Field Notebook: Texas 1957b
Page 173
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Transcription
(52) 37 [seep. 124-127, 169] 8/20/57 (37) Section 32, west side x Canyon (Road to high pasture) dgp N/W 23° Covered below 1) Limestone, dark gray with layer and irregular patching orange-brown sandstone. Brack shell flags 1' to 2' beds; 14'. 8/20/57/1 (= #51s on Gap tank g King) ? 2) Covered, 37'; mostly greenish gray shale. Coll. 8/20/57/9 3) Sandstone, orange-brown weathering; 8" to 1' thick; well sorted, up to f.f. sizes, well cemented (Fe, &? silica?) ; 1½' 4) Covered, 52', a few feet g-shale partly effaced at base. 5) Calcarenite, dark limestone cobbles up to 4" in diam, reddish to orange-brown sand matrix well cemented; at least 4' thick, base is covered under #1. 8/20/57/2 Many fissures in matrix. 6) Shale, green to gray, 0'-2' very centricular 7) LS; dark gray, shell hack, furculinae common in thinner beds (3"-6") near base; brachs + widesommon in up part ; 11' (8/20/57/3) 8) Covered, 58', mostly shales than beds of limestone in lower 10'. 19 bed has slumped down to cover this interval. Variable in thickness + lithology. 9) LS, v. light gray to nearly white; organic fragmental; many brachiopod shells + Crinoid stems; some furculinae; Coll. 8/20/57/4 near base. Massive beds, singular weathering lines visible to loading. 5' to 10' beds; 43'; Coll. 8/20/57/15- in top bed. 10) Calcarenite, light yellowish gray; very vitty near base, became v.s. s.s. size at top; 11', coarse bedding, poorly sorted - Cooke like stream deposits rather than marine action. Coll. 8/20/57/6