Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Leonard so that it aids in draw forming there also. The remnants of K caps are
apparently protected by differential movement on (cont. on page 98)
PG. 99
Section 24 (see pg. 163 of book 2)
Section 14
{note: illustration: Section 14:
bed 3: 7/12/57/4}
cont. from pg. 98
these faults and can be explained in this manner.
The evidence in section 13 suggests that the Gaptank and the Wolfcamp
limestones either converged and form a combined mass of limestone, or that the
Wolfcamp is lacking. The study of section 14 indicates there is more to this than
at first meets the eye. I believe based only on lithology that unit 3 of section 14 is
the same unit as #1 of section 13a. The #1 and #2 beds of section 14 are
probably the same as bed 7 of 13b. The #8 beds of 13b may
PG. 100
cont. from pg. 99
however be equal to the #3 beds of section 14.
The fusulines may tell us the answers, but if the middle of Section 13b is the
Uddenites zone what happens to the Gaptank limestone between section 11 and
section 13?; is what I've been calling Gaptank in the western part of the Brooks
Ranch really King's #2 limestone member in the W.C.H.s? You know, Charlie
this could be confusing.
Another question is what is the red horizon of interval which some places seems
to separate the massive Wolfcamp limestone (King #2?) and the "Hess"
conglomerate (which is often not a calcarudite at its base). I suggest the upper
dolostone in section 11 is equivalent to the conglomerate.
7/13/57 - Went to El Paso to meet John Pope (Harvard '54) (Mich. 56 MS)
(Cinci. currently) and his wife.
Charles Marken and Pete Roux left on the 12th for Austin, they were instructors
at U.T. field camp, Leary's Ranch.
PG. 101
32
7/16/57
Section 15a - 3/8 miles northeast of road into central valley on Brooks Ranch.
(10° dip, N60W).
Gaptank?
1) Limestone, dark brown-gray, very fine x-talline, fusulines, some beds gray to
gray-tan. This exposure is one of several small isolated rubble heaps out from
foot of cliff. This pile of limestone is not bedded, but appears to be more or less