| 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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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 原生代 / 温室効果 / 脱炭酸反応 / 下部地殻 / 環境変動 / 地質学 / 二酸化炭素 / 地殻流体 / 流体包有物 / ジルコン / グラニュライト / 超高温変成岩 |
|---|
| 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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