Field Notebook: CO 1952d
Page 47
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
P 2.1 Shale, silty gray shale Fe stain th lower 1/2, upper silty dk gray shale with sandy (fine) lenses up to 0.6) & silt laminac. Q 4.5 Sandstone, fine grained, ledgy, red brown bedded x 12m. R 1.1 Shale, gray (weather) finely silty with oil bentonite at base S 0.4 Siltstone, locally sandy, argill, brown joints. T 1.9 Clay, massive dk gray, silky, bluish weather U 3.2 Interbedded fine SS + siltstone in Fe brown weather ledges up to 1.0, and silty brown weather shale. Bentonite 1.3 up from base. V. 0 to 0.8 Dk gray silty shale with thin layer bentonite at top (locally this unit is not present) W, 5.4 Bz22) 0.3 to 0.6 is red claystone with Fe specks. Above this 0.1 gray to blue gray silty clay, Remzinder above is blocky fracturing light gray weathering silty clstu + argill. siltstn with yellow + red stain. X, 0.6 Fine qr sandstone + siltst, weather Fe bin Y. 3.2 Dk gray fobl, silty clay blocky fracture some argill, siltstone in lower part Z, 1.5 Argil" fine SS + locally silky, similar to X, Fe black + brown weat A,A 1.0 Silty clay as in Y. BB 0.4 Bentonitic Clay, grades to argill argill silt or cut out laterally. 23