Field Notebook: SD, CO, WY 1967
Page 63
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Transcription
LOC. 101 Section C Head of draw behind ridge tracing E from N. prong OW creek. Beginning at top conc. ledge traced across from top of Section A - 16, top unit 16 UNIT 1 Chiefly obscured by w2sh, but top underlying ledge with interference ripples and some surface trails. Overlain by following sections, thickness approx w2sh, yellow wash sand I.b. dk grey sh., + q.t. ozuled beds, sand - some clay hum plus, humus fissile sand layers top & base 2.0 ft 2.0 ft 3.0 ft C A A Over C, massive white sands begin. As in units 2 + 3, within at most 2' Unit 2 Sand, massive rounded crop tabular x 17m with considerable festooning in tb beds. Irreg spaced grey log-like cones. Sand is chiefly fq, may be some mq bc. 29