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Insight into the Origin of Iron Ore Based on Elemental Contents of Magnetite and Whole-Rock Geochemistry: A Case of the Bipindi Banded Iron Formations, Nyong Complex, SW Cameroon

文献类型:期刊论文

作者Tamehe, Landry Soh3; Li, Huan3; Ganno, Sylvestre4; Chen, Zuxing2; Lemdjou, Yanick Brice3; Elatikpo, Safiyanu Muhammad1
刊名JOURNAL OF EARTH SCIENCE
出版日期2024-02-01
卷号35期号:1页码:16-28
ISSN号1674-487X
关键词banded iron formations iron ore geochemistry Congo Craton trace element composition LA-ICP-MS
DOI10.1007/s12583-022-1622-4
通讯作者Li, Huan(lihuan@csu.edu.cn)
英文摘要The Bipindi iron ore district is located in the central section of the Nyong Complex at the northwestern margin of the Congo Craton in Southwest Cameroon. This iron district contains numerous iron mineralization hosted by the Mewongo, Bibole, Kouambo, and Zambi banded iron formations (BIFs). These BIFs contain magnetite as the main iron ore mineral associated with pyrite, and gangue minerals are quartz with minor chlorite and amphibole. The origin of iron ore from these BIFs was investigated using a combination of in-situ magnetite and whole-rock chemistry. The studied BIF ore samples have a narrow range of TFe between 30.90 wt.% and 43.20 wt.%, indicating a low-grade ore. The geochemical signatures of magnetite such as low contents of base metals (e. g., Cu, Co, V, and Zn) and low Co/Zn ratios < 0.85 indicate a hydrothermal origin. Combined with the geochemical features of these BIFs, e. g., high Fe/Ti and Fe/Al ratios (mean > 600 and > 75, respectively), we suggest that magnetite was derived from a mixture of seawater and similar to 0.1% low-temperature hydrothermal fluids in an oxidizing environment. Collectively, low-temperature hydrothermal and later metamorphic fluids were necessary for the transformation of the protolith Nyong Complex BIFs to iron ore.
WOS研究方向Geology
语种英语
出版者CHINA UNIV GEOSCIENCES, WUHAN
WOS记录号WOS:001162401600018
源URL[http://ir.qdio.ac.cn/handle/337002/184589]  
专题中国科学院海洋研究所
通讯作者Li, Huan
作者单位1.Ahmadu Bello Univ Zaria, Dept Geol, Zaria 810107, Nigeria
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Cent South Univ, Sch Geosci & Infophys, Changsha 410083, Peoples R China
4.Univ Yaounde I, Dept Earth Sci, Yaounde 3412, Cameroon
推荐引用方式
GB/T 7714
Tamehe, Landry Soh,Li, Huan,Ganno, Sylvestre,et al. Insight into the Origin of Iron Ore Based on Elemental Contents of Magnetite and Whole-Rock Geochemistry: A Case of the Bipindi Banded Iron Formations, Nyong Complex, SW Cameroon[J]. JOURNAL OF EARTH SCIENCE,2024,35(1):16-28.
APA Tamehe, Landry Soh,Li, Huan,Ganno, Sylvestre,Chen, Zuxing,Lemdjou, Yanick Brice,&Elatikpo, Safiyanu Muhammad.(2024).Insight into the Origin of Iron Ore Based on Elemental Contents of Magnetite and Whole-Rock Geochemistry: A Case of the Bipindi Banded Iron Formations, Nyong Complex, SW Cameroon.JOURNAL OF EARTH SCIENCE,35(1),16-28.
MLA Tamehe, Landry Soh,et al."Insight into the Origin of Iron Ore Based on Elemental Contents of Magnetite and Whole-Rock Geochemistry: A Case of the Bipindi Banded Iron Formations, Nyong Complex, SW Cameroon".JOURNAL OF EARTH SCIENCE 35.1(2024):16-28.

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来源:海洋研究所

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