河西走廊酒东沙地风沙沉积物理化特征及其环境意义
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郭雪阳, 杨林海, 程良清, 胡光印, 胡菁菁
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Physical and chemical characteristics of aeolian sands in Jiudong Sandy Land of Hexi Corridor and its environmental significance
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Xueyang Guo, Linhai Yang, Liangqing Cheng, Guangyin Hu, Jingjing Hu
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表1 酒东沙地及中国主要沙漠表层风沙沉积物常量元素含量(%)
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Table 1 Major element contents of aeolian sand sediments on the surface of Jiudong Sandy Land and other deserts in China (%)
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采样点 | SiO2 | Al2O3 | Fe2O3 | MgO | CaO | Na2O | K2O |
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JD-1-1 | 68.92 | 6.9 | 2.22 | 1.36 | 2.80 | 1.86 | 1.53 | JD-1-2 | 66.95 | 7.28 | 2.61 | 1.59 | 3.65 | 1.95 | 1.57 | JD-1-3 | 68.52 | 7.06 | 2.36 | 1.51 | 3.30 | 1.86 | 1.59 | JD-2-1 | 60.21 | 7.91 | 4.09 | 2.59 | 6.58 | 2.06 | 1.45 | JD-2-2 | 71.83 | 7.26 | 2.06 | 1.48 | 3.21 | 2.07 | 1.64 | JD-2-3 | 64.30 | 7.15 | 2.62 | 1.96 | 4.61 | 2.06 | 1.47 | JD-2-4 | 60.69 | 7.52 | 3.13 | 2.43 | 6.06 | 2.02 | 1.41 | JD-3-1 | 69.23 | 7.4 | 2.41 | 1.53 | 3.56 | 2.09 | 1.63 | JD-3-2 | 63.09 | 7.53 | 3.29 | 2.34 | 5.93 | 1.99 | 1.47 | JD-3-3 | 62.12 | 7.59 | 2.85 | 1.92 | 4.95 | 2.18 | 1.54 | JD-3-4 | 61.65 | 7.95 | 3.16 | 2.22 | 5.64 | 2.05 | 1.64 | JD-3-5 | 66.96 | 7.87 | 2.80 | 1.71 | 3.87 | 2.02 | 1.77 | 变化范围 | 60.21~71.83 | 6.9~7.95 | 2.06~4.09 | 1.36~2.59 | 2.8~6.58 | 1.86~2.18 | 1.41~1.77 | 平均值 | 65.37 | 7.45 | 2.80 | 1.89 | 4.51 | 2.02 | 1.56 | 标准差 | 3.85 | 0.34 | 0.56 | 0.42 | 1.29 | 0.09 | 0.10 | 变异系数 | 0.06 | 0.05 | 0.20 | 0.22 | 0.29 | 0.05 | 0.07 | 上部陆壳 | 66.00 | 15.20 | 5.00 | 2.20 | 4.20 | 3.90 | 3.40 | 巴丹吉林沙漠 | 80.27 | 7.78 | 1.93 | 1.19 | 2.06 | 1.90 | 2.00 | 腾格里沙漠 | 80.94 | 8.26 | 1.96 | 1.12 | 1.30 | 1.88 | 2.25 | 塔克拉玛干沙漠 | 62.05 | 10.18 | 2.36 | 1.58 | 7.30 | 2.33 | 2.40 |
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