Field Notebook: WY, SD 1956
Page 17
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Transcription
1.0 - 2.0 Sandsione, fine-grained, cross-lam, F. impreg, weathers O-B, forms ledye just below hill crest. Part B, Measuring down from "contorted silt" 2.2 Sandstone, very fine-grained, to siltsione qrey white, laminated, with lamined contorted by (subsequcus?) flow + slump, forms crumbly, distinctive white ledge 4.2 Claystone, light greenish qrey, silty, in upper 1.2 becoming brick- red in lower 3.0 and grading to "" qrey of unit below. 12.0 - ? Claystone, plastic, finely silty, qrey at top grading downward to black. weathers to popcorn slope. Slope wash Note-1. Float of polished pebbles - very sparse, (Sample 2 - includes fossil, gooency) appears to come from top of contorted silt and above. 7.