The cyclicity of the organic matter accumulation and the stages of oil generation in the Cenozoic deposits of Azov-Kuban petroleum basin
The article discusses the regularities of distribution and composition of dispersed organic matter and its bituminous components in the Cenozoic sediments of the Azov-Kuban Petroleum Basin. The generalization, analysis and interpretation of the data obtained showed that availability and distribution of organic material in the Cenozoic sediments of the Azov-Kuban Petroleum Basin are caused by transgressive-regressive sedimentation cycles (both macro- and micro cycles). The availability, group and structural-group composition of the organic matter bitumen components reflect the effect of multiple geological and other factors in the process of the rocks dipping into diagenesis and katagenesis zones, thus allowing to use the specific characteristics of the identified genetic types of chloroform bituminous components for the reconstruction of the geological history of Azov-Kuban Petroleum Basin development. As a result, generalization and analysis of all geological, geochemical and geothermal materials, obtained during the whole period of oil and gas exploration activity, made it possible to identify the large stages of oil generation in the Cenozoic sediments of Azov-Kuban Petroleum Basin.