Field Notebook: WY, SD 1956
Page 55
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Transcription
1) 1.1 siltstone, massive, grey, hard) forms gray-white crumbly lodge, some o'B stain. 2) 2.0 ± Shale, black, silty fissile, becoming saltier at top 3) 3.1 Szuastone, very fine-grained- prob should be called z siltstn. Massive, lodge-forming weathers light yellow-brown has Fe stone concs in upper surface. Besztl 0.7± is soft becoming shaly. Slopowash with typical Fall River Fe stone r'worm'- tracked silt float. Note- polished pebbles in float on lower gray claystone - few and not found in float above top of it 26