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| View Original: | Bulletin 429 Plate XVI A Annona Chalk.jpg (1300x1081) | |||
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| Keywords: Bulletin 429 Plate XVI A Annona Chalk.jpg Annona Chalk outcrop 1 1/2 miles east of Clarksville Tex Showing conchoidal fracture 1910 Oil and Gas in Louisiana with a Brief Summary of their Occurrence in Adjacent States Bulletin 429 United States Geological Survey Government Printing Office Washington 1910 G D Harris other versions PD-USGov Geology of Texas Annona Chalk | ||||
