Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1130/B35180.1 |
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 | |
Hu, Hao1; Li, Jian-Wei1,2; Harlov, Daniel E.2,3,4; Lentz, David R.5; Mcfarlane, Chris R. M.5; Yang, Yue-Heng6 | |
2020-05-01 | |
发表期刊 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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ISSN | 0016-7606 |
EISSN | 1943-2674 |
出版年 | 2020 |
卷号 | 132期号:5-6页码:899-917 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany; South Africa; Canada |
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. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000530917400001 |
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 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279467 |
专题 | 地球科学 |
作者单位 | 1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China; 2.China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China; 3.Deutch GeoForschungsZentrum, Potsdam 14473, Germany; 4.Univ Johannesburg, Dept Geol, POB 524, Auckland Pk 2006, South Africa; 5.Univ New Brunswick, Dept Earth Sci, 2 Bailey Dr, Fredericton, NB E3B 5A3, Canada; 6.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
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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