Material evolution caused by catastrophic celestial impacts at the early solar system
| Project/Area Number |
19340169
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
EBIHAEA Mitsuru Tokyo Metropolitan University, 大学院・理工学研究科, 教授 (10152000)
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| Co-Investigator(Kenkyū-buntansha) |
OURA Yasuji 首都大学東京, 大学院・理工学研究科, 准教授 (90291567)
YAMAGUCHHI Akira 国立極地研究所, 助教 (70321560)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2007: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
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| Keywords | 初期太陽系 / 大規模衝突 / HED隕石 / ユークライト隕石 / ホワルダイト隕石 / 白金族元素 / 太陽系初期の衝突 / ユークライト / ホワルダイト / 衝突現象 |
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| Research Abstract |
At the early solar system, it is well acknowledged that many celestial bodies collided with each other, changing their material compositions and combining together. Present planets must have been formed through such processes. In this study, based on elemental and mineralogical compositions of HED meteorites which originated in an asteroid 4Vesta were targeted, the impact processes were investigated. As a result, it was found that eucrite meteorites (a group of HED meteorites) hold impact records caused by iron meteorites ans/or stony iron meteorites and that howardite meteorites (another group of HED meteorites) contain chondritic materials.
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Report
(4 results)
Research Products
(55 results)
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[Journal Article] The variety of lithophiles in the Yamato-86032 lunar meteorite: Implication for formation processes of the lunar crust.2010
Author(s)
A. Yamaguchi, Y. Karouji, H. Takeda, L. Nyquist, D. Bogard, M. Ebihara, C.-Y. Shih, Y. Reese, D. Garrison, J. Park, G. McKay
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Journal Title
Geochim. Cosmochim. Acta (in press)
Related Report
Peer Reviewed
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[Journal Article] Application of NAA to air particulate matter collected at thirteen sampling sites in eight Asian contries : A collaborative Study2008
Author(s)
M. Ebihara, T. S. Chung, H. M. Dung, J. H. Moon, B. -F. Ni, T, Otoshi, Y. Oura, F. L. Santos, F. Sasajima, Sutisna, B. S. Wee, W. Wimolwattanapun, A. Wood
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Journal Title
J. Radioanal. Nucl. Chem. 278
Pages: 463-467
Related Report
Peer Reviewed
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