Field Notebook: SD, NE 1959
Page 109
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Transcription
57A - (cont.) Skeleton section 2: Begins on Limopsis conus, which are gray is weathering Orange brown and purple brown, break to angular chunks. Sparsely fossiliferous and a few scattered P-B conus - rare. (1) 21.0 Silt, clayey, gray, mixed, with blobs + stringy vf sand, some old stain. Lower '12 ft, more clayey, weathers to gray checkered slope, upper half more sandy, light brown gray - much of which prob. wash from above. Fairly sharp change (2) 25.0 Sand and silty gray clay, crudely interbedded to mixed sand weathers yel-gray to OB, slope weathers to lite yellow brown or gray. Bending in base? 3'. About 10+ from base is zone scattered yellow brn conus with silty gray sockets. Between here. From 5 to 11 feet above base is zone Protocordiz - P. nebrascens conus, some between some very fossilif. Upper 4.0 obscured.