中国地区水平地壳形变模型的建立

Establishment of China horizontal crustal deformation models

我国大陆板块是欧亚大陆板块的重要组成部分，其板块运动剧烈，地质构造复杂，是全球研究板块运动的重要地区。本文通过对各个块体分别建模和解算，得出结论：中国地区除东北块体相对于欧亚板块不动外，其他块体均有不同程度的形变运动，东部形变较小，西部形变较大；华北块体总体上以大约6mm／a的速率向东运动；华南块体以约5～8mm／a的速率向东南方向运动；新疆块体以约10～15mm／a的速率向北东方向运动；西藏块体也向北东方向运动，但运动速率从南到北逐步减少。

Chinese mainland block, as an important componeut of Eurasia plate, with intense crustal movement and complex geological structure, has always been a focus area in global plate research. This paper gives every sub-block of Chinese mainland blocks a specific model and corresponding calculation. The conclusion shows that all sub-blocks but the northeastern China block have respective deformation movement at different levels and deformations in the eastern part of China are greater than those in the west. Generally speaking, northeastern China block moved eastward for about 6mm/a; southeastern China block moved southeastward for about 5 8mm/a; Sinkiang block, 10 - 15mm/a northeastward; The Tibetan area, also northeastward, but the moving speed decreases gradually form south to north.