Estimate of subduction rate of continental crust materials and its effect on mantle convection
| Project/Area Number |
26800237
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Ehime University |
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Principal Investigator |
Ichikawa Hiroki 愛媛大学, 地球深部ダイナミクス研究センター, WPI研究員 (50570503)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 固体地球惑星物理学 / 地球・惑星内部構造 / 大陸地殻 / 島弧の衝突・沈み込み / 個体地球惑星物理学 |
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| Outline of Final Research Achievements |
The Izu-Bonin arc is considered to be partially subducting underneath the island of Honshu after the vertical collision with Honshu. In this study, 2-D numerical code for the analysis of subduction processes of oceanic arcs was created and calculations are carried out with various parameters. The results show that about 20% of the felsic crust materials in oceanic arcs that are comparable in size to the Izu-Bonin arc can be subducted into about 300 km depth when the temperature of the subducting slab is of the usual value. When the size of the arc is smaller, the subduction rate of felsic crust materials into the deep mantle grows larger.
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Report
(4 results)
Research Products
(14 results)
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[Presentation] Influence of majorite on hot plumes2014
Author(s)
Hiroki Ichikawa, Masanori Kameyama, Hiroki Senshu, Kenji Kawai, and Shigenori Maruyama
Organizer
2014 AGU Fall meeting
Place of Presentation
Moscone center (San Francisco)
Year and Date
2014-12-17
Related Report
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