2009 Fiscal Year Final Research Report
Investigation into mantle evolution process by noble gas and halogen multi-element simultaneous analysis of deep-mantle-derived materials
| Project/Area Number |
20740314
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SUMINO Hirochika The University of Tokyo, 大学院・理学系研究科, 助教 (90332593)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 地球化学 / 地殻・マントル物質 / 地球・惑星内部構造 / 同位体 / 質量分析 / 希ガス / ハロゲン / 中性子照射 |
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| Research Abstract |
The technique of the noble gas and halogen multi-element simultaneous analysis, in which some halogen isotopes are converted to specific noble gas isotopes by nuclear reaction induced by neutron irradiation in a nuclear reactor, was established. Geochemical evidences for upwelling of deep mantle material and subduction of surface-derived water into mantle to depths of mantle between 100 and 200 km were found by applying this method to deep-mantle-derived samples such as the mantle peridotites and diamonds.
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Research Products
(15 results)
