Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
Mossey draw -> Deer Creek hogback (cont. from p. 14)
7.)
Clay bed in here, thin, peels off rim about as shown
in A.P.
8*)
Middle Dakota clay - double bed, see Deer Creek section
for measurement & samples
9*)
Base of SS above the 3 little clays over main
bed
10*)
Main clay bed on top 1st ss
11)
Main clay thins - almost pinches out up from
(10) to here, basal quartz small softstone
+ silica clay coming, may be the 'split'
doubtful. Bentonite present where
pinch starts near 10, not further up.
Across to SE can be seen that SS under
mid Dakota clay takes in lower split
of that clay bed up dip. All clays
appear to thin abruptly up dip
from Deer Cr. #1 section.
12)
Thick red-br. wash channel ss in here. It
is either - 1) from well up in Dakota over
mid. clay and cutting out clay, or
lower Dzk SS thickened - check
13)
Main bed in here 2nd about 5' t thick. It
thins to N on S.
14)
Top Dakota sandstone, [illegible] Dakota clay under it,
then relatively thin ss between clay and
the 3 small clay beds
15)
Main bed, at least 5' thick in this swale
area - At base good clay with fossil
[6593]
* See Deer Creek #1 for details & samples of these
exposures.
28