GEOLOGICAL SURVEY CIRCULAR 349

RECONNAISSANCE FOR 

URANIUM-BEARING 

CARBONACEOUS MATERIALS 

IN SOUTHERN UTAH

This report concerns work done on 

behalf of the U. S. Atomic Energy 

Commission and is published with 

the permission of the Commission.
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

GEOLOGICAL SURVEY CIRCULAR 349

RECONNAISSANCE FOR URANIUM-BEARING CARBONACEOUS MATERIALS

IN SOUTHERN UTAH

By Howard D. Zeller

This report concerns work done on 

behalf of the U. S. Atomic Energy 

Commission and is published with 

the permission of the Commission.

Washington, D. C., 19&5

Free on application to the Geological Survey, Washington 25, D. C.
Figure 1. Index map of Utah showing areas described in this report. 

Kaiparowits Plateau (1), Henry Mountains (2), and Kolob terrace (3).
RECONNAISSANCE FOR URANIUM-BEARING CARBONACEOUS MATERIALS

IN SOUTHERN UTAH

By Howard D. Zeller

CONTENTS

Abstract.............

Introduction..........

Purpose and 

scope.........

Acknowledgments.

Page

1

1

1

2

Areas examined.........

Kaiparowits Plateau. 

Henry Mountains 

Kolob Terrace area.

Literature cited..........

ILLUSTRATIONS

Page

2

2

2

5

5

Page

Figure 1.

2.

3.

Index map of Utah showing areas described in this report................................... ii

Map of the Kaiparowits area showing localities examined for carbonaceous materials.......... 3

Map of part of the Henry Mountains area showing localities examined for carbonaceous 

materials............................................................................ 4

4. Map of the Kolob Terrace area showing localities examined for carbonaceous

materials............................................................................ 6

TABLE 

Radioactivity measurements and chemical analyses of samples from southern Utah...................... 7

ABSTRACT

A reconnaissance investigation for uraniumbearing carbonaceous materials was made in three 

major areas of southern Utah: Kaiparowits Plateau, 

Henry Mountains, and Kolob Terrace. No uranium 

deposits of economic interest were found. A few 1- 

to 2-foot beds of carbonaceous shale in the Dakota(?) 

sandstone contain 0. 006-0. 007 percent uranium. Other 

carbonaceous sediments that were examined contain 

0.002 percent or less uranium.

INTRODUCTION

During the summer of 1953 a reconnaissance 

investigation was made in parts of southern Utah in 

search of new deposits of uranium-bearing carbonaceous 

rocks. Coal and carbonaceous shale of Cretaceous age 

were systematically sampled in three major areas: 

Kaiparowits Plateau, Henry Mountains, and Kolob Terrace (fig. 1). Eighty samples were submitted for uranium analyses and radioactivity measurements. They 

included 53 samples of coal, 10 of carbonaceous shale, 

10 of volcanic rock, 2 of sandstone, 4 of water, and 

1 of evaporite. The radioactivity measurements and 

chemical analyses of the samples are given in the table.

The samples are not appreciably radioactive nor 

do they contain uranium in amounts of economic importance. The only rocks with a uranium content that 

could be considered above normal for their type of 

lithology were a few thin beds of carbonaceous shale.

Field radioactivity measurements indicated a 

higher equivalent uranium content than was determined 

by the laboratory analyses. This may be due to the 

contamination from fallout, which was very heavy in 

southern Utah during the entire period of investigation. 

Background readings with the field Geiger and scintillation counters were so high at some localities in the 

Kolob Terrace that the instruments could be used only 

in mines or freshly dug pits.

Purpose and scope

This reconnaissance was undertaken in an attempt 

to locate deposits of uranium-bearing carbonaceous 

materials, especially coal, that might be used as byproduct sources of uranium.

The areas in southern Utah were chosen for study 

because they contain bedrock favorable for concentration of uranium and are overlain in part by volcanic and
tuffaceous beds that might be a source of uranium. Coal 

having as much as 0.1 percent uranium in the ash content 

was found during similar reconnaissance in South Dakota, 

North Dakota, Wyoming, Colorado, New Mexico, Nevada, 

Idaho, and Montana (Denson and others, written communication, 1952).

Acknowledgments

The writer was assisted in the field by Don M, George. 

The reconnaissance in western Kane County, Utah, was 

greatly facilitated by W. B. Cashion. Radioactivity measurements and uranium analyses were made by the Geological Survey laboratories in Denver and Washington. The 

work was done on behalf of the Division of Raw Materials of 

the U. S. Atomic Energy Commission.

AREAS EXAMINED 

Kaiparowits Plateau

The Kaiparowits Plateau is located in Garfield and 

Kane Counties, south-central Utah. Escalante, the principal town in the area, located near the northeastern corner 

of the Plateau, canbe reached from Utah State Highway 54 

by way of Tropic. (Seefig. 2.) The plateau area covers 

about 1, 500 square miles, much of which is accessible 

only on foot or horseback. The nearest railhead is Marysvale, about 85 miles by road to the northwest of Escalante.

The plateau is composed of Jurassic and Cretaceous 

rocks thathave beenpreserved from erosion because they 

lie in a shallow syncline that is capped by resistant sandstone (Gregory and Moore, 1931, p. 134).

Generalized section of Cretaceous rocks in the 

Kaiparowits Plateau

[Modified from Gregory and Moore(1931,p. 36)and from Gregory(1951,p. 23)] 

Tertiary: Wasatch formation.

Unconformity.

Cretaceous:

Kaiparowits formationWahweap sandstoneStraight Cliffs sandstoneTropic formationDakota(?) sandstoneBluish-drab fine-grained 

to medium-coarse-grained 

arkosic sandstone and 

sandy shale.

Yellowish-gray massive 

sandstone with some sandy 

shale. Forms conspicuous 

cliffs.

Yellowish-gray to brown 

irregularly bedded medium 

to massive sandstone. 

Contains coal "beds. Forms 

conspicuous escarpment.

Bluish-drab argillaceous 

to sandy shale. Fossiliferous sandstone at 

base contains Gryphaea 

newberryi.

Yellow to nearly white 

sandstone, conglomeratic 

in part. Irregularly 

bedded. Contains thin 

beds of coal.

Unconformity.

Jurassic: Morrison formation or Winsor formation.

Carbonaceous rocks that contain more than 

0. 002 percent uranium were found only at two localities, 

one on the northwest flank of the East Kaibab monocline 

(locality 28, fig. 2), and the other near Collet Creek 

on the northeast edge of the Kaiparowits Plateau (locality 20, fig. 2). The uranium content at these localities 

is 0. 006 to 0. 007 percent, and the uranium occurs in 

beds of carbonaceous shale 1 to 2 feet thick in the 

Dakota(?) sandstone. The carbonaceous shale at locality 28 is 2 feet thick and lies 15 feet above the unconformity between the Dakota(?) sandstone and the Winsor 

formation.

Other localities where carbonaceous rocks contain as much as 0. 002 percent equivalent uranium were 

locality 14, in natural coal ash in the Dakota(?) sandstone; locality 24, in carbonaceous shale of the Dakota( ?) 

sandstone; and locality 29, in carbonaceous shale of the 

Straight Cliffs sandstone. (See fig. 2.)

Samples of carbonaceous material from localities 9, 

16, 21, 25, and 27 (fig. 2) contained 0.001 percent 

equivalent uranium.

A bed of ferruginous sandstone in the Dakota( ?) 

sandstone at locality 11 contains 0. 002 percent equivalent uranium and 0. 0017 percent uranium. A 2-foot 

bed of bentonite at locality 31 near Cannonville at the 

base of the Dakota(?) sandstone contains 0.001 percent equivalent uranium and 0. 0007 percent uranium. 

(See fig. 2.)

Several samples of volcanic flow rocks of Tertiary 

age collected on the nearby Aquarius Plateau show relatively high contents of equivalent uranium. A porphyritic flow rock at locality 3 at the head of Coyote Creek 

near Antimony contains 0. 0054 percent equivalent uranium and 0.0009 percent uranium. Another sample, . 

from locality 5 on Escalante Mountain, contains 

0. 006 percent equivalent uranium and 0. 001 percenturanium. A third sample, from locality 4 near Cyclone Lake, 

contains 0.003 percent equivalent uranium but only 

0. 0005 percent uranium. (See fig. 2.)

A field radiometric survey was made of some 

beds of limestone in the Wasatch formation along the 

edge of the Aquarius Plateau (fig. 2), but no radioactivity anomalies were found.

Samples from the other localities examined 

in the Kaiparowits Plateau area contain less 

than 0.001 percent equivalent uranium. (See table, 

p. 7.)

Henry Mountains

The Henry Mountains area is located in 

Wayne and Garfield Counties, southeastern Utah. 

Reconnaissance work was restricted to the northern part of the Henry Mountains from the west 

flank of Mount Ellen northward to the boundary 

between Emery and Wayne Counties (fig. 1). 

The town of Hanksville is located near the northeastern corner of the area. Green River, Utah, 

the nearest railhead, is 60 miles to the northeast on Utah State Highway 24.

The geologic map (fig. 3) was taken from the 

northern part of a map by Hunt and others (1952).
EXPLANATION

R.2W. R.1W.

Outcrop of Dakota (?)sandstone

x 

Locality examined

 21

Locality examined, 

sample taken

R 5E.

ARIZONA

5 0

I i I i i I

15 Miles

I

Figure 2. Map of the Kaiparowits area showing localities examined for carbonaceous materials.

3
R,9 E.

EMERY 

WAYNE

R. 10 E. R.ll E.

Emery sandstone member

Blue Gate shale member

Perron sandstone member

Modified affer C.B.Hunt

U.S.Geological Survey Oil and Gas map7 OM 131

I i i i i I i

Dakota sandstone 

Older formations not differentiated

Locality examined

 36 

Locality examined, sample taken

10 Miles 

i ' '

Figure 3. Map of part of the Henry Mountains area showing localities examined for carbonaceous materials.

4
It shows localities that were examined and sampled 

during one week of reconnaissance work. Coal 

beds in the Henry Mountains area occur in the 

Dakota sandstone, the upper part of the Ferron 

sandstone member of the Mancos shale, and 

the upper part of the Emery sandstone member 

of the Mancos. Additional information on the 

geology of the area is given by Hunt (1946) 

and Hunt and others (1954).

The carbonaceous material examined contained less 

than 0. 002 percent equivalent uranium. Carbonaceous 

clay shale in the Ferron sandstone member at locality 36 

(fig. 3) near Caineville indicated an estimated 0. 01 percent 

equivalent-uranium content after careful field Geiger 

counter readings, but laboratory analyses showed only 

0.002 percent equivalent uranium.

Abed of coal 8 inches thick in the Ferron sandstone 

member at locality 35 contains 0. 001 percent equivalent 

uranium. This bed, like the one at locality 36, indicated 

a higher equivalent-uranium content in the field than in 

the laboratory. It is at about the same stratigraphic position as the bed at the Factory Butte coal mine (locality 33, 

fig. 3). The coal at the mine is 7 feet thick but contains less 

thanO. 001 percent equivalent uranium.

All of the coal beds examined in the Emery sandstone 

member contain less than 0. 001 percent equivalent uranium. (See table, p. 7.) These beds occur only in the 

deepest part of the Henry Mountains structural basin west 

of Mount Ellen and Mount Pennell (Hunt and others, 1954).

Kolob Terrace area

The Kolob Terrace area is located in parts of Kane, 

Washington, Garfield, and Iron Counties in southwestern 

Utah (fig. 1). Cedar City, near the northwest corner of the 

area, is the main railhead. Numerous secondary country 

roads give access to most of the region, but deep, narrow 

canyons tributary to Virgin River make traversing difficult.

The Kolob Terrace, a bench cut on the south flank of 

the Markagunt Plateau, extends from Coal Creek Canyon 

near Cedar City southward and southeastward to the vicinity 

of Glendale, Utah (fig. 4) lyingbetween the Hurricane fault 

on the west and the Sevier fault on the east (Gregory, 1950a, 

p. 5-6). The terrace ranges in altitude from 8, 000 to 

9, 000 feet and consists of rounded hills, swales, and gentle 

slopes. Recent volcanic cones and lava flows lie on the surface at many places (Gregory, 1950b, p. 134-136).

The main coal beds in this area occur in the Upper 

Cretaceous Tropic formation (Gregory, 1950b, p. 146). 

Some layers of carbonaceous rock also occur in the 

Dakota( ?) sandstone and in the Straight Cliffs sandstone 

of Cretaceous age.

Beroni and others (1953) describe an occurrence 

of uranium in the lower part of the Dakota sandstone and 

upper part of the Summerville formation at the Bullock 

claims in T. 40 S., R. 9W., Kane County, Utah. Fragments of carbonized wood and clay that occur in a conglomeratic sandstone were found to contain finely disseminated 

uranium compounds. This zone, near the CretaceousJurassic contact, was examined at many places during 

the reconnaissance, but no radioactivity was detected.

The only sample collected in the area that contains 

more than 0.001 percent uranium is coal ash on the waste 

dump of the Southern Utah Power Company plant near 

Cedar City, Utah (locality 60, fig. 4). The ash contains 

0.004 percent equivalent uranium and 0. 002 percent uranium. The ash came from three nearby mines in the Tropic 

formation; about 100 tons of coal, averaging about 12 percent ash, are mined in a day. One of these mines (the 

Webster, locality 55, in Right Hand Canyon) penetrates 

a 6-foot coal bed. The radioactivity detected in the mine 

was twice background, but samples collected from the mine 

contain only 0. 001 percent equivalent uranium or less.- 

Samples of coal from the other mines (localities 54 and 57, 

fig. 4) contain less than 0. 001 percent equivalent uranium.

Near New Harmony, Utah, at locality 61 (fig. 4) a 

1 -foot bed of semianthracite coal in the Tropic formation 

lies adjacent to an intrusion of andesite (Richardson, 1909, 

p. 384) and contains 0. 004 percent equivalent uranium and 

0. 0012 percent uranium. The andesite contains 0. 003 percent equivalent uranium but only 0. 0003 percent uranium.

A 6-inch bed of carbonaceous shale (locality 52, 

fig. 4) in the Tropic formation near Pryor Peak on 

Kolob Terrace contains 0. 003 percent equivalent uranium but only 0. 0003 percent uranium.

Samples of coal at localities 43, 44, 46, 51, 55, 

56, and 58 (fig. 4 and table) contain 0.001 percent 

equivalent uranium.

A rhyolitic lava at the top of the Brian Head formation 

of Miocene(?) age (Gregory, 1950b, p. 26) was sampled on 

Markagunt Plateau to determine whether uranium might be 

present in volcanic rocks on the plateau. The sample contains 0. 003 percent equivalent uranium and 0. 001 percent 

uranium.

LITERATURE CITED

Beroni, E. P., McKeown, F. A., Stugard, F., Jr.,

and Gott, G. B., 1953, Uranium deposits of the

Bulloch group of claims, Kane County, Utah:

U. S. Geol. Survey Circ. 239. 

Gregory, H. E., 1951, The geology and geography of

the Paunsaugunt region, Utah: U. S. Geol. Survey

Prof. Paper 226, 116 p. 

_______1950a, Geology and geography of the Zion

Park region, Utah and Arizona: U. S. Geol. Survey

Prof. Paper 220, 200 p. 

______1950b, Geology of eastern Iron County, Utah:

Utah Geol. and Mineralog. Survey Bull. 37, 153 p. 

Gregory, H. E., and Moore, R. C., 1931, The

Kaiparowits region: U. S. Geol. Survey Prof.

Paper 164, 161 p. 

Hunt, C. B., 1946, Guidebook to the geology and

geography of the Henry Mountains region, Utah:

Utah Geol. Soc. Guidebook no. 1, 51 p. 

Hunt, C. B., and others, 1952, Geologic map of the

Henry Mountains region, Utah: U. S. Geol. Survey

Oil and Gas Inv. Map OM 131. 

_______1954, Geology and geography of the Henry

Mountains region, Utah: U. S. Geol. Survey Prof.

Paper 228, 234 p. 

Richardson, G. B., 1909, The Harmony, Colob, and

Kanab coal fields, southern Utah: U. S. Geol. Survey

Bull. 341, p. 384-386.
EXPLANATION

Locality examined

.57

Locality examined, 

sample taken

Approximate contact between 

Cretaceous and Jurassic 

formations

NAT IOTNA D / 

s

GA&FIE

R. 10 W. 9Vi

.9 W. / _R.8'W. R. 7 W. R. 6 W. R. 5 W.

Base tnodiflad -from U.S.Forest Service 

map of Dixie National Forest

0 

. I

15 Miles

Figure 4. Map of the Kolob Terrace area showing localities examined for carbonaceous materials.
Radioactivity measurements and chemical analyses, in percent, of samples from southern Ut

[Laboratory serial no.: D, analysis made in Denver lab. Equivalent uranium: a, less than 0.001 percent. Analyses by S. Furman, W. Mountjoy, E. Camp

Map

locality

no.

Laboratory

serial

no.

Sectiontownship -

range

County

Equivalent

uranium

Uranium Ash Material 

Kaiparowlts Plateau area

1

2 

3

k 

5 

6

7

7 

8

9 

10 

11 

12

13 

Ik

15 

16 

16 

16 

17

18 

19

19 

20 

20

21 

22 

22 

23

21* 

25 

26

27 

28

28 

28

D-98328

0-9831*6 

D-98329 

D-95980 

D-95977 

111*298

111*302

111*303 

111*301

111*328 

111*316 

D-95979 

111*311

111*299 

111*300 

D-95975 

11^305 

111*306 

111*307 

111*308

111*301* 

111*320

111*321 

111*322 

1114-323

1114-312 

1114-326 

1114-327 

1114-325 

111*321* 

1114-319 

1114-318 

1114-317 

1114-313

111*311* 

111*315

214--31S-1W

23-31S-1W 

23-31S-1W 

31-32S-2E

11- 314-3 -iw

14--35S-1E 

8-35S-1E

8-35S-1E 

9-35S-1E

27-33S-2E 

314--33S-2E 

13-35S-2E 

13-35S-2E

214--35S-2E 

214--35S-2E 

25-35S-2E 

3-36S-2E 

3-36S-2E 

3-36S-2E 

2-36S-2E

10-36S-2E 

3-36S -IE

3-36S-1E 

35-37S-^E 

35-37S-14-E

19-38S-14-E 

36-14-1S-3E 

36-14-1S-3E 

P9_l4-2S-l*E

?9-l4-2S-l4-E

8-39S-1E 

5-39S-1E 

5-39S-1E 

6-39S-1E

6-39S-1E 

6-39S-1E

Gar field 

. do 

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. do - -

. do 

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. do 

 do 

. do 

. do 

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. do 

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. do 

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. do 

. do 

. do 

. do 

-- do 

. do 

. do 

. do 

. do 

. do 

. do 

. do 

. do 

0.0008

.005*4- 

.003 

.006 

(a)

(a)

(a) 

(a)

.001 

(a) 

.002 

(a)

(a)

.002

.015

.001 

(a) 

(a) 

(a)

(a) 

(a)

(a)

.005 

.002

.001 

(a) 

(a) 

(a) 

.002 

.001 

(a) 

.001 

.003

.007 

.002

0.0002

<lxlO"7 

.0009 

.0005 

.0010

.0017

.0002 

.0005

.007

~"

.002 

.006

^9-9

83.6

White volcanic tuff interbedded with 

slope of Aquarius Plateau. 

Water sample from spring issuing fro

Tertiary volcanic flow rock at head 

Tertiary volcanic flow rock near Cyc

Tertiary volcanic flow rock on Aquar

Upper 3 feet of a 12-foot coal bed i

abandoned mine on Birch Creek. 

12-foot coal bed at the Frandsen coa

stone on upper Cherry Creek. 

1-foot coal rider bed 3 feet above t

Upper 3.2 feet of a 6. i- foot coal be

sandstone . 

2-foot coal bed near base of Tropic 

6-inch coal bed near base of Tropic 

Ferruginous sandstone near base of D

1-foot coal bed in the Dakota(?) san

Morrison formation. 

2-foot coal bed in Dakota(?) sandsto

Natural ash from same horizon as the 

White evaporite in Alvey Wash. 

2-inch coal bed in the Straight Clif

6-inch coal bed 9 feet below bed fro

2.5-foot coal bed 10.7 feet below be

11-foot coal bed in the Straight Cli

Christensen mine. 

Grab sample from 8-foot coal bed in 

abandoned mine. 

Upper 2.7 feet of a 5.1*-foot coal be

Upper Potato Valley. 

Lower 2.7 feet of the 5.1*-foot coal 

Upper 1 foot of a 2-foot bed of carb

3-foot bed of carbonaceous shale at 

300 feet west. 

5-foot bed of weathered coal in the 

2-inch coal rider in the Straight Cl

3-foot coal bed 1 foot below rider f

8- inch coal bed in the Dakota(?) san

1-foot bed of carbonaceous shale in 

Upper 1 foot of a 10-foot coal bed i

6-foot coal bed in the Straight Clif

l*-foot bed of carbonaceous shale in 

2-foot bed of carbonaceous shale in 

above the top of the Winsor format

1-foot bed of carbonaceous shale 2 f

111*313 was taken. 

Lower 1 foot of a 2-foot bed of impu

ically above the shale from which 
Radioactivity measurements and chemical analyses, in percent, of samples from southern Utah Co

Map 

locality 

no.

Latoratory 

serial 

no.

Sectiontownship - 

range

County

Equivalent 

uranium

Uranium Ash Materia

Kaiparowits Plateau area Continued

29 

29

50

31 

52

114J29 

114330

114309

D-95978 

114310

8-57S-1W 

8-57S-1W

15-57S-2W

15-57S-5W 

12-57S-5W

. do 

. do 

. do 

. do 

0.002 

(a)

(a)

.001 

(a)

0.0007

8- inch ted of carbonaceous shale in t

3-foot ted of carbonaceous shale 40 f

114329 was taken. 

4.2-foot coal ted near the contact of 

sandstone . 

Bentonite, 2 feet thick, at tase of D

1.7-foot coal ted in Dakota(?) sandst

Henry Mountains area

55 

55

54 

55 

56 

56

57 

58 

59

4o

D-95985 

D-95984

D-95985 

0-95986 

D-95987 

D- 95988

0-95981 

D-95989 

D-95990

0-95991

11-27S -9E 

11-27S-9E

24-273 -9E 

24-28S-9E

3-29S-8E 

3-29S-8E

11-51S-9E 

21-51S-9E

17-51S-9E 

50-51S-9E

. do 

. do 

. do 

. do 

. do 

Garfield 

. do 

----do- 

. do 

(a) 

(a)

0.001 

.001 

.002 

.001

.001 

(a) 

(a)

(a)

0.0001

9.8 

14.8

79.0 

18.1

45.5

1.9 

46.0

56.4

Upper 5-5 feet of the 7-foot Factory 

member of the Mancos shale. 

Lower 5.5 feet of the Factory Butte c

was taken. 

6- inch layer of natural ash from the 

8-inch coal ted in Ferron sandstone m

2-foot ted of cartonaceous shale in F

1-foot coal ted 20 feet stratigraphic

D-95987 was taken. 

Volcanic laccolithic rock on west fla

2.5-foot coal ted in Emery sandstone 

Upper 8 feet of a l4-foot coal bed in 

member . 

Upper 2 feet of a 7-foot coal ted in 

mine.

Kolot Terrace and vicinity

4i

42 

^5

44

45 

46 

47 

48 

49 

50

51

52 

55

54 

55

55

0-95995 

0-95994 

0-96000

0-95996 

0-95999 

0-95997 

0-95998 

0-98525 

0-98343 

0-98334

0-98340

0-98556 

0-98557 

0-96005 

0-96002

0-96005

13-40S-7W 

23-40S-7W 

21-41S-7W

32-403 -8W

28-40S-9W

10-403 -9W 

3-40S-9W 

32-38S-10W 

35-57S-11W 

33-573-iltt

28-373-nw

20-37S-10W 

24-37S-11W 

5-37S-10W 

5-37S-10W

5-573-iow

 do 

 do 

 do 

 do 

 do 

 do 

Washington -

 do 

 do 

 do 

. do 

 do 

 do 

 do 

(a) 

(a) 

0.001

.001 

(a) 

.001 

(a) 

.0016

(a) 

.001

.005 

(a) 

(a) 

(a)

.001

0.0002 

5x10- 7

.0003

21.9 

4.6 

25.8

8.9 

10.9

52.5

8.1

17.0 

21.9

7.4

Upper 1 foot of a 5-foot coal ted in 

Upper 2 feet of a 5 -foot coal ted in 

5 -foot coal ted in a slump tlock of T

fault. 

5 -foot upper coal ted in Tropic forma

5-foot lower coal ted in Tropic forma

Stringers of coal atove lower coal te

4-foot upper coal ted in Tropic forma

Volcanic cinder near an old volcano o

Water from spring issuing from atando

Upper 2 feet of a 10-foot coal ted in 

near Graff Point. 

Upper 1 foot of a 14-foot coal ted at 

Tropic formation. 

6-inch ted of cartonaceous shale in T

Coal dump at Burns Coal Co. mine on S

Coal dump at Tucker mine in Tropic fo

6-foot ted of coal and shale from Wet

Right Hand Canyon. 

Grat sample of commercial coal from W
56

57

58

59

60

61

61

61

62

62

63 

6^ 

65

D-98338 

 D-96001

D-98339

D-98335 

D-960014-

D-96006

D-95982 

D-983M4-

D- 983^5

0-98326 

D-98327 

D-98331

1-37S-10W 

36-368-low

36-363-iiw

30-36S-10W

13-368-iiw

30-37S-13W 

30-37S-13W 

30-37S-13W 

13-36S-9W

13-36S-9W

12-36S-9W

20-35S-8W

5-33S-5W

 do -

 -do ----

 do 

 do 

 do --

 do 

 do --

 do 

..do -

--do-

--do-

--do-

--do-

(a)

.001

.001

(a)

.001

.ocfc 

.003

.0030

.QOOk 

.0019

.002

.0012

.0003

3x10"f

IxlO"7

.0010- 

.0003- 

.0002

7.7

89.7

U-inch bed of coal in Straight Cliffs s

Grab sample of commercial coal in Tropi

Canyon.

Upper 1 foot of an 8-foot "bed of impure 

formation.

Coal dump at abandoned and caved mine.

Grab sample of ash from coal of three m

ern Utah Power Company plant in Coal 

Impure coal on dump of mine in Tropic f

1-foot coal "bed in abandoned mine in Tr

Grab sample of igneous intrusive rock (

Water sample from spring issuing from t

Miocene(?) age.

Water sample from a larger spring highe

which sample D-983^ was taken.

Grab sample of rhyolitic lava on Brian 

White volcanic tuff near Yankee Reservo

Greenish-white tuffaceous sandstone.