Peculiarities of Tertiary petroleum systems evolution under prograding shelf environment on the continental margin of the East Siberian Sea

The upper part of the sedimentary cover within the East Siberian Sea shelf comprises Cenozoic clinoform deposits, which accumulated in passive continental margin settings. In the Eastern Arctic, the productivity of clinoform deposits has been proved on the Alaska North Slope and in the Beaufort–Mackenzie Basin. Considering that Cenozoic clinoform deposits are widely represented in the Russian part of the Eastern Arctic, they undoubtedly attract considerable interest from the standpoint of hydrocarbons prospecting. However, despite increasingly closer attention to this interval of the sedimentary section, it is still poorly understood due to its complicated geology. The lack of drilled wells in the region imposes a considerable limitation on an understanding of sedimentary basins development. In this situation, geophysical data become the primary source of information for building geologic models in the Russian sector of the Eastern Arctic. An assessment of hypothetical Cenozoic petroleum systems of the East Siberian Sea is the main objective of this paper. It is to be said research performed under high uncertainty of input data. The results obtained from basin analysis and numerical modeling indicate the possibility that an active petroleum system may exist in the Cenozoic sedimentary wedge of the East Siberian Sea. The outlook for the clinoform complex largely depends on the source rock maturity, i.e., higher prospects should be expected in areas where the prograding wedge has maximum thickness. Considering all factors (reservoir quality prediction, proximity to a hydrocarbon kitchen, timing), the Eocene–Oligocene part of the sedimentary section appears to offer the greatest promise within the study area. Here, predominantly oil accumulations may be expected at a depth of 2.5–3.5 km below sea bottom.

Structural features of the lower Permian salt-bearing series and the character of salt-tectogenesis manifestations in the Caspian Depression. Paper II

The article presents the analysis of the inner structure of the salt-bearing series within the Caspian Depression. Certain salt-bearing complexes of various ages, compositions and plastic properties are distinguished. Their structural relations and the features of salt-tectogenesis manifestation are evaluated. Up to the present no subsalt uplifts have been confirmed in the Russian sector of the Caspian Depression and no HC fields have been discovered. Therefore, any search for additional criteria for predicting the salt-bed structure from the character of salttectogenesis manifestation is conductive to predicting the zones of subsalt structure development over the Caspian Depression area.

Metaverse – how is it in Russian? About the Construction of the Russian sector of the Metaverse

The article from various angles examines the topic of the so-called "metaverse" that has suddenly become "fashionable". The authors raise the question of the origins, history, and the real degree of novelty of the term and the real objects and processes designated by it. They concluded that the qualitative novelty of the metaverse concept is somewhat exaggerated: it describes (reflects) only the next stage in the development of virtual simulations, or, in other words, web 3.0. At this level, complex spatial configurations of sensory interfaces become possible, but there is no complete immersion of a person into an imaginary (programmed) world: a person is aware of the virtual nature of the sensations offered to him. However, according to the authors, not such amusements, but opportunities, and prospects for the use of complex digital models in new economic and social processes are interesting. The authors raise the question of the possibility and necessity of developing the "Russian sector of the metaverse" and state their views on the ways of such development.

Assessment of sustainable development of the coastal zone of the Sea of Azov (Russian sector) based on an integral approach

Identification of patterns of formation of regional environmental and socio-economic problems in the system “society–nature” and on this basis—to ensure public safety and minimize the economic damage social infrastructure are the main objectives of the study. The object of research is the coastal zone of the Sea of Azov (Russian sector) The subject of the research is a comprehensive analysis of the factors of sustainable development of the coastal zones of the Azov Sea region (Russian sector) based on an integral approach. The paper considers methods for constructing a comprehensive risk analysis model for the coastal zones of the Azov Sea region (Russian sector), which should consider various influencing factors of coastal risks at the same time. The analysis of the main indicators of medical, social, and demographic processes in the selected reference areas of the Rostov region and the Krasnodar Territory of the coastal zone of the Azov Sea is carried out. A comparative assessment of the economic stability of the municipal districts of the Rostov region and the Krasnodar Territory has been carried out. The work used the software ArcGIS Pro (methods of multi-criteria spatial statistics), the DECERNS MCDA DE module (including a set of tools for multi-criteria analysis of decision-making). The study also used the ArcGIS multicriteria statistics similarity method, which relies on statistical tools to analyze the distribution of data and identify patterns (trends). The novelty of the proposed research is the application of the theory of complex risk analysis to analyze the sustainable development of the coastal zone and the choice of indicators that are key for this territory. The theoretical novelty of the research lies in the use of an interdisciplinary approach and a set of complementary methods from various sciences.

Assessment of sustainable development of the coastal zone of the Sea of Azov (Russian sector) based on an integral approach

Identification of patterns of formation of regional environmental and socio-economic problems in the system “society–nature” and on this basis—to ensure public safety and minimize the economic damage social infrastructure are the main objectives of the study. The object of research is the coastal zone of the Sea of Azov (Russian sector) The subject of the research is a comprehensive analysis of the factors of sustainable development of the coastal zones of the Azov Sea region (Russian sector) based on an integral approach. The paper considers methods for constructing a comprehensive risk analysis model for the coastal zones of the Azov Sea region (Russian sector), which should consider various influencing factors of coastal risks at the same time. The analysis of the main indicators of medical, social, and demographic processes in the selected reference areas of the Rostov region and the Krasnodar Territory of the coastal zone of the Azov Sea is carried out. A comparative assessment of the economic stability of the municipal districts of the Rostov region and the Krasnodar Territory has been carried out. The work used the software ArcGIS Pro (methods of multi-criteria spatial statistics), the DECERNS MCDA DE module (including a set of tools for multi-criteria analysis of decision-making). The study also used the ArcGIS multicriteria statistics similarity method, which relies on statistical tools to analyze the distribution of data and identify patterns (trends). The novelty of the proposed research is the application of the theory of complex risk analysis to analyze the sustainable development of the coastal zone and the choice of indicators that are key for this territory. The theoretical novelty of the research lies in the use of an interdisciplinary approach and a set of complementary methods from various sciences.