Field Notebook: CO 1951c
Page 57
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Transcription
3.0 Dk gray highly silty clay with a few zones silty clay and scattered fine silt laminary, Lower to almost argill silt, 0.15 Bentonite. 0.4 Argilaceous siltstone 1.0 Dkgray clay shale slightly silty 1.3 Med to fine ss, argilaceous, feruginous An unbedded mixed zone with some coarse grained streaks, argill mix is cob brownish thin irreg swirls. Locally a zone of coarse friable ss with small chert pobs at base + where this present no obvious discont with bed below Ripple marked surface. 3.0 Massive fine to coarse, locally congloom.ss Grades from siltstn to cgl upward, Cgl concentrated in upper .6, tho locally stringers as much as 1.0 into bed. discont. .3 to 1.2t Silty claystone, w/oth light gray with pink streaks. 1.0 to 2.0 Massive fine grained siltstone, pink brown w/oth sim(ilar to above 13.8 Covered with slope wash - shows patches weathered claystone, gray + yellow above some red stained zones in lower part, 38.0t Sandstone, massive, x lam., ordered to conglomeratic - cgl zones throughout. Typical Little. [illegible] 27