Green River Formation Lithology and Oil Shale Correlations in the Piceance Creek Basin, Colorado Page: 5
iii, 14 p. : ill., maps ; 26 cm.View a full description of this report.
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Sandstone
Siltstone
Mudstone
Shale, including some
oil shales
Shaly marlstone
Marlstone, including
some oil shales
Limestone, > 0.3 ft
Dolomite,> 0.3 ft
. . .
... .-T..x.
r~
. ,I
..--
-1 -
1 r
- I
E
Oolites
> 0. 3 ft
Tuff
T 0.1-0.3 ft
Nahcolite nodules,
stringers and crystals
Nahcolite beds
Halite
Vugs
Collapse breccia
No sample,> 1.0 ft
O O0
o o
4 1
O O
~Ol
B Broken core X X-ray mineral sample
C Contorted bedding ? Questionable feature
F Natural fractures
Figure 2.-Legend of symbols appearing on lithologic logs.
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Trudell, Laurence G.; Beard, Thomas N. & Smith, John Ward. Green River Formation Lithology and Oil Shale Correlations in the Piceance Creek Basin, Colorado, report, 1970; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc38716/m1/11/: accessed June 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.