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| 1 | 潮汐应力对2007年M_s6.4宁洱地震震源断层成核失稳过程的影响显示文摘在潮汐库仑破裂应力计算和相关性检验的基础上,采用速率-状态依赖性摩擦本构关系,进行潮汐应力对宁洱地震震源断层成核失稳过程影响的数值模拟研究,并讨论潮汐正应力和潮汐剪应力在潮汐应力触发中的作用,以及应力的振幅和周期振荡性对潮汐触发的影响.结果发现,宁洱地震与潮汐应力之间存在潮汐触发相关性.宁洱地震震源断层的成核过程存在一个转变周期,当潮汐应力周期接近和大于转变周期时,潮汐应力的周期性将直接影响潮汐触发作用的效果.潮汐应力振幅值的增加也有助于潮汐应力对断层地震成核失稳过程的影响,正应力和剪应力振幅值的影响效果差别不大,但是潮汐剪应力比正应力能更迅速的起到潮汐触发作用.潮汐应力触发地震的过程中,主要是正值的潮汐正应力和剪应力对地震起到触发作用,而负值的潮汐应力对断层的影响小于正值的潮汐应力,断层对负的潮汐应力不敏感. | 解朝娣 LEI XingLin 吴小平 付虹 熊子瑶 虎雄林 李莎 | 2015 | 中国科学:地球科学2015，45，9： | 10 |
| 2 | 长周期潮汐与全球地震能量释放显示文摘采用1850—2012年期间USGS全球M≥5.0地震目录资料,构成全球地震能量-时间序列,进行小波变换和准周期分析.结果表明,全球地震能量释放的时间序列存在9年、19年和45年的3个准周期,其中,45年准周期最为突出.结合起潮力周期的物理背景,对长周期潮汐起潮力与地震能量释放准周期的关系进行了探讨,没有发现全球地震活动的能量释放与潮汐短周期相关的准周期. | 解朝娣 吴小平 雷兴林 冒蔚 孙楠 | 2013 | 地球物理学报2013，56，10： | 8 |
| 3 | Effect of tidal stress on fault nucleation and failure of the 2007 Ms6.4 Ning'er earthquake显示文摘Based on calculations of the tidal Coulomb failure stress and investigations of the correlation between the Earth tide and the Ning'er earthquake sequence, the processes of fault nucleation and failure were simulated. In these simulations we consider the influence of tidal stresses using the rate- and state-dependent friction laws. Furthermore, the effects on tidal triggering due to the stress amplitude and periodic oscillation properties were investigated, and the triggering effects between the tidal normal and tidal shear stresses were compared. The results showed that the Ning'er earthquake sequence was a physical consequence of tidal effects. A transition period T_0 exists between the nucleation and failure processes of a seismic fault. When the period T of stress is equal to or becomes larger than T_0, the fault response becomes dependent on the periodic features of the loading stress; however, for T < T_0, the response of the fault is nearly independent of the period. Both the tidal normal and tidal shear stresses have similar effect in the nucleation and failure processes; the clock changes generally increase with the maximum amplitudes of the tidal stresses. Tidal normal and tidal shear stresses with positive amplitudes mainly induce earthquake triggering; however, the triggering effects induced by negative tidal stresses are smaller and faults are not sensitive to negative tidal stresses. Our results primarily reveal the physical mechanisms of tidal stress triggering. | XIE ChaoDi LEI XingLin WU XiaoPing FU Hong XIONG ZiYao HU XiongLin LI Sha | 2016 | Science China Earth Sciences2016，59，2： | 0 |
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