Magmatic centers with Cu-Mo-porphyry mineralization of the Central-Asian mobile belt (by the example of Siberia and Mongolia)

In the Central-Asian mobile belt, Cu-Mo-porphyry mineralization developed i n several cycles (in the Caledonian, Hercynian, and Mesozoic). The deposits occur in the centers of repeated magmatic activity confined to the transre gional volcanoplutonic belts. Ore-bearing porphyry complexes terminate magm atism of the tectonic cycles and occur in postcollisional (rift-related) ge odynamic settings, inheriting, to a certain degree, the petrogeochemical fe atures of preceding collisional and subductional magmatism. During the formation of the magmatic centers, the rock assemblages and thei r geochemical features changed in the Paleozoic-Mesozoic, which is related, on the one hand, to the influence of the continental crust and, on the oth er hand, to the increase in the depth of the mantle source.