摘要
根据大陆均衡理论,对由艾里(Airy)大陆均衡模型计算的理论均衡地壳厚度(D)和实际布格重力异常反演得到的地壳厚度(M)进行比较,探讨北祁连河西地区的地壳均衡状态。结果表明,该地区理论大陆均衡地壳厚度均大于实际地壳厚度,地壳处于不均衡状态。
On the basis of crustal gravity isostasy theory,the theoretic isostatic crustal thickness（D） with Airy＇s isostatic model in Hexi area was computed.In the same time,real crustal thickness（M） from the Bouguer gravity data was inverted,and then compared these two thicknesses with each other for researching crustal isostatic stability.The results indicate that the value D is generally larger than the value M and it means that the crust is in a monisostatic state.
出处
《大地测量与地球动力学》
CSCD
北大核心
2011年第3期38-41,共4页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40874035)
关键词
河西地区
地壳结构
布格异常
垂直形变
重力均衡
Hexi area
crustal structure
Bouguer anomaly
vertical deformation
effect of gravity isostasy
