Distribution and provenance implication of rare earth elements in surface sediments from Jiulong River,Southeast China
The concentrations of rare earth elements(REEs)in the surface sediments from Jiulong River were determined by inductively coupled plasma mass spectrometry(ICP-MS).The REEs in the surface sediments at different sites were similar in geochemical characteristics,with a right-inclined distribution pattern and higher enrichment of light REEs(LREEs)compared to heavy REEs(HREEs),an obvious negative Eu anomaly but no Ce anomaly.The mean ?REEs in the surface sediments of Jiulong River was 254.25 mg?kg-1,which is higher than that in Fujian soils while lower than that of deep-sea sediments.The high concentrations of ?REE,high LREE/HREE ratios and negative Eu anomalies indicated that the surface sediments were mainly derived from the terrigenous sources.The chondrite-normalized and NASC-normalized REEs patterns in the sediments indicated that the REEs in different areas of Jiulong River were of similar origin.The sediments were mainly derived from the local soils but not exclude anthropogenic effects.The enrichment factor,plots of La-Th-Sc and La/Yb-ΣREE suggested that the surface sediments were mainly from granite with minor contributions from basic rocks.
Rare earth elements surface sediment provenance implication Jiulong River
Ruilian Yu Chengqi Lin Gongren Hu
College of Chemical Engineering,Huaqiao University,Xiamen 361021,China
国际会议
The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)
贵阳
英文
1-7
2017-06-11（万方平台首次上网日期，不代表论文的发表时间）