Field Notebook: Texas 1957a
Page 64
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Transcription
(54) 20) Covered 10' (shale probably) 21) 4" brown (orangish) calcareous w/quartz to 8" 22) 5' Covered (shale probably) 23) LS, calcareous, fine, progressively to top. The upper 5" are well laminated, flat top, 24) a) Shale grayish-brown 3' b) 1" cross-laminated calcareous siltstone-- well laminated, very fine quartz sand also 25) a) Shale, gray 5' b) 4" calcareous--some quartz very fine to fine grained 26) a) Shale, gray 4 1/2' b) 6" Lake (25b) 27) Covered - 30' probably shale and at least 2 calcareous beds (55) 28) Calcareous, rubby in lower 1 1/2' feet, organic frag.; become progressively better laminated in upper 6"; flat top surface. 2', some quartz & fine sand w/gray on top surface. 29) Covered 41', several calcareous with gray shale probably 30) Calcareous, organic frag. (brachiopods, crinoids) 10" flat surface is not striking on this side; wood fragments Collection 7/5/57/16 31) Covered 18' - probably gray shale- 32) Marl, silt & clay in matrix and as coarse sand fractions. Has a well laminated upper 2" with flat top. Sort of transition between influence of source vs environment of deposition. 2' Collection 7/5/57/17 33) Covered 31' 34) "Hess" Crag, 30' +