Field Notebook: SD, ND 1962
Page 63
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
At top is [illegible] conc (layer characterized by [illegible] (Below this horizon (top unit 6), bended beds strongly bended, many conics, turn here up beds shalier, move bottomize, underly long slopes & bending gets tenter upward. Some scat shell traps in lower layers, but no good fossil accumulations. (7) 4.4 Chiefly clay shale in lower 1/5 with some ob to [illegible] stained silt layers. Upper 3/4 has more silt layers, all thin (under 0.2). At top is Overt [illegible] yellow layer about 0.1 but prominent at edge of flat on bent shale above. Belownites in flat near top this unit. (8) 29.5 Chiefly clay shale, with obscure bending from thin, widely scattered silt layers. Probably somewhat boundarite [forms gray slopes near foot of bluffs of sand (calyzte) where latter is present. Most conspicuous feature is obscurity of bending. (9) 0.2± Gray to dark gray mottled, highly bontemic clay shale weathers to dk gray popcorn shoulder on slope. (10) 11.6 Interbedded clay shale, silt and very sand. Sand becoming chief constituent in "silt layers. Local Fe-stn O + [illegible] blocks common. Lower half interuzal silt-sand layers common