Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2016 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R6-P15
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Host: Japan Association of Mineralogical Sciences

R6: Plutonic rocks, volcanic rocks and subduction factory
The magmatic processes of the latest eruption of Hakusan Volcano
*Yuzuki Ibaraki, Susumu Umino
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Keywords: Hakusan Volcano, magmatic processes, magma mixing, reverse zoning, geothermometer
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Abstract
The latest volcanic products of Hakusan Volcano in 17th century were analyzed by microscopic observations of textures and by EPMA for mineral compositions. Broken phenocrysts and disequilibrium textures are  abundant such as resorbed quartz and olivine with reaction coronae of orthopyroxene. Bimodal and wide mineral compositions and eruptive temperatures indicate that magma mixing occurred only locally, resulted eruption of heterogeneous magma.
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© 2016 Japan Association of Mineralogical Sciences
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