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Preliminary analysis for the roles of crustal low-velocity and high-conductivity body in process of strong earthquake preparation 被引量:3
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作者 李炳乾 牛志仁 段锋 《Acta Seismologica Sinica(English Edition)》 CSCD 2000年第2期151-158,共8页
In this paper, the roles of low velocity and high conductivity body inside the crust in the process of strong earth quake preparation are approached by using theoretical analysis method based on the comprehensive rese... In this paper, the roles of low velocity and high conductivity body inside the crust in the process of strong earth quake preparation are approached by using theoretical analysis method based on the comprehensive researches on the fine structure of strong seismic source in the North China. The following results are obtained. The low-velocity and high-conductivity body plays the promoting role for the action of deep-seated structure in the medium stage of earthquake preparation, except that its existence is advantageous to the stress concentrating in the overlying brittle layer during the process of earthquake preparation. And it plays the triggering role for the occurrence of strong earthquake in the later stage of earthquake preparation. 展开更多
关键词 low-velocity and high-conductivity body strong earthquake preparation promoting function triggering function
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