| Cd isotope fractionation during simulated and natural weathering |
| Yuxu Zhang; Hanjie Wen; Chuanwei Zhu; Haifeng Fan; Chongguang Luo; Jie Liu; Christophe Cloquet
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| 2016
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发表期刊 | Environmental Pollution
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卷号 | 216期号:1页码:9-17 |
摘要 | In practice, stable Cd isotope ratios are being applied to trace pollution sources in the natural environment. However, Cd isotope fractionation during weathering processes is not yet fully understood. We investigated Cd isotope fractionation of Pb-Zn ore in leaching experiments and in the environment under natural weathering processes. Our leaching experiments demonstrated that the leachate was enriched with heavy Cd isotopes, relative to initial and residual samples (Delta(114/110) CD (leachate) (-) (initial) state = 0.40-0.50 parts per thousand, Delta(114/110) CDleachate (- residual state) = 0.36-0.53%). For natural samples, delta Cd-114/110 values of stream sediments were higher than those of the corresponding soil samples collected from the river-bank, Delta Cd-114/110(stream) (sediment - soil) can be up to 0.50 parts per thousand. This observation is consistent with our leaching experiments, which indicate significant Cd isotope fractionation during natural weathering processes. Therefore, natural contributions should be considered when using Cd isotopes to trace anthropogenic pollution in water and sediment systems. |
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学科领域 | 矿床地球化学
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收录类别 | SCI
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语种 | 英语
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文献类型 | 期刊论文
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条目标识符 | http://ir.gyig.ac.cn/handle/352002/6541
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专题 | 矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文 矿床地球化学国家重点实验室
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推荐引用方式 GB/T 7714 |
Yuxu Zhang,Hanjie Wen,Chuanwei Zhu,et al. Cd isotope fractionation during simulated and natural weathering[J]. Environmental Pollution,2016,216(1):9-17.
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APA |
Yuxu Zhang.,Hanjie Wen.,Chuanwei Zhu.,Haifeng Fan.,Chongguang Luo.,...&Christophe Cloquet.(2016).Cd isotope fractionation during simulated and natural weathering.Environmental Pollution,216(1),9-17.
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MLA |
Yuxu Zhang,et al."Cd isotope fractionation during simulated and natural weathering".Environmental Pollution 216.1(2016):9-17.
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文件名:
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Cd isotope fractionation during simulated and natural weathering.pdf
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格式:
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Adobe PDF
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