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- Raehee Han
- Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, South Korea.
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- Toshihiko Shimamoto
- Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, South Korea.
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- Takehiro Hirose
- Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, South Korea.
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- Jin-Han Ree
- Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, South Korea.
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- Jun-ichi Ando
- Department of Earth and Environmental Sciences, Korea University, Seoul 136-701, South Korea.
書誌事項
- 公開日
- 2007-05-11
- DOI
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- 10.1126/science.1139763
- 公開者
- American Association for the Advancement of Science (AAAS)
この論文をさがす
説明
<jats:p>High-velocity weakening of faults may drive fault motion during large earthquakes. Experiments on simulated faults in Carrara marble at slip rates up to 1.3 meters per second demonstrate that thermal decomposition of calcite due to frictional heating induces pronounced fault weakening with steady-state friction coefficients as low as 0.06. Decomposition produces particles of tens of nanometers in size, and the ultralow friction appears to be associated with the flash heating on an ultrafine decomposition product. Thus, thermal decomposition may be an important process for the dynamic weakening of faults.</jats:p>
収録刊行物
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- Science
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Science 316 (5826), 878-881, 2007-05-11
American Association for the Advancement of Science (AAAS)
