Dissertation: Texas 1960
Page 9
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Transcription
-128- Section 1 contd. Thickness (feet) 18. Limestone, medium to dark gray, massive, containing many different fossil frag- ments, top of unit capped by an even sili- ceous band, coll. l-18 . . . . . . . . . . . 35 17. Sandstone, light brown, very silty, made of 1/16 inch lamellae . . . . . . . . . . . 5 16. Calcirudite, medium gray weathering, massive, including 3 foot blocks of limestones like those below (units 1-15) and only a few of Gaptank lithologies, top rippled, marked with a dark siliceous surface . . . . . . . 22 Lenoxhills Formation 15. Limestone, light gray weathering, dense with vertical fracturing pattern, primarily a calcilutite in 6 inch to 2 foot beds, coll. l-15, Schwagerina franklinensis . . . . . . 19 14. Limestone, medium to dark gray weathering, pri- marily a calcilutite, some mottled colors, coll. l-14 . . . . . . . . . . . . . . . . 7 13. Limestone, light yellow-brown weathering, very sandy and silty, 6 inch to 3 foot beds . . . 12 12. Limestone, light gray, like unit 10 but with more abundant fusulinids, coll. l-12, Schwagerina franklinensis, S. lineanoda . . . 6