Mineral Reserves4 Jun 2012 11:33
REPORTING of Mineral Resources...Start with page 12......REPORTING of Mineral Reserves.....Start with page 17.....:-)
SAMREC......South African Code for Reporting of Exploration Results,
Mineral Resources and Mineral Reserves
http://www.samcode.co.za/downloads/SAMREC2009.pdf
"32. A ‘Mineral Reserve’ is the economically mineable material derived from a
Measured or Indicated Mineral Resource or both. It includes diluting and
contaminating materials and allows for losses that are expected to occur
when the material is mined. Appropriate assessments to a minimum of a
Pre-Feasibility Study for a project and a Life of Mine Plan for an operation
must have been completed, including consideration of, and modification
by, realistically assumed mining, metallurgical, economic, marketing, legal,
environmental, social and governmental factors (the modifying factors).
Such modifying factors must be disclosed.
Mineral Reserves are reported as inclusive of diluting and contaminating uneconomic and waste material delivered for treatment or dispatched from the mine without treatment. To avoid confusion in reporting Mineral Reserves, the definition of treatment is taken to include any beneficiation of the raw product that might take place before or during the metallurgical process. For clarity, tonnages and grades of saleable product may be reported for certain commodities, with clear descriptions indicating such."
"21. A ‘Mineral Resource’ is a concentration or occurrence of material of
economic interest in or on the earth’s crust in such form, quality and
quantity that there are reasonable and realistic prospects for eventual
economic extraction. The location, quantity, grade, continuity and other
geological characteristics of a Mineral Resource are known, or estimated
from specific geological evidence, sampling and knowledge interpreted
from an appropriately constrained and portrayed geological model. Mineral
Resources are subdivided, and must be so reported, in order of increasing
confidence in respect of geoscientific evidence, into Inferred, Indicated or
Measured categories.
A deposit is a concentration (or occurrence) of material of possible economic
interest, in or on the earth’s crust, that may include mineralized material
that cannot be estimated with sufficient confidence to be classified in theInferred category. Portions of a deposit that do not have reasonable and
realistic prospects for eventual economic extraction are not included in a
Mineral Resource."