File:McKelveyDiagram.jpg

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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

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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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Date/TimeThumbnailDimensionsUserComment
current23:03, 15 November 2012Thumbnail for version as of 23:03, 15 November 20122,063 × 1,200 (507 KB)Miguel.baillon (talk | contribs)User created page with UploadWizard

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