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Numerical process applied to analysis of 2d map of resistivity data in moroccan phosphate basin

机译:摩洛哥磷酸盐盆地电阻率数据2D地图分析的数值过程

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In the great Oulad Abdoun Basin exploitation of a new phosphate deposit was begun after the Grand Daoui horizon was exhausted. Inclusions of sterile hardpan-so-called "disturbances" -are hard to detect and interfere with phosphate extraction. Their resistivity is above 200 Ωm as against 80 to 150 Ωm for the phosphate-rich mineral. A Schlumberger resistivity survey over an area of 50 hectares was carried out. Numerical process using classical tools based on Fourier analysis was applied to process 2D resistivity data. Models of the geology were successfully obtained from the analysis of the horizontal-gradient map of "disturbances". A new field procedure was tested to estimate the depth of disturbances. Phosphate reserves were better known.
机译:在Grand Daoui Horizo​​ n筋疲力尽后,在大型Oulad Abdoun Basin开发新的磷酸盐矿床。无菌性硬化蛋白所谓的“扰动”的含量 - 难以检测和干扰磷酸盐萃取。它们的电阻率高于200Ωm,为富含磷酸盐的矿物质的80至150Ωm。开展了50公顷面积的钢板电阻率调查。应用了基于傅立叶分析的经典工具的数值处理来处理2D电阻率数据。从“扰动”水平梯度图的分析中成功地获得了地质模型。测试了新的现场程序以估计干扰深度。磷酸盐储备更清楚。

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