南秦岭地区水沟口组黑色岩系地层地球化学特征及其找矿意义
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游军, 曹宏远, 张锋军, 蔡文春, 李景晨, 佘鹏涛
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Geochemical characteristics of strata of Lower Cambrian Shuigoukou Formation in Southern Qinling and their implications for prospecting
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Jun YOU, Hong-Yuan CAO, Feng-Jun ZHANG, Wen-Chun CAI, Jing-Chen LI, Peng-Tao SHE
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表1 水沟口组元素特征参数
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元素 | 最小值 Xmin | 最大值 Xmax | 平均值
| 标准离差 δ1 | 背景值 C0 | 标准离差 δ2 | 变化系数 Cv | 区域背景 X1 | 富集系数 k1 | 叠加强度 系数k2 | V | 46 | 34969 | 3781 | 5105 | 105 | 40 | 1.4 | 70 | 54.0 | 4595 | Co | 0.9 | 165.0 | 7.9 | 16.3 | 3.2 | 1.7 | 2.1 | 10.5 | 0.8 | 23.7 | Au | 0.5 | 110.0 | 5.3 | 11.4 | 1.8 | 3.6 | 2.2 | 0.8 | 6.6 | 9.3 | Ag | 0.02 | 7.97 | 1.91 | 1.52 | 1.91 | 1.52 | 0.8 | 0.05 | 38.2 | 1.0 | U | 1.0 | 131.0 | 20.4 | 24.8 | 9.2 | 23.2 | 1.2 | | | 2.4 | Cu | 10 | 1907 | 176 | 281 | 65 | 179 | 1.6 | 12 | 14.7 | 4.3 | Pb | 1.0 | 257.0 | 24.8 | 30.8 | 10.4 | 3.3 | 1.2 | 11.3 | 2.2 | 22.3 | Zn | 2 | 24516 | 507 | 2199 | 74 | 166 | 4.3 | 32 | 15.8 | 90.8 | W | 0.4 | 12.5 | 2.3 | 2.1 | 1.4 | 0.5 | 0.9 | 1.1 | 2.1 | 6.9 | Mo | 0.3 | 202.1 | 16.7 | 32.3 | 2.4 | 2.1 | 1.9 | 0.4 | 41.8 | 107 | Ni | 11 | 2049 | 117 | 244 | 28 | 13 | 2.1 | 23 | 5.1 | 78.4 | Ru | 0.03 | 4.36 | 0.67 | 0.9 | 0.37 | 0.4 | 1.3 | | | 4.1 | Rh | 0.02 | 3.62 | 0.48 | 0.6 | 0.23 | 0.5 | 1.2 | | | 2.5 | Pd | 0.02 | 159.70 | 22.07 | 28.4 | 9.57 | 28.5 | 1.3 | | | 2.3 | Os | 0.01 | 24.44 | 2.30 | 3.4 | 0.29 | 0.2 | 1.5 | | | 134.8 | Ir | 0.02 | 3.09 | 0.20 | 0.4 | 0.12 | 0.1 | 2.1 | | | 6.7 | Pt | 0.01 | 48.06 | 6.45 | 7.8 | 1.00 | 0.6 | 1.2 | | | 83.9 |
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