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Behavior of rare earth elements in granitic profiles, eastern Tibetan Plateau, China
Lifeng Cui;  Zhiqi Zhao;  Congqiang Liu;  Sheng Xu;  Taoze Liu;  Chenglong Tu;  Hu Ding
2017
Source PublicationActa Geochimica
Volume36Issue:3Pages:552-555
Abstract

Rare earth elements (REEs) can record geologic and geochemical processes. We studied two granitic regolith profiles from different climatic zones in eastern Tibetan Plateau and found that (1) SigmaREEs ranged from 119.65 to 275.33 mg/kg in profile ND and 5.11-474.55 mg/kg in profile GTC,with average values of 205.79 and 161 mg/kg, respectively. SigmaREEs was higher in accumulation horizon and semi-regolith; (2) Influenced by climate, the fractionation of light and heavy REEs (LREEs and HREEs) varied during weathering. The ratio of LREEs/HREEs in pedosphere was higher than semi-regolith in tropical profile; (3) A negative Eu anomaly in both profiles was the result of bedrock weathering. A positive Ce anomaly was observed in all layers of profile ND, and only in the upper 100 cm of profile GTC. This indicates that redox conditions along the regolith profile varied considerably with climate. (4) Normalized by chondrite, LREEs accumulated much more than HREEs; REE distribution curves were right-leaning with a V-type Eu anomaly in both profiles.

KeywordChemical Weathering Eu Anomaly Critical Zone Soil Weathering
Indexed ByEI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/7731
Collection环境地球化学国家重点实验室
Affiliation1.Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Environmental Geochemistry, Guiyang, Guizhou 550081, China
2.Scottish Universities of Environmental Research Centre, Glasgow, G75 0QF, England
First Author Affilication中国科学院地球化学研究所
Corresponding Author Affilication中国科学院地球化学研究所
Recommended Citation
GB/T 7714
Lifeng Cui;Zhiqi Zhao;Congqiang Liu;Sheng Xu;Taoze Liu;Chenglong Tu;Hu Ding. Behavior of rare earth elements in granitic profiles, eastern Tibetan Plateau, China[J]. Acta Geochimica,2017,36(3):552-555.
APA Lifeng Cui;Zhiqi Zhao;Congqiang Liu;Sheng Xu;Taoze Liu;Chenglong Tu;Hu Ding.(2017).Behavior of rare earth elements in granitic profiles, eastern Tibetan Plateau, China.Acta Geochimica,36(3),552-555.
MLA Lifeng Cui;Zhiqi Zhao;Congqiang Liu;Sheng Xu;Taoze Liu;Chenglong Tu;Hu Ding."Behavior of rare earth elements in granitic profiles, eastern Tibetan Plateau, China".Acta Geochimica 36.3(2017):552-555.
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