Field Notebook: CO 1952d
Page 69
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
but ss silt contact is sharp. Lower 1.8 platy to shaly, T 2.4 Siltstone, massive, light gray weather, but fresh is brn-gray. showing fine plant frays, carser below, where rush-like prints common. Grades to interval below. U. 1.1 Liquitic silty clay with local bentonitic zone [Sample 8] in middle (up to 0.2) V 0.2 Silty gray bentonite [Sample 7] W 1.9 Silty brownish gray shaly clay with carb plant frags. X 1.2 Finer SS + siltstay massive loc. porous carb frags through] Slump obscures below this. 34