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Cd isotope fractionation during simulated and natural weathering

文献类型:期刊论文

作者Zhang, Yuxu1; Wen, Hanjie1; Zhu, Chuanwei1; Fan, Haifeng1; Luo, Chongguang1; Liu, Jie1,2; Cloquet, Christophe3
刊名Environmental pollution
出版日期2016-09-01
卷号216页码:9-17
关键词Cd isotope fractionation Leaching experiment Weathering processes Pollution sources
ISSN号0269-7491
DOI10.1016/j.envpol.2016.04.060
通讯作者Wen, hanjie(wenhanjie@vip.gyig.ac.cn)
英文摘要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. (c) 2016 elsevier ltd. all rights reserved.
WOS关键词RIVER SEDIMENTS ; SOUTHERN-OCEAN ; LEAD ISOTOPES ; CADMIUM ; ZINC ; POLLUTION ; SIGNATURE ; CHINA ; SOILS
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
语种英语
WOS记录号WOS:000383930500002
出版者ELSEVIER SCI LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2375812
专题中国科学院大学
通讯作者Wen, Hanjie
作者单位1.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guanshui Rd 46, Guiyang 550002, Guizhou Provinc, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.CNRS, UMR 7358, Ctr Rech Petrog & Geochim, 15,Rue Notre Dame Pauvres,BP 20, F-54501 Vandoeuvre Les Nancy, France
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GB/T 7714
Zhang, Yuxu,Wen, Hanjie,Zhu, Chuanwei,et al. Cd isotope fractionation during simulated and natural weathering[J]. Environmental pollution,2016,216:9-17.
APA Zhang, Yuxu.,Wen, Hanjie.,Zhu, Chuanwei.,Fan, Haifeng.,Luo, Chongguang.,...&Cloquet, Christophe.(2016).Cd isotope fractionation during simulated and natural weathering.Environmental pollution,216,9-17.
MLA Zhang, Yuxu,et al."Cd isotope fractionation during simulated and natural weathering".Environmental pollution 216(2016):9-17.

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来源:中国科学院大学

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