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Message: Re: more geology
4
Mar 02, 2011 04:26PM

That's a good link. Here's a piece out of it:

resource calculation
Resources are naturally occurring concentrations of minerals in the earth's crust in such concentrations and structures that extraction is potentially economically feasible. A National Instrument 43-101 resource calculation means that an independent, qualified person has visited the property, reviewed the historical data, and calculated estimates of the project's mineral resource.

Mineral Resource is sub-divided in three categories according to the level of geological confidence: Measured (greatest confidence), Indicated, and Inferred. The definitions below are taken from the Canadian Institute of Mining, Metallurgy, and Petroleum's CIM Standards on Mineral Resources and Reserves available online atwww.cim.org/committees/CIMDefStds_Dec11_05.pdf

a "measured mineral resources" is that part of a Mineral Resource for which quanity, grade or quality, densities, shape, physical characteristics are so well established that they can be estimated with confidence sufficient to allow the appropriate application of technical and economic parameters, to support production planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to confirm both geological and grade continuity.

an "indicated mineral resourse" is that part of a Mineral Resource for which quantity, grade or quality, densities, shape, and physical characteristics, can be estimated with a level of confidence sufficient to allow the appropriate application of technical and economic parameters, to support mine planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to confirm both geological and grade continuity.

an "inferred mineral resources" is that part of a Mineral Resource for which quantity, grade or qualitycan be estimated on the basis of geological evidence and limited sampling and reasonably assumed, but not verified, geological and grade continuity. The estimate is based on limited information and sampling gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes.

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Mar 02, 2011 04:55PM
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Mar 02, 2011 05:19PM
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