Field Notebook: WY 1955a
Page 9
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Government Guyon Section. Part 1. From base cylte ss down into red clzystones Base cylte ss 3.4 Clzystone, light greenish gray, bentonitic in upper foot, grades downward thru yellowish tan clystone to light graygreen clystone with red mottling. 9.0 Clzystone, hard red, becoming silty downward. Hue changes from average- or brick-red to deep red. 20.0 Clzystone, silty, red, grading to clayey siltstone, purplish red below. Locally at top are lenticular bodies of white porcellanita up to 1.0 long 0.4 high. Beszl 4' brownish, clayey siltstone with slicked surfaces. Some non calc. nodules 4