2010 Fiscal Year Final Research Report
Global Warming in the Proterozoic; extensive decarbonation event in the lower crust and its implications to the surface environment
| Project/Area Number |
20606002
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
地球システム変動
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
OMORI Soichi Tokyo Institute of Technology, 大学院・理工学研究科, 特任准教授 (90267469)
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| Co-Investigator(Renkei-kenkyūsha) |
SANTOSH M. 高知大学, 理学部, 教授 (20333453)
UENO Yuichiro 東京工業大学, 大学院・理工学研究科, 准教授 (90422542)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 原生代 / 温室効果 / 脱炭酸反応 / 下部地殻 |
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| Research Abstract |
Field works in Kerala, southern India and Adirondack Mountains, NY were done. Petrographic observations of samples from these localities were done. It has been confirmed that CO_2 fluid inclusions in garnet and zircon were common in these lower-crust rocks. A numerical model of the CO_2 cycle connecting the solid Earth and the surface environment was constructed. It has been demonstrated that an expected decarbonation event in the Proterozoic had extensive effect to the Earth's surface temperature. A new method to estimate a thermal structure of the subduction zone was developed. These results were presented in 6 talks and published as 13 papers in academic journals.
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[Journal Article] MELOSの目指す火星表層科学探査2010
Author(s)
杉田精司, 宮本英昭, 橘省吾, 岡田達明, 出村裕英, 大森聡一, 並木則行, 高橋幸弘, 三浦弥生, 長尾敬介, 三河内岳, 佐藤毅彦
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Journal Title
日本惑星科学会誌 Vol.18, No.2
Pages: 79-83
Peer Reviewed
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[Journal Article] The dynamics of big mantle wedge, magma factory, and metamorphic-metasomatic factory in subduction zones2009
Author(s)
Maruyama S., Hasegawa A. Santosh, M.Kogiso T., Omori S., Nakamura, H., Kawai, K., Zhao, D.
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Journal Title
Gondwana Research 16
Pages: 414-430
Peer Reviewed
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[Journal Article] Metamorphic P-T-time history of the Sanbagawa belt in central Shikoku, Japan and implications for retrograde metamorphism during exhumation2009
Author(s)
Aoki, K., Kitajima, K., Masago, H., Nishizawa, M., Terabayashi, M., Omori S., Yokoyama, T., Takahata, N., Sano, Y., Maruyama, S.
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Journal Title
Lithos(doi:10.1016/j.lithos.2009.04.033.) 113
Pages: 393-407
Peer Reviewed
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