Field Notebook: WY, SD 1956
Page 93
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Transcription
brown. About 0.5 top ss then layer slightly gritty light gray clstn then another 10+ ft stained red with loc. calic accumulations This capping interval grades without sharp contact to ss below (1) 0.4->? clzystone, gray, slightly silty, sub- couch czect. Offset to cut about 70 yards SE along road from section above. Base unit 3 of preceding section rests on a ferroginous silty ss about 0.4, but laterally ss in under this ferroginous czp (1) Up to 100 light gray clstn. mottled pink & purple, highly spherulitic at base. (2) Purple siltst, spherulitic, grading 45