Strike-Slip Fault Displacement of the Orogenic Megadomes and Directional Zoning of the Ore Magmatic Systems in Mongol-Transbaikal Area

摘要

The tectonic types and metallogenic zoning of the large orogenic morpho-structures named megadomes were explored by many geologists (Tomson, Kochneva, 1969, 1977; Fogelman, 1968; Komarov, Zamsran, 1989;). Usually it was considered that the tectonic evolution of the megadomes was not accompaned by the changing of their initial placement within the moving belt. The features of the lateral "longitudinal flow" of the blocks, terrains and other tectonic fragments in the folded belts have been found later (Suvorov, 1989; Khain, 1988; Parfenov, Popeko, Tomurtogoo, 1999). The modern data of the geology of Eastern Zabaykalye also prove the essential importance of the longitudinal displacements in the process of the formation of the orogenic structures (Rutshtein, 2003; Rutshtein, 1998). In this report, we consider the connection of some elements of the ore-magmatic zoning with syn-ore tectonic displacements of the big orogenic structures.