Principal Issues Surrounding Trap Magmatism of the Siberian Platform

摘要: The Noril’sk region has a special place in the basalt field of Siberian Platform. It is characterized by complex geodynamic environment, most entire sequence volcanogenic succession, great variety hypabyssal intrusions varying composition, and with different degree differentiation. In this region, Noril’sky-type layered related largest sulfide Pt–Cu–Ni Pt low-sulfide deposits such as Oktyabrsky, Talnakh, Noril’sk-I are located. Geological investigations carried out over many decades, but spite this, main problems to origin intrusions, ore still relevant. Sect. 1.1, features geological setting magmatism northwest Platform described. A deal attention drawn Trap formation. 1.2, present notions geologists about composition parental magma Traps, their chamber differentiation, high-magnesian pegmatoids, ores considered. connection these matters, short review published experimental data differentiation crystallization silicate liquids, well petrogenesis formation that form basis for genetic models, given.