2009 Fiscal Year Final Research Report
Research on structure of volcanic field and related magma activity for understanding preparing process of caldera eruptions
| Project/Area Number |
19310116
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Natural disaster science
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| Research Institution | Kyoto University |
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Principal Investigator |
KAGIYAMA Tsuneomi Kyoto University, 大学院・理学研究科, 教授 (50126025)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEMURA Keiji 京都大学, 大学院・理学研究科, 教授 (00201608)
OHSAWA Shinji 京都大学, 大学院・理学研究科, 教授 (30243009)
KANDA Wataru 京都大学, 防災研究所, 助教 (00301755)
KOYAMA Takao 東京大学, 地震研究所, 助教 (00359192)
AOKI Yosuke 東京大学, 地震研究所, 助教 (90376624)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 火山噴火 / カルデラ / 地下構造 / 大規模噴火 / 地熱活動 / 電磁気構造 |
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| Research Abstract |
This research proposed large volcanic eruptions such as forming caldera are prepared in 'Geothermal activity Dominant volcanoes', because magma stagnates beneath volcanoes and maintains geothermal activity. Magma degassing is one of the important factors to control magma stagnation, and found significant wide area of high conductive zone around GD volcanoes. Analysis of chemical components and isotopic data of hot springs detected dehydrated fluid from subducting oceanic plate, indicating magmatic contribution.
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Research Products
(37 results)
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[Journal Article] Color change of lake water at the active crater lake of Aso volcano, Yudamari, Japan : is it in response to change in water quality induced by volcanic activity?2010
Author(s)
Ohsawa S., Saito T., Yoshikawa S., Mawatari H., Yamada M., Amita K., Takamatsu N., Sudo Y., Kagiyama T.
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Journal Title
Limnology 11
Pages: 207-215
Peer Reviewed
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[Journal Article] A preparation zone for volcanic explosions beneath Naka-dake crater, Aso volcano2008
Author(s)
Kanda, W., Tanaka, Y., Utsugi, M., Takakura, S., Hashimoto, T.
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Journal Title
J.Volcanol. Geotherm. Res. 178
Pages: 32-45
Peer Reviewed
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[Presentation] 九重硫黄山周辺の浅部比抵抗構造2009
Author(s)
神田径, 宇津木充, 田中良和, 岡田靖章, 井上寛之, 小森省吾, 鍵山恒臣
Organizer
地球惑星科学連合2009年大会V161-P005
Place of Presentation
千葉市
Year and Date
20090516-20090521
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