CIS-YENISEI SEDIMENTARY BASIN: SEISMOGEOLOGICAL MODEL AND GEODYNAMIC EVOLUTION
Yu.F. Filippov
A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, pr. Akademika Koptyuga 3, Novosibirsk, 630090, Russia
Keywords: Upper Proterozoic and Paleozoic complexes, geodynamic reconstructions, Cis-Yenisei sedimentary basin, West Siberia
Abstract
Results of regional seismic exploration and drilling testify to the occurrence of moderately dislocated thick Upper Proterozoic and Lower Paleozoic deposits of subplatform type west of the Yenisei River. The deposits are buried beneath the Meso-Cenozoic sedimentary cover in the east of the West Siberian geosyneclise and form the Cis-Yenisei sedimentary basin. A comprehensive analysis of the new geological and geophysical data has refined the seismogeological model of sedimentary complexes, including 2D sections, structural and geological maps, and tectonic scheme. The Neoproterozoic and Paleozoic geodynamic evolution of the western margin of the Siberian craton is discussed.
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