Field Notebook: WY 1956
Page 59
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
0.2 Ironstone conc. layer 2.6 Siltstone blocky to shelly, and interbeds silty shaly, gray to light gray, rusty & yellow stain. 1.1 Shale, paper, clay, purple & brown blotchy 2.5 Siltstone, gray to greenish gray massive yellow powdery stain, 0.4t Ironstone conc. layer. 2.0 Siltstone, massive, gray, some fine sand ~? 8.5 chiefly chopper no becoming Claystone, gray... olive brown with irregular blobs light gray throught, latter has yellow powdery stain, some small zones red stain. Locally finely silty. Has spherulites throught. 2.3 claystone, silty, grading to siltstone dark gray & gray splashed with red and blue-black stain. Has 29