Field Notebook: SD, NE 1959
Page 81
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Transcription
found up to 2.0 from bzso of this outc. 7) 6.0 Sandstone, v.fq. to fq., clayey, silty, somewhat glauconitic, gray to greenish or yellowish qrzy in lower 4.0 which is mixed and mottled except for lower 0.6 ft. that is a laminated to x-lam. yellowish gray to greenish sznd and silt. Between 3.5 and 5.5 from bzso sznd becomes an OB to reddish semi-indurated crumby ledge containing subspherical, ±1.0, to irreg. knobby limestone coons which weather red-brown and are fossiliferous - contain loc. a PB of Protocevdiz and/or masses Pteriz nebrzskensis. Crumbly ledge is silt-sznd with CaCO3 cement, its OB weathered color is in contrast to grayer surrounding beds. 8) 3.9 Sandstone vfq, fq, clayey, irregular pods silty clay. Mixed and mottled in lower 2.2 but upper 1.7 is interbedded dk gray shale and Fe-stzined fq, ss that weathers to conspicuous rusty bend on outcrop. 9) 4.8 to ? Shale, silty, light gray, purplish pleat fragments. Weathers to light gray slope Grass roots at top of bluff.