A study on isotopic homogenization processes in the early solar system
| Project/Area Number |
26400524
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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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| Research Field |
Geochemistry/Cosmochemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Hiyagon Hajime 東京大学, 大学院理学系研究科(理学部), 准教授 (70192292)
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| Co-Investigator(Kenkyū-buntansha) |
森下 祐一 静岡大学, 理学部, 教授 (90358185)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | SIMS / ICP-MS / CAI / コンドルール / マグネシウム同位体 / ベリリウム10 / 同位体不均一 / 初期太陽系 / NanoSIMS / CH/CBコンドライト / LLコンドライト / 二次イオン質量分析 / 誘導結合プラズマ質量分析 / ホウ素同位体 / 始原的隕石 / 二次イオン質量分析計 / シリコン同位体 / 質量依存同位体分別 / ヒボナイト / 難揮発性包有物 / FUN包有物 / 酸素同位体 |
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| Outline of Final Research Achievements |
(1) Isotopic studies were conducted on so-called FUN inclusions from Murchison (CM2) and Allende (CV3) chondrites, and their origin and chemical compositions of their precursors were considered. (2) Isotopic analyses of Be-B systematics were conducted for CAIs from CH/CB chondrites using NanoSIMS, and the origin of 10Be was discussed. (3) A high precision Mg isotope analysis technique has been developed using ICP-MS and applied to chondrules from an LL 3.15 chondrite, and possible heterogeneity in the distribution of 26Al (26Al/27Al ratio) in the early solar system was considered.
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Report
(4 results)
Research Products
(14 results)
