地球物理方法探测活动断层效果和方法最佳组合分析

The Function of Geophysical Method in Active Fault Detection and Discuss of Combining Methods

采用综合地球物理方法对长春市的已知断层进行探测实践,表明不同的地球物理方法解决不同问题,并具有不同的效果。例如重磁方法、联合剖面方法可以缩小活动断层的研究范围;探地雷达、浅层地震、高密度电法等方法在研究活动断层的剖面形态中具有很好的作用,而且探地雷达、高分辨率地震能够提供断层的时间等信息,为活动性探测提供依据。针对研究实例分析了综合地球物理方法在活动断层中的组合方法,为开展活动断层的研究提供借鉴。

The active fault detection is very important in the megapolis.Two active faults are detected in Changchun city by geophysical methods,the result shows that different method has different function and solves different problems,such as the gravity and magnetic method,combining section can be used to reduce the study area;GPR,shallow seismic,resistivity image profile etc.can be used in study the section shape of fault,and high resolution GPR and shallow seismic can provide the information of faulting time whic...