贵州中-深部断裂构造的地震危险性研究

Earthquake risk of the medium-deep-seated fault structure in Guizhou

以贵州省的地质构造分析、地貌分析、地震记录到的地震精确定位、重力和航磁数据判断中-深部断裂分布情况,结合人工地震剖面和中石油西南物探分公司对剖面的解释,得出贵州中-深部构造和破坏性地震关系,确定孕震的中-深部断裂。以多种地球物理探测方法以及地质构造分析、地貌分析相结合的深浅构造研究方法,确定断裂的分布特征及活动特征,总结孕震构造条件的研究方法具有一定的可行性。并且随着物探技术的不断发展,向深部断裂的探测将得以实现,进而得到更加详实的中-深部构造情况,对研究孕震区的深部环境、地震的发震原因将具有较大的指导和借鉴意义。

Based on the geological structure analysis,the landscape analysis,and the earthquake records with accurate positioning,gravity and aeromagnetic data,we analyzed the distribution of medium-deep-seated faults in Guizhou.Combining with the artificial seismic profile and the interpretation of the profile given by Petro China,we obtained the relationship between the medium-deep-seated fault structure and the destructive earthquakes,and determined the seismogenic fractures.It was proved feasible to determine the distribution and activity characteristics of faults and to summarize the seismogenic structural conditions by geophysical prospecting methods,geological structural analysis and geomorphological analysis.With the continuous development of geophysical prospecting technology,the exploration of deep-seated faults will be realized,and more detailed information about the medium-deep-seated fault structure will be obtained,which will be of great guidance and reference significance for the study on the deep environment of the seismogenic zones and the causes of earthquakes.