THERMAL SPRING AT THE POLE OF COLD (Eastern Yakutia)
V.N. Makarov, V.B. Spektor
Melnikov Permafrost Institute, SB RAS, Merzlotnaya str. 36, Yakutsk, 677010, Russia
Keywords: Hydrogeochemistry, isotopes, Sytygan-Sylba Spring, permafrost, trace elements, rare earth elements, Northeast of Yakutia, thermal waters
Abstract
The work reports on new data on geochemistry of water of the Sytygan-Sylba Thermal Spring located in the permafrost zone in the northeast of Yakutia. Data on the content of rare and trace elements, elements of a rare-earth group, oxygen and hydrogen isotopes in the studied waters have been obtained for the first time. Groundwaters of the spring are classified as low-mineralized siliceous thermal waters of the deep origin, which are seasonally fed due to the inflow of more mineralized suprapermafrost waters. The year-round activity of the thermal spring in the zone of continuous permafrost 300-500 m thick is associated with the significant heat flow in the anomalous mantle uplift zone. Geochemical signs of the thermal water of the spring involve an increased concentration of sulfates, anomalous contents of Ge, Mo, W, As and other elements, which may be indicators of halo waters and proximity of ore accumulations.
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