摘要
采用综合震源机制方法,利用5 002条P波极性数据反演黑龙江地区二维应力结构,求得该区0.5°×0.5°综合震源机制解。初步研究表明:21世纪以来,构造应力场总特征基本一致,具有明显的继承性,主压应力和主张应力的优势方向明显,与板块运动关系具有成因上的联系。
We used the 5 002 P wave polarity data in Heilongjiang Province, two-dimensional stress structure is invered and 0.5°×0.5° focal mechanism solutions are obtained by the composite focal mechanism method. The preliminary study shows that： the tectonic stress field charac- teristics is uniformity since twenty-first century. It has obvious inheritance. The predomi- nant direction of the main pressure stress and tensile stress is evident. It can be contributed to plate movement in the region.
出处
《地震地磁观测与研究》
2014年第5期72-75,共4页
Seismological and Geomagnetic Observation and Research
基金
中国地震局星火计划(XH12014)资助
关键词
P波极性数据
震源机制
构造应力场特征
板块运动
P wave polarity data, focal mechanism, characteristics of tectonic stress field, plate movement
