Geology, geography and global energy

Scientific and Technical Journal

REGIONAL PROCESSES OF FORMATION OF THE COMPLEXES WITHIN AZOV-KUBAN BASIN

2019. №2, pp. 35-39

Glebova Lyubov V. - Ph. D. in Geology and Mineralogy, Senior Lecturer, Lomonosov Moscow State University, lvglebova@mail.ru

Lider Anastasiya V. - undergraduate, Lomonosov Moscow State University, na5432@mail.ru

The terrigenous-carbonate formation of the Triassic age is developed in the western part of the East Kuban sub-basin and in most of the Western Kuban. The formation is represented and characterized mainly by the sapropelic-humic type of organic matter (OM). The length of stay of the Triassic rocks in the main oil generation zone, in the catagenesis interval with a critical paleotemperature of 160 В°C, is from 30 to 40 million years. Early Cretaceous is the beginning of the catagenetic transformation of OM within the basin. The West Kuban and East Kuban sub-basins correspond to the accepted pattern of vertical zoning of sedimentation and belong to the main phase of OM generation. The completion of sedimentation processes in the East Kuban and West Kuban sub-basins was accompanied by the active emigration of sedimentation water. The main phase, which lasted until the late Jurassic, ensured the maximum extraction of fluids from the rocks. Terrigenous formations are represented by clay deposits of the Lower Cretaceous - humic and humus-sapropelic OM. The main foci of oil and gas generation in the Upper Jurassic formations, genetically related to the areas of the greatest velocities and amplitudes of subsidence, are the zones of subsidence in the southern part of the Western Kuban depression.

Key words: Азово-Кубанский бассейн, тектоника района, литология, стратиграфия, терригенная формация, нефтегазоносные комплексы, рифтогенез, мегантиклинорий, кристаллический щит, трансгрессивное залегание, водоносные комплексы, катагенетические преобразования, Azov-K

Read