The 127 Ma gold mineralization in the Wulong deposit, Liaodong Peninsula, China: Constraints from molybdenite Re-Os, monazite U-Th-Pb, and zircon U-Pb geochronology
文献类型：期刊论文
| 作者 | Yu, Bing2,3,4,5,9; Zeng, Qingdong2,3,5; Frimmel, Hartwig E.6,9; Qiu, Haicheng10; Li, Qiuli2,3,7; Yang, Jinhui2,3,7; Wang, Yongbin8; Zhou, Lingli1; Chen, Peiwen2,3,5; Li, Jianping10 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 121页码:17 |
| ISSN号 | 0169-1368 |
| 关键词 | Zircon U-Pb age Molybdenite Re-Os age Monazite U-Th-Pb age Early Cretaceous gold mineralization Wulong gold deposit Liaodong Peninsula |
| DOI | 10.1016/j.oregeorev.2020.103542 |
| 英文摘要 | The Wulong deposit is a large tonnage deposit (> 80 t of Au), characterized by quartz vein style of gold mineralization in the Liaodong Peninsula, China. The auriferous quartz veins are mainly hosted by Late Jurassic gneissic two-mica granite (165-157 Ma) and Early Cretaceous granodiorite (129 Ma) and are structurally controlled by NNEand NW-trending faults. Previous attempts to date the gold mineralization yielded ambiguous results (135-112 Ma). Here we report the first in-situ and direct age constraint for gold mineralization at Wulong. Five molybdenite samples from Mo-bearing quartz +/- pyrite veins yielded an isochron age of 127.6 +/- 2.3 Ma. In-situ SIMS U-Th-Pb dating of hydrothermal monazite that coexists with gold-bearing pyrite and quartz yielded a Pb-208-Th-232 age of 126.7 +/- 3.2 Ma. These robust ages, together with new age data of the Wulong host intrusion and post-ore dike, allow for a better interpretation of the ore genesis of the Wulong deposit relative to a well constrained sequence of regional geological events. Zircon U-Pb dating of the Wulong host intrusion (gneissic two-mica granite), representing the oldest magmatic event at Wulong, gave a weighted mean age of 159.3 +/- 1.4 Ma that is interpreted to be the magma emplacement age. Subsequent magmatic events are recorded by the Early Cretaceous dikes with zircon U-Pb ages between 127 and 113 Ma. A post-ore diorite porphyry dike that crosscuts the Early Cretaceous dikes has a U-Pb zircon age of 121.5 +/- 1.5 Ma. All the lines of geochronology evidence suggest a distinct genetic link between the gold mineralization and the Early Cretaceous magmatism in the Wulong orefield. This episode of magmatism and mineralization corresponds to the lithospheric thinning within the northeastern North China Craton, which is triggered by the subduction of the Paleo-Pacific plate. |
| WOS关键词 | SOUTH LIAOHE GROUP ; LA-ICP-MS ; NORTH CHINA ; RB-SR ; H-O ; GEOLOGICAL SIGNIFICANCE ; HYDROTHERMAL MONAZITE ; TECTONIC IMPLICATIONS ; QINGCHENGZI OREFIELD ; JURASSIC GRANITES |
| 资助项目 | National Key Research and Development Program of China[2016YFC0600108-03-1] ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University[2019-LAMD-K09] ; China Scholarship Council[201904910709] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000595010200001 |
| 资助机构 | National Key Research and Development Program of China ; National Key Research and Development Program of China ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; China Scholarship Council ; China Scholarship Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; China Scholarship Council ; China Scholarship Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; China Scholarship Council ; China Scholarship Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; Opening Project of State Key Laboratory for Mineral Deposits Research, Nanjing University ; China Scholarship Council ; China Scholarship Council |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/99898]  |
| 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 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 | Zeng, Qingdong |
| 作者单位 | 1.Univ Coll Dublin, ICRAG, Sch Earth Sci, Dublin 4, Ireland 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 4.Nanjing Univ, State Key Lab Mineral Deposits Res, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 5.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China 6.Univ Cape Town, Dept Geol Sci, ZA-7700 Rondebosch, South Africa 7.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 8.Yunnan Univ, Yunnan Key Lab Earth Syst Sci, Kunming 650500, Yunnan, Peoples R China 9.Univ Wurzburg, Inst Geog & Geol, Bavarian Georesources Ctr, D-97074 Wurzburg, Germany 10.Liaoning Wulong Gold Min Co Ltd, Dandong 118012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Bing,Zeng, Qingdong,Frimmel, Hartwig E.,et al. The 127 Ma gold mineralization in the Wulong deposit, Liaodong Peninsula, China: Constraints from molybdenite Re-Os, monazite U-Th-Pb, and zircon U-Pb geochronology[J]. ORE GEOLOGY REVIEWS,2020,121:17. |
| APA | Yu, Bing.,Zeng, Qingdong.,Frimmel, Hartwig E..,Qiu, Haicheng.,Li, Qiuli.,...&Li, Jianping.(2020).The 127 Ma gold mineralization in the Wulong deposit, Liaodong Peninsula, China: Constraints from molybdenite Re-Os, monazite U-Th-Pb, and zircon U-Pb geochronology.ORE GEOLOGY REVIEWS,121,17. |
| MLA | Yu, Bing,et al."The 127 Ma gold mineralization in the Wulong deposit, Liaodong Peninsula, China: Constraints from molybdenite Re-Os, monazite U-Th-Pb, and zircon U-Pb geochronology".ORE GEOLOGY REVIEWS 121(2020):17. |
入库方式： OAI收割
来源：地质与地球物理研究所
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