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在山区工作,地形影响是客观存在的,对测得的重力资料,如不注意分析、研究和消除地形影响,仍用水平观测面上所建立的一套正、反演概念,不仅定量、半定量解释,甚至定性解释,也会得出错误的结论.重力资料的地形校正和地面磁测资料的地形校正一样,都是一种曲面延拓问题,即根据起伏地形上测得的重力异常,求得水平线或水平面上的重力异常值问题.所以,地面磁测解释工作中所用的各种地形改正方法均可应用于重力资料解释.由于
In mountain work, the terrain impact is an objective reality. If we do not pay attention to analyzing, studying and eliminating the terrain effects, we still use the set of positive and inverse concepts established on the horizontal observation surface. Not only the quantitative and semi- Quantitative interpretation, even qualitative interpretation, will lead to wrong conclusions.Gravity data of the terrain correction and terrestrial magnetic data, as the topography correction, is a surface extension problem, that is, based on the terrain and terrain measured gravity anomalies, So as to obtain the problem of gravitation anomaly on horizontal line or horizontal plane.Therefore, all kinds of terrain correction methods used in the interpretation of terrestrial magnetic measurements can be applied to the interpretation of gravity data.