Field Notebook: CO 1951a
Page 51
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Recorded Turkey Creek section -- and st. From top 1st massive SS, East old Mine entry. A) 32.6 Sandstone massive cross laminated fine-grained buff to Fe brown lichen- covered. Cliff former. 40.0 to 41.0 Sandstone, some shaly ss, softer than beds above + below, forms break in massive cliff 39.8 Sandstone, fine grained, cross laminated weathers buff + Fe brown lichenous. Cliff form Discont. 13.6 Siltstone, augillaceous, dark gray, hard weathers gray, light gray + Fe stained, with exfoliation locally. Fracture coach to subcoach whole is bedded, loc. laminated, bedding obscure. Preportion silt to clay varies but silt consistently higher. May be some fine ss locally. 6.0 Siltstone, hard ledge of gray siltstone recd. carb frags, Two thick beds (upper 11.2) sparated by thin bedded augill. Siltstone with 1.2 of dark gray hard silty sh at base. Base of mine entry B) About 150' up slope along strike. 6.0+ Siltstone as above, weathers orange-brown. 11.6 Interbedded siltstone and shaley siltstone, minor silty shale. Siltst has locelle laminize (X-12m) fine SS.. .2 bed sltgy grey sh 6.0 from top. 41.4 Asabove, - mostly covered/ed approx meas. 51.2 " " slope wash. May be local shaley beds on about but if so thin. 23