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以川滇地区上中国地壳运动观测网络1998～2004年间的GPS观测成果为约束,基于地质学给出了块体划分模型,分别利用刚体运动模型、块体运动和形变模型反演了川滇地区内各活动块体的现今地壳运动和变形参数,并进一步对上述两种模型进行了辨识。结果表明,川滇地区的各块体用块体运动和形变模型来描述更为合适。通过对活动块体及断层运动进行讨论分析,认为川滇地区的地壳运动由西向东、由北向南逐渐减弱,且有顺时针旋转的特征,而地壳变形模式以连续和渐变的剪切为主要特征。
Based on the GPS observation results of the crustal movement observation network in China and Sichuan Province between 1998 and 2004, the block division model was given based on the geology. The rigid body motion model, block motion and deformation model were respectively used to inverse And the current crustal movement and deformation parameters of each active mass in the basin. The two models are further identified. The results show that it is more appropriate for the blocks in Sichuan-Yunnan region to be described by block motion and deformation models. Through the discussion and analysis of the active blocks and fault movement, it is considered that the crustal movement in Sichuan-Yunnan region decreases from west to east, from north to south, and rotates clockwise, while the crustal deformation mode is dominated by continuous and gradual shear feature.