Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Perry Park - stream cut 200 + s of
150 under Dakota hogback
This is weathered on sou Face - hard to tel
7.6 Silty clay shale, weathered, Fe stained
thin beds 1.7 and 2.8 above base. lower ssilt upper?
may be thin bent.
n4 siltstone and fine grained SS, waxyly food
brown
2.2 as below
7.3 silty gray clay thin lzycas silt, dk
gray with fish scales near base.
a2 Bentonite (Sample 1)
4.0 Silty clay with silt laminae, some
thin beds siltstone