Field Notebook: WY 1955a
Page 45
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
This belongs bottom of page 20. worked Fe impreg, silty zones, Much worm tracking + working, Interval characterized by interbeds of pink + light gray clayey silt, 3.4. Interbedded grey shale and Siltstone, Latter as separate thin beds + also interlim with shale. 0.6 Ledge of sideritic festone weatheres purple brn + bru. 0.7 Sandstone, fine, gr, white in thin beds with interbeds gray shale. 8.0 Shaley, gray, silty, weatheres brownish with scattered thin interbeds siltstone, Upper 2.0 is saltier with many siltst. + fine ss interbeds. 5 to 12 feet (locally 12 ft.) Sandstone, chiefly massive, frizzble some thinly bedded, local platy, silty or sandy sh zones in lower part with some Festone slabby layers, Above this nothing can get fresh surface 22