Field Notebook: CO 1951c
Page 73
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Holmer bogloch section #1 Taken up from near base of m-> lowest massive ss<outfrom foot of first ridge N gap. Other beds in gap not measured in. Obscured- 3.5 to? Sandstone, fine grained, massive, weatheres Fe brown, pitted + irreg. 11.0 Obscured, with patches lite grey weath. shzle + sandy shzle interbeds fine ss+ siltstone. Grades into unit above. 25.0+ Sandstone, fine grained, some medium qr near top. Massive platy to x lam. weaths qrzy with Fe[illegible] nobs + irreg ridges. Capped by Fe brown crust of ripple mudcracks ± .8 between crests, 5.0+ Silty to sandy lite grey weath shzle and shaly siltstone. 5.9+ Platy fine grained ss and interbedded siltstone. Lite grey weath, siltst has Fe brown bumps + platoy layers, > Locally shzly or clay zone in here but overlying unit cuts it out, + is loci deposited in channels that cut into 59 above. Measurement below taken where disconut at Besc channel rests on top of 5/9 interval Disconut. 38