File:Original McKelvey Diagram 1976.pdf

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Original_McKelvey_Diagram_1976.pdf ‎(725 × 591 pixels, file size: 147 KB, MIME type: application/pdf)

Captions

Captions

Figure 1, Classification of Mineral Resources, the original McKelvey Diagram (or McKelvey box) as of 1976

Summary

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Description
English: Figure 1, Classification of Mineral Resources, the original McKelvey Diagram (or McKelvey box) published in 1976 https://pubs.usgs.gov/bul/1450a/report.pdf
Date
Source

"Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey : Geological Survey Bulletin 1450-A" by Thomas S. Kleppe and V. E. McKelvey, U.S. Bureau of Mines and U.S. Geological Survey.

Washington, D.C.: United States Government Printing Office, 1976, p. A2.
Author V. E. McKelvey

Licensing

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Public domain
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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current14:37, 2 September 2021Thumbnail for version as of 14:37, 2 September 2021725 × 591 (147 KB)Mary Mark Ockerbloom (talk | contribs)Uploaded a work by V. E. McKelvey from "Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey : Geological Survey Bulletin 1450-A" by Thomas S. Kleppe and V. E. McKelvey, U.S. Bureau of Mines and U.S. Geological Survey. Washington, D.C.: United States Government Printing Office, 1976 with UploadWizard

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