Field Notebook: IA 1951
Page 19
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Sergents Bluff Quarry, N. well silty gray clay hard ss or siltstone (edge) clay or silty clay siltstone thin clay or silts clay - dark - coaly? siltstone local thin gray devicr than below channel-like cuts light gray locally red mottled gray silty little mottling silty gray to greenish? with red mottling.