Abstract

The article discusses formation conditions of sedimentary basins in the Black Sea–Caspian region. The system of basin-like structures includes three mega basins—Precaspian, Mysian and Aegean, and two large basin systems—Scythian–Turan and Black Sea–South Caspian. In the Paleogene–Neogene, shaping of sedimentary basins was connected with the formation of a foredeep ahead of the front of the Greater Caucasus folding. The longitudinal strike of the belt of the basin-like structures in the north of the region under consideration obeys the general strike of the zone of interaction between the Greater Caucasus folding orogeny and the Scythian Platform, which points at the dominating, at least, in the center, submeridional vectors of the regional stresses responsible for the formation of the piedmont mega basin. Farther from the mountains and toward the platform, the basin-like structures in the study region degrade, and sedimentation in the platform area, where sedimentation is geologically possible, occurs not like a basin but like a mantle.

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