Geodynamic Positions of Large and Superlarge Precious-Metal and Uranium-Ore Districts and Clusters in East Asia

Resumo

The geophysical, sesimotomographic, and mineragenic data unraveling the regularities of the distribution of large and superlarge precious-metal and uranium-ore clusters in southeastern Russia, eastern Mongolia, and northern China are analyzed. It is shown that the fact that ore clusters and districts of global class are located above the perimeter of the oceanic slab, stagnated in the transitional zone of the mantle, were probably predetermined by the concentration of lower mantle fluid-thermal flows at the frontal boundary of the slab and in its flanks represented by sublatitudinal paleotransform faults.