摘要
以断层活动引起的水平位移、高程变化、重力变化为反演基本数据,研究3种数据联合反演断层滑动参数的定权问题。分别对断层走滑、倾滑、张性活动为主相对权比问题进行数值模拟,结果表明:1)走滑断层水平位移的权最大,重力变化的权次之,高程变化的权最小;2)倾滑断层高程变化的权大于重力的权;3)张性断层重力变化的权最大,高程变化的权次之,水平位移的权最小。
The relative weight ratio taking fault slip characteristics into account was investigated when inversion with horizontal displacement, elevation changes and gravity variations. Numerical simulation experiments for the activities of the strike-slip fault, dip-slip fault and extension fault are carried out respectively. The results show that ： 1 ） The relative weight ratio of the horizontal displacement plays a dominant role in the case of strike-slip fault; 2）The relative weight ratio of the elevation changes is bigger than the gravity change＇ s on the dip-slip fault ; 3 ） The relative weight ratio of gravity variations is biggest in the case of extension fault.
出处
《大地测量与地球动力学》
CSCD
北大核心
2009年第6期18-21,共4页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40674001)
关键词
多种数据反演
断层滑动特征
相对权比
水平位移
高程变化
重力变化
inversion of various type of data
characteristics of fault slip
relative weight ratio
horizontal displacement
elevation changes
gravity variations
