题名 | Genesis of the Meishan iron oxide–apatite deposit in the Ningwu Basin, eastern China: Constraints from apatite chemistry |
作者 | |
发表日期 | 2019
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DOI | |
发表期刊 | |
ISSN | 0072-1050
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EISSN | 1099-1034
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卷号 | 55期号:2页码:1450-1467 |
摘要 | The Meishan iron oxide–apatite deposit is located in the Ningwu volcanic basin in eastern China. The deposit comprises massive and brecciated ores in the main orebody, located at the contact between a gabbro–diorite porphyry and biotite–pyroxene andesites, and sub-economic stockwork and disseminated ores. Among the four stages of alteration and mineralization, apatite coexists with magnetite, andradite, and quartz in massive magnetite ore and occurs in disseminated magnetite ore, coexisting with magnetite, siderite (after diopside), and quartz for Stage 2 iron mineralization. Apatite is also present in the altered gabbro–diorite porphyry. The apatites from the massive and disseminated magnetite–apatite ores are fluor- and hydroxyl- variety. Those from the altered gabbro–diorite porphyry show extensive solid solution between the hydroxyl-apatite, fluor-apatite, and chlor-apatite end members. The apatites at Meishan record oxidized states during formation of the mineral deposit. The SO contents of apatite in the Meishan deposit mostly vary from 0.4 to 1.2 wt%, with the highest value of 4.97 wt%. MnO contents in apatites from our study are less than 0.17 wt%, and most values are below detection limit, indicating that the apatite formed in a high ƒ magmatic–hydrothermal fluid. The strong Eu depletion in apatites at Meishan resulted from the fractionation of plagioclase. The gabbro–diorite porphyry, magnetite, and apatite show similar LREE-enriched patterns with significant negative Eu anomalies for apatite and magnetite, and no Eu anomaly for the gabbro–diorite porphyry. The gabbro–diorite porphyry and Stage 2 apatite associated with iron mineralization have also similar primitive mantle-normalized trace element patterns, suggesting that the mineralization was related to gabbro–diorite porphyry. The REE pattern with significant negative Eu anomalies in apatite from the Meishan deposit is comparable with that of other Kiruna-type deposits elsewhere in the world. |
关键词 | |
相关链接 | [Scopus记录] |
收录类别 | |
语种 | 英语
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学校署名 | 其他
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资助项目 | Project of the State Key Fundamental Programme, Ministry of Science and Technology of China[2012CB416803]
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WOS研究方向 | Geology
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WOS类目 | Geosciences, Multidisciplinary
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WOS记录号 | WOS:000512877800024
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出版者 | |
ESI学科分类 | GEOSCIENCES
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Scopus记录号 | 2-s2.0-85063375667
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来源库 | Scopus
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引用统计 |
被引频次[WOS]:2
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成果类型 | 期刊论文 |
条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/44137 |
专题 | 理学院_地球与空间科学系 |
作者单位 | 1.MNR Key Laboratory of Metallogeny and Mineral AssessmentInstitute of Mineral ResourcesChinese Academy of Geological Sciences,Beijing,China 2.School of Earth Science and ResourcesChang'an University,Xi'an,China 3.Sino-mine Resource Exploration Co.Ltd.,Beijing,China 4.Wanping regional Office of Beijing Fengtai District People's government,Beijing,China 5.Department of Earth and Space SciencesSouthern University of Science and Technology,Shenzhen,China |
推荐引用方式 GB/T 7714 |
Yu,Jin Jie,Chen,Bao Yun,Che,Lin Rui,等. Genesis of the Meishan iron oxide–apatite deposit in the Ningwu Basin, eastern China: Constraints from apatite chemistry[J]. GEOLOGICAL JOURNAL,2019,55(2):1450-1467.
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APA |
Yu,Jin Jie,Chen,Bao Yun,Che,Lin Rui,Wang,Tie Zhu,&Liu,Shuai Jie.(2019).Genesis of the Meishan iron oxide–apatite deposit in the Ningwu Basin, eastern China: Constraints from apatite chemistry.GEOLOGICAL JOURNAL,55(2),1450-1467.
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MLA |
Yu,Jin Jie,et al."Genesis of the Meishan iron oxide–apatite deposit in the Ningwu Basin, eastern China: Constraints from apatite chemistry".GEOLOGICAL JOURNAL 55.2(2019):1450-1467.
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条目包含的文件 | 条目无相关文件。 |
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