File:McKelveyDiagram.jpg
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Summary
| Description |
English: A "McKelvey diagram", a graphical representation of mineral resource classification with respect to economics and geologic certainty |
| Date | |
| Source | US Geological Survey Circular 831, p.5 |
| Author | US Geological Survey |
| Permission (Reusing this file) |
US federal government |
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 | 23:03, 15 November 2012 | | 2,063 × 1,200 (507 KB) | Miguel.baillon | User created page with UploadWizard |
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