中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Characterisics of rare earth elements, trace elements and geological significations of BIF from Sijiaying in eastern Hebei

文献类型:期刊论文

作者Li WenJun1; Jin XinDi1; Cui MinLi1,2; Wang ChangLe1
刊名ACTA PETROLOGICA SINICA
出版日期2012-11-01
卷号28期号:11页码:3670-3678
关键词Sijiaying area Banded iron formation Fe-rich bands Si-rich bands High-grade ore
ISSN号1000-0569
文献子类Article
英文摘要Banded iron formation (BIF), consisting of alternating layers of iron bands and silicon bands, are the most important iron resource in the world. This paper briefly presents two methods of magnetite sample preparation, and focuses on the trace elements and REEs for individual Fe-rich band and Si-rich band. The conventional dissolving method (HF + HNO3) obtains the same effect with the HBr + HF method for the magnetite samples. For the studied samples, crustal contamination can be ruled out on the basis of the generally low concentrations of Th, Zr, Sc. Both the Fe-rich bands and the Si-rich bands display depleted light REE relative to heavy REE, combined with positive La, Y anomalies, suggesting characteristics of sea water. Meanwhile, hydrothermal fluids are identified as major sources because of the positive Eu anomalies. The absence of negative Ce anomalies indicates relatively anoxic condition in the local water. The Fe-rich bands show total concentration of REE higher than the Si-rich bands, which may be related to the characteristics of silicon and iron sediment, the iron sediment is more likely to absorb REE. The high-grade ore has mixed source of hydrothermal and seawater, which has the same origin with the normal ore. Part of high-grade ore are strongly disturbed by the later hydrothermal fluid, even show the characteristics of hydrothermal fluids.
WOS关键词BANDED IRON-FORMATIONS ; GEOCHEMICAL CHARACTERISTICS ; SEAWATER ; FRACTIONATION ; ENVIRONMENTS ; AUSTRALIA ; OXIDATION ; MAGNETITE ; SEDIMENTS ; BEHAVIOR
WOS研究方向Geology
语种英语
WOS记录号WOS:000312572600017
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/84710]  
专题中国科学院地质与地球物理研究所
通讯作者Li WenJun
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.China Geol Survey, Res Dev Ctr, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714
Li WenJun,Jin XinDi,Cui MinLi,et al. Characterisics of rare earth elements, trace elements and geological significations of BIF from Sijiaying in eastern Hebei[J]. ACTA PETROLOGICA SINICA,2012,28(11):3670-3678.
APA Li WenJun,Jin XinDi,Cui MinLi,&Wang ChangLe.(2012).Characterisics of rare earth elements, trace elements and geological significations of BIF from Sijiaying in eastern Hebei.ACTA PETROLOGICA SINICA,28(11),3670-3678.
MLA Li WenJun,et al."Characterisics of rare earth elements, trace elements and geological significations of BIF from Sijiaying in eastern Hebei".ACTA PETROLOGICA SINICA 28.11(2012):3670-3678.

入库方式: OAI收割

来源:地质与地球物理研究所

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