Abstract
Based on a factor analysis of the geochemical and mineralogical data on drill holes, the geochemical associations that allow the localization of the areas of mineralization at different stages of the formation of the Nakhodka porphyry-epithermal system were determined. The lateral and vertical geochemical zoning of mineralization was described. Geochemical indicators of vertical zoning (AgPbZn/CuBiMo and AgAsSb/CuBiMo) that provide estimates of the erosion level of porphyry-epithermal systems and porphyry copper stockorks were suggested.
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Original Russian Text © Yu.N. Sidorina, 2015, published in Vestnik Moskovskogo Universiteta. Geologiya, 2015, No. 2, pp. 78–84.
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Sidorina, Y.N. The geochemical zoning of the Nakhodka porphyry-epithermal system (West Chukotka). Moscow Univ. Geol. Bull. 70, 152–158 (2015). https://doi.org/10.3103/S0145875215020088
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DOI: https://doi.org/10.3103/S0145875215020088