Main Features if the Paleogography and Paleogeodynamics of Hne Vendian Kolchim Uplift

Abstract

The results of a study of the material composition of the Vendian deposits within the Kolchim uplift. For the first time, an attempt has been made at paleoclimatic reconstruction, which is based on the composition of clay material, where the main role is assigned to illite. This allows us to conclude that the climate of the epoch is close to the nival type with a predominance of physical weathering over chemical. Rock studies also confirm that the Vendian deposits consist of the products of erosion of the underlying sediments of the Upper Riphean formations, as well as granitoids and gneisses, the source of which are uplifts of the Timan with outcrops of rocks of the crystalline basement of the Russian Plate. A series of discrimination diagrams were used to determine the geodynamic nature