海城区

中国海城地震区地壳与上地幔构造特征的研究

Research on tectonic characteristics of the crust and upper mantle in Haicheng seismic area

本法的有效性用海城地震区的试验资料进一步得到证明。

The validity of this method has been further confirmed by the test results of Haicheng earthquake area .

比较海城地震区已知的其它地球物理资料后，给出了该地区地球物理资料的综合解释剖面。

Comparing with other known geophysical data of the Haicheng seismic area , we give a geophysical section of synthetic interpretation .

本文根据对海城地震区三条深地震测深剖面资料的综合解释，获得了该震区似三维空间内的地壳与上地幔分层构造与速度分布特征。

In this paper , The Characteristics of quasi - 3D layered structure and the velocity distribution of the crust and the upper mantle have been obtained in Haicheng Seismic area according to the synthetic interpretation of DSS data from three profiles in the area .

在海城地震区，主压应变率为1.276×10-9/yr，小于主张应变率（2.940×10-9/yr），地壳以张应变为主；

In Haicheng earthquake region , the principal compressive strain rate ( 1.276 × 10 ~ ( - 9 ) / yr ) is smaller than the tensile strain rate ( 2.940 × 10 ~ ( - 9 ) / yr ), where is dominated by tensile strain ;

海城地震震源区恰好位于这样一个塑性状态的介质层上部。

The focal region of the Haicheng earthquake is situated right in the upper part of that plastic layer .