Abstract
The high-temperature (865°C according to data of an IR-camera) gases and the crater lake water of Gorelyi volcano were sampled in September 2011. The gas and condensate were collected from the active crater in bocca, which was formed in June 2010. The chemical composition and the δ18O and δD values of the condensate and lake water were analyzed. In comparison with the isotopic data on volcanic condensates of the adjacent Mutnovskii volcano, the data points of samples from Gorelyi volcano fall to the mixing line of meteoric and magmatic water. The isotopic characteristics of the water component of the fluid mostly correspond to the high-temperature equilibrium with silicate rocks or melts; the portion of local meteoric water is ~25%. The high metal content of gases of the volcano is determined. The total removal of Cu, Zn, Pb, Mo, Cd, In, Sn, Tl, and Bi by gases of Gorelyi volcano (~30 t/year) comparable to that of the Kudryavyi volcano (20–80 t/year) indicates the high ore-bearing capacity of the volcanic gas fluids.
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