On certain issues related to the place of lithodynamic processes in the general classification of geologic hazards and phenomena

Abstract

The article addresses issues related to the study of lithodynamic processes on the shelf as dangerous phenomena. On the example of the coastal zones of South Sakhalin where hazardous exogenous processes on the shelf are state-monitored, it is shown that an annual redistribution of bottom sediment accumulation and erosion zones occurs within the identified key areas. Other examples from the practice of similar works in the Gulf of Finland of the Baltic Sea indicate that lithodynamic processes in the coastal zone lead to a significant disturbance of the coast, which poses a specific danger to the population. It is concluded that lithodynamic processes should be studied via standard lithological and geophysical methods used in marine geological work.