Field Notebook: Texas 1957a
Page 234
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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