Tectonics and petroleum potential of the Kazan-Kazhim aulacogen, East European Platform

摘要

The paper presents a new interpretation of the surface structure of the crystal basement of the Kazan-Kazhim aulacogen based on geological-geophysical data and reprocessed regional seismic profiles. It is shown that the formation of the Vyatka uplift is related to deep reverse thrusts and that tangential stresses were a major factor in the formation of the aulacogen. The presence of a large left-lateral strike-slip fault is established, which cuts the Kazan-Kazhim aulacogen from west to east. Our data confirm wide-spread horizontal movements occurred in the crust in the eastern part of the East European Platform and help to optimize hydrocarbon exploration in the region.