中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The mineralogy, mineral chemistry, and origin of the Wuyang banded iron formations, North China Craton

文献类型:期刊论文

作者Li, Hong-Zhong1,3; Liang, Jin2,7; Yang, Fei1; Zhai, Ming-Guo3; Zhang, Lian-Chang3; Voudouris, Panagiotis Ch4; Yang, Zhi-Jun5; Zhou, Yong-Zhang5; He, Jun-Guo5; Spry, Paul G.6
刊名PRECAMBRIAN RESEARCH
出版日期2019-07-15
卷号328页码:111-127
ISSN号0301-9268
关键词BIF North China Craton Magnetite Precambrian Mineralogy Mineral geochemistry
DOI10.1016/j.precamres.2019.03.011
英文摘要Several banded iron formations (BIFs) occur in Precambrian strata of the North China Craton (NCC). Two subtypes of BIF occur in the Wuyang area, quartz-magnetite (QMB) and pyroxene-magnetite BIFs (PMB). However, the genesis of pyroxene and the how the BIFs formed are not well understood. Magnetite grains in QMB are relatively large with a straight boundary and sharp corners, and display a pronounced alignment, whereas magnetite in PMB is disseminated and has a smaller grain size. X-ray diffraction (XRD) analyses indicate that the crystal parameters of magnetite in QMB are: a = b = c = 8.396 angstrom and z = 8, whereas those of the magnetite in PMB are: a = b = c = 8.394 angstrom and z = 8. These parameters are consistent with magnetite forming in sedimentary iron formation. Based on scanning electron microscopy and energy dispersive spectroscopy (EDS) results, magnetite of both BIFs possesses high stabilities of geochemical property. Compared with magnetite in PMB, magnetite in QMB has higher concentrations of SiO2, Na2O, Al2O3, CaO, K2O, MgO, Sc, Co, Y, Nb, Ta and U. The enrichment of these elements is consistence with their derivation from seawater due to the strong adsorption capability of precursor iron hydroxide. A spider diagram of trace elements reveals that magnetite in QMB is enriched in Ta, whereas magnetite of PMB is depleted in Ce. Based on Raman and electron probe microanalysis of pyroxene in PMB, synchronous and compositional zoning are found in the degrees of crystallinity (FWHM values of Gaussian fitting for Raman shift next to 1014 cm(-1)) and the concentration of SiO2, Al2O3, MgO, MnO, CaO and FeO of pyroxene from core to rim. The two types of BIF formed in different sedimentary environments from different precursors. The precursor to the QMB BIF is almost pure chemical sediment, whereas a that for PMB contains a volcanic ash component. The QMB was likely deposited during a period of hydrothermal sedimentation in the Wuyang basin that was associated with Neoarchean magmatism activity, while the PMB was deposited during periods of volcanic paroxysm.
WOS关键词FE ISOTOPE COMPOSITIONS ; TYPOMORPHIC PECULIARITIES ; DEPOSITIONAL ENVIRONMENT ; PILBARA CRATON ; FORMATION AGE ; XIONGER GROUP ; SCHIST BELT ; GEOCHEMISTRY ; MAGNETITE ; CONSTRAINTS
资助项目Natural Science Foundation of China[41303025] ; Natural Science Foundation of China[41806076] ; Natural Science Foundation of China[41273040] ; Major State Basic Research Programme of the People's Republic of China[2012CB406601] ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources[GPMR200804] ; Project of Mineral Resources Investigation and Appraisal of China[12120113090400]
WOS研究方向Geology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000470941100008
资助机构Natural Science Foundation of China ; Natural Science Foundation of China ; Major State Basic Research Programme of the People's Republic of China ; Major State Basic Research Programme of the People's Republic of China ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Project of Mineral Resources Investigation and Appraisal of China ; Project of Mineral Resources Investigation and Appraisal of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Major State Basic Research Programme of the People's Republic of China ; Major State Basic Research Programme of the People's Republic of China ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Project of Mineral Resources Investigation and Appraisal of China ; Project of Mineral Resources Investigation and Appraisal of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Major State Basic Research Programme of the People's Republic of China ; Major State Basic Research Programme of the People's Republic of China ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Project of Mineral Resources Investigation and Appraisal of China ; Project of Mineral Resources Investigation and Appraisal of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Major State Basic Research Programme of the People's Republic of China ; Major State Basic Research Programme of the People's Republic of China ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Special Fund of the Ministry of Science and Technology of The State Key Laboratory of Geological Processes and Mineral Resources ; Project of Mineral Resources Investigation and Appraisal of China ; Project of Mineral Resources Investigation and Appraisal of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/92480]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Liang, Jin; Yang, Fei
作者单位1.Guangdong Univ Technol, Sch Civil & Transportat Engn, Guangzhou 510006, Guangdong, Peoples R China
2.Minist Nat Resources, Inst Oceanog 2, Hangzhou 310012, Zhejiang, Peoples R China
3.Chinese Acad Sci, Key Lab Mineral Resource, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Univ Athens, Dept Mineral Petrol, Athens 15784, Greece
5.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China
6.Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA 50011 USA
7.State Ocean Adm, Key Lab Submarine Geosci, Hangzhou 310012, Zhejiang, Peoples R China
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Li, Hong-Zhong,Liang, Jin,Yang, Fei,et al. The mineralogy, mineral chemistry, and origin of the Wuyang banded iron formations, North China Craton[J]. PRECAMBRIAN RESEARCH,2019,328:111-127.
APA Li, Hong-Zhong.,Liang, Jin.,Yang, Fei.,Zhai, Ming-Guo.,Zhang, Lian-Chang.,...&Spry, Paul G..(2019).The mineralogy, mineral chemistry, and origin of the Wuyang banded iron formations, North China Craton.PRECAMBRIAN RESEARCH,328,111-127.
MLA Li, Hong-Zhong,et al."The mineralogy, mineral chemistry, and origin of the Wuyang banded iron formations, North China Craton".PRECAMBRIAN RESEARCH 328(2019):111-127.

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来源:地质与地球物理研究所

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