敦煌雅丹地层易溶盐特征及其对沉积环境的指示意义
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梁晓磊, 程志花, 翟晓慧, 牛清河, 张益明, 李艳丽
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Soluble salt deposition of the Dunhuang yardang strata and its indication for sedimentary environment
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Xiaolei Liang, Zhihua Cheng, Xiaohui Zhai, Qinghe Niu, Yiming Zhang, Yanli Li
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表1 雅丹沉积物易溶盐主要离子含量
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Table 1 Eigenvalues of dominant ions' content of soluble salts in yardang sediments
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主要 离子 | 雅丹YA | | 雅丹YC |
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平均值 /(g·kg-1) | 最小值 /(g·kg-1) | 最大值 /(g·kg-1) | 变异 系数 | 平均值 /(g·kg-1) | 最小值 /(g·kg-1) | 最大值 /(g·kg-1) | 变异 系数 |
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K+ | 0.025 | 0.001 | 0.110 | 0.97 | | 0.041 | 0.001 | 0.111 | 0.76 | Na+ | 1.086 | 0.001 | 8.500 | 1.95 | | 1.469 | 0.026 | 5.825 | 1.10 | Ca2+ | 0.330 | 0.007 | 1.550 | 1.30 | | 1.055 | 0.000 | 3.877 | 1.15 | Mg2+ | 0.051 | 0.001 | 0.310 | 1.29 | | 1.617 | 0.001 | 10.755 | 1.86 | Cl- | 3.728 | 0.000 | 23.151 | 1.27 | | 5.112 | 0.382 | 23.666 | 1.11 | HCO | 0.306 | 0.114 | 0.961 | 0.64 | | 0.196 | 0.069 | 0.427 | 0.39 | CO | 0.043 | 0.000 | 0.189 | 1.23 | | 0.006 | 0.000 | 0.093 | 3.26 | SO | 2.671 | 0.394 | 13.027 | 0.90 | | 4.826 | 0.758 | 17.693 | 0.91 | 总含盐量 | 8.962 | 1.810 | 37.220 | 0.95 | | 14.322 | 1.950 | 48.140 | 0.86 |
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