MESOZOIC-CENOZOIC GEOLOGICAL HYSTORY OF THE NORTH OF WESTERN AND EASTERN SIBERIA BASED ON THE SEISMIC DATA ANALYSIS
The article presents the results of combined interpretation of drilling and new seismic data that allowed to describe geological and geodynamical evolution of the region comprising the northeastern part of West-Siberian and the western part of Yenisei-Khatanga basins starting with the Late Permian times. A series of paleo-reconstructions is performed to show the principal stages in evolution of the investigated region and influence of the events in the adjacent regions on this evolution. The Permian -Early Triassic phase of the rifting activity is substantiated. Compression periods responsible for development of inversion structures have been determined, including the mid-Triassic period associated with compression in the Turukhansk-Norilsk area of the Siberian platform, the Jurassic-Cretaceous period contemporaneous with orogenesis in the Verkhoyansk-Chukotka and Mongol-Okhotsk areas and the final Cenozoic compression period, its mechanism, however, still being subject to discussion.