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

doi:10.1007/s12583-022-1622-4

IOCAS-IR

	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
	Tamehe, Landry Soh 1; Li, Huan 1; Ganno, Sylvestre 2; Chen, Zuxing 3; Lemdjou, Yanick Brice 1; Elatikpo, Safiyanu Muhammad 4
	2024-02-01
发表期刊	JOURNAL OF EARTH SCIENCE
ISSN	1674-487X
卷号	35 期号:1 页码:16-28
通讯作者	Li, Huan(lihuan@csu.edu.cn)
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.
关键词	banded iron formations iron ore geochemistry Congo Craton trace element composition LA-ICP-MS
DOI	10.1007/s12583-022-1622-4
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001162401600018
出版者	CHINA UNIV GEOSCIENCES, WUHAN
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184590
专题	中国科学院海洋研究所
通讯作者	Li, Huan
作者单位	1.Cent South Univ, Sch Geosci & Infophys, Changsha 410083, Peoples R China 2.Univ Yaounde I, Dept Earth Sci, Yaounde 3412, Cameroon 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 4.Ahmadu Bello Univ Zaria, Dept Geol, Zaria 810107, Nigeria
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.