Structural Evolution of the Eastern Margin of Eurasia in Late Mesozoic and Cenozoic

1IntroductionThe south of the Far East comprises the largest mountain-folded and platform structures in the east-ern margin of Eurasia. The former ones are the Stanovoy, Yankan-Tukuringra-Dzhagdy, Turan, Bu-reya, Amur-Tugur and Sikhote-Alin arched and arched-block uplifts separated by the systems of in-termontane depressions (Tynda-Zeya, Khingan-Ni-man, etc.) with the inner small basins (Uda-Zeya, Upper Bureya, Mid-Amur, Konino-Khurmulinskiy, Lower Amur) (Fig.1). The Aldan shield a…

Structural Evolution of the Eastern Margin of Eurasia in Late Mesozoic and Cenozoic

This paper features the structural evolution of the eastern margin of Eurasia in Late Mesozoic and Cenozoic. It is characterized by three stages of development: the riftogenic stage (Jurassic-Early Cretaceous), the platform stage (Late Cretaceous) and the neotectonic one (Paleogene-Quarternary). The boundaries between these stages are distinctly fixed by the geological time limits of planetary range. It is demonstrated that the riftogenic and neotectonic stages were characterized by a high degree of geodynamic activity, and the platform one by a decrease in contrast of tectonic movements. The main river net was formed in the Early Cretaceous and in the Neogene. It experienced a serious reconstruction accompanied by the formation of the Amur River valley being similar to the modern one.