Early parent-body processes of carbonaceous chondrites
Project/Area Number |
26400515
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Petrology/Mineralogy/Economic geology
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Research Institution | Kobe University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
SETO Yusuke 神戸大学, 大学院理学研究科, 講師 (10399818)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | 炭素質コンドライト / 水質変成 / 角礫岩化 / コンドリュールリム / 流動化 / 隕石母天体 / 熱変成 / ネフェリン / 角れき岩 / 水熱実験 / コンドライト / コンドリュール / 角れき岩化 / 電子顕微鏡 / 角礫岩 / 透過電子顕微鏡 |
Outline of Final Research Achievements |
Carbonaceous chondrites are widely thought to have formed primarily by direct accretion of solar nebular materials. However, our electron microscopy studies of several carbonaceous chondrites revealed mineralogical and petrographic evidence that cannot be explained by such a process. Based on detailed studies of one of the meteorites, we proposed a model for the development of the meteorite lithology through formation of clasts and fine grains by fragmentation of precursor rocks in the parent body, followed by transportation, mixing, and accumulation of those objects in a fluidized state. If this model can be applied to other meteorites in general, the origin and evolution of carbonaceous chondrites may need to be fundamentally reappraised in future.
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Report
(5 results)
Research Products
(36 results)
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[Journal Article] Discovery of moganite in a lunar meteorite as a trace of H2O ice in the Moon’s regolith2018
Author(s)
M. Kayama, N. Tomioka, E. Ohtani, Y. Seto, H. Nagaoka, J. Gotze, A. Miyake, S. Ozawa, T. Sekine, M. Miyahara, K. Tomeoka, M. Matsumoto, N. Shoda, N. Hirao, T. Kobayashi
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Journal Title
Science Advances
Volume: 印刷中
NAID
Related Report
Peer Reviewed
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[Presentation] 月面における水の起源と水源地: 物質科学的見地からの検討2016
Author(s)
鹿山雅裕, 富岡尚敬, 大谷栄治, 中嶋悟, 瀬戸雄介, 長岡央, Fagan Timothy J, Gotze Jens, 三宅亮, 小澤信, 関根利守, 宮原正明, 松本恵, 庄田直起, 留岡和重
Organizer
日本地球惑星科学連合
Place of Presentation
幕張メッセ(千葉県千葉市)
Year and Date
2016-05-22
Related Report
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[Presentation] 月隕石に記録された水に富む月の上部マントル2016
Author(s)
鹿山雅裕,中嶋悟, 富岡尚敬, 瀬戸雄介, 大谷栄治, Fagan Timothy J, 長岡央, 小澤信,関根利守, 宮原正明, 三宅亮, 福田惇一, 留岡和重, 市村隼, 松本恵, 鈴木康太, Gotze Jens
Organizer
日本地球惑星科学連合
Place of Presentation
幕張メッセ(千葉県千葉市)
Year and Date
2016-05-22
Related Report
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[Presentation] Hydrated, Unmetamorphosed clasts in the NWA 1232 CO3 carbonaceous chondrite2015
Author(s)
M. Matsumoto, K. Tomeoka, Y. Seto, A. Miyake, M. Kiriishi, M. Umehara, Y. Yamamoto, D. Nishio-Hamane
Organizer
The Meteoritical Society
Place of Presentation
University of California, Berkeley, USA
Year and Date
2015-07-28
Related Report
Int'l Joint Research
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