Roles of minerals during the evolution of organic matter in planetesimals
Project/Area Number |
18K03722
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 17010:Space and planetary sciences-related
|
Research Institution | Yokohama National University |
Principal Investigator |
Kebukawa Yoko 横浜国立大学, 大学院工学研究院, 准教授 (70725374)
|
Project Period (FY) |
2018-04-01 – 2020-03-31
|
Project Status |
Completed (Fiscal Year 2019)
|
Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
Keywords | 隕石 / 太陽系 / 有機物 / 鉱物 / 太陽系物質進化 / 小天体 / 変成 / 微惑星 |
Outline of Final Research Achievements |
The chemical processes that occurred inside the small bodies in the early Solar System played important roles in the final chemical structures of the complex organic matter in the primitive meteorites. However, little is known about the role of minerals during the chemical processes of organic matter. In this study, we conducted heating experiments on minerals and the analogue of primordial organic matter in meteorites, and revealed the effect of minerals on metamorphism of organic matter. We applied nano-infrared spectroscopy (AFM-IR) for the first time to analyze organic matter in meteorite, and successfully visualized the relationship between organic functional groups and mineral distributions with a spatial resolution of tens of nm. Using a transmission scanning X-ray microscope (STXM), the characteristics of organic matter and the relationship with coexistence minerals in meteorites with various degrees of alteration were investigated.
|
Academic Significance and Societal Importance of the Research Achievements |
本研究により,太陽系初期の物質進化過程において,個別の鉱物が有機物に及ぼす影響を明らかにした。また,隕石中の有機物の特徴と鉱物の分布を可視化することにより,有機物・鉱物の相互作用を踏まえた物質進化過程解明へのアプローチ基盤を確立した。本研究で得られた結果及び研究手法は,2020年末に帰還が予定されているはやぶさ2ミッションなどによる小惑星からのリターンサンプル分析にも応用できると期待される。
|
Report
(3 results)
Research Products
(29 results)
-
-
-
-
-
-
[Journal Article] A novel organic-rich meteoritic clast from the outer solar system2019
Author(s)
Yoko Kebukawa, Motoo Ito, Michael E. Zolensky, Richard C. Greenwood, Zia Rahman, Hiroki Suga, Aiko Nakato, Queenie H. S. Chan, Marc Fries, Yasuo Takeichi, Yoshio Takahashi, Kazuhiko Mase, Kensei Kobayashi
-
Journal Title
Scientific Reports
Volume: 9
Issue: 1
Pages: 3169-3169
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
[Journal Article] Heating experiments of the Tagish Lake meteorite: Investigation of the effects of short‐term heating on chondritic organics2019
Author(s)
Queenie H. S. Chan, Aiko Nakato, Yoko Kebukawa, Michael E. Zolensky, Tomoki Nakamura, Jessica A. Maisano, Matthew W. Colbert, James E. Martinez, A. L. David Kilcoyne, Hiroki Suga, Yoshio Takahashi, Yasuo Takeichi, Kazuhiko Mase, Ian P. Wright
-
Journal Title
Meteoritics & Planetary Science
Volume: 54
Issue: 1
Pages: 104-125
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
[Presentation] Organic matter in carbonaceous chondrite lithologies of Almahata Sitta meteorite, a polymict ureilite2019
Author(s)
癸生川 陽子, Michael Zolensky, Cyrena Anne Goodrich, 伊藤 元雄, 小川 奈々子, 高野 淑識, 大河内 直彦, 菅 大暉, Matthew Marcus, David Kilcoyne, 大東 琢治, Rahman Zia, Shaddad Muawia, 小林 憲正
Organizer
日本地球惑星科学連合2019年大会
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Organic Matter in Carbonaceous Chondrite-like Xenolithic Clasts: Preserving Unique Records in the Solar System2018
Author(s)
Yoko Kebukawa, Motoo Ito, Michael Zolensky, Richard Greenwood, Zia Rahman, Hiroki Suga, Aiko Nakato, Queenie Chan, Marc Fries, Yasuo Takeichi, Yoshio Takahashi, Kazuhiko Mase, Kensei Kobayashi
Organizer
AOGS 15th Annual Meeting
Related Report
Int'l Joint Research / Invited
-
-
-
-