Dissertation: Texas 1960
Page 189
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Transcription
-217- Section 32 contd. Thickness (feet) 12. Limestone, gray weathering, massive beds, many large blocks of limestone, well rounded, 6 inches to 8 foot beds . . . . . . 32 11. Covered, probably blue-gray shale, one coll. 32-11 bed of silty limestone, . . . . . . . . . . 23 10. Sandstone, light brown weathering, upper 3 feet gradational with unit 11, 6 inches to 2 foot beds . . . . . . . . . . . . . 19 9. Shale, like unit 7, becomes sandy near top . . 46 8. Sandstone, orange-brown weathering, very fine quartz sand, silty, 2 to 3 inch beds, fragments of wood, crinoids, and brachiopods . . . . . . . . . . . . . 3 7. Shale, green-gray, a few thin beds of very coll. 32-7 fine sandstone and siltstone, . . . . . . . 27 6. Sandstone, orange-brown weathering, fine quartz sand with calcareous cement, a few wood fragments, lower 1 foot weathers green-gray . . . . . . . . . . . . . 8 5. Shale, gray to blue-green, several 1 inch sandstone beds . . . . . . . . . . . . 10 4. Sandstone, orange-brown weatherings, medium quartz sand, pebbles are siltstone, maxi- mum diameter 1/2 inch, brachiopods,