Slow earthquakes associated with fault healing on a serpentinized plate interface
Slow earthquakes associated with fault healing on a serpentinized plate interface
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DOI：
10.1038/srep01784
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发表时间：
2013-05-07
影响因子：
4.6
通讯作者：
Hirauchi, Ken-ichi
中科院分区：
文献类型：
--
作者：
Katayama, Ikuo;Iwata, Mutsumi;Okazaki, Keishi;Hirauchi, Ken-ichi
发生在俯冲带的慢地震在滑动行为方面不同于常规地震。我们认为这种差异与影响摩擦性能的板界面处的局部水化反应有关。实验室摩擦实验结果表明，模拟蛇形断层的特点是一个低愈合率和大的滑动弱化距离相比，未改变干故障补丁。这些结果是一致的慢地震的滑动机制，表明局部蛇纹化的板块界面可以触发慢地震，孔隙压力的建立，而未改变的干补丁，保持强烈耦合的潜在网站的定期地震。
Slow earthquakes that occur at subduction zones are distinct from regular earthquakes in terms of their slip behavior. We consider this difference to relate to localized hydration reactions at the plate interface that influence the frictional properties. The results of laboratory friction experiments indicate that simulated serpentine faults are characterized by a low healing rate and large slip-weakening distance compared with unaltered dry fault patches. These results are consistent with the slip mechanism of slow earthquakes, indicating that a locally serpentinized plate interface could trigger slow earthquakes, assisted by pore pressure build-up, whereas unaltered dry patches that remain strongly coupled are potential sites of regular earthquakes.
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影响因子：
5.2
作者：
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