Abstract

We present results of a comprehensive study of ground ice, saline waters, and brines in the cryoartesian basins of the northeastern Siberian Platform. The composition of major geochemical types of ground ice is considered. The specifics of the hydrogeochemical zonation of the cryoartesian basins are the regional distribution of chloride saline waters and brines. Study of stable isotopes (18O, D, 37Cl, 81Br, and 87Sr/86Sr) led us to the conclusion that the chloride brines resulted either from the leaching of halogen rocks or from the metamorphism of bittern connate water. The drainage brine reserves (hydromineral resources) of the Udachnaya kimberlite pipe in the Olenek cryoartesian basin are assessed.

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