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A magmatic-hydrothermal origin of the Xinfang gold deposit, Liaodong Peninsula, China, revealed by in-situ S-Pb isotopes and trace element analyses of pyrite

文献类型：期刊论文

作者Yu, Bing4,5,6,7; Zeng, Qingdong5,6,7; Frimmel, Hartwig E.4,8; Zhou, Lingli1; Mcclenaghan, Sean H.9; Drakou, Foteini9; Wang, Yongbin2; Chen, Peiwen7; Yu, Chuang3
刊名RESOURCE GEOLOGY
出版日期2021-04-01
卷号71期号:2页码:144-160
关键词in‐ situ S‐ Pb isotopes Liaodong Peninsula North China Craton pyrite chemistry Xinfang gold deposit
ISSN号1344-1698
DOI10.1111/rge.12257
英文摘要The Xinfang deposit is a large gold deposit (>20 t of Au) on the southern edge of the Liaodong Peninsula, China. A total of 37 gold-bearing orebodies are identified along NS- and NW-striking faults and are mainly hosted by the Archean and Neoproterozoic metamorphic rocks. Three stages of hydrothermal mineralization are distinguished, including Stage I of dominant quartz +/- pyrite (Py1), Stage II of quartz-polymetallic sulfide (Py2), and Stage III of quartz-calcite +/- pyrite (Py3). Gold primarily occurs at the Stage II in association with intensive silicification, pyritization, and sericitization. Here, we report on high-precision in-situ LA-MC-ICP-MS analyses of S and Pb isotopic compositions of the sulfide minerals and LA-ICP-MS analyses of trace element signature of the pyrite from the Xinfang gold deposit. The delta S-34 values of the sulfides range from 1.3 to 5.3 parts per thousand, which is consistent with a magmatic origin of S. The sulfides yield Pb-208/Pb-204, Pb-207/Pb-204, and Pb-206/Pb-204 ratios of 37.497-37.773, 15.323-15.410, and 17.004-17.229, respectively, which deviate from the values of the wall rocks, suggesting an external Pb source. The in-situ LA-ICP-MS spot analyses of the pyrite reveals that gold occurs in two generations of pyrite (Py2 and Py3) but at low concentrations (<= 0.06 ppm for Py2, <= 0.24 ppm for Py3). Visible gold, however, only occurs in the Stage II assemblage as inclusions in pyrite and quartz, and is distributed along the margins or within the fractures of the sulfides. The Py2 shows high Co, Ni, and As concentrations and is depleted in other trace elements typical of a magmatic-hydrothermal derivation. In contrast, Py3 exhibits low concentrations in most trace elements. Trace element mapping of Py2 revealed correlations between Fe and Co, as well as Ni and As, indicating their couped substitution in the pyrite structure. The available geological, petrographic and geochemical data consistently suggest that the Xinfang gold deposit formed during the Early Cretaceous by hydrothermal fluids of magmatic contribution.
资助项目National Key Research and Development Program of China[2016YFC0600108-03-1] ; China Scholarship Council[201904910709]
WOS研究方向Geology ; Mineralogy
语种英语
WOS记录号WOS:000615770100001
出版者WILEY
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/100103]  
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Zeng, Qingdong
作者单位1.Univ Coll Dublin, Sch Earth Sci, iCRAG, Dublin, Ireland
2.Yunnan Univ, Yunnan Key Lab Earth Syst Sci, Kunming, Yunnan, Peoples R China
3.Dalian Jinlai Min Co Ltd, Dalian, Peoples R China
4.Univ Wurzburg, Inst Geog & Geol, Bavarian Georesources Ctr, Wurzburg, Germany
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
6.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
7.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China
8.Univ Cape Town, Dept Geol Sci, Rondebosch, South Africa
9.Trinity Coll Dublin, Dept Geol, iCRAG, Museum Bldg, Dublin, Ireland
推荐引用方式
GB/T 7714		 Yu, Bing,Zeng, Qingdong,Frimmel, Hartwig E.,et al. A magmatic-hydrothermal origin of the Xinfang gold deposit, Liaodong Peninsula, China, revealed by in-situ S-Pb isotopes and trace element analyses of pyrite[J]. RESOURCE GEOLOGY,2021,71(2):144-160.
APA Yu, Bing.,Zeng, Qingdong.,Frimmel, Hartwig E..,Zhou, Lingli.,Mcclenaghan, Sean H..,...&Yu, Chuang.(2021).A magmatic-hydrothermal origin of the Xinfang gold deposit, Liaodong Peninsula, China, revealed by in-situ S-Pb isotopes and trace element analyses of pyrite.RESOURCE GEOLOGY,71(2),144-160.
MLA Yu, Bing,et al."A magmatic-hydrothermal origin of the Xinfang gold deposit, Liaodong Peninsula, China, revealed by in-situ S-Pb isotopes and trace element analyses of pyrite".RESOURCE GEOLOGY 71.2(2021):144-160.

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来源：地质与地球物理研究所

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