Age of Ichinsky and Khangar stratovolcanoes (Sredinny range, Kamchatka)

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Abstract

K-Ar isotopic age of the beginning of formation of Ichinsky (0,35 Ma) and Khangar (0,4 Ma) stratovolcanoes is established for the first time, as well as the age of the final stage of activity of the Lauchan Ridge (about 0,9 Ma) in the Sredinny Range of Kamchatka. Probably the formation of the studied volcanoes may be caused by the generation of the new deep NNE fault within the Sredinny Range of Kamchatka, which in turn was connected to the regional reasons of the increasing endogenous activity at the North-West Pacific.

About the authors

M. M. Pevzner

Geological Institute of the Russian Academy of Sciences

Author for correspondence.
Email: m_pevzner@mail.ru
Russian Federation, 7, Pyzhevsky lane, Moscow, 119017

V. A. Lebedev

Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences

Email: m_pevzner@mail.ru
Russian Federation, 35, Staromonetny, Moscow, 119017

A. O. Volynets

Institute of Volcanology and Seismology, Far Eastern Division of the Russian Academy of Sciences

Email: m_pevzner@mail.ru
Russian Federation, 9, Piip avenue, Petropavlovsk-Kamchatsky, 683006

Yu. A. Kostitsin

Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences

Email: m_pevzner@mail.ru

Academician of the RAS

Russian Federation, 19, Kosygin street, Moscow, 119991

A. D. Babansky

Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences

Email: m_pevzner@mail.ru

Academician of the Russian Academy of Sciences

Russian Federation, 19, Kosygin street, Moscow, 119991

M. L. Tolstykh

Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences

Email: m_pevzner@mail.ru
Russian Federation, 35, Staromonetny, Moscow, 119017

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