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Boron-rich ore-forming fluids in hydrothermal W-Sn deposits from South China: Insights from in situ Raman spectroscopic characterization of fluid inclusions

文献类型：期刊论文

作者Qiu, Ye1,2; Zhang, Rongqing1,2; Chou, I-Ming3; Wang, Xiaolin1,2; Hu, Wenxuan1,2; Zhang, Wenlan1,2; Lu, Jianjun1,2; Li, Guanglai4; Li, Zhen5
刊名ORE GEOLOGY REVIEWS
出版日期2021-05-01
卷号132页码:16
ISSN号0169-1368
关键词Boron-rich fluid inclusions In situ Raman spectroscopy Quantitative analysis Chloride effect Hydrothermal W-Sn deposit South China
DOI10.1016/j.oregeorev.2021.104048
英文摘要Boron (B) is an important volatile component in many ore-forming fluids of hydrothermal deposits related to granites. The Maoping and Piaotang W-Sn deposits are typical magmatic-hydrothermal deposits located in South China. In this study, boron (i.e., H3BO3)-rich fluid inclusions are discovered in the above two deposits through in situ Raman spectrosocpic analyses. Based on careful experimental calibrations, we calculated the ratio of relative molar scattering factors between water and H3BO3 (JH2O/JH3BO3). In addition, the relationship between salinity and JH2O/JH3BO3 was constructed. Then, Raman spectroscopic quantification of the NaCl-H3BO3-H2O solutions was proposed. Because corrections for the response function of the spectrometer and the influences of the wavenumber and temperature on the spectral intensity were applied, our Raman spectroscopic quantifications allow comparison across different laboratories. The salinity [mNaCl in m (mol/kg H2O)] and molality of B (mH(3)BO(3)) for topaz-hosted fluid inclusions at the Maoping W-Sn deposit were determined to be 0.29-1.48 m and 0.06-0.46 m, respectively. A large quartz crystal was collected from a wolframite-bearing quartz vein of the Piaotang W-Sn deposit. The H3BO3 concentration of fluid inclusions in this crystal was determined using Raman spectroscopy. From the core to the rim, mH(3)BO(3) and mNaCl do not show monotonic changes; mH(3)BO(3) fluctuates between 0.11 and 0.33 m, while mNaCl ranges from 0.11 to 1.41 m. Further thermodynamic calculations revealed moderately acidic ore-forming fluids with pH ranging from 4.9 to 5.1 at 23 degrees C. The fluctuation of mH(3)BO(3) during the growth of a single quartz crystal indicates the episodic replenishment of magmatic-hydrothermal fluids. In addition, microthermometric measurement can result in non-negligible uncertainties in the fluid compostion determination for such complex NaCl-H2O-H3BO3-CO2-N-2-CH4 fluid system. Alternatively, Raman spectroscopy can provide non-destructive and fast quantification of such fluid inclusions based on careful experimental calibrations.
WOS关键词AQUEOUS FLUIDS ; ICP-MS ; TUNGSTEN DEPOSIT ; MELT INCLUSIONS ; TIN DEPOSITS ; GRANITE ; PEGMATITE ; TEMPERATURE ; PRESSURE ; JIANGXI
资助项目National Natural Science Foundation of China[41922023] ; National Natural Science Foundation of China[41830428] ; Fundamental Research Funds for the Central Universities[020614380056] ; Fundamental Research Funds for the Central Universities[020614380078]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:000685988300002
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
源URL[http://ir.idsse.ac.cn/handle/183446/8777]  
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Wang, Xiaolin
作者单位1.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210023, Jiangsu, Peoples R China
2.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China
4.East China Inst Technol, State Key Lab Breeding Base Nucl Resources & Envi, Nanchang 330013, Jiangxi, Peoples R China
5.Curtin Univ, Fac Sci & Engn, John Laeter Ctr, GPO Box U1987, Perth, WA 6485, Australia
推荐引用方式
GB/T 7714		 Qiu, Ye,Zhang, Rongqing,Chou, I-Ming,et al. Boron-rich ore-forming fluids in hydrothermal W-Sn deposits from South China: Insights from in situ Raman spectroscopic characterization of fluid inclusions[J]. ORE GEOLOGY REVIEWS,2021,132:16.
APA Qiu, Ye.,Zhang, Rongqing.,Chou, I-Ming.,Wang, Xiaolin.,Hu, Wenxuan.,...&Li, Zhen.(2021).Boron-rich ore-forming fluids in hydrothermal W-Sn deposits from South China: Insights from in situ Raman spectroscopic characterization of fluid inclusions.ORE GEOLOGY REVIEWS,132,16.
MLA Qiu, Ye,et al."Boron-rich ore-forming fluids in hydrothermal W-Sn deposits from South China: Insights from in situ Raman spectroscopic characterization of fluid inclusions".ORE GEOLOGY REVIEWS 132(2021):16.

入库方式： OAI收割

来源：深海科学与工程研究所

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