福建地区地块运动时空变化特征研究  

STUDY ON SPACE-TIME VARIATION CHARACTERISTICS OF CRUSTAL MOVEMENT OF TECTONIC BLOCKS IN FUJIAN AREA

作　　者：丁学仁[1] 胡新康[2] 刘序俨[1] 

机构地区：[1]福建省地震局,福州350003 [2]中国地震局第一监测中心,天津300180

出　　处：《大地测量与地球动力学》2006年第2期58-61,共4页Journal of Geodesy and Geodynamics

摘　　要：为了研究福建地区活动地块边界带的运动及块体内部变形规律,利用5期GPS观测资料(1995、1997、1999、2001、2003年)计算了福建块体的趋势性差异运动年变速率、优势水平运动年速率,以及在区域无整体旋转基准下各GPS测点运动速率。GPS网5期观测的不同测点速率随时间序列变化结果显示福建活动块体整体向东南方向运动,而块体内部形变量较小(约1mm/a)。On the basis of the observation data rate of the tendentious differential movement of the for five measurement campaigns form 1995 to 2003, the annual Fujian block, the annual rate of preponderant horizontal movement and the movement rate of each GPS point under the datum of regional non-net rotate are calculated in order to investigate the rule of the border movement between active blocks and of the deformation inside the blocks. The resuits of sequential time variation of the rates at different points for five campaigns show that the Fujian active block, as a whole, is moving southeast, wards and the magnitude of inner deformation is smaller（ about 1mm/a）.

关 键 词：块体运动 GPS 年变速率 边界带运动 福建地区 

分 类 号：P227[天文地球—大地测量学与测量工程] P315.725[天文地球—测绘科学与技术]