Magnetic susceptibility of volcanic ash: an evaluation in the Shinmoendake 2017-2018 eruption
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- Priyambodo Ekky Reno
- Tohoku University
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- Mujin Mayumi
- Tohoku University
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- Nakamura Michihiko
- Tohoku University
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- Sugaya Sarina
- Tohoku University
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- Toma Tomomori
- Tohoku University
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- Matsumoto Keiko
- Geological Survey of Japan, AIST
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- Takahashi Kazunori
- Oyo Corporation
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- Imura Ryusuke
- Kagoshima University
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- Shimano Taketo
- Tokoha University
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- Hiramine Hiroto
- Kajiki Junior High School
抄録
In volcanic rocks, amount of magnetite chiefly changes their magnetic susceptibility behavior. The modal composition of magnetite presumably decreases in post-magmatic processes such as high-temperature oxidation and hydrothermal alteration. This study suggests that magnetic susceptibility is a possible indicator to identify post-magmatic processes and increased proportion of juvenile components when a pure eruption magmatic phase is approaching, on condition that the modal compositions of magnetite phenocryst are constant.
収録刊行物
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- 日本鉱物科学会年会講演要旨集
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日本鉱物科学会年会講演要旨集 2018 (0), 5-, 2018
一般社団法人日本鉱物科学会
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詳細情報 詳細情報について
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- CRID
- 1390002184863410688
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- NII論文ID
- 130007786181
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可