Nanoparticle attachment promotes nugget effect of Au-rich metallic melts in hydrothermal ore deposits
文献类型：期刊论文
| 作者 | Fan, Gao-Hua4,5; Li, Jian-Wei4,5; Wu, Ya-Fei4; Hu, Si-Yu3; Deng, Xiao-Dong5; Zhou, Hao-Yang1; Li, Zhan-Ke4; Liu, Yan2 |
| 刊名 | CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 179期号:12页码:12 |
| 关键词 | Gold accumulation Bismuth melts Three-step growth Oriented attachment |
| ISSN号 | 0010-7999 |
| DOI | 10.1007/s00410-024-02184-3 |
| 英文摘要 | The role of bismuth melts in scavenging Au from hydrothermal fluids has been increasingly recognized in the last decade, but the question of how the Au extracted by such melts transforms into nuggets to form high-grade ores remains obscure. Here, we have characterized the nanostructure of gold nanoparticles (AuNPs) in Bi-rich gold ores that precipitated from Bi-Au melts and propose a novel model to explain the genesis of gold nuggets. This model comprises three consecutive processes of Au crystallization in these melts into coarse grains: the initial formation of atomic clusters equivalent to Au nucleation, the coalescence of these clusters into low-crystalline AuNPs followed by their transformation into well-structured ones, and finally the preferential attachment of these NPs along the {111} lattice plane. This atomic crystallization pathway bridges the gap between Au scavenging by metallic melts and nugget formation, thus making the picture of the formation of high-grade gold ores in the context of melt-fluid interaction more complete. |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:001357783400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82040]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Li, Jian-Wei |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Yangtze Univ, Hubei Key Lab Petr Geochem & Environm, Wuhan 430100, Peoples R China 3.CSIRO Mineral Resources, Kensington, WA 6151, Australia 4.China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China 5.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Gao-Hua,Li, Jian-Wei,Wu, Ya-Fei,et al. Nanoparticle attachment promotes nugget effect of Au-rich metallic melts in hydrothermal ore deposits[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,2024,179(12):12. |
| APA | Fan, Gao-Hua.,Li, Jian-Wei.,Wu, Ya-Fei.,Hu, Si-Yu.,Deng, Xiao-Dong.,...&Liu, Yan.(2024).Nanoparticle attachment promotes nugget effect of Au-rich metallic melts in hydrothermal ore deposits.CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,179(12),12. |
| MLA | Fan, Gao-Hua,et al."Nanoparticle attachment promotes nugget effect of Au-rich metallic melts in hydrothermal ore deposits".CONTRIBUTIONS TO MINERALOGY AND PETROLOGY 179.12(2024):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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