A New Development of Chondrule Formation Theory : Based on a Comparison with Cosmic Spherules
Project/Area Number |
21540434
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Solid earth and planetary physics
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Research Institution | Tokyo Institute of Technology |
Principal Investigator |
NAKAMOTO Taishi 東京工業大学, 大学院・理工学研究科, 准教授 (60261757)
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 惑星形成 / 隕石 / コンドリュール / 宇宙塵 |
Research Abstract |
Formation mechanism of chondrules, which are included in most of meteorites, has not been understood clearly. To elucidate the formation process, we approach to the formation process of cosmic spherules that are silicate small particles similar to chondrules. First, we measure the shape, chemical composition, and texture of each cosmic spherule. We find a clear correlation among them. Also, we find that the correlation can be understood quantitatively using a theory of the motion of the particle in the Earth atmosphere and the heating/cooling to the particle. Based on these understandings, we expect new studies on the formation mechanism of chondrules should be developed.
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Report
(4 results)
Research Products
(47 results)
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[Presentation] Correlation among Shape2012
Author(s)
Nakamoto, T., Doi, M., Nakamura, T., and Yamauchi, Y., A
Organizer
Composition, and Texture of Cosmic Spherules
Place of Presentation
ウィーン
Year and Date
2012-04-27
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[Book] 新・太陽系2009
Author(s)
井田茂・中本泰史
Total Pages
228
Publisher
ソフトバンククリエイティブ社
Related Report