Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
2) 3.6 Shale, chiefly obscured, float
black, fissile.
1) 8.0 Siltstone, tabular to irreg bedded
locally clayey, hard, weaths
blue-gray, some layers brown
weath. ss., and some shale
partings.
Sandstone.
18