Compositional trends of amphibole in 2001-2003 Young Shiveluch andesites as evidence of magma chamber replenishment and subsequent convection

Gorbach, N., Portnyagin, Maxim and Philosofova, N. (2016) Compositional trends of amphibole in 2001-2003 Young Shiveluch andesites as evidence of magma chamber replenishment and subsequent convection Abstract volume 9th Biennial Workshop on Japan-Kamchatka-Alaska Subduction Processes (JKASP 2016). University of Alaska Fairbanks, Geophysical Institute, Fairbanks, pp. 66-67.

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Abstract

Hornblende-plagioclase andesites of the Young Shiveluch volcano erupted from 2001 to 2013 show minor variations of whole rock and matrix glass compositions but large variations of mineral phenocryst compositions. We focused this work on the composition of amphiboles in andesites from the growing Shiveluch lava dome, pumiсeous rocks from pyroclastic flows and rare mafic inclusions. We propose that the shallow magma chamber was replenished during this time that enhances magma convection and caused more frequent eruptions...

Document Type: Book chapter
Keywords: Amphibole, compositional trends, Shiveluch andesite, subsequent convection, magma chamber replenishment
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
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Date Deposited: 14 Dec 2016 07:47
Last Modified: 14 Dec 2016 07:47
URI: http://eprints.uni-kiel.de/id/eprint/34582

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