Fractionation characteristics of rare earth elements(REEs) linked with secondary Fe, Mn, and Al minerals in soils

被引：0
作者：
Chunying Chang [1 ,2 ]
Fangbai Li [1 ]
Chengshuai Liu [1 ,3 ]
Jianfeng Gao [3 ]
Hui Tong [3 ]
Manjia Chen [1 ]
机构：
[1] Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences
[2] State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry, Chinese Academy of Sciences
[3] Guangdong Key Laboratory of Contaminated Sited Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science
来源：
Acta Geochimica | 2016年 / 04期
基金：
中国国家自然科学基金;
关键词：
Rare earth elements; Fractionation; Secondary minerals; Geochemical process; Europium anomaly; Cerium anomaly;
D O I：
暂无
中图分类号：
S153 [土壤化学、土壤物理化学]; P595 [元素地球化学];
学科分类号：
070902 ; 0903 ; 090301 ;
摘要：
Soil secondary minerals are important scavengers of rare earth elements(REEs) in soils and thus affect geochemical behavior and occurrence of REEs. The fractionation of REEs is a common geochemical phenomenon in soils but has received little attention, especially fractionation induced by secondary minerals. In this study, REEs(La to Lu and Y) associated with soil-abundant secondary minerals Fe-, Al-, and Mn-oxides in 196 soil samples were investigated to explore the fractionation and anomalies of REEs related to the minerals. The results show right-inclined chondrite-normalized REE patterns for La–Lu in soils subjected to total soil digestion and partial soil extraction. Light REEs(LREEs) enrichment features were negatively correlated with a Eu anomaly and positively correlated with a Ce anomaly. The fractionation between LREEs and heavy REEs(HREEs) was attributed to the high adsorption affinity of LREEs to secondary minerals and the preferred activation/leaching of HREEs.The substantial fractions of REEs in soils extracted byoxalate and Dithionite-Citrate-Bicarbonate buffer solutions were labile(10 %–30 %), which were similar to the mass fraction of Fe(10 %–20 %). Furthermore, Eu was found to be more mobile than the other REEs in the soils, whereas Ce was less mobile. These results add to our understanding of the distribution and geochemical behavior of REEs in soils, and also help to deduce the conditions of soil formation from REE fractionation.
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收藏
页码：329 / 339
页数：11
相关论文
共 45 条
  • [1] Compounding Pattern of REE， Clay and Humic Acid in the Weathering Crust of Granites[J]. 陈炳辉,陈志澄,梁群优,符群策,俞受鋆,张丽洁.JOURNAL OF RARE EARTHS. 1996(01)
  • [2] Forms of Rare Earth Elements in Soils: Ⅱ. Differentiation of Rare Earth Elements[J]. ZHU JIAN-GUO and XING GUANG-XILMCP, Institute of Soil Science, Academia Sinica, P. O. Box 821, Nanjing 210008 (China).Pedosphere. 1992(03)
  • [3] Use of Sr isotopes as a tool to decipher the soil weathering processes in a tropical river catchment, southwestern India[J] . G.P. Gurumurthy,K. Balakrishna,M. Tripti,Jean Riotte,Stéphane Audry,Jean-Jacques Braun,H.N. Udaya Shankar.Applied Geochemistry . 2015
  • [4] Elemental and Sr–Nd isotopic compositional disparity of riverine sediments around the Yellow Sea: Constraints from grain-size and chemical partitioning[J] . Dhongil Lim,Hoisoo Jung,Zhaokai Xu,Kapsik Jeong,Tiegang Li.Applied Geochemistry . 2015
  • [5] Reflections of the geological characteristics of Cyprus in soil rare earth element patterns[J] . Limin Ren,David R. Cohen,Neil F. Rutherford,Andreas M. Zissimos,Eleni G. Morisseau.Applied Geochemistry . 2015
  • [6] Quantifying chemical weathering intensity and trace element release from two contrasting basalt profiles, Deccan Traps, India[J] . M.G. Babechuk,M. Widdowson,B.S. Kamber.Chemical Geology . 2014
  • [7] Rare earth element mineralogy and geochemistry in a laterite profile from Madagascar[J] . Alfons Berger,Emilie Janots,Edwin Gnos,Robert Frei,Felix Bernier.Applied Geochemistry . 2013
  • [8] Effects of Fe competition on REE binding to humic acid: Origin of REE pattern variability in organic waters[J] . Rémi Marsac,Mélanie Davranche,Gérard Gruau,Aline Dia,Mathieu Pédrot,Martine Le Coz-Bouhnik,Nicolas Briant.Chemical Geology . 2013
  • [9] Mobility and fractionation of REEs during deep weathering of geochemically contrasting granites in a tropical setting, Malaysia[J] . Zainuddin M. Yusoff,Bryne T. Ngwenya,Ian Parsons.Chemical Geology . 2013
  • [10] Elemental and strontium isotopic geochemistry of the soil profiles developed on limestone and sandstone in karstic terrain on Yunnan-Guizhou Plateau, China: Implications for chemical weathering and parent materials[J] . Wen-Jing Liu,Cong-Qiang Liu,Zhi-Qi Zhao,Zhi-Fang Xu,Chong-Shan Liang,Long-bo Li,Jia-Yi Feng.Journal of Asian Earth Sciences . 2013
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