Points worth remembering when analyzing Silverado's Nolan Property
posted on
Aug 10, 2010 06:29AM
Mineral Claims
General term used to describe the manner of land acquisition under which the right to explore, develop and extract metals is established.
Mineral Deposit
A mineral deposit is a mineralized body, which has been intersected by a sufficient number of drill holes or by underground workings to give an estimate of grade(s) of metal(s) to warrant further exploration or development. A mineral deposit does not qualify as a commercially viable mineral deposit with reserves under standards set by the Securities and Exchange Commission until a final, comprehensive, economic, technical and legal feasibility study has been completed.
Mineral Reserve
Securities and Exchange Commission Industry Guide 7 Description of Property by Issuers Engaged or to be Engaged in Significant Mining Operations of the Securities and Exchange Commission defines a reserve’ as that part of a mineral deposit which could be economically and legally extracted or produced at the time of the reserve determination. Reserves consist of:
(1) Proven (Measured) Reserves. Reserves for which: (a) quantity is computed from dimensions revealed in outcrops, trenches, workings or drill holes; grade and/or quality are computed from the results of detailed sampling; and (b) the sites for inspection, sampling and measurement are spaced so closely and the geologic character is so well defined that size, shape, depth and mineral content of reserves are well- established.
(2) Probable (Indicated) Reserves. Reserves for which quantity and grade and/or quality are computed from information similar to that used for proven (measured) reserves, but the sites for inspection, sampling and measurement are farther apart or are otherwise less adequately spaced. The degree of assurance, although lower than that for proven (measured) reserves, is high enough to assume continuity between points of observation.
Mineral Resource
National Instrument 43-101 Standards of Disclosure for Mineral Projects of the Canadian Securities Administrators defines a “Mineral Resource” as a concentration or occurrence of natural, solid, inorganic or fossilized organic material in or on the Earth’s crust in such form and quantity and of such a grade or quality that it has reasonable prospects for economic extraction. The location, quantity, grade, geological characteristics and continuity of a mineral resource are known, estimated or interpreted from specific geological evidence and knowledge.
Mineral Resources are sub-divided, in order of increasing geological confidence, into Inferred, Indicated and Measured categories. An Inferred Mineral Resource has a lower level of confidence than that applied to an Indicated Mineral Resource. An Indicated Mineral Resource has a higher level of confidence than an Inferred Mineral Resource but has a lower level of confidence than a Measured Mineral Resource.
(1) Inferred Mineral Resource. An ‘Inferred Mineral Resource’ is that part of a Mineral Resource for which quantity and grade or quality can 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.
(2) Indicated Mineral Resource. An ‘Indicated Mineral Resource’ 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 and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough for geological and grade continuity to be reasonably assumed.
(3) Measured Mineral Resource. A ‘Measured Mineral Resource’ is that part of a Mineral Resource for which quantity, 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.
Industry Guide 7 – “Description of Property by Issuers Engaged or to be Engaged in Significant Mining Operations” of the Securities and Exchange Commission does not define or recognize resources. As used in this Annual Report on Form 10-KSB, “resources” are as defined in National Instrument 43-101.