An expanded de Wijs model for multifractal analysis of mineral production data

摘要: Hydrothermal ore deposits form by enriching elements and minerals from background values to very high concentrations in small volumes of the crust. The de Wijs model provides a simple widely used mathematical description this process; however, it does not account for increase density which generally attends formation specific gravity many mineral deposits. We present an expanded version investigate distribution tonnage as well grade. generates log–normal relationship between Continuous multifractal analysis results new using method moments technique predicts that grades are (as original model) but multifractal. Production data vein-hosted gold Archaean Zimbabwe craton display grade, nature nonmultifractal tonnage, generated model.