Home – Home – Jornals – Russian Geology and Geophysics 2006 number 3

The problem of the dimensions and boundaries of porphyry Cu-Mo ore association is discussed in terms of the genesis and occurrence of ore-forming porphyry magmatism, geochemistry and zoning of mineralization, and geologic and physicochemical conditions of ore-metasomatic processes. With regard to the common Cu-Mo composition of deposits (though essentially copper and essentially molybdenum deposits were also considered) and their intimate relationship with granitoid porphyry intrusions (of both deep-level basaltoid and shallow-depth genesis in a relatively open environment), all porphyry Cu-Mo deposits can be united into a single porphyry Cu-Mo association, which is subdivided into porphyry Cu, porphyry Mo-Cu, porphyry Cu-Mo, and porphyry Mo types. Defining the boundaries of ore association requires analysis of all products of a porphyry Cu-Mo ore-magmatic system with regard to the common zoning of produced mineralization: Fe-Mo (Cu)-Cu (Mo)-Cu (Au)-Fe (Au)-Pb, Zn-Au (Ag).