Thermal processes of seismogenic zone faults in plate subduction zone revealed by thermochronologic analyses
| Project/Area Number |
24340123
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Kyoto University |
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Principal Investigator |
TAGAMI Takahiro 京都大学, 理学(系)研究科(研究院), 教授 (80202159)
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| Co-Investigator(Kenkyū-buntansha) |
TSUTSUMI Akito 京都大学, 大学院理学研究科, 助教 (90324607)
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| Co-Investigator(Renkei-kenkyūsha) |
WATANABE Yumiko 京都大学, 大学院理学研究科, 助教 (20509939)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2012: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Keywords | 熱年代学 / 温度履歴 / 震源断層 / 四万十帯 / 付加体 / IODP |
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| Outline of Final Research Achievements |
Thermal history of fault zones were analyzed by thermochronology, in order to reconstruct the history of fault motions as well as to quantitatively assess relevant heat generation and transfer. The estimation of the time of fault motion and modeling of heat generation and transfer were conducted by applying the fission-track and other methods to seismogenic zone faults of plate subduction zone. As a result, the time of heating episode was estimated as 48±6Ma(2SE) by thermal history inversion of zircon FT data. The age is best interpreted by the time of activity of“out-of-sequence thrust” during the formation and evolution of the Shimanto accretionary complex.
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Report
(4 results)
Research Products
(35 results)
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[Journal Article] and Expedition 343 and 343T Scientists (2013) Low coseismic shear stress on the Tohoku-Oki megathrust determined from laboratory experiments2013
Author(s)
Ujiie, K., Tanaka, H., Saito, T., Tsutsumi, A., Mori, J. J., Kameda, J., Brodsky, E. E., Chester, F. M., Eguchi, N., Toczko, S
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Journal Title
Science
Volume: 342
Issue: 6163
Pages: 1211-1214
DOI
Related Report
Peer Reviewed
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[Journal Article] The first(U-Th)/Hethermochronology of pseudotachlylytefrom the Median Tectonic Line southwest Japan.2012
Author(s)
Yamada, K., Hanamuro, T., Tagami, T., Shimada, K., Takagi, H., Yamada, R., and Umeda, K
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Journal Title
J. Asian Earth Sci
Volume: 45
Pages: 17-23
DOI
Related Report
Peer Reviewed
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[Journal Article] Denudation history of the Kiso Range, central Japan, and its tectonic implications : Constraints from low-temperature thermochronology2012
Author(s)
Sueoka, S., Kohn, B.P., Tagami, T., Tsutsumi, H., Hasebe, N., Tamura, A., Arai, S.
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Journal Title
Island Arc
Volume: 21
Issue: 1
Pages: 32-52
DOI
Related Report
Peer Reviewed
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[Presentation] The huge shallow slip during the 2011 Tohoku-Oki earthquake as a result of very low coseismic shear strength of the Japan Trench décollement material2013
Author(s)
Ujiie, K., Tanaka, H, Saito, T., Tsutsumi, A., Mori, J J, Kameda, J
Organizer
American Geophysical Union Fall Meeting 2013
Place of Presentation
San Francisco (USA)
Related Report
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[Presentation] New time constraints on brittle faulting in the Toki Granite, central Japan2012
Author(s)
Yamasaki, S., Zwingmann, H., Yamada, K., Umeda, K., Tagami, T.
Organizer
Goldschmidt 2012
Place of Presentation
Montreal, Canada
Year and Date
2012-06-27
Related Report
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[Presentation] Brittle fault dating from the Mesoproterozoic to the Neogene2012
Author(s)
Zwingmann, H , Mancktelow, N., Viola, G., Pleuger, J., Yamasaki, S., Tagami. T.
Organizer
Goldschmidt 2012
Place of Presentation
Montreal, Canada
Related Report
