摘要
通过分析重力异常的特征，并结合地壳上地幔的物质结构，研究了天山地区的重力作用和结构力源，探讨了重力均衡补偿与现代构造运动的联系，对未来构造活动的趋势做出判断。一些迹象表明，除了板块之间的水平作用力以外，地幔热物质的上涌也是影响天山地区构造活动的原因之一。
Based on analysing the characteristics of gravity anomalies and material structures of upper mantle in crust,both gravity action and structural force source in Tianshan were studied,relationship between gravity isostasy compensation and recent tectonic movement was probed,and a judgement to the trendency for structural movement in future was obtained.Some information show,besides plate collisions,therrnal mantle material upwelling is one of the reasons to effect structural movement in Tianshan.
出处
《内陆地震》
1996年第3期209-216,共8页
Inland Earthquake
关键词
重力均衡
天山
构造运动
重平衡
Tianshan Gravity anomaly Upper mantle Tectonic movement Gravity compensation Gravity equilibrium
