2013 Fiscal Year Final Research Report
High-pressure Experimental Geochemistry
| Project/Area Number |
21224013
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
HIRATA Takafumi 京都大学, 理学(系)研究科(研究院), 教授 (10251612)
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| Co-Investigator(Kenkyū-buntansha) |
HIROSE Kei 東京工業大学, 地球生命研究所, 教授 (50270921)
TATENO Shogehiko 東京工業大学, 大学院理工学研究科(理学系), 特任助教 (30572903)
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| Co-Investigator(Renkei-kenkyūsha) |
KOGISO Tetsu 京都大学, 大学院人間・環境学研究科, 准教授 (60359172)
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| Project Period (FY) |
2009-05-11 – 2014-03-31
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| Keywords | 地球中心核 / 親鉄性元素 / 超高感度質量分析法 / 超高圧実験 / 元素分配実験 |
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| Research Abstract |
It is widely believed that the formation of the Earth's core could induce dramatic changes in various geochemical and geophysical aspects of the Earth. Series of recent studies have revealed that the environmental condition for the Earth's surface can change through the core formation, and therefore, formation or evolution sequence of the Earth's core was still key issue to understand the overall evolutional history of our planet. To decode the hidden formation sequence of the Earth's core, such as timing and duration of the core formation or possible changes in the chemical composition of the core, we have tried to derive direct elemental information concerning the distribution among the inner-core, outer-core and mantle using a combination of newly developed in-situ analytical technique and the sophisticated high-pressure experiments.
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[Journal Article] Atomic weights of the elements 2011 (IUPAC Technical Report)2013
Author(s)
Michael E. Wieser, Norman Holden, Tyler B. Coplen, John K, Bohlke, Michael Berglund, Willi A. Brand, Paul De Bievre, Manfred Groning, Robert D. Loss, Juris Meija, Takafumi Hirata, Thomas Prohaska, Ronny Schoenberg, Glenda O'Connor, Thomas Walczyk, Shige Yoneda and Xiang-Kun Zhu
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Journal Title
Pure and Applied Chemistry
Volume: 85
Pages: 1047-1078
Peer Reviewed
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[Journal Article] Grain-scale Iron isotopic distribution of pyrite from Precambrian shallow marine carbonate revealed by femtosecond laser ablation multi-collector ICP-MS technique : Potential proxy for the redox state of ancient seawater2010
Author(s)
Manabu Nishizawa, Hiroki Yamamoto, Yuichiro Ueno, Subaru Tsuruoka, Takazo Shibuya, Yusuke Sawaki, Shinji Yamamoto, Yoshiaki Kon, Kouki Kitajima, Tsuyoshi Komiya, Shigenori Maruyama, Takafumi Hirata
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Journal Title
Geochim. Cosmochim. Acta
Volume: 74
Pages: 2760-2778
Peer Reviewed
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