Development of boron determination for constraining the contributions of fluid and sediment melt to subduction magmas
| Project/Area Number |
18K03773
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 17040:Solid earth sciences-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
三好 雅也 福岡大学, 理学部, 教授 (50557353)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | ホウ素 / 同位体希釈分析 / ICP質量分析計 / ブランク / 火成岩 / 沈み込み流体 / 火山岩 / 沈み込み帯 / ICPMS / 火山 / 分析法 |
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| Outline of Final Research Achievements |
Boron is used as an important tracer to assess contributions of subduction fluids in arc environments. Because boron analyses using chemical methods have difficulties, prompt gamma ray neutron activation analysis which requires no chemical handling, has been used for boron determination since the 1990s.However, after the nuclear power plant accident in 2011, neutron radiation experiments were halted in Japan. This study developed an analytical method using isotope dilution method for boron in volcanic rocks. The developed method has been successfully applied to the studies on subduction volcanisms in Kyushu island and Chile.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は火山岩中のホウ素を，正確に比較的簡単な方法で分析する手法を開発した．開発した分析方法は，地球化学の国際学術誌にオープンアクセス文献として公開された．原発事故により放射化分析が難しくなり停止状態であった，ホウ素地球化学の分析研究が再開されるきっかけになることが期待できる．
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Report
(4 results)
Research Products
(16 results)
