摘要
本文据根GEM 10 B地球模型计算得到的卫星自由空间重力异常,分析了上地幔物质流运移的动力学关系。对在青藏高原上地壳的楔入作用影响下,上地幔物质流的运移状态及所造成的地壳形变进行了讨论。并对中国西南部壳体强烈的地壳形变以及频繁的地震活动的力源机制问题进行了探讨。
In the light of the free spatial gravitational anomalies calculated from the GEM1OB satellite model, this paper analyses the dynamics of the moving of the upper mantle. Under the effect of Qinghai-Tibet plateau inserting into the upper mantle, the movement of the upper mantle flow and the deiormation of the crust is discussed. The author tries to investigate the force source causing the drastic crustal deformation and frequent seismic activities in southwest China.
出处
《地震研究》
CSCD
北大核心
1990年第2期173-180,共8页
Journal of Seismological Research
关键词
上地幔
物质流
地壳
形变
震源机制
Upper mantle flow, Divergence flow, Convergence flow, Gravitational anomalies, Crustal deformation, Southwest China
