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Contributed by Yale Peabody Museum of Natural History.
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Transcription
A. Powell
C. Hutton
9218 SE of Brownie Butte ON S line of
sec 31, T 21N, R. 37E, 345m from
SE corner, GARFIELD COUNTY, MONT.
Trumbo Branch 7'1/2" Quid
2 coal just at contact
of TULLOCK & Hell Cr, Fms.
2'1/2" thick upper 2
+ so called crazy layer
of blobs of clay about
4-2 mm in diameter.
light grey
Lower 2 variable but ferg
diparitic?
219.
CHX Stringers
lig
usually a bentonite in
upper part of lign.
Crazy Layer ABOVE Bentonite
Upper 2 Thicker than 2
extensive coal rather than
cab shs. 2 or more Bentonite
see fig p below for descr
of fossil pld loc.
"Upper 2" here turns out not to be
same bcoal as has Pyroclastic
unit at Yerbekmo section but one
lignite below it.