Field Notebook: Texas 1957b
Page 167
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Transcription
46 23) Sandstone, v.f. to f.-sandy, calcareous cement; tan to brown weathering; 6" to 1' beds.; well sorted, X bedded near top; 18' 24.) Limestone, light gray, massive, 6' to 6" beds; 52' 8/18/57/9-> 1' (25) 8/18/57/11 -> covered 12' (24) 32' (23) top of unit has pink matrix like 6A q section 29.; Coll. 8/18/57/9 Coll. 8/18/57/11 25.) Covered, 12' 26.) Limestone; light gray to tan on fresh surface; has nodular weathering with limestone orange coating and mudcr detritic patterns. J 3'? poorly exposed 8/18/57/10 27.) Covered, 16' 28) Calcsudite, "New England"; has up to 6" cobbles of very small (3" or less) chert. 2" to 4" beds. 47 shale partings as much as 6" to 1' thick. The gaptank limestone changes to the west and becomes lenticular and very sandy, finally grading into a conglomerate-weathering sandstone. Beds 1,2,43 are equivalent -> to beds Ls. H3q; the gapbank for and the "A is of present bed almost recognizible. no see j.140-141