Field Notebook: SD, ND 1959
Page 103
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Loc. 65 Section measured and sampled by Mello and Redinsky. Measuring up from 4.0 above creek level (1) 10.0 Shale, light gray + fissile on weathering, dark gray, slightly calcaceous fresh, very little silt. At base 0.2 to 0.3 layer clc. light- grey, hard silt. A 9.0 scattered small white-weather. dark ls. cones. At top 0.4 white-weather. bentonitic shale, potssible "show" bentonite at 8.5,