Field Notebook: Texas 1957a
Page 140
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Transcription
130 9) Conglo., brown+gray weathering. 13, chert,+ quartzite pebbles, brown sands, not sorted; last covered. 3' or more. (7/22/57/3) 10) Calcarente, dark brown weathering. zones of pebble (10%) in calcarenite. 2" to 2' beds very irregular channeler in top of bed 10.; 22', has a flat top, siliceous clastics are dominant. 11) Conglo., chert, quartzite + Co., limestone locally cemented so make this a calcarenite, but chert+quartzite dominate almost (within 5' horizontally) (7/22/57/4) 35' up (7/22/57/5-43' up. This unit becomes predominantly 1s in the upper 10' (650%) has crinche, byzozona, anroid stems, + corals, between the funicles. I think it could be called near biotural both in formation and position during Pra. 49' Brown dark brown and gray weathering Has blocks and small lenses of light brown silt which weathers out leaving ruggy appearance. 130 16 7/22/57/12 7/22/57/8 7/22/57/9 7/22/57/22 7/22/57/6 7/22/57/5 7/22/57/4 12) Calcarente, med gray weathering; has gravel size organic fragmental, 6' collection 7/22/57/6 2' beds 13) Partly covered - apparently alternations of brown silt + sandstone and calcarenite 3 cycles - 6' - 6" to 1' ls. Calcarentes in 12+13 have flat top brown silicious stained.