Dynamics of near-surface structures of Ural area in Upper Perm-Triassic time and tectonic division of crystal crust of the West Siberian geosyneclise

Abstract

The provision of early mesozoic grabens (rifts) filled with terrigenous deposits and basalts of the Triassic in tectonic volume model of crystal crust is considered. Taking into account the similar analysis on the Upper Paleozoic granitization and arrangement of fields of hydrocarbons, which were made earlier, the causation of tectonics and magmatism with a deep structure of upper part of a lithosphere of Uural area of the West Siberian geosyneclise is emphasized. The common source of these phenomena caused by joint activity of a deep underearth in a Upper Permian-Triassic stage of development of the studied geological environment is offered.

Keywords

• земная кора
• нижнемезозойские грабены
• гранитизация
• нефтегазоперспективность
• crust
• lower mesozoic grabens
• granitization
• oil and gas prospects