THE ISOTOPIC COMPOSITION OF THE ICE, WATER AND CONDENSATE SODA LAKE DORONINSKOE (EASTERN TRANSBAIKALIA, RUSSIA) DUE TO THE FORMARION OF SALT DEPOSITS ON THE SURFACE OF ITS ICE COVER

摘要

On the ice surface Doroninskoe meromictic soda lake in Eastern Transbaikalia (51°14'08" N, 112°13'59" E, Altitude 780 m asl) is often at the beginning of winter in the snow-free period is deposited salt, the formation of which researchers explain the evaporation of the ice. As observations on putting labels, the ice at this time does not evaporate (daytime temperature -15-25℃, the night before the -30-35℃), a slight evaporation it is only possible in the spring (March-April). To clarify the possible nature of the salt deposits we have studied the isotopic composition of lake water, ice, condensate (frost) and dropped out of the lake snow. The sampling carried out in February and April 2011. Condensate collected at a height of 15 cm above the surface of the ice in insulated from outside air traps from plastic film. Clouding of the film due condensation occurs immediately after installing traps. In trap for overriding ice film moisture not condensed.