TRANSFORMATION OF COMPOSITION, STRUCTURE AND PROPERTIES OF ANDESITES AND BASALTS OF KOSHELEVO VOLCANO (SOUTHERN KAMCHATKA) CAUSED BY HYDROTHERMAL pROCESSES: ExpERIMENTAL STuDIES IN natural CONDITIONS
The results of longstanding (up to the year) natural experiments that concern with changing of composition, structure, physical and physico-mechanical properties of volcanogenic rocks (andesites and basalts) caused by hydrothermal processes (thermal liquids with different composition, temperature, pH ) across the Lower-Koshelevo thermal zone are shown.