The genesis of Guanting Pb-Zn deposits in the Jianshui area, Yunnan Province, SW China: Constraints from geochronology, S isotopes and trace elements
文献类型：期刊论文
| 作者 | Shen, Xiaoli2; Lin, Honghong2; Zhang, Baolin1,3,4; Du, Qingxiang2 |
| 刊名 | MINERALOGY AND PETROLOGY
 |
| 出版日期 | 2021-11-17 |
| 页码 | 23 |
| 关键词 | Guanting Emeishan flood basalts Mississippi Valley-type deposit Hydrothermal mineralization |
| ISSN号 | 0930-0708 |
| DOI | 10.1007/s00710-021-00768-6 |
| 英文摘要 | The Guanting Pb-Zn deposits in the Jianshui area, southern Yunnan Province, SW China, are located in the conjunction of the Yangtze Block, Cathaysian Block and Sanjiang Block, and they belong to part of the Sichuan-Yunnan-Guizhou (SYG) Pb-Zn metallogenic province. The Pb-Zn orebodies occur in basaltic and limestone breccia at the interfaces between the Maokou limestone and Emeishan basalt. Here, we use zircon U-Pb dating, Rb-Sr dating, trace elements and S isotope data of sulfides to constrain the ages and genesis of deposits. Petrological investigations reveal two main stages of mineralization. Early-stage sphalerites yield a Rb-Sr age of 251.1 +/- 8.5 Ma, and it is contemporaneous with the Guanting basalt within the range of error, which has a concordant age of 247.3 +/- 4.2 Ma. This metallogenic age indicates that early-stage mineralization may be related to Emeishan volcanic hydrothermal activity. Initial value of Sr-87/Sr-86 (0.709) and rare earth elements (REE) patterns of minerals suggest that ore-forming materials were likely derived from mixed mantle-crust sources, and paleo-seawater participated in deposition of Pb-Zn ore. There are two peaks of sulfur isotope (delta S-34) in the Huangtian and Xinzhai deposits. The delta S-34 of early-stage sulfide is concentrated at + 1.1 parts per thousand VCDT to + 3.9 parts per thousand VCDT, suggesting that the sulfur was directly supplied by basaltic volcanic activity. Late-stage colloidal sulfides have delta S-34 ranging from + 6 parts per thousand VCDT to + 9 parts per thousand VCDT, suggesting marine sulfur origin, and that reduced sulfur derived from carbonate strata by thermochemical sulfate reduction (TSR). According to the geochemical characteristics, geochronology and regional geodynamic setting, we assume that early-stage mineralization in the Guanting Pb-Zn deposits is Emeishan volcanic hydrothermal mineralization, and late-stage mineralization is similar with Mississippi Valley-type (MVT) deposit. Our results provide new evidence for understanding hydrothermal mineralization associated with the Emeishan flood basalts in the SYG area. |
| WOS关键词 | LARGE IGNEOUS PROVINCE ; ZIRCON U-PB ; EMEISHAN-FLOOD-BASALTS ; LEAD-ZINC DEPOSIT ; RB-SR ; SICHUAN PROVINCE ; SOUTH CHINA ; FLUID INCLUSIONS ; MINOR ELEMENTS ; GEOCHEMICAL CONSTRAINTS |
| 资助项目 | National Natural Science Foundation of China[41502064] ; National Natural Science Foundation of China[41602110] ; Project of Shandong Province Higher Educational Science and Technology Program[J18KA213] ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents[2017RCJJ029] ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team[2019KJH004] ; Qingdao Postdoctoral Applied Research Project[2015193] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000719772400001 |
| 出版者 | SPRINGER WIEN |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Project of Shandong Province Higher Educational Science and Technology Program ; Project of Shandong Province Higher Educational Science and Technology Program ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; support plan of Shandong Province Higher Educational Science and technology for Youth Innovation Team ; Qingdao Postdoctoral Applied Research Project ; Qingdao Postdoctoral Applied Research Project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103837]  |
| 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 | Du, Qingxiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, 19 Beitucheng West Rd, Beijing 100029, Peoples R China 2.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Shandong Prov Key Lab Deposit Mineralizat & Sedim, 579 Qianwangang Rd, Qingdao 266590, Peoples R China 3.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Earth Sci, 19 Beitucheng West Rd, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Xiaoli,Lin, Honghong,Zhang, Baolin,et al. The genesis of Guanting Pb-Zn deposits in the Jianshui area, Yunnan Province, SW China: Constraints from geochronology, S isotopes and trace elements[J]. MINERALOGY AND PETROLOGY,2021:23. |
| APA | Shen, Xiaoli,Lin, Honghong,Zhang, Baolin,&Du, Qingxiang.(2021).The genesis of Guanting Pb-Zn deposits in the Jianshui area, Yunnan Province, SW China: Constraints from geochronology, S isotopes and trace elements.MINERALOGY AND PETROLOGY,23. |
| MLA | Shen, Xiaoli,et al."The genesis of Guanting Pb-Zn deposits in the Jianshui area, Yunnan Province, SW China: Constraints from geochronology, S isotopes and trace elements".MINERALOGY AND PETROLOGY (2021):23. |
入库方式： OAI收割
来源：地质与地球物理研究所
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