Минеральные источники Янейтывисского месторождения минеральных подземных вод (Республика Коми)

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In the area of the Yaneytyvis deposit of mineral waters on the Chernov Ridge, three groups of springs with mineralization of 2.3–3.0 g/l and surface waters were tested. The mineral water deposit, the largest in terms of proven reserves in the Arctic zone of Russia, is not exploited. The mineral waters of the springs of the subcryogenic Lower Carboniferous aquifer complex are weakly alkaline, low-mineralized, calcium-sodium chloride. A change in the anionic composition of the waters (a decrease in the proportion of sulfate ion) was established with a constant Cl Ca hydrochemical type. The first data were obtained on the isotopic composition of the mineral waters of the Yaneytyvis springs (D –111.9...–109.2 ‰ (SMOW), 18O –15.78...–15.15 ‰ (SMOW), values are close to the thermomineral waters of the springs on the Pymvashor River on the Chernyshev Ridge. Various types of water participate in the formation of the composition of the mineral waters of the springs: fresh waters of modern atmospheric precipitation formed in cold climates and melt waters from degrading permafrost, as well as salty chloride-sodium waters of marine (mixed) genesis of the aquifer complex of carbonate deposits of the Lower Carboniferous. Surface waters of the Bolshezemelskaya tundra in the area of the springs have a diverse composition (HCO3 Ca–Mg, HCO3–Cl Ca–Na, Cl Na–Ca, Cl–HCO3 Mg), their pollution with microelements of natural and technogenic origin has been established.