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Summary
| Description |
English: Devils Tower National Monument geologic cross section, where Tp is the phonolite porphyry, Trs is the Spearfish formation, Jgs is the Gypsum Spring formation, while Jsb, Jsh, Jsl, and Jsr are members of the Sundance formation. |
| Date | |
| Source |
Geology of Devils Tower National Monument, Wyoming, USGS Bulletin 1021-I https://pubs.er.usgs.gov/publication/b1021I |
| Author | Charles Sherwood Robinson, USGS |
Licensing
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:24, 14 April 2021 | | 1,776 × 482 (98 KB) | Pi3.124 | Uploaded a work by Charles Sherwood Robinson, USGS from Geology of Devils Tower National Monument, Wyoming, USGS Bulletin 1021-I https://pubs.er.usgs.gov/publication/b1021I with UploadWizard |
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