Joint inversion of gravity and magnetic data for a two-layer model  

双层界面重磁联合反演方法研究(英文)

作　　者：江凡[1] 吴健生[1] 王家林[1] 

机构地区：[1]同济大学海洋地质国家重点实验室,上海200092

出　　处：《Applied Geophysics》2008年第4期331-339,共9页应用地球物理（英文版）

基　　金：Supported by the National Natural Science Foundation of China(Grant No.40674063);National Hi-tech Research and Development Program of China(863Program)(Grant No.2006AA09Z311)

摘　　要：Based on the synchronous joint gravity and magnetic inversion of single interface by Pilkington and the need of revealing Cenozoic and crystalline basement thickness in the new round of oil-gas exploration, we propose a joint gravity and magnetic inversion methodfor two-layer models by concentrating on the relationship between the change of thicknessI and position of the middle layer and anomaly and discuss the effects of the key parameters. Model tests and application to field data show the validity of this method.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。

关 键 词：Two-layer model joint inversion of gravity and magnetic data Cenozoic andcrystalline basement 

分 类 号：P618.130.8[天文地球—矿床学]