Field Notebook: Texas 1959
Page 128
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Transcription
4) Calcirudite, brown weathering, 6" cobbles in 4' beds of shale w/ calcareous, red brown in 6' beds Calcirudite has abundant silicified brals. 27' 5) Calcarente, gray, 1" grading up into quartz s.s. 12' 6) Calcarente, med to dark gray, 1' beds, Coll "7-6A - 1"up? a few pebbles - calcarenites have siliceous through the pores - gets circle of color. upper part a conglomerate - dolomite also in patches. 18' 7) Sandstone, red brown weathering, 1' conglomerate but pebbles in s dolast. + silicea matrix, 4 repetitions - 30' 8) LS, brown weathering, shell beds, some beds conglomeratic, silicious deposits in beds, 1' to 2' beds, -- 40' to top of knoll 9) In the next three beds change facies into orthogratite, siliceous shales, to a large extent. above beds which I think are the same as unit 8 there are 10) Sandstone and shale, friable, yellow to red-brown weathering, some beds? dark from silicious shale. 30' 11) Sandstone, light brown, orthogratite and thin beds of shales 15' (60 WNW/dip) 12) Covered above, saw beds on exposed but strikes are possible or apparent. The sequence is broken by several faults. (Kg 525' out) 400'