Field Notebook: 1963a
Page 64
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
7-15-2 24 - More silt. Small Gyp x/5. 27 - A clayey siltstone des. as above - small Gypals on surface. 30 - Darker grey siltstone orange mottling still pres not quite as pronounced gypsum Turns into a black siltstorn Last 6 inches - Gradually Carbonized plant remains about 1/2" on contact between this unit & one above. 32.5 -> Top of section taken same as 7-16-1