GEOLOGICAL BACKGROUND OF CONCENTRIC STRUCTURES OF EASTERN UZBEKISTAN

The relevance of the topic is determined by the development of the spatial distribution of earthquake foci in different morphogenetic types of concentric structures (CS) and due to the need to study the structure of the Earth's crust and upper mantle in Uzbekistan. Our republic is one of the highly seismic regions of Central Asia, characterized by a complex geological and tectonic structure. So far, seismicity and seismic activity of Uzbekistan have been studied using geological-geomorphological, geophysical and seismological methods. Based on the obtained geological and geophysical results, seismic zoning and forecasting of earthquake sites have been carried out. At the same time, the links between earthquake centers with concentric structures (CS) and their geodynamic characteristics were not considered. Cosmo-photo-geological information for identification of lineaments and concentric structures, their analysis, connection with seismic activity of Uzbekistan territory was not widely used. Therefore, there appeared a need for more detailed study of CSs and their connection with seismic activity. The geological and tectonic structure of regions is studied by various geological and geophysical methods. Recently, a remote method has been introduced into the practice of studying the structure and geodynamics of the Earth's crust.