Microheterogeneity of the Koupol deposit fahlores as a reflection of changing of physicochemical parameters of the ore-forming solution

Abstract

New data on a zonal structure of the Koupol deposit fahlores grains are given, and features of their chemism are shown. The fahlores chemical composition within the zones evolves from essentially arsenious (Fe-tennantite and Zn-tennantite), through mixed fahlores (Zn-tennantite-tetrahedrite arsenious and Zn-tennantite-tetrahedrite antimonous), to essential antimonous (Ag-bearing Zn-tetrahedrite). Varying chemical composition manifested as mineralogical-geochemical zonation of the fahlores grains is caused by changes of physicochemical conditions of the ore forming process during the time.

Keywords

fahlore / mineralogical-geochemical zonation / physicochemical condition / Koupol deposit

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