Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
451 to 453-3
451 to 452-3 Dark gray fragmental claystone and silty, somewhat clay.
452-3 to 453-3 Fragmental claystone,
hard clay, pyritic, chiefly
few large frags light
gray in dk matrix.