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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
A genetic link between iron oxide-apatite and iron skarn mineralization in the Jinniu volcanic basin, Daye district, eastern China: Evidence from magnetite geochemistry and multi-mineral U-Pb geochronology

文献类型：期刊论文

作者Hu, Hao4; Li, Jian-Wei4,5; Harlov, Daniel E.3,5,6; Lentz, David R.1; Mcfarlane, Chris R. M.1; Yang, Yue-Heng2
刊名GEOLOGICAL SOCIETY OF AMERICA BULLETIN
出版日期2020-05-01
卷号132期号:5-6页码:899-917
ISSN号0016-7606
DOI10.1130/B35180.1
英文摘要Various styles of ore deposits may form from a single magmatic-hydrothermal system. Identification of a possible genetic link between different ore types in a region is not only of critical importance for a better understanding of the magmatic-hydrothermal processes, but can also help in successful mineral exploration. Both iron oxide-apatite (IOA) and iron skarn deposits are closely associated with intrusive rocks of intermediate to felsic in composition, but whether these two ore types can form from the same magmatic intrusion remains poorly understood. In this study, we present a comparative study between a newly identified subsurface IOA ore body located at the apex of a diorite porphyry and the iron skarn ore bodies located immediately above it in the Jinniu volcanic basin of the Daye district, Middle-Lower Yangtze River metal-logenetic belt (MLYRMB), eastern China in order to highlight a genetic link between these two styles of mineralization. The IOA ores are dominated by Ti-rich magnetite with variable amounts of fluorapatite, diopside, and actinolite. This mineralogical assemblage is distinctly different from the iron skarn ores, which consist mainly of Ti-depleted magnetite and subordinate pre-ore garnet and diopside, and post-ore quartz, chlorite, calcite, and pyrite. In addition, magnetite from the IOA ores is characterized by well-developed ilmenite lamellae and has high concentrations of Ni, V, Co, and Ga, consistent with high temperature crystallization, whereas magnetite grains from the iron skarn ores usually exhibit oscillatory growth zones and contain much lower Ni, V, Co, and Ga, indicating their formation under relatively low temperatures. Titanite and fluorapatite from the IOA ores have U-Pb ages of 132.5 +/- 2.4 Ma to 128.4 +/- 3.0 Ma, which match a titanite U-Pb age for the associated iron skarn ores (1323 +/- 2.0 Ma), and are consistent with zircon U-Pb ages for the ore-hosting diorite porphyry (130.4 +/- 0.7 Ma to 130.3 +/- 0.5 Ma). This age consistency supports a possible genetic link among the diorite porphyry, IOA ores, and iron skarn ores. We propose that the IOA and skarn ores are the products of two consecutive mineralization stages of the same magmatic-hydrothermal system, involving a high-temperature, hypersaline fluid coexisting with the diorite porphyry magma during emplacement and a subsequent low temperature, diluted hydrothermal fluid. Other IOA and iron skarn deposits of similar ages (130 Ma) are found in a series of volcanic basins in the MLYRMB, which forms one of the world's largest IOA metallogenic belts. The close association of the two ore styles identified at Daye provides a useful exploration guide for IOA and iron skarn deposits both on a local and regional scale.
WOS关键词LOWER YANGTZE-RIVER ; BEAR MAGMATIC ZONE ; LA-ICP-MS ; CU-FE-AU ; NINGWU BASIN ; EL-LACO ; SOUTHEAST MISSOURI ; METALLOGENIC BELT ; TRACE-ELEMENTS ; COPPER-GOLD
资助项目National Natural Science Foundation of China[41502072] ; National Natural Science Foundation of China[41325007] ; National Natural Science Foundation of China[41872090] ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan[CUGCJ1711] ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan[G1323521667] ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences[KLMM20170102] ; Natural Science Foundation of Hubei Province[2017CFB775] ; Special Fund from Geological Bureau of Hubei Province[KJ20179] ; Special Fund from Geological Bureau of Hubei Province[KJ2018-3] ; NSERC
WOS研究方向Geology
语种英语
WOS记录号WOS:000530917400001
出版者GEOLOGICAL SOC AMER, INC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Natural Science Foundation of Hubei Province ; Natural Science Foundation of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; NSERC ; NSERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Natural Science Foundation of Hubei Province ; Natural Science Foundation of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; NSERC ; NSERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Natural Science Foundation of Hubei Province ; Natural Science Foundation of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; NSERC ; NSERC ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Fundamental Research Funds for the Central Universities, China University of Geosciences, Wuhan ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Key Laboratory of Mineralogy and Metallogeny, Chinese Academy of Sciences ; Natural Science Foundation of Hubei Province ; Natural Science Foundation of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; Special Fund from Geological Bureau of Hubei Province ; NSERC ; NSERC
源URL[http://ir.iggcas.ac.cn/handle/132A11/96737]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Jian-Wei
作者单位1.Univ New Brunswick, Dept Earth Sci, 2 Bailey Dr, Fredericton, NB E3B 5A3, Canada
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Univ Johannesburg, Dept Geol, POB 524, Auckland Pk 2006, South Africa
4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
5.China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China
6.Deutch GeoForschungsZentrum, Potsdam 14473, Germany
推荐引用方式
GB/T 7714		 Hu, Hao,Li, Jian-Wei,Harlov, Daniel E.,et al. A genetic link between iron oxide-apatite and iron skarn mineralization in the Jinniu volcanic basin, Daye district, eastern China: Evidence from magnetite geochemistry and multi-mineral U-Pb geochronology[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2020,132(5-6):899-917.
APA Hu, Hao,Li, Jian-Wei,Harlov, Daniel E.,Lentz, David R.,Mcfarlane, Chris R. M.,&Yang, Yue-Heng.(2020).A genetic link between iron oxide-apatite and iron skarn mineralization in the Jinniu volcanic basin, Daye district, eastern China: Evidence from magnetite geochemistry and multi-mineral U-Pb geochronology.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,132(5-6),899-917.
MLA Hu, Hao,et al."A genetic link between iron oxide-apatite and iron skarn mineralization in the Jinniu volcanic basin, Daye district, eastern China: Evidence from magnetite geochemistry and multi-mineral U-Pb geochronology".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 132.5-6(2020):899-917.

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来源：地质与地球物理研究所

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