SEISMIC ELECTRIC SIGNALS FROM DISPLACEMENT OF CHARGED DISLOCATIONS

被引:79
作者
SLIFKIN, L
机构
[1] Department of Physics and Astronomy, University of North Carolina, Chapel Hill
基金
美国国家科学基金会;
关键词
D O I
10.1016/0040-1951(93)90066-S
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
One possible mechanism for the generation of seismic electric signals is the displacement of segments of charged dislocations, responding to changes in the applied stress. Using information available from the study of simpler ionic crystals, a crude estimate is made of the voltage that could be generated from large blocks of the Earth's crust during a pre-earthquake stress adjustment. Within the many uncertainties of critical parameters, the results are consistent with the magnitudes of precursor signals that have been observed in Greece.
引用
收藏
页码:149 / 152
页数:4
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