Mesoproterozoic Granitoid Magmatism in the Trans-Angara Segment of the Yenisei Range: U-Pb Evidence

摘要

Marginal parts of cratons yield valuable information on the evolution of the lithosphere, which is controlled by different geodynamic processes. This explains the interest in problems of reconstruction and development of accretionary-collisional continental structures at craton margins [1]. The Yenisei Range representing a fold-thrust belt in the southwestern margin of the North Asian Craton is geodynamically one of the most interesting regions of Siberia. Its Trans-Angara segment hosts widespread Proterozoic substantially metasedimentary rocks of the Tei Group.