Geology, geography and global energy

Scientific and Technical Journal

Tectonic nature of Central - Azov and the Canevo-Berezan dislocation systems

2017. 3, pp. 106-115

Popkov Vasiliy I. - D.Sc. in Geology and Mineralogy, Professor, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350049, Russian Federation,

Popkov Ivan V. - C.Sc. in Geology and Mineralogy, Associate Professor, Kuban State University, 149 Stavropolskaya st., Krasnodar, 350049, Russian Federation,

The largest structures of the Scythian plate are Azov and Kanevsky-Berezanskiy shafts. The Azov shaft is an elongated shaft-like uplift, buried beneath the axial part of the basin of the Azov Sea. In the form of a shallow arc bent in the north-north-west direction, it extends from the west to the east coast for a distance of more than 200 km and a width of up to 50. The continuation of the Azov shaft in the east is the Kanev-Berezanskiy shaft with a length of about 300 km. Like the Azov, and underlaid by a folded complex of Permo-Triassic. Together, they form a giant fold-thrust system, coinciding in plan with the buried early Kimmerian folded belt with a length of more than 500 km. From the north and north-east, the latter is associated with the Late Paleozoic marginal trough, performed by a powerful molasse complex. Despite the great depths of occurrence and the considerable catagenesis of the Paleozoic rocks, the Pre-Scythian marginal trough is promising for the exploration of oil and gas fields. In addition, sedimentary trough complexes can be considered as an additional, perhaps even basic, source of hydrocarbons for overlying traps in the Mesozoic-Cenozoic deposits, which increases their oil and gas potential. Of great interest is the slatted deflection wing, where significant oil and gas reserves can be concentrated in the sub-traction zone. The establishment of the buried Paleozoic Pre-Scythian trough introduces significant adjustments to the perspectives of the oil and gas potential of the region, since this allows us to speak of the appearance not only of a new direction of geological exploration, but also gives grounds for a more optimistic assessment of the prospects for the discovery in the pre-slate complex of the Azov Shaft and the Mesozoic-Cenozoic cover of relatively poorly studied Central and northern parts of the Azov Sea not only gas, but also oil deposits. The source of hydrocarbons can be the Paleozoic-Lower Mesozoic sediments that perform the Pre-Scythian deflection, which, due to their formational features and thermobaric conditions of occurrence of potentially oil and gas-bearing strata, could generate oil and gas.

Key words: , , , , , , folds, thrusts, folded belt, marginal trough, oil and gas, oil and gas potential prospects