The trace element composition of small rivers of glacial origin on the example of Terskol River

The article presents data on the microelement composition of waters of the river Terskol over the 5-year period (2012 – 2016). A comparative analysis including other small rivers originating from the Elbrus glaciers (the rivers Azau and Garabashi) and other glaciers (rivers Donguz-Orun and Adylsu with tributaries) was done. Some mechanisms of the formation of water microelement composition in the high mountain zone of KBR have been revealed: the enrichment by molybdenum is due to the groundwater; the high content of copper and zinc is associated with natural geochemical anomaly; differences in concentrations of trace elements between the period of maximum snow melting and the maximum melting of glaciers is not revealed.