Probabilistic-deterministic gravity models of the central type structures in the Russian Far East

As a result of the tectonic and metallogenichesky analysis of the probabilistic-deterministic gravity models reflecting rheological properties of geological mdia in the territory of the Far East region of Russia structures of the central type (SCT) of four hierarchical levels: 1) - plumes, 2) - regional South-Sikhote-Alin, 3) - Dalnegorsk, Belogorsky magmatic dome structures, 4) - subvolcanic intrusion in the Sabolin ore area are characterized in 3D space. SCT of different taxonomical levels are characterized by identical concentric zonality of anomalies of density contrast and the areas of an ore mineralization corresponding to them. On the basis of coincidence of ore areas to deep anomalies of density contrast the model of metallogenic zonality of the crust in which probable fluid and magmatic sources of tin fields lie at a depth of 2-6 km, tin-polymetallic in the range of depths of 4-12 km, polymetallic 6-20 km, and gold-tungsten - 14-24 km is developed. In the plume heads of the deepest level of generation of a gold-molybdate and copper mineralization locates in the asthenosphere at depths below 70 km. The second level at depths of 40-50 km corresponds to a viscous subcrustal layer of the upper mantle where there is an accumulation and redistribution of ore concentration of Au, Mo, Cu, Pb and Zn. The third level of fluid-magma-generation in the range of depths of 10-20 km represents a zone of the increased concentration of crustal magmatic centers - sources of the granitoid magmas bearing the widest range of an ore mineralization (Au-Mo, Au-Ag, Cu-Mo-Au, Au-Pb-Zn, Au-W, W, W-Sn, Sn, Au-Sb, Sb).