A comparative study of three-driven Mineral Potential Mapping techniques.

Guillaume Caumon and Julian Ortiz and Olivier Rabeau. ( 2006 )
in: Proc. 26th Gocad Meeting, Nancy

Abstract

High prices of mineral resources and progresses in models of mineral deposits maintain a high activity in mining exploration. Many data integration techniques exist to assess the mining potential of a region, and it may be difficult for the practitioner to select the most appropriate. This paper compares two types of data-driven methods to estimate a probability map of mineralization occurrences from several sources of information: multivariate logistic regression, under the assumption that all indicators are independent, and weights of evidence, which assumes only conditional independence. A proposal to depart from conditional independence assumptions in Weights of Evidence is also presented, that allows a better management of data redundancy. All three methods are applied to gold potential mapping in a 3D geo-model of the Duparquet region located on the Porcupine Destor fault in the Abitibi subprovince, Canada.

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    BibTeX Reference

    @INPROCEEDINGS{P26_Caumon,
        author = { Caumon, Guillaume and Ortiz, Julian and Rabeau, Olivier },
         title = { A comparative study of three-driven Mineral Potential Mapping techniques. },
     booktitle = { Proc. 26th Gocad Meeting, Nancy },
          year = { 2006 },
      abstract = { High prices of mineral resources and progresses in models of mineral deposits maintain a high activity
    in mining exploration. Many data integration techniques exist to assess the mining potential of a region,
    and it may be difficult for the practitioner to select the most appropriate. This paper compares two types
    of data-driven methods to estimate a probability map of mineralization occurrences from several sources of
    information: multivariate logistic regression, under the assumption that all indicators are independent, and
    weights of evidence, which assumes only conditional independence. A proposal to depart from conditional
    independence assumptions in Weights of Evidence is also presented, that allows a better management of data
    redundancy. All three methods are applied to gold potential mapping in a 3D geo-model of the Duparquet
    region located on the Porcupine Destor fault in the Abitibi subprovince, Canada. }
    }