| Mineralizing age of the Rushan lode gold deposit in the Jiaodong Peninsula：SHRIMP U-Pb dating on hydrothermal zircon |
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| 引用本文： | HU Fangfang1,FAN Hongrui1,YANG Jinhui1,WAN Yusheng2,LIU Dunyi2,ZHAI Mingguo1 & JIN Chengwei1 1.Key Laboratory of Mineral Resources,Institute of Geology and Geo- physics,Chinese Academy of Sciences,Beijing 100029,China,2.Beijing SHRIMP Centre,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China Correspondence should be addressed to Fan Hongrui(e-mail: fanhr@mail.igcas.ac.cn). Mineralizing age of the Rushan lode gold deposit in the Jiaodong Peninsula：SHRIMP U-Pb dating on hydrothermal zircon[J]. 科学通报(英文版), 2004, 49(15): 1629-1636. DOI: 10.1007/BF03184134 |
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| 作者姓名： | HU Fangfang1 FAN Hongrui1 YANG Jinhui1 WAN Yusheng2 LIU Dunyi2 ZHAI Mingguo1 & JIN Chengwei1 1.Key Laboratory of Mineral Resources Institute of Geology and Geo- physics Chinese Academy of Sciences Beijing 100029 China 2.Beijing SHRIMP Centre Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Correspondence should be addressed to Fan Hongrui(e-mail: fanhr@mail.igcas.ac.cn) |
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| 摘 要： | Knowledge of the mineralizing timing is fundamen-tal to understand the genesis of mineral deposits, and ex-act time spectrum of mineralization is essential to com-prehending the relationship among the genesis of en-dogenic hydrothermal deposits, regional tectonic-magma-tism event and the geodynamics of mineral deposits. The Jiaodong or eastern Shandong gold province islocated in the southeastern margin of the North Chinacraton, and belongs to the Mesozoic circum-Pacific oro-genic gold system…
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| 关 键 词： | 热液锆石 SHRIMP U-Pb定年 地质年代学 含金石英岩脉 胶东半岛 金矿沉积 矿化年代 |
| 收稿时间： | 2004-03-09 |
| 修稿时间： | 2004-04-19 |
Mineralizing age of the Rushan lode gold deposit in the Jiaodong Peninsula: SHRIMP U-Pb dating on hydrothermal zircon |
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| Hu,Fangfang,Fan,Hongrui,Yang,Jinhui,Wan,Yusheng,Liu,Dunyi,Zhai,Mingguo,Jin,Chengwei. Mineralizing age of the Rushan lode gold deposit in the Jiaodong Peninsula: SHRIMP U-Pb dating on hydrothermal zircon[J]. Chinese science bulletin, 2004, 49(15): 1629-1636. DOI: 10.1007/BF03184134 |
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| Authors: | Hu Fangfang Fan Hongrui Yang Jinhui Wan Yusheng Liu Dunyi Zhai Mingguo Jin Chengwei |
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| Affiliation: | e-mail: fanhr@mail.igcas.ac.cn |
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| Abstract: | Zircons from the auriferous quartz vein in the Rushan gold deposit, Jiaodong Peninsula, have high common Pb contents (206Pb6 = 2.00%–15.88%) and Th/U ratios (0.31–1.35), and trap primary CO2-H2O fluid inclusion similar to ore-forming fluids, indicating that they grew from high Th/U ratio ore-forming fluids responsible for gold mineralization. SHRIMP U-Pb analyses of these zircons gave an age of 117±3 Ma comparable with the ages reported by the former researches in the other areas in the Jiaodong Peninsula, which is interpreted as the age of gold mineralization at Rushan. The age of SHRIMP zircon U-Pb dating with 160±3 Ma from host rock Kunyushan monzogranite is different from that of the gold mineralization, indicating that there is no genetic relationship between gold mineralization and the granitic magmatism. SHRIMP U-Pb dating on hydrothermal zircons from auriferous quartz veins could be used to constrain the timing of lode gold mineralization and the relationship to relevant hydrothermal event. |
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| Keywords: | hydrothermal zircon SHRIMP U-Pb dating geochro- nology auriferous quartz vein Rushan gold deposit Jiaodong Pen- insula. |
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