Field Notebook: SD 1940
Page 44
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
31 upper 4 feet goes to a more greenish grey sand. (4+5) 11'2" greenish-grey-buff sand (6) 5'7" very greenish sand - goes back to buff friable sand at top. (7,8,9,10,11) 27'11" light buff more or less massive sand. (12+13) 11'2" light buff sand at base becoming grey + bedded with shale partings. some crossbedding evident; upper part well bedded grey-buff sandstone, fairly well inclined. (14) 5'7" thick bedded hard grey sandstone comes in in upper 3' bearing Halymenites mayos rather sharp break from grey buff bedded sandstone in