Field Notebook: SD, NE 1959
Page 59
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Transcription
[25 sec? = loc 194] [see p. 25] cm Section 2 - detail (1) Upper concret ion layer (maroon jacket - calc. yellow filling - nodule fernz) (2) 23,1 Silty clay grading upward to clayey silt, dk gray to gray, weathers to light gray. Upper 4' commonly puffs to crude popcorn, locally brown zone on slope about 2' from top. top is local zone gypsistic. Local punky silt concretions in upper 2'. Considerable OB + gypsistic stems scattered throughout unit. (3) 3.0 Clayey silt as below (4) 53,5 Thinly interbedded and interlaminated silty shale, siltstone and fine-grained sandstone, with SS + siltst. increasing upward. Local indurated lenses from 27' up. Gradual color change from gray to yellow gray. Local platy clay brown, flat concretions 47.7. Some OB stain in upper (5) 23,5 Chiefly sandstone, massive, x-lzm but showing scattered banding - in lower part by shale ptngs, in 28