GEOLOGICAL SURVEY CIRCULAR 110 

STRATIGRAPHIC SECTIONS OF THE 

PHOSPHORIA FORMATION IN 

WYOMING, 1947-48 

By V. E. McKelvey, L. E. Smith, R. A. Hopp~ and F. C. Armstrong 

UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary 

GEOLOGICAL SURVEY 

W. E. Wrather, Director 

GEOLOGICAL SURVEY CIRCULAR 210 

STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA FORMATION 

IN WYOMING, 1947-48 

By V. E. McKelvey, L E. Smith, R. A.·Hoppin, and F. C. Armstroq 

'Ibis report COD08l'D8 work done partly ~of tbe 

U. S. Atomic Energy Commiaaion 

and ia publiahed with tbe permiuion of tbe CommiMon 

Washington, D. C.,llla 

Free on applieation to the Geoloeieal Surve)', WMbiqton 25 D. C. 

CONTENTS 

Lot no. Page 

Introduction ..•......................................•.................................... 

Acknowledgments .................................................................... . Stratigraphy of the Phosphoria formation in southwestern Wyoming ...........•................. 

Stratigraphic sections ...................................•.................•.............• · 

References ............................................................................. . 

1 

1 

1 

1 

3 

Tables of stratigraphic sections 

Layland Canyon ....•................................................................. Spectrographic analyses .......................................................... . 

Coal Canyon ......................•.................................................. 

Additional analyses ...........................................................•... Additional analyses of selected samples .................................•........... 

Spectrographic analyses ...................................•....................... 

North Fork of Pine Creek ..........................................................•... 

Spectrographic analyses .................•...............................•......... 

Middle Fork of Pine Creek ....................................•..•.................... 

Spectrographic analyses .........................................................•. 

Leefe .................................................................. ~ ••........... Spectrographic analyses ...........•........................ ,' ..................... . 

1202 5 

9 

1201 11 

16 

20 

21 

1204 24 

27 

1205 28 

32 

1213 33 

35 

ILLUSTRATIONS 

Plate 1. Phosphoria formation outcrops in Wyoming and localities sampled for phosphate....... Faces 1 

Figure 1. Generalized section of the Phosphoria formation at Coal Canyon..................... 1201 2 

STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA FORMATION 

IN WYOMING, 1947-48 

INTRODUCTION 

As part of a comprehensive investigation of the 

phosphate deposits of the western field begun in 194 7, 

the U. S. Geological Survey has measured and sampled 

the Permian Pr.:>sphoria formation at many localities 

in Wyoming and adjacent states. Because these data 

will not be fully synthesized for many years, segments of the data, accompanied by little or no interpretation, will be published as preliminary reports 

as they are assembled. This report, which contains 

abstracts of some of the sections measured in western Wyoming (pl. 1), is one of this series. The field 

and laboratory procedures adopted in these investigations are described rather fully in a companion report (McKelvey and others, l952a). 

Many people have taken part in this investigation. R. M. Campbell, R. A. Gulbrandsen, R. A. 

Harris, D. M. Larrabee, F. W. 0' Malley, 0. A. Payne, 

R. S. Sears, R. P. Sheldon, and R. A. Smart participated in the description of the strata and the collection 

of the samples referred to inthis report. D. B. Dimick, 

H. A. Larsen, and T. K. Rigby assisted in the preparation of exposures and the crushing and splitting of 

samples in the field. The laboratory preparation of 

samples for chemical analysis was done in Denver, 

Colo., under the direction of W. P. Huleatt. 

Most of the P 20 5 and acid-insoluble analyses were 

made for the Surveyoythe U.S. BureauofMines at the 

Northwest Electrodevelopment Laboratory, Albany, 

Oreg., under the direction of S. M. Shelton and M. L. 

Wright. Most of the Al 2

0 3, Fe 203 , and loss-on-ignition 

analyses were made bythe Trace Elements Section laboratory of the Survey in Washington, D. C., under the 

direction of J. C. Rabbitt by chemists I. Barlow, A. 

Caemmerer, J. Greene, F. S. Grimaldi, N. Guttag, 

H. Levine, H. Mela, Jr., and R. G. Milkey, and most 

of the spectrographic reports were prepared in this laboratory by C. L. Waring. The samples from one locality 

(Coal Canyon) were analyzed for P 20 5, Al203' Fe203' 

V 0 5

, F, loss on ignition, and aciCJ insoluole in tl'ie 

cfiemical Laboratory of the Tennessee Valley Authority 

at Wilson Dam, Alabama, and spectrographically by 

D. M. Mortimer, of the Bureau of Mines at Albany. 

Compilation of the data has been largely by R. P. 

Sheldon and F. D. Frieske under the supervision of 

R. W. Swanson. Organization of the tabular data has 

been largely by Anita Cozzetto. 

Acknowledgments 

Special thanks are due W. W. Rubey, Helmuth Wedow, and J. Steele Williams, who contributed much in 

the way of advice and suggestions in planning and organization of the field program. The cost of both the field 

and laboratory investigations has been borne partly by 

the Division of Raw Materials of the Atomic Energy 

Commission. This support is gratefully acknowledged. 

M3.ny local residents, property owners, and 

phosphate companies furnished information and 

services and gave access to property. D. L. King 

of the San Francisco Chemical Company has been 

especially helpful in this regard. 

STRATIGRAPHY OF THE PHOSPHORIA 

FORMATION IN SOUTHWESTERN WYOMING 

The Phosphoria formation in southwestern 

Wyoming consists of a lower phosphatic shale member, 

95 to 145 feet in thickness; overlain by the Rex chert 

member, cherty limestone 65 to 145 feet in thickness; and 

capped by an upper shale member, 15 to 60 feet in 

thickness. It overlies the Pennsylvanian Wells formation and underlies the Traissic Dinwoody formation. 

Although the Wells formation consists largely of 

quartzose sandstone, calcareous in part, the upper 

25 feet or more is dark gray limestone. It is equivalent to the upper member of the Wells formation in 

Idaho and may be the correlative of the lowermost 

member (A member) of the Phosphoria formation in 

Montana and northwestern Wyoming and the lower 

limestone member of the Park City formation in Utah 

(McKelvey, 1949). The Dinwoody formation consists 

of limestone, calcareous siltstone, and sandstone. 

Most of the phosphatic layers are in the lower 

phosphatic shale member of the Phosphoria formation, 

but the upper shale member contains thin layers of 

phosphatic chert. The full thickness of the formation 

has been measured and sampled at Layland Canyon, 

Coal Canyon, and Middle Fork of Pine Creek. The 

phosphatic shale member contains many layers which 

persist, particularly in a north-south direction, over 

wide areas, but they may be grouped as shown in 

figure 1. 

The correlation of the beds of the phosphatic 

shale member with those in adjacent parts of Idaho 

and Utah has already been discussed in preliminary 

fashion (McKelvey and 9thers, l952a and b) and will 

be considered more fully later. Suffice it to say here 

that whereas many of thft layers throughout this member in western Wyoming may be identified in northern 

Utah, their identification in Idaho is unce'rtain except 

in the upper part of the member. 

STRATIGRAPHIC SECTIONS 

Analytical data and abstracts of stratigraphic 

sections measured at five localities follow. Their 

locations, as well as the locations of others to be reported later, are shown in plate 1. 

The semiquantitative spectrographic analyses 

made in the laboratories of both the Geological Survey 

and the Bureau of Mines are based upon comparisons 

with a standard plate representing known quantities of 

the elements tested for and made at the sa~osure. 

Greater sensitivities for many elements can be obtained 
30 

T 

100 

2 

PERCENT "z 0a 

20 10 0 LITHOL08Y 

THICK- AVER.II8E 

NESS p2 OliN' 

Ill FEET PERCENT 

Mudstone 

OEsCRIPTIOit 

Dinwoody formation 

Upper shale member 

Phosphate rock: pisolitic, medium-hard, arayisb-brown, thick-bedded; chert at base 

Mudstoae: bard, pyish-browo and browoisb-black, thio- aod thick-bedded; some 

medium-bard interbedded dolomite 

Phosphate rock: oolitic and non-oolitic, bard, black, thin- aod thick-bedded; 

13 cberc and mudstone interbeds 

Rez chert member 

Chen and limestone: bard, black, thicli-bedded chert; bard, btowaiab-py, thickbedded limestone represents about 10 percent of unit 

Phosphatic shale member 

phosphate 

MUdstone; medium-bard, brownish-black to black, fissile to thin-bedded; phosphate rock at base 

Wells forma_~ 

Limestone 

Figure 1. -Generalized section of the Phosphoria formation at Coal Canyon 

2 
b7 additional exposures. The standard sensitivities for 

the elements noted in this report are as follows: 

Percent 

Element Geological Survey Bureau Of Mines 

Al .......... 0.0001 . ......... o.oos 

Sb .......... • 001 . ......... • OS 

As .......... . 1 . ......... . 1 

Ba ·········· . 001 .......... • 08 

Be ·········· . 001 .......... • 001 

Bi .......... • 001 . ......... . ooz 

B .......... • 001 . ......... • 001 

Cd .. .. ...... . 01 . ......... • 1 

Cs .......... 1.0 . ......... Ca .......... • 001 . ......... . 01 

Ce .......... • 1 . ......... Cr .......... . 001 . ......... • oz 

Co .......... • 001 ·········· .01 

Cb .......... • 01 ·········· .01 

Cu .......... • 0001 . ......... . 001 

Dy .......... • 01 . ......... Er .......... . 01 . ......... F .......... . 1* . ········· Gd .......... • 01 . ......... Ga .......... • 01 . ......... .OS 

Ge .......... . 001 . ......... • 01 

Au .......... . ......... .01 

Hf ........... • 1 . ......... In .......... • 001 ········· . • OS 

Fe .......... • 001 . ... ······ • oos 

La .......... . 01 . ......... Pb .......... • 01 . ......... • 1 

Li .......... • 1 ·········. • z 

Mg .......... . 0001 . ......... • 001 

Mn .......... • 001 . ......... • 004 

Hg .......... • 1 . ......... • 1 

Mo .......... . 001 . ......... .004 

Na .......... • 01 . .......... Ni .......... • 001 . ......... • ().1 

p .......... • 1 . ......... pt .......... • 01 . ......... K .......... • 1 . ......... Pr .......... • 01 . ......... Re .......... . 1 . ......... Rb .......... 10.0 . ......... Sm .......... • 1 . ......... Sc .......... • 1 . ......... Si .......... • 0001 .•••••.•.• • ooz 

Ag ·········· • 001 .......... • 001 

Na .......... • 1 . ......... .os 

Sr .......... .01 . ... ······ . 1 

Ta .......... ~ 1 . ......... 1. 0 

Tb .......... • 1 . ......... Tl .... ······ • 1 ·········· Th .......... . 1 . ......... Sn ............ .01 . ......... • 01 

Ti ·········· • 001 .......... • ooz 

w .......... • 1 . ......... • 1 

u ·········· . 1 .......... v ·········· • 01 .......... .01 

y .......... • 001 

Zn ·········· ·········· • 001 ·········· .os 

Zr .......... • 001 . ········· • 003 

• A third exposure is required . 

3 

REFERENCES 

Huleatt, William P., 19SO, Automatic sample 

preparation saves time, money for U.S. G. S.: 

Eng. and Min. Jour., vol. 151, no. 6, pp. 6Z-67. 

McKelvey, V. E., 1949, Geological Studies of the 

western Phosphate field: Am. Inst. Min. Met. 

Eng. Mining Trans., vol. 184, pp. Z70-Z79 . 

McKelvey, V. E., Davidson, D. F., Sheldon, R. P., 

Hoppin, R. A. , Campbell, R. M. , and Weeks, 

R. A., 19SZa, Stratigraphic sections of the P}losphoria formation in Idaho-first report: U. S • 

Geo1. Survey Circular Z08 • 

McKelvey, V. E., Smith, L. E., Kinney, D. M., 

Huddle, J. W., Hosford, G. F., Sears, R. S., 

Sprouse, D. P., and Stewart, M. D., 19SZb, 

Stratigraphic sections of the Phosphoria formation in Utah: U. S. Geol. Survey Circular Z11 . 

Ul 

LAYLAND CANYON, WYOMING. LOT NO. 1202. 

Phosphatic shale member of Phosphoria formation sampled and upper shale member measured in hand trenches in Layland Canyon, sec. 19, and 

in next canyon to south, sec. 30, T. 27 N., R. 119 W., Lincoln County, Wyoming, on east limb of anticline. Beds P-1 through P-82 sampled in trench in 

lower shale member 300 feet above canyon bottom on north side of Layland Canyon; beds P-83 through R-1 sampled and upper shale member measured 

in trench 25 feet above canyon bottom on north side of canyon t mile to south. Beds in north trench strike N. zoo W. and dip 34° E. at Wells contact and 

strike N. 15° W. and dip 76° E. in upper part of section; beds in south trench strike N. 13° W. and dip 80° E. Phosphatic shale member measured by 

D. M. Larrabee, R. A. Hoppin, and L. E. Smith a~d sampled by R. P. Sheldon, R. A. Gulbrandsen, R. S. Sears, and 0. A. Payne in June and July 1947; 

upper shale member measured by F. C. Armstrong in September 1947. Samples analyzed for P 2o5 and acid insoluble by U. S. Bureau of Mines 

Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, U.S. Geological Survey, Washington, D. c. 

Bed 

I I Sampll Thickness 

------

no. Rock description 

Cumulative Thickness x 

PzOs 

thickness percent P2 0 no. (feet) (feet) - -

(cumulat1vef 

Dinwoody formation--basal bed only 

'Jtd-11 Lilll~stone, sandy I -- I 2.0 I -- I -- I -- I -- I -- I 2.0 I -- Upper shale member of Phosphoria formation 

u- 12 Mudstone -- 0.7 -- -- -- -- -- 0.7 -- u- 11 Mudstone, contains phosphatic limestone 

concretion at base -- 0.8 -- -- -- -- -- 1.5 -- u- 10 Mudstone, calcareous, cherty -- 1.0 -- -- -- -- -- 2. 5 -- u- 9 Mudstone -- 3.2 -- -- -- -- -- 5. 7 -- u- 8 Mudstone -- 2.2 -- -- -- -- -- 7.9 --

u- ., Mudstone -- 1.1 -- -- -- -- -- 9.0 -- u- 6 Mudstone, calcareous -- 0.75 -- -- -- -- -- 9.75 -- u- 5 Mudstone -- 1.4 -- -- -- -- -- 11. 15 -- u- 4 Mudstone -- 0.35 -- -- -- -- -- 11. 50 -- u- 3 Limestone, sandy -- 0.4 -- -- -- -- -- 11.90 --

u- z Phosphate rock. cherty -- 1.1 -- -- -- -- -- 13.00 -- u- 1 Phosphate rock, cherty -- 1. 5 -- -- -- -- -- 14.50 -- -L.-

Rex chert member of the Phosphoria formation--basal beds only 

R- 1 I Chert, contains calcite veinlets RAH- 147-47 10.0 7.00 

Phosphatic shale member of Phosphoria formation 

P-105 Limestone, argillaceous RAH- 148-47 6.0 1. 7 -- -- -- 33.5 6.0 10.20 

P-104 Phosphate rock RAH-149-47 0.3 24.0 -- -- -- 19.4 6. 3 17 .. 40 

P-103 Mudstone, contains phosphatic mudstone 

lens 0. Z foot thick RAH- 150-47 1.0 4.9 -- -- -- 67.9 7. 3 22.30 

P-102 Mudstone RAH- 151-47 0.6 1. 2 -- -- -- 75.3 7. 9 23.02 

P-101 Mudstone, calcareous RAH- 152-47 2.6 o. 5 -- -- -- 49.5 10. 5 24.32 

P-100 Mudstone RAH- 153-47 1.8 4. z -- -- -- 70.2 12.3 31.88 
Bed Sample Thickness Chemical analyses (percent) Cumulative Thickness x Rock description no. (feet) Pz05 Al2o3 Fe2o3 

Loss on Acid thickness percent P2 o no. 5 ignition insoluble (feet) (cumulatlve1 

P- 99 Phosphate rock RAB- 154-47 1.5 24.8 2.4 4.47 6.8 18.6 13.8 69.08 

P- 98 Phosphate rock and mudstone RAH-155-47 1. 15 21.0 2.8 4.02 6.4 31. 1 14.95 93.23 

P- 97 Phosphate rock RAH- 156-47 1.4 29.8 1.5 4.48 6.6 9. 5 16.35 134.95 

P- 96 Phosphate rock RAH- 157-47 3. 1 31.5 1.1 3. 15 7. 5 4.6 19.45 Z32.60 

P- 95 Phosphate rock RAB- 158-47 2.3 29.6 1.9 0.79 8.30 9.9 21. 75 300.68 

P- 94 Mudstone, phosphatic RAH- 159-47 0.7 12.Z 6.7 5. 74 7. 8 so. 1 22.45 309.ZZ 

P- 93 Limestone, argillaceous RAH-160-47 z.z 0. 3 4.5 4.45 16.8 40.2 24.65 309.88 

P- 9Z Phosphate rock RAH- 161-47 I. 1 29.6 z. 1 3.82 8.0 9.0 Z5.75 34Z.44 

P- 91 Phosphate rock, mudstone , and 

limestone RAH-16Z-47 1. z Z0.6 3.9 1. 04 9.50 Z6. 1 Z6.95 367. 16 

P- 90 Phosphate rock RAH- 163-47 Z.3 28.4 2. 5 3.76 7. 0 11.7 29.Z5 432.48 

P- 89 Phosphate rock, argillaceous RAH- 164-47 1. 2 20.6 5.3 4.24 6.5 31. 5 30.45 457.20 

P- 88 Phosphate rock RAH- 165-47 2. 1 30. 1 2. 4 4.86 5. 1 11.5 32.55 520.41 

P- 87 Mudstone. calcareous and phosphate 

rock RAH- 166-47 1. 0 9.3 5.4 5.58 15.4 40.3 33.55 529. 71 

P- 86 Mudstone, calcareous RAH- 167-47 2.2 2. 3 6.9 4.83 18.2 51.0 35.75 534. 77 

P- 85 Phosphate rock, calcareous and 

limestone RAH- 168-47 o.s 20.8 2.5 4.89 17.6 6. 1 36.ZS 545. 17 

aP- 84 Mudstone, phosphatic RAH-169-47 1. 5 13.1 9.0 6.2Z 13.8 36.3 37.75 565.7Z 

P- 83 Lime stone, "hanging-wall limestone" RAH-170-47 3.Z o. 1 -- -- -- 10.4 40.95 567.96 

P- az Mudstone, phosphatic LES- 258-47 0.3 8.9 -- -- -- 52.3 41.25 570.63 

P- 81 Mudstone LES- 257-47 0.4 o. 5 -- -- -- 79.4 41.65 570.83 

P- 80 Mudstone LES- Z56-47 0.65 0.4 -- -- -- 64. 1 4Z.30 571.09 

P- 79 Mudstone LES- Z55-47 o.s 0.4 -- -- -- 5Z. 3 42.80 571.Z9 

P- 78 Mudstone LES- Z54-47 0.5 o. 6 -- -- -- 74. 1 43.30 571. 59 

P- 77 Mudstone LES- Z53-47 0.45 4.8 -- -- -- 60.4 43. 75 573.75 

P- 76 Mudstone, phosphatic LES- 252-47 0.4 8.4 -- -- -- 53.7 44.15 577. 11 

P- 75 Limestone, argillaceous, "footwall 

limestone" LES- 251-47 1. 3 I. 6 -- -- -- 33.0 45.45 579. 19 

P- 74 Mudstone LES- 250-47 0.4 3. 3 -- -- -- 75.0 45.85 580. 51 

P- 73 Mudstone, phosphatic LES- Z49-47 0.6 11. 1 -- -- -- 50.4 46.45 587. 17 

P- 72 l!udstone, calcareous RAH- 139-47 I. 6 o. 1 -- -- -- 66.6 48.05 588.29 

P- 11 Mudstone, calcareous RAH- 138-47 I. 0 o. 5 -- -- -- 66.6 49.05 588. 79 

P- 70 Limestone, argillaceous RAH· 137-47 2.Z o. 6 -- -- -- 41.5 51.Z5 590. 11 

P- 69 Mudstone, calcareous, phosphatic RAH- 136-47 Z.9 1Z. 0 -- -- -- 35.6 54. 15 6Z4.91 

P- 68 Limestone, argillaceous RAH- 135-47 0.5 z. 5 -- -- -- 36.3 54.65 626. 16 

P- 67 Mudstone, phosphatic RAH- 134-47 0.7 14.9 -- -- -- 4Z. 1 55.35 636.59 

P- 66 Limestone, argillaceous RAH- 133-47 0.8 3.9 -- -- -- 38.6 56. 15 639. 71 

P- 65 Phosphate rock, argillaceous RAH- 13Z-47 2. 1 15.6 -- -- -- ZI. 9 58.Z5 672,47 

P- 64 Limestone, argillaceous, phosphatic RAH- 131-47 0.8 9.7 -- -- -- 31.4 59.05 680.Z3 

P- 63 Phosphate rock, argillaceous RAH- 129-47 3,5 17. 1 -- -- -- 24.7 62.55 740.08 

-- Three limestone concretions in bed P-63 RAH- 130-47 (0.0-1.4) 2.0 -- -- -- 1.8 -- --
P- 62 Phosphate rock, argillaceous RAH- 128-47 0.7 17. 6 -- -- -- 25. 1 63.25 752.40 

P- 61 Phosphate rock, argillaceous RAH- 127-47 1. 7 17.5 -- -- -- 24.9 64.95 782. 15 

P- 60 Limestone, argillaceous RAH- 126-47 3. 0 1. 7 -- -- -- 32.9 67.95 787. 25 

P- 59 Phosphate rock, argillaceous RAH- 125-47 0.7 19.5 -- -- -- 26.0 68.65 800.90 

P- 58 Mudstone, calcareous, phosphatic RAH- 124-47 0.4 10.2 -- -- -- 45.7 69.05 804.98 

P- 57 Phosphate rock, argillaceous, calcareous RAH- 123-47 0.8 19.4 -- -- -- 25.0 69.85 820.50 

P- 56 Phosphate rock, argillaceous RAH- 122-47 0.7 13.4 -- -- -- 33.0 70.55 829.88 

P- 55 Limestone, phosphatic, argillaceous RAH- 121-47 2.5 10. 5 _,. -- -- 21. 1 73.05 856. 13 

P- 54 Phosphate rock and mudstone, calcareous RAH- 120-47 1.6 14.9 -- -- -- 17.0 74.65 879.97 

P- 53 Limestone, phosphatic RAH- 119-47 0.4 15. 5 -- -- -- 15.2 75.05 886. 17 

P- 52 Mudstone RAH- 118-47 o. 7 6. 6 -- -- -- 66.7 75.75 890. 79 

P- 51 Limestone RAH- 117-47 0.7 7.4 -- -- -- 7.4 76.45 895.97 

P- 50 Phosphate rock RAH- 116-47 0.6 28.7 -- -- -- 9.4 77.05 913. 19 

P- 49 Limestone, argillaceous RAH- 115-47 1. 7 3.4 -- -- -- 26.0 78. 75 918.97 

P- 48 Phosphate rock RAH- 114-47 3. 8 30. 1 2. 2 3,30 8. 9 9.0 82. 55 1, 033. 35 

P- 47 Limestone, argillaceous, phosphatic RAH- 113-47 2.0 10.4 -- -- -- 28.2 84.55 1, 054. 14 

P- 46 Mudstone, phosphatic, calcareous RAH- 112-47 1. 3 14.3 -- -- -- 41.7 85.85 1, 072. 74 

P- 45 Mudstone RAH- 30-47 3.9 7. 2 -- -- -- 51.8 89.75 1, 100. 82 

P- 44 Mudstone, calcareous RAH- 29-47 2. 1 2. 5 -- -- -- 46.3 91.85 1, 106. 07 

P- 43 Mudstone, phosphatic, calcareous RAH- 28-47 0.6 12.0 -- -- -- 46.3 92.45 1, 113.27 

..., P- 42 Limestone, argillaceous RAH- 27-47 3. 1 6. 5 -- -- -- 28.0 9'5. 55 1, 133. 42 

P- 41 Phosphate rock, argillaceous RAH- 26-47 0.5 23.0 -- -- -- 26.5 96.05 1,144.92 

P- 40 Phosphate rock RAH- 25-47 0.6 27.7 -- -- -- 15. 7 96.65 1, 161. 54 

P- 39 Mudstone, phosphatic RAH- 24-47 1. 0 9. 7 -- -- -- 46.2 97.65 1, 171. 24 

P- 38 Mudstone, calcareous RAH- 23-47 1. 0 3. 3 -- -- -- 53.2 98.65 1, 174. 54 

P- 37 Phosphate rock, argillaceous RAH- 22-47 0.4 17.7 -- -- -- 34.4 99.05 1,181.62 

P- 36 Mudstone, phosphatic RAH- 21-47 2.0 12. 3 -- -- -- 50.0 101.05 1, 206. 22 

P- 35 Mudstone RAH- 20-47 0.3 7. 1 -- -- -- 61.3 101. 35 1, 208. 35 

P- 34 Limestone RAH- 19-47 1.6 2. 0 -- -- -- 18.6 102. 95 1, 211. 55 

P- 33 Phosphate rock, argillaceous RAH- 18-47 0.5 25.6 3.7 4.32 8.6 20.0 103.45 1, 224. 35 

P- 32 Phosphate rock RAH- 17-47 o. 7 25.6 3.6 3. 76 9.7 19.0 104.15 1, 242. 27 

P- 31 Phosphate rock, argillaceous RAH- 16-47 0.2 18. 1 4.5 4.28 11.3 34.0 104.35 1, 245. 89 

P- 30 Phosphate rock, argillaceous RAH- 15-47 1. 1 19. 1 3. 3 3. 54 11.6 26.6 105.45 1, 266. 90 

P- 29 Phosphate rock RAH- 14-47 1. 2 31.4 1.8 4.56 6.4 9.8 106.65 1, 304. 58 

P- 28 Phosphate rock RAH- 13-47 2. 1 30.8 1.7 3.78 6.6 10.3 108.75 1, 369. 26 

P- 27 Phosphate rock RAH- 12-47 0.4 29.8 2. 1 4.62 7. 1 10.0 109. 15 1, 381. 18 

P- 26 Phosphate rock RAH- 11-47 0.6 30.4 2.2 3.92 6.8 10.5 109.75 1, 399. 42 

P- 25 Phosphate rock RAH- 10-47 0.8 26.0 3.6 3.94 8.4 18.7 110.55 1, 420. 22 

P- 24 Phosphate rock RAH- 9-47 0.3 27.9 2.6 3.92 8.2 13.4 110.85 1,428.59 

P• 23 Phosphate rock RAH- 8-47 0.3 26.4 2.6 3.12 7.8 18.8 111.15 1, 436. 51 

P- 22 Phosphate rock, argillaceous RAH- 7-47 0.2 22. 1 2.2 2.88 7. 6 28.4 111.35 1,440.93 

P- 21 Phosphate rock, argillaceous RAH- 6-47 0.4 19. 3 3. 2 5.26 7.9 19.7 111. 75 1,448.65 

P- 20 Limestone, argillaceous RAH- 5-47 1.0 6.4 4.4 4.54 23.0 33.3 112.75 1, 455. 05 

P- 19 Mudstone, phosphatic, calcareous RAH- 4-47 0.4 11. 9 6.2 4.80 12.4 42.3 113. 15 1, 459. 81 
Bed Sample Thickness Chemical analyses (percent) Cumulative Thickness x Rock description no. (feet) P2o5 Al2o 3 Fe2o 3 

Loss on Acid thickness per~ent P2 o

1 no. ignition insoluble (feet) (cumulative 

P- 18 Phosphate rock, argillaceous RAH- 3-47 o. 7 22.6 4.2 3.90 7. 0 22.0 113.85 1, 475.63 

P- 17 Limestone, argillaceous, phosphatic RAH- 2-47 1. 1 10. 3 5. 5 5.26 18.0 32..7 114. 95 1, 486. 96 

P- 16 Phosphate rock, argillaceous RAH- 1-47 0.4 20.8 6. 5 5.80 9.4 24.5 115. 35 1,495.2.8 

P- 15 Dolomite, calcareous DML- 2.4-47 1.1 3. 9 -- -- -- 13. 7 116.45 1, 499. 57 

P- 14 Mudstone, cherty DUL- 2.3-4 7 o. 1 z. 7 -- -- -- 80.9 116. 55 1, 499. 84 

P- 13 Limestone, argillaceous DML- 22.-47 0.7 1. 7 -- -- -- 2.6.6 117. 25 1, 501.03 

P- lZ Phosphate rock DML- Zl-47 1. 3 2.3.9 -- -- -- 19.4 118. 55 1,532..10 

P- 11 Phosphate rock, calcareous, contains 

fluorite DML- 20-47 2.3 2.0.4 -- -- -- 15. 2 12.0.85 I, 579. OZ 

P- 10 Mudstone, phosphatic DML- I9-47 0.2 13.8 -- -- -- 42.. 1 121. 05 1, 581. 78 

P- 9 Limestone, argillaceous DML- I8-47 I. 4 3. 2 -- -- -- 23.6 12.2..45 1, 586. 2.6 

P- 8 Phosphate rock, argillaceous DML- 17-47 o. 1 2.1. 8 -- -- -- 2.4.6 12.2.55 1. 588.44 

P- 1 Phosphate rock, argillaceous DML- 16-47 0.3 2.5.4 -- -- -- 20. 1 12.2..85 1, 596. 06 

P- 6 Mudstone DML- 15-47 o. 3 2.9 -- -- -- 67.0 12.3. 15 I, 596. 93 

P- 5 Mudstone, calcareous DML- 14-47 3. 2 0.4 -- -- -- 68.6 12.6. 35 I, 598. ZI 

p. 4 Mudstone DML- 13-47 o. 5 o. 2 -- -- -- 76.2. 126.85 1,598.3I 

P- 3 Mudstone DML- 12-47 2. 5 0.4 -- -- -- 81. 0 12.9.35 I, 599. 3I 

P- z Phosphate rock DML- II-47 0.3 33.4 -- -- -- 5. 2 I29.65 I, 609. 33 

P- 1 Phosphate rock DML- 10-47 0.4 34.8 -- -- -- 3. 3 130.05 1, 62.3. 2.5 -

00 Wells formation-not measured 

Cw- 1 I Mudstone. calcareous_atldll~-~s~~~; _j_ -- I -- I -- I -- I -- I -- -r--~=r -- 1 
-D 

SPECTROGRAPHIC ANALYSES -LAYLAND CANYON, WYOMING. LOT NO. 1202. 

Semi-quantitative analyses of samples of the Phosphoria formation, Layland Canyon, Wyoming (see immediately preceding pages 

for location of section, thickness and description of strata, and chemical analyses of samples), made by U. S. Geological Survey Laboratory, 

Geochemistry and Petrology Branch, Washington, D. C. In addition to the elements listed in the table below, Sb, As, Be, Bi, Ce, Cs, Co, 

Cb, Ge, In, Hg, Nd, Ft, Re, Rb, Sc, Ta, Tl, Th, and W were looked for in all samples but were not detected. 

Bed 

no. 

P-99 

P-98 

P-97 

P-96 

P-95 

P·94 

P-93 

P-92. 

P-91 

P-90 

P-89 

P-88 

P·87 

P-86 

P-85 

P-84 

P·48 

P-33 

P-32 

P-31 

P-30 

P-29 

Explanation of symbols 

A = more than 10 percent 

B' • 1-10 percentl 

D = 0.1-1 percent 

E = 0, 01-0. 1 percent 

Sample no. Al Ba B Cd Ca Cr Cu Fe La Pb Mg 

Beds P-105 through P-100 not analyzed. 

RAH- 15-i-4 7 B' F F F A E F B' E E D 

RAH-155-47 B' E F F A E E B' E E D 

RAH-156-47 B' D F F A E F B' E E D 

RAH-157·47 B' F F F A E F B' E E D 

RAH-158-47 B' F F E A E E B' F E D 

RAH-159-47 B' E F F B' D E B' E E D 

RAH-160-47 B' ,F F F B' E F B' ND F B' 

RAH-161-47 B' F F F A D F B' E F D 

RAH-162-47 B' F F F A D F B' E F D 

RAH-163-47 B' F F F A D F B' E E D 

RAH-164-47 B' F F F A D E B' E E D 

RAH-165-47 B' F F ND A D F B' E E D 

RAH-166-47 B' F F F B' D F B' E E -- RAH-167-47 B' F F F B' D F B' F F B' 

RAH-168-47 B' F F F A D F B' E F D 

RAH-169-47 B' E F F B' D E B' E E D 

Beds P-83 through P-49 not analyzed. 

RAH-114-47 I B' I E I F I F I A I E E B' E E D 

Beds P-47 through P-34 not analyzed. 

RAH- 18-47 B' F F E A E E B' F E D 

RAH- 17-47 B' F F E A E E B' F E D 

RAH- 16-4i B' F F E A E E B' F E D 

RAH- 15-47 B' F F E A E F B' F E B' 

RAH- 14-47 B' E F E A E F B' F E D 

1 B' is equivalent to B and C of Bureau of Mines analyses. 

F = 0, 001-0,01 per~ent 

G = less than 0, 001 percent 

ND = not detected 

Mn Mo Ni p Si Ag Na 

E F E A B' G D 

E F E A B' G D 

E F E A B' G D 

E F E A B' G D 

E F E A B' G D 

E F E B' A G D 

E F E D A G E 

E F F A B' G D 

E F F A B' G D 

E F E A B' G D 

E F E A B' G D 

E F E A B' G D 

E F E B' A G D 

E F E B' A G D 

E F E A B' G ND 

E F E B' A G D 

F F E A B' G D 

F F E A B' G D 

F ND E A B' G D 

E F E A B' G D 

E F E A B' G D 

F F E A B' G D 

Sr Sn Ti v y Zn Zr 

D F E D E E F 

D E E D E E F 

D F E D E E F 

D F E D E E F 

D F E D E .E F 

D F D D E E E 

D F D E F E E 

D F E E .1: 1: J!' 

D F E E E E F 

D ND E E E E E 

D F D E E E E 

D F D E E E E 

D F D E E E ND 

D F D E E E E 

D F E E E E F 

D F D D E E E 

D F E D E B I" 

D F E D E E E 

D F E D E E F 

D F E D E E E 

D F E D E E F 

D F E D E E F 
Bed Sample no. Al Ba B Cd Ca Cr Cu Fe La Pb Mg Mn Mo Ni p Si Ag Na Sr Sn Ti v y An Zr no. 

P-Z8 RAH- 13-47 B' F F E A E F B' F E D F F E A B' G D D F E D E E F 

P-Z7 RAH- lZ-47 B' E F E A D E B' F F D F F F A B' G D E F E D F E F 

P-26 RAH- 11-47 B' E F E A D E B' F E D E F F A B' G D E F E D F E F 

P-Z5 RAH- 10-47 B' E F E A D E B' F F D E E F A B' G D E F E D F E E 

P-Z4 RAB- 9-47 B' E F E A D E B' F E D E E F A B' G D E F E D F E F 

P-Z3 RAH- 8-47 B' E F E A D E B' ND F D E E F A B' G D E F E D F E F 

P-ZZ RAB- 7-47 B' E F E A D E B' F E B' E F F A B' G D E F E D P' E F 

P-Zl RAH- 6-47 B' E F E A D E B' F F D E F F A B' G D E F E D F E F 

P-ZO RAH- 5-47 B' E F E A D E B' ND F B' E E F B' B' G D E ND E D F D E 

P-19 RAH- 4-47 B' E F E A D E B' F E B' E F F A B' G D E F E D F D E 

P-18 RAH- 3-47 B' E F E A D E B' F E D E E E A B' G D E F E D E D F 

P-17 RAH- Z-47 B' E F E A D E B' F E B' E E E B' B' G D E F E D F E F 

P-16 RAH- 1-47 B' E F E A D E B' F E B' E F F A B' G D E F E E F E F 

Beds P-15 through P-1 not analyzed . 

... 

0 
... 

... 

.. 

COAL CANYON, WYOMING. LO'I: NO. 1201. 

Phosphoria formation sampled in hand trenches, mine adit, and natural exposures in Coal Canyon, sec. 1, T. 26 N., R. 119 W., Lincoln County, 

Wyoming, on east limb of Sublette anticline. Upp,er shale member sampled in trench ZOO feet above canyon bottom on south side; Rex chert member in 

natural exposures 50 feet above canyon bottom on south side; beds P-69 to P-74 from vanadiferous zone in face of adit 50 feet above canyon bottom on 

north side; all other beds from trench in phosphatic shale member at bottom of canyon on south side. Beds strike north and dip 75• E. Section 

measured by V. E. McKelvey, D. M. Larrabee, and L. E. Smith and sampled by R. A. Gulbrandsen; samples 2058-2087 collected in June 1946, all 

others in June 1947. Samples analyzed by Tennessee Valley Authority. 

Bed Sample Thickness Chemical analyses (percent) Cumulative Thickness x 

no. Rock description no. (feet) Pz05lAlz03JFez031 VzOsl. F I Loss on I Acid thickness percent P 20 

ignition insoluble (feet) (cumulativef 

Dinwoody formation--basal bed only 

'1h:l - 1 I Mudstone VEM-97-47 1. 7 1. 70 

Upper shale member of Phosphoria formation 

u- 1.1 Phosphate t:ock, argillaceous VEM-96-47 I. 7 24.8 4.3 3.4 0.07 Z..5 4.9 23.8 1.7 42. 16 

u- z.6 Phosphate rock and chert VEM-95-47 0.6 15. 14 9. 1 4.2 -- 1. 3 6. 7 42.10 z. 3 51.24 

u- z.s Chert, dolomitic VEM-94-47 o. 8 6.25 3.8 z. 2 0.05 0.68 15.3 46.8 3. 1 56.24 

u- Z4 Mudstone and chert VEM-93-47 4.0 o. 70 5.3 3.2 0.04 o. 13 4.3 81.3 7. 1 59.04 

u- z3 Mudstone, cherty VEM-92-47 1. 6 1. 65 5.4 3. 8 0 • .04 o. 18 z. 5 85.9 B. 7 61.68 

u-. zz Mudstone VEM-91-47 1.6 2.93 11. 2 4.9 0.09 0.34 6. 1 77. 1 10. 3 66.37 

u- z.1 Mudstone VEM-90-47 3.2 4.60 10.7 4.5 0.06 0.58 7.5 70.3 13. 50 81.09 

tJ- z.o Mudstone VEM-89-47 3.0 4.00 11.7 4.3 o. 10 0.47 7.2 73.0 16. 5 93.09 

u- 19 Mudstone VEM-88-47 2.6 z.oo 7.3 z. 5 o. 10 0.31 9.5 72. 1 19. 1 98.29 

u- 18 Mudstone, calcareous VEM-87-47 2.6 0.30 7.8 z. 6 0.06 o. 21 11. 7 69.2 21. 7 99.07 

u- 11 Limestone, argillaceous VEM-86-47 1.6 o. 5 3.6 1.5 0.04 o. 11 24.3 43.5 23.3 99.87 

u- 16 Mudstone VEM-85-47 3. 5 1.39 7. 3 z. 5 0.05 o. 18 10.6 68.5 26.8 104. 74 

u- 15 Mudstone VEM-84-47 3.9 1. 01 4.5 z. 3 0.04 0.16 11.8 68.0 30. 7 108. 69 

u- 14 Mudstone VEM-83-47 3. 7 0.25 8. 7 2.8 0.08 0.19 7. 5 80.3 34.4 109.60 

lJ- 13 Mudstone VEM-81.-47 3.6 1. 21 8. 1 3. 2 0,05 0.24 7. 1 76.8 38.0 133.96 

lJ- 12 Mudstone VEM-al-47 4.3 0.85 10.4 3. 5 0.08 0.26 8. 6 75.00 42.3 117. 60 

lJ- 11 Mudstone VEM-80-47 1. 4 0.60 10.3 4.0 0.04 0.26 8. 6 73.4 43.7 118.45 

lJ- 10 Mudstone, dolomitic VEM-79-47 1.0 1. 60 6.4 2.9 0.08 o. 17 14. 1 64.4 44.7 120.05 

u- 9 M14dstone VEM-78-47 0.7 0.91 9.8 4.7 0.05 0.17 5. 8 79.·5 45.4 11.0.69 

lJ- 8 Mudstone VEM-77-47 2.7 1. 00 10.4 3.9 0.05 0.22 4.9 85.1. 48. 1 123. 39 

u- 7 Mudstone VEM-76-47 3. 1 o. 75 7. 5 3. 2 0,05 o.z.z s. 2 az. s 51.2 125. 71 

u- 6 Phosphate rock, cherty VEM-75-47 z.. 3 22.5 3.7 3.3 0,06 2. 1 6. 7 25.8 53.50 177.46 

lJ- 5 Mudstone VEM-74-47 1. 4 4. 1 5. 1 3. 5 0,04 0.51 4.4 73.2 54.9 183.20 

lJ- 4 Chert VEM-73-47 0.6 0.49 2.4 2. 6 0.04 0. 10 7. 6 77.6 55.5 183. 50 

lJ- 3 Chert VEM-72-47 1.1 4. 71 1. 5 3. 2 0.03 o. 54 6. 0 69.6 56.6 188.68 

lJ- z. Phosphate rock, cherty VEM-71-47 0.6 25. 5 I. 4 z. 0 0.04 2.4 3.4 25. 1 57.2 203.98 

lJ- 1 Phosphate rock, argillaceous VEM-70-47 0.4 16. 7 4.4 2.8 o. 11 z. 1 4.9 30.6 57.6 210.66 
... 

N 

Bed 

no. 

R• 7 

R- 6 

R- 5 

R- 4 

• R· 3 

R· 2 

R- 1 

--

P-107 

P-106 

P-105 

P-104 

P-103 

P-J02 

P-101 

P-100 

P- 99 

P- 98 

P- 97 

P- 96 

P- 95 

P- 94 

P- 93 

P- 9Z 

P- 91 

P- 90 

P- 89 

P- 88 

P· 87 

Rock description 

Chert and limestone, represents 

top of VEM -68-41 resampled in 

upper shale trench · 

Chert and limestone 

Chert and limestone 

Chert and limestone 

Chert and limestone 

Chert and limelltone; fos. col. no. 47-HW-48 

Chert and limestone 

Chert and limestone; fos. col. no. 47-HW-49 

Covered 

Dolomite, calcareous, 

argillaceous 

Phosphate TOck 

Mudstone; fos. col. no. 47-HW-46 

Mudstone 

Mudstone 

Mudstone, dolomitic 

Mudstone 

Phosphate rock; fos. col. no. 47-HW-45 

Dolomite, argillaceous; fos. col. no. 47-HW-44 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Phosphate rock, argillaceou~ 

Mudstone, dolomitic 

Limestone, argillaceous, 

dolomitic 

Phosphate rock 

Phosphate rock, calcareous, 

contains limestone lens 

o. o-o. 3 foot thick 

Phosphate rock, argillaceous 

Sample 

no. T(f~~)ss I Pz05 I I I -- ., ,- u-- r-r:M- -- I A-:a I 

Rex chert member of Phosphoria formation 

VEM~69-47 (1. 4) 0.65 0.7 1. 8 -- o.os 15.3 61.5 

VEM-68-47 8.5 0.11 0.2 Z.5 -- 0.05 9.6 73.0 

VEM-67-47 9.0 0.22 0.4 1. 9 -- 0.03 10. 2 73.8 

VEM-66-47 10.5 0.20 0.5 2. 1 -- 0.04 13. 1 66.7 

VEM-65-47 9.0 0.23 0.3 2.2 -- 0.04 9.6 72.3 

VEM-64-47 10.4 0.20 0.7 2.3 -- 0.04 11.6 68.5 

VEM-63-47 9.8 0.40 0.8 2.3 -- 0.05 11.2 69.2 

VEM-62-47 9.6 0 .. 25 0.4 1.9 -- 0.05 14.4 63.8 

Phosphatic shale member of Phosphoria formation 

-- 13 -- -- -- -- -- -- -- DML- 9-47 5. 7 0.76 2.5 0.9 0.04 0.13 35.7 20.0 

DML- 8-47 0.3 25.45 4.1 1. 5 0.05 2.5 6.2 17.8 

DML- 7-47 0.4 3.25 13.3 4.0 0.07 0.37 5.9 75.6 

DML- 6-47 0.5 6.15 10.9 3. 1 0.06 0.59 6.3 68.8 

DML- 5-47 0.5 4.35 12. 1 3.4 0.04 0.48 6.3 73.3 

DML- 4-47 3.2 0.65 9.3 3.0 o .. 02 0.15 13.7 66.9 

DML- 3-47 1. 2 4.51 10.2 3.3 0.04 0.52 7.7 69.3 

DML- 2-47 0.4 25.9 3.6 1.1 0.04 2.4 6.5 19.0 

DML- 1-47 1.4 0.81 4.3 1. 5 0.06 0.15 Z8.3 35.6 

20632 1.1 29.8 1.4 0.8 0.07 3. 1 6.Z 8. 2 

Z062z 1.9 32.9 0.9 0.6 0.10 3.8 5.4 3. 2 

2061 0.7 27.2 2.3 1.1 0.23 2.9 8.6 1Z.4 

Z060 0.6 Z9.8 1.5 0.7 0.26 3. 1 8.0 7. 2 

2059 0.5 26.9 2. 1 1.0 0.24 2.7 9.6 11.4 ... 2"058 0.8 32.7 1. z 0.5 o. 15 3.4 6.9 5. 2 

VEM-61-47 1. 1 21.6 4.Z 1.7 0.16 Z.2 9.0 zz.z VEM-60-47 0.4 3.80 7.8 2.6 0.09 o. 51 13.5 58.5 

VEM-59-47 1.9 o.zo 3.4 2.0 0.08 0.12 Z6.6 38.6 

VEM-58-47 0.7 29.3 2.0 z. 3 0.10 3.0 9.5 10.6 

VEM-57-47 0.9 Z4.09 0.8 0.8 0.06 2. 6 15.0 4. 7 

VEM-56-47 0.6 21.03 4.4 1.6 0.11 1.9 8.3 29.2 

Cumulative 

thickness 

(feet) 

--

8.5 

17.5 

28.0 

37.0 

47.4 

57.2 

66.8 

13.0 

18.7 

19.0 

19.4 

19.9 

20.4 

23.6 

24.8 

25.2 

26.6 

27.7 

29.6 

30.3 

30.9 

31.4 

32.Z 

33.3 

33.7 

35.6 

36.3 

37.2 

37.8 

Thickness x 

percent PzO.s 

(cumulative} 

--

0.94 

2.92 

5. 02 

7. 09 

9.17 

13.09 

15.49 

--

4.33 

11.97 

13.27 

16.35 

18.53 

20.61 

26.02 

36.38 

37.51 

70.29 

132.80 

151.84 

169.7Z 

183.17 

209.33 

233.09 

234.61 

234.99 

Z55.50 

277. 18 

289.80 
P- 86 Phosphate rock VEM-55-47 0.5 27.45 2. 1 1.2 0.06 2.9 8. 1 13.9 38.3 303.52 

P- 85 Phosphate rock VEM-54-47 0.9 27.44 1.4 1. 1 0.06 3.0 8. 1 11.3 39.2 328.22 

P- 84 Phosphate rock and phosphatic 

mudstone VEM-53-47 1. 8 16.52 5.3 1.9 o.os 1.6 9.5 40.4 41.0 357.96 

P- 83 Phosphate rock, limestone, and 

mudstone VEM-52-47 1. 0 29.41 2.3 1.7 0.05 3.2 5.4 11. 80 42.0 387. 37 

P- 82 Limestone, argillaceous; fos. co 

col. no. 47-HW-43 VEM-51-47 1.7 2.11 5.8 2. 1 0.06 0.24 22. 1 41. 2 43.7 390.96 

P- 81 Mudstone, calcareous and 

phosphate rock 

P- 80 I Limestone, argillaceous, 

VEM-50-47 2.0 4.04 8.8 2.5 0.05 0.45 14.2 56.8 45.7 399.04 

mudstone, and phosphate rock VEM-49-47 1. 0 9.90 6. 7 2.3 0.09 1.1 16.8 37.0 46.7 408.94 

P- 791 Mudstone, calcareous VEM-48-47 0.8 2. 16 9.7 3.0 o.os 0.31 16.5 54. 7 47.5 410.67 

P- 78 Phosphate rock VEM-47-472 0.4 28.67 1. 9 2. 1 o. 11 2.8 13. 1 5.62 47.9 422. 14 

P- 77 Limestone, argillaceous, 

calcareous mudstone, and 

phosphate rock I VEM-46-47 I 2. 1 I 9.921 6.2 I 2.6 I o. 01 I 1. 1 I 22.0 I 25.2 I 50.0 I 442.97 

P- 76 I Limestone, "hanging-wall 

limestone"; fos. col. no. 47-HW-42 VEM-45-47 1. 6 0.36 1.1 0.5 0.06 0.06 41. 1 5.90 51.6 443.55 

P- 75 Mudstone VEM-44-47 0.75 2.73 8.6 3.4 0.52 0.44 16.7 59.32 52.35 445.60 

P- 74 Mudstone VEM-43-47 0.4 0.34 9.8 3.9 1. 75 o. 15 24.9 51. 2 52.75 445.74 

P- 73 Mudstone VEM-42-47 0.65 0.20 9.6 4.0 1. 45 0.23 22.6 56.38 53.40 445.87 

P- 72 Mudstone VEM-41-47 0.9 0.05 9. 7 4.4 I o. 37 0.08 16.6 65.75 54.30 445.91 

.... 

w P- 71 Mudstone VEM-40-47 1. 05 6.30 7. 1 3.3 o. 14 0.67 17.4 46.66 55.35 I 452.53 

P- 70 Limestone, argillaceous, 

"footwall limestone"; fos. 

col. no. 47-HW-35 VEM-39-47 1.1 0.80 2.6 1.2 0.06 o. 10 30.7 27.6 56.45 453.41 

P- 69 1 Mudstone, phosphatic VEM-38-47 1.5 8.31 9.2 3. 6 0.08 0.80 10.3 57.9 57.95 465.87 

P- 68 Mudstone VEM-37-47 1.4 0.76 9.3 2.8 0.08 0.09 11.4 73.0 59.35 466.93 

P- 67 Mudstone VEM-36-47 0.5 6.02 10.3 3.4 0.06 0.57 10.2 65. 1 59.85 469.94 

P- 66 Mudstone, calcareous, dolomitic VEM-35-47 2.3 0.66 5.7 1. 9 0.05 0.08 25.9 41.4 62.15 471.46 

P- 65 Mudstone, phosphatic, and 

calcareous phosphatic mudstone VEM-34-47 3.0 9.97 8.0 2. 6 0.03 1.1 14.3 42.4 65. 15 501. 37 

P- 64 Dolomite, argillaceous VEM-33-47 0.7 1. 51 5.9 1.9 0.05 0~ 18 25.7 39.9 65.85 502. 43 

P- 63 Mudstone, phosphatic VEM-32-47 2.0 12.38 8.5 2.6 0.08 1.3 15.9 35.23 67.85 527. 19 

P- 62 Phosphate rock, argillaceous VEM-31-47 2.0 13.73 s. 1 2. 1 o. 17 1.4 18.7 25. 1 69.85 554.65 

P- 61 Limestone, dolomitic VEM-30-47 3.5 0.69 4.3 1.4 0.05 0.09 33. 1 15.00 73.35 557.07 

P- 60 Dolomite, argillaceous VEM-29-47 1.1 2.22 3.6 1. 3 0.05 0.22 33.7 23.4 74.45 559. 51 

P- 59 Phosphate rock, dolomitic, 

argillaceous, dolomite lens 

included in sample VEM-28-47 3.0 14.29 7. 1 2.3 0.08 1.3 18.2 26.53 77.45 602.38 

P- 58 Dolomite VEM .. 27-47 1.6 2.10 2.2 0.7 0.07 0.22 40.7 10.47 79.05 605.74 

P- 57 Mudstone, phosphatic VEM-26-47 1. 6 13.63 10.5 3. 1 0.05 1.5 15.2 38.27 80.65 627.55 

P- 56 Dolomite, argillac~ous VEM-25-47 1.2 2.24 2.2 0.7 0.05 0.27 40.0 25.48 81.85 630.24 

~ Fossil collection made by H. Wedow, Paleontology and Stratigraphy Branch, U. S. Geological Survey. 

See additional analyses of selected samples at end of chemical analyses tables. 
Bed Sample Thickness Cherrrlcalanalyses (percent) Cumulative Thickness x 

no. Rock description (feet) Pzo5 Al 2

o 3 Fe2

o 3 V205 F Loss on Acid thickness percent P 2 0 no. ignition insoluble (feet) (cumulatlvef 

- 55 Phosphate rock", dolomitic VEM-24-47 1.6 14.85 4.3 1. 4 0.21 1.5 22.4 15.28 83.45 654.00 

- 54 Dolomite VEM-23-47 1. 3 5.38 1.3 0.9 0.04 0.56 35.9 10.8 84.75 660.99 

- 53 Phosphate rock and phosphatic 

mudstone VEM-'22-47 2.5 21.00 4.5 1.7 0.09 2. 1 18.9 11.68 87.25 713.49 

- 52 Dolomite, phosphatic VEM-21-47 o. 7 8. 11 0. 1 0. 5 0.07 0. 78 35.8 4.93 87.95 719.17 ,_ 51 Phosphate rock. VEM-20-47 0.3 24.35 2.8 1.7 0.08 2.6 11.9 16.55 88.25 726.47 

- 50 Dolomite VEM-19-47 1. 3 4.42 3.0 1. 1 0.06 0.47 34.8 18.02 89.55 732.22 

Fault (strikes N. 10° W. dips 60° E.) truncates beds P-50 and P-51. 

- 49 Phosphate rock VEM-18-47 0.6 26.01 3. 1 1.4 0.06 2. 9 11.2 10.08 90. 15 747.83 

- 48 Dolomite VEM-17-47 1.1 4.04 1. 7 1. 0 0.07 0.44 37.0 13.63 91.25 752.27 

- 47 Dolomite VEM-16-47 1. 1 3.05 1.7 0.9 0.09 0.35 38.7 12.92 92.35 755.63 

- 46 Dolomite, argillaceous VEM-15-47 1.1 4.85 3.7 1.7 0.08 0.56 30.5 23.8 93.45 760.97 

- 45 Phosphate rock VEM-14-47 0.8 28.85 1.3 0.9 0.08 3.3 11.0 3.46 94.25 784.05 

- 44 Phosphate rock LES- 10-47 I. 3 26.24 2. 3 1. 2 0.25 2.9 13.6 10.0 95.55 818. 11 

- 43 Phosphate rock LES- 9-47 0.7 29.26 1.2 1. 0 o. 13 3.2 8. 7 8.9 96.25 838. 59 

- 42 Dolomite LES- 8-47 2.0 4.41 2.0 0.8 0.05 0.44 33.7 17.8 98.25 847.41 

:; - 41 Mudstone, phosphatic LES- 7-47 3.8 10. 75 7.9 2.5 0.05 1. 1 11. 7 48.2 102.05 888.26 

- 40 Mudstone, dolomitic LES- 6-47 3.0 1. 55 4.6 2. 1 0.05 o. 19 22.5 47.4 105.05 892.91 

- 39 Mudstone, phosphatic LES- 5-47 0.6 12.33 8.5 2.5 0.07 1.1 10.2 47.2 105.65 900.31 

- 38 Dolomite, argillaceous LES- 4-47 1.8 1. 90 2.2 0.9 0.04 0.21 31.5 28.7 107.45 903.73 

- 37 Dolomite, argillaceous LES- 3-47 0.6 4.75 2.3 0.8 0.05 o. 50 27.6 29.2 108.05 906. 58 

- 36 Dolomite, argillaceous LES- 2-47 0.9 7.08 2.4 o. 8 0.05 0.75 24.7 28.8 108.95 912.95 

- 35 Phosphate rock, argiliaceous LES- 1-47 0.4 23.34 3.7 1.3 0.06 2.3 8.2 25.2 109.35 922. 29 

- 34 Phosphate rock VEM-13-47 0.6 30.00 1.8 o. 7 0.09 3. 2 7. 6 9.4 109.95 940.29 

- 33 Mudstone and phosphate rock, 

contains gypsum 208(- 0.8 8. 1 3.0 2.6 0.35 0.83 19.6 48.9 110. 75 946. 77 

- 32 Mudstone, dolomitic 208!) I. 8 7. 2 2.2 2. 0 -- o. 71 19. 1 41. 1 112. 55 959. 73 

- 31 Phosphate rock, argillaceous 2084 1.0 18. 1 2.0 1.8 0.42 1. 8. 11. 6 33.3 113. 55 977.83 

- 30 Mudstone, phosphatic 2()83 0.9 8. 0 2.5 2. 2 -- 0.84 13.4 49.5 114. 45 985.03 

- 29 Mudstone, dolorrrltic 2082 0.8 6. 0 2.4 1.9 0.23 0.88 16.6 40.2 115. 25 989.83 

- 28 Dolomite, argillaceous 2081 1.7 6.4 1.3 1. 2 o. 18 o. 71 25. 7 25.5 116. 95 1, 000. 71 

- 27 Phosphate rock 2080~ 1.2 26.3 2. 1 1.1 0.30 2.4 9.4 14.6 118. 15 1, 032. 27 

- 26 Phosphate rock 2079 2. 1 26. 1 1. 6 0.9 o. 17 2.4 9.3 13.6 120. 25 1, 087.08 

p 

p 

- 25 Phosphate rock 2078 0.3 29.5 1.1 o. 7 0.08 3. 0 7. 1 10.9 120.55 1, 095. 93 

- 24 Phosphate rock 2077 1.7 28.6 1.4 0.7 0.09 2. 6 7. 8 10.5 12Z.Z5 1, 144. 55 

- Z3 Phosphate rock 201' 1.7 26. 7 1.9 0.8 o. 14 2.7 9. 1 12.3 123.95 1, 189. 94 

- 22 Phosphate rock 2075 0.8 21. 1 2.0 1.0 o. 10 2. 1 12. 2 18,5 124. 75 1, 206. 82 

p 

p 

- 21 Phosphate rock, argillaceous, 

I dolomitic 2074 0.9 16.4 2.2 1.3 0.09 1. 8 14.7 24.4 125. 65 1,221.58 
IJ'I -

P·· 20 Phosphate rock, argillaceous, 

dolomitic 2073 

P- 19 Phosphate rock, argillaceous, 

dolomitic 2072 

P- 18 Dolomite, argillaceous 2071 

P- 17 Dolomite, phosphatic, argillaceous 2070 

P- 16 Dolomite 2069 

P- 15 Phosphate rock 2 VEM-12-47 2 P- 14 Dolomite VEM-11-47 2 P- 13 Phosphate rock, dolomitic VEM-10-47 2 P- 12 Dolomite, phosphatic VEM- 9-472 P- 11 Phosplute rock VEM- 8-47 

P- 10 Mudstone VEM- 7-47

2

1 

P- 9 Dolomite, phosphatic, argillaceous 2066 

P- 8 Phosphate rock, argillaceous I 2065 1 

P- 7 Mudstone I 2064 1 

P- 6 Mudstone, dolomitic I VEM- 6-47 ' 

P- 5 Mudstone VEM- 5-47 

P- 4' Mudstone j VEM- 4-47 

P- 3 Mc.dstone I VEM- 3-47 

P- 2 Mudstone VEM- 2'"'47 

P- 1 Phosphate rock VEM- 1-47 

Cw- 4 Limestone 

Cw - 51 Limestone, sandy 

Cw - 1 Limestone 

1. 2 

1. 1 

0.7 

0.4 

2.3 

1.3 

0.5 

o. 9 

0.5 

o. 7 

0.4 

1. 4 

0,4 

0.5 

2.6 

0.5 

0.6 

0 1:; 

1.4 

0.2 

4.3 

2. 8 

3.0 

3.8 

9.0 

12. 8 2.8 

I 

15. 5 2. 7 

6.9 2.0 

13. 3 1.7 

5. 2 1. 2 

21. 55 3.· 1 1 

6.4 o. 5 

15. 69 1.2 

11. 5 0.9 

21::1.9 1.1 

7. 5 5,6 

9. 7 2.4 

20,6 3.2 

5. 0 4.2 

0.26 7. 5 

o. 3 9. 7 I o. 44 . 9. 8 

o. 16 8.8 

0,67 10. 1 i 29.05 2. 5 

Wells formation 

Cw- 3 Siltstone, calcareous 

Cw- l I Limestone, sandy 

___ _j__ ___ ·--------·-------- I L 

1. 4 0.08 l. 4 

1.3 o. 06 . 1. 7 

1. 2 a. o6 1 o. s2 

1. l 0.05 1.6 

o. 5 0.05 o. 55 

l. 3 0.05 2. 5 I 

o. 1::1 0,05 o. 74 

1.5 0.05 1, 6 

o. 7 0.05 1. 3 

0. 7 o. 11 3.4 

2. 7 1 o.o9 I o.9l 

1.4 I o.o9 o.93 

1. 6 o. l7 2. 2 

3.4 I o. 36 o. 77 

2. 5 0.09 o. 12 

3. l 0.04 o. 19 

4.6 o. 19 0.29 

3. 7 o. 11 0.23 

3. 1 0,08 0,25 

o. 7 0. 10 2. 9 

') 

._. See additional analyses of selected samples at end of chemical analyses tables. 

17. 1 28.0 

14. 0 27.3 

26.5 23.8 

19. 0 22.7 

32.6 16. 1 

11, 9 18. 5 

31. 7 16. 5 

20. 2 16.2 

l7.3 12.2 

9. 1 7.9 

18. 3 44.0 

25.6 20.0 

9.0 26.4 

11. 5 62. 7 

14.9 64.7 

10. 7 73.5 

12. 8 74.7 

6.6 81.5 

6.5 80.3 

7.4 8.3 

126.85 

127.95 

128.65 

129. 05 

131. 35 

132.65 

13 3. 15 

134.05 

134. 55 

135. 25 

135. 65 

137. 05 

137.45 

137.95 

140. 55 

141. 05 

141.65 

142.15 

143.55 

143. 75 

4.3 

7. 1 

10,0 

13. 9 

22.9 

1, 236.94 

1, 253. 99 

1, 258. 82 

1, 264. 14 

1, 276. 10 

I, 304. 11 

1,307.31 

1,321.43 

1, 327. 18 

1, 34 7. 41 

1, 350.41 

1, 363. 99 

1, 372. 23 

1, 374. 73 

1,375.41 

1, 375. 56 

1, 375. 82 

1, 375.90 

1, 376. 84 

1, 382. 65 
-

oBed 

no. 

'l!'d- 1 

u- 21 

u- 26 

u- 2s 

u- 24 

u- 23 

u- 22 

u- 21 

u- 20 

u- 19 

u- 18 

u- 11 

u- 16 

u- 1s 

u- 14 

u- 13 

u- 12 

u- 11 

u- 10 

u- 9 

u- 8 

u- 7 

u- 6 

u- 5 

u- 4 

u- 3 

u- 2 

u- 1 

-- R- 7 

R- 6 

R- 5 

R- 4 

R- 3 

R- z 

R- 1 

P-107 

P-106 

Sample no. Si02 

VEM-97-47 61.04 

VEM-96-47 23.48 

VEM-95-47 37.30 

VEM-94-47 43.60 

VEM-93-47 74.62 

VEM-92-47 78.46 

VEM-91-47 65.22 

VEM-90-47 59.54 

VEM-89-47 63.04 

VEM-88-47 65.32 

VEM-87-47 61.52 

VEM-~6-47 23.50 

VEM- 5-47 62.30 

VEM-84-47 62.36 

VEM-83-47 70.84 

VEM-82-47 66.84 

VEM-81-47 65.02 

VEM-80-47 61. 70 

VEM-79-47 57.51 

VEM-78-47 70. 14 

VEM-77-47 72.94 

VEM-76-47 71.02 

VEM-75-47 24.86 

VEM-74-47 67.60 

VEM-74-47 74.34 

VEM-72-47 69.00 I 

VEM-71-47 27.60 

VEM-70-47 34.00 

VEM-69-47 61.05 

VEM-68-47 73.49 

VEM-67-47 72.48 

VEM-66-47 66.49 

VEM-65-47 73.72 

VEM-64-47 66.91 

VEM-63-47 87.43 

VEM-62-47 63.28 

DML- 9-47 17.58 

DML- 8-47 17.80 

Additional analyses of Coal Canyon· samples 

CaO MgO Na

2o 

K

20 

8. 16 2. 1 0.95 3.40 

37. 18 0.45 1. 00 1. 05 

22.60 1.4 -- -- 19.80 5.4 o. 72 1. 22 

4. 70 0.84 0.97 1. 20 

3.60 o. 51 0.62 1. 50 

4.00 0.88 -- -- 7.32 1. 1 3. 10 0.69 

5.80 1. 2 0.50 3.50 

8.36 2.6 2.20 0.57 

8.20 3. 7 0.40 2.40 

18.20 8.8 0.30 1. 50 

8.20 3. 1 0. 50 2. 13 

10.20 3. 0 0.44 1. 85 

4.90 1.3 2.40 0.49 

4.20 1.9 0.60 2.77 

5.30 2. 2 3.10 0.30 

5.40 2. 0 0.25 3.20 

10.80 4.4 0.28 1. 79 

2.00 0.86 0.40 3.10 

1. 42 0. 79 3.20 0.50 

4.40 o. 73 0.52 2.60 

35.60 0.62 0.85 1.30 

8.40 0.55 0.40 1. 83 

9.00 0.40 0.60 0.60 

13.20 0.39 0.32 0.42 

37.10 0.27 0.53 0.75 

30.40 o. 59 0.57 1. 70 

19.00 1.00 -- -- 11.80 o. 78 -- -- 12.00 0.64 -- -- 16.40 0.41 -- -- 11. 50 0.41 0.89 2. 72 

14.00 0.48 -- -- 14.00 0.63 -- -- 18.00 0.62 -- -- 29.80 11. 1 o. 54 0.63 

39.40 o. 47 1. 50 1.20 

Ti02 

H

20- C02 S as so3 

0.65 o. 75 6.9 nil 

0.25 o. 54 1. 6 1.2 

-- 0.88 2.3 0.75 

0.27 0.30 13. 5 0.43 

0.34 0.30 2.9 <0.1 

0.34 0.30 0.7 0.22 

0.52 1.23 o. 2 0.32 

0.49 1.89 0.5 0.39 o. 53 1. 31 0.4 0.26 

0.35 0.57 5. 9 0.11 

0.52 0.50 8.4 nil 

0.24 0.36 22.7 <0.1 

0.43 0.46 7. 1 0.17 

0.37 0.41 8.8 0.21 

0.46 0.77 3. 1 0.20 

0.44 0.64 3. 1 0.20 

0.44 0.82 4.2 o. 13 

0.44 0.86 3.9 0.20 

0.37 o.ss 10.8 0.28 

0.55 0.92 0.3 0.31 

0.52 0.78 0.2 0.17 

0.34 0.54 2.0 0.21 o. 14 0.48 4.5 1. 0 

0.33 0.38 1.8 0.24 

0.09 0.16 6. 6 0.10 o. 10 o. 13 5. 3 0.21 

o. 13 0.27 1. 7 1. 0 

0.20 0.68 1. 6 0.95 

-- 0.09 14. 7 <0.1 -- 0.12 9.6 nil 

-- 0.05 9.3 <0.1 -- 0.06 12. 7 nil -- 0.15 9.5 <0. 1 

-- 0.08 11.2 <0.1 

-- 0.14 10. 9 <0.1 

-- 0.07 14. 1 nil 

o. 14 0.26 33.8 o. 51 

0.20 0.67 2. 6 2.3 
P-105 DML- 7-47 61. 52 5.60 0.82 0.35 3.90 0.01 0.79 0.9 0.60 

P-104 DML- 6-47 57.58 9.00 0.67 o. 59 3.30 0.47 1. 02 0.8 0.91 

P-103 DML- 5-47 61. 14 6.60 0.63 0.40 3.57 0.45 1. 04 o. 6 o. 76 

P-102 DML- 4-47 55.26 9.00 4.2 0.84 2.53 0.54 0.43 10.4 0.31 

P-101 DML- 3-47 57. 11 10.40 0.90 1.02 1. 67 0.43 0.93 3. 2 o. 77 

P-100 DML- 2-47 17. 70 40.80 0.39 1. 09 0.80 o. 17 0.62 3.8 2.0 

P- 99 DML- 1-47 30.02 22.20 10.0 1. 00 1. 22 0.31 0.31 26.6 0.48 

P- 98 20632 9.91 46.2 0. 24 0.83 0.60 0.09 0.50 4.4 2.3 

P- 97 2062 4. 73 49. 1 0.20 1. 01 0.39 0.07 0.46 2.0 2.9 

P- 96 2061 2 13.87 39.8 0.37 0.76 1. 10 0. 16 1. 47 1. 7 2.9 

P- 95 2060 8.85 44. 1 0.34 1. 03 0.67 0.07 1.26 2.3 3.2 

P- 94 2059 13.28 39.7 0.36 0.91 0.92 o. 12 1. 73 1. 9 4.0 

P- 93 2058 6.49 45.7 0.24 1. 16 0.54 0.05 I. 02 2. 2 3.5 

P- 92 VEM-61-47 27. 10 32.40 0.39 1. 20 1. 80 0.26 1. 12 1. 3 2.8 

P- 91 VEM-60-47 47.36 12.80 3. 8 0.96 2.30 0.42 0.83 8.8 1. 1 

P- 90 VEM-59-47 32.32 25.60 4.9 0.90 1. 47 0.01 0.32 24.8 0.85 

P- 89 VEM-58-47 12.90 42.24 0.33 1. 00 o. 77 o. 14 0.89 1. 6 3.2 

P- 88 VEM-57-47 6. 70 48.42 0.41 1. 14 0.45 0.08 0.56 11.8 2.3 

P- 87 VEM-56-47 27. 70 31.46 0.42 1. 09 1. 24 0.32 0.87 1.8 2.5 

P- 86 VEM-55-47 15.50 41.60 o. 31 1. 25 0. 70 0. 16 0.89 2. 1 2.9 

P- 85 VEM-54-47 14. 10 44. 18 0.29 1. 20 0.40 o. 16 0.58 4.7 2.3 

- P- 84 VEM-53-47 34.24 25.41 0.43 1. 09 1. 60 0.40 1. 08 2.0 2.4 ..... P- 83 VEM-52-47 13.20 44.00 0.26 0.94 0.62 o. 15 0.47 2.3 1. 6 

P- 82 VEM-51-47 35.27 26.80 2. 1 o. 74 1. 45 0. 19 0,34 20.8 0.90 

P- 81 VEM-50-47 47.21 13.40 4.2 0,84 2.43 0.42 0,62 10. 0 0.90 

P- 80 VEM-49-47 31. 21 26.4 0.90 0.45 1. 89 0.32 1.35 9.6 2. 1 

P- 79 VEM-48-47 47.41 15.40 2. 21 0.62 2.45 o. 10 0.86 10. 5 1. 0 

P- 78 VEM-47-472 7.70 42. 10 0.43 0.90 0.67 o. 14 1. 55 1. 9 3.5 

P- 77 VEM-46-47 21. 10 30.80 1. 70 1.00 1. 49 0.26 1. 37 14.0 2. 2 

P- 76 VEM-45-47 4.82 50.22 1. 8 0.60 o. 72 0.03 0. 13 40.2 0.44 

P- 75 VEM-44-47 47. 18 8.40 1.9 1. 25 2. 12 0.52 0.51 5. 0 8.6 

P- 74 VEM-43-47 41.64 6.05 2. 3 o. 78 2.55 o. 18 0.83 5.9 12.5 

P- 73 VEM-42-47 45.64 4.20 2. 7 0.99 2. 78 0.23 0.52 5. 1 10.6 

P- 72 VEM-41-47 52.58 4.20 2. 9 1.30 2.85 0.36 0.32 5. 6 8.4 

P- 71 VEM-40-47 37.36 15. 60 1. 4 1.27 2. 11 0.28 0.37 6.4 9.4 

P- 70 VEM-39-47 22.98 36.40 1. 8 1. 10 o. 70 0.06 0.29 29.3 0.60 

P- 6~ VEM-38-47 48.07 13.20 0.53 1.30 2.38 0.48 1.33 0.52 1. 6 

P- 68 VEM-37-47 59.80 5.40 2. 4 1. 50 2.30 0.42 0.99 5. 1 0.90 

P- 67 VEM-36-47 53.23 9.48 0.48 1. 20 2.62 o. 61 1. 41 0.59 1. 6 

P- 66 VEM-35-47 33.46 23.20 5. 4 1. 20 1. 30 0.24 0.46 23.0 0,62 

P- 65 VEM-34-47 35.28 22.2 1.2 1. 20 2. 14 0.38 1. 32 6. 1 2.0 

P- '4 VEM-33-47 32.75 20.20 8. 6 1. 44 1. 25 0.27 0.39 23.3 0,55 

P- 63 VEM-32-47 29.90 24.40 0.80 1. 02 1. 95 0.38 1. 62 5. 1 2.2 

2 See additional analyses of selected samples at end of chemical analyses tables. 
Bed Sample no. Si02 CaO MgO Na

2o 

K

20 Ti02 

H

20- C02 s as so3 no. 

P- 62. VEM-31-47 20.82 28.40 1. 0 0.94 1.35 0.26 1.85 7. 3 3.0 

P- 61 VEM-30-47 19.60 32.40 5. 3 0.95 0.95 0.13 0.45 30. 1 0.56 

P- 60 VEM-29-47 18.63 25.8 12. 3 1. 26 0.97 o. 10 0.54 30.3 o.so 

P- 59 VEM-28-47 22.60 26.40 3. 4 0.89 1. 70 0.29 1. 76 7.9 2. 5 

P- 58 VEM-27-47 8.27 29.60 15. 1 0.80 o. 50 0.06 0.77 36.2 1.0 

P- 57' VEM-26-47 32.60 20. &7 0.63 o. 75 2.60 0.38 1. 86 0.86 2.5 

P- 56 VEM-25-47 7.82 29.72 15.0 0.60 o. 71 0.10 0.43 36.7 0.60 

P- 55 VEM-24-47 13. 10 32.05 6. 1 o. 79 1. 22 0.18 1. 23 14.4 2.5 

P- 54 VEM-Z3-47 8.69 31.80 10. 9 0.50 0.66 o. 11 0.58 32.3 1.1 

P- 53 VEM-22-473 10.60 32.82 1. 0 0.75 1.20 0.13 1. 00 2. 4 3.9 

P- 52 VEM-21-47 5.20 36.00 13.0 0.60 0.40 o. 13 0.41 33.00 1. 0 

P- 51 VEM-Z0-47 15.53 36.45 0. 77 1. 15 1. 12 0.25 1.24 2. z 3. 1 

P- 50 VEM-19-47 14.50 27.20 8.0 0.78 1. 12 0.04 1. 07 2.8.6 1. 7 

P- 49 VEM-18-47 11.50 40.37 0.98 1. 56 0.95 o. 16 0.53 3.4 3.0 

P- 48 VEM-17-47 11. 19 26.60 13. 2 0.58 0.82. 0.07 1. 00 31.2. 1. 7 

P- 47 VEM-16-47 10.47 27.36 13.9 0.84 0.69 0.06 1. 10 32..8 1. 6 

P- 46 VEM-15-47 19~38 24.96 9.9 0.89 1. 59 o.zz 1. 15 24.4 1. 6 

P- 45 VEM-14-47 5. 17 45.45 0.39 1.00 0.49 0.07 1. 01 4.3 2.7 

P- 44 LES- 10-47 12.80 38.80 0.58 1. 35 0.79 0.15 1.4.6 2.0 3.8 

P- 43 LES- 9-47 9.50 43.73 0.57 0.97 0.54 0.11 0.79 2.8 3.0 

- P- 42 LES- 8-47 14. •2 28.40 12.8 0.70 0.85 o. 11 0.44 30.6 0.96 CIO P- 41 LES- 7-47 36.80 18.40 1.9 1. 44 2.62. 0.28 1.06 4.3 1. 8 

P- 40 LES- 6-47 38.32 16.2 8.4 1. 19 2..17 0.06 0.59 19. 5 0.63 

P- 39 LES- 5-47 36.80 20.00 1.5 0.87 3.27 0.34 0.20 3. 5 1. 8 

.p- 38 LES- 4-47 25.56 23.2. 12..4 0.45 0.85 0.06 o. 41 28.6 0.71 

P- 37 LES- 3-47 2.6.12 2.4.20 10.3 0.80 1. OS o. 2.6 o. 54 2.4.4 1. 0 

P- 36 LES- 2-47 25. 76 24.53 9. 1 1. 00 0.97 o. 13 0.60 2.2.6 1.2. 

P- 35 LES- 1-47 23. 70 34.40 0.41 1. 00 1.40 0.2.2 0.77 1.6 2.9 

P- 34 VEM-13-47 10. 75 43.65 o. 19 1. 08 0.51 0.08 0.72 1. 6 3.4 

P- 33 2086 44.45 12.. 7 0.64 0.30 2.73 0.40 3.88 1. 1 4.5 

P- 32 2085 -- -- 5.4 -- -- -- -· 13. 1 z.o 

P- 31 2084 30.01 2.7.2 0.39 0.86 1. 81 0.33 2.10 1. 3 3.7 

P- 30 2083 -- -- 3.0 -- -- -- -- 7. 2 2. 1 

P- 29 2082 36.28 2.1. 5 4.8 1. 10 2.03 0.36 1. 19 11.6 3. 1 

P- 28 2081 22.93 2.6.7 9. 5 1. 02. 1.30 0.23 0.75 22.9 1. ~ 

P- 2.7 20802 15.75 37.5 0.46 0.95 1. 35 0.16 1. 52. 2.0 3.5 

P- 2.6 2.0792 14.06 39.7 1. 5 0.77 1.36 0.13 1. 09 4.9 2.8 

P- 2.5 2.078 12..04 42..9 o. 59 o. 72. 0.99 0.10 0.99 2. 5 2..4 

P- 24 2.077 11.63 42..3 o. 60 0.90 0.88 0.10 0.87 3.3 2.8 

P- 2.3 2076 13.36 41. 2. 0.80 0.95 1. 07 O.lZ 1. 2.2 3.6 3. 1 

P- 22 2075 18. 16 35.4 2. 2 0.83 1. 51 o. 16 1. 48 6.4 3. 1 

P- 21 2074 2.2.. 77 30.4 3. 7 o. 70 1. 88 O.Zl 1.39 9.8 2.7 
-..0 

P- ZO 

P- 19 

P- 18 

P- 17 

P- 16 

P- 15 

P- 14 

P- 13 

P- 12 

P- 11 

P- 10 

P- 9 

P- 8 

P- 7 

P- 6 

P· 5 

P- 4 

P- 3 

P- 2 

P- 1 

I 

2073 25.87 27.8 5. 0 0.60 1. 53 

2072 25.91 29.4 3. 3 0.63 2.26 

2071 21.20 26.7 9.0 0.30 2,29 

2070 21.25 30.9 5. 9 0.42 1. 65 

2069 16. 21 28.2 12.2 0.33 0.79 

VEM-12-472 16.64 36.40 2.4 •0.83 1. 52 

VEM-11-472 15.20 30.60 12.3 0.40 0.78 

~~:- ~~=:~~ 16.02 35.00 6. 7 o. 77 0.83 

13.00 32. 15 10. 1 0.62 0.69 

VEM- 8-472 10.09 43.82 o. 6 1. 09 0.45 

VEM- 7-472 39.08 16.32 3. 7 0.45 2.25 

2066 17.98 26.8 9. 5 0.42 1. 31 

2065 26.27 31. 1 0,57 o. 79 1. 58 

2064 55.29 9. 1 0.80 0.59 3.96 

VEM- 6-47 53.36 10,00 5.8 0.40 4.10 

VEM- 5-47 61. 56 4.96 3. 0 o. 17 4.63 

VEM- 4-47 61. 56 0.64 0.87 0.24 5,03 

VEM- 3-47 71.04 7.28 0. 72 0.30 5,07 

VEM- 2-47 69.28 2.60 1.4 0.35 4.50 

VEM- 1-47 10.20 42.24 1.9 0,95 0.40 

i See additional analyses of selected samples on next page. 

The Si02 analysis for this sample is probably in error. 

0. 21 1.30 12.5 2. 1 

o. Zl 1. 38 8.6 2.3 

o. 11 0.70 23.5 1. 1 

0.31 0.71 16.0 1.5 

0.09 0.59 33.2 1. 0 

o. 15 0,71 7. 1 2.6 

0,08 0.57 29.8 1. 1 

o. 17 0.55 17. 7 1. 2 

o. 12 1. 46 25.3 2.3 

o. 16 0.70 3.7 3.5 

0.24 1. 53 8.0 2.8 

o. 14 1. 35 21.9 2. 1 

0. 19 1. 82 1.9 3. 7 

0.45 2.36 0,8 3. 1 

o. 18 0,33 13. 3 0.39 

o. 16 0.78 6. 1 1, 5 

o. 11 1. 58 0.3 3,7 

0. 10 0,95 o. 3 1. 6 

o. 18 0.75 2.3 1.1 

0,07 0.42 5. 1 z.z 
N 

0 

Bed 

1 no. 

P-98 

P-96 

P-78 

P-27 

P-26 

P-12 

to 15 

P-10 

to 11 

Additional analyses of sel£>cted samplt>s4 

Sample no. Pz05 v2o5 F Si02 Ti02 CaO 

2063 -- -- -- -- -- -- 2061 28.77 o. 31 3.03 10.06 0.04 41.73 

VEM-47-47 29.89 0.05 3. 13 2.43 0.04 42. 10 

2080 26.33 0.28 2.61 12.63 0.08 38.96 

2079 -- -- --

j 

-- -- -- . 20685 -- -- -- -- -- --

20676 18.48 o. 10 2. 01 16. 13 0.08 31.48 ~~-- -----~-----

Cr2o 3 Co Zn Cu Pb 

-- -- -- -- -- o. 14 0.004 0.008 0.003 0.001 

0.28 0.006 0.001 0.013 0.005 

0.08 0.004 0.010 0.0006 0.001 

-- -- -- -- --

-- -- -- -- -- 0.12 0.004 0.002 o. 020 0.005 ~~~ L__-~----· - ~- --

! Analyses made by U.S. Geological Survey, Geochemistry and Petrology Branch. 

6 Sample no. 2068 is a composite of samples VEM-9-47 through VEM-12-47. 

1 Sample no. 2067 is a composite of samples VEM-7-47 and VEM-8-47. 

8 C02 and S reported present. 

C02 reported present, strong, and S reported present. 

MgO 

--

o.zo 

2.36 

0.22 

--

--

4.21 

Ag 

0.0001 

0.0001 

0.0002 

0.0002 

0.0003 

0.0003 

0.0004 

Na2o K20 MnO Ni 

-- -- -- -- o. 73 0.96 0.003 o.ooz 

0.80 0.55 0.009 0.023 

0.91 1. 16 o. 005 0.002 

0~~51~:6 -- --

-- -- 0.035 0.039 -

Mo03 w C1 Organic 

matter 

-- -- -- -- 7 

0.002 -- 0.004 5.287 

0.002 <0.005 -- 7. 187 

0.012 -- 0.004 5. 82 

-- -- -- --

-- -- -- 0.002 <0.005 -- 4.-648 
N 

-

SPECTROGRAPHIC ANALYSES-COAL CANYON, WYOMING. LOT NO. 1201. 

Semi-quantitave analyses of samples of the phosphatic shale member of Phosphoria formation, Coal Canyon, Wyoming (see immediately preceding 

pages for location of section, thickness and description of strata, and chemical analyses of samples), made by U. S. Bureau of Mines Laboratory, Albany, 

Oregon. In addition to the elements listed in the table below, Sb, As, Bi, Cd, Co, Ga, Au, Li, Hg, Pt, Ta, Sn, and W were looked for in all samples but 

were not detected. 

Explanation of symbols 

A = more than 10 percent 

B = 5-l 0 percent 

C = 1-5 percent 

D = 0. 1-1 percent 

E = 0.01-0.1 percent 

F = 0.001-0.01 percent 

G = less than 0. 001 percent 

ND = not detected 

-------.-------------,----~--~----~--~-----·.-c-:- ~b I Cu 

~i~ Bed 

no. I Sample no. I Al I Ba I Be I B I Ca ~Si - P-107 DML- 9-47 C. ND ND F I A 

P-106 DML- 8-47 c ND ND F 

I 

A 

P-105 DML·· 7-47 c ND ND F c 

P-104 DML- 6-47 c ND ND E c 

P-103 DML- 5-47 c ND ND E c 

P-102 DML- 4-47 c ND ND E c 

P-101 DML- 3-47 c ND ND E c 

P-100 DML- 2-47 c ND ND F A 

P- 99 DML- 1-47 c ND ND :Eo' B 

P- 98 2063 c ND ND F A 

P- 97·· 2062 D E G E A 

P- 96 2061 D E G E A 

P- 95 2060 c ND ND F A 

P- 94 205.9 c ND ND F A 

P- 93 2058 c ND ND F A 

P- 92 VEM-61-47 c E G E A 

P- 91 VEM-60-47 c E ND F c 

P- 90 VEM-59-47 D ND ND F c 

P- 89 VEM-58-47 D ND ND F B 

P- 88 VEM-57-47 D ND ND F c 

P-.87 VEM-56-47 c E ND F A 

P- 86 VEM-55-47 D E ND F A 

P- 85 VEM-54-47 D ND ND F A 

P- 84 VEM-53-47 c E ND F B 

P- 83 VEM-52-47 D ND ND F A 

P- 82 VEM-51-47 c E ND F A 

P- 81 VEM-50-47 c E ND F B 

P- 80 VEM-49-47 c E ND F A 

P- 79 VEM-48-47 c E ND li' B 

P- 78 VEM-47-47 D E ND F A 

Fe Pb 

F ND G D E 

E ND G D ND 

E ND G D ND 

E ND G D ND 

E ND G D ND 

F ND G D ND 

E ND G D ND 

E ND G D ND 

F ND G D ND 

E ND G D ND 

D ND F D E 

D ND F c E 

E E G D ND 

E E G D ND 

E ND G E ND 

D ND F c E 

E E G· D ND 

E ND G D ND 

E ND G D ND 

E ND G D ND 

E E G c ND 

E ND G D ND 

E ND G D ND 

E E G D ND 

E ND G D ND 

E E G D ND 

E E G D ND 

D E G D ~D 

E E G D ND 

E E G D ND 

Mg Mn 

c .. E 

D F 

D F 

D F 

D F 

D E 

D E 

D F 

c E 

D F 

D E 

D E 

D F 

D ND 

D ND 

D E 

c E 

c F 

D F 

D F 

D F 

D F 

D F 

D F 

E F 

D E 

c E 

D E 

D E 

D F 

I 

I 

~ 

i 

F E F I E 

F E 

F E 

F E 

F F 

F F 

F F 

F E 

E E 

F E 

F E 

F F 

E E 

F E 

ND F 

F F 

ND ND 

F E 

ND F 

ND F 

F E 

F F 

F F 

F E 

F E 

F E 

F I E I 

B 

B 

A 

A 

A 

A 

A 

B 

A 

c 

B 

A 

c 

c 

c 

A 

A 

B 

c 

c 

B 

c 

c 

A 

c 

A 

A 

A 

A 

c 

Ag Na Sr Ti v Zn Zr 

ND E ND E F ND F 

ND D ND E E ND E 

ND E ND D E ND E 

ND D ND E E ND E 

ND E ND E E ND E 

ND D ND E F ND E 

ND D ND E E ND E 

ND D ND E F ND E 

ND E ND E F ND E 

E D ND E E ND E 

G D E E E F E 

G D E E D E E 

G D ND E D E }:t.., 

G D ND E D E F 

G D ND E D E F 

G D E 'E E E E 

G D ND E E E E 

ND D ND E E ND F 

G D E E D ND F 

ND E E E E ND F 

G D D E D E E 

G D E E E ND F 

G D E E E ND F 

G D E E E ND E 

G D D E E ND F 

ND E ND E E ND E 

Nc? I D ND E E ND E D E E D E E 

ND E ND E E ND E 

r· I D E E E I ND I .J( F 

I ' 
N 

N 

Bed 

no. 

P- 77 

P- 76 

P- 75 

P- 74 

P- 73 

P- 72 

P- 71 

P- 70 

P- 69 

P- 68 

P- 67 

P- 66 

P- 65 

P- 64 

P- 63 

P- 62 

P- 61 

P- 60 

P- 59 

P- 58 

P- 57 

P- 56 

P- 55 

P- 54 

P- 53 

P- 52 

P- 51 

P- 50 

P- 49 

P- 48 

P- 47 

P- 46 

P- 45 

P- 44 

P- 43 

P- 42 

P- 41 

P- 40 

P- 39 

P- 38 

P- 37 

P- 36 

Sample no. 

VEM-46-47 

VEM-45-47 

VEM-44-47 

VEM-43-47 

VEM-42-47 

VEM-41-47 

VEM-40-47 

VEM-39-47 

VEM-38-47 

VEM-37-47 

VEM-36-47 

VEM-35-47 

VEM-34-47 

VEM-33-47 

VEM-32-47 

VEM-31-47 

VEM-30-47 

VEM-29-47 

VEM-28-47 

VEM-27-47 

VEM-26-·!7 

VEM-25-47 

VEM-24-47 

VEM-23-47 

VEM-22-47 

VEM-21-47 

VEM-20-47 

VEM-19-47 

VEM-18-47 

VEM-17-47 

VEM-16-47 

VEM-15-47 

VEM-14-47 

LES- 10-47 

LES- 9-47 

LES- 8-47 

LES- 7-47 

LES- 6-47 

LES- 5-47 

LES- 4-47 

LES- 3-47 

LES- 2-47 

Al 

c 

D 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

c 

D 

c 

c 

c 

·c 

0 

c 

D 

c 

c 

c 

c 

c 

c 

c 

c 

c 

Ba ·Be B Ca 

E ND E A 

ND ND F A 

E G E B 

E G D c 

E G D c 

E ND E c 

E G E A 

E ND F A 

E G E A 

E ND E c 

E ND E c 

E NO F A 

E ND E B 

E ND F B 

E ND E A 

E G E A 

E ND F A 

E ND F A 

E G E A 

E ND F B 

E ND E B 

E ND F A 

E ND F A 

E ND F A 

E ND F A 

E ND F A 

E NO F A 

E NO F A 

E G E A 

E NO F A 

E ND F B 

E G E A 

E NO F A 

ND ND F A 

ND ND F A 

NO ND F A 

NO ND F B 

ND ND F B 

ND ND F B 

ND ND F A 

ND ND F A 

ND ND F A 

Cr Cb Cu Fe Pb Mg I Mn 

E E G D ND D E 

E E G E ND D E 

E ND F c E c E 

D ND F c E c E 

D ND F B E c E 

E E G c ND D E 

D ND F c E c E 

E E G D NO D E 

D ND F c E D E 

E E G D ND D E 

E E G c ND D E 

E E G D ND c E 

D D G c ND D E 

E ND· G D ND c E 

D E G c ND D E 

D ND F c E c E 

E D G 'D ND c E 

E ND G D ND c F 

c ND F c E B E 

E ND G E ND c F 

E ND G D ND D F 

E ND G E ND c F 

E ND G D ND c F 

E ND G E ND c F 

E E G D ND D F 

E ND G E NO' c F 

E E G D ND D F 

E ND G D NO c .. F 

D ND F c E c E 

E ND G E ND c F 

E ND G E ND c F 

E ND F c E B E 

E ND G E ND D F 

E E G 0 NO D ND 

E ND G 0 ND D ND 

E ND G 0 NO c F 

E NO G c ND D F 

E NO G D ND c F 

E ND G D ND D F 

E ND G D ND c F 

E ND G D ND c F 

E ND G D ND c F 

Mo Ni Si Ag Na Sr Ti v Zn Zr 

ND E B G D E E E Nn F 

ND ND c ND ND ND E E ND F 

E E A G D F D D E E 

D D A G D F D D D E 

D D A G D F D D i: E 

r: E A G D ND D D E E 

E E A G D F 0 E E E 

ND F B ND D ND E E ND E 

F E A G D E D E F E 

ND E A ND D ND E E ND E 

F E A ND D ND D E ND E 

ND F A ND D ND E E ND E 

F E A G D E E E E E 

ND F A ND D ND E E ND E 

F E A G D E E E E E 

E E A G D E E D E E 

F F B ND D NO E E ND E 

F E B G D ND E E ND E 

E 0 A G D E D E F E 

F E c ND E ND E E ND F 

F E B G E E E E E F 

ND F c ND E E E E ND F 

F E c G D E E E E F 

NO F c G E E E E ND F 

F E B ND D E E E E E 

NO F c G E E E E ND F 

F E c G D E E E E E 

F E c G E E E E ND F 

F E· B G D E E E F E 

F E c .... 

u E E E E ND F 

F . E c G E E E E ND F 

F E A G D E E E E E 

F E c G E E E E NO F 

E E c G D ND E 0 E F 

F E c G 0 NO E E E F 

F E A G E ND E E E F 

F E A G D NO E E E E 

F F A G D NO E E ND E 

F E A G D ND E E E F 

F F A G E ND E E ND F 

F F A G E ND E E ND F 

F F A G E ND E E ND F 
N 

~ 

P- 35 

P- 34 

P- 33 

P- 32 

P- 31 

P- 30 · 

P- 29 

P- 28 

P- 27 

P- 26 

P- 25 

P- 24 

P- 23 

P- 22 

P- 21 

P- 20 

P- 19 

P- 18 

P- 17 

P- 16 

P- 15 

P- 14 

P- 13 

P- 12 

P- 11 

P- 10 

P- 9 

P- 8 

P- 7 

P- 6 

P- 5 

P- 4 

P- 3 

P- 2 

P- 1 

LES- 1-47 

VEM-13-47 

2086 

2085 

2084 

2083 

2082 

2081 

2080 

2079 

2078 

2077 

2076 

2075 

2074 

2073 

2072 

2071 

2070 

2069 

VEM-12-47 

VEM-11-47 

VEM 10-47 

VEM- 9-47 

VEM- 8-47 

VEM- 7-47 

2066 

2065 

2064 

VEM- 6-47 

VEM- 5-47 

VEM- 4-47 

VEM- 3-47 

VEM- 2-47 

VEM- 1-47 

c ND NO F 

0 E G F 

c E G E 

c E ND F 

c E NO F 

c E ND F 

c E ND F 

c NO ND F 

c ND NO F 

c E NO F 

0 ND NO F 

c ND ND F 

c ND NO F 

c NO NO F 

c ND ND F 

c ND ND F 

c ND ND F 

c ND ND F 

c NO NO F 

0 ND NO F 

D E NO F 

0 E ND F 

0 E ND F 

0 E ND F 

0 E ND F 

c E ND F 

c ND ND F 

c E ND F 

c E ND E 

c E NO F 

c E ND E 

c E ND E 

c E ND E 

c E ND E 

c E G F 

A E NO G D ND D F F 

A E NO F D E D F E 

A D ND F c E D E E 

B E E G c ND c F F 

B E E G c NO D F F 

c E E G c ND D F F 

c E E G c NO D F F 

A F F G 0 ND c F F 

A E E G 0 ND D F F 

A E E G E ND D F F 

A E F G E ND 0 F F 

A E F G E NO 0 F F 

A E F G E NO 0 F F 

A E E G 0 E D F F 

A E E G D ND D F F 

B E F G D ND c F F 

A E F G D ND D F F 

B E ND G D ND c F F 

B E NO G D ND D F F 

A E NO G c E c E F 

B E ND G E ND D F F 

B E ND G E NO c F ND 

A E ND G E ND c F NO 

A E E G D NO c E F 

B E D G D ND D F F 

c E E G D NO D E E 

B E NO G D NO c F F 

A E E G c E D F F 

c E E G c E D F E 

c F E G D ND c E F 

c E E G c ND 0 F E 

D E! E G c ND D F E 

D E E G c ND D F F 

D E E G c NO D E F 

A E NO F D E c E F 

E A G E ND E E ND E 

E A G D E E E E E 

E A F D E 0 0 E E 

E A G D ND 0 D E E 

E A G D E D 0 E E 

E A G 0 E D E E E 

E A G D ND 0 E E E 

F B G 0 ND E F E F 

E c G D E E E D F 

E c F D E E E E F 

E c G D E E E E F 

E c G D E E E E F 

E c G D E E E E F 

E c G D E E E E F 

E B G D E E E E F 

E A G D E E E E F 

E B G D E E E E F 

E B G D ND E F E F 

E B G E E E F E F 

E B G D ND E F ND F 

E B G E E E E ND E 

F B G E E E F ND F 

F B G E E E F ND F 

F c G E F E E ND E 

E c G D E E D E E 

E A G D F E E E E 

E B G E ND E F E F 

E A G D E E E E E 

E A G E E D E E E 

F A G E F D E ND E 

E . A G E E D D ND E 

F A G E E D D ND E 

E A G E E D E ND E 

E A G E E D E ND E 

E A G D D E F F E 
N 

~ 

NORTH FORK OF PINE CREEK, WYOMING. LOT NO. 1Z04. 

Phosphatic shale member of Phosphoria formation sampled in bulldozer trench on North Fork of Pine Creek, sec. 13, T. Z5 N., R. 118 W., 

Lincoln County, Wyoming, 10 miles northeast of Cokeville on east limb of syncline. Beds strike N. 10-z5• E. and dip 37-45° W. Section measured 

by R. A. Hoppin, V. E. McKelvey, and L. E. Smith and sampled by R. P. Sheldon, 0. A. Payne, and R. S. Sears in June and July 1947. Samples analyzed 

for Pz_05 and acid insoluble by U.S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, 

U. S. ueological Survey, Washington, D. C. 

Chemical analyses (percent) Cumulative Thickness x Bed Sample Thickness I I· , I Loss on I Acid thickness percent P2 Rock description 0 no. (feet) P z05 Alz03 Fez03 ignition insoluble (feet) (cumulahvef no. 

Phosphatic shale member of Phosphoria formation 

P-83 Mudstone, calcareous RAH- 63-47 ·Z. Z 0.3 -- -- -- 67.8 z.z 0.66 

P-az Mudstone, calcareous RAH- 6Z-47 Z.4 7. 4 -- -- -- 50.7 4.6 18.4Z 

P-81 Limestone, arRllaceous; fos. col. no. 47-HW-54 RAH- 61-47 Z.5 6. 3 -- -- -- 27.3 7. 1 34.17 

P-80 Limestone, argillaceous, fos. col. no. 47-HW-53 RAH- 60-47 I. 5 o. 6 -- -- -- 44.0 8. 6 35.07 

P-79 Limestone, argillaceous; fos. col. 

no. 47-HW-5Z RAH- 59-47 1. 9 o. 7 -- -- -- 41.9 10. 5· 36.40 

P-78 Mudstone, calcareous: fos. col. no. 47-HW-51 RAH- 58-47 2.7 I. Z -- -- -- 60.9 13.2 39 .• 64 

P-77 Mudstone, calcareouss fos. col. no. 47-HW-50 RAH- 57-47 I. 6 o. 7 -- -- -- 59.0 14.8 40.76 

P-76 Mudstone, calcareous RAH- 56-47 1.0 o. 7 -- -- -- 60.0 15.8 41.46 

P-75 Limestone, argillaceous RAH- 55-47 3.Z o. 6 -- -- -- 49.7 19.0 43.38 

P-74 Mudstone RAH- 54-47 3.8 I. 0 -- -- -- 8Z. 7 22.8 47. 18 

P-73 Mudstone, phosphatic; fos. col. no. 47-HW-Z1 RAH- 53-47 0.9 13. 3 -- -- -- 61. 1 Z3.7 59. 15 

P-7Z Mudstone; fos. col. no. 47-HW-ZO RAH- 52-47 4.4 4. 7 -- -- -- 83.6 28. 1 79.83 

P-71 Mudstone RAH- 51-47 2.6 4.3 -- -- -- 74.6 30.7 91.01 

P-70 Mudstone, calcareous RAH- 50-47 1. 4 z. 3 -- -- -- 65.7 32. 1 94.Z3 

P-69 Mudstone RAH- 49-47 1.3 3.3 -- -- -- 79.6 33.4 98.52 

P-68 Phosphate rock RAH-48-47 3.5 34.7 1.2 0.45 3.40 5. 3 36.9 219.97 

P-67 Mudstone, calcareous RAH- 47-47 1.4 2. 8 9. 72 1.7 6.44 72.2 38.3 223.89 

P-66 Phosphate rock, argillaceous RAH- 46-47 4.4 25.9 3.5 0.89 3.92 23.4 42.7 337.85 

P-65 Phosphate rock; fos. col. no. 47-HW-19 RAH- 45-47 1.0 30. 1 2. 9 1. 3 z. 78 17. 7 43.7 367.95 

P-64 Mudstone RAH- 44-47 1. 3 1.4 -- -- -- 84.8 45.0 369. 77 

P-·63 Mudstone LES-116-47 1.8 3. 3 -- -- -- 77.0 46.8 375. 71 

P-62 Mudstone LES-115-47 0,9 I. 0 -- -- -- 84.3 47.7 376. 61 

P-61 Phosphate rock, argillaceous LES-114-47 0.4 24. 1 -- -- -- Z4.9 48. 1 386.25 

P-60 Mudstone, phosphatic LES-113-47 0.6 13.6 -- -- -- 47.2 48.7 394.41 

P-59 Mudstone LES-112-47 1, 0 1. 1 -- -- -- 78.6 49.7 395. 51 

P-58 Phosphate rock, calcareous, argillaceous LES-111-47 0.4 20.8 -- -- -- 22.7 50. 1 403.83 

P•57 Mudstone, phosphatic LES-110-47 0,55 14.4 -- -- -- 39.4' 50.65 411. 74 

P-56 Limestone, argillaceous, phosphatic LES-109-47 o.s 9. 2 -- -- -- 35.0 51. 15 416.34 
P-55 Limestone, argillaceous: fos. col. no. 47-HW-18 LES-108:-47 1. 4 j. 8 -- -- -- 22.6 52.55 421.66 

P-54 Mudstone LES-107-47 0.5 o. 5 -- -- -- 67.3 53.05 421. 91 

P-53 Mudstone LES-106-47 0.45 o. 2 -- -- -- 71.6 53.50 422.00 

P-52 Mudstone LES-105-47 0.95 o. 2 -- -- -- 80. 1 54.45 422. 19 

Mudstone LES-3,54-47 {0. 5) 0.3 -- -- -- 78.0 

LES-354-47 represents the upper half of LES-105, bed P-52. 

P-51 Mudstone LES-104-47 1.0 6.3 -- .. - -- 55.9 55.45 

I 

428.49 

P-50 Mudstone, calcareous; fos. col. no. 47-HW-17 LES-103-47 0.7 2. 1 -- -- -- 51. 7 56. 15 429.96 

P-49 Mudstone LES-102-47 0.7 1. 3 -- -- 84.6 56.85 430.87 

P-48 Mudstone, phosphatic LES-101-47 0.7 12. 5 -- -- -- 51. 1 57.55 439.62 

P-47 Mudstone, calcareous and limestone LES-100-47 3.0 0.4 -- -- -- 46.7 60.55 440.82 

P-46 Mudstone, calcareous LES- 99-47 2.0 0.9 -- -- -- 63.0 62.55 442.62 

P-45 Mudstone, phosphatic LES- 98-47 2.0 10.0 -- -- -- 49.8 64.55 462.62 

P-44 Mudstone, calcareous LES- 97-47 3.6 6. 7 -- -- -- 56.0 68. 15 486.74 

P-43 Phosphate rock, argillaceous, contains 

calcareous concretions; fos. col. 

no. 47-HW-41 LES- 96-471 3.9 15.2 -- -- -- 30. 1 n. os 546.02 

P-42 Limestone, argillaceous; fos. col. no. 

47-HW-16 LES- 95-47 2.8 1. 0 -- -- -- 28.3 74.85 548.82 

N 

Ul P-41 Phosphate rock, argillaceous, calcareous LES- 94-47 1.9 16.4 -- -- -- 35.9 76. 75 579.98 

P-40 Limestone, argillaceous, phosphatic LES- 93-47 1. 0 8.4 -- -- -- 34.7 77.75 588.38 

P-39 Phosphate rock, argillaceous, calcareous LES- 92-47 2. 1 17.6 -- -- -- 33.8 79.85 625.34 

P-38 Phosphate rock., argillaceous, calcarP.ous LES- 91-47 0.5 16.3 -- -- -- 35.7 80.35 633.49 

P-37 Phosphate rock, argillaceous, calcareous, 

contains chert lenses LES- 90-47 o. 75 19.0 -- -- -- 26.7 81. 10 647. 74 

P-36 Limestone, argillaceous LES- 89-47 3.0 4. 7 -- -- -- 22.2 84. 10 661.84 

P-35 Chert., contains quartz vugs; fos. col. no. 47-HW-15 LES- 88-47 0.7 5. 5 -- -- -- 77.8 84.80 665.69 

P-34 Mudstone, phosph'atic LES- 87-47 o. 8 13. 7 -- -- -- 51.4 85.60 676.65 

P-33 Phosphate rock, silty and mudstone LES- 86-47 0.5 26. 1 -- -- -- 20.4 86. 10 689.70 

P-32 Phosphate rock LES- 85-47 2. 15 33.0 -- -- -- 8. 6 88.25 760.65 

P-31 Phosphate rock, argillaceous LES- 84-47 0.5 18.0 -- -- -- 39.1 88.75 769.65 

P-30 Mudstone, phosphatic, calcareous LES- 83-47 2.3 13. 1 -- -- -- 41.8 91.05 799.78 

P-29 Limestone, argillaceous LES- 82-47 2.2 0.6 -- -- 35. 1 93.25 801. 10 

P-28 Mudstone, calcareous, phosphatic LES- 81-47 0.8 7. 8 -- -- -- 51.0 94.05 807.35 

P-27 Limestone, argillaceous, contains chert 

lenses LES- 80-47 0.8 5. 7 -- -- -- 30.0 94.85 811.90 

P-26 Phosphate rock LES- 79-47 0.85 30.2 -- -- -- 12.9 95. 70 837.57 

P-25 Mudstone, calcareous LES- 78-47 0.3 4. 8 -- -- -- 62. 1 96.00 839.01 

P-24 Mudstone, calcareous LES· 77-47 1. Z 0.4 -- -- -- 70.5 97.20 839.49 

P-23 Mudstone LES- 76-47 0.35 3. 8 -- -- -- 71.2 97. 55 840.82 

P-22 Mudstone LES- 75-47 1.6 s. 4 -- -- -- 73.7 99. 15 849.46 

1 Fossil collection made by H. Wedow, Paleontology and Stratigraphy Branch. TJ. S. Geological Survey, 

..;. 
N 

aBed 

no. Rock description 

P-Zl Mudstone 

P-ZO Phosphate rock 

P-19 Mudstone, contains chert lenses 

P-1:,. Mudstone and chert 

P-17 Mudstone, calcareous and chert 

P-16 Mudstone, calcareous and chert 

P-15 Mudstone,· calcareous and chert 

P-14 Mudstone, calcareous and chert 

P-13 Limestone, argillaceous and phosphate 

rock 

P-12 Limestone, argillaceous 

P-11 Mudstone, calcareous 

P-10 Limestone, argillaceous 

P- 9 Mudstone, phosphatic 

P- 8 Mudstone, calcareous 

P- 7 Limestone, argillaceous 

P- 6 Mudstone, calcareous 

P- 5 Limestone, argillaceous 

P- 4 Mudstone 

P- 3 Mudstone, calcareous 

P- 2 Limestone, argillaceous 

P- 1 Phosphate rock, mudstone, and chert 

Cw-Z I Sandstone, phosphatic 

Cw-1 Mudstone, calcareous 

Sample 

no. 

LES- 74-47 

LES- 73-47 

LES- 7Z-47 

LES- 71-47 

LES- 58.-47 

LES- 57-47 

LES- 56-47 

LES- 55-47 

LES- 54-47 

LES- 53-47 

LES- 5Z-47 

LES- 51-47 

LES- 50-47 

LES- 49-47 

LES- 48-47 

LES- 47-47 

VEM-104-47 

VEM-103-47 

VEM-10Z-47 

VEM-101-47 

VEM-10()...47 

VEM- 99-47 

VEM- 98-47 

Thickness 

{feet) Pz05 

0.75 1.7 

0.9 31.7 

4.0 1.0 

1.8 1.0 

z.o 0. 6 

1. 9 1. 1 

1.5 1. 1 

l.Z 1. z 

0.7 6. 3 

0.85 1.9 

.1,8 6. 8 

0,65 z. 2 

0,85 13.2 

0.45 3.9 

1. 9 0.6 

0.5 1.3 

1. 9 0.4 

0.5 1.1 

1. 9 0.4 

1. 1 0.4 

0.4 26.4 

Wells formation 

Chemical analyses (percent) 

Alzo3 F'ezo3 

Loss on Acid 

ignition insoluble 

-- -- -- 83.9 

-- -- -- 15.6 

-- -- -- 9Z.7 

-- -- -- 85.8 

-- -- -- 43.9 

-- -- -- 60.6 

--· -- -- 66.6 

-- -- -- 48.7 

-- -- -- Z6.0 

-- -- -- 25.4 

-- -- -- 52.7 

-- -- -..: 19. 0 

-- -- -- 46.3 

-- -- -- 57.4 

-- -- -- 34.9 

-- -- -- 74.0 

-- -- -- 33.0 

-- -- -- 75.6 

-- -- -- 57.9 

-- -- -- 45.4 

-- -- -- 17.4 

Cumulative 

thickness 

(feet) 

99.90 

100,80 

104.80 

106.60 

108.60 

110. 50 

liZ. 00 

113. zo 

113.90 

114. 75 

116. 55 

117. zo 

118. 05 

118. 50 

120.40 

120.90 

122.80 

1Z3.30 

1Z5.ZO 

1Z6.30 

1Z6. 70 

1.4 

3. 3 

Thickness x 

percent P2 o 5 (cumulat1ve1 

850.74 

879. Z6 

883.26 

885.06 

886.26 

888.36 

890.00 

891.44 

895.86 

897.47 

909.71 

911. 14 

922.36 

924. 12 

925.26 

9Z5,90 

926.66 

927.22 

9Z7.98 

928.42 

938.98 
N 

..., 

SPECTROGRAPHIC ANALYSES-NORTH FORK OF PINE CREEK, WYOMING. :LOT NO. 1204. 

Semi-quantitative analyses of a few samples of the Phosphoria formation, North Fork of Pine Creek, Wyoming (see 

immediately preceding pages for location of section, thickness and description of strata, and chemical analyses of samples). 

made by the U. S. Geological Survey Laboratory, Geochemistry and Petrology Branch. In addition to the elements listed in 

the table below, Sb, A~. Be, Bi, Cd, Ce, Cs, Co, Cb, Ge, In, Hg, Mo, Nd, Pt, Re, Rb, Sc, Ta, Tl, Th, and W were 

looked for in all samples but were not detected. 

Bed 

no. 

P-68 

P-67 

P-66 

P-65 

Sample no. Al Ba 

RAH-48-47 D F 

RAH-47-47 -- F 

RAH-46-47 D F 

RAH-45-47 D F 

Explanation of symbols 

A • more than 10 percent 

B' :: 1-10 percentl 

D = 0.01-0.1 percent 

E = 0.01-0.1 percent 

B Ca Cr Cu Fe 

F A D F D 

F B' E F D 

F A D F D 

F A E F D 

La 

E 

ND 

E 

E 

Ph 

E 

E 

E 

F 

F "' 0. 001-0. 01 percent 

G = less than 0. 001 percent 

ND = not detected 

Mg Mn Ni p Si Ag Na 

D F F -- B' G D 

D E F B' A G D 

D F F A B' G D 

D E F A B' G D 

B1 is equivalent to Band C of Bureau of Mines analyses . 

Sr Sn Ti v y Zn 

D F E E E F 

D F D E ND F 

D F E E E F 

D F E E E F 

Zr 

E 

E 

E 

E 
N 

a 

MIDDLE FORK OF PINE CREEK, WYOMING. LOT NO. 120~. 

Phosphoria formation sampled on north wall of Middle Fork of Pine Creek, sec. 35, T. 25 N., R. 118 W., Lincoln County, Wyoming, on westdipping Tump Range monocline. Beds R-26 to U-30 sampled in trench 150 feet above creek, all other beds in trench 50-ZOO feet above creek. Beds 

R-1 to R-25 measured in natural exposures 150-400 feet above creek. Beds strike N. 10• E. and dip 26• W. Section measured by R. A. Hoppin, 

F; C. Armstrong, and L. E. Smith and sampled by R. S. Sears and 0. A. Payne in June, July, and August 1947. Samples analyzed for P 0 and acid 

insoluble by U. S. Bureau of Mines Laboratory, Albany, Oregon, and for other constituents by Trace Elements Section Laboratory, U. ~ deological 

Survey, Washington, D. C. 

Bed 

no. 

'lt-d-1 

U-30 

U-29 

U-28 

U-27 

U-26 

U-25 

U-24 

U-23 

y-22 

U-21 

U-20 

U-19 

U-18 

U-17 

U-16 

U-15 

U-14 

U-13 

U-12 

U-11 

U-10 

u- 9 

u- s 

u- 1 

u- 6 

Rock description 

-~-

Mudstone, calcareous, fos. fol. nos. 47-HW-31 and 47-HW-31A 

Phosphate rock, argillaceous, calcareous; 

fos. col. nos. 47-HW-30 and 47-HW-30A 

Chert, calcareous, phosphatic 

Chert, calcareous 

Chert, calcareous 

Chert, calcareous 

Mudstone, calcareous 

Mudstone, calcareous 

Mudstone, phosphatic, calcareous 

Chert, calcareous 

Chert, calcareous 

Chert, calcareous 

Mudstone and limestone 

Mudstone, calcareous 

Mudsttoe, calcareous 

Mudstone, calcareous 

Mudstone, calcareous 

Mudstone, calcareous 

Mudstone, calcareous 

Phosphate rock and calcareous mudstone 

containing chert 

Mudstone, contains chert 

Mudstone, calcareous 

Mudstone, calcareous 

Mudstone 

Limestone, argillaceous, phosphatic 

Mudstone, calcareous 

Sample Thickness 

no. (feet) P20s 

Dinwoody formation 

Upper shale member of' Phosphoria formation 

RAH-43-47 2.2 18. 0 -- -- RAH-42-47 1.9 8.2 -- -- RAH-41-47 1.1 1. 6 -- -- RAH-40-47 2.8 0.9 -- -- RAH-39-47 1.0 1. 1 -- --

RAH-38-47 1.1 1.7 -- -- RAH-37-47 1.4 4.4 -- -- RAH-36-47 0.6 13. 1 -- -- RAH-35-47 1.6 1.7 _ _, -- RAH-34-47 0.7 2. 3 -- -- RAH-33-47 0.7 2. 0 -- -- RAH-32-47 1. 0 1.6 -- -- RAH-31-47 2.5 1.6 -- -·- LES- 46-47 2.6 2.8 -- -- LES- 34-47 1.0 3.4 -- --

LES- 33-47 2.4 2. 3 -- -- LES- 32-47 1. 0 3. 3 -- -- LES- 31-47 1.5 2.9 -- --

LES- 30-47 1.5 6. 7 -- -- LES- 29-47 1. 05 3. 3 -- --

LES- 28-47 1.4 3. 2 -- -- LES- 27-47 2.4 3. 8 -- -- LES- 26-47 2.5 3.4 -- -- LES- 25-47 0.65 8.7 -- -- LES- 24-47 3.4 5. 7 -- --

Cumulative Thickness x 

thickness percent P2 0 

(feet) (cumulatlvef 

1.1 

-- 29. 1 2. 2 39.60 

-- 47.0 4. 1 55. 18 

-- 51.3 5. 2 56.94 

-- 64.6 B. 0 59.46 

-- 62.4 9.0 60.56 

-- 60. 7 10. 1 62.43 

-- 56. 1 11. 5 68.59 

-- 41.0 12. 1 76.45 

-- 60.6 13. 7 79. 17 

-- 62.3 14.4 80. 78 

-- 65.2 15. 1 82. 18 

-- 65.2 16. 1 83. 78 

-- 66.6 18. 6 78. 78 

-- 67. 7 21. 2 95.06 

-- 52.4 22.2 98.46 

-- 61. 7 24.6 103.98 

-- 65.2 2.5. 6 107.28 

--

I 

65.8 27. 1 Ill. 63 

-- 61. 1 28.6 121,68 

-- I 72. 1 29.65 125. 14 

-- 70.2 31,05 129.62 

-- 66.6 33.45 138.74 

-- 73.9 35.95 147.24 

-- 34. 7 36.60 152.90 

-- 62.6 40.00 172.28 
N 

..0 

iJ- 5 

u- 4 

u- 3 

u- 2 

u- 1 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

R 

P. 

-26 

-25 

-24 

-23 

-22 

-21 

-20 

-19 

-18 

-17 

-16 

-15 

-14 

-13 

-12 

-11 

-10 

- 9 

- 8 

- 7 

- 6 

- 5 

- 4 

- 3 

- 2 

- 1 

Phosphate rock, argillaceous LES- 23-47 0.55 23. 1 -- -- -- Limestone, argillaceous LES- 22-47 1. 45 5. 9 -- -- -- Mudstone, calcareous LES- 21-47 5.0 1. 8 -- -- -- Mudstone, calcareous LES- 20-47 1. 9 2. 2 -- -- -- Phosphate rock, argillaceous; fos. col. no. 47-HW-29 LES- 19-47 0.6 25. 1 -- -- -- Rex chert member of Phosphoria formation 

Limestone, phosphatica fos. col. no. 47-HW-2B LES:..18-47 0.3 11.4 -- -- -- Limestone: fos. col. no. 47-HW-33 -- 3.5 -- -- -- -- Limestone, phosphatic -- 0.3 -- -- -- -- Limestone, contains chert; fos. col. no. 47-HW-:>6 -- 5.0 -- -- -- -- Limestone, phosphatic -- 2.3 -- -- -- -- Limestone, cherty; fos. col. no. 47-HW-37 -- 5. 1 -- -- -- -- Limestone and chert; fos. col. na. 47-HW-38 -- 9.0 -- -- -- -- Limestone -- 2.0 -- -- -- -- Limestone and chert: fos. col. nos. 47-HW-39 and 47-HW-40 -- 8.0 -- -- -- -- Limestone; fos. col. no. 47-HW-27 -- 5.4 -- -- -- -- Limestone: fos. col. no. 47-HW-26 -- 5.4 -- -- -- -- Limestone; fos. col. no. 47-HW-25 -- 2. 5 -- -- -- -- Covered interval, probably fossiliferous 

limestone and chert -- 23.0 -- -- -- -- Limestones fos. col. nos. 47-HW-23 and 

47-HW-24 -- 11.0 -- -- -- -- Limestone and chert -- 15.0 -- -- -- -- Limestone -- 4.5 -- -- -- -- Limestone and chert -- 7. 5 -- -- -- -- Limestone and chert -- 6.2 -- -- -- -- Mudstone, calcareous -- 2.5 -- -- -- -- Mudstone, calcareous -- 5.0 -- -- -- -- Mudstone, calcareous -- 5.0 -- -- -- -- Mudstone, calcareous -- 5.0 -- -- -- -- Mudstone, calcareous -- 4.0 -- -- -- -- Chert and mudstone -- 2.6 -- -- -- -- Quartzite, phosphatic -- 1.2 -- -- -- --

Mudstone, dolomitic -- 5.0 -- -- -- -- 1 Fossil collection made by H. Wedow, Paleontology and Stratigraphy Branch, U • .S. Geological Survey. 

24.8 40.55 184.98 

41.8 42.00 193.54 

56.8 47.00 202.54 

65.0 48.90 206.72 

22.3 49.50 221.78 

10.0 0.3 3.42 

-- 3. 8 -- -- 4. 1 --

-- 9. 1 -- -- 11.4 --

-- 16.5 -- -- 25.5 -- -- 27.5 -- -- 35.5 -- -- 40.9 -- -- 46.3 -- -- 48.8 --

-- 71.8 -- -- 82.8 -- -- 97.8 -- -- 102.3 -- -- 109.8 -- -- 116.0 -- -- 118.5 -- -- 123.5 -- -- 128.5 -- -- 133.5 -- -- 137.5 -- -- 140.1 -- -- 141.3 -- -- 146.3 --
w 

0 

Bed 

no. 

P-73 

P-7Z 

P-71 

P-70 

P-69 

P-68 

P-67 

P-66 

P-65 

P-64 

P-63 

P-6Z 

P-61 

P-60 

P-59 

P-58 

P-57 

P-56 

P-55 

P-54 

P-53 

P-5Z 

P-51 

P-50 

P-49 

P-48 

P-47 

P-46 

P-45 

P-44 

P-43 

P-4Z 

P-41 

P-40 

P-39 

P-38 

P-37 

P-36 

P-35 

P-34 

• Rock description 

Mudstone, calcareous 

Mudstone. phosphatic., calcareous 

Mudstone. calcareous 

Phosphate rock., cherty 

Limestone, argillaceous 

Mudstone, calcareous 

Mudstone and argillaceous limestone 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Mudstone and phosphate rock 

Limestone, argillaceous 

Phosphate rock 

Phosphate rock, argillaceous 

Phosphate rock: fos. col. no. 4 7-HW-ZZ 

Mudstone, calcareous 

Phosphate rock, argillaceous 

Mudstone. calcareous 

Phosphate rock 

Limestone. argillaceous 

Phosphate rock, argillaceous 

Limestone, argillaceous 

Phosphate rock 

Phosphate rock, argillaceous 

Phosphate rock, argillaceous 

Limestone, argillaceous 

Mudstone 

Phosphate rock, argillaceous 

Mudstone 

Mudstone 

Mudstone 

Mudstone 

Mudstone 

Dolomite 

Mudstone, calcareous 

Mudstone 

Mudstone, phosphatic 

Limestone, argillaceous 

Mudstone, calcareous 

Mudstone, phosphatic 

SS:t.le I T(!e~)ss I P zosl -~-~--~ ---rr.-- u=- 4 '"fn' -. - I 

Phosphatic shale member of Phosphoria formation 

LES- 11-47 4.0 0.98 -- -- -- 63.19 

LES- IZ-47 z.o 10.63 -- -- -- 48.Z 

LES- 13-47 4.Z I. 0 -- -- -- 49.6 

LES-14-47 0.7 Z3.8 -- -- -- Z6.0 

LES- 15-47 z.a 1. 8 -- -- -- 4Z.5 

LES- 16-47 I. 7 1. z -- -- -- 73.6 

LES-17-47 1. 5 s. 3 -- -- -- Z9.3 

LES- 35-47 1.3 33.5 0.7 o. 55 5.00 3. 1 

LES- 36-47 0.7 34.9 0.8 0.65 Z.98 4. 1 

LES- 37-47 1. 0 3Z. 6 1. z 0.85 3.88 6.4 

LES- 38-47 0.4 8. z -- -- -- 60.0 

LES- 39-47 l.Z o. 6 -- -- -- 47. 5· 

LES-40-47 0.9 3Z.O -- -- -- 6.6 

LES- 41-47 z.o Z6.Z -- -- -- Z4.Z 

LES-4Z-47 1. 5 zs. 8 -- -- -- 15.5 

LES-43-47 Z.3 1.4 -- -- -- 57.6 

LES- 44-47 0.4 ~5. 8 -- -- -- Zl. 7 

LES- 45-47 Z.8 0.6 -- -- -- 74.9 

LES- 59-47 0.4 Z8.8 -- -- -- 10. z 

LES- 60-47 0.5 1. 3 -- -- -- 4Z.4 

LES- 61-47 0.35 ZZ.6 -- -- -- Z7. 6 

LES- 6Z-47 1. 4 0. 6 -- -- -- 47. 1 • 

LES- 63-47 0.6 Z3. 5 -- -- -- 19. 1 

LES- 64-47 0.6 16.8 -- -- -- 34.6 

LES- 65-47 0.6 14.6 -- -- -- 36.3 

LES- 66-47 3.5 o. 8 -- -- -- 4Z.7 

FCA-15•47 0.45 4.4 -- -- -- 55.3 

FCA-16-47 0.4 Zl. 7 -- -- -- ZZ.8 

LES- 68-47 0.45 o. z -- -- -- 61.5 

FCA-17-47 0.5 o. 1 -- -- -- 66.7 

FCA-18-47 0.65 0.4 -- -- -- 73.6 

FCA-19-47 0.5 3. z -- -- -- 67.6 

FCA-Z0-47 0.35 6.4 -- -- -- 55.3 

FCA- 1-47 0.8 o. 5 -- -- -- 7.6 

FCA- Z-47 1. 05 z. 7 -- -- -- 49.5 

FCA- 3-47 0.6 z.z -- -- -- 80.8 

FCA- 4-47 0.6 13.0 -- -- -- 43.4 

FCA- 5-47 Z.3 0.4 -- -- -- 4Z.4 

FCA- 6-47 1.8 0.9 -- -- -- 53.6 

FCA- 7-47 z.os 10.4 -- -- -- 49.5 

Cumulative 

thickness 

(feet) 

4.0 

6.0 

lO.Z 

10.9 

13.7 

15.4 

16.9 

18. z 

18.9 

19.9 

Z0.3 

Zl. 5 

ZZ.4 

Z4.4 

zs. 9 

za.z 

Z8.6 

31.4 

31.8 

3Z. 3 

3Z. 65. 

34.05 

34.65 

35.Z5 

35.85 

39.35 

39.80 

40.ZO 

40.65 

41. 15 

41.80 

4Z.30 

4Z.65 

43.45 

44.50 

45. 10 

45.70 

48.00 

49.80 

51.85 

Thickness x percent P2 0 5 (cumulatiVe I 

3.9Z 

Z5.18 

Z9.38 

46.04 

51.08 

53.1Z 

61.07 

104.6Z 

1Z9.05 

161.65 

164.93 

165.65 

194.45 

Z46.85 

Z85.55 

Z88.77 

Z99.09 

300.77 

31Z.Z9 

31Z. 94 

3Z0.85 

3Z1.69 

335.79 

345.87 

354.63 

357.43 

359.41 

368.09 

368.18 

368.Z3 

368.49 

370.09 

37Z. 33 

37Z.73 

375.56 

376.88 

384.68 

385.60 

387.ZZ 

408.54 
w -

P-33 

P-32 

P-31 

P-30 

P-29 

P-28 

P-27 

P-26 

P•25 

P-24 

P-23 

P-22 

P-21 

~-20 

P-19 

P-18 

P-17 

P-16 

P-15 

P-14 

P-13 

P-12 

P-11 

P-10 

P- 9 

P- 8 

P- 7 

P- 6 

P- 5 

P- 4 

P- 3 

P- Z 

P- 1 

Cw-6 

Cw-5 

Cw-4 

Cw-3 

Cw..Z 

Cw-1 

Limestone, argillaceous 

Limestone, argillaaeous 

Mudstone, phosphatic 

Limestone, argillaceous 

Phosphate rock, argillaceous, calcareous 

Limestone, phosphatic 

Mudstone 

Phosphate rock, argillaceous, calcareous, 

contains concretions 

Phosphate rock, argillaceous, calcareous 

Limestone, argillaceous 

Limestone, argillaceous 

Phosphate rock, argillaceous 

Phosphate rock, argillaceous 

Phosphate rock, argillaceous 

Limestone 

·Limestone, argillaceous 

Phosphate rock, calcare?us, argillaceous 

Phosphate rock, calcareous, argillaceous 

Limestone, fos. col. no. 47-HW-14 

Mudstone, phosphatic . Phosphate rock 

Mudstone, calcareous, phosphatic 

Mudstone, calcareous, phosphatic 

Limestone, argillaceous 

Limes,one, argillaceous 

Limestone, argillaceous, phosphatic 

Mudstone, phosphatic 

Limestone, argillaceous 

Mudstoae 

Phosphate rock, calcareous 

Limestone, argillaceous 

Mudstone, phosphatic, calcareous 

Limestone, argillaceous, phosphatic: 

fos. col. no. 47-HW-13 

Limestone, cherty 

Chert, calcareous, argillaceous 

Chert, calcareous 

Chert, calcareous 

Limestone, cherty 

Chert, calcareous 

FCA- 8-47 1. 3 1. 6 

FCA- 9-47 1. 15 0,4 

FCA-10-47 0,6 13.4 

FCA-11-47 0.9 1. 3 

FCA-12-47 1. 2 12.4 

FCA-13-47 0.65 9.4 

FCA-14-47 0.6 7. 2 

FCA-21-47 1. 6 19. 5 

FCA-22-47 0,7 14.8 

FCA-23-47 1. 9 1. 0 

FCA-24-47 1. 1 0.6 

FCA-25-47 0;9 14. 1 

FCA-26-47 1. 1 17.5 

FCA-27-47 2.7 14.2 

FCA-28-47 1.4 3. 7 

FCA-30-47 1. 0 7.6 

FCA-31-47 1. 5 15.3 

FCA-32-47 1. 6 17.0 

FCA-33-47 3.6 3.4 

·FCA-34-47 0,75 9.2 

FCA-35-47 1.35 31. 1 

FCA-36-47 2.0 11.7 

FCA-37-47 0.9 10.6 

FCA-38-47 3.4 1. 7 

FCA-39-47 1. 3 o. 3 

FCA-40-47 2. 1 11.0 

FCA-41-47 0.8 12.8 

FCA-42-47 0.75 1. 5 

FCA-43-47 1.1 4. 0 

FCA-44-47 1. 4 30.7 

FCA-45-47 Z.35 0.4 

FCA-46-47 o.ss 1Z. 3 

FCA-47-47 0.35 11.5 

Wells formatiOD 

FCA-48-47 0,8 0.4 

FCA..Z3Z-47 0.7 o.' 

FCA-l31-47 1.6 o.? FC~.30-47 3.6 o .. 7 

FCA..ZZ9-4 7 1.5 o .. a 

-- 0.2 -- -

-- -- -- 33.3 53. 15 410.62 

-- -- -- 33.3 54.30 411.08 

-- -- -- 41.3 54.90 419.12 

-- -- -- 22.3 55.80 420.30 

-- -- -- 32.3 57.00 435,18 

-- -- -- 19.2 57.65 441.28 

-- -- -- 36.3 58.25 445.60 

-- -- -- 17.4 59.85 476.80 

-- -- -- 30.4 60.55 487.16 

-- -- -- 30.8 62.45 489.06 

-- -- -- 24.3 63.55 489.72 

-- -- -- 31.2 64.45 502.41 

-- -- -- 29.9 65.55 521.66 

-- -- -- 32.4 68.25 560.00 

-- -- -- 14.6 69.65 565.18 

-- -- -- 21.2 70.65 572.78 

·- -- -- 26.4 72. 15 595.73 

-- -- -- 23.7 73. 75 622.94 

-- -- -- 11.6 77.35 635.18 

-- -- -- 51.8 78. 10 642.08 

-- -- -- 5. 0 79.45 684.46 

-- -- -- 36.8 81.45 707.46 

-- -- -- 45.3 82.35 717.00 

-- -- -- 36. 1 85,75 721..78 

-- -- _,. 35.0 87.05 723.17 

-- -- -- 30.6 89.15 746.27 

-- -- -- 45.3 89.95 756. 51 

-- -- _._ 47.2 90.70 757.64 

-- ·- -.- 66.6 91.80 762.04 

-- _,.. -- 7. l 93.20 805.oz 

-- -- -- 38.4 95.55 805.96 

-- -- ... 45.0 96.10 81Z.7Z 

-- ... -- 30.Z 96.45 816.74 

-- -- -- ll.O 0.8 -- -- .... -- 7Z.l 1. 5 -- -- ·- -- 54.4 3. 1 -- -- -- ..... 51,.0 6. 7 -- -- -- -- 43.0 a.z -,• 

-- -- -- -- 8.4 --
w 

N 

SPECTROORAPHIC ANALYSES-MIDDLE FORK OF PINE CREEK, WYOMING. LOT NO. lZOS. 

Semi-quantitative analyses of a few samples of the Phosphoria formation, Middle Fork of Pine Creek. Wyoming (see immediately 

preceding pages for location of section, thickness and description of strata, and chemical analyses of samples), made by u.S. Geological 

Survey Laboratory,, Geochemistry and Petrology Branch, Washington, D. C. In addition to the elements listed in the table below, Sb, As, 

Be, Bi, Ce, Cs. Co, Cb, Ge, In, Hg, Mo, Nd, Pt, Re, Rb, Sc, Ta, Tl, Th, and W were looked for in all samples but were not 

detected. 

Bed 

no. 

P-66 

P-65 

P-64 

Explanation of symbols 

Sample no. Al Ba 

LES-35-47 D F 

LES-36-47 D F 

LES-37-47 D F 

A =more than 10 percent 

B' • 1-10 percentl 

D = 0. 1-1 percent 

E • 0. 01-0. 1 percent 

B Cd Ca Cr Cu Fe 

F F A D F D 

F ND A D F D 

ND ND A D F D 

La Pb 

E E 

E E 

E E 

1 B' is equivalent to B and C of Bureau of Mines analyses. 

F = 0. 001-0. 01 percent 

G = less than 0. 001 percent 

ND = not detected 

Mg Mn Ni p Si Ag Na 

D F F A B' G D 

D F F A B' G D 

D F F A B' G D 

Sr Sn Ti v y Zn Zr 

D p E E B P' E 

D F E E E F E 

D F E ND E F E 
loW 

loW 

LEEFE, WYOMING. LOT NO. 1Z13, 

Part of phosphatic shale member of Phosphoria formation sampled at two places in Leefe open pit mine of San Francisco Chemical Company 4 

miles west of Sage, sees. 10 and 15, T. Z1 N., R. 1ZO W., Uinta County, Wyoming. Beds are flat lying. Section of beds P-1 to P-11 from locality A 

measured and sampled by R. M. Campbell in December 1947; section of beds P-1 to P-Z3 from locality B measured by F. W. 0' Malley and R. A. Harris 

and sampled by Harris and R. A. Smart in October 1948. Samples analyzed for l?z.05 and acid insoluble by U. S. Bureau of Mines Laboratory, Albany, 

Oregon, and for other constituents by Trace Elements Section Laboratory, U.S. GeOlogical Survey, Washington, D. C. 

Chemical analyses (percent) Cumulative Thickness x Bed Sample Thickness l I I Loss on I Acta Rock description thickness percent P 0 no •. (feet) P zOs Alz03 Fe203 ignition insoluble (feet) ( cumulatn;e f no. 

Locality A 1 

Phosphatic shale member of Phosphoria formation-partial section 

P-11 Phosphate rock, argillaceous RMC-145-47 2.5 17.4 2. 1 1. 67 9.14 31.6 2.5 43.50 

P-10 Limestone, argillaceous RMC- 144-47 0.7 1. 7 3.6 1.65 28,26 29.2 3.2 44.69 

P- 9 Phosphate rock RMC- 143-47 2.7 35.5 0.66 0.53 3. 50 3. 1 5.9 140.54 

P- 8 Phosphate rock, argillaceoue RMC- 142-47 0.4 26.9 3.4 0,80 3.94 20. 7 6.3 151.30 

P- 7 Phosphate rock RMC- 141-47 1. 0 34.6 0.99 0.61 3. 12 4.2 7.3 185.90 

P- 6 Phosppate rock RMC- 140-47 0.9 32.6 1.2 2. 10 4.00 5.4 8.2 Z15.24 

P- 5 Phosphate rock, argillaceous RMC- 139-47 0.6 20.8 5. 5 1. 00 4.22 33.5 8.8 227.72 

P- 4 Phosphate rock, argillaceous RMC- 138-47 1.4 28.8 2.6 o.82 3.74 14.5 10.2 268.04 

P- 3 Phosphate rock, argillaceous RMC- 137-47 1.2 28.8 z. 9 0.69 3.8Z 18. 3 11.4 30Z.60 

P- Z Phosphate rock, argillaceous RMC- 136-47 0.8 Z4.8 3.6 1. 46 3.80 26.3 12.2 322.44 

P- 1 Phosphate rock, argillaceous RMC- 135-47 0.3 Z3.0 4.8 0.79 Z.84 3Z.7 12.5 329.34 

Locality B 

Phosphatic shale member of Phosphoria formation-upper part only 

P-Z4 Chert I -- 0.03 -- -- -- -- -- -- -- Bed P-Z4 may represent base of Rex member. 

P-Z3 Mudstone, cherty RH-3326 z. 0 3. 5 -- -- -- 83.9 2. 0 7.00 

P-ZZ Phosphate rock, argillaceous RH-33Z5 0.8 Z3.9 -- -- -- 30.9 2.8 26.1Z 

P-Z1 Mudstone RH-33Z4 1.3 z. 9 -- -- -- 79.9 4.1 29.89 

P-zo Phosphate rock, argillaceous RH-3323 0.4 Z8.5 -- -- -- 20.8 4.5 41.29 

P-19 Mudstone WOM - 3322 1. 7 3. 6 -- -- -- 72~4 6.2 47.41 

P-18 Mudstone, phosphatic and cherty 

phosphate rock WOM - 3321 1.0 18.3 -- -- -- 44.2 7.2 65.71 

P-17 Mudstone, phosphatic WOM - 3320 0.4 9. 5 -- -- -- 63.6 7.6 69.51 

P-16 Phosphate rock and mudstone WOM - 3319 0.8 Zl.4 -- -- -- 34.0 8.4 86.63 

P-15 Phosphate _rock WOM - 3318 4.5 35.0 -- -- -- 4.7 12.9 244.13 

P-14 Phosphate rock, calcareous RH-3317 1.4 Z6.7 -- -- -- 2. 0 14.3 281.51 

1 Beds P-1 to P-11 of locality A are probably equivalent to beds P-9 through P-18 of locality B. 

. 
u.l 

~ 

Bed 

no. 

P-13 

P-12 

P-11 

P-10 

P- 9 

P- 8 

P- 7 

P-. 6 

P- 5 

P- 4 

P- 3 

P- 2 

P- 1 

Rock description 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Phosphate rock 

Phosphate rock, argillaceous 

Mudstone 

Phosphate rock 

Phosphate rock 

Phosphate rock, argillaceous 

Phosphate rock, argillaceous 

Phosphate rock 

Mudstone and argillaceous phosphate rock 

Phosphate rock, argillaceous 

Sample 

no. 

RH-3316. 

RH-3315 

WOM - 3314 

WOM - 3313 

WOM - 3312 

WOM - 3311 

WOM - 3310 

WOM - 3309 

WOM - 3308 

WOM - 3307 

WOM - 3306 

WOM - 3305 

WOM - 3335 

----------

Thickness 

(feet) Pz05 

0.8 34. 1 

0.3 35.5 

0.8 27.0 

1. 4 z,a. 5 

0.6 17.7 

2.0 3. 9 

0. 7 29.9 

0,7 34.5 

1. 5 19.5 

1. 0 23.7 

1. 2 28.8 

1. 1 15.6 

1.1 23.9 

- --~ ----

Chemical analyses (percent) Cumulative Thickness :z: 

Al2o3 Fe2o3 

LOSS on Acid thickness percent Pl;,05 ignition insoluble (feet) (cumulat eJ 

-- -- -- 6.2 15. 1 308.79 

-- -- -- 4.6 15.4 319.44 

-- -- -- 19.3 16.2 341.04 

-- -- -- 17.6 17.6 380.94 

-- -- -- 43.2 18.2 391.56 

-- -- -- 76.7 20.2 399.36 

-- -- -- 13.9 20.9 420.29 

-- -- -- 7. 3 21.6 444.44 

-- -- -- 37.3 23.1 473.69 

-- -- -- 28.0 Z4.1 497.39 

-- -- -- 17.6 25.3 531.95 

-- -- -- 47.7 26.4 549.11 

-- -- -- 28. 1 27.5 575.40 

--~-- - -------- ~ --
., 

.. 

0 

w 

Ul 

.. .. 

. 

Cll 

-

Cll 

Cll _,

SPECTR9QRAPHIC ANALYSES-LEEFE, WYOMING. LOT NO. 1Zl3. 

Locality A 

Semi-quantitative analyses of samples of the Phosphoria formation, Leefe, Wyoming (see immediately preceding pages for location of 

section, thickness and description of strata, and chemical analyses of samples), made by the U. S. Geological Survey Laboratory, Geochemistry 

and Petrology Branch. In additiolt to the elements listed in the table below, Sb, As, Be, Bi, B, Ce, Cs, Cb, Ge, Hg, Mo, Nd, Pt, Re, Rb, 

Sc,. Ta, Tl, Th, Sn, and W,. were looked for in all samples but were not detected. 

Bed 

no. 

P-11 

P-10 

P- 9 

P- 8 

P- 7 

P- 6 

P- 5 

P- 4 

P- 3 

P- Z 

P- 1 

Explanation of symbols 

Sample no. Al Ba Cd Ca 

RMC-145-47 B' E ND B' 

RMC-144-47 B' E F A 

RMC-143-47 D E ND A 

RMC-14Z-47 B' E ND A 

RMC-141-47 D E ND A 

RMC-140-47 D E F A 

RMC-139-47 B' E ND B' 

RMC-138-47 B' E F A 

RMC-137-47 B' E F A 

RMC-136-47 B' E F A 

RMC-135-47 B' E ND A 

A • more than 101

percent 

B' • 1-10 percent 

D • 0.1-1 percent 

E • o. 01-0. 1 percent 

Cr Co Cu Ga In Fe 

F ND F F G D 

La 

E 

F ND F F G D ND 

E ND F F ND E E 

E ND F F G D E 

E ND F F G D E 

E F F F G D E 

E F F F G D F 

E F F F G D E 

E F F F G D E 

E F F F ND D E 

E ND F F ND D F 

1 B' is equivalent to Band C of Bureau of Mines analyses • 

F = 0. 001-0. 01 percent 

G • less .than 0. 001 percent 

ND = nQt detected 

Pb Mg Mn Ni p Si Ag 

ND E D E B' A G 

ND E D E D A G 

F E E E A B' G 

F E E E A B' G 

E E D E A B' G 

E E D E A B' G 

E' E D E B' A G 

IE E D E A B' G 

:e: E D E A B' G 

E E E E A A G 

E E D E A A G 

Na Sr Ti v Yb y Zn Zr 

D D E E G E F F 

D E E E G F F E 

D D E D G E F F 

D D E D G E E E 

D D E D G E E F 

D D E D G E E F 

D D E D G E E E 

D D E D G E E E 

D D E D G E E E 

D b E D G E E E 

D D E D G E E E