Geophysical Journal | 2008 volume 30 4

Alpine magmatism of the south-western margin of the Eurasian continent

© Z.M. Lyashkevich

The description of the volcano-plutonic complexes of the south-western margin of Eurasia from Triassic up to nowadays is given: the Carpathians, the Pannonian depression, the Balkans, Northern Dobrogea, the Predobrogean deep, the Crimea. Using the mobilistic conception and magmatic indicators it was possible to demonstrate geodynamic regimes of five age periods: 210, 160, 90, 20 and 10 million years. They are correlated with the overall paleogeodynamic situation of the Eurasian continent based on the models of paleogeographic maps. It was concluded that in the course of the 250 million years the south-western part of Eurasia developed as an active continental borderland. Four types of geodynamic regimes were distinguished: in the Triassic - destruction, riftogenesis; in the Upper Cretaceous - subduction; in the Miocene - collision; in the Pliocene-Pleistocene - intrusion of plumes of the mantle substance in the from of "hot points".

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