Regularities of hydrocarbons accumulations in the Meso-Cenozoic complex of the Black Sea-Caspian region

Abstract

The article considers the regularities in the distribution of hydrocarbon accumulations in the Meso-Cenozoic complex of the Black Sea-Caspian region associated with the evolution of generation-accumulation systems developed in the plate cover of the region. The plate cover, as well as elements of the Mesozoic generationaccumulation systems, began to form in the structure of the Alpine structural-geodynamic systems. An analysis of the areal distribution of structural-geodynamic systems shows that the maximum development of sedimentary basins correlates with the transgressive Cretaceous period, which is characterized by the expansion of the areas of pre-existing basins and the emergence of new depocenters. In this case, two groups of basins are distinguished. The first includes the Karkinitsky, Bolshekavkazsky, West Kuban, Central and Tersko-Caspian basins. The second group includes depocenters Indolsky, East Kuban, Berdyansk, North Azov, West Stavropol, Gudilovsky, Ustyurtsky. The most significant events that determined the features of the evolution of generation-accumulation systems correlate with the latest time. Keywords: Black Sea - Caspian region; development of sedimentary basins; structural and geodynamic system; tectonic conditions; signs of oil and gas content.