Издатель: CRC Press , Место издания: London , Год издания: 2010

This study deals with the genesis of contrasting thermal water types from active volcanoes. The objects of our study are volcanic springs from the Kamchatka and Kuril islands (Russia). The results of hydrochemistry, geophysical study and physicochemical modeling show that contrasting types of thermal waters can be originated from a single magmatogene fluid. The geometrical zoning of the thermal subsurface zone has been obtained and phase barriers were located using frequency electric sounding. We developed a new software package which allows us to take into account the dynamics of thermo-physical and chemical parameters. The obtained results show that the occurrence of phase barriers on the pathways of ascending fluids represents the decisive factor controlling variations in thermal springs composition.