Fractal and Multifractal Modeling of Hydrothermal Mineral Deposit Spectrum: Application to Gold Deposits in Abitibi Area, Ontario,Canada
  • 【摘要】

    A number of fractal/muitifractal methods are introduced for quantifying the mineral deposit spectrum which include a number-size model, grade-tonnage model, power spectrum model, multifractal model an... 展开>>A number of fractal/muitifractal methods are introduced for quantifying the mineral deposit spectrum which include a number-size model, grade-tonnage model, power spectrum model, multifractal model and an eigenvalue spectrum model. The first two models characterize mineral deposits spectra based on relationships among the measures of mineral deposits. These include the number of depesits,size of deposits, concentration and volume of mineral deposits. The last three methods that deal with the spatial-temporal spectra of mineral deposit studies are all expected to be popularized in near future. A case study of hydrothermal gold deposits from the Abitibi area, a world-class mineral district, is used to demonstrate the principle as well as the applications of methods proposed in this paper. It has been shown that fractal and multifractal models are generally applicable to modeling of mineral deposits and occurrences. Clusters of mineral deposits were identified by several methods including the power spectral analysis, singularity analysis and the eigenvalue analysis. These clusters contain most of the known mineral deposits in the Timmins and Kirkland Lake camps. 收起<<

  • 【作者】

  • 【作者单位】

    Department of Earth and Atmospheric Science

  • 【刊期】

    地球科学学刊 SCI 2003年3期

  • 【关键词】

    mineralization spectrum  power-spectrum  multifractai spectrum  eigenvalue spectrum and GIS modeling 

  • 【基金项目】

    supported by "Non-linear Information Extraction and Integration" 国家高技术研究发展计划(863计划) Ontario Mineral Exploration Technology Program (OMET)