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Lithostratigraphy 1

Lithostratigraphy 1 - GEOL 4201 5 miles north of Fluvanna...

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GEOL 4201 5 miles north of Fluvanna, Texas in a road cut along FM 1269 Top of Llano escarpment. Edwards Limstone: Feet 3. Limestone, light gray to yellowish gray, thinly and thickly bedded, poorly washed biosparite, packstone, spar cemented; highly fossiliferous, replacement of fossils by spar and mosaic spar.. 20+ 2. Limestone, light grayish yellow, massive, fossiliferous biomicrite, wackstone, mud cement; friable……………………………... 2 1. Limestone, light gray to yellowish gray, massive, fossiliferous Biomicrite, wackstone, lime mud cement; bioturbated……… 3 Total Edwards ……………………………… 25+ Comanche Peak Limestone 8. Shale, light brownish gray, calcareous, thinly laminated, friable… 2 7. Limestone, light gray, argillaceous, wackestone, biomicrite, fossiliferous, nodular, bioturbation; thinly laminated shale, calcareous, interbedded……………………………………… 18 6. Clayey shale, light gray, calcareous, massive, friable…………….. 7 5. Limestone, light gray, argillaceous, wackestone, biomicrite fossiliferous, nodular, bioturbation……………………… ...... 11 4. Clayey shale, light gray, calcareous, thinly laminated, friable…….
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