基于沉积物理化性质的雅鲁藏布江中游粉尘物源研究
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张焱, 马鹏飞, 曾林, 梁爱民, 张正偲
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Study on silt and clay provenance in the Yarlung Zangbo River middle reaches using sediment physicochemical characteristics
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Yan Zhang, Pengfei Ma, Lin Zeng, Aimin Liang, Zhengcai Zhang
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表3 5种类型地表微量元素平均含量(μg·g-1)
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Table 3 The mean compositions of trace elements for five landscapes
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元素 | 河岸(N=6) | 河漫滩(N=12) | 林地(N=9) | 河漫滩沙丘(N=5) | 沙丘(N=7) |
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Ti | 4 545.5±557.4 | 4 812.2±562.4 | 4 320.0±418.4 | 5 546.5±792.4 | 4 226.7±312.6 | Rb | 116.4±17.0 | 120.4±15.6 | 118.2±4.7 | 120.5±14.8 | 121.2±11.0 | Sr | 204.4±21.4 | 196.3±13.0 | 191.6±5.5 | 196.2±6.7 | 202.2±19.6 | Y | 37.9±7. | 36.7±9.3 | 40.1±8.6 | 58.4±26.4 | 35.0±7.0 | Zr | 668.6±295.8 | 632.3±446.7 | 816.9±354.5 | 1 706.3± 1290.3 | 575.6±326.7 | Nb | 15.8±0.6 | 16.5±1.6 | 15.4±1.4 | 18.3±2.3 | 15.0±1.4 | Ba | 383.3±35.4 | 407.9±51.5 | 383.0±15.6 | 400.8±51.1 | 390.2±21.0 | La | 44.2±10.2 | 42.2±11.0 | 46.4±7.9 | 58.6±24.4 | 38.1±7.7 | Ce | 85.7±17.4 | 84.7±25.7 | 93.1±16.8 | 117.9±54.4 | 75.6±16.6 |
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