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Bi/Te control on gold mineralizing processes in the North China Craton: Insights from the Wulong gold deposit

文献类型：期刊论文

作者Feng, Haoxuan2,3,5; Shen, Ping2,3,5; Zhu, Rixiang1,5; Tomkins, Andrew G.4; Brugger, Joel4; Ma, Ge3; Li, Changhao3,5; Wu, Yang2,3,5
刊名MINERALIUM DEPOSITA
出版日期2022-06-02
页码24
关键词Bismuth minerals Liquid bismuth collector Chemical fluctuations Wulong gold deposit North China Craton
ISSN号0026-4598
DOI10.1007/s00126-022-01120-4
英文摘要The Wulong gold deposit (> 80 t Au) is located at the northeastern margin of the North China Craton (NCC). Gold in the most economically important quartz veins (Stages 2 and 3) is associated with a varied assemblage of Bi and Te minerals. Stage 2 is characterized by, in a temporal order, native gold-native bismuth-maldonite-hedleyite, bismuthinite-Bi-sulfotellurides, electrum-hessite-Bi-Pb-Ag sulfosalts, Bi-Pb sulfosalts, and Bi-Pb-sulfotellurides. All of these minerals except maldonite, electrum, hessite, and Bi-sulfosalts are present in Stage 3 veins, which also contain jonassonite and unnamed minerals with stoichiometry of Bi8Te3 and Bi5Te3. These complex Bi mineral assemblages resulted from changes in Pb, Ag, Te and Bi concentrations in reduced hydrothermal fluids both locally and temporally, from Stage 2 to 3. Texturally, approximately 85% of the gold grains are associated with almost all Bi minerals in each main-stage mineralization. Quartz-vein ores from Stages 2 and 3 have high Bi concentrations (up to 7332 ppm) and show a positive correlation between Bi and Au, with Bi/Au ratios > 10. These textural and geochemical associations, together with the occurrence of numerous droplet-like blebs and small inclusion trails of native bismuth and Bi-tellurides with native gold, maldonite, or jonassonite, suggest that Bi-rich melts may have formed from the hydrothermal fluids of Stages 2 and 3, and acted as an Au scavenger in a complex Bi-Au-Pb-Ag-Te system. Hence, the intimate association of Bi and Au at Wulong is the result of Au enrichment via the liquid bismuth collector mechanism. Unlike Wulong, however, other deposits in the NCC, such as Yangzhaiyu (Xiaoqinling district), Guilaizhuang (Jiaodong district) and Dongping (Jidong district), are characterized by low Bi concentrations, and are much richer in Te than Bi, so these systems could not generate low-melting point Bi-rich polymetallic melts. The low-sulfur Bi-Au-Pb-Ag-Te association at Wulong is consistent with that observed in reduced intrusion-related gold systems elsewhere and suggests that hydrothermal fluids may have been derived from the co-located Early Cretaceous diorite-granite porphyry dyke swarm.
WOS关键词ORE-FORMING FLUIDS ; U-PB AGE ; LIAODONG PENINSULA ; HYDROTHERMAL FLUIDS ; JIAODONG PENINSULA ; BISMUTH MELTS ; XIAOQINLING DISTRICT ; INTRUSIVE ROCKS ; EASTERN BLOCK ; AU
资助项目National Natural Science Foundation of China[91414301] ; National Natural Science Foundation of China[91962213] ; International Partnership Program of International Cooperation Bureau, Chinese Academy of Sciences[132A11KYSB20190070]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000804556000001
出版者SPRINGER
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 ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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
源URL[http://ir.iggcas.ac.cn/handle/132A11/106034]  
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
地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Shen, Ping
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, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
4.Monash Univ, Sch Earth Atmosphere & Environm, Clayton, Vic 3800, Australia
5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Feng, Haoxuan,Shen, Ping,Zhu, Rixiang,et al. Bi/Te control on gold mineralizing processes in the North China Craton: Insights from the Wulong gold deposit[J]. MINERALIUM DEPOSITA,2022:24.
APA Feng, Haoxuan.,Shen, Ping.,Zhu, Rixiang.,Tomkins, Andrew G..,Brugger, Joel.,...&Wu, Yang.(2022).Bi/Te control on gold mineralizing processes in the North China Craton: Insights from the Wulong gold deposit.MINERALIUM DEPOSITA,24.
MLA Feng, Haoxuan,et al."Bi/Te control on gold mineralizing processes in the North China Craton: Insights from the Wulong gold deposit".MINERALIUM DEPOSITA (2022):24.

入库方式： OAI收割

来源：地质与地球物理研究所

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