Fluid-induced dissolution-reprecipitation of tungsten minerals in the Hongling deposit, South China
文献类型：期刊论文
| 作者 | Zhang, Dong1,4; Yang, Wu-Bin1,2; Wu, Jian1,3; Niu, He-Cai1,2 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 166页码:11 |
| 关键词 | Hongling tungsten deposit Wolframite Scheelite Dissolution -reprecipitation process The Nanling W-Sn metallogenic belt |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2024.105951 |
| 英文摘要 | Tungsten is a critical metal that is predominantly found in magmatic-hydrothermal W-Sn deposits. However, the behavior and controlling factors of tungsten in highly evolved granitic systems are not yet well-known. In this study, we examined the integrated mineral textures and geochemistry of wolframite and scheelite from the Hongling tungsten deposit in the word-class Nanling W-Sn metallogenic belt, South China. Our results reveal that wolframite and scheelite from the muscovite granite of the highly evolved Reshui granite pluton can be classified into three generations formed through a process of coupled dissolution-reprecipitation. Wolframite with altered relict textures was formed during the early magmatic stage, while the two generations of scheelite (Sch-I and SchII) were formed during the magmatic-hydrothermal transitional stage. The formation of Sch-I, which exhibits a notable positive Eu anomaly, required the participation of external Ca-rich reduced fluids within the magmatic exsolved fluids from the highly evolved peraluminous pluton. The porous Sch-II occurs as marginal overgrowth or fracture-filling textures and exhibits a similar negative Eu anomaly as the dissolved wolframite. These three generations of tungsten minerals exhibit distinguishable REE contents and distribution patterns, with increasing LREE and decreasing HREE trends. The fluctuation of oxygen fugacity and the compositional evolution of tungsten minerals from wolframite through Sch-I to Sch-II indicate the involvement of external Ca-rich reduced fluids within the magmatic exsolved fluids from the highly evolved peraluminous pluton. The coupled dissolution of wolframite and the reprecipitation of scheelite were likely induced by intensive fluid-rock interactions, which are critical for the remobilization and enrichment of tungsten in magmatic-hydrothermal deposits. We inferred that such fluid-induced dissolution-reprecipitation of tungsten minerals provides new insights into the formation of the world-class Nanling W-Sn metallogenic belt in South China. |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001207408400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77100]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Yang, Wu-Bin |
| 作者单位 | 1.Guangzhou Inst Geochem, Chinese Acad Sci, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Geol Bur Nonferrous Met Guangdong Prov, Team 932, Shaoguan 512026, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Dong,Yang, Wu-Bin,Wu, Jian,et al. Fluid-induced dissolution-reprecipitation of tungsten minerals in the Hongling deposit, South China[J]. ORE GEOLOGY REVIEWS,2024,166:11. |
| APA | Zhang, Dong,Yang, Wu-Bin,Wu, Jian,&Niu, He-Cai.(2024).Fluid-induced dissolution-reprecipitation of tungsten minerals in the Hongling deposit, South China.ORE GEOLOGY REVIEWS,166,11. |
| MLA | Zhang, Dong,et al."Fluid-induced dissolution-reprecipitation of tungsten minerals in the Hongling deposit, South China".ORE GEOLOGY REVIEWS 166(2024):11. |
入库方式： OAI收割
来源：广州地球化学研究所
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