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    • 安徽省庐江县泥河铁矿重磁异常特征

    汪青松,吴明安,袁平,何柳昌

    Geology and Exploration（2012）

    Geological Exploration Technologies Institute of Anhui Province | Geological Survey of Anhui Province

    Cited 24|Views9
    Abstract
    泥河铁矿是应用理论找矿、验证磁异常发现的一处大型铁、硫火山岩型矿床。被中国地质调查局评为2008年度十大发现之首,是地质找矿新机制"泥河模式"矿床。重磁勘探在该矿床的发现和普查的过程中发挥了重要作用,重磁异常特征倍受关注。泥河铁矿位于鼻状重力高异常区,剩余重力异常与矿体分布相吻合;原始地磁场以存在△T负异常为特征,△T正异常松散、零乱,与周边异常无明显区别;△T化极异常强度低,经上延或滤波等信息提取处理后形态较好,与矿体分布一致,是验证和矿床普查布钻的重要依据,定量反演计算也在矿床普查过程中发挥了作用。
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    Key words
    Nihe iron deposit,gravity and magnetic anomalies,Lujiang County,Anhui
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    【要点】：本文研究了安徽省庐江县尼尔铁矿床的的重力和磁异常特性，提出了利用这些特性进行有效矿产勘探的“尼尔模型”，为地质勘探提供了新的机制。
    

    【方法】：通过分析重力和磁异常数据，将异常特性与矿体分布相联系，运用定量反演计算方法确定矿体位置。
    

    【实验】：在尼尔铁矿床地区进行重力与磁法测量，使用的数据集为该地区的重力异常和磁异常数据，实验结果表明矿体分布与重力和磁异常特征具有一致性。