Field Notebook: Texas 1957b
Page 109
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Head of Sect. 16 - K. dips N 2°. At mouth of "Road Canyon"-conglo by tanks dip 14°N strike is E-W. PG. 170 9/6/58 Moore Ranch Leonard Fm. Collection 9/6/58/1 - fusulinid coll about 850' above first S.Crasstectoria appearance. 1) Strike Leonard - N70E dip 18°NW. The Leonard has 2 rather distinct facies although the contacts between them is usually gradational. One is a silt and clay rich limestone which weathers a medium brown-gray. The other facies is a silt and yellow limestone in which the limestone have been recrystallized and dolomitized into patches of coarse crystals. Both facies have limestone with a high % of dolomite, but in the "yellow" facies extensive recrystallization is common. 2) Strike N85E dip 15°N. Collection 9/6/58/2 - 450' +- higher than #1 in Leonard. Just above massive limestone ledge (FB) on King's map. Collection 9/6/58/3 - about 300 yards west of collection #1 and at about the same stratigraphic positions. PG. 171 There are several fusuliferous zones in the lower couple of ridges forming grayish and brownish limestone. From field identification it would seem as if there are 6 or more Schwagerina species represent. Haymond Anticline - at Chonetes Hill. loc. [King's 1930 map locality] 1) dip 18°S - Strike N85E - Haymond 2) K dips 2°N 3) Gaptank Conglomerate 13°S dip 4) Haymond just beneath Chonetes Hill - dip 20° SE, strike N65°E. 5) Chonetes Hill - a little structured, up on south side, limestone swings around in a shallow syncline. Strike N45E dip 5°N. The first conglomerate is faulted down against the limestone and this fault runs NNE through the hill. The rest of the outcrop strikes about N65E and dips south about 15°. PG. 172 The Gaptank lower limestone is very dark and is apparently separated from exposures of Dimple out on the "Flats" because of the Dimple's lack of fossils. The lower Gaptank limestone and the Haymond are gradational - shales and thin ss giving way to shales and thin limestone in an interval of 20'. PG. 173 9/7/58 Lenox Hills - Collected for G.A. Cooper, see notes pg. 129.