重力异常是地下诸地球物理因素的综合反映,因此,数据处理对异常的推断解释显得特别重要。重力测量的数据处理方法较多,根据具体情况选用不同的方法,为了突出不同深度不同大小的异常,从而作出最合理的地质解释,经过近几年来的工作实践,我们用平均重力差值异常法解释重力异常取得了较好的地质找矿效果。地面观测到的重力异常随着地质体埋深增大而衰减。深而大的地质体,在不同的深度异常特征变化较少;而浅而小的地质体,在不同的深度异常特征将急剧变化。根据这一规律, Gravity anomaly is a comprehensive reflection of earth’s geophysical factors. Therefore, data processing is particularly important for the interpretation of anomalies. Gravity measurement of data processing methods are more, depending on the circumstances choose different methods, in order to highlight the different depths of different sizes of anomalies, so as to make the most reasonable geological interpretation, after years of work practice, we use the average gravity difference anomaly Interpretation of gravity anomalies made better geological prospecting effect. The observed gravity anomaly on the ground decays with the increase of the buried depth of the geological body. The deep and large geologic bodies have less variation in the anomalous features at different depths, while the shallow and small geologic bodies will dramatically change in the anomalous features at different depths. According to this law,