In situ observations of tungsten speciation and partitioning behavior during fluid exsolution from granitic melt
文献类型:期刊论文
作者 | Ye Qiu1; Xiaolin Wang1,3; Jianjun Lu1; I-Ming Chou4; Ye Wan4; Rongqing Zhang1,3; Wenlan Zhang1 |
刊名 | Science Bulletin |
出版日期 | 2022-10-29 |
卷号 | 67期号:2022页码:2358–2368 |
ISSN号 | 2095-9273 |
关键词 | Tungsten Species Partition coefficient Fluid exsolution In situ observation |
DOI | 10.1016/j.scib.2022.10.024 |
通讯作者 | Xiaolin Wang |
目次 | 否 |
英文摘要 | Most economically important tungsten (W) deposits are of magmatic-hydrothermal origin. The species and partitioning of W during fluid exsolution, considered to be the controlling factors for the formation of ore deposits, are thus of great significance to investigate. However, this issue has not been well addressed mainly due to the significant difference in reported partition coefficients (e.g., from strongly incompatible to strongly compatible) between fluid and melt (DWfluid/melt). Here, we used an in situ Raman spectroscopic approach to describe the W speciation, and to quantitatively determine the Dfluid/melt of individual and total W species in granite melts and coexisting Na2WO4 solutions at elevated temperatures (T; 700–800 ℃) and pressures (P; 0.35–1.08 GPa). Results show that WO42- and HWO4- are predominant W species, and the fractions of these two species are similar in melt and coexisting fluid. The partitioning behaviors of WO42- and HWO4- are comparable, exhibiting strong enrichment in the fluid.The total DWfluid/melt ranges from 8.6 to 37.1. Specifically, DWfluid/melt decreases with rising T–P, indicating thatshallow exsolution favors enrichment of W in evolved fluids. Furthermore, Rayleigh fractionation modeling based on the obtained DWfluid/melt data was used to describe the fluid exsolution processes. Our resultsstrongly support that fluid exsolution can serve as an important mechanism to generate W-rich oreforming fluids. This study also indicates that in situ approach can be used to further investigate the geochemical behavior of ore-forming elements during the magmatic-hydrothermal transition, especially for rare metals associated with granite and pegmatite. |
WOS关键词 | DIAMOND-ANVIL CELL ; CU-PB-ZN ; SILICATE MELTS ; AQUEOUS FLUIDS ; ALUMINOSILICATE MELTS ; NANLING RANGE ; HIGH-PRESSURE ; SOUTH CHINA ; RAMAN ; WATER |
资助项目 | National Natural Science Foundation of China[41922023] ; National Natural Science Foundation of China[41830428] ; National Natural Science Foundation of China[42173038] ; National Natural Science Foundation of China[41973055] ; National Natural Science Foundation of China[42130109] ; Research Funds for the Frontiers Science Center for Critical Earth Material Cycling (Nanjing University, China) ; Fundamental Research Funds for the Central Universities, China[2022300192] |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000910089600016 |
资助机构 | National Natural Science Foundation of China ; Research Funds for the Frontiers Science Center for Critical Earth Material Cycling (Nanjing University, China) ; Fundamental Research Funds for the Central Universities, China |
源URL | [http://ir.idsse.ac.cn/handle/183446/9983] |
专题 | 深海科学研究部_深海极端环境模拟研究实验室 |
通讯作者 | Xiaolin Wang |
作者单位 | 1.State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University 2.Department of Geology, Northwest University 3.Frontiers Science Center for Critical Earth Material Cycling, Nanjing University 4.Key Laboratory of Experimental Study under Deep-sea Extreme Conditions, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences |
推荐引用方式 GB/T 7714 | Ye Qiu,Xiaolin Wang,Jianjun Lu,et al. In situ observations of tungsten speciation and partitioning behavior during fluid exsolution from granitic melt[J]. Science Bulletin,2022,67(2022):2358–2368. |
APA | Ye Qiu.,Xiaolin Wang.,Jianjun Lu.,I-Ming Chou.,Ye Wan.,...&Wenlan Zhang.(2022).In situ observations of tungsten speciation and partitioning behavior during fluid exsolution from granitic melt.Science Bulletin,67(2022),2358–2368. |
MLA | Ye Qiu,et al."In situ observations of tungsten speciation and partitioning behavior during fluid exsolution from granitic melt".Science Bulletin 67.2022(2022):2358–2368. |
入库方式: OAI收割
来源:深海科学与工程研究所
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