用多普勒效应计算汶川余震断层滑动速度函数  

The calculation of fault sliding velocity function in Wenchuan aftershock with Doppler effect

作　　者：李启成[1] 张晶[1] 

机构地区：[1]辽宁工程技术大学矿业学院地质系,阜新123000

出　　处：《地球物理学进展》2014年第2期505-511,共7页Progress in Geophysics

基　　金：黑龙江省教育厅2011年科研项目(12513082)

摘　　要：以往得到的断层滑动速度函数是通过理论研究获得,其计算结果与地壳介质等因素有关.由于目前人们对地壳介质和震源机制研究的局限性,使得计算结果的准确性不高.在系统提出用多普勒效应计算断层滑动速度函数的基础上,以汶川地震余震为例计算了地震断层的滑动速度函数.结果表明,滑动速度函数具有迅速上升,相对缓慢下降的特点,与Hisacla的研究结果一致.用多普勒效应计算断层断层滑动速度函数的结果与地壳介质和震源机制无关,应该是一种有前途的计算地震断层滑动速度的方法.The fault sliding velocity function was acquired either from theory or from computational results that have something to do with crust medium and other factor. Limitations that people understand the crust medium and source mechanism make accuracy of computational results low. On the basis of our systemic method that computes fault sliding velocity function with Doppler effect, fault sliding velocity function of Wenchuan aftershock is calculated. Computational results show fault sliding velocity function has characteristic that velocity raises rapidly, and descends slowly, these results are identical with Hisada. The computational results by Doppler effect have nothing to do with the crust medium and source mechanism, so this method is effective to calculate fault sliding velocity function.

关 键 词：多普勒效应 滑动速度函数 断层 地震 汶川 

分 类 号：P315[天文地球—地震学]