Ore-forming processes in the Wang'ershan gold deposit (Jiaodong, China): Insight from microtexture, mineral chemistry and sulfur isotope compositions
文献类型：期刊论文
| 作者 | Hu, Huan-Long1,3; Fan, Hong-Rui1,2,3; Santosh, M.4,6; Liu, Xuan5; Cai, Ya-Chun1; Yang, Kui-Feng1,2,3 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 123页码:23 |
| ISSN号 | 0169-1368 |
| 关键词 | Microtexture In situ sulfur isotope In situ trace elements Gentle fluid immiscibility Physicochemical conditions Wang'ershan gold deposit |
| DOI | 10.1016/j.oregeorev.2020.103600 |
| 英文摘要 | ( )The microtexture, trace element characteristics and sulfur isotopic features of ore-related minerals provide important clues to trace physico-chemical conditions and source characteristics of ore formation. In this study, we investigate the Wang'ershan gold deposit in the Jiaodong gold province of eastern North China Craton where three hydrothermal stages were distinguished. Stage I is characterized by K-feldspar, sericite, quartz with minor pyrite precipitation (Py-I); sericite, quartz (Qtz-a) and pyrite (Py-II) with minor gold precipitated during stage II; and stage III involved quartz (Qtz-b), gold, and polymetallic sulfides with minor pyrite (Py-III). In situ delta S-34 results show a decreasing trend from 21.7 to 14.6 parts per thousand (Py-I) to 9.2-8.3 parts per thousand (Py-II) and 8.9-8.6 parts per thousand (Py-III). The Py-II and PyIII are poor in mineral inclusions and porous microtextures, and have no oscillatory composition zoning. The Co content is 1-2 order of magnitudes higher in Py-I (371.2 - 823.2 ppm, ay. 597.2 ppm) than late stage pyrites (0.4 - 524.2 ppm, ay. 95.4 ppm). Qtz-a show cataclastic breccia cemented by Qtz-b with little dissolution during the injection of stage III ore-forming fluids. The Al contents decrease from Qtz-a (49.0 - 426.6 ppm) to Qtz-b (18.2 - 46.8 ppm). Based on the sulfur isotope, trace element and microtextural characteristics in Py-II and Py-III, combined with previous fluid inclusion studies, we infer that the ore-forming fluids of stage II and III experienced gentle immiscibility and were suggested to be of different evolutionary stages of a single ore-forming fluid sharing common sources with similar and near-equilibrium physicochemical conditions. The trace element characteristics with lack of oscillatory compositional zoning in the two stages of quartz suggest gentle cooling with lack of any abrupt change of physicochemical conditions during fluid immiscibility. The decoupling of Au and As contents in Py-II and Py-III was likely controlled by chemisorption of gold in pyrite structure. Complex variation in geochemical features of ore-forming fluids from early alteration to main mineralization period is indicated by the large range of delta S-34 and Co contents in Py-I and late stage pyrites, and the differences in alteration processes. Based on a comparison of the Co/Ni, Ni and As among pyrites from the Wang'ershan gold deposit, typical porphyry deposits and orogenic gold deposits, together with the large positive deviation of delta S-34 relative to mantle values, we propose that ore-forming materials of the Wang'ershan gold deposit were derived from mixed sources involving magmatic hydrothermal-related and sedimentary strata-related components. |
| WOS关键词 | ABLATION ICP-MS ; ZIRCON U-PB ; TRACE-ELEMENTS ; FLUID EVOLUTION ; EASTERN CHINA ; THERMODYNAMIC PROPERTIES ; ARSENIAN PYRITE ; INVISIBLE GOLD ; SOUTH CHINA ; AU DEPOSIT |
| 资助项目 | National Key Research and Development Program[2016YFC0600105] ; National Natural Science Foundation of China[41672094] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000540196600022 |
| 资助机构 | National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96901]  |
| 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 | Fan, Hong-Rui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 4.Univ Adelaide, Dept Earth Sci, Adelaide, SA 5005, Australia 5.Univ Lorraine, GeoRessources Lab, CREGU, CNRS, F-54500 Vandoeuvre Les Nancy, France 6.China Univ Geosci Beijing, Sch Earth Sci & Resources, 29 Xueyuan Rd, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Huan-Long,Fan, Hong-Rui,Santosh, M.,et al. Ore-forming processes in the Wang'ershan gold deposit (Jiaodong, China): Insight from microtexture, mineral chemistry and sulfur isotope compositions[J]. ORE GEOLOGY REVIEWS,2020,123:23. |
| APA | Hu, Huan-Long,Fan, Hong-Rui,Santosh, M.,Liu, Xuan,Cai, Ya-Chun,&Yang, Kui-Feng.(2020).Ore-forming processes in the Wang'ershan gold deposit (Jiaodong, China): Insight from microtexture, mineral chemistry and sulfur isotope compositions.ORE GEOLOGY REVIEWS,123,23. |
| MLA | Hu, Huan-Long,et al."Ore-forming processes in the Wang'ershan gold deposit (Jiaodong, China): Insight from microtexture, mineral chemistry and sulfur isotope compositions".ORE GEOLOGY REVIEWS 123(2020):23. |
入库方式： OAI收割
来源：地质与地球物理研究所
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