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There are several classification systems for the economic evaluation of mineral deposits worldwide. The most commonly used schemes base on the International Reporting Template, [1] developed by the CRIRSCO – Committee for Mineral Reserves International Reporting Standards, like the Australian Joint Ore Reserves Committee – JORC Code 2012, [2] the Pan-European Reserves & Resources Reporting ...
Whilst the SAMREC and SAMVAL Codes adhere to similar principles, the main difference is that SAMREC focuses on resource-reserve estimation and SAMVAL on their monetary valuation. [3] The code sets forth fundamental principles that a Competent Mineral Assets Valuator (CV) should adhere to when conducting and reporting on a mineral asset valuation.
Classification and management of natural resources such as minerals and petroleum are classified using differing schemes. [4] [5] In 1997, UNECE published the United Nations Framework Classification for Reserves and Resources of Solid Fuels and Mineral Commodities (UNFC-1997) as a unifying international system for classifying solid minerals and fuels. [6]
The National Instrument 43-101 requires substantially more technical disclosure to the market than the equivalent JORC Code, because the JORC Code is primarily a code for reporting the status of a mineral resource, whereas NI 43-101 is a code of securities disclosure. This distinction is based on the derivation of the two codes: the JORC Code ...
A Mineral Reserve includes diluting materials and allowances for losses that may occur when the material is mined. [3] Probable Mineral Reserve. 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.
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The Australasian 'Joint Ore Reserves Committee - JORC [5] was formed in 1971 because of concerns about the increase in unacceptable reporting practices (e.g. Poseidon Bubble). The JORC [ 5 ] Code was first published in 1989, with the guidelines published in 1990.