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Contributed by Yale Peabody Museum of Natural History.
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Transcription
PG. 41
I believe the Hess Conglomerate has been deposited on the lower beds
westward to the Brooks Ranch - explains lack of outcrop. The beds above the
Hess Calcaredite are shaly and silty for a considerable distance 30'-40' upward.
They then began to alternate in some sort of cyclic deposition. {note: illustration:
bed 1: 30'+-; red and maroon shale
bed 2: 2'; orange very fine sandstone
bed 3: 7'; gray shale
bed 4: 1'; gray dolarenite (xbeds)
bed 5: 8'; gray shale
bed 6: 1.5'; orange-brown very fine ss.
bed 7: red shales ( and maroon)}
The Hess Conglomerate usually has a red shale and pebble zone either in or at
its top; in the eastern portion of Moore Ranch - In fact in the middle and western
exposure also.
The first canyon east of the ranch road through the Wolfcamp fm. has 4 or 5
Hess Conglomerate separated by red shales and buff sandstones. The Hess is
about 75' to 80' thick here - The Wolfcamp limestone thickens here and the
Gaptank limestone (#?) is well exposed. The dip of the Gaptank and Wolfcamp
increases
PG. 42
cont. from pg. 41:
from about 10°-12° to about 20° for the next 1 mile eastward; this is opposite the
anticline in the Penn. and suggest that structure is in part at least post-Pm. (The
Hess and Leonard like wise steepen). {note: illustration: See Section 31:
limest#3: 30'
300'-350'
?limest#5: 5'-10'
45'
10'
10'; limy shale and siltstone
Wolfcamp: 30'; flagy ls and massive +-
Hess conglo: 170'; orange ss and red clay; conglo and red clay.}
PG. 43
8/18/57
Sect.38 of G.S.A. Memoir
Section 30, 1/2 mile east of Moore Ranch road to higher range.
Covered below
1) Sandstone, brownish-tan, fine sand size, quartz, calcareous cement, 6" to 8"
beds; 5', 8/18/57/1.