Geological position, geochemistry, and geodynamic formation environments of late givetian-early frasnian basalts in the central gornyi altai region
1151 The active continental margins (ACMs) represent one of the most illustrative examples of convergent boundaries between lithospheric plates. It is tradition ally believed that diverse magmatism of these struc tures is determined by successive dehydration of the subsided oceanic plate in response to the increasing depth of primary magma generation away from the edge of the continent, on the one hand, and the pecu liar structure and composition of the continental lithosphere, which are responsible for the specific composition of silica melts and crust–mantle interac tion, on the other [1 and others].