%0 Journal Article
%T Relocated seismicity in Big Beijing area and its tectonic implication<br>首都圈地震活动构造成因的小震精定位分析
%A LI Le
%A CHEN Qi-fu
%A CHEN Yong
%A <br>李乐
%A 陈棋福
%A 陈颙
%J 地球物理学进展
%D 2007
%I 
%X The earthquakes occurred in the studied area from 1980 to 2004 were relocated by the double-difference location method.The relocated seismicity is clearly associated with regional tectonics,and is also in agreement with the existence of deep faults imaged by wide-angle and deep seismic reflection profiling.The vast majority of the earthquakes are located in the upper and middle crust,which implies the two potential seismotectonic mechanisms with deep dynamics and local tectonic blocks motion and deformation.The moderate and strong earthquakes tend to occur in the brittle upper crust and ductile-brittle transition in the lower crust.The seismic activities also demonstrate the pattern of seismic gaps and some potential traces of the steep-inclined buried faults in the Big Beijing area.
%K the double difference algorithm
%K seismotectonics
%K deep fault
%K Big Beijing area
%K brittle-ductile transition zone<br>双差定位法
%K 地震构造
%K 深大断裂
%K 首都圈
%K 脆-韧性转换带
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=65CE641AB2DEAAF8B2D39ECB6B6B6C80&aid=BC0EAAC81D32764F&yid=A732AF04DDA03BB3&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=B91E8C6D6FE990DB&eid=339D79302DF62549&journal_id=1004-2903&journal_name=地球物理学进展&referenced_num=5&reference_num=28