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Mineral resource estimation is used to determine and define the ore tonnage and grade of a geological deposit, from the developed block model.There are different estimation methods used for different scenarios dependent upon the ore boundaries, geological deposit geometry, grade variability and the amount of time and money available.
Quantitative mineral-resource assessments are defined as the numerical estimate of the amount, quality, and in some cases, value of undiscovered minerals (that is, metal or industrial mineral) present within a specified area (tract). Their purpose is to provide a framework for making decisions by governments or institutions concerning mineral ...
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 ...
SGS Genesis (previously SectCAD, BlkCAD, PolyCAD, Geostat) is the fruit of more than 30 years of expertise in software development for the modelling of mineral resources. . Indeed, in 1981, SGS S.A., formerly Gamma Geostat International Inc. was among the pioneers in computer based geostatistical methods and had created one of the first geological modeling software for the first generation of ...
Python module for geostatistical modeling, designed for mineral resource estimation Opengeostat Consulting MIT/GPL Windows, Linux and OSX Fortran 95, Cython and Python It has functions for drillhole calculations, block modeling, wireframing and geostatistics with modified gslib code linked into python gstlearn [6]
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. The diagram is used to estimate the uncertainty and risk associated with availability of a natural resource.
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.
Extrapolations from a single control point, and thereby resource estimation, are dependent on nearby producing analogs with evidence of economic viability. Under these circumstances, pilot projects may be needed to define reserves. [1] Any other resource estimates are likely to be analog-only derived YTF volumes, which are speculative.