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Distribution of rare earth elements of granitic regolith under the influence of climate
Hairuo Mao;  Congqiang Liu;  Zhiqi Zhao;  Junxiong Yang
2017
发表期刊Acta Geochimica
卷号36期号:3页码:440-445
摘要

The distribution and anomalies of rare earth elements (REEs) of granitic regolith were studied in Inner Mongolia and Hainan Island, China. One profile showed slight REE enrichment of an upper layer and no obvious light REE/heavy REE (LREE/HREE) fractionation (La_N/Yb_N of 0.9). The second profile was significantly enriched in REEs and enriched in LREEs in the upper portion (La_N/Yb_N > 1.8). Eu, Ce, and Gd anomalies of the two profiles are different. Slightly negative Eu, Ce, and Gd anomalies in NMG-3-1 indicate slow dissolution of primary minerals and little secondary products; in contrast, a positive Eu anomaly in HN-2 suggests the vegetation cycle may contribute to soil. The Ce anomaly of HN-2 reflects oxidation of Ce and coprecipitation by Fe- and Mn-oxides and organic matter. Correlation between Ce and Gd anomalies in HN-2 suggests Ce and Gd are both influenced by redox-reduction.

关键词Rare Earth Elements Granitic Regolith Weathering Ce Anomaly Eu Anomaly
收录类别EI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/7733
专题环境地球化学国家重点实验室
作者单位Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Environmental Geochemistry, Guiyang, Guizhou 550002, China
第一作者单位中国科学院地球化学研究所
通讯作者单位中国科学院地球化学研究所
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Hairuo Mao;Congqiang Liu;Zhiqi Zhao;Junxiong Yang. Distribution of rare earth elements of granitic regolith under the influence of climate[J]. Acta Geochimica,2017,36(3):440-445.
APA Hairuo Mao;Congqiang Liu;Zhiqi Zhao;Junxiong Yang.(2017).Distribution of rare earth elements of granitic regolith under the influence of climate.Acta Geochimica,36(3),440-445.
MLA Hairuo Mao;Congqiang Liu;Zhiqi Zhao;Junxiong Yang."Distribution of rare earth elements of granitic regolith under the influence of climate".Acta Geochimica 36.3(2017):440-445.
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