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Mineral Resources are further sub-divided, in order of increasing geological confidence, into inferred, indicated and measured as categories. Inferred Mineral Resource is the part of a mineral resource for which quantity, grade (or quality) and mineral content can be estimated with a low level of confidence. It is inferred from geological ...
Figure showing the relationship between Exploration Results, Mineral Resources and Mineral Reserves. The exact definitions of key terms like 'Modifying Factors', 'Inferred'-, 'Indicated'- and 'Measured Mineral Resources' as well as 'Probable' or 'Proved Mineral Reserves' are documented in the PERC Reporting Standard. [1]
A probable mineral reserve is the economically mineable part of an Indicated and, in some circumstances, a Measured Mineral Resource demonstrated by at least a Preliminary Feasibility Study. This Study must include adequate information on mining, processing, metallurgical, economic, and other relevant factors that demonstrate, at the time of ...
Coeur Reports Healthy Increases in Combined Reserves and Measured and Indicated Resources COEUR D'ALENE, Idaho--(BUSINESS WIRE)-- Coeur d'Alene Mines Corporation (NYS: CDE) (TSX:CDM) today ...
Quantity, grade, or metal or mineral content of a deposit that has not been categorized as an inferred mineral resource, an indicated mineral resource, a measured mineral resource, a probable mineral reserve or a proven mineral reserve; Results of an economic analysis that includes inferred mineral resources
Once further scientific and engineering investigation has been performed and it can be demonstrated that there are "reasonable prospects for eventual economic extraction", [2] then a Mineral Resource Report can be published or declared. There are three sub-categories of Mineral Resource within the Code, namely Measured, Indicated, and Inferred.
Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil and gas reserves and coal reserves. It is defined as the "quantity of energy sources estimated with reasonable certainty, from the analysis of geologic and engineering data, to be recoverable from well established or known ...
Diagram as published by McKelvey in 1973 [1] Diagram as published by McKelvey in 1976 [2]. A McKelvey diagram or McKelvey box is a visual representation used to describe a natural resource such as a mineral or fossil fuel, based on the geologic certainty of its presence and its economic potential for recovery.