向上延拓对斜导数方法处理航磁异常的影响  

THE EFFECTS OF THE UPWARD CONTINUATION ON THE APPLICATION OF TILT DERIVATIVE METHOD TO AEROMAGNETIC DATA PROCESSING

作　　者：郭华[1] 王明[1] 谢汝宽[1] 安战锋[1] 

机构地区：[1]中国国土资源航空物探遥感中心,北京100083

出　　处：《物探与化探》2012年第1期137-143,共7页Geophysical and Geochemical Exploration

基　　金：国家"863"计划重大项目(2006AA06A201);中国国土资源航空物探遥感中心青年创新基金课题(2010YFL001)共同资助

摘　　要：分析了中国南部某地利用斜导数方法处理航磁数据时遇到的问题,由于受到浅源磁干扰场的影响,用斜导数方法处理后的航磁数据异常形态复杂,从而影响地质解释效果。为此提出了向上延拓与斜导数方法联合使用的改进办法,通过实例阐述了应用斜导数方法处理航磁数据应注意的问题。改进后的方法,能充分体现航磁资料在地质解释方面的优势。The problems encountered in the application of tilt derivative method to aeromagnetic data processing have been analyzed in this paper.Influenced by the shallow-source interference field,the shape of the aeromagnetic data anomaly processed by the tilt derivative method is complex.An improved method that combines the upward continuation with tilt derivative is therefore put forward in this paper.With practical examples,this paper deals with the problems that are worthy of attention in the application of tilt derivative method to aeromagnetic data processing.The improved method can fully manifest the advantages of the aeromagnetic data in the aspect of geological data interpretation.

关 键 词：向上延拓 斜导数方法 航磁异常 

分 类 号：P631[天文地球—地质矿产勘探]