在Pilkington单层界面重磁同步联合反演工作的基础上,结合新一轮油气勘探对揭示新生界基底和结晶基底界面深度的需要,抓住中间层厚度、中心位置的变化与异常的关系提出了双层界面的重磁联合反演方法,通过理论模型的试验和实际例子的应用,说明了方法的有效性,也讨论了关键参数对算法的影响。 Based on the Pilkington monolayer interface gravity and magnetic synchronization joint inversion work, combined with the new round of oil and gas exploration to reveal the depth of the interface between the Cenozoic basement and the crystalline basement need to seize the middle layer thickness, the relationship between the center of the changes and the anomalies The method of gravity-magnetic joint inversion of double-layer interface is introduced. The effectiveness of the method is illustrated through the experiment of the theoretical model and the practical examples. The influence of the key parameters on the algorithm is also discussed.