依据地壳均衡假说计算的异常称为重力均衡异常（isostatic gravity anomaly）。区域重力调查规范中列举的计算重力均衡异常的公式为：Δgj=ΔgB+δgj
用这个系统可以计算自由空间重力异常，布格重力异常和均衡重力异常值。
With this system one can compute the values of free-air gravity anomaly, Bouguer gravity anomaly and isostatic gravity anomaly.
均衡重力异常显示出中短波长特性，反映的是地壳上地幔物质分布的失衡和物质调整的动力学特征。
Isostatic gravity anomaly shows the character of middle - short wavelength, reflects unbalance of crust and upper mantle and dynamical character of substance adjusting.
陆壳构造薄弱带控制盆地的分布； 冲断作用后效、异常地幔侵壳、温度-弹性效应、剪切扩张和重力均衡为主要成盆作用；
The main factors of the basin formation are the after effects of thrusting, invading crust of abnormal mantle, temperature elastic effect, shear spread and gravitational equilibrium.
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