Ore genesis of Axi post-collisional epithermal gold deposit, western Tianshan, NW China: Constraints from U-Pb dating, Hf isotopes, and pyrite in situ sulfur isotopes
文献类型：期刊论文
| 作者 | Zheng, Jiahao1,2; Shen, Ping2; Li, Changhao2 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 117页码:14 |
| 关键词 | Mineralogy Chronology Axi gold deposit Western Tianshan |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2019.103290 |
| 英文摘要 | The Axi gold deposit has long been regarded as a typical Paleozoic low sulfidation epithermal deposit, located in the western Tianshan, in the Central Asian Orogenic Belt (CADS). SIMS zircon U-Pb dating of the ore-bearing andesite and dacite yielded concordia ages of 350.8 +/- 2.7 Ma and 351.3 +/- 3.1 Ma, respectively. In situ SIMS hydrothermal ruffle U-Pb dating yielded two Pb-207 corrected ages as 306.1 +/- 16.9 Ma and 303.8 +/- 14.6 Ma, respectively. These ages are considerably younger than the zircon SIMS U-Pb ages of ore-bearing volcanic rocks, which precludes a genetic link between the epithermal gold mineralization and the subduction-related Late Devonian-Early Carboniferous magmatism in the western Tianshan. Instead, the gold mineralization is interpreted to be genetically related to a buried similar to 300 Ma pluton that formed in a post-collisional environment. Combined with previously published zircon Hf isotopic compositions of similar to 300 Ma felsic intrusive rocks from western Tianshan, the results show that similar to 300 Ma felsic rocks have higher zircon epsilon(Hf)(t) values than those from similar to 351 Ma felsic rocks in the Axi deposit. These elevated epsilon(Hf)(t) values suggest that mantle material inputs of similar to 300 Ma Axi epithermal deposit in a post-collisional environment. Pyrite, the most common sulfide in the Axi ores, displays heterogeneous textures and has a large variation of As contents and sulfur isotopes, suggesting complex ore-forming processes in the Axi deposit. This study highlights the importance of in situ isotopes of hydrothermal minerals to decode the ore-forming histories of epithermal systems. |
| WOS关键词 | EASTERN TIANSHAN ; TRACE-ELEMENT ; TECTONIC EVOLUTION ; FLUID INCLUSIONS ; MAGMATIC ROCKS ; NORTH TIANSHAN ; VOLCANIC ARC ; TIEN-SHAN ; ZIRCON ; GEOCHEMISTRY |
| 资助项目 | International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences[132A11ICYSB20190070] ; National Key R&D Program of China[2018YFC0604004] ; National Key R&D Program of China[2018YFC0603801] ; NSFC[41903042] ; NSFC[41530206] ; China Postdoctoral Science Foundation[2016LH0003] ; China Postdoctoral Science Foundation[2017M610984] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000515206900010 |
| 出版者 | ELSEVIER |
| 资助机构 | International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; NSFC ; NSFC ; NSFC ; NSFC ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95629]  |
| 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 | Zheng, Jiahao; Shen, Ping |
| 作者单位 | 1.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Jiahao,Shen, Ping,Li, Changhao. Ore genesis of Axi post-collisional epithermal gold deposit, western Tianshan, NW China: Constraints from U-Pb dating, Hf isotopes, and pyrite in situ sulfur isotopes[J]. ORE GEOLOGY REVIEWS,2020,117:14. |
| APA | Zheng, Jiahao,Shen, Ping,&Li, Changhao.(2020).Ore genesis of Axi post-collisional epithermal gold deposit, western Tianshan, NW China: Constraints from U-Pb dating, Hf isotopes, and pyrite in situ sulfur isotopes.ORE GEOLOGY REVIEWS,117,14. |
| MLA | Zheng, Jiahao,et al."Ore genesis of Axi post-collisional epithermal gold deposit, western Tianshan, NW China: Constraints from U-Pb dating, Hf isotopes, and pyrite in situ sulfur isotopes".ORE GEOLOGY REVIEWS 117(2020):14. |
入库方式： OAI收割
来源：地质与地球物理研究所
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