实测航磁ΔT三维梯度与由ΔT数据换算的三维梯度数据的异同  

Difference of the measured 3-dimension ΔT gradient of air magnetic survey and conversion of the 3-dimension ΔT gradient

作　　者：线纪安 郭玉峰[1] 梁建[1] 陈冬[1] 

机构地区：[1]中国冶金地质总局地球物理勘查院,河北保定071051

出　　处：《地质找矿论丛》2013年第2期297-300,共4页Contributions to Geology and Mineral Resources Research

基　　金：2009年度国家科技支撑计划项目(编号:2009BAB43B01)资助

摘　　要：文章通过实测航磁ΔT三维梯度数据与与由航磁ΔT换算出的三维梯度数据的比较,找出其差异,并解释了引起差异的原因。得出在我国目前技术条件下,在需要用航磁ΔT三维梯度数据时,只需实测航磁ΔT的横向水平梯度,其余2个方向梯度值可用由ΔT值换算得出,即可达到解释要求。Data of the measured 3-dimension △T gradient of air magnetic survey and data of conversion of the 3-dimension AT gradient are compared and difference is shown then causes of the difference are explained and the conclusion is made that under current technical condition if data of the 3-dimension △T gradient are needed only the traverse horizontal gradient is measured the gradient of other two directions could be obtained by conversion that would meet deeds of interpretation.

关 键 词：航磁异常 航磁ΔT三维梯度 航磁ΔT垂直梯度 航磁ΔT横向水平梯度 航磁ΔT纵向水平梯度 

分 类 号：P631.222[天文地球—地质矿产勘探]