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CHANGES IN CHEMICAL COMPOSITION OF NATURAL WATERS IN KARST CAVES

: The work considers information about features of changing the composition of natural waters in the karst Proschalnaya Cave (Far East). It has been shown that the amount and seasonality of surface water infiltration, its inter-action with rocks, presence of organic substances, biogeochemical processes of formation of sinter formations (speleo-them) and its subsequent dissolution affect the chemical composition of the internal watercourse. During intense water exchange with the external environment, karst waters can affect the chemical composition of river waters.