• 责任者：Liu Xia (State Key Laboratory of Earthquake Dynamics ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Ma Jin
• 刊名：Chinese Journal of Geophysics
• 出版年：2010
• 卷期：53(6)
• 关键词：大陆动力学 ; continental dynamics ; 地壳运动 ; crustal movement ; 华北地区 ; North China
• 页码：p.1418-1427
• 图表：5 illus., 3 tables, 19 refs.
• 分类号：0300
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

Using GPS and across-fault deformation survey data of this region, the tectonic movement of North China Region is simulated by finite element method aimed to study its present-day crust movement and deformation dynamics. The results show that the surface movement and stress field are largely determined by the relative movement between the surrounding tectonic blocks. On the other hand, the inhomogeneous distribution feature of the surface speed field can be simulated better when considering the differential horizontal motion and bottom dragging of lithosphere. This implies that the Pacific Plate subduction or the India-Eurasia collision may induce convection beneath continental lithosphere, causing the lower part moving faster than the upper part. Such differential movement fashion exerts very large influence on the regional dynamic process. The results also show that topography gravity, faults distribution and lateral inhomogeneity of the rheology structure have certain effect on the dynamic process as well.