大比例尺地球化学勘查技术在隐伏矿找矿实践中的应用——以内蒙古乌拉特后旗查干德尔斯大型钼矿为例
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王满仓, 王疆涛, 彭海练, 李维成, 李秉强, 曾忠诚
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The application of large-scale geochemical prospecting technique to the prospecting for concealed ore deposits:A case study of the Chagandeersi large molybdenum deposit in Urad Rear Banner, Inner Mongolia
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Man-Cang WANG, Jiang-Tao WANG, Hai-Lian PENG, Wei-Cheng LI, Bing-Qiang LI, Zhong-Cheng ZENG
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表1 查干德尔斯地区沟系土壤测量地球化学特征参数统计
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元素 | Au | Ag | Cu | Pb | Zn | As | Sb | Hg | Mo | W | Sn | Bi | 剔除后平均值 | 0.49 | 42.85 | 16.08 | 23.94 | 33.99 | 3.20 | 0.28 | 5.03 | 2.96 | 2.38 | 2.01 | 0.48 | 剔除后标准离差 | 0.11 | 6.82 | 12.44 | 5.42 | 16.23 | 1.56 | 0.09 | 1.04 | 1.95 | 1.71 | 0.73 | 0.29 | 异常下限理论值 | 0.71 | 56.49 | 40.96 | 34.78 | 66.45 | 6.32 | 0.46 | 7.11 | 6.86 | 5.8 | 3.47 | 1.06 | 异常下限使用值 | 0.8 | 60 | 40 | 40 | 60 | 6 | 0.5 | 12 | 10 | 5 | 3 | 2 | 内蒙古背景值 | 1.44 | 50.00 | 12.74 | 16.20 | 35.45 | 7.90 | 0.74 | 13.32 | 0.84 | 1.07 | 2.12 | 0.21 | 剔除异常值点数 | 23 | 38 | 15 | 18 | 12 | 13 | 23 | 59 | 71 | 13 | 5 | 78 | 剔除前平均值 | 0.75 | 50.56 | 19.19 | 28.8 | 38.26 | 4.30 | 0.33 | 8.23 | 8.21 | 3.26 | 2.09 | 4.82 | 矿化蚀变叠加强度 | 35.2 | 44.84 | 17.90 | 21.65 | 13.51 | 17.47 | 27.11 | 96.53 | 196.9 | 17.81 | 5.20 | 783.2 | 剔除前变异系数 | 2.81 | 0.46 | 0.94 | 0.83 | 0.69 | 2.76 | 0.74 | 0.95 | 1.38 | 2.34 | 0.74 | 3.51 | 剔除前标准离差 | 2.10 | 23.35 | 17.94 | 23.96 | 26.57 | 11.88 | 0.25 | 7.86 | 11.30 | 7.64 | 0.98 | 16.92 | 相对富集系数 | 0.34 | 0.86 | 1.26 | 1.48 | 0.96 | 0.41 | 0.38 | 0.38 | 3.52 | 2.22 | 0.95 | 2.29 |
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