阿拉善高原东南部干涸湖盆沉积物粒度特征
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于海云, 张正偲, 王志军
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Sediment grain size characteristics at extinct lakes in the south Alxa, China
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Haiyun Yu, Zhengcai Zhang, Zhijun Wang
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表2 不同粒径沙粒含量(%)
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Table 2 Sand grain contents for all 14 samples (%)
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区域 | 样品 编号 | 粒级范围/μm |
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<2 | 2—63 | 63—125 | 125—250 | 250—500 | 500—1000 | >1000 |
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湖相表层 | C0 | 0.41 | 9.03 | 38.34 | 35.44 | 10.21 | 5.73 | 0.85 | S1 | 2.32 | 58.28 | 22.86 | 10.46 | 5.44 | 0.63 | 0.00 | S3 | 1.66 | 30.17 | 33.68 | 21.28 | 8.44 | 4.78 | 0.00 | S5 | 2.80 | 56.69 | 21.11 | 8.66 | 5.13 | 5.36 | 0.24 | S6 | 4.95 | 55.69 | 16.51 | 10.47 | 7.73 | 4.57 | 0.07 | S7 | 5.60 | 60.00 | 12.15 | 6.37 | 7.61 | 7.67 | 0.59 | S10 | 0.49 | 9.36 | 29.57 | 32.61 | 13.83 | 10.77 | 3.36 | S12 | 0.00 | 5.72 | 28.58 | 37.37 | 21.56 | 6.55 | 0.21 | C1 | 2.31 | 41.74 | 19.45 | 21.04 | 11.83 | 3.64 | 0.00 | 平均值 | 2.28±1.96 | 36.30±23.20 | 24.69±8.47 | 20.41±12.23 | 10.20±5.11 | 5.52±2.79 | 0.59±1.08 | 沙丘表层 | S2 | 2.24 | 45.39 | 22.71 | 17.33 | 9.51 | 2.82 | 0.00 | S4 | 0.93 | 25.36 | 32.74 | 24.91 | 11.64 | 4.36 | 0.07 | S8 | 4.35 | 49.88 | 19.69 | 10.59 | 8.14 | 6.65 | 0.70 | S9 | 0.00 | 2.21 | 16.90 | 28.49 | 32.44 | 19.44 | 0.53 | S11 | 1.57 | 21.02 | 25.58 | 27.66 | 16.58 | 7.39 | 0.20 | S13 | 0.60 | 11.21 | 32.42 | 36.05 | 15.29 | 4.31 | 0.13 | S14 | 0.00 | 0.54 | 19.99 | 52.08 | 26.33 | 1.06 | 0.00 | 平均值 | 1.38±1.54 | 22.23±19.60 | 24.29±6.27 | 28.16±13.36 | 17.13±9.05 | 6.68±6.06 | 0.23±0.27 |
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