高精度磁测找矿效果:以青海尕林格矿区为例

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青海尕林格铁矿区由于地表有近200m覆盖层,磁法勘探是直接而有效的方法。但是由于覆盖层厚,矿体埋深大,造成磁异常形态简单,难以进一步分析深部是否存在盲矿体。笔者在前人工作的基础上,运用小波多尺度方法分析了该区的平面磁异常,发现小波5阶细节(场源似深度600m)为矿异常特征,推断了该区深度500m以下可能存在磁铁矿体。在此基础上利用二度半任意截面水平柱体人机交互反演进一步解释证实了深部有隐伏铁矿体存在。小波分析与人机交互反演方法等方法技术为扩大尕林格矿区远景储量提供了新思路。
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