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Relationship between Kamen Volcano and the Klyuchevskaya group of volcanoes (Kamchatka)

Churikova Tatiana G., Gordeychik Boris N., Ivanov Boris V., Wörner Gerhard (2013) Relationship between Kamen Volcano and the Klyuchevskaya group of volcanoes (Kamchatka) // Journal of Volcanology and Geothermal Research. Vol. 263, pp. 3 - 21. doi: 10.1016/j.jvolgeores.2013.01.019.

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

Abstract Data on the geology, petrography, mineralogy, and geochemistry of rocks from Kamen Volcano (Central Kamchatka Depression) are presented and compared with rocks from the neighbouring active volcanoes. The rocks from Kamen and Ploskie Sopky volcanoes differ systematically in major elemental and mineral compositions and could not have been produced from the same primary melts. The compositional trends of Kamen stratovolcano lavas and dikes are clearly distinct from those of Klyuchevskoy lavas in all major and trace element diagrams as well as in mineral composition. However, lavas of the monogenetic cones on the southwestern slope of Kamen Volcano are similar to the moderately high-Mg basalts from Klyuchevskoy and may have been derived from the same primary melts. This means that the monogenetic cones of Kamen Volcano represent the feeding magma for Klyuchevskoy Volcano. Rocks from Kamen stratovolcano and Bezymianny form a common trend on all major element diagrams, indicating their genetic proximity. This suggests that Bezymianny Volcano inherited the feeding magma system of extinct Kamen Volcano. The observed geochemical diversity of rocks from the Klyuchevskaya group of volcanoes can be explained as the result of both gradual depletion over time of the mantle N-MORB-type source due to the intense previous magmatic events in this area, and the addition of distinct fluids to this mantle source.
Item Type: Article
Title: Relationship between Kamen Volcano and the Klyuchevskaya group of volcanoes (Kamchatka)
Language: English
Journal or Publication Title: Journal of Volcanology and Geothermal Research
ISSN Print: 0377-0273
Uncontrolled Keywords: Klyuchevskoy Volcano, Bezymianny Volcano, Kamen Volcano, Subduction, Geochemistry, Fractional crystallization
Subjects: State scientific and technical information rubricator (ГРНТИ) > 38 ГЕОЛОГИЯ > 38.37 Петрография > 38.37.25 Вулканология
Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > Kamen
Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > Bezymianny
Volcanoes > 1 Volcanoes of the Kurile-Kamchatka Region > 1.1 Kamchatka > Klyuchevskoy
Additional Information: Magma System Response to Edifice Collapse
Depositing User: И.М. Романова
Date Deposited: 17 Dec 2015 06:18
Last Modified: 17 Dec 2015 06:18
URI: http://repo.kscnet.ru/id/eprint/2542

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