Field Notebook: Texas 1959
Page 98
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Transcription
12) LS., gray, 1'-2' beds, vertical fracture on cleathering. Coll. 4-12A - 3' up 4-12B - 12' up problematic from 1-12C - 22' up 4-12D - 32' up top of bench 13) LS., dark gray, calcareite, 6" to 1' bed. Coll. 4-13A - 20' up Follows - Neal fence here up - 23' 14) Shales, brown, grades upward into clayey LS + finally into a calcarenite at top Coll. 4-14 at top - 27' 15) LS., light to mid. gray, 6" to 1' bed coll. 4-15A - 12' up coll. 4-15B - 50' up thick beds commonly reach 10-15' in this unit 4-15C - 78' up 106' 16) LS., med gray, little shale, 6" to 2' beds, rubble in part - Coll. 4-16A - 3' up - Coll. 4-16B - 26' up several beds of dolostone common vt. calcareite - becomes dark gray above 30' & light gray above 42' Coll. 4-16C - 43' up Coll. 4-16D - 58' up 59' 17) LS., light gray, silty, 3" to 1' beds rubble with thin shale bands - small "Staffella" juveniles common in beds. - above 33' dark gray - small, subcylindrical fossil preserved by dolomite (47') 52' 18) Dolostone, brown-gray + LS., gray-brown 4-18A - 11' up 27' 19) LS., light gray, 2-4' beds, silty, clayey, 37'