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Magnetic Data Interpretation Using a New R-Parameter Imaging Method with Application to Mineral Exploration
Natural Resources Research ( IF 5.4 ) Pub Date : 2020-06-01 , DOI: 10.1007/s11053-020-09690-8
Salah Mehanee , Khalid S. Essa , Zein E. Diab

A new imaging method has been developed for elucidating the observed magnetic data gauged along profile. The method is based on the calculation of the correlation factor (the R-parameter) between the analytic signal of the measured magnetic anomaly and the analytic signal of the calculated response of some geometrically simple interpretive models in the confined category of sheets, cylinders, and spheres. The characteristic parameters (amplitude coefficient, depth, location, approximative shape of the buried structure, and effective angle of magnetization) of the interpretive model correspond to the maximum R-parameter value. The scheme has been verified on a number of noise-free synthetic examples and recovered the actual model parameters. Prior to applying the developed scheme to real-field examples, the accuracy of it has been carefully investigated on synthetic examples which are contaminated with realistic noise levels, interference effects, and regional field. Finally, the method has been successfully applied to three real-field data examples from the USA, Senegal, and Egypt for mineral exploration, and it is found that the obtained results are in good concordance with those obtained from drilling and/or the published literature.



中文翻译:

使用新型R参数成像方法的磁数据解释及其在矿物勘探中的应用

已经开发出一种新的成像方法,用于阐明沿剖面测量的磁数据。该方法基于计算出的磁异常的分析信号与某些几何上简单的解释模型在有限的板材,圆柱体和圆柱体中的响应的分析信号之间的相关因子(R参数)的计算。领域。解释模型的特征参数(幅度系数,深度,位置,掩埋结构的近似形状和有效磁化角)对应于最大R参数值。该方案已在许多无噪声的合成实例上得到验证,并恢复了实际的模型参数。在将开发的方案应用于实际示例之前,它的准确性已在受到实际噪声水平,干扰效应和区域场污染的合成示例中进行了仔细研究。最后,该方法已成功应用于美国,塞内加尔和埃及的三个实地数据实例进行矿物勘探,发现所获得的结果与从钻井和/或已发表的文献中获得的结果非常一致。 。

更新日期:2020-06-01
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