摘要
分别计算了具有对称压力源分布的水平层状半空间介质模型和各向异性裂隙模型的地表冲流电位异常 .结果表明 ,本文所采用的模型计算出来的地表冲流电位异常最大值的量级是合理的 ,其幅度最大约为几百毫伏 ;异常范围随地下各向异性强烈程度而变化 .同时 ,在计算地表冲流电位异常时引入了各向异性裂隙的概念 ,从而从理论上解决了实际观测与理论不相符合的矛盾 .
The surface streaming potential anomalies (SSPA) for a buried symmetrical pressure source in homogeneous and anisotropic layered half space are calculated separately in this paper. The results show that the maximum of SSPA calculated using the two models are reasonable and are about several hundred mV. The range in which SSPA can be detected on the earth′s surface varies with the intensity of medium anisotropy. Anisotropic crack is introduced to calculate the magnitude of SSPA, so theoretically the contradiction between observation data and theoretical results is interpreted more reasonably.
出处
《地震学报》
CSCD
北大核心
2001年第4期398-406,共9页
Acta Seismologica Sinica
基金
中国地震局兰州地震研究所论著 :LC2 0 0 1 0 3 4
