SOURCES OF ORE-FORMING FLUID IN FUMAROLES OF KUDRYAVYI VOLCANO, KURIL ISLANDS: PB ISOTOPIC COMPOSITION OF GAS CONDENSATES AND SUBLIMATE MINERALS

Abstract

Kudryavyi Volcano is an example of the modern ore-forming system related to island-arc andesite volcanism. A direct study of high-temperature gas–hydrothermal process in the volcanic edifice is of fundamental significance for understanding the formation conditions of ore deposits in the modern recycling zones of the oceanic crust. This research was aimed at determining the sources of ore matter during formation of polymetal mineralization on the fumarole fields of Kudryavyi Volcano.