论文部分内容阅读
11月21日,Nature Communications刊登文章《侵蚀作用影响活动断层的地震活动性》(Erosion Influences the Seismicity of Active Thrust Faults),来自中国台湾和法国的研究团队经研究指出,地表的侵蚀作用可以对于活动断层造成显著的应力变化,进而影响地震活动的发生。长期以来,科学家们一直怀疑地表的侵蚀作用(包括河川的侵蚀搬运等)可能会影响地壳深部的应力平衡,进而影响地震活动的发生。然而过去由于缺乏数据,这个假设一直无法得到证实。来自台湾和法国的研究团队利用过去针对台湾地区活动断层调查所得的数据,搭配文献中记录的台湾地区侵蚀速率,运用力学模型仿真的方法,成功证明板块构造并非是能够影响地震断层活动的唯一机制,地表的侵蚀作用可以对活动断
On November 21, Nature Communications published an article entitled “Erosion Influences the Seismicity of Active Thrust Faults,” and research teams from Taiwan, China and France have shown that the erosion of the earth’s surface can contribute to the activity Fault caused significant stress changes, thereby affecting the occurrence of seismic activity. For a long time, scientists have always suspected that the erosion of the earth’s surface (including the erosion of the river, etc.) may affect the stress balance in the deep crust, thus affecting the occurrence of seismic activity. However, in the past this assumption has been unconfirmed due to lack of data. Based on the data from the survey of active faults in Taiwan in the past and the erosion rates in Taiwan recorded in the literature and using the method of mechanical model simulation, the research team from Taiwan and France succeeded in proving that the plate tectonics is not the only mechanism that can affect the seismic fault activity , The erosion of the surface of the activity can be broken