Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
7-1-1
Th.
27.5'
7.6'
to
21.6''
10.6'
to
20
26.
A dark grey unit
beginning above
the clay with a
layer of coals.
+ lignified wood
frag.
lignified wood
becoming scarcer
in first 1 foot.
Scattered marcasite
nodules.
Unit begins as a
silty clay in first
2', then a
silty fine grained
sand - (dark grey)
Ca
Some shale stringers
top 1 feet
Becomes finer grained
and more clayey
toward top.
Finally a sider R
grey SILY clay