Vol 23, No 3 (2023)

The article discusses the issues concerning historical reconstruction of trade and transport system of the Golden Horde based on the data analysis with the use of geographic information systems, logistics modeling and interdisciplinary technologies.

The article presents the influence analysis of industrial enterprises of the Volgograd region on the state of atmospheric air in the region. The importance of solving the problem of greenhouse gas emissions into the atmosphere at the international level has been analyzed. Foreign experience in terms of reducing carbon dioxide emissions of industrial enterprises is considered. A method to reduce the environmental burden on atmospheric air by decarbonization, i.e. сarbon capture and storage of CO2 in deep geological objects is proposed.

Residential areas occupy a special place in the planning structure of the city. The building density and the number of floors of houses have an impact on the architectural appearance of the city and the concentration of the population. However, the high population density indicates a significant pressure on the natural framework. The main objective of this article is to show the differences and heterogeneity of population density within the residential area of the city of Belgorod. To accomplish this task, a methodology for determining the population density in the private sector and blocks of high-rise buildings was developed. Using statistical data, the population of all apartment buildings is plotted on the map of the city, then, the city is divided into polygons that make up the residential area. The article proposes a methodological approach that allows taking into account the heterogeneity of the residential area – the private sector and high-rise buildings. The availability of statistical information on the number of registered residents of apartment buildings and the average size of a household made it possible to complete the task with a high percentage of accuracy. The results of this study do not take into account the migration of temporarily registered residents, students from other cities, etc. The population of the city, determined during the study, was 333,692 people, which is less than the result of the 2020 census (339,978 people); the accuracy of the study is 98.15%. More likely, this inaccuracy is due to the lack (or untimely updating) of the statistical information on new buildings. As a result, maps of population density and population distribution were constructed. The city is divided into areas that stand out due to the heterogeneity of the urban environment and the dominant mode of settlement. Through the analysis of the cartographic material, the features of the concentration and resettlement of the population were revealed. The approximate number of the population of the private sector and the main areas of settlement has been calculated.

Based on new data on seismicity and materials from surveys of active faults, information was obtained on regional seismogenic structures of the European-African through tectonic belt. The kinematic characteristics of the faults that make up the through tectonic belt and earthquakes that occurred within these structures are given. An analysis of gravity anomalies based on satellite data suggests that the seismogenic structures of the European -African through tectonic belt have an ultra-deep penetration into the mantle, which determines their high seismic potential. This potential was manifested by catastrophic earthquakes in the Mediterranean-Caspian region on February 6, 2023. After the earthquakes on February 6, 2023,themigration of seismic activity in the northeast direction, in the area of the Caucasus fold structure and the East European platform, was noted.

The first representatives of Cameroptychium on the territory of Russia, which are established in the rocks of the Upper Cretaceous of the Volga region, are described. The labyrinthine structure of the skeleton and the modular, colonial level of organization of these sponges are considered, which is typical for many Late Cretaceous Hexactinellids. The widespread manifestation of isomorphism indicates the finiteness of the formation of representatives of Hexactinellida. The origin of Cameroptychium is correlated with Santonian Plocoscyphia.