【摘要】 本文利用水平层状介质模型及其响应系数理论对四川郫县台1984年五种不等极距的实测资料进行了反演。结果表明:反演得到的各层等效电阻率曲线可以直观、清晰地反映地下介质内部发生的物理过程。由于反演后能把表层季节干扰的非震变化从实测曲线中“检测”出来,从而得到探测范围内深层的平稳过程,这样对于在蕴震时段识别可能的前兆提供了一个良好的背景。因此进行多极距观测和反演可能会把地电阻率法预报地震的探索工作推向深入。更多还原

【Abstract】 Making the use of the horizontal, homogeneous layered model for the media and the theory of response coefficience of earth resistivity, this paper deals with the inversion of the observational data in apparent resistivity temporal change with five different separations in Pixian station, Sichuan province in 1984. The results by inversion show that the equivalent true resistivity-time curves for layers could be used to reveal the physical process int he respective layers intuitively and clearly. A stable process associated with the deep layer could be distinguished from the observational data which were effected by the seasonal variations in the top layer. In this way, we could have a more stable background to recognize the possible precursor in the equivalent true resistivity if it would exist in the preparatory process of an earthquake. It is hoped that to undertake the multi-separation observation for monitoring the temporal change of earth resistivity instead of the single separation, and to do the inversion. So, the method will be possible to push forward the research of earth resistivity monitoring method to the earthquake prediction.更多还原