Geomorphological indicators of tectonic structure of the «covered» plain at the South Volga-Ural interfluve (with view to oil and gas prospects)

Abstract

Comparison of geomorphological and geophysical data proved both small–local–and large–linear and areal–morphostructures to reflect not only neotectonic structures but some tectonic features due to basement's differentiation into blocks and intense salt tectogenesis. Distribution of small morphostructures differing in degree of neotectonie activity appeared to be controlled by large regional morphostructures: active small morphostructures are mostly restricted to most evelated large ones.