Field Notebook: Texas 1957b
Page 107
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
slight anticline flexture toward the east. (Check to see if Moore's dips are any steepness). PG. 166 {note: illustration followed} PG. 167 The upper dolostones here are sacchoidal in weathered surface, the dolo rhombs about medium size. Occasional molds of fusulinids or brachiopod but not preserved well enough for identification. A few horizons seem silicified, but no apparent fossils. The lower carbonate is now a dolomitic limestone with considerable amounts of silt and clay. - This forms perhaps 600' at Brook's Ranch. Drove past Allison Ranch to outlier of K and walked over to the Haymond outcrop past to the NE. Here the Haymond dips about 30° SW, Strike N40W, without much apparent folding or faulting just nice even beds. These sandstones have fucoidal and flow cast marks and much slump crinkles - quite a mess. The "Hess" of King is very poorly exposed along the southern flank of the K cuesta. I haven't walked it out because it doesn't seem to be worth it - it might show a thinning or disappearance of the S.C. zone but the lack of control eastward and westward doesn't make this significant. PG. 168 9/5/58 - Moore Ranch Haymond red hill - 1) dip 15° NW, strike N65E about 100 yards SE of water tank. 2) 75 yards south of tank - dip 65° NW, strike N40E. These beds then swing around in an anticline whose other limb dips 18° SE strike N50E. It was on this structure that the Alexander Syn. drilled their well. 3) Due east of tank 150 yards, dip 45° N, strike N65E. 4) 300 yards east of tank, source as (3). In between the beds do a swirl, probably, tightly folded or faulted. 5) Lower Gaptank 200 yards NE of tank, dip 50° N, strike N65E: a) Conglomerate - 10 - top covered; b) limy, ss, with many fossils and shale largely covered. 90'; c) limestone dark gray, crinoid cochinas, 20'. 6) 100 yards ENE of Tank, Haymond dips N50°, Strike N80E. The Haymond is a very evenly sorted quartz ss, with medium to fine laminated beds, some cross beds and some slump structures. Weathered colors and red- brown and gray. PG. 169 Moore Ranch high pastures - (1) N85E, dip 12N.(2) due N14°,(3) K [Cretaceous]- N at 3; (4) near fault. Strike N75°E, dip 18°, but changes back to E+- strike and 9° N dip on each side.