Field Notebook: CO, UT 1949
Page 23
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
+ silty shale, brown streak swo or two 32 tilty gray shale with intercalated layers of platy millstone, 1" beakrite or rusty zone at top. Sample # 493 B-10 51 Gray shale + silty shale Sample 493B-11 41 to 6 Beaknite 3'± Siltstone ledge, platy, little inter. shale fragments of fossil, oyster & inoceramus.