2015 Fiscal Year Final Research Report
Development of a new mehod to estimate a redox state of almost all lavas
| Project/Area Number |
26610160
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geology
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ISHIBASHI Hidemi 静岡大学, 理学部, 講師 (70456854)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 島弧火山 / 酸化還元状態 / 酸素フュガシティ / ハンレイ岩 / マントル / 島弧 |
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| Outline of Final Research Achievements |
The 1707 pyroclasts of Mt. Fuji have gabbroic xenoliths. we studied fO2 conditions of the gabbroic xenoliths in order to understand a redox state within magma chamber of an island-arc volcano. Fe-Ti oxides thermobarometry-oxybarometry yield T-fO2 conditions of ca.760-940 degree C and near Ni-NiO buffer for ilmenite-magnetite coexisting samples.
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| Free Research Field |
地質学
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