UNITED STATES DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY BULLETIN 1030 PLATE 16

110° 109°

FREMONT

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DECLINATION 1980
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| ALS WNs-20(8:28)0.004 a 1 S Lo Sot
f (psu, sitstone, claystone and sandstone) SS 7 a)
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TN SL pwW-85(5:264) 0.44... yer
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= = = f Tw
(—aerae ems = ;
Fang layne = zi = — i
_=———— : — — |

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: ‘ = a
. —
Ze Green =
‘Sandstone: Shale

UCM
seems:

a Sandstone !
: Shale
_——e secon

{Sandstone —f at

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gs YING “1415: 19)0.012. a x

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/f— Sana sale and sandstone =

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= = = \
rs ‘f
Ve = \ Twa

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IS=1(S:1)0.010 f i

-WNS-1(5:12)0.014

Uncontrolled planimetric base compiled from aerial photographs erat 7
by the Topographic Division, U S Geological Survey ;eology by D. G. Wyant and W. N. Sharp, 1949-50
RECONNAISSANCE GEOLOGY OF PART OF THE RED DESERT, GREAT DIVIDE BASIN, SWEETWATER COUNTY, WYOMING
5 Miles
L 4 1 1 1 J

EXPLANATION

Fae

Bolian sand

Lake deposit

Qpd

Former delta and (or)
alluvial fan

Qpt

Stream-terrace deposits

Includes Recent alluvium and terrace sand,

‘silt, clay, and gravel of several ages

Chadron formation
As used by Nace, 1939

AS,

Green River formation
Lacustrine shale and interbedded
sandstone, Ty; lacustrine gray

to brown papery or platy shale
dnd interbedded cla limestone,

Formations of Eocene age undifferentiated
Includes facies of the Wasatch, Green
‘River, and Bridger formations, and
the Continental Peak formation of
Nace (1939). Conspiowous bede of
different lithology are shown locally

tw

Wasatch and Green River formations
undifferentiated
In part overlain by Pleistocene and
Recent alluvial, colluvial, and

eolian deposits. Conspicuous
beds of diferent Kthology are
shown locally

Radioactive-lignite and carbonaceous-
shale beds of the Wasatch formaation
Includes ash and clinker; thickness
shown where known

Contact
Dashed where approwimately located

Inferred contact
Photé-interpretation

465-90

Fault
Showing dip; u, wpthrown side;
0, downthrown side

Probable fault
Photo-interpretation

rfp?
Probable syncline
Showing trace of awial plane,
photo-interpretation

Strike and dip of beds

a

Strike and dip of beds
Photo-interpretation

Lip

Dry-lake bed or playa

Oil or gas well

Shothole for seismic survey

Dw-102 (S:294) 0,004
°

‘Type of material sampled

Locality number, (sample number),
percent equivalent uranium

‘TYPES OF MATERIAL SAMPLED

.
Lignite and carbonaceous shale

a
Clinker and ash

+
Water

Claystone and other materials

R 0.001
Approximate pereent equivalent
‘uranium

Estimated from field and
laboratory deterininations

xr
x JBR1

Fossiliferous zone
‘See table 2

\ set 8

Location of measured section
shown on plate 18 and de-
seribed in text

QUATERNARY

TERTIARY