关键词: 鲜水河断裂带, 水平形变, 重复大地测量, 现今构造运动

Abstract: From the result of the repeated geodetic surveys on the network,across the Xianshuihe fault zone,the dynamic characteristics of recent tectonic movement along the fault zone are discussed in this paper.Possible models of block motion along the fault zone are studied based on the analysis of the geodetic horizontal deformation,the historic tectonic deformation and regional tectonic background.This study shows that the recent tectonic movement along the Xianshuihe fault zone is mainly characterized by nonuniform slips of the blocks on both sides of the fault in the same sense,and the geodetic deformation on the surface is in agreement with the left-lateral slips along the fault zone.

Key words: Xianshuihe fault zone, Horizontal deformation, Repeated geodetic survey, Recent tectonic movement