摘要
利用云南中部地区1992、2001、2006年3期精密水准复测资料以及1999—2007年数期GPS资料,分析该区近年来地壳形变状态与特征。结果表明:云南中部地区近期整个形变场差异运动显著,呈逆继承运动特征,反映出区域应力场变化的态势;GPS结果表明,印尼地震对川滇地区有明显的影响,同时可能对汶川地震的发生具有某种程度的催化作用。
With the use of repectedly measured level data in three periods： 1992,2001 and 2006 , and GPS data in several periods from 1999 to 2007 in the median region of Yunnan, this paper analyzes the status and characteristics of crustal deformation in this area are analyzed. The results suggest that differential movement of the whole deformation field in median region of Yunnan is obvious and manifests itself of a characteristic of non-inherit, and this reflects that the regional strain field has changed to some extent; the GPS results suggest that Indonesia earthquake has an obvious effect on Sichuan and Yunnan Area, and probably has an catalysis function on the happence of Wenchuan earthquake to certain extent.
出处
《大地测量与地球动力学》
CSCD
北大核心
2009年第6期64-67,共4页
Journal of Geodesy and Geodynamics
基金
国家科技攻关计划(200BAC44B02)
中国地震局强化华北地区强震监视跟踪项目
关键词
云南地区
地壳形变
GPS
印尼地震
汶川地震
Yunnan area
crustal deformation
GPS
Indonesia earthquake
Wenchuan earthquake
