Material-physical processes controlling fault-slip at the depth limits of the seismogenic zone
| Project/Area Number |
19K14823
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 17040:Solid earth sciences-related
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Verberne Berend 国立研究開発法人産業技術総合研究所, 地質調査総合センター, 研究員 (40827010)
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| Project Period (FY) |
2019-04-01 – 2020-03-31
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| Project Status |
Discontinued (Fiscal Year 2019)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | quartz / feldspar / seismogenic zone / earthquake / shear deformation / fault slip / localization / friction / creep |
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| Outline of Research at the Start |
Research designed to construct a fully experimentally-based fault strength profile for the quartzofeldspathic continental crust. Using an innovative experimental design for simulation of earthquake fault-slip, the results will shed new lights on the mechanisms controlling earthquake rupture.
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| Outline of Annual Research Achievements |
The strength and stability of simulated quartz-feldspar faults was tested under P-T conditions pertaining to the upper 18 km of the crust, through experiments at AIST and at Tohoku university. All mechanical data show a friction coefficient of 0.7-0.8 and velocity strengthening behavior. Fragments of samples deformed at the Tohoku lab were investigated using incident light and scanning electron microscopy. These show evidence for localized shear deformation and local melt generation.
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Report
(1 results)
Research Products
(6 results)
