Discrimination of two diverse fluid evolutions from the Nanyangtian scheelite deposit, southeastern Yunnan: Evidences from fluid inclusions and mineral geochemistry
文献类型：期刊论文
| 作者 | Niu, Haobin4; Sun, Saijun2,3; Zhang, Binhui4; Chen, Minhua4; Zhang, Bin4; Lu, Shenglin4; Zhang, Junjie3; Sun, Weidong2,3 ; Cong, Yanan1
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| 刊名 | ORE GEOLOGY REVIEWS
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| 出版日期 | 2024-11-01 |
| 卷号 | 174页码:14 |
| 关键词 | Nanyangtian scheelite deposit W-skarn Feldspar-quartz veins Fluids compositions Mineral chemistry |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2024.106291 |
| 通讯作者 | Sun, Saijun(sunsaijun06@163.com) |
| 英文摘要 | The Nanyangtian scheelite deposit is located in the Nanwenhe-Song Chay dome (NSCD), southeastern Yunnan. This deposit has undergone four metallogenic stages and is characterized by several kilometers of bedded scheelite-bearing skarn (NYT-II stage), feldspar-bearing quartz veins (NYT-III stage), and sulfides (NYT-IV stage) in the Neoproterozoic schist and gneiss, all of which exhibit similar fold deformations. Throughout the stages, Th and salinity of fluids gradually decrease, weakly and positively correlating, representing a slow cooling process. NYT-I fluids (F-, H2O-rich and high T, p), as indicated by the plagioclase within feldspar-bearing quartz veins, may have directly evolved from a highly fractional residual melt or a salt-rich aqueous melt, signifying the magmatic-hydrothermal transition. From NYT-II to NYT-III fluids, a wider variation of delta O-18(H2O) (-2.4 similar to 5.1 parts per thousand) to a narrow range of delta O-18(H2O) (2.8 similar to 5.1 parts per thousand), and a narrow delta S-34 range (5.18 parts per thousand similar to 8.62 parts per thousand) also indicates that fluids may evolve from the relatively oxidized granitic magma. Furthermore, NYT-I fluids could extend throughout the entire fluid evolution, culminating in two diverse paths: one is a much purer magmatic water towards the NYT-III and NYT-IV fluids, and the other is a more meteoric water-dominated towards the NYT-II fluids. A lower water/rock ratio (W/R) existed in the NYT-II stage, leading to the formation of moderately oxidized Tungsten (W)-skarns and scheelites through the NYT-I salt-rich aqueous melts or their reactions with wall rocks in a stable environment. W/R ratios increased in the NYT-III stage, resulting in the formation of NYTIII feldspar-bearing quartz veins with CO2 generation and alkalinity enhancement. As oxidation diminished, fluids gradually evolved into the NYT-IV fluids, forming sulfides. |
| WOS关键词 | OXYGEN-ISOTOPE FRACTIONATION ; MICROTHERMOMETRIC DATA ; SKARN MINERALIZATION ; SILICATE MELTS ; CHEMISTRY ; COMPLEX ; TUNGSTEN ; CHINA ; CONSTRAINTS ; SPECIATION |
| 资助项目 | China Geological Survey[DD20240071] ; China Geological Survey[DD20242001] ; China Geological Survey[DD20230031] ; China Geological Survey[DD20190053] ; National Natural Science Foundation of China[42373049] ; National Key R & D Program of China[2023YFF0807103] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001344649400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/199363]  |
| 专题 | 海洋研究所_深海极端环境与生命过程研究中心 |
| 通讯作者 | Sun, Saijun |
| 作者单位 | 1.Inner Mongolia Minerals Expt Res Inst, Hohhot 010000, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Geol, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 4.China Geol Survey, Geosci Innovat Ctr Southwest China, Chengdu Ctr, Chengdu 610081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Haobin,Sun, Saijun,Zhang, Binhui,et al. Discrimination of two diverse fluid evolutions from the Nanyangtian scheelite deposit, southeastern Yunnan: Evidences from fluid inclusions and mineral geochemistry[J]. ORE GEOLOGY REVIEWS,2024,174:14. |
| APA | Niu, Haobin.,Sun, Saijun.,Zhang, Binhui.,Chen, Minhua.,Zhang, Bin.,...&Cong, Yanan.(2024).Discrimination of two diverse fluid evolutions from the Nanyangtian scheelite deposit, southeastern Yunnan: Evidences from fluid inclusions and mineral geochemistry.ORE GEOLOGY REVIEWS,174,14. |
| MLA | Niu, Haobin,et al."Discrimination of two diverse fluid evolutions from the Nanyangtian scheelite deposit, southeastern Yunnan: Evidences from fluid inclusions and mineral geochemistry".ORE GEOLOGY REVIEWS 174(2024):14. |
入库方式： OAI收割
来源：海洋研究所
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