In Situ Quantitative Raman Detection of Dissolved Carbon Dioxide and Sulfate in Deep-Sea High-Temperature Hydrothermal Vent Fluids

doi:10.1029/2018GC007445

	In Situ Quantitative Raman Detection of Dissolved Carbon Dioxide and Sulfate in Deep-Sea High-Temperature Hydrothermal Vent Fluids
	Li, Lianfu 1,2,3,4; Zhang, Xin 1,2,3,4; Luan, Zhendong 1,2,3; Du, Zengfeng 1,2; Xi, Shichuan 1,2,4; Wang, Bing 1,2,4; Cao, Lei 1,2; Lian, Chao 1,2; Yan, Jun 1,2
刊名	GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
	2018-06-01
卷号	19 期号:6 页码:1809-1823
ISSN号	1525-2027
DOI	10.1029/2018GC007445
英文摘要	Carbon dioxide emitted from hydrothermal vents, as an important part of the global carbon cycle, can directly affect hydrothermal ecosystems. However, traditional chemical analysis methods cannot directly measure the concentrations of dissolved CO2 in high-temperature hydrothermal fluids. Although in situ mass spectrometry has been applied to the measurements of deep sea, it cannot be used to detect high-temperature fluids. In this study, an in situ Raman quantitative method for measuring dissolved CO2 suitable for a hydrothermal environment is established. The Raman relative intensity of CO2 displayed a linear relationship with increasing concentration of CO2 under the investigated conditions (up to 300 degrees C and 40 MPa), allowing this in situ measurement method to be applied to most hydrothermal fields worldwide. Moreover, we find that the quantitative calibration curve for SO42- for high-temperature and high-pressure conditions is identical to that of SO42- for room temperature and atmospheric pressure. The concentrations of CO2 in mid-Okinawa Trough hydrothermal fluids determined by in situ Raman measurement are 188.4-532.3 mmol/kg, which are about 3 times higher than those obtained by traditional sampling methods (59198 mmol/kg). However, the concentrations of SO42- calculated from in situ Raman spectra were near zero, indicating that the in situ Raman measurement avoids hydrothermal fluids contaminated with seawater.
资助项目	National Natural Science Foundation of China[41576104] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-DQC004] ; Strategic Priority Research Program, CAS[XDA11040301] ; Strategic Priority Research Program, CAS[XDA11030301] ; Open Research Project of National Major Science & Technology Infrastructure (RV KEXUE)[NMSTI-KEXUE2017K01] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606401] ; National Key R&D Program of China[2016YFC0302103] ; International Partnership for Innovative Team Program from the Chinese Academy of Sciences[20140491526] ; Taishan Scholar Project Funding[tspd20161007]
WOS关键词	BACK-ARC BASIN ; OKINAWA TROUGH ; CO2 SOLUBILITY ; SPECTROSCOPIC MEASUREMENTS ; HYDRATE RIDGE ; DEGREES-C ; OCEAN ; WATER ; GEOCHEMISTRY ; PH
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000445194000007
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program, CAS ; Open Research Project of National Major Science & Technology Infrastructure (RV KEXUE) ; NSFC-Shandong Joint Fund for Marine Science Research Centers ; National Key R&D Program of China ; International Partnership for Innovative Team Program from the Chinese Academy of Sciences ; Taishan Scholar Project Funding
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/11721]
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Zhang, Xin
作者单位	1.Chinese Acad Sci, CAS Key Lab Marine Geol & Environm, Qingdao, Peoples R China 2.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Lianfu,Zhang, Xin,Luan, Zhendong,et al. In Situ Quantitative Raman Detection of Dissolved Carbon Dioxide and Sulfate in Deep-Sea High-Temperature Hydrothermal Vent Fluids[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2018,19(6):1809-1823.
APA	Li, Lianfu.,Zhang, Xin.,Luan, Zhendong.,Du, Zengfeng.,Xi, Shichuan.,...&Yan, Jun.(2018).In Situ Quantitative Raman Detection of Dissolved Carbon Dioxide and Sulfate in Deep-Sea High-Temperature Hydrothermal Vent Fluids.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,19(6),1809-1823.
MLA	Li, Lianfu,et al."In Situ Quantitative Raman Detection of Dissolved Carbon Dioxide and Sulfate in Deep-Sea High-Temperature Hydrothermal Vent Fluids".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 19.6(2018):1809-1823.