Geochronology, ore-forming processes and fluid sources of the Qinglonggou gold deposit, North Qaidam (NW China): Constraints from in-situ U-Pb dating of monazite and geochemistry of pyrite
文献类型：期刊论文
| 作者 | Li, Xing-Hui1,2; Fan, Hong-Rui1,2,3,6; Xie, Hai-Lin4; Yang, Kui-Feng1,2,3; Hollings, Pete5; Wei, Zhan-Hao4; Zhu, Ri-Xiang2,3; Zeng, Qing-Dong1,2,3; Liang, Gai-Zhong1,3; Wu, Jin-Jian1,3 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 149页码:16 |
| 关键词 | Pyrite Trace element Sulfur isotopes Monazite U-Pb age Overprinted gold-mineralization Qinglonggou gold deposit North Qaidam |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2022.105093 |
| 英文摘要 | The Tanjianshan goldfield is the most important gold producer in the North Qaidam, NW China. Genesis of gold deposits in Tanjianshan is enigmatic, primarily because of uncertainties as to timing, mineralization processes and fluid sources. We investigate these uncertainties through a comprehensive study of the texture and geochemistry (LA-MC-ICPMS trace elements and sulfur isotopes) of pyrite and in-situ U-Pb dating of monazite from the Qinglonggou gold deposit. Six types of pyrite with distinct textures, trace element contents and sulfur isotopes have been identified, and provide constraints on two overprinting gold-related hydrothermal events. Stage I consists of Py1, occurring as veinlets parallel to S1 deformation in a schist, is characterized by extremely low Co/Ni ratios with high contents of Ni, and high delta S-34 values (+14.9 parts per thousand to +16.1 parts per thousand), and were likely derived from metamorphism of the sedimentary strata in the Tanjianshan and Wandonggou Group. In stage II, Py2 occurs in the pyrite-quartz veins that cut Py1 veinlets. They have similar delta S-34 (+13.1 parts per thousand to +17.8 parts per thousand) to Py1, indicating that sulfur was likely derived from the dissolution of Py1. The stage I and II veins formed during an early gold pre-concentration event, which is constrained at 429.1 & PLUSMN; 5.9 Ma by in-situ U-Pb dating of monazite that coexists with Py1. Stage III includes Py3 and Py4 which occur in the altered carbonaceous schist and accompanying quartz veins. Trace metals are highest in Py3 (Ag, Au, Sb, and Bi) which represent the most economic ore stage in the deposit, whereas the following Py4 shows low concentrations of most trace elements due to abundant Py3 precipitation. In contrast, trace elements contents increase in Py5 to similar levels as those seen in Py3, suggesting a new pulse of fluid in stage IV. Minor Py6 grains precipitated in the youngest quartz-calcite veins associated with stage V, and contain low concentrations of trace elements. The delta S-34 values of Py3 (+5.2 parts per thousand to +6.0 parts per thousand) and Py4 (+4.2 parts per thousand to +6.1 parts per thousand) are within the range of magmatic sulfur, suggesting a dominantly magmatic source. The delta S-34 values increase from Py3-4 to Py5 (+6.3 parts per thousand to +7.4 parts per thousand), and to Py6 (+8.7 parts per thousand to +9.6 parts per thousand), probably due to increasing contribution from the host rocks, as well as decreasing fO(2), through incremental fluid-rock interaction. Stages III and IV represent a late gold-mineralizing event during Late Paleozoic to Early Mesozoic, while stage V is post-mineralization. The overprinting gold pre-concentration and mineralization events in the Tanjianshan goldfield correspond to orogenic evolution of the Proto-Tethys Ocean and Paleo-Tethys Ocean, respectively. |
| WOS关键词 | LA-ICP-MS ; SULFUR ISOTOPES ; OROGENIC GOLD ; XITIESHAN TERRANE ; TRACE-ELEMENTS ; WESTERN CHINA ; UHP BELT ; ZIRCON ; EVOLUTION ; MINERALIZATION |
| 资助项目 | National Natural Science Foundation of China[42002078] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0801] ; China Postdoctoral Science Foundation[2019M660788] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000865419300001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/107811]  |
| 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 |
| 通讯作者 | Fan, Hong-Rui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.First Inst Geol & Mineral Explorat Qinghai Prov, Qinghai 810600, Peoples R China 5.Lakehead Univ, Dept Geol, Thunder Bay, ON P7B 5E1, Canada 6.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xing-Hui,Fan, Hong-Rui,Xie, Hai-Lin,et al. Geochronology, ore-forming processes and fluid sources of the Qinglonggou gold deposit, North Qaidam (NW China): Constraints from in-situ U-Pb dating of monazite and geochemistry of pyrite[J]. ORE GEOLOGY REVIEWS,2022,149:16. |
| APA | Li, Xing-Hui.,Fan, Hong-Rui.,Xie, Hai-Lin.,Yang, Kui-Feng.,Hollings, Pete.,...&Wu, Jin-Jian.(2022).Geochronology, ore-forming processes and fluid sources of the Qinglonggou gold deposit, North Qaidam (NW China): Constraints from in-situ U-Pb dating of monazite and geochemistry of pyrite.ORE GEOLOGY REVIEWS,149,16. |
| MLA | Li, Xing-Hui,et al."Geochronology, ore-forming processes and fluid sources of the Qinglonggou gold deposit, North Qaidam (NW China): Constraints from in-situ U-Pb dating of monazite and geochemistry of pyrite".ORE GEOLOGY REVIEWS 149(2022):16. |
入库方式： OAI收割
来源：地质与地球物理研究所
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