Coupling Of Late Cenozoic Faulting Of The Siberian Platform Margin And Baikal Rifting

摘要

The relationship between the Late Cenozoic tectonic deformations at the Siberian Platform (SP) margin and the adjacent Baikal Rift System is considered. This study was aimed at estimation of the stress state and conditions of neotectonic reactivation of faults in the sedimentary cover of the eastern Irkutsk Amphitheater (the Angara-Lena Uplift and Fore-Baikal Trough coupling zone). On the basis of geological, structural, and geomorphic methods, the Late Cenozoic fault assemblages were investigated and the related stress field was reconstructed to provide evidence for interrelated deformation of the Baikal Rift and the SP margin.