LATE RIPHEAN PLAGIOGRANITES OF KUZNETSKII ALATAU: COMPOSITION, AGE, AND SOURCES

Abstract

The geological–petrographic, petrogeochemical, geochronological, and isotopic–geochemical data obtained during recent decades in Kuznetskii Alatau and Gornaya Shoria on igneous rocks confined to Early Caledonian structures of the western Altai–Sayan mobile belt, as well as the analysis of stratigraphic materials, show that these regions are characterized by an intricate tectonic structure and development of igneous rocks ranging in age from the Late Precambrian to Early Mesozoic.