摘要
介绍利用中国地壳运动观测网络区域网(包括基本网与基准网)1999年与2001年2期GPS观测所获得的中国大陆地壳水平位移速率结果,研究块体的划分、块体位移与块体变形,提出了用位移(速率)离散度分析块体或局部水平变形强度的方法,分析了中国大陆现今地壳运动的基本特征及2001年11月14日昆仑山口西8.1级大地震前的地壳水平运动。
The result of horizontal crustal movement in China′s continent, obtained from 2 epochs of GPS observation in the regional network (including the basic network and the fiducial network) of the Crustal Movement observation Network of China (CMONOC) carried out in 1999 and 2001, is introduced. Division of blocks and their deformations are analyzed. An approach to analyze the intensity of horizontal crustal deformation in localized areas or on blocks in term of displacement velocity dispersion is proposed. The general characteristics of the recent horizontal crustal movement in China's continent and the horizontal crustal movement before the Kunlun Mountain earthquake with M8.1 on Nov. 14, 2001 are analyzed.
出处
《地震》
CSCD
北大核心
2004年第2期1-6,共6页
Earthquake
基金
国家重点基础研究发展规划资助项目(95 13 03 07)
关键词
GPS观测
地壳形变
地壳运动
块体
区域网
Crustal movement
GPS
Intensity of horizontal deformation
Block
Regional network
