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Contributed by Yale Peabody Museum of Natural History.
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Transcription
Addition to preceding section (base of
Eichers E22 Crooked Creek)
Starting on top of unit I sandstone of
preceding section and measuring up.
(7) 0.8+ Sandstone, fine gr and siltstone
intermixed, minor clayey siltst,
weathers white with Fe br to
orange, stain and some red
splotches. Locally Fe specks in
this zone.
(6) 3.0 Claystone, black to gray; at base
becomes somewhat glisty as
it gets grayer + silther downward.
(5) 6.0 Siltstone, massive to platy, gray
with some shaly laminato,
weathers buff to Fe brown
becomes platier upward. Locally
at base is 0.2 ironstone with
gypsum
(4) 12.0 Sandstone platy, with interbeds
shaly siltstn + about 4 thin
ironstones - one at base step.
See above 20