Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
39
2.6 (Concretionary?) layers silty, claystone
light gray to dk green, in 2
ledges with bentonite between.
upper ledge 1.0 then clay with
bentonite, then lower claystone
1't.
38
3.2 Claystone, bentonitic becoming
dk gray + shaly below with
hzrd light gray clstu wt bszd 0.6
37
3.0 Drzb to blkck shzle.
36
3.0+ concretionary brown wtth aph. ls
with black to gray chest.
35
7.5 Claystone shaly to shzle, silty,
cluzb, local yellowish stain,
zll wtth light gray
34
4.7 Claystone, silky, black grading
to gray downward.
33
3.6 Claystone, olive clzh, silky, becoming
progressively siltier to base where
highly silty, blocky to shzly
32
0.6 Bentonite, about 0.5 silt
below it in addition