Field Notebook: SD, CO, WY 1967
Page 49
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Transcription
lower 1/2; up 1/2 local shi plams,; but softer than lower locally.; Numerous local cone leclgs, ripple (white) with trails some burrows, but not as plentiful as lower units. Unit 5 +4°, 43' Sand, appears massive, color change to light gray begins this interval though orange tints; Still thin beds, X low but visible chiefly in cones, which are either grayish slabby or hard RB. Irred distrib for most part. Thinbedded top interval fairly continuous. Unit 6 -11°, 50' Sand, obscured in slope-- Numerous RB cone layers + gray. Obscured. Unit 7 -20°, 50' Sandst, massive w/wh graywhite some Ophio in bssl 3ft as cly pellet forms. Very obscure bedding is low angle X low pods. tbk. Cap thin cone, rippled as irreg shallow channel incision in sand. 15' +3 22