| Project/Area Number |
20540415
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
SAITO Genji 独立行政法人産業技術総合研究所, 地質情報研究部門, 主任研究員 (20357057)
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| Co-Investigator(Renkei-kenkyūsha) |
KAWANABE Yoshihisa 独立行政法人産業技術総合研究所, 地質情報研究部門, 主任研究員 (60356847)
TOMIYA Akihiko 独立行政法人産業技術総合研究所, 地質情報研究部門, 主任研究員 (30357553)
MORISHITA Yuichi 独立行政法人産業技術総合研究所, 地質情報研究部門, 研究グループ長 (90358185)
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| Project Period (FY) |
2008 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | カルデラ / マグマ / 火山 / メルト包有物 / 発泡 / SIMS / 噴火 / マグマ溜まり / 揮発性成分 / 二次イオン質量分析 / 火山現象 / 水 |
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| Research Abstract |
Purpose of this study is investigation on behavior of volatile material (H_2O, CO_2, S) in magma chambers of caldera-forming eruptions based on melt inclusion analysis. Melt inclusion analyses of Kikai-Tozurahara caldera-forming eruption (95 ka) a (1) vesiculation of the magma chamber with pressure decrease occurred just before the Kikai-Tozurahara caldera-forming eruption, and (2) two processes of pressure decrease and injection of CO_2gas to the magma chamber from a deeper part caused vesiculation of the magma chamber just before the Kikai-Akahoya caldera-forming eruption. In addition, SIMS analysis of melt inclusions was improved and melt inclusions of the other four caldera-forming eruptions (Aira, Ata , Aso3 and Aso4)were prepared for their analyses in this study.
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