大地测量与地球动力学2003，Vol.23Issue(z1)：62-68,7.
GPS DATA INVERSION OF KINEMATIC MODEL OF MAIN FAULTS IN YUNNAN
GPS DATA INVERSION OF KINEMATIC MODEL OF MAIN FAULTS IN YUNNAN
摘要
Abstract
On the basis of GPS observations in Yunnan from 1999 to 2001, we adopt the robust Bayesian least square estimation and multi-fault dislocation model to analyze the quantitative kinematics models of the main faults in Yunnan. The geodetic inversion suggests that: (1) The horizontal movement of crust in Yunnan is affected distinctly by fault activity whose characters are consistent with geological results; (2) The activity of the north segment of the Red River fault zone is maximum, in the middle segment is moderate, and in the south segment is minimum; (3)Among others, the Xiaojiang fault zone has the strongest activity, the secondary are the Lancang fault zone and the north segment of Nujiang fault zone, the Qujiang fault zone shows the characteristic of hinge fault; (4)Each fault could produce an earthquake of Ms=6 more or less per year; (5) The larger value of maximum shear strain are mostly located along the main active fault zones and their intersections; earthquakes did not occur at the place of maximum shear strain, and mostly take place at the higher gradient zones, especially at its corner.关键词
Yunnan/GPS data/robust-Baysian least squares estimation/fault movementKey words
Yunnan/GPS data/robust-Baysian least squares estimation/fault movement分类
天文与地球科学引用本文复制引用
Shen Chongyang,Wu Yun,Wang Qi,You Xinzhao,Qiao Xuejun..GPS DATA INVERSION OF KINEMATIC MODEL OF MAIN FAULTS IN YUNNAN[J].大地测量与地球动力学,2003,23(z1):62-68,7.基金项目
Supported by National Natural Science Fund (40074024), National‘Tenth Five-year Project of S. and T.' (2001BA601B02). National ‘973' Project(G1998040703) and Seimogical Science Joint Fund(101005). （40074024）
