The Cyclicity of Organic-Matter Accumulation in the Cenozoic Deposits of the Azov-Kuban Petroleum Basin

Synthesis, analysis, and interpretation of the data on the distribution of organic material in the Cenozoic sediments of the Azov-Kuban Petroleum Basin have shown that this distribution is caused by transgressive-regressive sedimentation cycles. Within the Cenozoic sedimentation megacycle, several transgressive-regressive sedimentation cycles and subcycles can be distinguished. Transgressive subcycles are associated with the expansion and deepening of the basin. Based on the geochemical data, the beginning of a new transgressive-regressive subcycle is associated with an increase in the organic matter content of the rocks, suggesting the good petroleum potential of the region.