2012 Fiscal Year Final Research Report
Experimental approaches for formation mechanism of cosmic symplectite
| Project/Area Number |
23740392
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Kobe University |
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Principal Investigator |
SETO Yusuke 神戸大学, 大学院・理学研究科, 助教 (10399818)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 隕石 / 同位体異常 / 電子顕微鏡 |
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| Research Abstract |
In order to estimate a formation mechanism of isotopically anomalous material COS in the carbonaceous chondrite, melting and quenching experiments were performed varying chemical composition and cooling rate. Symplectitic texture consisting of magnetite and pyrrhotite in hundreds nm scales were reproduced in Ni-free system under rapid cooling condition. The present results suggest that COS also formed by simultaneous and rapid crystal growth.
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[Journal Article] Oxygen Isotopic Compositions of Asteroidal Materials Returned from Itokawa by the Hayabusa Mission2011
Author(s)
Yurimoto H., Abe K., Abe M, Ebihara M, Fujimura A, Hashiguchi M, Hashizume K, Ireland TR, Itoh S, Katayama J, Kato C , Kawaguchi J, Kawasaki N, Kitajima F, Kobayashi S, Meike T, Mukai T, Nagao K, Nakamura T, Naraoka H, Noguchi T, Okazaki R, Park C, Sakamoto N, Seto Y, Takei M, Tsuchiyama A, Uesugi M, Wakaki S, Yada T, Yamamoto K, Yoshikawa M, Zolensky ME.
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Journal Title
Science
Volume: 333
Pages: 1116-1119
DOI
Peer Reviewed
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[Journal Article] Silicate Dust Size Distribution from Hypervelocity Collisions:Implications for Dust Production in Debris Disks2011
Author(s)
Takasawa S., Nakamura A. M., Kadono T., Arakawa M., Dohi K., Ohno S., Seto Y., Maeda M., Shigemori K., Hironaka Y., Sakaiya T., Fujioka S., Sano T., Otani K., Watari T., Sangen K., Setoh M., Machii N. and Takeuchi T
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Journal Title
Jounal Letters
Volume: 733
Pages: L39(4)
DOI
Peer Reviewed
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