Contribution of Precambrian basements to the Mesozoic ore-fluid system: An illustration using the Majiayao gold deposit, Jiaodong, China
文献类型：期刊论文
| 作者 | Feng, Kai1,4,5; Fan, Hong-Rui1,5,6; Ulrich, Thomas2; Yang, Kui-Feng1,5,6; Hu, Fang-Fang1,5,6; Liu, Xuan3 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 139页码:12 |
| 关键词 | Xenotime U-Pb age Monazite Sm-Nd isotope Ankerites Rb-Sr isotope Sulfur isotope Metamorphic terrane Majiayao gold deposit |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2021.104447 |
| 英文摘要 | In contrast to most Mesozoic granite-hosted gold deposits in the giant Jiaodong gold province (China), the Majiayao deposit represents a significant example hosted in the Archean high-grade metamorphic terrane. The mineralization is characterized by auriferous quartz-sulfide veins together with notable Fe-bearing carbonates (ankerite and siderite), iron oxides and barite. In this study, the comprehensive in-situ analyses of vein-hosted hydrothermal minerals (such as: xenotime U-Pb dating, ankerite Rb-Sr isotopes and monazite Sm-Nd isotopes) and sulfur isotopic analyses of gold-bearing sulfides are used to constrain the timing of mineralization and to better understand the ore genesis. The syn-ore hydrothermal xenotime yielded a U-Pb age of 120.0 +/- 1.2 Ma marking timing of gold mineralization, which is much younger than wallrocks' latest metamorphism at 1950 to 1850 Ma. The relatively higher and variable initial Sr-87/Sr-86 ratios (0.715809-0.718753) of ore-related ankerite may be leached from ore-hosting Archean metamorphic rocks and/or regional Neoproterozoic Penglai Group low-grade metasedimentary rocks via extensive fluid-rock interactions. This inference is also supported by the newly reported near-zero delta S-34 values (-1.2 to 1.4 parts per thousand) of pyrite from altered wallrocks, which are significantly comparable to the surrounding Archean plagioclase amphibolite. The monazite has relatively homogenous epsilon(Nd) ((t=120Ma)) values ranging from -19.3 to -17.6, which are much higher than the Nd isotope compositions of the ore hosting Archean high-grade metamorphic rocks. Combining the widespread mafic dykes and previous relevant geochemical studies, it is proposed that the ore-forming fluids were probably derived from deeply mantle-related contents, followed by intense interaction with Archean basements at the shallow crustal level. In addition, the progressive decrease of delta S-34 values of pyrite and more appearances of iron oxides and barite from early to late mineralization stages, are ascribed to gradual fluid oxidation by extensive carbonatization of Fe-rich Archean wallrocks. |
| WOS关键词 | U-PB GEOCHRONOLOGY ; STRONTIUM ISOTOPE SYSTEMATICS ; EASTERN NORTH CHINA ; OROGENIC GOLD ; SM-ND ; JIAOBEI TERRANE ; TRACE-ELEMENT ; SR-ISOTOPE ; RB-SR ; WITWATERSRAND BASIN |
| 资助项目 | National Natural Science Foundation of China[41772080] ; National Key Research and Development Program[2016YFC0600105] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000706724900001 |
| 出版者 | ELSEVIER |
| 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 ; 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 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102991]  |
| 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.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 2.Aarhus Univ, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark 3.Geol Survey Finland, POB 96, FI-02151 Espoo, Finland 4.BGRIMM Technol Grp, State Key Lab Mineral Proc, Beijing 102628, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 6.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Kai,Fan, Hong-Rui,Ulrich, Thomas,et al. Contribution of Precambrian basements to the Mesozoic ore-fluid system: An illustration using the Majiayao gold deposit, Jiaodong, China[J]. ORE GEOLOGY REVIEWS,2021,139:12. |
| APA | Feng, Kai,Fan, Hong-Rui,Ulrich, Thomas,Yang, Kui-Feng,Hu, Fang-Fang,&Liu, Xuan.(2021).Contribution of Precambrian basements to the Mesozoic ore-fluid system: An illustration using the Majiayao gold deposit, Jiaodong, China.ORE GEOLOGY REVIEWS,139,12. |
| MLA | Feng, Kai,et al."Contribution of Precambrian basements to the Mesozoic ore-fluid system: An illustration using the Majiayao gold deposit, Jiaodong, China".ORE GEOLOGY REVIEWS 139(2021):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。