in this paper, the map of isostatic gravity anomaly in the northwest of yunnan province and its adjacent region are compiled by mechanism assumed ainy-heiskanen, using the circular model.
本文以爱黎-海斯卡宁均衡补偿假设模式为基础,利用圆模板编制了滇西北及邻区均衡重力异常图。
deducting topography - isostatsy compensation gravity and geoid anomalies from free air gravity anomaly and surveyed geoid anomaly, we can obtain isostatic gravity anomaly and isostatic geoid anomaly.
isostatic gravity anomaly shows the character of middle - short wavelength, reflects unbalance of crust and upper mantle and dynamical character of substance adjusting.
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。
deducted topography-isostasy compensation gravity, geoid anomalies from observed free air gravity and geoid anomalies, isostatic gravity anomaly and isostatic geoid anomaly could be obtained.
isostatic gravity anomaly shows middle-short wavelength character, reflects mass distribution imbalance and mass adjust dynamical character in crust and upper-mantle.