Hydrochemical research of the development of karst in the Chusovsky cape in the area of influence of the reservoir

Abstract

The territory of the Chusovsky Cape belongs to the area of mainly gypsum and carbonate-gypsum karst. The Kama reservoir has a great influence on the hydrodynamic and hydrochemical situation. Karst processes are becoming more active. The thickness of the transitional hydrodynamic zone increases, which is manifested in an increase in the frequency of karst sinkholes. The high dissolving capacity of surface waters and groundwaters of the solikamsk and iren aquifers of the kungurian stage of the lower permian contributed to the development of a karst sinkhole in the village of Gorodishche (1991). Periodic observations of the chemical composition of groundwater and surface waters showed that the chemical composition is subject to fluctuations, the amount of sulfates increases from 1163mg / dm3 (2018) to 1403mg / dm3 (2021).