利用迭代反演方法解决变磁性磁界面反演问题  

Using iterative inversion method to resolve the invertion problem of varying magnetisation interface

作　　者：张向宇[1] 吴健生[2] 

机构地区：[1]广州海洋地质调查局,广州510760 [2]同济大学海洋地质国家重点实验室,上海200092

出　　处：《物探化探计算技术》2014年第1期35-43,共9页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家"863"高技术研究发展计划资助项目(2010AA09Z302)

摘　　要：南海地层岩石磁性在横向上呈现较大差异,而目前常用的磁界面反演方法多是针对常磁性磁界面进行的,若直接将其应用于南海这样磁性差异较大的地区,则反演结果中必定会带进很大误差。通过引入滑动时窗,对较常用的磁界面迭代反演方法进行研究和改进,获取适用于变磁性磁界面深度反演的方法,提供了一个可用于解决此种情况的方法手段。South China sea is the biggest marginal sea of the Pacific rim,it came through complex tectogenesis,make the transverse magnetization of the rocks different,but the common inversion method are almost for stable magnetic interface.If use them to a region such as South China sea without modification it will bring large errors.So there is a big challenge for the conventional inversion method.Based on common iterative inversion method,research and then improvement are made for it by using slipping time window.Finally we can obtain an iterative inversion method for varying magnetization magnetic interface to find out a method for similar conditions.These discussions can give more information for the further research in the future.

关 键 词：南海东北部 磁界面反演 磁性基底 

分 类 号：P318.2[天文地球—固体地球物理学]