柴达木盆地西南缘山前沙丘区沉积物地球化学特征及其指示意义
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张思悦, 李继彦, 张姚姚, 徐德华
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Geochemical characteristics and implications of sediments in the piedmont of southwestern Qaidam Basin, China
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Siyue Zhang, Jiyan Li, Yaoyao Zhang, Dehua Xu
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表3 研究区不同地貌单元表层沉积物微量元素含量(μg·g-1 )
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Table 3 Content of trace element in different landforms' surface sediments (μg·g-1 )
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样品 | GB(n=15) | | QJD(n=4) | | QD(n=15) | | R(n=17) | | L(n=2) |
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| 平均值 | 变异系数 | 平均值 | 变异系数 | 平均值 | 变异系数 | 平均值 | 变异系数 | 平均值 | 变异系数 |
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Cl | 1 937.61 | 1.51 | | 493.33 | 0.71 | | 162.11 | 0.76 | | 605.25 | 1.31 | | 206.40 | 0.75 | V | 49.17 | 0.19 | 42.73 | 0.36 | 33.02 | 0.23 | 47.75 | 0.29 | 28.70 | 0.14 | Cr | 43.07 | 0.26 | 30.35 | 0.45 | 24.31 | 0.30 | 35.57 | 0.39 | 17.10 | 0.35 | Co | 20.97 | 0.20 | 21.18 | 0.14 | 24.03 | 0.14 | 22.46 | 0.11 | 23.35 | 0.10 | Ni | 16.34 | 0.27 | 14.53 | 0.35 | 12.04 | 0.24 | 16.19 | 0.24 | 9.20 | 0.18 | Cu | 12.43 | 0.24 | 10.48 | 0.43 | 7.86 | 0.15 | 11.95 | 0.25 | 7.20 | 0.14 | Zn | 32.77 | 0.24 | 29.80 | 0.40 | 20.80 | 0.18 | 32.32 | 0.31 | 25.80 | 0.22 | Ga | 11.41 | 0.08 | 11.98 | 0.10 | 11.91 | 0.11 | 11.90 | 0.09 | 12.30 | 0.02 | As | 6.18 | 0.46 | 5.83 | 0.54 | 3.97 | 0.45 | 5.92 | 0.52 | 3.80 | 0.37 | Rb | 91.32 | 0.13 | 100.03 | 0.16 | 101.23 | 0.06 | 93.06 | 0.14 | 107.95 | 0.20 | Sr | 271.78 | 0.18 | 277.95 | 0.21 | 323.35 | 0.43 | 251.61 | 0.16 | 288.90 | 0.19 | Y | 18.43 | 0.14 | 16.05 | 0.24 | 14.11 | 0.16 | 17.35 | 0.26 | 13.90 | 0.32 | Zr | 264.35 | 0.42 | 215.53 | 0.73 | 103.30 | 0.22 | 190.23 | 0.50 | 120.95 | 0.19 | Nb | 10.07 | 0.14 | 9.10 | 0.16 | 8.39 | 0.21 | 9.95 | 0.25 | 7.05 | 0.29 | Ba | 555.85 | 0.09 | 590.48 | 0.05 | 622.24 | 0.06 | 557.42 | 0.13 | 700.90 | 0.10 | La | 32.46 | 0.22 | 30.48 | 0.23 | 30.27 | 0.17 | 33.17 | 0.16 | 37.05 | 0.17 | Ce | 68.26 | 0.27 | 64.10 | 0.29 | 65.15 | 0.23 | 69.30 | 0.17 | 80.30 | 0.16 | Pb | 18.86 | 0.30 | 16.78 | 0.17 | 15.73 | 0.14 | 18.24 | 0.06 | 18.00 | 0.04 |
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