File:Bulletin 429 Plate XIV B Concretions Slaughterpen Bluff.jpg
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| Description |
English: Bulletin 429 Plate XIV B original caption: Cone-in-cone structure shown in calcareous concretions, at Slaughterpen Bluff, Shreveport. |
| Date | |
| Source | 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. |
| Author | G. D. Harris |
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| current | 17:21, 1 May 2016 | | 1,287 × 1,029 (159 KB) | Jstuby (talk | contribs) | User created page with UploadWizard |
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