Study on Microarea Characteristics of Calcite in Archaean BIF from Wuyang Area in South Margin of North China Craton and Its Geological Significances

doi:10.3964/j.issn.1000-0593(2013)11-3061-05

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	Study on Microarea Characteristics of Calcite in Archaean BIF from Wuyang Area in South Margin of North China Craton and Its Geological Significances
	Li Hong-zhong 1; Zhai Ming-guo 1; Zhang Lian-chang 1; Yang Zhi-jun 2,3; Zhou Yong-zhang 2,3; Wang Chang-le 1; Liang Jin 2,3; Luo An 2
	2013-11-01
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN	1000-0593
卷号	33 期号:11 页码:3067-3071
文章类型	Article
摘要	The results of Raman, SEM, CL and EDS analysis show that the quartz-type BIF (banded iron formation) in Tieshanmiao formation, from Wuyang area of south North China Craton mainly contains quartz, magnetite and a small quantity of calcite. In comparison, magnetites represent the highest automorphic degree, while calcites contribute to the lowest automorphic degree. In addition, the automorphic degree of the quartz lies between magnetite and calcite. In the results of Raman analysis, the crystallinity and order degree are quite diverse in the vertical direction of the calcite band-like, and this is different from the calcite vein precipitating from the upper hydrothermal fluid. There are obvious plastic flow happening to calcite particles. During the process of plastic flow, the calcites are finally filled in the space between quartz and magnetite. This is the reason why the cross sectional shape and distributional characteristics of calcite aggregate are controlled by the particles of quartz and magnetite, which is also evidenced by the calcite filled into the slight interspace between two particles of quartz. In the Raman analysis, there are apparent differences of microarea component in calcite band-like, and this denotes that it is produced by the plastic flow and concourse process. What's more, the calcite acts as the migration intermedium of tiny magnetite during their concourse and crystallization processes, which is witnessed by the concentrated particles of magnetite in small size in local parts of the calcites. With the help of calcite, the small magnetite particles join together to crystallize with bigger size or form aggregate of minerals.
关键词	Banded iron formation Calcite micro-area characteristics Plastic flow Magnetite
WOS标题词	Science & Technology ; Technology
DOI	10.3964/j.issn.1000-0593(2013)11-3061-05
关键词[WOS]	BANDED-IRON FORMATIONS
收录类别	SCI
语种	英语
WOS研究方向	Spectroscopy
WOS类目	Spectroscopy
WOS记录号	WOS:000326769300039
出版者	OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
引用统计
文献类型	期刊论文
条目标识符	http://ir.iggcas.ac.cn/handle/132A11/88039
专题	中国科学院地质与地球物理研究所
通讯作者	Yang Zhi-jun
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resource, Beijing 100029, Peoples R China 2.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China 3.Guangdong Prov Key Lab Geol Proc & Mineral Resour, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Li Hong-zhong,Zhai Ming-guo,Zhang Lian-chang,et al. Study on Microarea Characteristics of Calcite in Archaean BIF from Wuyang Area in South Margin of North China Craton and Its Geological Significances[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2013,33(11):3067-3071.
APA	Li Hong-zhong.,Zhai Ming-guo.,Zhang Lian-chang.,Yang Zhi-jun.,Zhou Yong-zhang.,...&Luo An.(2013).Study on Microarea Characteristics of Calcite in Archaean BIF from Wuyang Area in South Margin of North China Craton and Its Geological Significances.SPECTROSCOPY AND SPECTRAL ANALYSIS,33(11),3067-3071.
MLA	Li Hong-zhong,et al."Study on Microarea Characteristics of Calcite in Archaean BIF from Wuyang Area in South Margin of North China Craton and Its Geological Significances".SPECTROSCOPY AND SPECTRAL ANALYSIS 33.11(2013):3067-3071.