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An Early Permian epithermal gold system in the Tulasu Basin in North Xinjiang, NW China: Constraints from in situ oxygen-sulfur isotopes and geochronology

文献类型：期刊论文

作者Dong, Leilei1,2; Wan, Bo1,2,3; Deng, Chen1,2; Cai, Keda4; Xiao, Wenjiao1,2,3,4
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2018-03-01
卷号153页码:412-424
关键词Epithermal Au deposits Axi Jingxi-Yehnand In situ analysis O-S isotopes Ti-in-quartz thermometer
ISSN号1367-9120
DOI10.1016/j.jseaes.2017.07.044
文献子类Article
英文摘要The Axi and Jingxi-Yelmand gold deposits, being the largest gold deposits in the Chinese North Tianshan, NW China, are located ca. 10 km apart in the Tulasu Basin, and are hosted by the Late Devonian - Early Carboniferous Dahalajunshan Formation. In situ LA-ICP-MS titanium analyses on quartz from the Axi and Jingxi-Yelmand deposits are broadly identical. Accordingly, the calculated ore-forming temperatures by Ti-in-quartz thermometer give average temperatures of 279 degrees C and 294 degrees C, respectively. Results of in situ SIMS analyses of oxygen and sulfur isotopes on quartz and pyrite from these two deposits are similar. Temperature-corrected fluids of the Axi deposit have 8180 values of 2.6-8.1 parts per thousand and delta S-34 values of 0.8-2.4 parts per thousand, whereas the fluids of the Jingxi-Yelmand deposit have delta O-18 of 6.4-8.9 parts per thousand and delta S-34 of -0.4 to 4.0 parts per thousand. The oxygen and sulfur isotopes from the two deposits indicate a magmatic origin. LA-ICP-MS zircon U-Pb ages of Aqialehe Formation sandstone provided a lower limit for the mineralization timing of the Axi deposit (288 Ma). In situ SIMS U-Pb analyses on entrapped zircon (297 Ma) and newly recognized 284.5 Ma columnar rhyolite implies that the Jingxi-Yelmand deposit formed in the Early Permian. Based on the magmatic affinity of the ore fluids, similar age and ore-formation temperatures, we propose that the Axi and Jingxi-Yelmand deposits comprise an epithermal gold system, which was driven by the same Permian magma in the Tulasu Basin. The ore geological features together with our new results indicate that the Axi and Jingxi-Yelmand deposits are intermediate and high sulfidation type epithermal deposits, respectively.
WOS关键词CARBONIFEROUS VOLCANIC-ROCKS ; ORE-FORMING PROCESSES ; WESTERN TIANSHAN ; HYDROGEN ISOTOPE ; ACID-SULFATE ; DEPOSITS ; ZIRCON ; QUARTZ ; MINERALIZATION ; GEOCHEMISTRY
WOS研究方向Geology
语种英语
WOS记录号WOS:000424181200023
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; 41672085) ; 41672085) ; 41672085) ; 41672085) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; 41672085) ; 41672085) ; 41672085) ; 41672085) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; 41672085) ; 41672085) ; 41672085) ; 41672085) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Basic Research Program of China(2014CB448000) ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; National Science Foundation of China(41390445 ; 41672085) ; 41672085) ; 41672085) ; 41672085)
源URL[http://ir.iggcas.ac.cn/handle/132A11/82699]  
专题中国科学院地质与地球物理研究所
通讯作者Wan, Bo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714		 Dong, Leilei,Wan, Bo,Deng, Chen,et al. An Early Permian epithermal gold system in the Tulasu Basin in North Xinjiang, NW China: Constraints from in situ oxygen-sulfur isotopes and geochronology[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,153:412-424.
APA Dong, Leilei,Wan, Bo,Deng, Chen,Cai, Keda,&Xiao, Wenjiao.(2018).An Early Permian epithermal gold system in the Tulasu Basin in North Xinjiang, NW China: Constraints from in situ oxygen-sulfur isotopes and geochronology.JOURNAL OF ASIAN EARTH SCIENCES,153,412-424.
MLA Dong, Leilei,et al."An Early Permian epithermal gold system in the Tulasu Basin in North Xinjiang, NW China: Constraints from in situ oxygen-sulfur isotopes and geochronology".JOURNAL OF ASIAN EARTH SCIENCES 153(2018):412-424.

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来源：地质与地球物理研究所

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