论文部分内容阅读
本文分析研究了中国西北某些地区地壳上地幔內的五类高导电层的分布及横向变化,探讨了其性质、成因及其与地震的关系。以中国南北地震带(北段)为例,探讨了圈划地震带轮廓的深部电性标志;分析了地壳上地幔电导率分布所揭示的地震活动深部物理环境的某些问题,尝试给出了地震带內地震危险区划分的几个深部电性指标,以及利用这些电性指标进行地震危险区划分的实施方法。
In this paper, the distribution and lateral variation of five types of highly conductive layers in the crust and upper mantle in some areas of northwestern China are analyzed and studied. Their properties, genesis and their relationship to earthquakes are discussed. Taking the North and South Seismic Belt in North China as an example, the deep electrical signs of the contour of the cyclostationary seismic zone are discussed. Some problems of the deep physical environment of the seismic activity revealed by the crust and upper mantle conductivity distribution are analyzed. Several deep-seated electrical indices for the classification of seismic risk zones in the seismic zone, as well as the implementation methods of using these electrical indicators for seismic hazard zone classification.