Features of formation of geoecological risks in the mountainous territory based on the analysis of cause-and-effect relations of geodynamic endogenous and exogenous processes

Abstract

Relevance. The aim of the paper was to review hazardous geological processes of various nature in the mountainous region of North Ossetia and to select a priority research area. The problem of assessing the peculiarities of hazardous geo-ecological processes on the basis of the relationship between geodynamic endogenous and exogenous phenomena is characterized by its relevance. In this connection the influence of endogenous processes on the formation of the current state of the mountain region was studied. Methods. To solve the task we analyzed the previously conducted studies. The level of impact of endogenous and exogenous geodynamic processes on the geoecological environment is characterized by the development of genetic types of Quaternary formations forming the centers of hazardous geological processes. Geodynamic processes are manifested in the form of anomalous deviations of geophysical, electromagnetic, geochemical fields and other characteristics of the mountain environment, caused by the fact and level of impact on it. Results. It was established that geological changes in the environment are caused by neotectonics of fracture type in the zones of active deep faults due to uneven uplift of some parts of the territory, which causes stress-strain state of the environment, concentration of gravitational energy and destruction of bedrock of glacial zones. It is shown that physical, mechanical and geochemical fields, as integral signs-indicators of hazardous geodynamic processes, have a determining influence on the state of rocks, forming the modern weathering crust, and causing intensive accumulation of Quaternary sediments.