Field Notebook: Texas 1957a
Page 134
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Transcription
(124) 23) LS, clastic + organic frag, gray weathering with a tinge of brown. 2 cyclic beds one (a) 3' ; (b) about 4' Collection 7/20/57/S That tops are silicified + weather a brown iron oxide color. 7' 24) Covered, 14' 25.) LS, calcsandite, both clastic + organic frag. weather by gray brown. 1' to 2" beds 12' Lamination & small echinid spines N70E 26) Covered, 31', probably brown v.f. sandstone or siltstone. 27) Maic? This unit is worth additional study. Wave-like Rx, no bed except near top in a irregular surface. 2 kinds of siltys; one light brown, one light gray - they occur interlocked with each other - also coarse sandage clast + ls fragments are twisted and warped through- out this bed. Several kinds of brach shells, Bryozoa, & fusulinace I believe this is a bed of slumped material. (125) 7/20/57/S on our studied Permian sea-shore deposit, a 3" diam pebble is staring at me. 1 1/2' 28.) 7' thick, brown weathering, v.f. sandstone. 29) LS, gray (clay) clastic, some 1/4" diam clast & quartzite, 1/2" red brown silicious upper surface. 6" - 30) Like 28., 8' 31.) LS, Lt. brown to gray brown weathering; very siltys and v.f. cc sized - an irregular 3" band of very fine pebbles. 1/2' 32) Covered, 13', probably like #28.