Field Notebook: WY 1956
Page 53
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
3.5 Shale, dk gray to black, clayey becoming silty at base. 3.0 Siltstone, massive, sandy, light gray to gray white, locally a silty ss in upper part, grades abruptly to units above and below 4.15 Siltstone, gray, mottled with red (in lower 1.0), (varies), clayey, grading to silty gray shaly clays tone with carb. fragments. Variegated part with Fe violets and blobs. 3.0 Sandstone, very fine grained, qts with grains red + blcht., stained yellow + yellow brn. Frizblo. 1.6 Shale, dark gray fissile, becoming silty upward. Carb. flecks. 3.5 Siltstone, massive, gray-white very fine 2.0 Siltstone, massive as above but clive with local reddish stain. 1.1 Siltstone, as above but gray, possibly more slightly clayey 26