File:Usgsdrillcore.jpg
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Summary[edit]
| Description |
Exploration diamond drilling- Extraction of a core using triple-tube | ||
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| Source |
Source: USGS | ||
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| Author |
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| Permission (Reusing this file) |
See below.
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Licensing[edit]
 | This image is a work of a United States Geological Survey employee, taken or made as part of that person's official duties. As a work of the United States Government, the image is in the public domain in the US. For more information, see the USGS copyright policy. See Wikipedia:Public domain and Wikipedia:Copyrights for more details. |  |
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Any user may perform this transfer; refer to Wikipedia:Moving files to Commons for details. If this file has problems with attribution, copyright, or is otherwise ineligible for Commons, then remove this tag and DO NOT transfer it; repeat violators may be blocked from editing. Other Instructions
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:39, 3 October 2006 | | 400 × 300 (35 KB) | Zeizmic (talk | contribs) | Source: USGS |
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File usage
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