Field Notebook: WY 1955a
Page 23
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Transcription
1.0+ Sandstone, soft, fine grained argillaceous, locally harder less clayey grades into unit above, gray-white. Some timely distinct, cark? gives it purplish streaks locally. 4.4 Siltstone (locally sandy) clayey, to silty gravel clstu; light gray, cark rootlets? weathering yellowish white. Containing irreg elongate branching Fe conc masses & round balls of it, chiefly in upper 1/2. L2hote <-> Fall River 1.3 Siltstone, hard, dark gray grading up to clt gray silty clstu, full of cark remains, mostly carbonized, locally basal hard siltst thickens cutting channel- like into unit below. 0.4+ Lignitic shale, varies locally in thickness but rarely more than 0.5. 11