =0.01-0.1 percent, F =0.001-0.01 percent, G =<0.001 percent} 

I 452 453 454 455 I ^451 452 453~

Be ___________

B, 

Na __________

Sc _ _ _

Ti__ _____ _____

V _____________

Cr ____________

Mn ____________

Ni __ _ ___ _____

Co ____________

Cu ____________

451

________ F

D

________ D

________ D

________ D

________ E

________ D

________ F

________ F

452

E

D

O

D

D

E

D

E

F

453

E

O

O

D

O

F

F

F

454

G

F

C

D

E

E

F

455

G

E

D

F

D

E

D

F

F

Zn _________

Sr _________

1C _ _ __

Zr__ _______

Mb _________

Mo ________

Ag _______

Cd ________

Sn _________

Ba _________

Pb _________

451

____ E

____ E

____ F

____ E

____ F

____ E

____ E

452

E

E

F

E

E

E

E

453

E

E

F

E

E

E

E

454

E

E

F

F

E

455

E

E

E

E

E

F

G

E

E

E

E

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Idaho Continued Idaho Continued

391-425. Caribou County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. Fifteen miles by road northeast of Georgetown, Deer 

Creek-Wells Canyon area. ( Deiss, 1949, p. 62, 64, 83, 85, 87-91. 

94, pis. 5-7; Lowell, 1952, p. 2, 6, 7, 9, 10, 12. 15, 16, 21-27, 

45-47, ph. 1-3.) Phosphate rock, black, blackish-brown, dark-browngray. Mineralogy. Tounage estimated. Index and geologic maps, 

geologic sections, correlated columnar sections. Photomicrographs. 

Use: Source of elemental phosphorus. Possible use: Fertilizer, source 

of vanadium and fluorine.

391-394. SiNEi sec. 32, T. 9S., R. 45 E. Trenches A and B.

391. Sample 4, 1 ft 4 in. thick.

392. Sample 2, 1 ft thick.

393. Sample 11, 2 ft thick.

394. Sample 15, 1 ft 6 in. thick.

1954, p. 2, 4, 15-19.) Phosphate rock. Sample 428, phosphate rock, 

calcareous. Index map, detailed measured section.

395-413. SjSWl sec. 34, T,

395. Sample 2,

396. Sample 3,

397. Sample 4,

398. Sample 5,

399. Sample 6,

400. Sample 8,

401. Sample 11,

402. Sample 12,

403. Sample 13,

404. Sample 40

405. Sample 42,

406. Sample 47

407. Sample 48

406. Sample 49

409. Sample 50

410. Sample 52

411. Sample 55

412. Sample 56

413. Sample 57

. 9S., R. 45 E. Trench I. 

1 ft 6 in. thick. 

3 ft 3 in. thick. 

10 in. thick. 

3 ft thick. 

7 ft 7 in. thick. 

2 ft 8 in. thick. 

, 1 ft 11 in. thick. 

, 2 ft 10 in. thick. 

, 1 ft 6 in. thick. 

, 6 in. thick. 

, 11 in. thick. 

, 3 ft 6 in. thick. 

, 2ft 6 in. thick. 

, 2 ft thick. 

, 1 ft 1 in. thick. 

1 ft 8 in. thick. 

, 4 in. thick. 

, 10 in. thick. 

, 4 in. thick.

	Sample

426. 6635-JAP

427. 6644-JAP

428. 6659- TMC

429. 6740-RGW

430. 6741-RGW

431. 6742-RGW

432. 6743-RGW

433. 6744-RGW

434. 6745-RGW

435. 6746-RGW

436. 6747-RGW

437. 6749-RGW

438. 6753-ERC

439. 6756-ERG

Ft from top of member

176.5-177.1 

159.7-160.7 

143.1-143.7 

47.0- 47.8 

45.5- 47.0 

44.3- 45.5 

42.9- 44.3 

41.5- 42.9 

40.4- 41.5 

39.7- 40.4 

38.9- 39.7 

37.3- 38.1 

34.4- 35.3 

30.0- 31.9

440-450. County, formation, and member as in samples 391-425. SWiSEi sec. 16. 

T. 10 S., R. 45 E., Clear Creek. ( Swanson and others, 1956, p. 2, 26, 

£7.) Phosphate rock. Samples 446 and 450, phosphate rock and 

mudstone. Trench sample. Index map, detailed measured section.

Sample

440. 7302-RPS

441. 7325-RPS

442. 7329-LDC

443. 7330-LDC

444. 7331-LDC

7332-LDC

7333-LDC

445.

446.

447. 7335-LDC

448. 7336-LDC

449. 7340-LDC

450. 7343-RPS

Ft from top of member

136.9-144.0 

51.0- 52.0 

39.7- 42.2 

35.2- 39.7 

32.6- 35.2 

31.7- 32.6 

30.3- 31.7 

27.2- 29.5 

24.8- 27.2 

20.7- 21.6 

15.7- 16.4

414. WiNEl sec. 5, T. 10 S., R. 45 E. Trench D, sample 1. 

Phosphate rock, 5 ft thick.

415-417. NWiNEi sec. 9. T. 10 S., R. 45 E. Trench E.

415. Sample 1A. 4 in. thick.

416. Sample 2A, 2 ft 4 in. thick.

417. Sample 3A. 6 in. thick.

418-420. NWi sec. 9, T. 10 S., R. 45 E. Trench H.

418. Sample 12, 1 ft 4 in. thick.

419. Sample 15, 1 ft 8 in. thick.

420. Sample 22, 2 ft 1 in. thick.

421-425. SWisWi sec. 9, T. 10 S., R. 45 E. Trenches G and F.

421. Sample 11, 3 ft 1 in. thick.

422. Sample 17, 1 ft 4 in. thick.

423. Sample 1, 4 ft 2 in. thick.

424. Sample 9. 11 in. thick.

425. Sample 10. 4 ft 3 in. thick.

426-439. County, formation, and member as in samples 391-425. NWiNWl

sec. 8, T. 10 S., R. 45 E., Snowdrift Mountain. ( Smart and others,

451-453. County, formation, and member as in samples 391-425. Sec. 29, T. 10 S. 

R. 45 E., south of Georgetown. Collector, A. L. Service. ( Mabie and 

Hess, 1964. p. 2, 3, 5, 7, 8, 9, 12, 13, 58, 81, 82; Service and Popoff, 

1964, p. 6. 11, 12. 28, 31~33, 63.) Mineralogy. Tonnage estimated. 

Index map, compositional classification triangle. Physical properties, 

beneficiation tests. Possible use: Agricultural, chemical, metallurgical.

451. Field No. ALS-1. Phosphorite, light-brown, medium-grained; 

5.5 ft thick.

452. Field No. ALS-3. Phosphorite, brown, fine-grained, argillaceous, 

siliceous; 12.4 ft thick.

453. Field No. ALS-2. Phosphorite, brown, fine-grained, argillaceous, 

siliceous; two beds 15.6 and 4.5 ft thick.

454, 455. County, formation, and member as in samples 391-425. [Sec. 29] ,

T. 10 S., R. 45 E., near Georgetown. ( Town, 1966, p. 2-6, 7-9, 12.) 

Trench sample. Mineralogy, thin-section description. Geologic 

section; compositional triangle. Beneficiation tests.

454. Field No. CF-16. Phosphorite, dark-brown; 2.8 ft thick.

455. Field No. CF-15. Phosphatic shale, medium-brown; 3.0 ft thick.

487-187 O - 73 - 17
254 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more Pf)s (Group P) , special-rock category Continued

Chemical analyses Continued

Idaho Continued

SiO,

Acid insoluble __

Al-0, ________

Fe_0, ________

MgO _________

CaO ___ ____

K_O _________

H.O+

HjO- ________

TiO, ________

P.O

MnO _________

CO, _________

SO, _________

S ___________

N ___________

F ____ _

Cl __________

CrA 

BaO _________

Oil __________

Ignition loss _ _

LessO ________

Total ____

456 457

11P45-22 11P45-23

5-1 qc 5 ft QQ

 .36 .31

_ ____ .91

___ .31 .48

___ .057 .060

M 2.41 B 2.87

B 7.8 "8.4

___ [97.2] [101.1]

458

11P45-24

20.7

3.3 

5 1.15 

.37 

35.1

24.4

1.00

.63

.062

B 3.83

"10.2

[100.7]

459

11P45-25

17.0

3.9

*1.87 

.30 

32.8

21.6

.72

1.09

.044

B 7.81

"17.5

[104.6]

460 461

11P45-26 11P45-27

20.2 18.0

4.1 3.5 

51.26 S 2.83 

.35 .30 

33.9 38.9

22.0 27.1

1.70 3.14

.70 .25

.060 .057

B4.96 "1.42

B12.8 *6.0

[102.0] [101.5]

462

11P45-28

9.1

.9

5 .47 

.09 

47.9

34.9

.12

.022

B .43

B 2.7

[96.6]

463 464 465 466

11P15-108 11P15-109 11P15-110

'7.50 '8.15

.96 1.16 

6 .80 *.87 

.22 .31 

45.96 45.99 

.78 .65 

.40 .45 

'l.96 *1.90

.07 .06 

32.24 32.53 

.002 .002 

1.80 1.72 

 l.66 *1.74 

".00 ".00 

.091 .10 

3.40 3.33 

.03 .03 

".35 ".40 

.13 .13 

None None 

2.6 1.9 

*.07 *.07 

M 2.29 U 2.35

"99.21 "100.47

2 6.02 '3.93 

*6.86 ______

1.16 4 .74 

*.87 *.60

.31 ______

45.99 47.94

.06 _ ___

32.53 33.56

1.34 2.06

3.33 3.37

*5.89 __

104.36 92.20 

20 1.40 "1.42

[102.96] "[90.78]

467 468

11P16-12

18.2

2.8 i.r

.63

40.3 

.67

.86

'1.6

.4

.22

27.6

1.54

2.93

B .8

".10

".007

99.76 

"1.23

[98.5]

18.9

28.2

[47.1]

Idaho Continued

SiOj _________

A1A 

Fe_0» ________

MgO _________

CaO _________

NajO ________

K_0 _

HjO- ________

TiO, ________

P_0S -

CO, _________

SO, _________

F

Oil ____ ____

eU __________

Less O ________

Total __ _

469 470

11P16-13

1 ft Q " 1 *\ T

 2.2 ______

6 1.0 _____

 43.0 _____

' q 0

 .4 ______

.15 _____

___ 2.95 ____

___ *1.0 ______

____ ".006 ______

_ _ 103.31 _____

__ . "1.24 _____

___ [102.1] [45.8]

471 472

11P16-14

17.4 

1.1 i.e

.13 

42.8 

.40 

.25 

7 1.2 

.3 

.05 

31.0 

.69

2.93 

B.8 

".12 

17 .004

100.77 

20 1.23

[99.5]

28 15. 9

32.3

[48.2]

473 474

11P16-15

19.0 *n.6 

3.0 __ __

6 1 2

cQ

.78 ______

7 2.6 ______

.18 ______

28.1 28.4 

1.15 ______

2.70 ______

"1.3 _-_.._

".16 ______

".007 ______

"1.14 ______

[99.5] [46.0]

475 476 477 478 479

11P17-1 11P17-2 11P17-3

5.4 

1.0

*.79

.04

48.6

.64

.37

7 1.6

.5

.09

34.5 

1.86

3.43

"1.8

".05

17 .006

100.68

20 1.44

[99.2]

M 4.3 10.8 

_ ___ 1.5

__ _ .38

_____ 38.9

_____ .60

_____ .80

_____ 7 2.2

_____ .5

_____ .28

34.5 27.3 

_____ 1.90

_____ 1.56

_____ 3.15

______ "2.1

______ ".10

_____ 17 .009

_____ 93.28

 1.33

[38.8] [92.0]

Idaho Continued

A1.0, .

Fe-0, _

CaO _________

P_05 .

Chem U ______

V,0, ________

Ignition loss _ __

Total ___

482 483

11P17-6 11P41-1

__ M 12.6 3.5

___ .73 .8

*.83 .9

___ _____ 50.9

____ 31.3 36.8

. _ .011 __ _

___ tt 3.31 2.1

. ___ [48.8] [95.0]-

484

11P41-2

5.2 

1.7 

1.3 

48.2 

34.3

2.6

[93.3]

485

11P41-3

2.9 

.6 

.4 

52.2 

35.7

2.9

[94.7]

486 487

11P41-4 11P41-5

5.3 4.5 

.7 .3 

.5 .3 

49.0 48.8 

34.3 33.2

.89 ______

3.6 5.8

[94.3] [92.9]

488

I1P41-6

6.7 

1.4 

1.3 

43.8 

29.8

8.7

[91.7]

489 490

11P41-7 11P41-8

22.3 14.3 

3.1 2.3 

1.6 1.3 

29.9 35.6 

19.5 23.4

.12 ___ _

15.0 13.4

[91.5] [90.3]

M 10.0 21.0 

_____ 1.0

5 .3

____ 1.6

_ ___ 39.8

31.4 25.6 

_____ "6.5

M< 1

[41.4] [95.9]

480

11P17-4

12.5 

1.4 1.0

.2

45.4

31.2 

24 3. 2

[94.9]

481

11P17-5

8.43

.11 

49.84 

1.18 

.22

.008 

33.93 

Present

3.63 

.24

97.726 

"1.53

[96.20]

Minor elements and oxides of

sample 481

S _ __ Present

Cl _ __ 0.008

V_Os __ .03 

Cr_O, __ .07 

MnO ___ .008 

Ni ____ .005

Co ____

Cu _____

Zn _____

MoO, __ 

Ag _____

Pb _____

0.000 

.001 

.012 

.002 

.00004 

.002

'Total Si.

2 Without regard for F. 

'insoluble in 1:1 HC1. 

4 Total Al. not corrected for Ti. 

'Fe.

* Total Fe or total iron. 

7 Total water.

'Total water at 800eC, does not 

include water at 105°C.

'Total sulfates. 

"Acid insoluble sulfide. 

"V.O,.

* For Conda area; not 

necessarily in sample.

B Noncarbonate carbon. 

M Organic C. 

"230°-500°C.

Oil by distillation at about 

500° C, distillate weighed.

17 Radiometric determination 

by B.A. McCall.

* At 1.000°C.

"Constant weight at l.OOO'C 

after drying at 105°C.

20 Calculated from reported F.

Corrected for O equivalent of 

F, Cl. and pyritic S; sample 464, 

CuO = 0.011 percent, ZnO = 0.001 

percent, AsjO, = 0.0026 percent.

22 Sample air-dried.

23 Acid insoluble.

"ignition loss, at 1,000°C.
ANALYSES OF SAMPLES 255

Spectrographic analyses

[ C = 1-5 percent, D = 0.1-1.0 percent. £ = 0.01-0.1 percent. F =0.001-0.01 percent, G =<0.001 percent, ND = not detected. For samples 467,469,471,473,475,477: Elements 

looked for but not detected; Ge,Rb,Nb,Ru,Rh,Pd,In,Sn,Te,Cs,Ce,Pr,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Lu,Hf,Ta,W,Re.Os,Ir,Pt,Au,Hg,Tl,Bi, and Th; analysts,Charles Annell, 

Joseph Haffty; geochemical determinations of As.Sb.Se, by H.E. Crowe, J.E. Swick, R.R. Beins]_____________________________________________

Li _____

Be

B ____ , Na ___

CTi ___

V _____

Cr ____

Mn ____

Ni ____

Co ____

Cu ____

Zn ____

Ga ____

As ____

Se ____

Sr ____

Y ____

Zr ____

Mo ____

Ag 

Cd ____

Sb ____

Ba ____

La ____

Nd ____

Yb ____

Pb ____

456

G

E

D

D

D

D

D

F

E

E

E

E

F

F

E

457

G

E

D

D

D

E

D

F

E

E

E

E

E

F

G

E

458

E

D

D

D

C

D

F

F

E

F

459

F

E

D

D

C

F

D

F

E

D

D

E

E

F

E

E

E

460

G

E

D

D

E

E

D

F

E

E

E

F

461

G

E

D

D

D

E

E

F

E

E

F

462 467

_____ ND

_ ___ 0.0001

F <.005

E _____

_____ .001

E _____

_____ .1

D .3

D .003

D .03

_____ <.001

F .03

_____ .01

_____ .001

_____ .002

_____ .1

E .1

_____ .01

_____ .003

F .001

_____ <.005

_____ .0005

_____ .03

_____ .03

_____ .03

_____ .001

_____ .001

469

ND

< 0.00005

<.005

.001

.03

.1

.01

.01

<.001

.01

.01

<.001

.003

.0007

.1

.1

.003

.003

.001

<.005

.0005

.03

.03

.03

.001

<.001

471

ND

< 0.00005

<.005

<.0005

.003

.1

.003

.03

<.001

.01

.03

<.001

<.001

.001

.1

.03

.001

.01

.0003

<.005

.0003

.01

.01

<.006

.0003

<.001

473

ND

0.0001

<.005

.003

.03

.3

.01

.03

<.001

.03

.01

.001

.004

.001

.1

.1

.003

<.0005

.001

<.005

.0004

.03

.03

.03

.001

<.001

475

ND

< 0.00005

<.005

.003

.003

.1

.01

.01

<.001

.003

.01

<.001

.002

.001

.03

.1

.003

.001

.0001

<.005

.0005

.01

.1

.03

.003

<.001

477

ND

0.0001

<.005

.001

.01

.1

.01

.01

<.001

.01

.01

<.001

<.001

.003

.1

.1

.003

.003

.0003

.01

.0004

.01

.03

.03

.003

<.001

479

F

C

D

D

D

E

E

F

___

E

F

F

F

E

480

F

C

D

D

D

E

E

F

E

E

F

E

F

E

DESCRIPTIVE NOTES 

C Underscored page numbers in reference indicate source of analysis ]

Idaho Continued

460.

461.

462.

456-462. Caribou County. Permian, Phosphoria Formation, Meade Peak Phosphatic 

Shale Member. [Sec. 29], T. 10 S.. R. 45 E., near Georgetown. 

(Town, 1966, p. 2-6, 7, 9, 12.) Trench sample. Mineralogy, thinsection description. Geologic section, compositional triangle. Beneficiation tests.

456. Field No. CF-14. Phosphatic shale, light-brown; 3.8 ft thick.

457. Field No. CF-13. Phosphatic shale, medium-brown; 6.9 ft thick.

458. Field No. CF-12. Phosphatic shale, dark-brown; 6.0 ft thick.

459. Field No. CF-10. Phosphatic shale, medium- to dark-brown;

10.4 ft thick. 

Field No. CF-3. Phosphatic shale and muds tone, dark-brown;

14.Oft thick.

Field No. CF-2. Phosphorite, light-brown; 5.1 ft thick. 

Field No. CF-1. Phosphorite, light-gray; 17 ft thick. 

463-466. Caribou County. [Phosphoria Formation. T. 8 S., R. 42 E.], near town 

of Conda. Phosphate rock.

463, 464. Samples 454, 973. (Jacob and others, 1933, p. 11, 22, 28, 

31, 46, 51.) Tonnage estimated. General use: Manufacture of phosphoric acid, fertilizer; source of vanadium.

465. Analyst, L. F. Rader, Jr. Sample 973. ( Hill, Marshall, and 

Jacob, 1931, p. 1120. 1123. 1124.) Physical properties.

466. ( Marshall and others, 1935, p. 205, 206. 209.) Beneficiation

tests. Possible use: Fertilizer, livestock feed [implied] .

467 - 474. Cassia County. Phosphoria Formation, Meade Peak Phosphatic Shale Member. Sec. 7, T. 12 S., R. 29 E., near Mud Spring. ( Smart and others, 

1954, p. 2, 20, 21; samples 467, 469, 471. 473. Gulbrandsen. 1966, 

p. 770, table I.) General mineralogy. Index maps, detailed measured 

section. 

467, 468. Sample 6414-RAS. Phosphate rock. 77.4-78.3 ft from top

of member. 

469,470. Sample 6416-RAS. Phosphate rock, argillaceous, 75.9-76.8

ft from top of member. 

Sample 6420-MAW. Phosphate rock, 67.1-68.1 ft from top

of member. 

Sample 6438-TMC. Phosphate rock, 29.2-31.2 ft from top

of member.

Clark County. Phosphoria Formation, Retort Phosphatic Shale Member. 

NW* sec. 12, T. 14 N., R. 40 E., Centennial Range. ( Klepper and 

others, 1953, p. 2, 3, 36; samples 475, 477, Gulbrandsen. 1966, p. 770, 

table ^1.) Trench sample. General mineralogy. Index maps, detailed 

measured section. 

475,476. Sample GAP-518. Oolite-pellet phosphorite, 19.5-20.2 ft

from top of member. 

477.478. Sample OAP-521. Pellet phosphorite, 15.9-17.4 ft from top

471, 472.

473, 474.

475-478.

Idaho Continued

of member.

479, 480. dark County. Phosphoria Formation, Meade Peak Phosphatic Shale Member. Sees. 11-14, T. 14 N., R. 40 E., Centennial Range. Centennial 

mines. Collector, A. L. Service. ( Mabie and Hess, 1964, p. 2-4, 7, 

8. 9, 12, 13, 25, 58, 72; Service and Popoff, 1964, p. 6, 11, 12, 28. 

30, 32, 33, 63.) Mineralogy, tonnage estimated. Index map, compositional classification triangle. Physical properties, beneficiation tests. 

Photomicrographs. Possible use: Agricultural, chemical, metallurgical.

479. Pield No. CCP-3. Phosphorite, light-gray, coarse-grained, cherty, 

arenaceous, nonfriable.

480. Field No. CCP-4. Phosphorite, gray, coarse-grained, partially 

cherty, arenaceous, nonfriable; 4.6 ft thick.

481. County, formation, and member as in samples 479, 480. NEi sec. 7, 

T. 14 N., R. 41 E., Centennial Range. Sample GAP-505. ( Klepper 

and others, 1953, p. 2, 36-38.) Phosphate rock, 1.7-6.3 ft from top of 

member. Trench sample. Index map, detailed measured section.

482. County, formation, and member as in samples 479, 480. NEi sec. 19,

T. 14 N., R. 41 E., Taylor Creek Ridge. Sample RFC-5564. ( Cressman 

and Swanson, 1964, p. 280, 311, £23-526, pis. 14, 15.) Phosphorite, 

coarsely oolitic, thin- to thick-bedded; 1.5 ft thick. Channel sample. 

Index maps, detailed measured section. Photomicrographs.

483, 484. Teton County. Formation and member as in samples 479, 480. Sec. 6, 

T. 3 N., R. 46 E., about 3 miles northeast of town of Victor, Teton 

Range. Analyst, F. J. Gray. Trench C. (Gardner, 1944, p. 3, 20, 30, 

pi. 3.) Index and geologic maps, detailed measured section. Possible 

use: Fertilizer, source of vanadium.

483. Sample C-4. Phosphate rock, light-gray, hard; contains oolites and 

pellets; 1.7ft thick.

484. Sample C-3. Phosphate rock, light-greenish-gray, weathered;

contains oolites; 1.9 ft thick. 

485-490. County, formation, member, analyst, maps, and use as in samples 483,

484. NEi sec. 18, T. 4 N., R. 44 E., 1 mile north of Elk Flat, Bighole 

Mountains. Trench E. ( Gardner, 1944, p. 3, 20, 27, J28, pis. 2, 4.) 

Detailed measured section, correlated columnar sections.

485. Sample E-l. Phosphate rock, dark-gray; contains a few pisolites; 

1.5 ft thick.

486. Sample E-4. Phosphate rock, dark-gray; contains oolites, pellets, 

and angular fragments of phosphate; 0.7 ft thick.

487. Sample E-5. Phosphate rock, dull-gray; contains scattered oolites, 

pellets, and angular fragments of phosphate; 0.8 ft thick.

488. Sample E-7. Phosphate rock, gray to black, shaly; contains pellets 

0.5 ft thick.

489. Sample E-12. Phosphate rock, black; contains pellets; 0.8 ft thick.

490. Sample E-14. Phosphate rock, black; contains pellets; 1.0 ft thick.

487-187 O - 73 - 18
256 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 21. Analyses of samples from Idaho of phosphate rock or nodules containing 21.1 percent or more PtO8 ( Group P), special-rock category Continued

Chemical analyses Continued

Idaho Continued

Insoluble____ _ _

Al,0, _________

FejO, ________

CaO _________

Ignition loss _____

Total __ _

491

11P41-9

__ 16.3

__ 2.8

__ 1.5

__ 33.5

__ 20.9

__ 15.2

__ [90.2]

492

11P41-10

19.3 

4.5 

2.3 

36.8 

24.6 

6.3

[93.8]

493

11P41-11

12.3 

.5 

.9 

45.8 

31.2 

3.5

[94.2]

494

11P41-12

2.5 

.3 

.5 

49.2 

33.2 

5.4

[91.1]

495

11P41-13

21.0 

3.2 

1.9 

30.3 

19.2 

14.8

[90.4]

496

11P41-14

13.3 

2.2 

1.1 

37.4 

25.0 

12.9

[91.9]

497

11P41-15

21.9 

3.1 

1.8 

29.4 

18.9 

15.7

[90.8]

498

11P41-16

3.5 

1.1 

1.0 

48.3 

32.0 

5.3

[91.2]

499

11P41-17

7.2 

2.0 

1.1 

45.6 

30.8 

5.3

[92.0]

500

11P41-18

20.7 

.8 

1.0 

41.8 

28.9 

2.4

[95.6]

501

11P41-19

1.8 

.5 

.8 

52.0 

36.3 

3.3

[94.7]

502

11P41-20

21.7 

4.2 

1.9 

35.1 

24.0 

6.3

[93.2]

503

11P41-21

20.6 

3.7 

1.9 

34.4 

23.5 

8.5

[92.6]

DESCRIPTIVE NOTES 

[ Underscored page numbers in reference indicate source of analysis]

491-503.

Idaho Continued

Teton County. Permian, Phosphoria Formation, Meade Peak Phospha tic 

Shale Member. T. 4 N. , R. 44 E. , Bighole Mountains. Analyst, 

F. J. Gray. ( Gardner, 1944, p. 3, 13, 20, 25, 26, 28, 29, pis. 2, 4.) 

Index and geologic maps, detailed measured section, correlated columnar 

sections. Possible use: Fertilizer, source of vanadium. 

491, 492. NEi sec. 18, 1 mile north of Elk Flat. Trench E.

491. Sample E- 20. Phosphate rock, black; contains 

pellets; 0.1 ft thick.

492. Sample E- 30. Phosphate rock, dull-gray to black,

fine-grained; 0.8 ft thick. 

493-499. NWi sec. 22, Mahogany Ridge. Trench D.

493. Sample D-l. Phosphate rock, dark-gray, hard; 

weathers bluish gray; 1.9 ft thick.

494. Sample D-5. Phosphate rock, black; contains pellets; 

0.8 ft thick.

495. Sample D-7. Phosphate rock, black, shaly; contains 

pellets; 0.8 ft thick.

500-503.

Idaho Continued

496. Sample D-14. Phosphate rock, sooty-black; contains 

pellets; 1.1 ft thick.

497. Sample D-19. Phosphate rock, black, shaly; 

contains pellets; 1.9 ft thick.

498. Sample D-21. Phosphate rock, dull-gray to brown; 

contains pellets; 0.3 ft thick.

499. Sample D-29. Phosphate rock, black and gray;

contains pellets; 1.2 ft thick. 

NWi sec. 34, ridge southwest of Patf-son Creek. Trench F.

500. Sample F-7. Phosphate rock, dark-gray; contains 

oolites; 1.1 ft thick.

501. Sample F-8. Phosphate rock, black, thin-bedded; 

contains oolites and pellets; 1.2 ft thick.

502. Sample F-9. Phosphate rock, dull-brown; contains 

pellets; 1.0 ft thick.

503. Sample F-11. Phosphate rock, dull-brownish-gray; 

contains pellets; 2.6 ft thick.

Table 22. Analyses of samples from Alaska, Idaho. Oregon, and Washington, of coal and coal ash, oil shale and oil shale ash, diatomaceous sediment, minerals, and parent

rock and weathered products.miscellaneous group (Group M) , special-rock category

[ Analysis of the ash is indicated by an "a" following sample number. Chemical analyses arranged by rock type, State, quadrangle or county, and stratigraphic position]

Fixed carbon _ _ _ _

Sulfur ___________

Volatile matter _ _ _

Ash ____________

Total _______

Si02 ___________

A120, ___________

Fe20, ___________

MgO ___________

CaO ____________

Na,0 ___________

K.r>

TiO, ___________

P,05 -_ _____ 

SO, __ _________

BaO ____ _______

Total _____ _

Sulfur _____ _ ____

Ash ____ _ ___ _

1

56.3 

.5 

1.1 

20.2 

22.4

[100.5]

la

49.9

10.0 

1.4 

3.7 

.9 

.7 

1.1

2.5

[99.3]

2

50M5-1

57.2 

.4 

.9 

19.9 

22.0

[ 100 .4 ]

2a

51.3 

'25.9 

8.3 

3.0 

5.1 

1.1 

1.1 

2.3

2.4

[100.5]

3

65.4 

.4 

.9 

20.5 

13.2

[100.4]

3a

49.1 

'28.7 

7.9 

1.8 

5.9 

.6 

.8 

1.4

3.3

[99.5]

Oregon

14

36M6-13

'35.04 

1.03

16.91 

39.85 

8.19

15

36M6-4

32.6

.7 

21.3 

29.0 

17.1

4 5

50M 50M 

155-180 155-182

33.9 30.2 

.2 .1 

18.0 18.6 

42.2 43.7 

5.9 7.5

[100.2] [100.1]

4a 5a

28.5 29.7 

2 22.5 17.9 

8.4 13.5 

4.5 5.2 

29.0 28.4

_____ .6

_____ .1

5.8 3.6

.7 ______

[99.4] [99.0]

Alaska

6

50M 

155-185

30.6 

.2 

26.0 

34.8 

8.6

[100.2]

6a

44.4 

16.8 

6.4 

3.6 

22.2

.7 

.5 

4.0

[98.6]

7

50M 

155-179

33.6 

.2 

24.6 

37.7 

4.1

[100.2]

7a

16.7 

'4.1 

16.2 

7.6 

45.1

8.7 

.9

[99.3]

8

50M 

155-181

33.3

.2 

24.0 

37.0 

5.7

[100.2]

8a

29.5 

! 19.8 

9.4 

3.1

28.9

7.8 

.5

[99.0]

9

50M 

155-188

31.0 

.3 

21.1 

34.9 

13.0

[100.3]

9a

49.9 

25.4 

3.1 

4.0 

10.1

1.0 

.2 

3.8

[97.5]

10 11

50M 50M 

155-184 155-183

32.5 34.7 

.2 .2 

21.7 23.1 

36.4 37.0 

9.4 5.2

[10C.2] [100.2]

lOa lla

39.0 31.2 

23.0 20.4 

5.8 7.2 

4.4 8.0 

15.4 23.5

.9 .9 

3.1 .02 

4.8 7.8

[96.4] [99.0]

12

50M 

155-187

30.4 

.2 

20.0 

36.9 

12.7

[100.2]

12a

48.1 

26.4 

2.7 

4.1 

12.2

1.6 

.1

2.9

[98.1]

13

50M 

155-186

31.5 

.4 

21.9 

35.8 

10 '.8

[100.4]

13a

46.2 

20.0 

7.9 

2.8 

12.5

.9 

1.0 

6.7

[98.0]

Washington

16 17

46M17-66 46M17-67

*47.42 *49.99 

1.58 .87 

.49 .70 

6.29 4.76 

36.53 41.09 

9.74 4.15

18

46M 17-68

*34.76 

.60

2.35 

28.05 

34.84

19

46M 17-56

39.0

.4 

11.6

39.5 

9.9

20

46M 17-69

'45.49 

.98 

1.08 

10.10 

38.25 

6.15

21

46M 17-70

'43.25 

1.05 

.32 

11.51 

40.58 

4.65

22 23

46M19-15

46.6 41.5

.4 .4

34.8 32.5 

18.6 26.0

24 25

46M19-14

46.1

.5

32.2 

21.7

42.3

.4

30.2 

27.5

Total _____________ [101.02] [100.7] [ 102.05] [ 101.56] [100.60] [100.4] [102.05] [101.36] [100.4] [100.4] [100.5] [100.4]
ANALYSES OF SAMPLES 257

Table 22. Analyses of samples from Alaska, Idaho, Oregon, and Washington, of coal and coal ash, oil shale and oil shale ash, diatomaceous sediment, minerals, and parent

rock and weathered products,miscellaneous group (Group M) , special-rock category Continued

Chemical analyses Continued

SiO, .

Ai.n.

Fe»O.

FeO _____________ .

MgO .

CaO ____________ .

Na,0 ____________ .

K,0 .

TiO, ___________ __.

PA .

MnO ____________ .

SO, _______________

Total _______ .

26

Oregon Continued

Ma

3.52

4 1.39

.13

1.16

. [6.20]

27

46M19-16

Sulfur ____________

Volatile matter _____

Ash _____________

Total ______ [

SiOi ____ _

Alp, 

Fe,0, ___________

MgO ____________

CaO ____________

Na,0 _______ _ _

v n

P,0g ____________

MnO ____________

Total _______

'includes PjO,. 

'includes P2O, and TiOt

49.3

.4

32.5 

18.2

100.4]

26a

42.8 

27.6 

4.6 

.16 

1.8 

8.8 

.51 

.81 

2.0 

6.2 

.05

[95.3]

48.9

.4

32.5 

18.6

[100.4]

27a

43.7 

29.4 

4.9 

.08 

2.1 

8.4 

.72 

.89 

2.0 

5.9 

.05

[98.1]

15a

55.9 

'24.9 

6.5

.5 

3.5 

1.8 

1.0 

3.5

2.1

[99.7]

28

Washington Continued

I6a

9.00

4 .40

.02 

.05

[9.47]

29

46M19-19

41.4

.4

34.1 

24.5

[100.4]

28a

52.4 

34.5 

3.9 

.00 

1.4 

2.3 

.23 

.91 

1.9 

.52 

.03

[98.1]

38.3

.3

32.9 

28.8

[100.3]

29a

51.7 

33.2 

4.4 

.04 

1.4 

3.5 

.19 

.93 

1.7 

.55 

.04

[97.6]

17a 18a 19a

2.02 25.70 43.1 

_____ _____ '36.5

*.66 *1.53 *11.2

.06 .09 2.3 

.53 3.62 5.2

_____ _____ *.65

[3.27] [30.94] [99.0]

Washington Continued

30 31 32

20 a

4.18

*.73

.07 

.50

[5.48]

33

46M19-18 46M19-20

47.2 44.4 42.9

.5 .5 .4

34.9 33.8 34.3 

17.9 21.8 22.8

[100.5] [100.5] [100.4]

30 a 3 la 32a

50.4 49.0 52.5 

34.1 34.5 32.8 

4.2 4.8 3.5 

.40 .04 .20 

1.6 1.3 .96 

1.4 1.6 2.7 

.31 .30 .37 

1.3 1.2 1.1 

3.2 3.6 1.6 

1.3 1.5 .59 

.02 .01 .02

[98.2] [97.8] [96.3]

'Reported as coke. 

* Reported as iron.

40.7

.3

33.9 

25.4

[100.3]

33a

51.8 

32.6 

3.9 

.04 

1.0 

3.3 

.41 

1.1 

1.6 

.59 

.02

[96.4]

2 la

2.54

*.80

.07 

.47

[3.88]

34

22a

48.0 

30.7 

5.6

2.2 

4.3 

.61 

1.0 

3.5 

2.3 

.33

[98.5]

35

46M19-17

43.3

.4

35.6 

21.1

[100.4]

34a

52.3 

32.6 

4.2 

.04 

1.1 

3.0 

.41 

.93 

1.8 

.59 

.03

[97.1]

41.0

.4

34.6 

24.4

[100.4]

35a

52.2 

32.4 

3.9 

.08 

1.0 

3.8 

.42 

.98 

1.6 

' .60 

.03

[97.0]

23a

50.0 

29.2 

5.4

2.2 

3.8 

.88 

1.0 

2.6 

1.8 

.23

[97.1]

36

24a

54.4 

31.3 

4.4 

.12 

1.7 

2.6 

.41 

.98 

2.2 

.90 

.04

[99.0]

37

46M 19-21

45.7

.4

39.1 

15.2

[100.4]

36a

43.4 

24.6 

6.9 

.04 

4.7 

7.6 

1.3 

.49 

2.5 

3.3 

.04

[94.9]

45.0

.4

37.7 

17.3

[100.4]

37a

44.0 

23.9 

6.8 

.04 

3.3 

8.3 

1.4 

.59 

2.3 

3.4 

.04

[94.1]

25a

55.6 

31.6 

.43 

.08 

1.6 

2.3 

.43 

.88 

2.0 

.74 

.04

[95.7]

38

46M19-73

S 50.48 

1.04 

.55 

2.06 

36.10 

11.36

[101.59]

38a

6.96

*1.20

.05 

1.06

[9.27]

5 Not corrected for TiOt. 

«P.

Coal and coal ash

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Coal and coal ash Continued

15.

16-18.

Alaska. Anchorage quadrangle. Paleocene, Chickaloon Formation. 

T. 19 N., R. 3 E. Matanuska field. ( Fieldner and others, 1918. p. 26, 

28; Barnes and others, 1951, p. 139, 193, pis. 27-29; Selvig and Gibson, 

1956, p. 4, 10, JJ., 24.) Coal, bituminous. Size range of coal: Over 

4 in. to over 1 in. screen. Mineralogy. Index and geologic maps, 

geologic sections, correlated columnar sections.

Alaska. Healy quadrangle. Tertiary. Nenana field, Usibelli and Suntrana 

mines. ( Selvig and Gibson, 1956, p. 4, 10, 11, 24; Barnes and others, 

1951, p. 139, 142, 146, 156, 162, 163, pis. 18. 19. 23.) General: Coal, 

subbiluminous, black with dark brown streak, dull luster. Mineralogy. 

Tonnage estimated. Index and geologic maps, geologic sections, 

correlated columnar sections.

4. NEi sec. 19, T. 12 S.. R. 6 W. Lab. No. 47156. 

5, 6. SEi sec. 23, T. 12 S., R. 7 W. Lab. Nos. 46754, 46755. 

7, 8. SEi sec. 23, T. 12 S.. R. 7 W. Lab. Nos. 47157, 47158. 

9-13. SWi sec. 24, T. 12 S., R. 7 W. Lab. Nos. 46753, 46756, 46757,

46758, 46759. 

Oregon. Coos County. [T. 25 S., R. 13 W.], Coos Bay. Newport.

Analyst. I. C. Alien. ( Mining and Scientific Press, 1900, p. 569.) Coal. 

Oregon. Coos County. [Sec. 28, T. 32 S., R. 11 W.], near town of West 

Fork Station. Andersen coal bed. Lab. No. 20153. ( Fieldner and others, 

1918, p. 26-^8; Selvig and Gibson, 1956, p. 16, ^7.) Coal. Mineralogy. 

Washington. King County. Analyst. I. C. Alien. ( Mining and Scientific 

Press, 1900, p. 569.) Coal and coal ash.

16. [Sec. 1. T. 21 N., R. 6 E., sec. 36, T. 22 N., R. 6 E., 

Ravensdale mine.] Leary.

17, 18. [T. 21 N., Rs. 6. 7 E.] Franklin. 

19. Washington. King County. Eocene and Oligocene, Puget Group. Sec. 25,

T. 23 N., R. 5 E., 5 miles east of town of Renton. New Black Diamond

mine. Lab. No. A34981. ( Fieldner, Cooper, and Osgood, 1931. p. 4,

72, 73, 100, 133; Osgood, 1931, p. 133.) Subbituminous coal and coal

ash. Measured section. 

20, 21. Information as in samples 16-18. [T. 24 N., Rs. 5, 6 E.], Newcastle.

21. Seattle. 

22-37. Washington. Kittitas County. Roslyn-Cle Elum coal field, Roslyn Cascade

and Roslyn mines. ( Geer, 1965, p. 1-4, 7-11, 13-16.) Coal and coal

ash. Bulk density by size. Channel sample. Tonnage estimated.

Measured section. Physical properties. Bulk density 1.80. Samples 22,

24. 26, 28, 30, 32, 34, 36: From 2 in. to 200-mesh size range; samples

23, 25, 27, 29, 31. 33, 35, 37: From 2 in. to 3/8 in. and raw 3/8 in.

to 0 coal.

22, 23. Sec. 1, T. 20 N., R. 14 E., sec. 6, T. 20 N., R. 15 E. 

Samples 6, 7, 4.5 ft thick.

24, 25. Sec. 2, T. 20 N., R. 14 E. Prospect. Sample 9, 4.5 ft thick.

26. 27. Sec. 2, T. 20 N., R. 14 E. Sample 8, 2 ft 4 in. thick.

28, 29. Sec. 7, T. 20 N., R. 15 E. Sample 3, 9 ft 5.75 in. thick.

30, 31. Sec. 8, T. 20 N., R. 15 E. Sample 4, 2 ft 4.5 in. thick.

32. 33. Sec. 20, T. 20 N., R. 15 E. Sample 2, 7 ft 9 in. thick.

34, 35. Sec. 29, T. 20 N., R. 15 E. Sample 1, 5 ft 10 in. thick.

36, 37. Sec. 29, T. 20 N., R. 15 E. Sample 5, 5 ft 2.75 in. thick. 

38. Washington. Kittitas County. [T. 20 N., Rs. 14, 15 E.] Roslyn. Analyst,

I. C. Alien. ( Mining and Scientific Press, 1900, p. 569.) Coal.
258 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

rock and weathered products. miscellaneous group (Group M) , special-rock category Continued

Chemical analyses Continued

Washington Continued

Nitrogen _ _ _

Moisture _ _ _

Ash _______ .

Total ___

SiOj ______ .

A1.0, 

Fe,0, 

MgO 

CaO _________

Na.0 ______ .

K.O _________

TiOz ________

Pl05 .

MnO _________

SOj _________

BaO _________

Ignition loss _ _

Total ____

Water ________

Volatile matter* _ 

Ashat900«C(calc 

Total ___

39

46M27-7

63.6

___ .5

___ 19.8

16.6

___ [100.5]

39a

44.6

___ *34.6

___ T13.1

___ 1.2

___ 4.7

. ___ ».61

B F98 8T

52

50M55-8

51.3

__ 4.5

___ 20.0 

.) __ 24.2

___ 100.0

40

46M31-109

'37,09 

1.08 

.39 

13.85 

42.21 

6.87

[101.49]

40a

5.09

s.85 

.07 

.53

[6.54]

Al

53

50M55-1

38.0 

3.0 

8.0 

51.0

100.0

41

46M31-110

*42.24 

.96 

.59 

13.06 

36.95 

7.74

[101. W]

41a

5.56

"1.01 

.05 

.63

[7.25]

42

46M34-7

59.0

.5

.8 

27.6 

12.6

[100.5]

42a

50.9 

33.0 

4.6 

1.2 

2.1

3.5 

.8

1.3

[97.4]

43 44 45

46M34-6 46M34-8 46M37-101

62.7 63.2 40.7

.5 .5 .3 

.7 .7 7.2 

26.0 26.2 35.3 

10.6 9.9 16.8

[100.5] [100.5] [100.3]

43a 44a 45a

48.2 44.6 47.0 

33.9 34.7 *39.5 

4.8 4.9 T 4.7 

1.4 1.5 1.8 

2.6 3.1 6.0

3.5 3.6 ______

1.1 1.4 ".57

1.7 2.6 ______

[97.2] [96.4] [99.6]

Alaska

46

50M29-4

*12.3

S 3.8 

4 5.3 

S 78.6

100.0

46a

44.0 

11.6 

'2.30 

1.20 

2.10 

1.14 

2.23 

.53 

.40 

.067 

"6.27 

7.56 

S 20.2

14 99. 6

47

50M29-5

*41.2

*4.0 

4 7.5 

S 47.3

100.0

47a

41.3 

2.31 

'2,55 

.10 

.14 

.97 

.48 

.23 

.05 

.009 

U 2.72 

.26 

S49.2

**100.3

48

50M55-4

*26.7

»4.0 

414.2 

555.1

100.0

48a

15.7 

2.47 

»3.01 

.68 

23.1 

.17 

.45 

.19 

.55 

.68 

11 7. 89 

1.81 

11 43. 6

14 100. 3

49

50M55-5

*26.1

»5.6 

410.1 

S58.2

100.0

49a

30.4 

7.04 

»2.28 

1.58 

4.84 

.75 

.98 

.47 

2.10 

.45 

U 7.97 

3.52 

tt 40 .2

14 102. 6

50

50M55-6

»61.1

*9.8 

4 14.8 

5 14. 3

100.0

50a

9.22 

1.25 

»1.42 

.17 

.11 

.16 

.43 

.18 

.17 

.003 

"9.21 

.03 

S 86.4

**108.8

51

50M55-7

*28.2

S 5.0 

4 9.7 

557.1

100.0

5 la

39.1 

5.70 

*8.60 

.88 

2.45 

.62 

1.18 

.42 

.55 

.13 

"13.6 

.03 

S 37.2

"110.5

a ska Continued

54

50M55-2

63.3 

6.5 

12.8 

17.4

100.0

55

50M55-3

36.0 

3.0 

6.9 

54.1

100.0

56

50M68-1

17.6 

2.8 

5.3 

74.3

100.0

Alaska |

52a 53a 54a 55a 56a 57 58 1 59

50M160-2 50M160-1] 11M19-22

SiOf _______ .

A1.0, _

Fe,0, .

FeO _________

MgO _________

CaO _________

Na.O ______ .

KXO _________

HjO+ ________

HjO- ________

TiOj ________

PjOs ________

MnO _____ __

SO," ________

SbjOj .

BaO _________

PbO __ , ______

UOj _

uos _________

Boracic acid ____

Chlorides ______

Ignition loss _ _

Total ___

._ __ 13.1

___ 3.03

___ '3.96

___ .28

__ .75

___ .28

.61

_ _ .22

__ .15

___ .009

_ _ 13.0

.07

__ S 76.1

___ "111.6

42.9 

1.44 

'.77

.07 

.06 

.71 

.22

.14 

<.03 

.002 

2.87

1.91

B49.0

k!00.1

15.4 

1.19 

'.31

.07 

.06 

.50 

.28

.12 

.03 

.001 

2.72

.36

S80.4

U101.4

50.7 

1.34 

»1.77

.17 

.18 

.20 

.28

.10 

.04 

.01 

3.25

.07

S 48.4

14 106. 5

58.0 33.3 31.2 

8.34 4.9 6.0 

*1.29 2.4 4.0

.60 1.7 2.3 

.12 3.0 2.9 

.63 2.3 2.6 

1.70 1.2 1.1

.36 .25 .33

.20 _____ ______

.005 .11 .14 

2.62 _____ ______

.89 .10 .10 

_____ .012 .012

B 24.7

0.6 

Trace 

Trace 

2.9

2.9

| 2.0

39.0 

Trace

.3 

.2 

10.3

33.5

».2

U 99.5 "[49.4] tt [50.8] "[100. 2]

Idaho

60

11M19-18

34.48 

5.49 

None 

Trace 

4.32

a 36. 96

19.14

100.39

61

11M40-13

"2.28

3.84

/ *3.27 

{ ».30

36.54

53.48

".60

100.31

Oregon

62

36M8-3

29.80 

! Trace 

25.00

45.20

100 .00

63

36M8-9

29.96 

.25

22.75

47.04 

Trace

100.00

64

36M8-5

32.15

19.42

48.44

100.01

Minor elements 

[ Samples 46a-56a reported in ppm except where otherwise indicated]

B ________

Sc __________

V ___________

Cr ______ _

Ni __________

Co __________

Cu __________

Zn __________

Ga _______

As __________

Se ________ .

Sr ___________

46a

__ 250

___ 3100

___ 280

___ 95

__ 3

__ 65

__ 140

___ 24

___ 50

___ 860

47a

60

210 

48 

28 

12 

34 

34

110 

20 

110

48a

52

90 

19 

81 

41 

75 

420

37 

3 

580

49a

110

1700 

250 

400 

27 

480 

7000

110 

200 

600

50a 51a 52a

53 80 52

240 660 450 

24 110 40 

22 450 72 

2 150 9 

38 320 40 

38 810 52

37 200 49 

5 10 <1 

70 100 70

53a

35

70 

14 

17 

8 

9 

13

67 

<1 

490

54a

32

200 

18 

22 

8 

8 

48

63 

8 

80

55a

37

140 

16 

72 

14 

25 

38

110 

5 

42

56a

180

1200 

260 

120 

2 

32 

76

27 

100 

200

57

0.017 

.0018 

.012 

.004 

.002 

.001 

.009

.0016

.028

58

0.014 

.0020 

.014 

.006 

.003 

.001 

.010

.0017

.036

See following page for footnotes.
ANALYSES OF SAMPLES 259

Minor elements Continued

Y _________

2.1

Mo ________

Ag ________

Te ________

Au ________

Hg ________

Pb ________

eU ________

46a

. _____ 23

_____ 300 ppb

_____ 100 ppb

_____ 750 ppb

_____ <10

_____ 30

47a

440 

300 ppb 

<50 ppb 

70 ppb 

650 ppb 

<10 

20

48a

11 

330 ppb 

<50 ppb 

70 ppb 

900 ppb 

20 

30

49a

100 

4000 ppb 

<50 ppb 

50 ppb 

1500 ppb 

10 

70

50a

110 

200 ppb 

<50 ppb 

<30 ppb 

1400 ppb 

10 

20

5 la

220 

300 ppb 

<50 ppb 

150 ppb 

1400 ppb 

80 

30

52a

370 

150 ppb 

<50 ppb 

150 ppb 

3000 ppb 

30 

50

53a

170 

100 ppb 

<50 ppb 

70 ppb 

3000 ppb 

<10 

<10

54a

110 

200 ppb 

<50 ppb 

50 ppb 

1200 ppb 

<10 

20

55a "

450 

200 ppb 

<50 ppb 

100 ppb 

1600 ppb 

<10 

<10

56a 57 58

_____ .002 .002

_____ .010 .010

36 _____ ______

400 ppb _____ ______

< 50 ppb _____ ______

70 ppb ___ __ ______

1000 ppb _____ ______

10 _____ ______

20 _____ _____

Footnotes of analyse* on preceding page;

'Reported as coke. 

1 Total carbon. 

'Water.

4Gas, by difference (H.A. Tourtelot. 

oral common., Jan. 14, 1969). 

§At900°C(calc.).

* Includes P.OI.

7 Not corrected for TiO,.

*Iron.

'Total iron as FefO,.

"P.

"Total sulfur as SO,.

*At 1,000° C.

* Dried at 105* C.

k Mathematical total. No 

adjustments, such as oxygen 

included as FefO, if iron is pyrite, 

or inclusion of sulfur twice, due to 

measuring as SO, and also as LOI, 

have been made.

"insoluble.

*H,0+, +110 C; H.O-. -110»C.

"loss of water at 107* = 20.00 percent, at 

175* = 7.36 percent, at 255* = 3.13 percent at 

290* = 0.94 percent, to low redness = 3.90 percent, 

at blasting = 1.61 percent.

"CO,.

"All constituents reported as elements, 

not oxides.

**ThO| =4.1 percent. CetO, = None. 

ZrO| = 0.2 percent, Y%O, = 3.9 percent. 

SrO=0.1 percent.

DESCRIPTIVE NOTES 

[Underscored page numbers in reference indicate source of analysis]

Coal and coal ash Continued

39. Washington. Pierce County. Eocene and Oligocene. Puget Group. Sees. 27, 

34, T. 19 N., R. 6E.. sec. 3. T. 18 N.. R. 6 E.. town of Wilketon. 

Wilkeson mine. Lab. No. 9903. ( Fieldner. Cooper, and Osgood. 1931, 

p. 2, 4, 60. 92, 93, 100; Osgood, 1931, p. 189. 190.) Bituminous coal 

and ash. Index map, measured section.

40.41. Washington. Snohomuh County. [T. 32 N.. R. 5 E.], Bryant. Analyst. 

I. C. Alien. ( Mining and Scientific Press. 1900, p. 669.) Coal and 

coal ash.

42-44. Washington. Thunton County. [NWiNW* sec. 8, T. 15 N., R. 1 W.

Skookumchuck mine]. Skookum mine. Lab. Not. 47728-47730. ( Selvig 

and Gibson, 1956, p. 20. 21. 28. table.3.4.) Coal and ash. Mineralogy. 

45. Washington. Whatcom County. Puget Group. Sec. 13, T. 38 N., R. 2E., 

1 mile from town of Bellingham. Bellingham mine. Collectors, 

D. J. Parker, J. G. Schooing. Lab. No. A39449. (Fieldner, Cooper, and 

Osgood, 1931, p. 4. 97, 100; Osgood. 1931, p. 196.) Subbltuminoui coal 

and coal ash. Measured section.

Oil shale and oil shale ash

46-56. Alaska. ( Tourtelot and Tailleur, 1965. tables 1.^.3. fig. 1.) Mineralogy. 

Index map. detailed measured section. X-ray analysis, Fischer assay.

46. Chandler Lake quadrangle. Earl/?) Jurassic, unnamed unit 

overlying Triassic, Shublik Formation. [16.8, 9.4], 

Cobblestone Creek, about 2 miles below junction of Peregrine 

Creek. Lab. No. D115223. Shale, black, from 1-ftbed. 

Bulk density 2.1.

47. Chandler Lake quadrangle. Presumably Late Jurassic or Early 

Cretaceous. [13.35. 8.2], Welcome Creek, 1 mile below 

junction of Erratic Creek. Lab. No. D115225. Shale or 

impure nonbanded coal, black, beddedi from 1-ft oil shale 

zone. Bulk density 1.7. Thin-section description.

48. Howard Pass quadrangle. Unnamed unit overlying Shublik Formation. [14.7. 11.2], south side of Lisburne Ridge, 2.8 

miles east of Hardway Creek. Lab. No. D115221. Shale, 

dark-gray, weathers brown, laminated, fossiliferous, from 

3-ftbed. Bulk density 1.9. Thin-section description.

49. Howard Pass quadrangle. Unnamed unit overlying Shublik Formation. [ 14.7. 11.2], south side of Lisburne Ridge. 2.S miles 

east of Hardway Creek. Lab. No. D115222. Shale, black, 

fossiliferous; contains concretions; from 3-ft oil shale zone. 

Bulk density 1.8. Thin-section description.

50-52. Howard Pass quadrangle. Presumably Late Jurassic or Early 

Cretaceous. Kiligwa River. Shale, black, bedded. 

Thin-section description.

50. [3.4, 11.4], about 2 miles above junction of Rolling Pin 

Creek. Lab. No. D115217. Sample from 5-ft oil shale 

zone. Bulk density 1.2.

51. [3.45, 12.4], 1.3 miles below junction of Rolling Pin

Creek. Lab. No. D115216. Shale, fossiliferousj from 1- 

ft layer in lower 5 ft oil shale zone. Bulk density 1.8.

Oil shale and oil shale ash Continued

52. Lab. No. D115215. Shale, fossiliferous, from 1-ft layer at

top of 5-ft oil shale zone. Bulk density 1.3.

53, 54. Howard Pass quadrangle. Unnamed cherty unit between Early to 

Lare Mistissippian, Lisburne Group and Early Cretaceous. 

Okpikruak Formation. [9.5, 11.8], south of Monument Ridge, 

1.5 miles east of Cutaway Creek. Thin-section description.

53. Lab. No. D115219. Tasmanite, dark-gray with bluish cast; 

from lower half of 1-ft bed. Bulk density 1.5.

54. Lab. No. D115218. Tasmanite, brownish-gray; from upper 

half of 1-ftbed. Bulk density 1.1.

55. Quadrangle, age, and unit as in samples 53, 54. [10.9, 12.3], 

Cula Creek. Lab. No. D115220. Tasmanite, bluish-gray; 

weathers tawny gray. Float sample. Bulk density 1.2. 

Thin-section description.

56. KUlik River quadrangle. [Late Jurassic or Early Cretaceous.

16.2, 9.45], Middle Fork of Okpikruak River, about 0.2 mile 

below junction of Okanugun Creek. Lab. No. D115226. 

Clay stone, black, iron-stained. Bulk density 1.9.

Diatomaceous sediment

57, 58. Alaska, Unnamed quadrangle north of Adak quadrangle. Bering Sea. 

(Goldberg and Arrhenius, 1958, p. 156, 158. 170. 171. 172, 183.) 

Diatomaceous sediment with volcanic ash layers. Graphic representation 

of chemical analysis. Index map.

57. Lat 52*25' N., long 176*24' W. Sample Ck9. Depth 3,440 m.

58. Lat 83*01'N., long 176°15'W. Sample Ck8. Depth 3,660m. 

Diatomaceous ooze containing considerable amount of glacial 

marine detritus and layers of volcanic ash.

Minerals

59. Idaho. Cnster County. Tertiary. [T. 10 N., R. 13 E.], Stanley basin. 

Analyst, R. C. Wells. ( Hess and Wells. 1920, p. 230; Wells. 1937. 

p. ^13.) Brannerite. Bulk density 5.42.

60. Idaho. Cnster County. [T. 13 N., R. 24 E.], town of Gokttmrg. ( Schaller, 

1907, p. 155. 156.) Evansite, brown, amorphous, conchoidar-fracture, 

massive, very brittle; hardness about 3. Average density 1.98. Index of 

refraction.

61. Idaho. Shoshone County. [Ts. 48, 49 N.. Rs. 3-6 E. Coeurd'Alene

district.] Hypotheek mine. ( Shannon, 1920, p. 88-90.) Bindhiemite, 

yellow, earthy, compact. Mineralogy. 

62. 63. Oregon. Curry County. [T. 40 S., R. 14 W.] , 5 miles north of Chetko

River, onseacoast. Analyst, Thomas Price. (Chase, 1873, p. 287-289.) 

Borate, milk-white, greasy, unctious.

64. Oregon. Curry County. [T. 40 S., R. 14 W.] Analyst, J. E. Whitfieki. 

( Whitfield, 1887, p. 283.) Priceite, white, chalky.
260 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Table 22. Analyses of samples from Alaska, Idaho, Oregon, and Washington, of coal and coal ash, oil shale and oil shale ash, diatomaceous sediment, minerals, and parent

rock and weathered products.miscellaneous group ( Group M), special-rock category Continued

Chemical analyses Continued

SiO, _____________

Al,0, ____________

Fe,0, ____________

FeO _____________

MeO ____________

CaO_ ____________

Na,0 .

K,0 _ _____

H,0 

TiO.

MnO _____________

SO, _____________

Cr,0, ____________

NiO _____________

CoO _________ _

Ignition loss _ _ _ _

Total ________

Oregon Continued Ida

65 66 67 6

36M8-4 36M8-10 36M8-11 11M2

______ _____ _____ _____ 7

______ 1 0.97 h.OO '0.93 1

_ _ 31.73 31.37 32.38

_______ 18.29 18.29 18.29 *

ho

8 69 70 71

9-18 36M8-7 36M8-8 36M10-26

2.15 37.2 37.5 42.81 

Ml 2.0 2.0 ___ __

.69 *12.7 J10.2 2.61 

.50 _____ _ ___ 7.20

.39 26.9 17.2 45.12 

1.75 3.2 1.1 None

1.02 _____ _____ _ ____

.01 _____ _____ _ _ __

.24 __ __ ______

.02 '.08

____ _____ __ '.005 None

B Trace tt Trace tt Trace

_____ "[101.00] "[100.00] "[100.10] 91

.01 T .01 _____ _____

__ .90 *.77 *.79

__ ".77 "l.29 .26

".06 ".17 ______

.91 10.6 _____ .57

J.92 [94.4] [70.2] 99.36

Oregon Continued

77 78 79 80 81 82 83

36M10-50 36M17-39 36M17-14 36M17-34 36M17-38 36M17-40

SiO, ___________ .

A1,O, ____________

Fe.0, ____________

FeO _____________

MgO _____________

CaO _____________

Na,0 _______

K,0 _____________

. ___ _ 54.0 43.0 15.6 1

_____ .7 1.6 6.4

_____ *10.7 1.4 56.1 5

_______ _____ 6.7 .14

B.5 "12. 26 45.63 38.23 

6.9 _____ 6.58 2.34

2.2 J 23.22 8.77 15.88 

.68 _____ _____ ______

.55

_____ _____ 43.1 2.1 1.7 28.01 19.85

_______ .5 1.4 .30

. ______ _____ .02 .06

_______ _____ .02 .06

1

.05 _____ 11.03 12.14

.07 _____ _____ .35

.05 ____ _ _ ______

f "1.12 "8.72

US. |___ ___ 2.4 15.9 15.6 ^ i;-. " 

TiO, ____________

P_05 ___________ .

MnO _____________

CO, _____________

SO, _____________

Cl ______________

Cr,0, .

NiO _____________

CoO ____________

Cu ______________

As ______________

SrO ___________ .

ZrO, ____________

BaO _____________

Volatile matter ______

_______ _____ .03 .12

_____ _____ .14 .25

_______ _____ .26 .27

______ . 7 .01 _____ _____ __

.12 ____ _ __ _ ______

.06 _____ ___ __ ______

25

.04

_____ _____ .36 1.8 2.1 ".12 _____ ______

10 1.2 .37 1.8 2-0 "60.45 "\

13 "55 1 2 '49

__ .50 _____ ______

.23 _____ ______

___ .70 _____ ______

Oregon

72 73

36M10-52 36M10-9

41.43 40.55 

6.25 ______

43.74 21.70 

.55 _____

_____ 7.00

.76 ______

.10 29.66

4.41 ______

99.80 100.24

84 85

36M17-29 36M24-86

43.50 54.95 

7.62 13.47 

7.62 2.26 

_____ 10.00

23.21 3.47 

8.92 7.13 

.11 3.00 

.18 1.69 

_____ .82

_____ .32

.19 2.12 

.02 .35 

.20 .20 

"5.43 ______

.12 ______

.38 ______

f .070

74

36M10-55

42.8 

f 1.1 

\ -8 

6.8 

45.7 

.90 

.03 

.01 

1.6 

.02 

.02 

.12

.45 

.36 

.02 

tt .12

100.8

86

36M33-2

50.85 

12.54 

10.03 

7.11

5.57 

9.33 

2.37 

1.13

.76

.05

75

36M10-56

71.7 

1.4 

14.4 

.14 

3.9 

.12 

.02 

.02 

5.5 

.03 

.01 

.20

.59 

1.5

.03 

B .17

99.7

76

36M10-54

45.8 

3.4 

S 9.7

19.9 

1.0

 .74 

"l.50

[82.0]

Washington

87

46M19-13

54.50 

14.43 

2.17 

8.80

4.24 

8.01 

3.05 

1.29 

f "l.09 

\ ".29 

1.69 

.21

.10

None 

.11

None

.09

None

.06

88

46M36-1

47.35 

i 34.38

4.43 

8.27 

2.55 

1.33

".95

Total 100.55 100.02 100.00 99.78 100.08 100.13 99.26

Sc ______

V _______

Cu _____

78

_______ 0.0017

_____ .0051

_ ___ .0007

Quantitative spectrographic analyses 

[ Elements looked for but not detected: Y,Rh,Cd,Re,Os,Ir,Pt. 

Results have an average accuracy of ± 15 percent]

79 80

0.0076 0.0067 

.016 .020 

.015 .010

78 79 80

Sr _____ < 0.0002 < 0.0002 < 0.0002 V ______

Cr _____

Cu _____

Spectrographic analysis

85

0.01 -0.001 

.01 - .001 

.01 - .001 

<.001

85

Sr _____

Zr ______

Ba __

0.1 -0 

.01- 

.1 -

01 

001 

01

Reported as Na Cl.Fe, Al.

Iron and aluminum oxide. 

»Fe.

*HtO- at 105"C. 

'P.

'MnO,. 

7 S. 

«Cr.

'Chromic oxide. 

" Ni or Ni free. 

"Co.

"co,.

"Sample dried at 212°F. 

" Silicate (anhydrous) . 

"l^O+above 100°C; 

H,O- below 100°C.

"l^O+above 105°C; 

*V> below 105°C. 

"ignition loss.

te

Loss on ignition, principally 

organic matter.

"Chrornite and magnetite; 

FeO-CrO,, FeO-Fe,O,.
ANALYSES OF SAMPLES 261

DESCRIPTIVE NOTES

[Underscored page numbers in reference indicate source of analysis]

Minerals Continued

65-67. Oregon. Curry County. [T. 40 S., R. 14 W.] Chetkodeposit. ( Silliman, 

1873, p. 129.) Priceite, soft, chalky. Bulk density 2.262-2.298.

Parent rock and weathered products

68. Idaho. Utah County. Miocene. NWiNWi sec. 33, T. 40 N., R. 3 W.,

about 4 miles northeast of town of Troy. ( Ponder and Keller, I960, p. 44, 

45, 47-50, 54, 55, 57, 58.) Granodiorite gneiss. Mineralogy, microscopic description. Index and geologic map. Chemical analysis recalculated to relative number of cations. [For analysis of residual clay, see 

sample 140, group B.]

69, 70. Oregon. Curry County. Sees. 19, 30, T. 37 S., R. 13 W., 17 miles, by

road, east of town of Gold Beach. Red Flats nickel deposit. ( Hundhausen, 

McWUliams, and Banning, 1954, p. 1, 2, 4, 6, 11, 14, figs. 1. 2.) 

Serpentine, nickeliferous, weathered. Mineralogy. Index maps. Possible 

use: Source of ferronickel. [For analyses of weathered products see samples 

SB, 89, group D.]

71-73. Oregon. Douglas County. Sec. 17, T. 30 S., R. 6 W., about 5 miles 

northwest of town of Riddle, Nickel Mountain. Owner, E. F. Adams. 

( Pecora and Hobbs, 1942, p. 205, 206, 211-213, 215, 222, 223, 225, 

226, pis. 37, 38.) Index and geologic maps.

71. Analyst, F. W. Clarke. Record 814. (Clarke, 1888, p. 485; Austin, 

1894, 1895. 1896, p. 176, 177.) Olivine.

72. Analyst, F. W. Clarke. Record 811. (Clarke, 1888, p. 483. 485.) 

Peridotite.

73. Late Tertiary. Analyst, Dr. Hood. (Blake, 1883, p. 403. 404; 

Austin, 1894, 1895. 1896. p. 174. 175. 178, 180, 190-193.) 

Hydrated nickel magnesian silicate. Bulk density 2.20-2.58. 

Mineralogy, thin-section description.

74, 75. Oregon. Douglas County. [T. 30 S., R. 6 W.], near Riddle, Nickel

Mountain. Hanna Ore Co. pit. Analysts, P. L. D. Elm ore, J. I. Dinnin, 

S. D. Sotts, M. D. Mack; rapid rock analysis. ( Hotz, 1964, p. 356, 357, 

362-364,368,369,371,375-377.) General mineralogy. Index map. 

Graphs of molecular proportions of constituents. [For other analyses of 

weathered products, see samples 91-93, group D.]

74. Peridotite, fresh. Composite sample. Bulk density 3.35. Nlggli 

values and modes.

75. Possibly post-Miocene to Pleistocene. Peridotite, weathered; contains 

veins of quartz and garnierite; depth 8-10 ft.

76. Oregon. Douglas County. [T. 30 S.. R. 6 W.], near Riddle. Nickel

Mountain deposit. (Hundhausen, McWUliams, and Banning, 1954, p. J5, 

14, pi. 1, fig. 1.) Serpentine, nickeliferous. Index map. Possible use: 

Source of ferronickel.

77. Oregon. Douglas County. [T. 30 S., R. 6 W.], Riddle. Nickel Mountain. 

( Fursman, 1962, p. 6, J.) Nickel-bearing rock.

Parent rock and weathered products Continued

78-80. Oregon. Josephine County. [T. 38 S., R. 8 W., southwest of town of

Selma], Eight Dollar Mountain. Analysts, P. L. D. Qmore, J. I. Dinnin, 

S. D. Bolts, M. D. Mack; rapid rock analysis. Spectrographic analyst, 

SolBerman. ( Hotz, 1964, p. 356, 357, 362-364, 367-369, 371. 372- 

374,388.) General mineralogy. Index map. Graph of molecular proportions of constituents; graph of trace element content. Possible use: 

Probably none. [For other analyses of weathered products, see samples 

96-100. group D.]

78. Peridotite, fresh. Bulk density 3.20. Niggli values and modes.

79. Possibly post-Miocene to Pleistocene. Soil, yellowish-orange; contains 

weathered peridotite fragments; depth 2.8-5.5 ft. X-ray diffractometer patterns of clay fractions.

80. Possibly post-Miocene to Pleistocene. Soil, reddish-yellow with 

streaks of red; depth 1-2.8 ft.

81-83. Oregon. Josephine County. [T. 38, 39 S.. R. 9 W.] ( Melville, 1892, 

p. 509-511.) Josephinite, greenish-black; occurring as pebbles in placer 

gravel.

81. (Clarke, 1903, p. 10.) Mineralogy. Bulk denisty 6.204.

82. Insoluble portion of sample 81.

83. Soluble portion of sample 81.

84. Oregon. Josephine County. West corner tec. 26, T. 39 S., R. 8 W., at 

intersection of Sucker Creek and Oregon Cave roads. Sample 9930. 

( Robinson, Edgington, and Byers, 1935, p. 8, jjJ.) Serpentinelike rock. 

[For analysis of weathered product, see sample 108, group D.]

85. Oregon. Marion County. Miocene, Salem Hills Basalt or Stay ton Lavas.

NWi sec. 2, T. 9 S., R. 3 W., 7-10 miles south of town of Salem, Salem 

Hills area. State Highway Dept. rock quarry. Analyst, under direction of 

S. S. Goldich; spectrographic analyst, T. C. Matthews. Lab. No. R2150i 

( Corcoran and Libbey, 1956. p. 1, 2, 3, 6, .13, 14, pi. 1.) Presh basalt. 

Index and geologic maps.

86. Oregon. Wasco County. [T. 1 N. t R. 13 E.], near The Dalles, Rockland 

Ridge. (Schneider, 1888, p. 236, 237.) Augite andesite. Mineralogy. 

[For analysis of weathered product, see sample 113, group D.]

87. Washington. Kittitas County. Late Miocene and early Pliocene, Yakima 

Basalt. [Probably] T. 19 N., R. 15 E., about 4 miles southwest of 

Clealum, [CleEhim], Clealum Ridge. Analyst, George Steiger. (Smith, 

1904, p. 2-) Basalt, dark-gray, aphanitic; about 1.000-2.000 ft thick. 

Mineralogy, thin-section description. Index and geologic maps, geologic 

sections, columnar section. [For analysis of residual soil from similar 

parent rock, see sample 148, group D.]

88. Washington. Walla Walla County. Middle Miocene through early Pliocene, 

Columbia River Group. [T. 7 N., R. 36 E.], town of Walla Walla. Analyst, G. P. Merrill. (Russell, 1901a.p.44.) Basalt, representative sample.
262 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

GRAPHICAL SUMMARIES

The analyses assembled in this report may be 

considered primarily as individual pieces of information about the composition of particular sedimentary rocks in particular places. Also, they may 

be thought of collectively as groups of data that tend 

to cluster around various modal points of composition corresponding to rocks of different lithologic 

types, geologic ages, economic uses, and so forth. 

Collectively, then, the data of the analyses need to 

be summarized if any clustering of points or systematic relations that may exist are to be recognized.

Many of the samples had been collected for analysis because the rock was, or was thought possibly 

to be, of economic value. For this reason, the resulting analyses do not represent random sampling of 

all sedimentary rocks of the report region. Yet, 

despite this systematic bias in the choice of samples, 

the compilers hope that the wide range in composition of the samples may tend to offset the purely 

local peculiarities in the data and provide information of more regional interest and utility.

AREAL DISTRIBUTION

Figures 3 and 4 are maps showing the location of 

analyzed samples according to the rock-classification 

groups. The map of Alaska and the map of Idaho, 

Oregon, and Washington show the general distribution of the rocks. The plotting of the data is crowded 

in some areas, and, accordingly, the symbols may 

indicate more than one sample; in addition, where 

symbols are closely spaced on the map, some of them 

are plotted in the county adjacent to their true location. The maps, thus, are the most useful in showing 

only the general location of the area in which 

samples were taken. More detailed locations are 

given in the descriptive notes accompanying the 

tables of analyses.

The data on the geographic distribution of samples 

that contain more than 75 percent silica show the 

kinds of consideration that the maps suggest. Also, 

inference can be made either that the report region 

probably contains relatively little highly siliceous 

material or that the economic demand for such a 

resource has been low. The maps do not provide a 

basis for determining which alternative is pertinent, 

but the reader can be aware that the question exists.

DISTRIBUTION BY COMPOSITION

Figures 5-24 show how the analyses plot within 

the fields of the triangular diagram that is the basis 

for the classification system. The points are plotted 

by computer method. In some of the more crowded 

areas of the diagrams, samples tend to overlap.

These summaries emphasize again that many more 

data are available for some kinds of rocks, notably 

mixtures of siliceous and clayey materials (group B) 

and carbonate rocks (group F), than for others. 

Whether these larger amounts of data are a reflection of the economic value of such rocks or of the 

relative abundance of the rocks is not certain.

The summaries also emphasize the difficulties of 

designing a classification system that consistently 

groups sedimentary rocks according to the names 

commonly applied to them. Rocks called clay, for 

example, fall into several of the classification groups 

when classified according to their chemical composition. The inverse is also true and is perhaps more 

important. Common names for sedimentary rocks 

are not always closely related to the actual rock 

composition, nor are they always consistently applied.

Tables 25 and 26 categorize the numbers of analyses by classification group and States as an aid in 

understanding the distribution of data.

Table 27 lists, by State, the number of analyses in 

each classification group, stratigraphic unit, and 

county. The stratigraphic units are those of the 

original author and do not necessarily conform to 

the usage of the U.S. Geological Survey. The tables 

are useful for finding the available data on rocks of 

a particular composition within a reasonably restricted geographic area.

Figures 18-24 show the distribution of analyses 

according to the name applied to the rock by the 

original author and its position within the compositional diagram. The relations between the names 

applied to the rocks by the original authors and the 

classification groups are also shown, subdivided by 

States, in tables 23 and 24.

Figures 7-17 show the position on the composition 

diagram of the analyzed samples, according to geologic age. The diagrams show all the samples of a 

given age, such as Cambrian (fig. 15).

The diagrams differ considerably in their significance for generalizations regarding the bulk composition of rocks of a system. Nearly all the samples 

of Cambrian age (fig. 15), for example, are from 

Washington, whereas other States are scarcely represented. The Cambrian System in Washington 

probably consists chiefly of carbonate rocks, but the 

degree to which the available data are representative 

of this system must be judged by the user. Analyzed 

samples of Devonian age (fig. 13) are chiefly from 

Alaska. The many analyses and the fairly wide range 

in rock composition suggest that the available data 

are meaningful in reference to the bulk composition 

of rocks of the various systems.
DISTRIBUTION OF SAMPLES 263

ARCTIC

200 MILES

PACIFIC OCEAN

Symbol may indicate more than one sample

EXPLANATION

Group D 

Rocks containing clay more than 75 percent

Group A 

Rocks containing uncombined silica more than 75 percent

A

Group B

Rocks containing uncombined silica and clay, each less than 75 percent; 

uncombined silica and clay, each more than carbonate

Group C

Rocks containing uncombined silica and carbonate, each less than 75 

percent; uncombined silica and carbonate, each more than clay

Group E

Rocks containing clay and carbonate, each less than 75 percent; clay and 

carbonate, each more than uncombined silica

Group F, 

Rocks containing carbonate from 75 to 90 percent

Group F2 

Rocks containing carbonate more than 90 percent

Abbreviation Quadrangle 

name Abbreviation Quadrangle 

name Abbreviation Quadrangle 

name Abbreviation Quadrangle name

AD..................... Adak

AN.................... Anchorage

AR..................... Arctic

BS...................... Blying Sound

CA..................... Candle

CL..................... Chandler Lake

CH..................... Charley River

CR..........._........ Craig

DE..................... Dixon Entrance

FA..................... Fairbanks

HE..................... Healy

IB....................... Icy Bay

JU..................... Juneau

KE..................... Kenai

KO..................... Kodiak

LI....................... Livengood

MF..................... Mount Fairweather

MH.................... Mount Hayes

MK.................... Mount Katmai

MM.................... Mount Michelson

PE..................... Petersburg

PA..................... Port Alexander

PI....................... Pribilof Islands

KI..........._......_. Bat Islands

SA...................... Sagavanirktok

SM..................... St. Michael

SI....................... Sitka

SK......._............. Skagway

UM..................... Umnak

FIGURE 3. Sample localities for common- and mixed-rock categories, Alaska.
264 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

CANADA 317°

) * "j °'OA " i A '

-^- ~l°_oi__r_L^il_^_J

FIGURE 4. Sample localities for common-, mixed-, and
DISTRIBUTION OF SAMPLES 265

117"

*[' "

Ol i

C-i 1 O i

0 «

2 5 a ° 

w ~

" 1 EXPLANATION

I

j Symbol may indicate more than one sample

- J | Group A, common- and mixed-rock

! categories

^1 ^ | Rocks containing uncombined silica

1 A

A /

l L A- i

......i- -^i *l°Jl

A*X

^ I more than 75 percent

\ftl116° 0 50 100 MILES

V 1 , , , , 1 1

\ Group B

A\

A

, common- and mixed-rock

categories

^} Rocks containing uncombined silica and

j jjr 

k

> ^

u

i <*POfcA

'x^i0* A

I __ /°"T

* 0 ^' f~"

JP ,"*- «K ' /

V L-J

\

/ /'

( ,

/

A ,-AA °^ clay, each less than 75 percent; unA ^-.N combined silica and clay, each more 

^^ than carbonate

\^

' MIS' 

__ _ _______ ^L Group C

D

, common- and mixed-rock 

categories

N^. . Rocks containing uncombined silica and

^^, J^-- ~\ carbonate, each less than 75 percent;

__. - """""^ i uncombined silica and carbonate, ^^*~^ i 1° r l each more than clay

*>f

j Group D,

X

common- and mixed-rock

- ^ categories; includes groups Ha, Hai,

^ Hb, Hbi, Hk, Hki, special-rock catef 11 4° gory 

» / X Rocks containing clay more than 75 

>i^_ s^x-/' * percent

r

/> \ Group E, common- and mixed-rock

 * ^ -i- y categories

J S | _^ Rocks containing clay and carbonate, 

} ) ' ( each less than 75 percent; clay and /~j

/ l.

/ k_.

V ?

/ TT

' ' f] «-% r*\ carbonate, each more than uncombined

S C^- C' "^^ \ ' ^ silica

 H 1 A ° ^"^""X 1% ~| J" 1 Group F

1 o f\ ' f i r~ ~T T!

. )» \ .si i_ _^-^ >

i, common- and mixed-rock 

categories 

taining carbonate from 75 to 

90 percent

/ rf \ ( xJx-x.. ° i '"1 -~^ s-\ i 1 i A f^~" T x/^x A » S i ' I l

 * ' r~"A -' V^^v ^^ ^/" ! L^'x l ++ i Group F2 , common-rock category 

K % / { s ^ /^ ° 1 r-~ "~" -~L-~^^ S Rocks containing carbonate more than

\ 1

§0 g 5 X

w <

« Q o ^

V ( ^ ^ ^ ', ________ i A ^0*1

90 percent

_j __ _ __ __ | j J Groups G, S, P, special-rock category

__ 1 | j j 1 | ! + ____li- -^ =4 Saline materials and phosphorite

*~\ 1 ' 1 £^~ s + + + + I

"SJ'^^X- » T~* 1 ' J 1 _ -/ i ^ + VA JL

i ? i l i _]'<-. 1, L-, "" ++ J+A+ I Groups Fe, Mn, special-rock category

v JL A 1 x^ xJ^ ^ ^ ^ °^H? Jt^t 1 Iron-bearing rocks and manganesei _

"x^-v J-^^o -i r \ i ,v^, r^J o° *! ^j-^u r"! v

I A* ° 1 ? , + \^ ++ !

i ___ ___ °J__ __ ram _°U S 

bearing rocks

special-rock categories, Idaho, Oregon, and Washington.
266 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMB1NED SILICA

ZO

CLAY

CARBONATE

FIGURE 5. Distribution among compositional groups of analyses of samples from the Northwestern States and

Alaska; common-rock category.
DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

267

BO

CLAY

ZO

CARBONATE

FIGURE 6. Distribution among compositional groups of analyses of samples from the Northwestern States and

Alaska; mixed-rock category.
268 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

ZO

CLAY CARBONATE

FIGURE 7. Distribution among compositional groups of analyses of samples of Miocene, Miocene and Pliocene, 

and Miocene or later ages, from the Northwestern States and Alaska; common-rock category.
DISTRIBUTION BY COMPOSITION

UNCOMB1NED SILICA

269

ZO

ZO

80

CLAY

BO 60 ZO

CARBONATE

FIGURE 8. Distribution among compositional groups of analyses of samples of Tertiary age from the Northwestern States and Alaska; common-rock category.
270 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

60

60

CLAY BO

CARBONATE

FIGURE 9. Distribution among compositional groups of analyses of samples of Jurassic age from the Northwestern States and Alaska; common-rock category.
zo

DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

271

CLAY

ZO

CARBONATE

FIGURE 10. Distribution among compositional groups of analyses of samples of Triassic age from the Northwestern States and Alaska; common-rock category.

487-187 O - 73 - 19
272 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

CLAY CARBONATE

FIGURE 11. Distribution among compositional groups of analyses of samples of Permian age from the Northwestern States and Alaska; common-rock category.
DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

273

60

80

20

CLAY

20

CARBONATE

FIGURE 12. Distribution among compositional groups of analyses of samples of Mississippian age from the Northwestern States and Alaska; common-rock category.
274 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

CLAY CARBONATE

FIGURE 13. Distribution among compositional groups of analyses of samples of Devonian age from the Northwestern States and Alaska; common-rock category.
DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

275

4-0

CLAY

80 60

60

BO

CARBONATE

FIGURE 14. Distribution among compositional groups of analyses of samples of Silurian age from the Northwestern States and Alaska; common-rock category.
276 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMB1NED SILICA

20

CLAr

60

BO

CARBONATE

FIGURE 15. Distribution among compositional groups of analyses of samples of Cambrian age from the Northwestern States; common-rock category.
20

DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

277

60

80

CLAY

80 60

CARBONAIE

FIGURE 16. Distribution among compositional groups of analyses of samples of Precambrian age from the Northwestern States and Alaska; common-rock category.
278 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

CLAY

20

CARBONATE

FIGURE 17. Distribution among compositional groups of analyses of samples of Silurian to Permian ages, Chilliwack Group, from the Northwestern States; common-rock category.
DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

279

ZO

CLA/

60

80

CARBONATE

FIGURE 18. Distribution among compositional groups of analyses of samples of clay from the Northwestern

States and Alaska; common-rock category.
280 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

ZO

60

BO

CLAY

ZO

CARBONATE

FIGURE 19. Distribution among compositional groups of analyses of samples of diatomite from the Northwestern

States and Alaska; common-rock category.
zo

DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

281

CLAY CARBONATE

FIGURE 20. Distribution among compositional groups of analyses of samples of dolomite from the Northwestern

States and Alaska; common-rock category.
282 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SIL[CA

ZO

CLAY

ZO

CARBONATE

FIGURE 21. Distribution among compositional groups of analyses of samples of limestone from the Northwestern

States and Alaska; common-rock category.
20

DISTRIBUTION BY COMPOSITION

UNCOM6INED SILICA

283

80-)

CLAY

80

CARBONATE

FIGURE 22. Distribution among compositional groups of analyses of samples of magnesite from the Northwestern

States; common-rock category.
284 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

UNCOMBINED SILICA

CLAY

60 zo

CARBONATE

FIGURE 23. Distribution among compositional groups of analyses of samples of sand and sandstone from the

Northwestern States and Alaska; common-rock category.
DISTRIBUTION BY COMPOSITION

UNCOMBINED SILICA

285

zo

60

SO

CARBONATE

FIGURE 24. Distribution among compositional groups of analyses of samples of tuff from the Northwestern

States and Alaska; common-rock category.
286 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

TABLE 23. Number of samples of various rock types in the classification groups A-Fo, common- and mixed-rock categories

A

Classification group

B C D E Fi F2

Alaska

Argillite......................................................... ......

Chert.............................................................. 1

Clay, claystone...... ....................................... . ....

Diatomaceous earth, diatomaceous ooze. ...... 

Dolomite................... .. .. ... .

Glacial flour.......................................... ......

Graywacke..... .................................... . ......

Gypsum......................................................... ......

Limestone....... . ... .. .

Marl........................................................ .... .. ..

Mud......................................................... .. ... ..

Pumice, pumice lapilli......................... ..

Pyroclastic. ...... ...................................

Quartzite............... .................................

Sand, sandstone........................................... ......

Shale....................................................... .

Tuff, tuff-breccia................................... ...... ......

Volcanic ash.......................................... ...... .....

Total............................................... ... 1

6

20 

1

1

1 

1

2 

18

1 

2 

25 

9 

5 

2

94

1

3

1

1

6

3

4

""5

1

7 

1 

1

22

2 ...... ........

1 ...... 1

2 15

5 ...... ........

11 67 768 

...... ...... 2

3 2 1 

1 ...... ........

1 ...... ........

24 71 787

Idaho

Alluvium......................................... ....

Argillite......................... .....

Clay......................................................... .... ......

Dolomite............. ..

Hydromagnesite.. ............................... . Kaolin........................................ ........

Limestone................................ ....

Marble........................................ . . Marl...................................... . ..

Phosphorite................................................... ......

Pumice...................... .. ..

Quartzite....................................................... 4

Sand, sandstone........................................ 2

Shale........................................................ .. ... ..

Silt, siltstone........ .......................... ... .... .... ......

Tuff................................................ ... ..

Volcanic ash........... ...................... ... ..

Total........................................ 6

1 

6 

16

3 

3 

1 

2 

12 

3 

4

4

55

.... 

2

4

9

30

3

10

43

1 2 9 

1 ...... ........

4 12 57 

...... ...... 5

1 ........

...... ...... 1

13 1 ........

...... ...... 4

19 16 76

Oregon

Argillite...................................................

Chert........................................... ... . l

Diatomite................................... .. .. 14

Garnierite... ..................................... . 3

Genthite...... ........................................... .. ...

Kaolin........................................... ...

Laterite........ .................. ......... . .

2

14 

13

6 

1

9

2 

4

1

27

1 

7

...... ...... 1

1 ...... ........

Rock type

Classification group

A B C D E Fi F2

Oregon Continued

Marble....................................

Nickel silicate, nickel-beari

Soil..........................................

Tuff..........................................

Volcanic cinder

1

...................... ...... 4

...................... ...... 17

2

...................... 1 ......

...................... ...... 1

...................... ...... 37

...................... ...... 5

4

Weathered igneous rock, weathered 

products..................................................... ...... 4 ......

Total............................

Argillite..................................

Clay

Marble....................................

Marl.........................................

Mud.........................................

Sand, sandstone.....................

Shale........................................

Soil..........................................

Tufa.........................................

Tuff..........................................

Total..........................

....... .............. 20 122

Washington

. . . ...... ...... ...... 1 

. . ...... ... ...... 1

...................... ...... 70

....................... 1 ......

. ...... ............ 14 5

...................... ...... 1

...................... 2 2

...................... ...... 7

1

. .. ............... 12 7

. .................. ...... 29 

...................... ...... 2

. . . ............. ...... 2

... ......... ...... 3

...................... 29 131

5

1

55

51

15

1

123

12 16

2 ...... ......

2 ...... ......

6 ...... ......

2 ...... ......

7 ...... ......

1

1 ...... ......

1 ...... ......

56 14 16

2 ...... ......

83 ...... ......

4 152

6 ...... ......

1 ......

3 33 194 

2 ...... ......

...... ...... 31

...... ...... 6

1 ...... ......

1 ......

8 ...... ......

1 ......

lo ......

2 ......

1

...... ...... 1

1 ...... ......

119 56 384

99 

1

1

102

685

928

217 

83 

1

10

1,924

Total for four States

Oregon........ .............................

Washington..... .......................

Total............................

ABC

............. 1 94 6

............. 6 55 9

.............. 20 122 5

.............. 29 131 123

........... 56 402 143

D

22 

43 

56 

119

240

E Fi Fa

24 71 787 

19 16 76 

14 16 102 

56 384 1,924

113 487 2,889

Total

1,005 

224 

335 

2,766

4,330
DISTRIBUTION OF SAMPLES 287

TABLE 24. Number of samples of various rock types in the classification groups of the special-rock

category

Shale.........................................................................

Tasmanite... .............................................................

Total.................... ........ ..................................

Clay...........................................................................

Phosphorite.............................................................

Rock salt.. ........ .......................................................

Total....... .......................................... ............

Clay.. ......................................................................

Gibbsitic float, nodule.... ......................................

Priceite......................... ............................................

Saline materials:

Soil............................................................................

Weathered igneous rocks, weathered 

products...............................................................

Total........... .................................................

Basalt......................................................................

Bementite....... ..........................................................

Clay..........................................................................

Coal, coal ash.........................................................

Gypsite, gypsum............................................. .. . ..

Hausmannite................. ..........................................

Hematite..................................................................

Kaolin......................................................................

Laterite....................................................................

Limonite.. .......................................................... ......

Manganese................................. ...... ..............

Mud... ........................................ . .... ..... . ..

Neotocite ..................................................................

Saline materials:

Shale............................................ . .... .........

Total........................................... ..... .

Hk

Alaska........................................

Idaho.......................................................... 13

Oregon... .................................................... 35

Washington................................................ 69

Total................................................ 117

Classification group

Hk Hki Ha Hai Hb Hbi Fe Mn

Alaska

1

2

4

1 ...... ...... ...... 2 4

Idaho

13

4

2

13 ...... ...... ...... ...... ...... ...... 6

Oregon

6 3

1

30 ...... 27 4 2

1 ...... 10 4 16 51 3

2

1 ...... ...... ...... ...... ...... 16

3 ...... 1

5 1 ...... 9 5

1 ...... 15

3

1

1

35 ...... 43 9 27 63 43 2

Washington

4

1

66 3 44 1

2

1

1 46

2

8

6

1

9

1

3

3 ...... ...... 1

69 3 46 2 ...... 1 66 16

Total for four States

Hki Ha Hai Hb Hbi Fe Mn G

1 ...... ...... ...... 2 4

6 2

43 9 27 63 43 2

3 46 2 ...... 1 66 16 12

3 90 11 27 64 111 28 14

G S P M

1

11

2

7

3

24

1

1

1

1

2

480

1

2 1 480 4

2

2

4

10

1

1

9

1

1

2

15

23 ...... 25

2

22

9

3

1

1

2

5

1

13

1

7

4

12 35 ...... 24

S P M Total

24 31

1 480 4 506

23 ...... 25 270

35 ...... 24 274

59 480 77 1,081
288 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

TABLE 25. Distribution of samples by State, category, and

group

Group

Common-rock category

A 

B 

C 

D

E 

Fi

Fz

Silica.....................................................

Clay.......................................................

Higher carbonate................................

Total..................................................

1

...... 83

6

...... 15

...... 18

...... 70

...... 787

...... 980

6

45 

9 

34 

17 

15 

75

201

16 

84 

4 

40 

14 

16 

102

276

29 

129 

103 

103 

50 

380 

1,924

2,718

52 

341 

122 

192 

99 

481 

2,888

4,175

Mixed-rock category

A 

B 

C 

D

E 

F,

Silica......................................................

Clay.......................................................

Higher carbonate................................

Total..................................................

11

7

6

1

..... 25

10

9 

2 

1 

1

23

4 

38 

1 

16

59

'""i

20 

16 

6 

4

48

4 

61 

21 

48 

14 

6 

1

155

Special-rock category

Hk 

Hki 

Ha 

Hai 

Hb 

Hbi 

Fe 

Mn 

G 

S 

P 

M Miscellaneous:

Igneous rock and weathered 

products....................................

Total......................................

1

2

4

..... 11

...... 11

2

..... 31

13

......

2 

1 

480

3 

1

506

35

43 

9 

27 

63 

43 

2

"23

2

6

17

270

69 

3 

46 

2 

......

66 

16 

12 

35

22

2

274

117 

3 

90 

11 

27 

64 

111 

28 

14 

59 

480

35 

11 

2 

9

20

1,081

TABLE 26. Distribution of 5,411 samples by State, category, 

and group

State

Alaska..................... 1,036

Idaho...................... 730

Oregon.................... 605

Washington............ 3,040

Category

Common-rock................................... 4,175

Mixed-rock........................................ 155

Special-rock....................................... 1,081

Group

A.

B.. 

C. 

D. 

E..

56

402

143

240

113

Hk.. 

Hki. 

Ha...

487

,889

117

3

90

Hai.. 

Hb.. 

Hbi. 

Fe... 

Mn..

11

27

64

111

28

G.. 

S... 

P.. 

M.

14

59

480

77
CUMULATIVE FREQUENCY CURVES 289

The geologist or geochemist interested in estimating the average composition of the earth's materials 

probably cannot find the gross averages of thousands 

of published analyses of unusually pure limestones 

particularly useful for his purpose. Careful observance, however, of the areal distribution and thickness of different rock types and of different geologic 

formations represented by the published analyses 

should enable the geologist or geochemist to make 

closer estimates of average compositions than most 

of those now available, or at least enable him to 

discover which rock types and formations are most 

in need of new analytical data.

Several noteworthy questions and facts about 

sedimentary rocks resulted from the compilation. 

One possibly significant relation became apparent 

when the analyses of this report were plotted on 

triangular diagrams (figs. 5-24). A very large proportion of all the analyses fall not within the central 

region of the diagram, as might reasonably be expected, but within about 10 percent of the exterior 

boundaries of the triangle. This means that many 

samples of uncombined silica and clay mixtures 

contain very little carbonate, and that many samples 

of clay and carbonate mixtures contain very little 

uncombined silica, and so forth. Such relationships 

are probably not an artifact resulting from systematic bias in the choice of analyzed samples or in the 

classification system used; rather, they are largely 

results of natural sedimentation processes. Thus, 

environments favorable for deposition of sand are

unfavorable for the deposition of clay and carbonates, and vice versa. It follows that the physicochemical factors of sand, clay, and carbonate 

depositional environments would appear to be unrelated. If so, the data of this compilation stand as 

a tribute to the good judgment of geologists who, 

years ago, adopted the familiar sand-clay-carbonate 

diagram. The validity of these relations will be substantiated or weakened as the compilation of rock 

analyses from other regions progresses.

CUMULATIVE FREQUENCY CURVES

Figures 25-32 are cumulative frequency curves 

of the constituents determined in all samples of each 

classification group. These curves are drawn on 

semilog coordinates in order to show on one diagram 

the wide range in abundance of some of the constituents. Note that the less abundant constituents generally vary proportionally much more widely than do 

the more abundant major constituents.

Many of the constituents, particularly those determined in only a few samples, are distributed very 

irregularly, and several of them do not fit very well 

into either normal or log-normal distribution. Nevertheless, when comparisons of the kind just mentioned 

are made for many of the constituents, most of the 

more abundant major ones are found to have approximately normal distribution, and many of the 

minor constituents of intermediate and lesser abundance show a tendency toward log-normal distribution.

487-187 O- 73 - 20
290 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

001

WEIGHT PERCENT

A

FIGURE 25 (above and facing page). Group A. Cumulative frequency curves showing the proportion of all analyses in 

the common-rock category that contain as much as, but not more than, the indicated percentage of various constituents. 

For example, the line marked "AlaOs" in part A, above, indicates that all group A analyses in which AlaOs was determined (50 analyses) contain 8.5 percent or less of this constituent and that half of these analyses contain 2.2 percent

I CD

5 5

Si

(f> ~i

LJ <

VVfJGHS PtKCENT

A

FIGURE 26 (above and facing page). Group B. Cumulative frequency curves showing the proportion of all analyses in the 

common-rock category that contain as much as, but not more than, the indicated percentage of various constituents. 

For example, the line marked FeaOs in part A, above, indicates that all group B analyses in which FeaOs was determined (299 analyses) contain 27 percent or less of this constituent and that half of these analyses contain 2.8 percent
CUMULATIVE FREQUENCY CURVES 291

Class intervals 

. -_-_ Percent 

Total H,O

H2 ONa2 O

K2 0

CO,

SO,

WEIGHT PERCENT 

B

or less A^Os. Constituents determined in fewer than 10 percent of the analyses were not plotted. Total number of determinations made of each constituent is given in parentheses on each line. Determinations of SOa in group A samples 

were not plotted because 87 percent of the values fall between 0 and 0.7 percent.

Class intervals 

Percent

: Na2O

K,O

Total H2O

SO, 

Organic

0.87

.70

1.50

1.70

.33

1.40

.30

1.80

or less Fe2Oa. The lower limit of the lowest class interval for all constituents is zero. Constituents determined in fewer 

than 10 percent of the analyses were not plotted. Total number of determinations made of each constituent is given in 

parentheses on each line.
292 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Class intervals L j 

Percent 

5.90 

1.2

.55 ' :

SiO, 

A1 2 O, 

Fe 2O, 

FeO .61

FIGURE 27 (above and facing page). Group C. Cumulative frequency curves showing the proportion of all analyses in the 

common-rock category that contain as much as, but not more than, the indicated percentage of various constituents. For 

example, the line marked MgO in part B, above, indicates that all group C analyses in which MgO was determined (118 

analyses) contain 39 percent or less of this constituent and that half of these analyses contain 3.1 percent or less MgO.

WEIGHT PERCENT 

A

FIGURE 28 (above and facing page). Groups D, Hk, Ha. Cumulative frequency curves showing the proportion of analyses 

in the common-rock category and some analyses in the special-rock category that contain as much as, but not more than, 

the indicated percentage of various constituents. For example, the line marked CaO in part A, above, indicates that 

groups D, Hk, Ha analyses in which CaO was determined (208 analyses) contain 13 percent or less of this constituent
ex 

ff

w pj 

£± 3 g-0-

i § ff 

g' ff*

g^'B*

S S K 

g ? S,

I?*

rr> § rr>

O | S 

Hs Ct;

» C 3 

S » * S-&&

	en en O rt> O ex w 

3 n> w ct- o 

ct- rt> o 

S-' ^ 3

III

^ 2

H-. ^ ^

w M. f-i

B B w

s Ig

s-«l 

?fs

^ 3 -

rt> rt>

3 i-1 w

£ O W

rt> H3 O 

w n> So

(D t-j /-j w o y

2 § H5*

rt> o ffi 

SO M, ^-

Efl

Pg|

E, B.

V! ctIS, S ?

« o"

3 ^ 

o ">

8-8-

*Ci Ji, o' so'

c-t- W 

CtW

^1

£S

is.

w W*

3 o

C 4

5 P sr 13

4 O

o §

CUMULATIVE FREQUENCY OF ANALYSES IN WHICH CONSTITUENT WAS 

DETERMINED, IN PERCENTAGE OF TOTAL NUMBER OF DETERMINATIONS

N fD O H

rt> SO H» £2

" ° & £? <"

J» K » O*

3 3 $o ^

& rt> g rt>

o ' £ *

. | 8,

g. p S a 

' g-. p 5

« O i 

§ S-'S 

o U S Hs o W

O P4 » 

of w

-. H w M O *-"

« ^1

3 s 5

 § £. w

B o P 

3 H» S

"E & o

rt> rt> O

g 1 1 ro P c-tJJ C' s

» g g

-

CUMULATIVE FREQUENCY OF ANALYSES 

DETERMINED, IN PERCENTAGE OF TOTAL 

o °.. .. ...? o _ .

50 (D 2" g 5. a-'

rt> cr g

i-j c-- >

o C 4

§ § g.

Ct- Ct- £

O ~- ">

S, w cu

a IS. 5'

ro «

-o

fa fa 

H, 4 3

M (D

fcj 3 *-*

ff- ° 

5" » t3

|S 5

3g W 3 

fD fD

rt> O 3 

3 3 ct294 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

WEIGHT PERCENT

A

FIGURE 29 (above and facing page). Group D (here restricted to clay samples containing less than 25 percent alumina 

and (or) less than 10 percent iron). Cumulative frequency curves showing the proportion of analyses in the commonrock category that contain as much as, but not more than, the indicated percentage of various constituents. For example, the line marked Na2O in part B, above, indicates that the group D analyses of clay samples containing less

WEIGHT PERCENT 

A

FIGURE 30 (above and facing page). Group E. Cumulative frequency curves showing the proportion of all analyses in the 

common-rock category that contain as much as, but not more than, the indicated percentage of various constituents. 

For example, the line marked COo in part B, above, indicates that all group E analyses in which CO2 was determined 

(44 analyses) contain 35 percent or less of this constituent and that half of these analyses contain 22 percent or less 

C(>2. The lower limit of the lowest class interval for all constituents is zero. Constituents determined in fewer than 10
CUMULATIVE FREQUENCY CURVES 295

LLJ < :

>o 50!

<

LL. LL! 

O O

40-

^-* £- 

Z tU

UJ O 30 ,

-) Q, JU

lii Q.

£z

than 25 percent alumina and (or) less than 10 percent iron in which Na2O was determined (43 analyses) contain 5.1 

percent or less of this constituent and that half of these analyses contain 1.1 percent or less Na2O. The lower limit of 

the lowest class interval for all constituents is zero. Constituents determined in fewer than 10 percent of the analyses 

were not plotted. Total number of determinations made of each constituent is given in parentheses on each line.

WEIGHT PERCENT

B

percent of the analyses were not plotted. Total number of determinations made of each constituent is given in parentheses on each line. Determinations of H2O , P2Os, and organic content in group E samples were not plotted: H2O because 94 percent of the values fall between zero and 4.2 percent; P2 Os because 96 percent of the values fall between 

zero and 0.86 percent; and organic content because 94 percent of the values fall between zero and 1.1 percent.
296 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

K 80 !

X CD

5 5

So

WHGH1 PERCENT 

A

FIGURE 31 (above and facing page). Group FI. Cumulative frequency curves showing the proportion of all analyses in the 

common-rock category that contain as much as, but not more than, the indicated percentage of various constituents. 

For example, the line marked MgO in part A, above, indicates that all group FI analyses in which MgO was determined (458 analyses) contain 51 percent or less of this constituent and that half of these analyses contain 43 percent

001 0.05

WEIGHT PERCENT 

A

FIGURE 32 (above and facing page). Group F2. Cumulative frequency curves showing the proportion of all analyses in the 

common-rock category that contain as much as, but not more than, the indicated percentage of various constituents. 

For example, the line marked Si02 in part A, above, indicates that all group Fo analyses in which Si02 was determined (2,829 analyses) contain 9.8 percent or less of this constituent and that half of these analyses contain 1.7 per-
CUMULATIVE FREQUENCY CURVES 297

50 100

WEIGHT PERCENT 

B

or less MgO. The lower limit of the lowest class interval for all constituents is zero. Constituents determined in fewer 

than 10 percent of the analyses were not plotted. Total number of determinations made of each constituent is given in 

parentheses on each line. Determinations of total E^O in group FI samples were not plotted because 98 percent of the 

values fall between zero and 1.5 percent.

WEIGHT PERCENT 

B

cent or less SiO2. The lower limit of the lowest class interval for all constituents is zero. Constituents determined in 

fewer than 10 percent of the analyses were not plotted. Total number of determinations made of each constituent is 

given in parentheses on each line.
298 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

with stratigraphic information listed] classification Only samples [Seexplanation of and for23groups. are p.

Classification Totals group 

Quadrangle o . 

,^..M=T?« ,« Stratigraphic unit (Alaska) county Age or 

tiSi Hkiaa FiHkbbi FeSABCD EMnGPOreg., Wash)(Idaho, 2r 

county

Alaska

a « « « « - « vo ^ «

ts

: mo : : :

(S ^ OO P"! O

 * ts

, '^N^^-N/ ^^V-<-

I-M- ; i-

................... .... ........

-

ts

 _

:<*

*~< t

,_, ,_

Not given......... Anchorage..... Holocene...... ....................... ................... ................ . .............. 

Sound. Blying . 

Candle. .Kenai.............................. 

Kodiak . .

Icy Bay.................... ....... Mount Katmai . Mount Hayes.... ............ .

St. Michael. . .

Umnak ....................... .

Adak Hnlncenp- Hn

Pribilof Islands. Pleistocene. . 

Healv Pleistocene dn...

Rat Islands. . . . Fairbanks....................... Silts.... Yukon Clay Kowakr .

$&

ii B-S

l£ 

g

'5 

J

£

«

9 

C

Umnak................ ..... 

Vnlcanics ..donkmnk ....... .... Rat Islands.. Formation......... Patterson Point........... .

doOiiatprnarv- NntHvpn 

Tertiary. 

Palencene Fnrmation. Anchoraee......... Chickalonn ........ 

(S

i 

>

8K

6 

1

I

|

tOJ H

Umnak........ ................... . 

Tertiarv Fnrmatinn RtIslands Amchitka or

-

earlier. 

Anchnraoe Cretacenns Nntoiven 

,_

-

-

Wainwright.................... . 

Formation . Anchorage . Matanuska . 

Chandler Cretaceous- Noteiven Lake

cs

Howard Pass................. Jurassic. . 

Killik River...... . .

Anchoraee Jurassic do

c*

ts

(S :

3

/-

V

~*«»

^ «-i <n vo (S (S o

S £

ts

«_

m

Healy............................. . Chandler Lake........ unitoverlying Unnamed ...... 

Shublik Formation. 

Howard Pass....... ......... 

Healv Triassic Nntoiven 

,_

"

-

Port Alexander............. 

Sadlerochit Arctic...... undifferentiated Triassic- Partof.................. . ...... 

Shublik Formations. Permian. and

Not eiven.... PortAlexander Permian ............... .......... ................... .

-ts v-*v-*at 

oc

unit chery between Howard Pass.. Unnamed Cretaceous- . ......... 

Okpikruak Lisburne Group and Mississippian. 

Formation. 

Chandler Lake. ... Lisburne Group..... . Permian- . 

Mountichaelson....... Pennsylvanian- . 

Sagavanirktok ...... Mississippian. . 

Craie... Noteiven Deonian ....................... ................ ....... .....

ts

*

T-"

Healy.... .

Petersburg .............. .

Craie Devonian- Walesfiroun ......

OC

<r

£

V

 ^

*

Ordovician. 

Healv eiven Devnnian- Nt

ts

(S *

'ts ^

oo

T-«

ts

Paleozoic. 

Craie. Silurian do......... ............ ........ ........ 

ts

Dixon Entrance. ... 

Juneau............................ Petersburg .................. . Port Alexander............. 

Craie.. Silurian- ..........do.... ... .... ........................ ....

ts

Ordovician. 

Healv Pre-Devonian do.......................... ...

r-

<N

0

£ 0

c c

.i

1

&

ts'tN ts

Sitka............ .................... .

Skagway ................. . 

Schist... Fairbanks Paleoznic- BirchCreek ........... ......

Precambrian. 

.........Tindir Charley River..... . Precambrian 1Group....... . ......
DISTRIBUTION OF SAMPLES 299

(v| ^ ^ i-ii-iTl'^ o oo ^ *-" ro TH <-( co ts ^ vovo 

co rN 1-1 TH

 

Holocene given.............. Not Bannock...................... Nez Perce............. .........

cs

,_

\

c

U

c

1

2

PU

c^

^

a

c

> i.

ei 

6

rt

Bonneville.................

-

1

1

C 

CO

C ^

_rt t

Lake Formation............................... SaltLake................... Bear 

Bonneville...................... Cassia.............................

Miocene. 

Miocene. aiven.. Kootenai.... .... .. ...Not ................................... ............. 

ct0

TT- M

r.

V

ve

(N

ci-l

cLatah................ ............. Formation.... Benewah... Latah.................................. ...................... Kootenai...................... Latah. Lewis................ .......... . 

Miocene- Challis Volcanics........ Custer............................ .......... .................... 

rH

Oligocene-Eocene. 

Tertiarv.... ...Not Eiven.... .. do.... ................. ............................. .............. ........ River Formation.... Bonneville. . Cretaceous .Bear ................ ......... .............. Limestone.................................... Dranev. ....do....... ..

Limestone....... Peterson do...... .......... ................. ........ 

c

Lewis........................ Jurassic. .....Not javen.......... ......................................... ............. .....

C

Twin CreekLimestone. Lake.. Bear.

c

|

'S1 

c 

Z

H

f^

O\ i

c

Nez Perce......................

* « tS»

M

SfSi0

-"-1

CO

,

r 

r

vi

TH

^

CO

oc

fN

CO

r-

^,

00

f " 

i-c t- i-i CO ^CST-IT-I^^I vo VI {St-tSCJi-iCO

fS

"* *

crt

-

oc

Bridge Martin Formation....... ..do...... ............. ......................... 

.Phosphoria Formation.. Caribou.......................... Permian.... ................. ............ ....... Phosphatic Shale Member. RetortClark............................... 

Meade Pakhosphatic Bannock......................... 

Shale Member. 

Lake...................... BearBingham ............ Bonneville ..... 

Caribou................... ....

 S

a 

U

Teton........ ........... .

Permian- Wells Formation.. Cassia...... 

Pennsylvaman. 

Mississippian. .Notgiven............ rto............ 

i

0

C

Bonneviile Madison Limestone.................................. 

4 i

:,

0 »

sa

i

I

I

q

uevonian. View .....Grand Dolomite do.

C 

T

Jefferson Dolomite... . .....

c T:

Silurian ..Laketown Dolomite......

c B c c

Ordovician..___....Saturday Mountain Formation ....Kinnikinic Ouartzite ....

Swan PeakQuartzite................. Caribou 1.......... Cambnan....................Gold CreekQuartzite.......................... Bonner 1

Kootenai........................ ,......

5.

i

Oneida................ ......

TTPrecambrian ........Striped Peak Formation.............. Bonner......................... ............ 

Shoshone..... ................... ......

Wallace Formation........................ Bonner

Shoshone....... 2 ................. ......

Regis Formation....... .. St. do i...... 

iFormation..................................... Revett Bonner.. 

Shoshone.... 1.................... ...... 

Burke Formation................ doi.... ... 

Formation................................. Prichard Bonner 1.

(N

1

§

1 

£

«-««

Series..-... Orofino Clearwater

I

,3 

|

#

«»

pJ.s U

a 

§

Is

B<
300 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

73

s

O 

O

SS

"I 

53

'I

1

S

II

8i°!

!!!

a aO

i-lfS IO

 CO <-H {S CO O <S<-H I-H m I-H tS I-H roi-Jro i-i OrOi-irOi-H I-H

- 00

Harney... ..... ........... Klamath......................... 3...... 

Lake

1 

i

"c

X

«

Pleistocene. 

Pleistocene- ..do... Clackamas.............. .......................... ......................... ...............

,

^

Pliocene. 

Pleistocene- do...Columbia.................................. ........ 

n

Miocene. Doueias ....

10

Josephine.... ...... ................... Quaternary- ..........do.............. Baker.......... ....................................... ............. .

Tertiary. Deschutes.. 1....... ...... 

Klamath ^

10

Maiheur 1................ ......

Ph'ocene........... ..do... Clackamas.................... ....................... .......................... ..

-

8

Ic

CX C t 

es c

fc4U

1

1

£ "0

i

Formation............ Deschutes Deschutes 5 ............... .................. ..... Ph'ocene- Notgiven........ Clackamas..... ............ .................

««*

10 CO

00

tMiocene. Columbia..... .................. ....... Marion ....

!rt

P

C3

I 

11

Washington. . ......... ........ 

Payette Formation.... Harnev.... 2A....... .......... ........ ............... 

o

Malheur... ... . 83

civen..... Miocene ...........Not Columbia....... ............ ........... .................... ................ .. 31 II £0

pq

J0

£

1

"« 

t.

I

i 

Lincoln. . Mudstone.... Nye ]........ ............ ........... ..... 

overlying unit ..........do.......................... Unnamed ]...... 

Formation. Astoria 

..........do.......................... Astoria Formation.... ..................... ........ civen...... Benton................ NotMiocene latror........ ........ ....... ............. ............. 

VC

^

,

CO

^

VC

1 

f

- oc 

ff XI

Clackamas....... .............. Clatsop.......... .............. Columbia...... ................. Douglas i........... Jackson.... i;..... ............... Lane... ]........................... Marion.... ..... ....... Yamhill .......... Wheeler.................. Formation........ JohnDay Miocene- * ....................... ........ 

Oh'gocene. 

Oh'gocene... given.... ..... ...Not Lane....... ;.................... ........ ........... .......... ...... >

Columbia.... Oh'gocene- Shale........ Keasey ]...... ....... ....................... ................... 

f>

 .. .Wilbur TuffLentils.................................. Eocene..... Douglas.... 1............... ....... Formation........... Pulaski Coos......... 7......... ................ ....... 

i 

0

'2 

I

§

 6

1

I

1

« ^»

Douglas..... 21..................... Yamhill.... 1............ ......... Douglas... Myrtle Group......... Cretaceous- ............... ........ ............ ........... 

Jurassic. 

civen... Jurassic................ ..NotGran.................... ..................... ....... 

Formation... Trowbridee ..........do.......................... 10............... ........ Formation............................... Snowshoe ..do........ fi..... 

Formation.. Hyde ..........do..... 9........... ......... 

f

Jurassic- rNoi given........ josepmne....... ................................... ..................... ..... 

Paleozoic. 

do.... Triassic...... Baker... .............. .................................... ....... ............ ...

Mii 

0

1

1

1-

1-

1 

£

C 

g

5 

1

0

!

t

f!

1

1

^ 

1

i * 

«

u

I

o

I 

I

H

1

-

Permian. Greenstone. 

Argillite......... Ridge..........do........................... Elkhorn ................. .......... 
DISTRIBUTION OF SAMPLES 301

-c in 

 crT^

Carboniferous......... do........ Baker........... 2........................ ............. ...... ......... ........... ....... Jackson.... 1.......... ......

 <a 

<n

c«"

1-

I.

«

n 

1

1C*.

B 

_e 

i 

c 

1

: 

» 

|

c

^a

1- 0 O\

IT

B 

H,

g

1

1

I

1

V]

a

1

sH)

1

Jackson............. do..... Paleozoic..... 116...................... ....... ........... Washington

IN IN INr-C r-ClN «D t- r-CO m r-Cr-C IN VC r-C IN «T> VO «*> <- 

t- VO IN r-C IN r-C IN

1 

tt

I

 a 

1

4

§ 

j

tt

I

5

L

1

r.

|

(^

1

i

 z

5h«

IN 

«

ir 

 3

c1

S

\

4,

6

£

i

j: M

«

4 <g

ff

0

1 

'«j

!

1

ts

E

c

1p

«

£

in 

n

10

0

4

4i

S

1G'5

a

1

« r-C r-

-

-

TfOOrt> 

&

«o°« oi-g C-a "

 -1 1 J3 S.2 

^jOcmx

Tt

B

s

1

0 - OrH

JJJ.J

rt rt O O ^ J 

WMWWWH

<f

f

i 

|

IN

.«

V

>

a

C

a 

c

i

cr

_^ 

5

4- % a !» 

n 

)K

B

1

>

I

g 

£'S 4

a

Miocene. 

Yakima..... Ouaternarv .Noteiven ].................... ....... ..................... ...... 

&

« 

^

C 

D 73

1

C

1c

5

i*C

Tl

Tertiary. 

Pliocene- RiverColumbia Snokane Groun.......... ................. 

-

Miocene. Washington..... .............. .........

'&

ir

rTt

4

"c

&

1

"

» 

i

^

£ 

a

0. 

* £

1

_n

w

<

rr01

c

S 

j

1

t

ff

!

S

c<"

c<-

4

»l 

&

I

|

£

^

cH)

W1

VC

Stevens... 1 ......................... ..... Whitman ........... ..

4

S

£ 

|

'5 

1

S 

J

6

u

£ 

fe "1

i

1

&4

C

o73

4

4 

t

5

9

rOligocene-Eocene. 

Miocene- Creek Formation.... Lewis.......... Lincoln ].............. ........... ......Eocene. Thurston......... 1............... ......

Pacific Olieocene .........Not eiven ..

\

iW

t

1

t

1 

<u 1<u

c

1

rIT

V£ 

V

I

C

§

C

*. <u e

£

C

e 

C

r-

~ 'i Pierce.............................. Eocene. .....

rWhatcom........................... 

Clallam F.ocene .....................Not eiven ..................... ........ .. 1o

c

i

in

&4

-

<N

Thurston........................ 1

Grays Harbor.... Formation......... Crescent 1....... ........ ......

Jefferson.... ............... ......

rC"

S

r1. 

£

\ 

1

1 

1

c 

1

1

S

I

£

!

^

1

S

t!

£

i c

£

4

1

lNr-CT|- f

«S r-C Tt VC r-C

rC

C 

i

1

4

?

c

£

£

Kittitas.... RosivnFormation ............. ........ ........ ........ 

C*lr-C

Chuckanut Whatcom......... Formation........ 21....... ..................... Paleocene- Swauk Formation........ Chelan........ 1................. ............ .......... ... Cretaceous. Douglas
302 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

o

I

00

A

e

CO

 5- 

I

Cl

3

H

a

o

em

§ a 

1

J

U

ii PL< ilL"

V5°8

PL,

tn

O

1

o

jo

X

£>

 3

ffi

a

X

..

X

*

£

W

Q

U

!§*

Quadrar (Alaska) or (Idaho, Oreg.

'3

3

U 

1

Stratigra;

V

Otl <c

 8

3

"c

o

1g U

1

1

*~* *G in O f*- in <s <s ^ <s ^ o vo o\ f*- <s i~* en ^* ^ 10 en ID oo en ^ oo vo^oxen O 10 oo T-H 10 *"^t"-o<s

"* *" *" <s » < t-i SJ

/ ^ ., , ^-^-^-S / * * ___ ^-V-^J ,-^v . , ___ ___ - j^-N

en

vfi t**

cs

"3

£ 

1

c

 a

c

i

n 

*

^

<s

,_,

rH ,

C,^

t--

{].

I

cs

HrH

C

il

3S5

d

Formatio: Soleduck 

.

" 

M

S

!rt

C 

c a

sis

p

^ ^5 - -

S

e

 ^

>-H

cs

Kittitas-... Snohomish... ..... 

o'S

go

Swauk Underlies FNot given.................

Clallam............. 

c

3 i 

U 3 3. y

H H U O ^

tS

1 

O

 ^

vo

^

TH f\

*H

1

*

I

S

i

PH

tcs

en

%~

en

vc

 ^

TH

M §

Formation..... Haro

.Not given.................

1

M

S 

0 

O

c

S

C

 *

1PL,

Covada Group........ Not given.................

05 «M

C

T

C

09

§

MesozoicCarbonifei Devonian. 

TriassicPermian. Permian........

5?

<s

en

en

O ve o\_

^

,H

San Juan....... Snohomish... Stevens.......... S0

o

c

S

0

Whatcom...... ..... 

Anarchist [Group] Chilliwack Group...

^

c E

IL

' ^t

Chilliwack Group...

c

TJ O

3 T

 ^

§

n

\*

'

^

i

n

in r-

^

^

-r

E ( o c o : ^s ^

43 1

^G

Chilliwack Group...

S e

cs

«TH

«'S0*

O o 

V)V.

<s

" 

<s

<s

(^ ""^ ^^

Wl«

f|stn>v)

Chilliwack Group...

h

5r

 g 3 C C _

^~

" § </ o

''5 g>= 

« a 1 1

c c

^ T

O9

rt "S< ^ rt . H 3

,£, § ,! 1 ll'g.ti c

c |c| eg ^ ?.o-i<:S -2

PH

""-

<s

Whatcom..... 

Skagit........... .... Whatcom......

Chilliwack Group..

^

;, | ! 

c 5

«

c

O

g

....Limestone inSwak 

....Not given.................

(4 3

Ad'Se mi fcfcfia

Q fcU

05 en « - »^

c

^ -

^

C Ox 

T T C

1

i

1

PH

 S

P"

*

Stevens.........

 c c "c

I

u.

tO

00

^^

"

Stevens......... ..........do........ ..... 

§ c

S |

^u3 ^3;a {-

og« ^Sg A e-S-| .^gg ^

Isl '3 (2 2 S

zCS S o <:

en

^

*

*

Ferry............. ....... Okanogan..... Pend Oreille. Stevens..........

53

PH

en

vgen^

IT

^

S

I 

M

|

6

 ^

 c

Pend Oreille. ....... 

....Not given................. ....Boulder CreekFor; Stensgar Dolomite. Dolomite....... Edna

Priest River Group

c

(4

o 'C 

o -B N C

S

rt U

CL, £
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON 303

REFERENCES CITED

Ahrens, L. H., 1957, Lognormal-type distributions, Pt. Ill: 

Geochim. et Cosmochin. Acta, v. 11, no. 4, p. 205-212.

Alien, V. T., 1946, Sedimentary and volcanic processes in the 

formation of high alumina clay: Econ. Geology, v. 41, 

no. 2, p. 124-138.

 1952, Petrographic relations in some typical bauxite 

and diaspore deposits: Geol. Soc. America Bull., v. 63, 

no. 7, p. 649-688.

Alien, V. T., Loofbourow, J. S., Jr., and Nichols, R. L., 1951, 

The Hobart Butte high-alumina clay deposit, Lane 

County, Oregon: U.S. Geol. Survey Circ. 143, lip.

Alien, V. T., and Nichols, R. L., 1946, Weathered gravels and 

sands of Oregon and Washington: Jour. Sed. Petrology, 

v. 16, no. 2, p. 52-62.

Alien, V. T., and Scheid, V. E., 1946, Nontronite in the Columbia River region: Am. Mineralogist, v. 31, nos. 5 and 

6, p. 294-312.

Allison, I. S., and Mason, R. S., 1947, Sodium salts of Lake 

County, Oregon: Oregon Dept. Geology and Mineral Industries Short Paper 17, 12 p.

Anderson, A. L., 1930, The geology and mineral resources of 

the region about Orofino, Idaho: Idaho Bur. Mines and 

Geology Pamph. 34, 63 p.

 1931, Geology and mineral resources of eastern Cassia County, Idaho: Idaho Bur. Mines and Geology Bull. 

14, 169 p.

Austin, W. L., 1896, The nickel deposits near Riddle's, Oregon, in Colorado Sci. Soc. Proc., 1894, 1895, 1896: Denver, Colo., v. 5, p. 173-196 [1898].

Bancroft, Rowland, 1911, Lead and zinc deposits in the Metaline mining district, northeastern Washington: U.S. Geol. 

Survey Bull. 470-D, p. 188-200.

 1914, The ore deposits of northeastern Washington: 

U.S. Geol. Survey Bull. 550, 215 p.

Barnes, F. F., Wahrhaftig, Clyde, Hickcox, C. A., Freedman, 

Jacob, and Hopkins, D. M., 1951, Coal investigations in 

south-central Alaska, 1944-46, with a section on Clay 

deposits on Healy Creek, by E. H. Cobb: U.S. Geol. Survey Bull. 963-E. p. 137-213.

Earth, T. F. W., 1956, Geology and petrology of the Pribilof 

Islands, Alaska: U.S. Geol. Survey Bull. 1028-F, p. 101- 

160.

Bates, P. H., Young, R. N., and Rapp, Paul, 1923, Tests of 

caustic magnesia made from magnesite from several 

sources: [U.S.] Natl. Bur. Standards Technol. Paper 

239, v. 17, p. 529-558 [1924].

Becraft, G. E., and Weis, P. L., 1963, Geology and mineral 

deposits of the Turtle Lake quadrangle, Washington: 

U.S. Geol. Survey Bull. 1131, 73 p.

Bell, G. L., 1945, Preliminary report on laterite deposits and 

occurrences in the Portland region, Oregon: U.S. Geol. 

Survey open-file report, 16 p.

Bell, K. G., 1963, Uranium in carbonate rocks: U.S. Geol. 

Survey Prof. Paper 474-A, 29 p.

Bennett, W. A. G., 1941, Preliminary report on magnesite 

deposits of Stevens County, Washington: Washington 

Div. Mines and Geology Rept. Inv. 5, 25 p.

 1943, Character and tonnage of the Turk magnesite 

deposits [Wash.] : Washington Div. Mines and Geology 

Rept. Inv. 7, 22 p.

 1944, Dolomite resources of Washington: Washington Div. Mines and Geology Rept. Inv. 13, 35 p.

 1945, Dolomite resources of Washington, Pt. 1, supp.,

Preliminary report on Okanogan, Lincoln, and Stevens 

Counties Chemical analyses: Washington Div. Mines 

and Geology Rept. Inv. 13, 16 p.

-1962, Saline lake deposits in Washington: Washington Div. Mines and Geology Bull. 49, 129 p.

Bennett, W. A. G.,Weis, P. L., and Weissenborn, A. E., 1966, 

Magnesite, in Mineral and water resources of Washington: U.S. Cong., 89th, 2d sess., Comm. Interior and Insular Affairs, Comm. Print., p. 224-231.

Bethune, G. A., 1891, Mines and minerals of Washington: 

Washington Geol. Survey, Ann. Rept. of 1st State Geologist, 122 p.

_____1892, Mines and Minerals of Washington: Washington Geol. Survey, 2d Ann. Rept. of State Geologist, 187 p.

Blake, W. P., 1883, The ores of nickel in Mineral resources 

of the United States, 1882: U.S. Geol. Survey Mineral 

Resources U.S., p. 399-420.

Boyle, A. C., 1921, [Untitled quotation] in Stearns, H. T., 

1931, Geology and water resources of the middle Deschutes River basin, Oregon: U.S. Geol. Survey WaterSupply Paper 637-D, p. 152-155.

Bray, E. E., and Stevens, N. P., 1950, Preparation of clay 

samples for infrared absorption measurement, in Infrared spectra of reference clay minerals: Am. Petroleum 

Inst. Research Proj. 49, Clay Mineral Standards Prelim. 

Rept., sec. 2, v. 146, no. 8, p. 73-105.

Breger, C. L., 1910, The salt resources of the Idaho-Wyoming 

border, with notes on the geology: U.S. Geol. Survey 

Bull. 430, p. 555-569.

Broughton, W. A., 1943, The Blewett iron deposit, Chelan 

County, Washington: Washington Div. Mines and Geology Rept. Inv. 10, 21 p.

Brown, H. C., 1901, The Pan-American Exposition at Buffalo; 

Pt. VIII, The Washington Exhibit: Eng. and Mining 

Jour., v. 72, no. 7, p. 195-196.

Buddington, A. F., 1926, Mineral investigations in southeastern Alaska: U. S. Geol. Survey Bull. 783, p. 41-62.

Buddington, A. F., and Chapin, Theodore, 1929, Geology and 

mineral deposits of southeastern Alaska: U.S. Geol. Survey Bull. 800, 398 p.

Burchard, E. F., 1912, Lime, in Nonmetals, pt. 2 of Mineral 

resources of the United States, 1911: U.S. Geol. Survey, 

p. 645-718.

_____1920, Marble resources of southeastern Alaska: U.S. 

Geol. Survey Bull. 682, 118 p.

Byers, F. M., 1959, Geology of Umnak and Bogoslof Islands, 

Aleutian Islands, Alaska: U.S. Geol. Survey Bull. 

1028-L, p. 267-369.

Calkins, F. C., 1902-1904, A contribution to the petrography 

of the John Day basin [Oreg.] : California Univ. Dept. 

Geology Bull., v. 3, no. 5, p. 109-172.

_____1905, Geology and water resources of a portion of 

east-central Washington: U.S. Geol. Survey Water-Supply Paper 118, 96 p.

Campbell, lan, and Loofbourow, J. S., Jr., 1957, Preliminary 

geologic map and sections of the magnesite belt, Stevens 

County, Washington: U.S. Geol. Survey Mineral Inv. 

Field Studies Map MF-117.

_____1962, Geology of the magnesite belt of Stevens 

County, Washington: U.S. Geol. Survey Bull. 1142-F, 

53 p.

Caro, R. J., 1949, Anaconda phosphate plant Beneficiation 

and treatment of low-grade Idaho phosphate rock: Mining Eng., v. 1, no. 8, p. 282-284.
304 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Carter, G. J., Harris, H. M., and Strandberg, K. G., 1964, 

Beneficiation studies of the Oregon coastal dune sands 

for use as glass sands: U.S. Bur. Mines Rept. Inv. 6484, 

21 p.

Carter, G. J., Kelly, H. J., and Parsons, E. W., 1962, Industrial silica deposits of the Pacific Northwest: U.S. Bur. 

Mines Inf. Circ. 8112, 57 p.

Carter, W. D., and Savage, C. N., 1964, Silica, in Mineral 

and water resources of Idaho: Idaho Bur. Mines and 

Geology Spec. Rept. 1, p. 174-181.

Chase, A. W., 1873, On the Oregon borate of lime (cryptomorphite?) : Am. Jour. Sci., 3d ser., v. 5, no. 28, p. 287-290.

Clarke, F. W., 1888, Some nickel ores from Oregon: Am. 

Jour. Sci., 3d ser., v. 35, no. 210, p. 483-488.

 1903, Mineral analyses from the laboratories of the 

United States Geological Survey, 1880 to 1903: U.S. 

Geol. Survey Bull. 220, 119 p.

 1904, Analyses of rocks from the laboratory of the 

United States Geological Survey, 1880 to 1903: U.S. 

Geol. Survey Bull. 228, 375 p.

.1915, Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1880 to 

1914: U.S. Geol. Survey Bull. 591, 376 p.

Clarke, F. W., and Hillebrand, W. F., 1897, Analyses of rocks, 

with a chapter on Analytical methods, laboratory of the 

United States Geological Survey, 1880 to 1896: U.S. 

Geol. Survey Bull. 148, 306 p.

Coats, R. R., 1952, Magmatic differentiation in Tertiary and 

Quaternary volcanic rocks from Adak and Kanaga 

Islands, Aleutian Islands, Alaska: Geol. Soc. America 

Bull., v. 63, no. 5, p. 485-514.

 1959, Geologic reconnaissance of Semisopochnoi 

Island, western Aleutian Islands, Alaska: U. S. Geol. 

Survey Bull. 1028-0, p. 477-519.

Cobb, E. H., 1951, Clay deposits on Healy Creek, in Barnes, 

F. F., Wahrhaftig, Clyde, Hickcox, C. A., Freedman, 

Jacob, and Hopkins, D. M., Coal investigations in southcentral Alaska, 1944-46: U.S. Geol. Survey Bull. 963-E, 

p. 165-168.

Cobb, E. H., and 'Kachadoorian, Reuben, 1961, Index of 

metallic and nonmetallic mineral deposits of Alaska 

compiled from published reports of Federal and State 

agencies through 1959: U.S. Geol. Survey Bull. 1139, 

363 p.

Coombs, H. A., 1952, Spherulitic breccias in a dome near 

Wenatchee, Washington: Am. Mineralogist, v. 37, nos. 

3 and 4, p. 197-206.

 1960, United States of America, in pt 9 of Catalogue 

of the active volcanoes of the world, including solfatara 

fields: Naples, Italy, Internat. Volcanol. Assoc., p. 1-58.

Corcoran, R. E., 1962, Bauxite deposits of the Salem Hills, 

Marion County, Oregon: Geol. Soc. Oregon Country 

Geol. News Letter, v. 28, no. 5, p. 25-58.

Corcoran, R. E., and Libbey, F. W., 1955, Investigation of 

Salem Hills bauxite deposits: Ore Bin, v. 17, no. 4, 

p. 23-30.

______1956, Ferruginous bauxite deposits in the Salem 

Hills, Marion County, Oregon: Oregon Dept. Geology and 

Mineral Industries Bull. 46, 53 p.

Courtis, W. M., 1900, The Clealum iron-ores, Washington: 

Am. Inst. Mining Engineers Trans., v. 30, p. 1116-1117 

[1901].

Cremer, Herbert, 1954, Continuous electric smelting of lowgrade nickel ores: U.S. Bur. Mines Rept. Inv. 5021, 36 p.

Cressman, E. R., and Swanson, R. W., 1964, Stratigraphy and 

petrology of the Permian rocks of southwestern Montana: U.S. Geol. Survey Prof. Paper 313-C, p. 275-569.

Banner, W. R., 1966, Limestone resources of western Washington: Washington Div. Mines and Geology Bull. 52, 

474 p.

Darton, N. H., 1909, Structural materials in parts of Oregon 

and Washington: U.S. Geol. Survey Bull. 387, 33 p.

Davidson, D. F., Smart, R. A., Peirce, H. W., and Weiser, 

J. D., 1953, Stratigraphic sections of the Phosphoria 

formation in Idaho, 1949, Pt. 2: U.S. Geol. Survey Circ. 

305, 28 p.

Day, W. C., 1898, Stone: U.S. Geol. Survey 19th Ann. Rept.,

1897-98, pt. 6 [con.], p. 205-309. 

_____1899, Stone: U.S. Geol. Survey 20th Ann. Rept.,

1898-99, pt. 6 [con.], p. 269-464.

Dean, R. S., and others, 1938, Progress reports Metallurgical Division, 25. Annual report of the Metallurgical 

Division, Fiscal Year 1937-38: U.S. Bur. Mines Rept. 

Inv. 3419, 80 p.

Deiss, Charles, 1949, Phosphate deposits of the Deer CreekWells Canyon area, Caribou County, Idaho: U.S. Geol. 

Survey Bull. 955-C, p. 61-101.

_____1955, Dolomite deposit near Marble, Stevens County, 

Washington: U.S. Geol. Survey Bull. 1027-C, p. 119-141.

Dickinson, W. R., 1962a, Metasomatic quartz keratophyre in 

central Oregon: Am. Jour. Sci., v. 260, no. 4, p. 249-266.

_____1962b, Petrology and diagenesis of Jurassic andesitic 

strata in central Oregon: Am. Jour. Sci., v. 260, no. 7, 

p. 481-500.

Dietz, R. S., 1955, Manganese deposits on the Northeast 

Pacific sea floor: California Jour. Mines and Geology, 

v. 51, no. 3, p. 209-220; repr. in California Univ. Scripps 

Inst. Oceanography Contr. 1955, p. 523-534.

Diller, J. S., 1896, A geological reconnaissance in northwestern Oregon: U.S. Geol. Survey 17th Ann. Rept., 1895-96, 

pt. 1, p. 441-520.

_____1898, Description of the Roseburg quadrangle [Oregon] : U. S. Geol. Survey Geol. Atlas, Folio 49.

_____1914, Mineral resources of southwestern Oregon;

U.S. Geol. Survey Bull. 546, 147 p.

Diller, J. S., and Kay, G. F., 1909, Mineral resources of the 

Grants Pass quadrangle and bordering districts, Oregon: 

U.S. Geol. Survey Bull. 380-A, p. 48-79.

Dings, M. G., and Whitebread, D. H., 1965, Geology and ore 

deposits of the Metaline zinc-lead district, Pend Oreille 

County, Washington: U.S. Geol. Survey Prof. Paper 

489, 109 p.

Doerner, H. A., Holbrook, W. F., and Fortner, 0. W., 1946, 

The bicarbonate process for the production of magnesium 

oxide: U.S. Bur. Mines Tech. Paper 684, 48 p.

Dolman, C. D., 1920, Magnesite Its geology, products, and 

their uses: Am. Inst. Mining Metall. Engineers Trans., 

v. 63, p. 175-187.

Eakin, H. M., 1915, Iron-ore deposits near Nome [Alaska]: 

U.S. Geol. Survey Bull. 622-1, p. 361-365.

Eardley-Wilmot, V. L., 1928, Diatomite, its occurrence, preparation, and uses: Ottawa, Canada Dept. Mines, Mines 

Branch, No. 691, 182 p.

Eckel, E. C., 1905, Cement materials and industry of the 

United States: U.S. Geol. Survey Bull. 243, 395 p.

1912, Building stones and clays Their origin, characters, and examination [1st ed.]: New York, John 

Wiley & Sons, 264 p.
REFERENCES CITED 305

_____1913, Portland cement materials and industry in the 

United States: U.S. Geol. Survey Bull. 522, 401 p.

Eckhart, R. A., and Plafker, George, 1959, Haydite raw 

material in the Kings River, Sutton, and Lawing areas, 

Alaska: U.S. Geol. Survey Bull. 1039-C, p. 33-65.

Emigh, G. D., 1958, Petrography, mineralogy, and origin of 

phosphate pellets in the Phosphoria Formation: Idaho 

Bur. Mines and Geology Pamph. 114, 60 p.

Every, A. H., and Hagen, G. L., 1949, The production of 

aluminous cement from northwest materials: Ore Bin, 

v. 11, no. 4, p. 24-31.

Fenner, C. N., 1926, The Katmai magmatic province: Jour. 

Geology, v. 34, no. 7, pt. 2, p. 673-772.

 1950a, The chemical kinetics of the Katmai eruption 

[Alaska], Pt. 1: Am. Jour. Sci., v. 248, no. 9, p. 593-627. 

_1950b, The chemical kinetics of the Katmai eruption,

Pt. 2: Am. Jour. Sci., v. 248, no. 10, p. 697-725.

Fieldner, A. C., Cooper, H. M., and Osgood, F. D., 1931, 

Analyses of mine samples, in Analyses of Washington 

coals: U.S. Bur. Mines Tech. Paper 491, p. 56-101.

Fieldner, A. C., Hall, A. E., and Feild, A. L., 1918, The fusibility of coal ash and the determination of the softening 

temperature: U.S. Bur. Mines Bull. 129, 146 p.

Foullon, H. B. von, 1892, tjber einige Nickelerzvorkommen 

[Concerning some nickel ore occurrences] : Geol. Reichsanstalt Jahrb., v. 42, no. 2, p. 29-310.

Fremont, J. C., 1845, Report of the exploring expedition to 

the Rocky Mountains in the year 1842, and to Oregon 

and North California in the years 1843-44: Washington, 

Gales & Seaton, Printers, 693 p.

Fursman, 0. C., 1962, Recovery of mineral values in cupriferous and nickeliferous pyrrhotite: U.S. Bur. Mines 

Rept. Inv. 6043, 24 p.

Gale, H. S., and Richards, R. W., 1910, Preliminary report 

on the phosphate deposits in southeastern Idaho and 

adjacent parts of Wyoming and Utah: U.S. Geol. Survey 

Bull. 430-H, p. 457-535.

Gardner, L. S., 1944, Phosphate deposits of the Teton Basin 

area, Idaho and Wyoming: U.S. Geol. Survey Bull. 

944-A, p. 1-36.

Geer, M. R., 1965, Amenability of coals from the Roslyn-Cle 

Elum (Washington) field to the production of high-ash 

boiler fuel: U.S. Bur. Mines Rept. Inv. 6623, 16 p.

Geijsbeek, Samuel, 1911, The clay deposits of Washington: 

Am. Ceramic Soc. Trans., v. 13, p. 751-764.

Gillson, J. L., 1930, Contact metamorphism of the rocks in 

the Pend Oreille district, northern Idaho: U.S. Geol. 

Survey Prof. Paper 158-F, p. 111-121.

Glover, S. L., 1936, Nonmetallic mineral resources of Washington, with statistics for 1933: Washington Div. Mines 

and Geology Bull. 33, 135 p.

 1941, Clays and shales of Washington: Washington 

Div. Mines and Geology Bull. 24, 368 p.

-1942, Washington iron ores A summary report:

Washington Div. Mines and Geology Rept. Inv. 2, 23 p. 

Goldberg, E. D., and Arrhenius, G. 0. S., 1958, Chemistry of

Pacific pelagic sediments: Geochim. et Cosmochim. Acta,

v. 13, nos. 2 and 3, p. 153-212; repr. in California Univ.

Scripps Inst. Oceanography Contr. 1957, p. 757-818. 

Griggs, R. F., 1918, The recovery of vegetation at Kodiak

[Alaska]: Ohio Jour. Sci., v. 19, no. 1, p. 1-57. 

Grim, R. E., and Rowland, R. A., 1942, Differential thermal

analysis of clay minerals and other hydrous materials,

Pt. 2: Am. Mineralogist, v. 27, no. 12, p. 801-818.

Gryc, George, 1948, Geological investigations Naval petroleum 

reserve No. 4, Alaska Petrographic study of some 

Lisburne Limestone samples: U.S. Geol. Survey open-file 

report, 7 p.

Gulbrandsen, R. A., 1966, Chemical composition of phosphorites of the Phosphoria Formation: Geochem. et Cosmochim. Acta, v. 30, no. 8, p. 769-778.

Gulbrandsen, R. A., and Cressman, E. R., 1960, Analcime 

and albite in altered Jurassic tuff in Idaho and Wyoming: 

Jour. Geology, v. 68, no. 4, p. 458-464.

Hall, M. B., and Banning, L. H., 1958, Removing and recovering fluorine from western phosphate rock and utilizing 

the defluorinated rock: U.S. Bur. Mines Rept. Inv. 5381, 

49 p.

Harrison, J. E., and Jobin, D. A., 1963, Geology of the Clark 

Fork quadrangle, Idaho-Montana: U.S. Geol. Survey 

Bull. 1141-K, 38 p.

Hay, R. L., 1963, Stratigraphy and zeolitic diagenesis of the 

John Day Formation of Oregon: California Univ. Pubs. 

Geol. Sci., v. 42, no. 5, p. 199-261.

Herreid, Gordon, 1966, Preliminary geology and geochemistry 

of the Sinuk River area, Seward Peninsula, Alaska: 

Alaska Div. Mines and Minerals Geol. Rept. 24, 19 p.

Hess, F. L., and Wells, R. C., 1920, Brannerite A new 

uranium mineral: Franklin Inst. Jour., v. 189, p. 225-238.

Hewett, D. F., and Fleischer, Michael, 1960, Deposits of the 

manganese oxides: Econ. Geology, v. 55, no. 1, p. 1-55.

Hilgard, E. W., 1892, A report on the relations of soil to 

climate: U.S. Dept. Agriculture Weather Bur. Bull. 3, 

59 p.

Hill, T. P., 1971, Magnetic tape containing 7,192 chemical 

analyses of sedimentary rocks of the Central and Northwestern United States: Tape PB-197-514, available only 

from U.S. Dept. Commerce, Natl. Tech. Inf. Service, 

Springfield, Va. 22151; for explanation of magnetic tape, 

see accompanying document (Roberts, M. R., 1971, Computer program for selective retrieval of data from a 

standard (formatted) STATPAC tape (Program No. 

A472F).

Hill, T. P., and Tourtelot, H. A., 1971, Description of magnetic tape containing 7,192 chemical analyses of sedimentary rocks of the Central and Northwestern United 

States: Rept. PB-197-513, 28 p., available only from 

U.S. Dept. Commerce, Natl. Tech. Inf. Service, Springfield, Va. 22151.

Hill, T. P., Werner, M. A., and Horton, M. J., compilers, 1967, 

Chemical composition of sedimentary rocks in Colorado, 

Kansas, Montana, Nebraska, North Dakota, South Dakota, and Wyoming, with an introduction by W. W. 

Rubey: U.S. Geol. Survey Prof. Paper 561, 241 p.

Hill, W. L., Marshall, H. L., and Jacob, K. D., 1931, Composition of mechanical separates from ground phosphate 

rock: Indus, and Eng. Chemistry, v. 23, no. 10, p. 

1120-1124.

Hobbs, S. W., Griggs, A. B., Wallace, R. E., and Campbell, 

A. B., 1965, Geology of the Coeur d'Alene district, 

Shoshone County, Idaho: U.S. Geol. Survey Prof. Paper 

478, 139 p.

Hodge, E. T., 1935a, Report on available raw materials for 

a Pacific Coast iron industry: Portland, Oreg., U.S. 

Army Corps Engineers, North Pacific Div., v. 1, p. 1-130.

_____1935b, Available raw material for a Pacific Coast 

iron industry: Portland, Oreg., U.S. Army Corps Engineers, North Pacific Div., v. 3, App. E, p. 1-35.

487-187 O - 73 - 21
306 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

___1935c, Available raw material for a Pacific coast iron 

industry: Portland, Oreg., U.S. Army Corps Engineers, 

North Pacific Div., v. 4, App. L, p. 1-84.

 1938a, Information on additional iron ores of the 

Northwest, Pt. 1, in Available raw materials for a Pacific Coast iron industry: Portland, Oreg., U.S. Army 

Corps Engineers, North Pacific Div., v. 5, pt. 1, p. 1-72.

 1938b, Northwest magnesia ores, section 1 of Market 

for Columbia River hydroelectric power using northwest 

minerals: Portland, Oreg., U.S. War Dept., Corps Engineers, North Pacific Div., p. 1-31.

___1938c, Northwest silica minerals, section 2 of Market 

for Columbia River hydroelectric power using northwest 

minerals: Portland, Oreg., U.S. War Dept., Corps Engineers, North Pacific Div., v. 1, pt. 1, p. 1-175.

 1938d, Northwest limestones, section 3 of Market for 

Columbia River hydroelectric power using northwest 

minerals: Portland, Oreg., U.S. War Dept., Corps Engineers, North Pacific Div., v. 1, pt. 1, 312 p.

___1938e, Northwest clays, section 4 of Market for Columbia River hydroelectric power using northwest minerals: Portland, Oreg., U.S. War Dept., Corps Engineers, 

North Pacific Div., v. 3, pt. 3, p. 492-804.

 1938f, Northwest clays, section 4 of Market for Columbia River hydroelectric power using Northwest minerals: Portland Oreg., U.S. War Dept., Corps Engineers, 

North Pacific Div., v. 4, pt. 3, p. 805-986.

___1938g, Preliminary report on some Northwest manganese deposits, their possible exploration and uses: 

Portland, Oreg., U.S. Army Corps Engineers, North 

Pacific Div., v. 1, 91 p.

-1944, Limestone of the Pacific Northwest Available

limestones suitable for calcium carbide and (or) for flint 

glass industries: Portland, Oreg., U.S. Bonneville Power 

Adm., 104 p.

Hosterman, J. W., and Livingston, V. E., Jr., 1966, Clays, in 

Mineral and water resources of Washington: U.S. Cong., 

89th, 2d sess., Comm. Interior and Insular Affairs, Comm. 

Print., p. 177-185.

Hosterman, J. W., Scheid, V. E., Alien, V. T., and Sohn, 

I. G., 1960, Investigations of some clay deposits in Washington and Idaho: U.S. Geol. Survey Bull. 1091, 147 p.

Hotz, P. E., 1953, Limonite deposits near Scappoose, Columbia 

County, Oregon: U.S. Geol. Survey Bull. 982-C, p. 75-93.

 1964, Nickelferous laterites in southwestern Oregon 

and northwestern California: Econ. Geology, v. 59, no. 3, 

p. 355-396.

Hubbard, C. R., 1956a, Clay deposits of north Idaho: Idaho 

Bur. Mines and Geology Pamph. 109, 36 p.

 1956b, Geology and mineral resources of Nez Perce

County: Idaho Bur. Mines and Geology County Rept. 1,

17 p. 

Hundhausen, R. J., 1947, Chromiferous sand deposits in the

Coos Bay area, Coos County, Oregon: U.S. Bur. Mines

Rept. Inv. 4001, 13 p.

 1949, Investigation of the Young America lead-zinc 

deposit, Stevens County, Washington: U.S. Bur. Mines 

Rept. Inv. 4556, 13 p.

Hundhausen, R. J., McWilliams, J. R., and Banning, L. H., 

1954, Preliminary investigation of the Red Flats nickel 

deposit, Curry County, Oregon: U.S. Bur. Mines Rept. 

Inv. 5072, 19 p.

Hunt, J. M., 1950, Infrared spectra of clay minerals, in Infrared spectra of reference clay minerals: Am. Petroleum 

Inst. Research Proj. 49, Clay Mineral Standards Prelim. 

Rept. 8, sec. 3, p. 105-123.

Huntting, M. T., 1956, Metallic minerals, Pt. 2 of Inventory 

of Washington minerals: Washington Div. Mines and 

Geology Bull. 37, v. 1 (text), 428 p.; v. 2 (maps), 67 p.

Ingalls, A. O., 1909, Iron ores from Washington: Northwest 

Mining Jour., v. 7, no. 5, p. 116-119.

Jacob, K. D., Hill, W. L., Marshall, H. L., and Reynolds, D. 

S., 1933, The composition and distribution of phosphate 

rock, with special reference to the United States: U.S. 

Dept. Agriculture Tech. Bull. 364, 89 p.

Jacobs, C. W. F., 1950, Glazes from Oregon volcanic glass: 

Oregon Dept. Geology and Mineral Industries Short 

Paper 20, 16 p.

Jasper, M. W., and Mihelich, Miro, 1961, Kings River limestone deposits, Anchorage quadrangle: Alaska Div. 

Mines and Minerals Rept. for 1961, p. 40-48.

Jenkins, O. P., 1918, Two manganese deposits in northern 

Washington: Eng. and Mining Jour., v. 105, no. 24, 

p. 1082.

Jenkins, O. P., and Cooper, H. H., 1922, A study of the iron 

ores of Washington: Washington Div. Mines and Geology 

Bull. 27, pt. 1, p. 111-115.

Jermain, G. D., and Rutledge, F. A., 1952, Diamond drilling 

the Gypsum-Camel prospect, lyoukeen Cove, Chichagof 

Island, southeastern Alaska: U.S. Bur. Mines Rept. Inv. 

4852, 6 p.

Kelly, H. J., Strandberg, K. G., and Mueller, J. I., 1956, 

Ceramic industry development and raw-material resources of Oregon, Washington, Idaho, and Montana: 

U.S. Bur. Mines Inf. Circ. 7752, 76 p.

Kelly, J. V., 1947, High alumina-iron laterite deposits, Columbia County, Oregon: U.S. Bur. Mines Rept. Inv. 4081, 

51 p.

Kemp, J. F., 1907, Ore deposits at the contacts of intrusive 

rocks and limestone, and their significance as regards 

the general formation of veins: Econ. Geology, v. 2, 

no. 1, p. 1-13.

Kemp, J. F., and Gunther, C. G., 1908, The White Knob 

copper deposits, Mackay, Idaho: Am. Inst. Mining Engineers Trans., v. 38, p. 269-296.

Kennedy, G. C., 1953, Geology and mineral deposits of Jumbo 

basin, southeastern Alaska: U.S. Geol. Survey Prof. 

Paper 251, 46 p.

Kenworthy, H., and Moreland, M. L., 1956, Laboratory results 

on testing mineral-wool raw materials: U.S. Bur. Mines 

Rept. Inv. 5203, 18 p.

Kerr, P. F., 1940, Tungsten-bearing manganese deposit at 

Golconda, Nevada: Geol. Soc. America Bull., v. 51, no. 9, 

p. 1359-1390.

Kerr, P. F., Hamilton, P. K., and Pill, R. J., 1950, X-ray 

diffraction measurements, in Analytical data on reference 

clay minerals: Am. Petroleum Inst. Research Proj. 49, 

Clay Mineral Standards Prelim. Rept. 7, sees. 1A and 

IB, p. 1-58.

Kerr, P. F., and Kulp, J. L., 1949, Reference clay localities 

United States: Am. Petroleum Inst. Research Proj. 49, 

Clay Mineral Standards Prelim. Rept. 2, 101 p.

Kerr, P. F., Kulp, J. L., and Hamilton, P. K., 1949, Differential thermal analyses of reference clay-mineral specimens: Am. Petroleum Inst. Research Proj. 49, Clay 

Mineral Standards Prelim. Rept. 3, 48 p.
REFERENCES CITED 307

Kerr, P. F., Main, M. S., and Hamilton, P. K., 1950, Occurrence and microscopic examination of reference claymineral specimens: Am. Petroleum Inst. Research Proj. 

49, Clay Mineral Standards Prelim. Kept. 5, 58 p.

Kessler, D. W., 1919, Physical and chemical tests on the 

commercial marbles of the United States: [U.S.] Natl. 

Bur. Standards Technol. Paper 123, p. 3-54.

Kimball, J. P., 1898, Residual concentration by weathering 

as a mode of genesis of iron ores: Am. Geologist, v. 21, 

p. 155-163.

King, Rowland, 1942, Unusual occurrence of manganese ore: 

Eng. and Mining Jour., v. 143, no. 9, p. 52-54.

Kirkham, V. R. D., 1925, Phosphate deposits of Idaho and 

their relation to the world supply: Am. Inst. Mining 

Metall. Engineers Trans., v. 71, p. 308-338.

Klepper, M. R., Honkala, F. S., Payne, O. A., and Ruppel, 

E. T., 1953, Stratigraphic sections of the Phosphoria 

formation in Montana, 1948: U.S. Geol. Survey Circ. 

260, 39 p.

Koster, J., and Shelton, S. M., 1936, Electrolytic manganese: 

Eng. and Mining Jour., v. 137, no. 10, p. 510-512.

Krejci, M. W., 1914, The Metaline plant of the Inland Portland Cement Co., Metaline Falls, Washington: Am. Inst. 

Mining Metall. Engineers Trans., v. 46, p. 927-936.

Ladoo, R. B., 1948, Industrial silica for Pacific northwest 

industries: Portland, Oreg., Raw Materials Survey, Inc., 

Resource Rept. 1, 40 p.

LaHabra Laboratory, California Research Corporation, 1950, 

Particle-size data, in Analytical data on reference clay 

minerals: Am. Petroleum Inst. Research Proj. 49, Clay 

Mineral Standards Prelim. Rept. 7, sec. 5, p. 129-133.

Landes, Henry, 1902, The nonmetalliferous resources of 

Washington, except coal: Washington Geol. Survey, Ann. 

Rept. for 1901, v. 1, pt. 3, 55 p.

 1905, Cement resources of Washington: U.S. Geol. 

Survey Bull. 285, p. 377-384 [1906].

_____1934, The mineral resources of the Columbia River

basin in eastern Washington and parts of northern 

Idaho, in Columbia River and minor tributaries: U.S. 

73d Cong., 1st sess., House Doc. 103, v. 2, p. 1068-1103.

Ledoux, A. R., 1901, Notes on the Oregon nickel prospects: 

Ottawa, Canada, Canadian Inst. Mining Jour., 1900, 

v. 4, p. 184-189.

Libbey, F. W., 1957, Limestone resources of the Pacific 

Northwest: Portland, Oreg., Raw Materials Survey, Inc., 

Resource Rept. 9, 89 p.

Libbey, F. W., LoWy, W. D., and Mason, R. S., 1944, Highalumina iron ores in Washington County, Oregon: Oregon Dept. Geology and Mineral Industries Short Paper 

12, 23 p.

 1945, Ferruginous bauxite deposits in northwestern 

Oregon: Oregon Dept. Geology and Mineral Industries 

Bull. 29, 97 p.

-1946, Ferruginous bauxite deposits in northwestern

Oregon: Econ. Geology, v. 41, no. 3, p. 246-265. 

Loughlin, G. F., 1914, Idaho, in Nonmetals, Pt. 2 of Mineral

resources of the United States, 1913: U.S. Geol. Survey

Mineral Resources, U.S., p. 1376-1387.

Lowell, W. R., 1952, Phosphatic rocks in the Deer CreekWells Canyon area, Idaho: U.S. Geol. Survey Bull.

982-A, p. 1-52. 

Mabie, C. P., and Hess, H. D., 1964, Petrographic study and

classification of Western phosphate ores: U.S. Bur.

Mines Rept. Inv. 6468, 95 p.

McKelvey, V. E., Armstrong, F. C., Gulbrandsen, R. A., and 

Campbell, R. M., 1953, Stratigraphic sections of the 

Phosphoria formation in Idaho, 1947-48, Pt. 2: U.S. 

Geol. Survey Circ. 301, 58 p.

McKelvey, V. E., Davidson, D. F., O'Malley, F. W., and 

Smith, L. E., 1953, Stratigraphic sections of the Phosphoria formation in Idaho, 1947-48, Pt. 1: U.S. Geol. 

Survey Circ. 208, 49 p.

McLellan, R. D., 1927, The geology of the San Juan Islands: 

Seattle, Washington Univ. Ph. D. Dissert., 185 p.

Mansfield, G. R., 1916, Nitrate deposits in southern Idaho 

and eastern Oregon: U.S. Geol. Survey Bull. 620-B, p. 

19-44.

_____1920, Geography, geology, and mineral resources of 

the Fort Hall Indian Reservation, Idaho: U.S. Geol. 

Survey Bull. 713, 152 p.

_____1927, Geography, geology, and mineral resources of 

part of southeastern Idaho: U.S. Geol. Survey Prof. 

Paper 152, 453 p.

-1929, Geography, geology, and mineral resources of

the Portneuf quadrangle, Idaho: U.S. Geol. Survey Bull.

803, 110 p. 

Mapel, W. J., and Hail, W. J., Jr., 1959, Tertiary geology of

the Goose Creek district, Cassia County, Idaho, Box

Elder County, Utah, and Elko County, Nevada: U.S.

Geol. Survey Bull. 1055-H, p. 217-254. 

Marshall, H. L., Reynolds, D. S., Jacob, K. D., and Rader,

L. F., Jr., 1935, Phosphate fertilizers by calcination

process: Indus, and Eng. Chemistry, v. 27, no. 2, p.

205-209. 

Martin, G. W., 1958, Mineralogy of phosphate oolites: Econ.

Geology, v. 53, no. 8, p. 1046-1048. 

Mason, Brian, 1952, Principles of geochemistry [1st ed.]:

New York, John Wiley & Sons, Inc., 276 p. 

Mason, R. S., 1951, Lightweight aggregate industry in Oregon: Oregon Dept. Geology and Mineral Industries Short

Paper 21, 23 p. 

Melville, W. H., 1892, Josephinite A new nickel-iron: Am.

Jour. Sci., 3d ser., v. 43, no. 258, p. 509-515. 

Merrill, G. P., 1886, Notes on the composition of certain

"Pliocene sandstones" from Montana and Idaho: Am.

Jour. Sci., 3d ser., v. 32, p. 199-204. 

_____1906, A treatise on rocks, rock weathering, and soils:

New York, MacMillan Co., 400 p. 

Mertie, J. B., 1933, The Tatonduk-Nation district [Alaska] :

U.S. Geol. Survey Bull. 836-E, p. 347-443. 

Miller, R. M., 1938, An investigation of the feasibility of a

steel plant in the Lower Columbia River area near

Portland, Oregon: Oregon Dept. Geology and Mineral

Industries Bull. 8, 55 p.

Mills, J. W., 1962, High-calcium limestones of eastern Washington: Washington Div. Mines and Geology Bull. 48,

268 p. 

Mining and Scientific Press, 1882, Nickel in Oregon: San

Francisco, Dewey & Co., v. 44, no. 25, p. 416. 

_____1900, Relative values of fuels used on the Pacific

Coast: San Francisco, Dewey & Co., v. 81, no. 23, p. 569. 

Moen, W. S., 1962, Geology and mineral deposits of the north

half of the Van Zandt quadrangle, Whatcom County,

Washington: Washington Div. Mines and Geology Bull.

50, 129 p. 

Montgomery, K. M., and Cheney, T. M., 1967, Geology of the

Stewart Flat quadrangle, Caribou County, Idaho: U.S.

Geol. Survey Bull. 1217, 63 p.
308 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Moore, B. N., 1934a, Diatomite and pumice in eastern Oregon: Am. Inst. Mining Metall. Engineers Contr. 73, 15 p.

 1934b, Deposits of possible nuee ardente origin in the 

Crater Lake region, Oregon: Jour. Geology, v. 42, no. 4, 

p. 358-375.

 1937, Nonmetallic mineral resources of eastern Oregon: U.S. Geol. Survey Bull. 875, 180 p.

Moxham, R. M., and Eckhart, R. A., 1952, Marl deposits in 

the Wasilla area, Alaska: U.S. Geol. Survey open-file 

report, 19 p.

 1956, Marl deposits in the Knik Arm area, Alaska:

U.S. Geol. Survey Bull. 1039-A, p. 1-23. 

Moxham, R. M., Eckhart, R. A., and Cobb, E. H., 1959,

Geology and cement raw materials of the Windy Creek

area, Alaska: U.S. Geol. Survey Bull. 1039-D, p. 67-100

[I960]. 

Newhouse, W. H., 1934, Contact metamorphism, in Ross, C.

P., Geology and ore deposits of the Casto quadrangle,

Idaho: U.S. Geol. Survey Bull. 854, p. 68-72. 

Norman, James, and Ralston, 0. C., 1942, Purification of

diatomite by froth flotation: Am. Inst. Mining Metall.

Engineers Trans., v. 148, p. 356-366. 

O'Malley, F. W., Davidson, D. F., Hoppin, R. A., and Sheldon,

R. P., 1953, Stratigraphic sections of the Phosphoria

formation in Idaho, 1947-48, Pt. 3: U.S. Geol. Survey

Circ. 262, 43 p. 

Oregon Department of Geology and Mineral Industries, 1940,

Coos, Curry, and Douglas Counties: Oregon Metal Mines

Handb., Bull. 14-C, v. 1, 133 p.

 1942, Josephine County: Oregon Metal Mines Handb., 

Bull. 14-C, v. 2, sec. 1, 229 p.

 1943, Jackson County: Oregon Metal Mines Handb., 

Bull. 14-C, v. 2, sec. 2, 208 p.

 1943, Limestone deposits in Oregon: Ore Bin, v. 5, 

no. 10, p. 64-67.

 1948, New bauxite discovery: Ore Bin, v. 10, no. 9, 

p. 63-65.

 1950a, New building-stone discovery: Ore Bin, v. 12, 

no. 5, p. 27-30.

 1950b, Some analyses of Oregon rocks indicating possible fertilizing value: Ore Bin, v. 12, no. 7, p. 41-43.

 1951, Northwestern Oregon: Oregon Metal Mines 

Handb., Bull. 14-D, 166 p.

.1961, Ferruginous bauxite found in Chehalem Hills:

Ore Bin, v. 23, no. 12, p. 122.

Osgood, F. D., 1931, Description of mine samples, in Analyses 

of Washington coals: U.S. Bur. Mines Tech. Paper 491, 

p. 102-198.

Osthaus, B. B., 1954, Chemical determination of tetrahedral 

ions in nontronite and montmorillonite, in Swineford, 

Ada, and Plummer, Norman, eds., Clays and clay minerals, Natl. Conf. Clays and Clay Minerals, 2d, Columbia, 

Mo., 1953, Proc.: Natl. Acad. Sci. Natl. Research Council Pub. 327, p. 404-417.

 1956, Kinetic studies on montmorillonites and nontronite by the acid-dissolution technique, in Swineford, 

Ada, ed., Clays and clay minerals, Natl. Conf. Clays and 

Clay Minerals, 4th, University Park, Pa., 1955, Proc.: 

Natl. Acad. Sci. Natl. Research Council Pub. 456, p. 

301-321.

Pardee, J. T., 1922, Deposits of manganese ore in Montana, 

Utah, Oregon, and Washington: U.S. Geol. Survey Bull. 

725-C, p. 141-243.

 1928, Manganese-bearing deposits near Lake Crescent and Humptulips, Washington: U.S. Geol. Survey 

Bull. 795-A, p. 1-24.

Pardee, J. T., Larsen, E. S., Jr., and Steiger, George, 1921, 

Mineralogy Bementite and neotocite from western 

Washington, with conclusions as to the identity of 

bementite and caryopilite: Washington Acad. Sci. Jour., 

v. 11, no. 2, p. 25-32.

Park, C. F., Jr., and Cannon, R. S., Jr., 1943, Geology and 

ore deposits of the Metaline quadrangle, Washington: 

U.S. Geol. Survey Prof. Paper 202, 81 p.

Pask, J. A., and Davies, Ben, 1943, Thermal analysis of clay 

minerals and acid extraction of alumina from clays: U.S. 

Bur. Mines Rept. Inv. 3737, 28 p.

_____1945, Thermal analysis of clay minerals and acid 

extraction of alumina from clays, in Speil, Sidney, Berkelhamer, L. H., Pask, J. A., and Davies, Ben, Differential thermal analysis Its application to clays and other 

aluminous minerals: U.S. Bur. Mines Tech. Paper 664, 

p. 56-81.

Patty, E. N., 1921, The metal mines of Washington: Washington Geol. Survey Bull. 23, 366 p.

Patty, E. N., and Glover, S. L., 1921, The mineral resources 

of Washington, with statistics for 1919: Washington 

Geol. Survey Bull. 21, 155 p.

Peck, D. L., Griggs, A. B., Schlicker, H. G., Wells, F. G., and 

Dole, H. M., 1964, Geology of the central and northern 

parts of the western Cascade Range in Oregon: U.S. 

Geol. Survey Prof. Paper 449, 56 p.

Pecora, W. T., and Hobbs, S. W., 1942, Nickel deposit near 

Riddle, Douglas County, Oregon: U.S. Geol. Survey Bull. 

931-1, p. 205-226.

Pecora, W. T., Hobbs, S. W., and Murata, K. J., 1949, Variations in garnierite from the nickel deposit near Riddle, 

Oregon: Econ. Geology, v. 44, no. 1, p. 13-23.

Peterson, N. V., 1958, Southwestern Oregon, in Peterson, 

N. V., and Mason, R. S., Limestone occurrences in western Oregon: Ore Bin, v. 20, no. 4, p. 33-38.

Pettijohn, F. J., 1957, Sedimentary rocks, 2d ed.: New York, 

Harper & Bros., 718 p.

_____1963, Chemical composition of sandstone excluding 

carbonate and volcanic sands, Chapter S of Data of 

geochemistry, 6th ed.: U.S. Geol. Survey Prof. Paper 

440-S, 21 p.

Pewe, T. L., 1955, Origin of the upland silt near Fairbanks, 

Alaska: Geol. Soc. America Bull., v. 66, no. 6, p. 699-724.

Plafker, George, 1956, Occurrence of diatomaceous earth near 

Kenai, Alaska: U.S. Geol. Survey Bull. 1039-B, p. 25-31.

Plafker, George, and Berg, H. C., 1964, Nonmetallic mineral 

resources, in Mineral and water resources of Alaska: 

U.S. Gong., 88th, 2d sess., Comm. Interior and Insular 

Affairs, Comm. Print., p. 125-148.

Ponder, Herman, and Keller, W. D., 1960, Geology, mineralogy, and genesis of selected fireclays from Latah County, 

Idaho, in Swineford, Ada, ed., Clays and clay minerals, 

Natl. Conf. Clays and Clay Minerals, 8th, Norman, 

Okla., 1959, Proc.: New York, Pergamon Press, Internat. 

Earth Sci. Ser. Mon. 9, v. 8, p. 44-62.

Popoff, C. C., 1948, Investigation of the Sauk Mountain 

limestone deposits, Skagit County, Washington: U.S. 

Bur. Mines Rept. Inv. 4355, 14 p.

_____1949a, Investigation of limestone deposits near Arlington, Snohomish County, Washington: U.S. Bur. Mines 

Rept. Inv. 4393, 7 p.
REFERENCES CITED 309

 1949b, Investigation of Whitehorse limestone deposits, Snohomish County, Washington: U.S. Bur. Mines 

Kept. Inv. 4510, 9 p.

___1949c, Investigation of the Whitechuck travertine 

deposit near Darrington, Snohomish County, Washington: U.S. Bur. Mines Kept. Inv. 4565, 4 p.

.1955, Cowlitz clay deposits near Castle Rock, Washington: U.S. Bur. Mines Kept. Inv. 5157, 60 p.

Powers, H. A., Coats, R. R., and Nelson, W. H., 1960, Geology 

and submarine physiography of Amchitka Island, Alaska: 

U.S. Geol. Survey Bull. 1028-P, p. 521-554.

Prater, L. S., 1947, Beneficiation tests on gypsum rock from 

Washington County, Idaho: Idaho Bur. Mines and 

Geology Pamph. 77, 6 p.

Ralston, O. C., Pike, R. D., and Duschak, L. H., 1925, Plastic 

magnesia: U.S. Bur. Mines Bull. 236, 111 p.

Ramp, Lenin, 1960, The Quartz Mountain silica deposit, Oregon: Ore Bin, v. 22, no. 11, p. 109-114.

_____1962, Jones marble deposit, Josephine County, Oregon: Ore Bin, v. 24, no. 10, p. 153-158.

Ravitz, S. F., 1947, Electric smelting of low-grade nickel 

ores: U.S. Bur. Mines Rept. Inv. 4122, 39 p.

Ravitz, S. F., Nicholson, I. W., Chindgren, C. J., Bauerle, 

L. C., Williams, F. P., and Martinson, M. T., 1949, 

Treatment of Idaho-Wyoming vanadiferous shales: Am. 

Inst. Mining Metall. Engineers Trans., v. 182, p. 307-320.

Ries, Heinrich, 1895, Technology of the clay industry: U.S. 

Geol. Survey 16th Ann. Rept., 1894-95, pt. 4, p. 523-575.

Roberts, M. R., 1971, Computer program for selective retrieval of data from a standard (formatted) STATPAC 

tape (Program No. A472F) : Accompanies Tape PB-197- 

514. See Hill, T. P., 1971, Magnetic tape containing 7,192 

chemical analyses of sedimentary rocks of the Central 

and Northwestern United States: Tape PB-197-514, 

available only from U.S. Dept. Commerce, Natl. Tech. 

Inf. Service, Springfield, Va. 22151.

Roberts, Milnor, 1902a, Tenino, in Landes, Henry, The nonmetalliferous resources of Washington, except coal: 

Washington Geol. Survey Ann. Rept. for 1901, v. 1, pt. 3, 

p. 7-10.

_____1902b, Denny Clay Company, in Landes, Henry, The 

nonmetalliferous resources of Washington, except coal: 

Washington Geol. Survey Ann. Rept. for 1901, v. 1, pt. 3, 

p. 14-17.

Robinson, W. O., Edgington, Glen, and Byers, H. G., 1935, 

Chemical studies of infertile soils derived from rocks 

high in magnesium and generally high in chromium and 

nickel: U.S. Dept. Agriculture Tech. Bull. 471, 29 p.

Roehm, J. C., 1946, Some high-calcium limestone deposits in 

southeastern Alaska: Alaska Dept. Mines Pamph. 6, 85 p.

Ross, C. P., 1934, Geology and ore deposits of the Casto quadrangle, Idaho: U.S. Geol. Survey Bull. 854, 135 p. [1935].

 1937, Geology and ore deposits of the Bayhorse region, Custer County, Idaho: U.S. Geol. Survey Bull. 877, 

161 p. [1938].

 1947, Geology of the Borah Peak quadrangle, Idaho: 

Geol. Soc. America Bull., v. 58, no. 12, p. 1085-1160.

 1962, Stratified rocks in south-central Idaho: Idaho 

Bur. Mines and Geology Pamph. 125, 126 p.

 1963, The Belt series in Montana, with a geologic 

map, compiled by B. A. L. Skipp, and a section on Paleontologic criteria, by Richard Rezak: U.S. Geol. Survey 

Prof. Paper 346, 122 p. [1964].

Ross, C. S., 1926, The optical properties and chemical composition of glauconite: U.S. Natl. Mus. Proc., v. 69, no. 

2628, p. 1-15.

Ross, C. S., and Hendricks, S. B., 1945, Minerals of the 

montmorillonite group, their origin and relation to soils 

and clays: U.S. Geol. Survey Prof. Paper 205-B, p. 

23-79 [1946].

Ross, C. S., and Kerr, P. F., 1930, The kaolin minerals: U.S. 

Geol. Survey Prof. Paper 165-E, p. 151-176.

Ross, C. S., and Shannon, E. V., 1925, The chemical composition and optical properties of beidellite: Washington 

Acad. Sci. Jour., v. 15, no. 21, p. 467-468.

Russell, I. C., 1901a, Geology and water resources of Nez 

Perce County, Idaho, Pt. 1: U.S. Geol. Survey WaterSupply Paper 53, p. 1-85.

_____1901b, Geology and water resources of Nez Perce 

County, Idaho, Pt. 2: U.S. Geol. Survey Water-Supply 

Paper 54, p. 91-141.

_____1902, Geology and water resources of the Snake 

River Plains of Idaho: U.S.. Geol. Survey Bull. 199, 

192 p.

-1903, Notes on the geology of southwestern Idaho

and southeastern Oregon: U.S. Geol. Survey Bull. 217,

83 p. 

Russell, T. C., 1949, Mining of phosphate rock at Conda,

Idaho: Mining Eng., v. 1, no. 8, p. 279-282. 

Rutledge, F. A., Thorne, R. L., Kerns, W. H., and Mulligan,

J. J., 1953, Preliminary report Nonmetallic deposits

accessible to the Alaska Railroad as possible sources of

raw materials for the construction industry: U.S. Bur.

Mines Rept. Inv. 4932, 129 p. 

Sainsbury, C. L., 1961, Geology of part of the Craig C-2

quadrangle and adjoining areas, Prince of Wales Island,

southeastern Alaska: U.S. Geol. Survey Bull. 1058-H,

p. 299-362. 

Savage, C. N., 1961, Geology and mineral resources of Bonneville County: Idaho Bur. Mines and Geology County

Rept. 5, 108 p. 

_____1965, Economic geology of carbonate rocks adjacent

to the Snake River south of Lewiston, Idaho: Idaho Bur.

Mines and Geology Mineral Resources Rept. 10, 26 p. 

Schaller, W. T., 1907, Mineralogical notes: Am. Jour. Sci.,

4th ser., v. 24, no. 140, p. 152-158. 

Scheid, V. E., 1952, Stockton and Stanley Hill clay deposits,

Kootenai County, Idaho: U.S. Geol. Survey open-file

report, 21 p. 

Scheid, V. E., Hosterman, J. W., and Sohn, I. G., 1945,

Excelsior high-alumina clay deposit, Spokane County,

Washington: U.S. Geol. Survey open-file report, 73 p. 

Scheid, V. E., Sohn, I. G., and Hosterman, J. W., 1951, Camas

Prairie clay deposits, Lewis and Idaho Counties, Idaho:

U.S. Geol. Survey open-file report, 22 p. 

Schenck, H. G., 1927, Diatoms in western Oregon shales:

Econ. Geology, v. 22, no. 6, p. 565-568.

Schneider, E. A., 1888, An analysis of a soil from Washington Territory, and some remarks on the utility of soil

analysis: Am. Jour. Sci., 3d ser., v. 36, no. 214, p.

236-247. 

Seitz, J. F., 1959, Geology of Geikie Inlet area, Glacier Bay,

Alaska: U.S. Geol. Survey Bull. 1058-C, p. 61-120. 

Selvig, W. A., and Gibson, F. H., 1956, Analyses of ash from

United States coals [2d ed.]: U.S. Bur. Mines Bull. 567,

33 p.
310 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Service, A. L., and Popoff, C. C., 1964, An evaluation of the 

western phosphate industry and its resources; Pt. 1, 

Introductory review: U.S. Bur. Mines Rept. Inv. 6485, 

86 p.

Shannon, E. V., 1920, The occurrence of bindhiemite as an 

ore mineral: Econ. Geology, v. 15, no. 1, p. 88-93.

_____1926, The minerals of Idaho: U.S. Natl. Mus. Bull. 

131, 483 p.

Shedd, Solon, 1902, The iron ores of Washington: Washington 

Geol. Survey Ann. Rept. for 1901, v. 1, pt. 4, 65 p.

 1903, Building and ornamental stones of Washington: Washington Geol. Survey Ann. Rept. for 1902, v. 2, 

pt. 1, 163 p.

_____1910, The clays of the State of Washington, their 

geology, mineralogy, and technology: Pullman, Wash., 

Washington State College, 341 p.

-1913, Cement materials and industry in the State

of Washington: Washington Geol. Survey Bull. 4, 268 p.

Sheldon, R. P., 1963, Physical stratigraphy and mineral resources of Permian rocks in western Wyoming: U.S. 

Geol. Survey Prof. Paper 313-B, p. 49-273.

Sheldon, R. P., Warner, M. A., Thompson, M. E., and Peirce, 

H. W., 1953, Stratigraphic sections of the Phosphoria 

formation in Idaho, 1949, Pt. 1: U.S. Geol. Survey Circ. 

304, 30 p.

Silliman, Benjamin, Jr., 1873, Mineralogical notes on Utah, 

California, and Nevada, with a description of priceite, 

a new borate of lime: Am. Jour. Sci., 3d Ser., v. 6, no. 

32, p. 126-133.

Skeels, F. H., 1920, A preliminary report on the clays of 

Idaho: Idaho Bur. Mines and Geology Bull. 2, 74 p.

Skinner, K. G., Dammann, A. A., Swift, R. E., Eyerly, G. B., 

and Shuck, G. R., Jr., 1944, Diatomites of the Pacific 

Northwest as filter-aids: U.S. Bur. Mines Bull. 460, 87 p.

Skipp, B. A. L., 1961, Interpretation of sedimentary features 

in Brazer Limestone (Mississippian) near Mackay, Custer County, Idaho: Am. Assoc. Petroleum Geologists 

Bull., v. 45, pt. 1, no. 3, p. 376-389.

Smart, R. A., Waring, R. G., Cheney, T. M., and Sheldon, 

R. P., 1954, Stratigraphic sections of the Phosphoria 

formation in Idaho, 1950-51: U.S. Geol. Survey Circ. 327, 

22 p.

Smith, G. O., 1904, Description of the Mount Stuart quadrangle [Washington]: U.S. Geol. Survey Geol. Atlas, 

Folio 106, 10 p.

Smith, G. 0., and Calkins, F. C., 1906, Description of the 

Snoqualmie quadrangle [Washington]: U.S. Geol. Survey Geol. Atlas, Folio 139, 14 p.

Smith, G. 0., and Willis, Bailey, 1900, The Clealum iron ores, 

Washington: Soc. Mining Engineers Trans., v. 30, p. 

356-366 [1901].

Smith, W. D., 1932, Diatomaceous earth in Oregon: Econ. 

Geology, v. 27, no. 8, p. 704-715.

Snavely, P. D., Jr., Brown, R. D., Jr., Roberts, A. E., and 

Rau, W. W., 1958, Geology and coal resources of the 

Centralia-Chehalis district, Washington, with a section on 

Microscopical character of the Centralia-Chehalis coal, by 

J. M. Schopf: U.S. Geol. Survey Bull. 1053, 159 p.

Snavely, P. D., Jr., Rau, W. W., and Wagner, H. C., 1964, 

Miocene stratigraphy of the Yaquina Bay area, Newport, 

Oregon: Ore Bin, v. 26, no. 8, p. 133-151.

Snyder, G. L., 1959, Geology of Little Sitkin Island, Alaska: 

U.S. Geol. Survey Bull. 1028-H, p. 169-210.

Speil, Sidney, Berkelhamer, L. H., Pask, J. A., and Davies,

Ben, 1945, Differential thermal analysis, its application

to clays and other aluminous minerals: U.S. Bur. Mines

Tech. Paper 664, 81 p. 

Stafford, 0. F., 1904, The mineral resources and mineral

industry of Oregon for 1903: Oregon Univ., Bull., new

ser., v. 1, no. 4, 112 p. 

Stearns, H. T., 1931, Geology and water resources of the

middle Deschutes River basin, Oregon: U.S. Geol. Survey

Water-Supply Paper 637-D, p. 125-212. 

Stickney, W. A., and Wells, R. R., 1955, Beneficiation of

western phosphate ores: U.S. Bur. Mines Rept. Inv. 5098,

13 p. 

Stone, R. W., and others, 1920, Gypsum deposits of the United

States: U.S. Geol. Survey Bull. 697, 326 p. 

Swanson, R. W., Carswell, L. D., Sheldon, R. P., and Cheney,

T. M., 1956, Stratigraphic sections of the Phosphoria

formation, 1953: U.S. Geol. Survey Circ. 375, 30 p. 

Taber, Stephen, 1943, Perennially frozen ground in Alaska,

its origin and history: Geol. Soc. America Bull., v. 54,

no. 10, p. 1433-1548. 

The Ore Bin. See Oregon Department Geology and Mineral

Industries, Ore Bin. 

Thorsen, G. W., 1966, Lime Mountain deposit, in Danner,

W. R., Limestone resources of western Washington:

Washington Div. Mines and Geology Bull. 52, p. 341-343. 

Tourtelot, H. A., and Tailleur, I. L., 1965, Oil yield and

chemical composition of shale from northern Alaska:

U.S. Geol. Survey open-file report, 17 p. [1966]. 

Town, J. W., 1966, Petrographic and flotation studies on the

Meade Peak, Idaho, phosphate samples: U.S. Bur. Mines

Rept. Inv. 6751, 16 p. 

Tullis, E. L., and Laney, F. B., 1933, The composition and

origin of certain commercial clays of northern Idaho:

Econ. Geology, v. 28, no. 5, p. 480-495. 

Twenhofel, W. S., 1953, Potential Alaskan mineral resources

for proposed electrochemical and electrometallurgical industries in the upper Lynn Canal area, Alaska: U.S.

Geol. Survey Circ. 252, 14 p. 

Tyler, S. A., 1931, The petrography of some bottom samples

from the North Pacific Ocean: Jour. Sed. Petrology, v. 1,

no. 1, p. 12-22. 

Ugolini, F. C., Tedrow, J. C. F., and Grant, C. L., 1963, Soils

of the northern Brooks Range, Alaska; Pt. 2, Soils

derived from black shale: Soil Sci., v. 95, no. 2, p.

115-123. 

Umpleby, J. B., 1914, The genesis of the Mackay copper

deposits, Idaho: Econ. Geology, v. 9, no. 4, p. 307-358. 

______1917, Geology and ore deposits of the Mackay region,

Idaho: U.S. Geol. Survey Prof. Paper 97, 129 p. 

Verhoogen, Jean, 1937, Mount St. Helens, a recent Cascade

volcano: California Univ. Dept. Geol. Sci. Bull., v. 24,

no. 9, p. 263-302. 

Vincent, K. C., and Holmes, D. T., 1952, Concentration of

oxide manganese ores from the vicinity of Cleveland,

Bannock County, Idaho: U.S. Bur. Mines Rept. Inv.

4884, 14 p.

Wagner, N. S., 1958, Limestone occurrences in eastern Oregon: Ore Bin, v. 20, no. 5, p. 43-47. 

Wahrhaftig, Clyde, 1958, Quaternary geology of the Nenana

River valley and adjacent parts of the Alaska Range:

U.S. Geol. Survey Prof. Paper 293-A, p. 1-78. 

Wahrhaftig, Clyde, and Black, R. F., 1958, Engineering

geology along part of the Alaska Railroad: U.S. Geol.

Survey Prof. Paper 293-B, p. 79-118.
REFERENCES CITED 311

Walker, T. L., and Parsons, A. L., 1927, Notes on Canadian 

minerals Tremolite, clinohumite, stromeyerite, natron, 

and hexahydrite: Toronto Univ. Studies Geol. Ser., no. 

24, p. 15-23.

Walsted, J. P., 1954, Metallurgical tests on Scappoose (Oregon) iron ore: U.S. Bur. Mines Kept. Inv. 5079, 46 p.

 1955, Special pig irons for the Pacific Northwest:

U.S. Bur. Mines Kept. Inv. 5120, 14 p. 

Warfield, R. S., 1962, Some nonmetallic mineral resources for

Alaska's construction industry: U.S. Bur. Mines Kept.

Inv. 6002, 25 p. 

Waring, G. A., 1908, Geology and water resources of a portion

of south-central Oregon: U.S. Geol. Survey Water-Supply

Paper 220, 86 p.

 1947, Nonmetalliferous deposits in the Alaska Railroad belt: U.S. Geol. Survey Circ. 18, 10 p.

Washington Department of Conservation and Development, 

1940, Olympic peninsula manganese: Washington Div. 

Mines and Geology Rept. Inv. 1, 30 p.

Waters, A. C., 1932, A petrologic and structural study of the 

Swakane gneiss, Entiat Mountains, Washington: Jour. 

Geology, v. 40, no. 7, p. 604-633.

Weaver, C. E., 1920, The mineral resources of Stevens County: Washington Geol. Survey Bull. 20, 350 p.

Weitz, J. H., 1942, High-grade dolomite deposits in the United 

States: U.S. Bur. Mines Inf. Circ. 7226, 86 p.

Wells, R. C., 1937, Analyses of rocks and minerals from the 

laboratory of the United States Geological Survey, 

1914-36: U.S. Geol. Survey Bull. 878, 134 p.

Wells, R. R., and Agey, W. W., 1947, Concentration of oxide 

manganese ore from Sheep Mountain property, Durkee 

district, Oregon: U.S. Bur. Mines Rept. Inv. 4149, 7 p.

Wheeler, G. V., and Burkhardt, W., 1950, Semiquantitative 

spectrographic analyses, in Analytical data on reference 

clay minerals: Am. Petroleum Inst. Research Proj. 49, 

Clay Mineral Standards Prelim. Rept. 7, sec. 2, p. 71-90.

Wheeler, H. A., 1896, Clay deposits: Missouri Geol. Survey, 

v. 11, 622 p.

Whitehouse, U. G., Jeffrey, L. M., and Debbrecht, J. D., 1960, 

Differential settling tendencies of clay minerals in saline 

waters in Swineford, Ada, ed., Clays and clay minerals, 

Natl. Conf. Clays and Clay Minerals, 7th, Washington, 

D.C., 1958, Proc.: New York, Pergamon Press, Internat. 

Earth Sci. Ser. Mon. 5, p. 1-79.

Whitfield, J. E., 1887, Analyses of some natural borates and 

borosilicates: Am. Jour. Sci., 3d ser., v. 34, no. 202, p. 

281-287.

Whittier, W. H., 1917, An investigation of the iron ore 

resources of the Northwest: Washington Univ. Bur. 

Indus. Research Bull. 2, 128 p.

Whitwell, G. E., and Patty, E. N., ,1921, The magnesite 

deposits of Washington, their occurrence and technology: 

Washington Geol. Survey Bull. 25, 194 p.

Wilcox, R. E., 1959, Some effects of recent volcanic ash falls, 

with especial reference to Alaska: U.S. Geol. Survey 

Bull. 1028-N, p. 409-476.

Williams, Howel, 1942, The geology of Crater Lake National 

Park, Oregon, with a reconnaissance of the Cascade 

Range southward to Mount Shasta: Carnegie Inst. Washington Pub. 540, 162 p.

Williams, I. A., 1914, Limestone deposits in Oregon, in The 

mineral resources of Oregon: Oregon Bur. Mines and 

Geology, v. 1, no. 7, p. 52-70.

Williams, I. A., and Parks, H. M., 1923, The limonite iron 

ores of Columbia County, Oregon, in The mineral resources of Oregon: Oregon Bur. Mines and Geology, v. 

3, no. 3, p. 3-24.

Williamson, D. R., and Burgin, Lorraine, 1960, Pumice and 

pumicite: Colorado School Mines Mineral Industries 

Bull., v. 3, no. 3, 12 p.

Wilson, Hewitt, 1923, The clays and shales of Washington, 

their technology and uses: Washington Univ. Eng. Expt. 

Sta. Bull. 18, 224 p.

_____1929, Ochers and mineral pigments of the Pacific 

Northwest Occurrence, possible methods of preparation, 

and testing of ochers, siennas, and colored clays: U.S. 

Bur. Mines Bull. 304, 74 p.

.1934, Kaolin and china clay in the Pacific Northwest: Washington Univ. Eng. Expt. Sta. Bull. 76, 184 p.

Wilson, Hewitt, and Skinner, K. G., 1937, Occurrence, properties, and preparation of limestone and chalk for whiting: U.S. Bur. Mines Bull. 395, 160 p.

Wilson, Hewitt, Skinner, K. G., and Couch, A. H., 1942, Silica 

sands of Washington: Washington Univ. Eng. Expt. Sta. 

Bull. 108, 76 p.

Wilson, Hewitt, and Treasher, R. C., 1938, Preliminary report 

of some of the refractory clays of western Oregon: 

Oregon Dept. Geology and Mineral Industries Bull. 6, 

93 p.

Winchell, A. N., 1914, Petrology and mineral resources of 

Jackson and Josephine Counties, Oregon, in The mineral 

resources of Oregon: Oregon Bur. Mines and Geology, 

v. 1, no. 5, 265 p.

Wright, C. W., 1907, Lode mining in southeastern Alaska: 

U.S. Geol. Survey Bull. 314-C, p. 47-72.

_____1908, The building stones and materials of southeastern Alaska: U.S. Geol. Survey Bull. 345, p. 116-126. 

.1915, Geology and ore deposits of Copper Mountain

and Kasaan Peninsula, Alaska: U.S. Geol. Survey Prof.

Paper 87, 110 p. 

Wright, F. E., 1915, Obsidian from Hrafntinnuhryggur,

Iceland, its lithophysae and surface markings: Geol. Soc.

America Bull., v. 26, p. 255-286. 

Yale, C. G., and Stone, R. W., 1921, Magnesite, in Nonmetals,

Pt. 2 of Mineral resources of the United States, 1918:

U.S. Geol. Survey Mineral Resources, U.S., p. 141-158. 

_____1923, Magnesite, in Nonmetals, Pt. 2 of Mineral resources of the United States, 1920: U.S. Geol. Survey

Mineral Resources, U.S., p. 1-16. 

Zapffe, Carl, 1944, Memorandum report on iron ores of the

Cle Elum district, Washington: Washington Div. Mines

and Geology Rept. Inv. 5, 27 p.

_____1949, A review Iron bearing deposits in Washington, Oregon, and Idaho: Portland, Oreg., Raw Materials

Survey, Inc., Resource Rept. 5, 89 p. 

Zies, E. G., 1929, The valley of Ten Thousand Smokes: Natl.

Geog. Soc. Contr. Tech. Papers, Katmai Ser., v. 1, no. 4,

pt. 1, 79 p. 

Zoldok, S. W., 1948, Cle Elum iron-nickel deposits, Kittitas

County, Washington: U.S. Bur. Mines Rept. Inv. 4189,

8 p.
312 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

INDEXES

The indexes are provided to make the data as 

readily available as possible for a variety of purposes 

without any single index being so large as to be 

cumbersome. They consist of indexes to stratigraphic 

names, geologic ages, rock name, actual and possible 

uses, and minor constituents.

The stratigraphic names indexed here are the 

names used in the references from which the analyses were taken. Many of the names do not represent 

the most recent usage, although some were reviewed 

for conformity to nomenclature adopted for use by 

the U.S. Geological Survey. Each page listed in the 

index refers to the page on which the descriptive 

notes appear.

The index "Analyses by Geologic Age" provides 

information as given in the original publication. No 

attempt was made to resolve uncertain age assignments or supply an age when none was stated. Pages 

listed refer to those on which the descriptive notes 

occur.

The index "Actual and Possible Uses" lists those 

uses given in the references from which the analyses 

were taken. For a large number of samples, no use 

was suggested in the reference. No interpretation 

was made of the original author's statement.

The index to minor constituents was complex to 

prepare, and perhaps not all problems were satisfactorily solved from the user's point of view. However, 

to be able to conveniently find those analyses that 

report arsenic or bismuth, by means of an index, is 

very useful. Similarly, the compounds or radicals 

not commonly reported in analyses of sedimentary 

rocks, such as potassium sulfate or bicarbonate, 

would be difficult to find without indexing. Also, an 

element, such as aluminum or calcium, is a major 

constituent in many rocks and is of interest as a

minor constituent in only a few rocks. The indexing 

of all analyses in which aluminum is reported is not 

helpful, but the selection of analyses in which aluminum is of interest as a minor constituent, thus, 

depended upon the judgment of the compilers. This 

selection by the compilers necessarily applies to other 

elements as well.

As a preliminary guide to the indexing of analyses 

in which the elements are either major or minor 

constituents (depending on the material), considerable significance was given to analyses in which the 

element was determined spectrographically, for when 

an element is present in a sample in. amounts amenable to spectrographic analysis, it generally is a 

minor constituent. The major and (or) minor constituents were divided into two indexes; the first 

index applies to analyses of rocks in the commonand mixed-rock categories, and the second, to analyses of rocks in the special-rock category.

Elements are indexed without regard to the form 

of the element as reported in the analyses. Boron, 

gallium, and other elements are commonly reported 

as the element in spectrographic analyses, but reported as the oxide if they were determined chemically. Spectrographic analyses and chemical analyses 

are separately grouped in the index, however. Such 

compounds as sodium sulfate are indexed only if 

they were reported as the compound in the original 

analyses. Many samples, the analyses of which report sodium oxide and sulfur trioxide, are just as 

likely to contain sodium sulfate as those in which 

the compound was reported.

The pages listed in the indexes refer to those on 

which the analyses occur; however, for a few samples, the data on one or two minor constituents are 

found in the descriptive notes or in the footnotes.
CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON 313

STRATIGRAPHIC NAMES

Page 

Addy Quartzite............................................................................................... II

Albion Range Group........................................................................................ 119

Amchitka Formation........................................................................................ 17

Anarchist [Group)............................................................................................ 137

Applegate Group............................................................................................. 129

Astoria Formation........................................................................................... 27, 55

Bear River Formation..................................................................................... 69

Belt Supergroup.............................................................................................. 9, 123

Birch Creek Schist.......................................................................................... 93

Boulder Creek Formation................................................................................. 133

Brazer Limestone............................................................................................ 121

Burke Formation............................................................................................. 21

Burnt River Schist, limestone........................................................................ 69, 125

Calapooya Formation....................................................................................... 205

Challis Volcanics........................................................................................... 19, 121

Chickaloon Formation...................................................................................... 257

Chffliwack Group.......... 35, 41, 44, 65, 79, 81, 87, 89, 161, 163, 165, 197, 199, 201, 202

Chuckanut Formation.................................................................. 11, 35, 59, 209, 214

Clover Creek Greenstone, limestone.................................................................. 125

Clugston Creek Limestone............................................................................... 183

Columbia River Group..................................................................................... 261

Covada Group................................................................................................. 137

Crescent Formation.................................................................................. 31, 63, 73

Deschutes Formation. 

Draney Limestone.....

9

Edna Dolomite........................................................................................ 41, 81, 169

Elkhorn Ridge Argfflite................................................................................... 125

Gerome Volcanics............................................................................................ 35

Gold Creek Quartzite ..................................................................................... 9

Grand View Dolomite...................................................................................... 121

Hammer Bluff Formation................................................................................. 31, 53

Haro Formation.............................................................................................. 39, 79

Hurwal Formation.................................................................................... 21, 37, 61

Hyde Formation.............................................................................................. 25

Jefferson Dolomite........................................................................................ 69, 121

John Day Formation....................................................................................... 29, 53

Keasey Shale.................................................................................................. 23

KinniWnic Quartzite......................................................................................... 121

Kowak Clay or Yukon Silts....................................................................... 13, 15, 45

Rummer Series............................................................................................... 11

Laketown Dolomite ......................................................................................... 121

Latah Formation........................................... 19, 21, 35, 47, 49, 57, 59, 203, 208, 209

Lincoln Creek Formation.................................?............................................... 31, 35

Lisburne [Group]..................................................................................... 67, 91, 117

Madison Limestone.......................................................................................... 119

Maitlen Phyllite, Reeves Limestone Member...................................................... 183

Page 

Martin Bridge Formation.................................................................... 21, 61, 69, 123

Mascall Formation........................................................................................... 21, 25

Matanuska Formation...................................................................................... 13

Metaline Limestone..................................................... 65, 77, 147, 149, 151, 153, 183

Metchosin Volcanics...................................................................................... 73, 228

Molalla Formation........................................................................................... 205

Myrtle Group.................................................................................................. 127

Northport Limestone............................ 43, 44, 65, 85, 87, 183, 185, 187, 189, 191, 193

Nye Mudstone................................................................................................ 27

Okmok Volcanics............................................................................................. 17

Old Dominion Limestone..................................................... 43, 85, 135, 137, 181, 183

Orofino Series............................................................................................. 119, 121

Patterson Point Formation............................................................................... 17

Payette Formation................................................................................ 9, 19, 25, 27

Peterson Limestone......................................................................................... 69

Phosphoria Formation................................................................................... 61, 255

Retort Phosphatic Shale Member................................................................ 255

Meade Peak Phosphatic Shale Member........................................................ 19,

37, 47, 61, 69, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 256 

Prichard Formation......................................................................................... 19, 21

Priest River Group....................................................................................... 77, 147

Puget Group....................................................................... 11, 31, 53, 214, 257, 259

Pulaski Formation........................................................................................... 71

Revett Formation.......................................................................................... 9, 37

Roslyn Formation............................................................................................ 55

Sadlerochit and Shublik Formations.................................................................. 13, 61

Salt Lake Formation....................................................................................... 19, 69

Saturday Mountain Formation .......................................................................... 121

Snowshoe Formation........................................................................................ 25

Soleduck Formation......................................................................................... 63, 73

St. Regis Formation........................................................................................ 21

Stensgar Dolomite...........................41, 43, 81, 83, 85 169, 171, 173, 175, 177, 179, 181

Striped Peak Formation................................................................................... 37

Sumas Shale................................................................................................... 209

Swakane Gneiss, limestone............................................................................ 71, 131

Swan Peak Quartzite....................................................................................... 9

Swauk Formation....................................................................... 11, 29, 53, 205, 207

Underlies Swauk Formation........................................................53, 220, 223, 225

Tindir Group...................................................................................... IS, 37, 67, 91

Trowbridge Formation..................................................................................... 25

Twin Creek Limestone.................................................................................... 19, 69

Wales Group................................................................................................... 91

Wallace Formation......................................................................... 19, 21, 37, 61, 63

Wells Formation............................................................................................. 119

Wilbur Tuff Lentils......................................................................................... 23

Willapa Clays .......... ................................................................:..................... 55

Yakima Basalt................................................................................................ 261

Yellowjacket Formation................................................................................... 121

ANALYSES BY GEOLOGIC AGE

Page

Holocene:

Alaska.,,.,,_.^.J ..^^...................^......................... 13,15, 17, 37, 45, 61, 67, 91

Idaho....................................................................................................... 17,21

Oregon............................................................................................. 25, 27, 231

Washington......... 53, 55, 57, 59, 65, 89, 131, 135, 153, 165, 167, 202, 229, 231, 233

Holocene-Pleistocene:

Alaska..................................................................................................... 13,47

Oregon..................................................................................................... 23, 51

Pleistocene:

Alaska......................................................................................... 13, 15, 17, 45

Idaho................................................................................................... 119, 227

Washington.......................................................29, 31, 33, 35, 53, 55, 57, 59, 147

Pleistocene-Pliocene:

Oregon........................................................................................... 49, 205, 211

Pleistocene-Miocene:

Oregon........................................................................................... 51, 217, 261'

Quaternary:

Alaska..................................................................................................... 13, 17

Quaternary Continued

Idaho................................................................................................... 119, 231

Washington............................................................................................... 35

Quaternary-Tertiary:

Alaska..................................................................................................... 17,47

Idaho....................................................................................................... 61

Oregon......................................................................................... 9, 23, 27, 127

Washington............................................................................................... 31

Pliocene:

Idaho................................................................................................ 17, 19, 69

Oregon................................................................................ 9, 27, 205, 211, 216

Pliocene-Miocene:

Idaho....................................................................................................... 19

Oregon.................................... 9, 25, 27, 53, 205, 211, 213, 215-217, 219-221, 223

Washington........................................................................................... 208, 261

Miocene:

Idaho............................................................................. 19, 21, 47, 49, 203, 261

Oregon........................................................................... 21, 23, 25, 27, 221, 261

Washington......................................... 11, 31, 33, 35, 53, 55, 57, 59, 207-209, 214
314 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Miocene or later:

Oregon............................................ 9, 25, 27, 29, 49, 51, 205, 211, 213, 215, 217

Washington............................................................................................... 33

Miocene-Oligocene:

Oregon..................................................................................................... 29, 53

Miocene-Oligocene-Eocene:

Idaho....................................................................................................... 19

Washington............................................................................................... 31

Miocene-Eocene:

Washington.............................................................................................. 31, 35

Oligocene:

Idaho....................................................................................................... 121

Oregon..................................................................................................... 27, 53-

Washington....................................................................................... 35, 77, 147

Oligocene-Eocene:

Oregon.................................................................................................. 23, 205

Washington................................................................... 11, 31, 53, 214, 257, 259

Eocene:

Oregon..................................................................................................... 23,71

Washington...........................11, 29, 31, 35, 55, 59, 63, 73, 147, 207, 209, 214, 228

Paleocene:

Alaska..................................................................................................... 257

Paleocene-Cretaceous:

Washington.......................................................................... 11, 29, 53, 205, 207

Tertiary:

Alaska........................................................................................ 15, 17, 47, 257

Idaho......................................................................................................! 259

Oregon................................................................................... 9, 23, 29, 49, 261

Washington.......................................... 35, 53, 57, 59, 65, 207, 209, 213, 215, 226

Tertiary-Cretaceous:

Washington............................................................................................... 63, 73

Cretaceous:

Alaska............................................................................................. 13, 91, 211

Idaho....................................................................................................... 69

Washington........................................................ 11, 31, 53, 65, 159, 220,223, 225

Cretaceous-Jurassic:

Alaska..................................................................................................... 259

Oregon..................................................................................................... 127

Washington....................................................................................... 41, 81, 167

Cretaceous-Mississippian:

Alaska..................................................................................................... 259

Jurassic:

Alaska............................................................................. 13, 15, 45, 47, 91, 259

Idaho........................................................................................ 19, 69, 121, 123

Oregon................................................................................................... 25, 127

Washington........................................................................................... 227, 228

Jurassic-Paleozoic:

Oregon..................................................................................................... 129

Triassic:

Alaska......................................................................................... 9, 61, 69, 117

Idaho....................................................................... 21, 37, 61, 63, 69, 121, 123

Oregon............................................................................... 69, 71, 125, 127, 129

Washington........ 29, 37, 39, 63, 65, 71, 73, 75, 77, 79, 131, 133, 139, 141, 143, 145

Triassic-Permian:

Alaska..................................................................................................... 13

Oregon..................................................................................................... 125

Washington............................................................................................... 133

Mesozoic:

Washington............................................................................................... 228

Meso zoic-Carboniferous-Devonian:

Washington............................................................................................... 137

Permian:

Alaska..................................................................................................... 117

Idaho....................................................................................................... 19,

37, 47, 61, 69, 119, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 256

Page 

Permian Continued

Oregon.................................................................................................. 71

Washington............................................................................................... 33,

39, 44, 73, 79, 87, 133, 135, 137, 155, 157, 159, 165, 167, 193, 195, 201, 202

Permian-Pennsylvanian:

Washington....................................................................................... 44, 89, 155

Permian-Pennsylvanian-Mississippian:

Alaska............................................................................................. 67, 91, 117

Permian-Mis sissippian:

Washington..........................................................................................;.... 159

Permian-Devonian:

Washington............................................ 41, 44, 65, 79, 81, 87, 155, 165, 197, 199

Pennsylvanian:

Idaho....................................................................................................... 126

Washington.......................... 35, 39, 41, 44, 65, 79, 81, 89, 155, 163, 165, 199, 201

Pennsylvanian-Devonian:

Washington........ ................................................................................. 153, 155

Mississippian:

Idaho............................................................................................. 69, 119, 121

Washington............................................................................................... 155

Carboniferous:

Oregon..................................................................................................... 129

Washington................................................ 39, 44, 73, 79, 137, 139, 159, 193, 195

Pre-Carboniferous:

Oregon............................................................................................. 37, 69, 125

Devonian:

Alaska............................................................ 13, 61, 67, 69, 93, 95, 97, 99, 117

Idaho.................................................................................................... 69, 121

Oregon...................................................................................... 37, 71, 127, 129

Washington................................................. 41, 65, 81, 87, 89, 153, 163, 199, 202

Devonian-Silurian:

Washington........................................................................................... . 81, 161

Devonian-Ordovician:

Alaska..................................................................................................... 91

Devonian-Paleozoic:

Alaska ...........13, 37, 61, 67, 69, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117

Pre-Devonian:

Alaska..................................................................................................... 61

Silurian:

Alaska.................................................................................. 45, 67, 91, 93, 117

Idaho....................................................................................................... 121

Silurian-Ordovician:

Alaska ..................................................................................................... 45

Ordovician:

Idaho...................................................................................................... 9, 121

Pre-Ordovician:

Washington............................................................................................. 71, 131

Cambrian:

Idaho....................................................................................................... 9, 121

Washington............................................................................................... 11,

43, 44, 65, 77, 85, 87, 135, 137, 147, 149, 151, 153, 181, 183, 185, 187, 

189. 191, 193

Paleozoic:

Alaska........................................................................................ 67, 69, 93, 117

Idaho................................................................................................... 119, 123

Oregon....................................................................................... 25, 63, 71, 129

Washington....................................................... 31, 65, 73, 77, 133, 137, 153, 195

Paleozoic-Precambrian:

Alaska..................................................................................................... 93

Precambrian:

Alaska......................................................................................... 13, 37, 67, 91

Idaho............................................................ 9, 19, 21, 37, 61, 63, 119, 121, 123

Washington......... 41, 43, 77, 81, 83, 85, 133, 147, 169, 171, 173, 175, 177, 179, 181

ROCK NAME

Page

Alluvium:

Idaho.......................................................................................................... 17

Argillite:

Alaska......................................................................................... 13, 15, 17, 61

Idaho ................................................................... .................................. 19, 21

Oregon..................................................................................................... 25

Washington............................................................................................... 35

Arkose:

Washington............................................................................................... 29

Basalt:

Washington............................................................................................... 261

Page 

Bauxite, bauxitic clay:

Oregon................................................................................................. 216, 217

Beidefflte:

Washington................... ........................................................................... 57

Bementite:

Washington............................................................................................... 228

Bindhiemite:

Idaho....................................................................................................... 259

Bog iron:

Oregon..................................................................................................... 221

Washington............................................................................................... 226
INDEXES 315

Page

Borate:

Oregon..................................................................................................... 259

Brannerite:

Idaho....................................................................................................... 259

Chert:

Alaska..................................................................................................... 9

Oregon..................................................................................................... 9

Washington............................................................................................... 41

Clay:

Alaska...................................................................... 13, 15, 45, 47, 61, 115, 259

Idaho.................................................................................... 19, 21, 47, 49, 203

Oregon................................ 21, 23, 25, 27, 29, 49, 51, 53, 205, 211, 213, 215, 216

Washington............................ 29, 31, 33, 35, 53, 55, 57, 59, 205, 207-209, 213-215

Coal and coal ash:

Alaska..................................................................................................... 257

Oregon..................................................................................................... 257

Washington........................................................................................... 257, 259

Conglomerate:

Washington............................................................................................... 11

Diatomaceous earth:

Alaska................................................................................................... 15, 259

Diatomite:

Oregon..................................................................................... 9, 21, 23, 25, 27

Washington................................................................................... 11, 29, 33, 35

Dolomite:

Alaska................................................. 37, 67, 69, 93, 97, 107, 109, 111, 115, 117

Idaho.................................................................................. 37, 63, 69, 121, 123

Oregon.......................................................................................... 125, 127, 129

Washington............................................................................................... 39,

41, 43, 44, 65, 73, 75, 77, 81, 83, 85, 87, 133, 139, 141, 143, 145, 147, 149, 151, 

153, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 189, 191, 193, 195, 197, 

201

Evansite:

Idaho....................................................................................................... 259

Ferruginous bauxite:

Oregon......................................................... 205, 211, 213, 215-217, 219-221, 223

Garnierite:

Oregon................................................................................................... 9, 23

Genthite:

Oregon..................................................................................................... 23, 37

Gibbsitic float:

Oregon..................................................................................................... 216

Glacial flour:

Alaska..................................................................................................... 15

Glauconite:

Oregon..................................................................................................... 49

Gneiss:

Idaho.................................................................................................

Graywacke:

Alaska.........

Washington... 

Gypsum, gypsite:

Alaska.........

Idaho...........

261

13

221, 223

225, 226

........................................................................................... 61

........................................................................................... 229

Washington............................................................................................... 229

Hausmannite:

Washington............................................................................................... 227

Hematite:

Washington............................................................................................... 225

Hydromagnesite:

Idaho....................................................................................................... 61

Iron-bearing rock:

Alaska..................................................................................................

Oregon.................................................................... 23, 49, 51, 63, 205,

Washington..................................................... 53, 55, 57, 59, 220, 223,

Kaolin:

Alaska.................................................................................................

Idaho...................................................................................................

Oregon........................................................................................... 27,

Washington.......................................................................... 11, 35, 53,

Laterite:

Oregon.......................................................... 23, 25, 211, 215, 217, 220,

Washington.................................................................................... 223,

Limestone:

Alaska.................................................................................................

37, 61, 67, 69, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113,

Idaho.........................................................r....................... 61, 69, 119,

Oregon.................................................................... 37, 63, 69, 71, 125,

Washington............................................................................................

31, 37, 39, 41, 43, 44, 53, 63, 65, 71, 73, 77, 79, 81, 85, 87, 89, 131, 

137, 139, 147, 149, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 

183, 185, 187, 189, 191, 193, 195, 197, 199, 201, 202

... 211

47

205, 211

213, 214

221, 223

225, 226

... 13,

115, 117

121, 123

127, 129

.... 29,

133, 135,

179, 181,

Limonite:

Alaska..................................................................................................... 221

Oregon.......................................................................................... 217, 221, 223

Washington..................................................................................... 59, 223, 226

Limonitic concretions or float:

Oregon................................................................................................. 221, 223

Loess:

Washington............................................................................................... 29

Magnesite:

Washington............................................................................................... 41,

43, 77, 81, 83, 85, 87, 169, 171, 173, 175, 177, 179, 181, 195, 197

Magnetite:

Washington............................................................................................... 223

Manganese, manganese-bearing rock:

Alaska..................................................................................................... 227

Idaho....................................................................................................... 227

Oregon..................................................................................................... 227

Washington............................................................................................ 227, 228

Marble:

Alaska................................................................................................... 93, 117

Idaho....................................................................................................... 119

Oregon..................................................................................................... 129

Washington.................................................. 73, 137, 139, 165, 167, 183, 1%, 197

Marl:

Alaska......................................................................................... 37, 61, 67, 91

Idaho....................................................................................................... 69

Washington............................................................................................... 147

Montmorillonite:

Washington............................................................................................... 57

Mud, mudstone:

Alaska............................................................................................... 13, 45, 61

Oregon..................................................................................................... 27

Washington............................................................................................. 65, 229

Neotocite:

Washington............................................................................................... 228

Nickel silicate, nickel-bearing rock:

Oregon..................................................................................................... 9, 261

Nontronite:

Washington............................................................................................... 57, 59

Ocher-sienna:

Washington............................................................................................... 59

Phosphorite:

Idaho................ 19, 119, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255, 256

Priceite:

Oregon................................................................................................. 259, 261

Psilomelane:

Idaho....................................................................................................... 227

Oregon..................................................................................................... 227

Pumice:

Alaska..................................................................................................... 15, 17

Idaho....................................................................................................... 19,21

Oregon..................................................................................................... 23, 27

Pyroclastic:

Alaska..................................................................................................... 47

Quartzite:

Alaska..................................................................................................... 13

Idaho .................................................................................................. 9, 21, 37

Rock salt:

Idaho....................................................................................................... 231

Saline materials:

Oregon..................................................................................................... 231

Washington........................................................................................... 231, 233

Sand, sandstone:

Alaska..................................................................................................... 13,37

Idaho .................................................................................................. 9, 19, 21

Oregon.................................................................................... 23, 27, 29, 51, 53

Washington..................................................................... 11, 31, 33, 35, 223, 226

Saprolite:

Oregon..................................................................................................... 51

Shale:

Alaska............................................................................. 13, 15, 45, 47, 61, 259

Idaho..................................................................... 19, 21, 37, 47, 49, 61,'63, 69

Oregon......................................................................................... 23, 29, 49, 51

Washington.................................... 29, 31, 33, 35, 41, 53, 55, 57, 63, 65, 205, 215

Silica rock:

Oregon..................................................................................................... 9

Silt, siltatone:

Alaska.......................................................................................... 13, 15, 17, 45

Idaho....................................................................................................... 19,21

Oregon.................................................................................................... 23, 49

Washington......................................................................................... 31, 35, 59
316 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Soil:

Page

Oregon............................................................................................. 51, 53, 261

Washington............................................................................................... 29, 55

Tasmanite:

Alaska..................................................................................................... 259

Travertine:

Idaho................................................................................................... 119, 121

Oregon..................................................................................................... 127

Washington............................................................................................... 153

Tufa:

Washington................................................................. 89, 131, 135, 165, 167, 202

Tuff, tuff-breccia:

Alaska ............................................................................................... 13, 17, 47

Page

Tuff, tuff-breccia Continued

Idaho....................................................................................................... 19

Oregon......................................................................................... 23, 25, 27, 29

Washington......................................................................................... 33, 35, 55

Volcanic ash:

Alaska..................................................................................................... 13, 15

Idaho................................................................................................. 17, 19, 21

Oregon......................................................................................... 25, 27, 29, 63

Volcanic chider.

Oregon..................................................................................................... 51

Weathered igneous rock, weathered products:

Oregon........................................................................................ 23, 25, 51, 261

ACTUAL AND POSSIBLE USE

Page 

Abrasive....................................... 3, 17, 23, 27, 205, .211, 213, 215-217, 219, 223, 226

Absorbent medium.................................................................................... 9, 11, 221

Aggregate...................................................................................................... 61, 69

Ceramic................................................................................................... 23

Concrete........................ 23, 25, 27, 33, 35, 44, 65, 87, 89, 123, 135, 197, 199, 201

Lightweight......................................................................................... 9, 11, 13

Agricultural limestone........................................................................"............. 41,

71, 77, 81, 91, 93, 117, 119, 125, 129, 147, 153, 155, 165, 167, 189, 195, 202 

Agricultural phosphorite................................................................. 237, 245, 253, 255

Alumina, source.............................................................................................. 19,

21, 47, 49, 53, 57, 203, 205, 207, 208, 211, 213-217, 219-221, 223, 225

Ballast......................................................... 44, 61, 65, 69, 87, 89, 123, 197, 199, 201

Bonding clay................................................................................................. 27, 209

Brick.............................. 9, 19, 21, 27, 29, 31, 33, 35, 47, 49, 53, 55, 57, 59, 209, 214

Face....................................... 19, 21, 25, 31, 33, 35, 47, 49, 53, 59, 203, 208, 209

Firebrick................................. 9, 21, 31, 33, 47, 49, 53, 57, 59, 203, 207-209, 214

Building stone........................... 9, 27, 43, 63, 85, 93, 119, 123, 125, 127, 129, 167, 183

See also Decorative stone and dimension stone.

Calcium carbide manufacture.................................. 81, 91, 129, 133, 149, 167, 191, 193

Cement material............................................................................................. 9,

11, 13, 15, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 41, 43-45, 53, 55, 57, 59, 61, 

63, 65, 69, 71, 77, 79, 81, 87, 89, 91, 93, 117, 119, 121, 123, 125, 127, 129, 135, 

149, 151, 153, 165, 157, 159, 165, 167, 181, 183, 185, 187, 189, 191, 193, 195, 

197, 201, 202, 205, 211, 213, 215-217, 219, 223 

See also Portland cement. 

Ceramic material........................... 27, 31, 33, 53, 59, 149, 185, 187, 195, 209, 211, 214

China.......................................................................................... 31, 47, 53, 214

Glaze............................................................................................ 27, 29, 53, 59

Whiting...................................................................... 87, 147, 149, 187, 195, 197

Structural ware......................................................................................... 47, 49

Chemical industry........................................................................................... 9,

91, 93, 117, 119, 121, 125, 129, 133, 137, 139, 149, 155, 167, 181, 185, 189, 191, 

193, 237, 245, 253, 255 

Chrome, chromite, or chromium, source....................................... 23, 51, 225, 237, 239

Conduits, electric.......................................................................................... 33, 208

Construction................................................................................................... 15, 31

Concrete blocks......................................................................................... 51

Crushed stone....... 39, 43, 65, 73, 75, 77, 85, 135, 137, 139, 141, 143, 145, 181, 183

Cryolite, snythetic. See Fluorspar.

Decorative or ornamental stone........................................................................ 11,

29, 37, 41, 44, 71, 73, 81, 117, 121, 129, 131, 135, 153, 165, 167, 195, 197, 202 

See also Building stone and dimension stone. 

Dimension stone.............................................................................................. 11,

23, 35, 55, 65, 85, 87, 117, 119, 121, 125, 133, 179, 183, 185, 195, 197 

Building. See also Building stone and dimension stone. 

Draintile................................................................ 19, 21, 31, 35, 47, 49, 55, 59, 203

Elemental phosphorous, source......................................................................... 237

Epsomite, source......................................................................................... 229, 233

Face brick. See Brick, face.

Ferromanganese, source................................................................................... 227

Ferrotitanium.................................................................... 211, 215-217, 219-221, 223

Fertilizer............................................................ 51, 147, 237, 239, 245, 251, 253, 255

Filter, filtration......................................... 9, 11, 21, 25, 27, 29, 33, 35, 205, 209, 211

Ferronickel, source................................................................ 23, 25, 51, 53, 225, 261

Filler.................................................... 9, 11, 21, 33, 35, 129, 133, 149, 205, 209, 211

Firebrick. See Brick, firebrick.

Fluorine, source .......................................................................................... 251, 253

Fluorspar, artificial or synthetic cryolite........................................................ 237,239

Flux.

47, 61, 69, 79, 81, 89, 91, 121, 123, 125, 127, 129, 135, 147, 165, 159, 161, 163,

165, 167, 195, 197, 201

Gallium, source............................................................. 47, 49, 57, 203, 207, 208, 214

Gem stones, source......................................................................................... 51

Glass, glass industry............................... 9, 11, 19, 23, 27, 29, 117, 129, 149, 165, 167

Glaze............................................................................................................ 63, 59

Grogg............................................................................................................ 27

Gypsite, source........................................................................................... 229, 233

Ilmenite....................................................................... 47, 49, 57, 203, 207, 208, 214

Insulation, insulating tiles and blocks, acoustical board....................................... 9,

11, 15, 21, 23, 25, 27, 29, 31, 33, 35, 165, 181 

Iron, source................................................... 57, 59, 216, 217, 219-221, 223, 225, 226

Lime. ................................................................................................... 35,

37, 39, 41, 44, 61, 69, 71, 77, 87, 91, 93, 119, 121, 123, 125, 127, 129, 135, 147, 

149, 165, 157, 159, 161, 167, 179, 181, 197, 201 

Builders lime................................ 137, 139, 147, 185, 187, 189, 191, 193, 195, 197

Limestone:

Agricultural. See Agricultural limestone. 

Metallurgical. See Metallurgical limestone.

Magnesia or magnesium, source ...................................................................

69, 81, 83, 85, 129, 135, 139, 141, 143, 145, 169, 171, 173, 175, 177, 

183, 189, 191, 195, 197

Manganese, source......................................................................................

Magnetite, source.........................................................................................

Metallurgical........................................................................................... 9,

Limestone...........................91, 93, 117, 133, 137, 139, 149, 165, 185, 189,

Phosphorite ........................................................................19, 237, 245,

Mineral filler........ 9, 87, 137, 139, 147, 149, 181, 183, 185, 187, 189, 191, 193,

Mineral wool. See Rock wool.

Molding sand...............................................................................................

Monumental stone.................................................................................. 93,

227, 228

51

149, 169

191, 193

253, 255

195, 197

.. 11, 27

119, 129

Nickel, source..................................................................................... 9, 23, 51, 225

Ornamental stone. See Decorative stone.

Oil refining............................................................... 205, 211, 213, 215-217, 219, 223

Paper manufacture. See Pulp and paper manufacture.

Phosphorous, source............................................................................. 237, 239, 255

Pigment.................................................................................. 59, 205, 215, 221, 226

Plaster..................................................................................... 23, 27, 181, 189, 195

Polishing powder. See Abrasive. 

Porcelain........................................................................................................ 205

Portland cement material................................................................................. 13,

15, 21, 29, 31, 33, 35, 37, 39, 41, 45, 47, 51, 53, 65, 57, 59, 61, 63, 65, 67, 

69, 71, 73, 77, 79, 81, 85, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 

115, 117, 119, 121, 123, 127, 129, 131, 133, 137, 139, 147, 163, 155, 161, 163, 

165, 179, 181, 183, 187, 189, 191, 193, 195, 197, 199, 202 

Cement. See also Cement material 

Pottery.........................19, 21, 25, 29, 31, 33, 35, 47, 49, 51, 63, 57, 59, 209, 211, 214

Pulp and paper industry.................................................................................. 11,

79, 87, 89, 93, 117, 123, 127, 129, 133, 137, 139, 149, 163, 155, 157, 159, 167, 

181, 183, 185, 187, 189, 191, 193, 195, 197, 199 

Putty......................................................................................................... 147, 197

Quicklime................................................................................................... 127, 129
INDEXES 317

Refractories.................................................................................................... 9,

19, 21, 31, 33, 35, 39, 43, 47, 49, 53, 57, 61, 65, 73, 75, 77, 85, 129, 135, 137, 

139, 141, 143, 145, 169, 179, 181, 183, 197, 203, 205, 207-209, 211, 213-217, 

219,223 

Riprap.......................................................................... 44, 65, 87, 89, 197, 199, 201

Road material....................................... 25, 44, 51, 65, 87, 89, 119, 157, 197, 199, 201

Rock wool........................................... 13, 15, 45, 47, 61, 67, 69, 93, 97, 99, 117, 167

Roofing......................................................... 21, 29, 31, 47, 49, 71, 73, 131, 189, 203

Salt, domestic and livestock............................................................................. 231

Sewer pipe........................................ 21, 31, 33, 35, 47, 49, 53, 55, 57, 203, 208, 214

Silica and silica brick, source...................................................................... 9, 11, 35

Sodium carbonate, sodium bicarbonate, source.................................................... 231

Stoneware........................................... 19, 21, 29, 31, 35, 47, 49, 51, 53, 57, 203, 209

Structural products.......... 21, 31, 33, 35, 47, 49, 53, 57, 59, 93, 117, 179, 203, 208, 214

Page 

Stucco .................................................................................................. 87, 189, 195

Sugar manufacture.......................................................................................... 81,

87, 119, 121, 123, 127, 133, 149, 167, 185, 187, 189, 191, 193, 195, 197 

Sulfuric acid, source...................................................................................... 57, 226

Terra cotta...................... 19, 21, 31, 33, 35, 47, 49, 51, 53, 57, 59, 203, 208, 209, 214

Terrazzo................................................................................... 71, 73, 131, 133, 189

Tile.......................................................... 29, 31, 33, 35, 47, 53, 55, 57, 59, 181, 214

Titanium, source.................................................. 51, 208, 216, 217, 219-221, 223, 226

Vanadium, source ............................................................ 19, 237, 239, 251, 253, 255

Water treatment..................................................................................... 91, 93, 117

Whiteware................................................................................. 21, 47, 49, 205, 211

Whiting................................................................................................ 87, 147, 197

Ceramic. See Ceramic material.

CHEMICAL AND SPECTROGRAPHIC ANALYSES FOR MINOR CONSTITUENTS, COMPOUNDS, AND RADICALS (OXIDES REPORTED 

AS ELEMENTS) IN ROCKS OF THE COMMON- AND MIXED-ROCK CATEGORIES

[Constituents looked for and not detected or if below limiting values are given in italics; constituents may appear more than once on a page and may appear in more than one form]

Antimony....................................................................................................... 14,

16, 18, 30, 33, 36, 38, 40, 44, 57, 62, 64, 70, 73, 76, 78, 80, 84, 86, 89, ISO, 

132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 

187, 189, 191, 193, 195, 196, 198, 201, 202

Arsenic.......................................................................................................... 8,

13, 14, 18, 22, SO, 33, 36, 38, 40, 44, 57, 62, 64, 70, 73, 76, 78, 80, 84, 86, 

89, 130, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 

182,185, 187, 189, 191, 193, 195, 196, 198, 201, 202

Barium........................................................................................................... 13,

14, 16, 18-20, 22, 28, SO, 32, 33, 36, 38, 39, 40, 4S, 46, 51, 52, 56, 58, 61, 62, 

64, 70, 73, 76, 78, 80, 84, 85, 88, 90, 130, 132, 136, 139, 146, 148, 152, 154, 

156, 158, 163, 164, 166, 169, 182, 185, 187, 189, 191, 193, 195, 196, 198, 201, 

202

Beryllium....................................................................................................... 13,

16, 18, 20, 30, 33, 36, 38, 40, 44, 46, 56, 58, 62, 64, 70, 73, 76, 78, 80, 84, 

86, 88, 130, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 

182,185, 187, 189, 191,193, 195, 196, 198, 201, 202

Bismuth......................................................................................................... 13,

16, 18, 30, 33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, ISO, 132, 

136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 

189, 191, 193, 195, 196, 198, 201, 202

Boron ............................................................................................................ 13,

16, 18, 20, 30, 33, 36, 38, 40, 44, 51, 56, 58, 62, 64, 70, 73, 76, 78, 80, 84, 

86, 88, 130, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 

182, 185, 187,189, 191, 193, 195, 196, 198, 201, 202

Cadmium........................................................................................................ 14,

16, 18, 30, 33, 36, 38, 40, 44, 51, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 

132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 168, 182, 185, 

187, 189, 191, 193, 195, 196, 198, 201, 202

Cerium........................................................................................................... 30,

33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, ISO, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 191, 

193, 195, 196, 198, 201, 202

Cesium........................................................................................................... 16,

Dysprosium Continued

146, 148, 152, 154, 156, 158, 160, 168* 164, 166, 169, 182, 185, 187, 189, 191, 

193, 195, 196, 198, 201, 202

Erbium. ................................................................................................ 30,

Europium.

33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 191, 

193, 195, 196, 198, 201, 202 

..................................................................................................... 30,

33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 191, 

193, 195, 196, 198, 201, 202 

Fluorine............. ................................................. 12, 16, 18, 19, 20, 46, 60, 68, 118

Gadolinium..................................................................................................... 30,

33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 191, 

193, 195, 196, 198, 201, 202

Gallium.......................................................................................................... 13,

16, 18, 30, 33, 36, 38, 40, 44, 46, 56, 58, 61, 62, 64, 70, 73, 76, 78, 80, 84, 

86, 88, 130, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 

182,185,187, 189, 191, 193, 195, 196, 198, 201, 202

Germanium.

18, 30, 33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130,

139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 168, 182, 185,

191, 193, 196, 198, 201, 205

..... 16, 

132, 136, 

187, 189,

Gold

18, 22, 33, 36, 38, 40, 44, 50, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88,

136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182,

187, 189, 191, 193, 195, 196, 198, 201, 202

..... 16, 

130, 132, 

184, 185,

Hafnium.

33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, ISO, 132, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 

193, 195, 196, 198, 201, 202

..... 30, 

136, 139, 

189, 191,

Holmium.

30, 33, 36, 38, 40, 44, 56, 58, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 

136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 168, 182, 185, 187, 

189, 191, 193, 196, 198, 201, 202

Chromium...................................................................................................... 13,

16, 18, 20, 22-25, 28, 30, 33, 36, 38-41, 43, 46, 50-52, 56, 57, 58, 60-62, 64, 

70, 73, 76, 78, 80, 84, 86, 88, 118, 130-133, 136, 137, 139, 146, 148, 152, 154, 

156-158, 160, 163, 164, 166, 167, 169, 182, 183, 185, 187, 189, 191, 193, 195, 

196, 198, 201, 202

Cobalt..................................................................................................../....... 13,

16, 18, 20, 22, 23, 30, 33, 36, 38, 40, 41, 44, 46, 50, 52, 56, 58, 61, 62, 64, 

70, 73, 76, 78, 80, 84, 86, 88, ISO, 132, 136, 139, 146, 148, 152, 154, 156, 158, 

160, 163, 164, 166, 169, 182, 185, 187, 189, 191, 193, 195, 196, 198, 201, 202

Columbium..................................................................................................... 16,

18, 30, 33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 

139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 

191, 193, 195, 196, 198, 201, 202

Copper........................................................................................................... 13,

14, 16, 18, 20, 22, 30, 33, 36, 38-41, 44, 46, 51, 54, 56, 58, 61, 62, 64, 70, 73, 

76, 78-SO, 84, 86, 88, 130-133, 136, 137, 139, 146-149, 152, 154, 156-158, 160, 

163, 164, 166, 167, 169, 182, 183, 185, 187, 189, 191, 193, 195, 196, 198, 199, 

201,202

Dysprosium ................................................................................................... SO,

SS, S6, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136,139,

Indium.

Indium ,

33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136,

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189,

193, 195, 196, 198, 201, 202

18, 30, 33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, SO, 84, 86, 88, 130, 132, 

139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 

191, 193, 195, 196, 198, 201, 202

33, 36, 38, 40, 44, 51, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, ISO, 132, 136, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 

193, 195, 196, 198, 201, 202

Lanthanum.

Lead,

Lithium.

16, 20, 30, 33, 36, 38, 40, 44, 46, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88,

132, 136, 139, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185,

189, 191,193, 195,196, 198, 201, 202

14, 16, 18, 20, SO, SS, 36, 38, 40, 44, 46, 56, 57, 58, 62, 64, 70, 73, 76 

80, 84, 86, 88, 130, 132, 133, 136, 139, 146, 148, 152, 154, 156, 158, 160, 

164, 166, 169, 182, 184, 185, 187, 189, 191, 193, 196,198, 201, 202

20, SO, SS, 36, 38, 40, 44, 56, 58, 62, 64, 68, 70, 73, 76, 78, 80, 84, 86, 

124, 126, 128, ISO, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 

166, 169, 182, 185, 187, 189, 191, 193, 195, 196, 198, 201, 2O2

139,

191,

16,

136,

189,

30,

139,

191,

13,

130,

187,

13,

, 78, 

163,

18, 

, 88, 

164,
318 CHEMICAL COMPOSITION OF SEDIMENTARY ROCKS IN ALASKA, IDAHO, OREGON, AND WASHINGTON

Lutetium........................................................................................................ 50,

55, 56, 5S, 40, 44, 62, 64, 70, 75, 76, 78, 80, 84, 86, 88, 750, 752, 756, 759, 

746, 748, 152, 754, 756, 158, 160, 765, 764, 766, 769, 782, 785, 787, 789, 797, 

795, 795, 796, 798, 201, 202

Magnesium.................................................................................................... 18, 52

Manganese...................................................................................................... 13,

18, 30, 33, 36, 38-^1, 44, 46, 51, 52, 56, 58, 61, 62, 64, 70, 73, 76, 78, 80, 85, 

86, 88, 130-133, 136, 137, 139, 146, 148, 149, 152, 154, 156-158, 160, 163, 164, 

166, 167, 169, 182, 183, 185, 187, 189, 191, 193, 195, 196, 198, 199, 201, 202

Mercury........................................................................................................ 13, 78

Molybdenum................................................................................................... 13,

14, 16, 18, 50, 55, 56, 58, 40, 44, 46, 52, 56, 58, 60, 67, 62, 64, 70, 75, 76, 

78, 80, 85, 86, 88, 130, 752, 156, 759, 746, 748, 152, 754, 756, 758, 160, 765, 

764, 766, 769, 182, 785, 787, 789, 791, 795, 795, 796, 1P8, 207, 202

Neodymium.................................................................................................... 50,

55, 56, 58, 40, 44, 62, 64, 70, 75, 76, 78, 80, 84, 86, 88, 750, 152, 156, 759, 

146, 748, 752, 154, 156, 158, 760, 765, 764, 166, 769, 782, 785, 787, 789, 797, 

795, 795, 796, 798, 207, 202

Nickel............................................................................................................ 8,

13, 16, 18, 20, 22-24, 30, 33, 36, 38-^1, 44, 46, 50-52, 56-58, 61, 62, 64, 70, 

73, 76, 78, 80, 84, 86, 88, 750, 131-133, 756, 159, 746, 147, 148, 152, 154, 156, 

757, 158, 160, 163, 164, 166, 167, 769, 182, 185, 787, 189, 197, 193, 795, 796, 

198, 199, 201, 202

Niobium. See Columbium.

Nitrogen....................................................................................................... 8, 13

Osmium.......................................................................................................... 50,

55, 56, 58, 40, 44, 57, 62, 64, 70, 75, 76, 78, 80, 84, 86, 88, 750, 752, 756, 759, 

146, 148, 152, 754, 756, 758, 760, 765, 764, 766, 769, 782, 185, 187, 789, 197, 

795, 795, 796, 198, 207, 202

Palladium....................................................................................................... is,

30, 33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 766, 769, 782, 185, 187, 789, 197, 

795, 795, 796, 798, 207, 202

Platinum........................................................................................................ 75,

16, 18, 22, 50, 55, 56, 58, 40, 44, 50, 51, 62, 64, 70, 73, 76, 78, 80, 84, 86, 

88, 130, 132, 136, 139, 146, 148, 152, 154, 756, 158, 760, 165, 164, 766, 769, 

182, 785, 787, 789, 797, 195, 195, 796, 198, 201, 202

Potassium....................................................................................................... 30,

33, 36, 38, 40, 41, 44, 51, 62, 64, 70, 72, 75, 76, 77, 78, 80, 81, 84, 86, 88, 

89, 130, 132, 136, 139, 146, 148, 752, 754, 156, 158, 162, 765, 764, 165, 166, 

769, 182-184, 185, 186, 787, 188, 189, 791, 192, 795, 194, 795, .196, 198, 200, 

207, 202

Praseodymium............................................................................................... 50,

55, 56, 58, 40, 44, 62, 64, 70, 75, 76, 78, 80, 84, 86, 89, 750, 752, 756, 759, 

746, 748, 752, 754, 756, 758, 760, 765, 764, 166, 769, 782, 785, 787, 789, 197, 

195. 795, 796, 798, 207, 202

Rhenium...................................................................................................... 76,

50, 55, 56, 58, 40, 44, 57, 62, 64, 70, 75, 76, 78, 80, 84, 86, 88, 150, 752, 156, 

759, 746, 748, 752, 754, 756, 758, 760, 765, 764, 766, 769, 782, 785, 787, 789, 

791, 795, 795, 796, 798, 207, 202

Rhodium.

33, 36, 38, 40, 44, 51, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 785, 787, 789, 797, 

193, 195, 196, 198, 201, 202 

Rubidium ...................................................................................................... 56, 58

Ruthenium..

Samarium.

55, 56, 58, 40, 44, 62, 64, 70, 75, 76, 78, 80, 84, 86, 88, 150, 752, 756,

746, 148, 752, 154, 156, 758, 760, 165, 164, 766, 769, 782, 785, 787, 189,

795, 795, 796, 798, 201, 202

55, 56, 58, 40, 44, 62, 64, 70, 75, 76, 78, 80, 84, 86, 88, 750, 752, 756,

746, 748, 752, 754, 756, 758, 760, 765, 764, 766, 169, 782, 785, 787, 189,

195, 795, 196, 798, 207, 202

30,

139,

791,

139,

191,

Scandium........................................................................................................ 16,

18, 20, 50, 55, 36, 38, 40, 44, 46, 51, 56, 58, 62, 64, 70, 75, 76, 78, 80,

86, 88, 130, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 766,

182, 785, 787, 189, 191, 195, 195, 796, 798, 207, 202

Selenium. 

Silver......

18, 30, 33, 56, 38, 59, 40, 41, 44, 46, 56, 58, 62, 64, 70, 73, 76, 78, 79; 

84, 86, 88, 150, 132, 156, i59, 146-148, 152, 754, 756, 158, 160, 165, 764, 

769, 182, 785, 184, 185, 187, 189, 797, 193, 795, 196, 798, 207, 202

169,

57

16,

80,

166,

Page

Sodium........................................................................................................... 18,

30, 33, 36, 38-^1, 44, 46, 51, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 89, 130-133, 

136, 137, 139, 146, 148, 152, 154, 156, 158, 160, 162-167, 169, 182-186, 787, 

188, 189, 191-194, 795, 196, 198, 200-202

Strontium..................................................................................................... 13,

14, 16, 18, 20, 28, 30, 33, 34, 36, 38-^1, 44, 46, 51, 56, 58, 61, 62, 64, 68, 70, 

73, 76, 78, 79, 80, 84, 86, 88, 90, 124, 726, 128, 130-133, 136, 137, 139, 146-149, 

152, 154, 156-158, 160, 163, 164, 166, 167, 169, 182, 183, 185, 187, 189, 191, 

193, 195, 196, 198, 199, 201, 202

Sulfur............................................................................................................ 40,

44, 72, 77, 78, 81, 86, 89, 130, 132, 136, 139, 156, 162, 165, 183, 184, 186, 188, 

192, 194, 196, 198, 200

Tantalum........................................................................................................ 16,

78, 30, 33, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 

139, 146, 148, 152, 154, 756, 758, 760, 765, 164, 166, 169, 182, 785, 787, 789, 

197, 795, 195, 196, 798, 201, 202

Tellurium....................................................................................................... SO,

55, 36, 38, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 169, 182, 185, 187, 189, 191, 

193, 195, 196, 198, 201, 202

Terbium.

55, 56, 58, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139,

146, 148, 152, 154, 156, 158, 160, 163, 164, 766, 769, 782, 185, 787, 789, 797,

795, 795, 796, 798, 207, 202

Thallium.

50, .55, 56, 58, 40, 44, 56, 58, 62, 64, 70, 73, 76, 78, 80, 84 

1S6, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 166, 

189, 191, 193, 195, 196, 198, 201, 202

..... 16,

750, 752,

785, 787,

Thorium.

50, 55, 56, 58, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132,

146, 148, 152, 154, 756, 758, 760, 765, 764, 766, 769, 782, 785, 787,

795, 195, 196, 198, 201, 202

16,

756, 759,

789, 797,

Thulium.

Tin.

55, 56, 58, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 136, 139, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 766, 769, 782, 785, 787, 789, 797, 

795, 795, 796, 798, 201, 202 

..................................................................................................... 13,

14, 76, 18, 50, 55, 56, 58, 40, 44, 61, 62, 64, 70, 73, 76, 78, 80, 84, 86, 89, 

130, 132, 136, 139, 146, 148, 152, 154, 156, 158, 160, 163, 164, 766, 769, 782, 

785, 787, 789, 797, 795, 795, 796, 798, 207, 202

Titanium........................................................................................................ 18,

30, 33, 36, 38-^1, 44, 46, 51, 52, 62, 64, 70, 72, 73, 76, 77, 78, 80, 81, 84, 86, 

88, 89, 130-133, 136, 137, 139, 146, 148, 149, 152, 154, 156, 158, 160, 162-167, 

169, 182-189, 191-196, 198, 200-202

Tungsten........................................................................................................ 76,

756, 

189,

18,

759,

797,

?0, 55, 36, 38, 40, 44, 62, 64, 70, 75, 76, 78, 80, 84, 86, 89, 130, 132, 

146, 148, 152, 154, 156, 158, 160, 163, 164, 766, 769, 782, 785, 787, 

795, 795, 79ff, 798, 207, 202

Uranium..

50, 55, 56, 58, 40, 44, 62, 64, 68, 70, 75, 76, 78, 80, 84, 86, 88, 130, 752,

759, 746, 148, 152, 154, 156, 158, 160, 163, 164, 766, 769, 782, 785, 787,

191, 195, 195, 196, 798, 207, 202

Vanadium.

16, 18-20, 28, 30, 33, 36, 38-^1, 44, 46, 51, 52, 56, 58, 60-62, 64, 70, 73, 

78, 80, 85, 86, 88, 130, 757, 752, 136, 137, 759, 148, 752, 154, 156, 158, 

765, 164, 166, 167, 769, 182, 785, 787, 789, 797, 193, 795, 796, 198, 207,

Ytterbium.

20, 50, 55, 36, 58, 40, 44, 62, 64, 70, 73, 76, 78, 80, 84, 86, 88, 130, 132, 

139, 146, 148, 152, 154, 756, 758, 760, 16'S, 164, 766, 769, 782, 785, 787, 

197, 795, 795, 796, 798, 207, 202

76,

756,

789,

13,

76,

160,

202

16,

756,

Yttrium.

18, 20, 50, 55, 36, 58, 40, 44, 56, 58, 62, 64, 70, 75, 76, 78, 80, 85, 86,

150, 152, 756, 746, 748, 152, 754, 756, 758, 760, 765, 164, 766, 769, 182,

787, 789, 797, 795, 795, 796, 198, 207, 202

Zinc..

14, 76, 3Q, 33, 36, 38, 40, 44, 46, 56, 57, 58, 61, 62, 64, 70, 75, 76,, 78, 

84, 86, 88, 150, 152, 756, 759, 746, 14«, 752, 754, 756, 758, 760,, 765, 764 

769, 782, 184, 785, 787, 789, 791, 195, 795, 796, 798, 207, 202

Zirconium.

16, 18-20, 22, 28, 30, 33, 36, 38-^1, 44, 46, 50, 52, 56, 58, 62, 64, 70, 73 

78, 79, 80, 84, 86, 88, 150, 132, 756, 159, 146, 147, 748, 752, 754, 756, 

160, 163, 764, 166, 169, 182, 185, 187, 189, 791, 795, 195, 796, 198, 207,

16,

88, 

185,

13,

80, 

166,

13,

,76, 

158,
INDEXES 319

CHEMICAL AND SPECTROGRAPfflC ANALYSES FOR MINOR CONSTITUENTS, COMPOUNDS, AND RADICALS (OXIDES REPORTED

AS ELEMENTS) IN ROCKS OF THE SPECIAL-ROCK CATEGORY

[Constituents looked for and not detected or if below limiting values are given in italics; constituents may appear more than once on a page and may appear in more than one form]

Page 

Antimony............... 204, 226, 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 255, 258

Apenic.......................................................................................................... 204,

220, 222, 224-228, 235, 237, 239, 241, 

258,260

Bariun

l>, 2.46, 247, 249, 251, 254, 255,

215,

Manganese....................... 218, 220, 235, 237, 239, 241, 242, 245-247, 249, 251, 253-255

Mercury........................ Wit, 235, 257, 259, 241, 244, 246, 247, 249, 251, 255, 257, 259

Molybdenum..... 218, 220, 227, 235-237, 239, 241, 242, 245, 247, 249, 251, 253, 254, 255, 259

Neodymium........................................ 235, 237, 239, 241, 242, 244, 247, 249, 251, 255

Nickel............................................................................................................ 215,

218, 220, 221, 224, 227, 228, 235, 237, 239, 241, 242, 245, 246, 247, 249, 251,

253, 254-256, 258, 260 

Beryllium............................. 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 253, 255

Bismuth...................................... 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 255

Boron ............. 220, 230, 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 253, 255, 258

Bromine......................................................................................................... 230

Cadmium....................... 235, 237, 239, 241, 242, 245, 246, 247, 249, 251, 253, 255, 260

Cerium............................................... 255, 237, 259, 241, 242, 247, 249, 251, 255, 259

Cesium............................................... 255, 257, 259, 241, 242, 244, 247, 249, 251, 255

Chlorine.................................................................. 230, 232, 236, 238, 254, 258, 260

Chromium ... 215, 218, 220, 222, 224, 226, 234, 235-242, 244-247, 249, 251, 253-255, 258, 260 

Cobalt............................................................................................................ 222,

224, 226, 227, 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 253, 254, 255,

258,260 

Columbium........................... 235, 287, 259, 241, 242, 244, 246, 247, 249, 251,

Copper..

218, 221, 222, 224, 226-228, 235, 237, 239, 241, 242, 245, 247, 249, 

258,260

251,

253, 255 

... 215, 

253-255,

Dysprosium........................................ 235, 237, 239, 242, 244, 247, 249, 251, 255

Erbium.............................................. 255, 237, 239, 241, 242, 24j

Europium........................................... 255, 257, 259, 241, 242, 244, 247,

251, 255

249, 251, 255

Fluorine............................................. 234, 236, 238, 240, 244, 246, 248, 250, 252, 254

Gadolinium ......................................... 255, 257, 259, 241, 242, 244, 247, 249, 251, 255

Gallium................................ 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 255, 258

Germanium......................................... 255, 257, 259, 241, 244, 246, 247, 249, 251, 255

Gold.................................... 235, 257, 259, 241, 242, 244, 246, 247, 249, 251, 255, 259

Hafnium.................................................... 235, 237, 239, 241, 242, 247, 249, 251, 255

Holmium............................................ 235, 257, 259, 241, 242, 244, 247, 249, 251, 255

Indium............................................... 255, 257, 259, 241, 244, 246, 247, 249, 251, 255

Iodine........................................................................................................ 230, 254

Iridium .............................................. 224, 255, 257, 259, 241, 247, 249, 251, 255, 260

Lanthanum......................................... 235, 237, 239, 241, 243, 245, 247, 249, 251, 255

Lead.............................................................................................................. 222,

226, 227, 228, 235, 237, 239, 241, 243, 245, 246, 247, 249, 251, 253, 254, 255,

258,259 

Lithium................................ 250, 255, 257, 259, 241, 242, 244, 246, 247, 249, 251, 255

Lutetium............................................ 235, 237, 239, 241, 242, 244, 247, 249, 251, 255

Magnesium.............................................................. 218, 235, 241, 242, 244, 246, 249

218, 220, 222, 224, 226-228, 235, 237, 239, 241, 242, 245, 247, 249, 251, 253-255,

258,260

Niobium. See Columbium. 

Nitrogen.............................................................................................. 254, 256-258

Osmium..................................................... 255, 257, 239, 241, 247, 249, 251, 255, 260

Palladium......................................................... 255, 257, 259, 241, 247, 249, 251, 255

Platinum ....................... 224, 255, 257, 259, 241, 242, 244, 246, 247, 249, 251, 255, 260

Potassium.............................................................................. 231, 235, 241, 242, 249

Praseodymium..................................... 235, 237, 239, 241, 242, 244, 247, 249, 251, 255

Rhenium ................................................... 255, 257, 259, 241, 247, 249, 251, 255, 260

Rhodium ................................................... 255, 257, 259, 241, 247, 249, 251, 255, 260

Rubidium ........................................... 2S5, 257, 259, 241, 242, 244, 247, 249, 251, 255

Ruthenium........................................................ 255, 257, 259, 241, 247, 249, 251, 255

Samarium........................................... 235, 237, 239, 241, 242, 244, 247, 249, 251, 255

'Scandium....................... 235, 237, 239, 241, 242, 244, 247, 249, 251, 253, 255, 258, 260

'Selenium............................................ 226, 235, 237, 239, 241, 247, 249, 251, 255, 258

Silver.................................... 235, 237, 239, 241, 242, 245, 247, 249, 251, 253-255, 259

Sodium...................................................... 235, 237, 241, 242, 244, 246, 249, 253, 255

Strontium......... 218, 220, 235, 237, 239, 241, 242, 245, 247, 249, 251, 253, 255, 258-260

Tantalum..................................... 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 255

Tellurium.................................... 255, 257, 259, 241, 242, 244, 247, 249, 251, 255, 259

Terbium............................................. 255, 257, 259, 241, 242, 244, 247, 249, 251, 255

Thallium............................................. 235, 237, 239, 241, 242, 244, 247, 249, 251, 255

Thorium...................................... 235, 237, 259, 241, 242, 247, 24S, 249, 251, 255, 259

Thulium ............................................. 235, 257, 259, 241, 242, 244, 247, 249, 251, 255

Tin...................................... 235, 257, 259, 241, 242, 245, 246, 247, 249, 251, 253, 255

Titanium............................................ 218, 235, 237, 241, 242, 244, 246, 249, 253, 255

Tungsten....................... 204, 227, 255, 257, 239, 241, 242, 244, 246, 247, 249, 251, 255

Uranium.............................................. 234, 236, 238-240, 246, 248, 250, 254, 258, 259

Vanadium....................................................................................................... 215,

218, 220, 235, 237, 239, 241, 242, 244, 246, 247, 249, 251, 253, 255, 258, 260

Ytterbium .......................................... 235, 237, 239, 241, 243, 244, 247, 249, 251, 255

Yttrium......................... 235, 237, 239, 241, 242, 245, 247, 249, 251, 253, 255, 259, 260

Zinc............................................................................................................... 221,

222, 226, 227, 228, 235, 237, 239, 241, 242, 245, 247, 249, 251, 253-255, 258

Zirconium....................................................................................................... 204,

206, 212, 215, 218, 220, 226, 235, 237, 239, 241, 242, 245, 247, 249, 251, 253, 

255, 259, 260

U.S. GOVERNMENT PRINTING OFFICE : 1972 O-487-187