Direct H2S, HS- and pH Measurements of High-Temperature Hydrothermal Vent Fluids With In Situ Raman Spectroscopy

doi:10.1029/2023GL103195

IOCAS-IR > 海洋地质与环境重点实验室

	Direct H2S, HS- and pH Measurements of High-Temperature Hydrothermal Vent Fluids With In Situ Raman Spectroscopy
	Li, Lianfu1,2,3 ; Li, Zimeng 1,4; Zhong, Richen 4; Du, Zengfeng 1,3; Luan, Zhendong 1,3; Xi, Shichuan1,3 ; Zhang, Xin 1,2,3
	2023-05-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	50 期号:9 页码:9
通讯作者	Zhang, Xin(xzhang@qdio.ac.cn)
摘要	Hydrothermal H2S is an important energy source for hydrothermal ecosystems. However, it is difficult to obtain accurate hydrogen sulfide concentrations in high-temperature hydrothermal fluids because they are highly susceptible to oxidation and compositional variability with mixing. In this study, a new in situ approach for measuring H2S, HS- and pH in hydrothermal fluids was developed and applied to the detections of Okinawa Trough hydrothermal activities. The in situ total H2S concentrations in the Jade and Biwako fluids were determined to be 31.4 and 76.7 mmol/kg, respectively. The in situ measured pH of the Jade fluids was determined to be 6.3, which has exceeded that of a neutral fluid at a specific temperature and pressure, indicating that the pH of Jade fluids is weakly alkaline. The pH transition of hydrothermal fluids from alkaline to acidic may be attributed to the thermal decomposition of organic matter and sulfide precipitation.
关键词	hydrothermal fluids in situ detection in situ pH H2S Raman spectroscopy
DOI	10.1029/2023GL103195
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42106184] ; National Natural Science Foundation of China[92058206] ; National Natural Science Foundation of China[42221005] ; National Natural Science Foundation of China[41822604] ; Strategic Priority Research Program, CAS[XDA22050102] ; Young Taishan Scholars Program[tsqn201909158] ; China Postdoctoral Science Foundation[2020M682245] ; Natural Science Foundation of Shandong Province[ZR2021QD046]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000999862600002
出版者	AMER GEOPHYSICAL UNION
WOS关键词	MOLAL THERMODYNAMIC PROPERTIES ; DEGREES-C ; GEOCHEMICAL CONSTRAINTS ; TRANSPORT-PROPERTIES ; HIGH-PRESSURES ; DISSOLVED H-2 ; TROUGH ; DISSOCIATION ; STABILITY ; CHEMISTRY
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182467
专题	海洋地质与环境重点实验室
通讯作者	Zhang, Xin
作者单位	1.Chinese Acad Sci, Ctr Deep Sea Res, CAS Key Lab Marine Geol & Environm, Inst Oceanol,Ctr Ocean Mega Sci, Qingdao, Peoples R China 2.LaoShan Lab, Lab Marine Geol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Li, Lianfu,Li, Zimeng,Zhong, Richen,et al. Direct H2S, HS- and pH Measurements of High-Temperature Hydrothermal Vent Fluids With In Situ Raman Spectroscopy[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(9):9.
APA	Li, Lianfu.,Li, Zimeng.,Zhong, Richen.,Du, Zengfeng.,Luan, Zhendong.,...&Zhang, Xin.(2023).Direct H2S, HS- and pH Measurements of High-Temperature Hydrothermal Vent Fluids With In Situ Raman Spectroscopy.GEOPHYSICAL RESEARCH LETTERS,50(9),9.
MLA	Li, Lianfu,et al."Direct H2S, HS- and pH Measurements of High-Temperature Hydrothermal Vent Fluids With In Situ Raman Spectroscopy".GEOPHYSICAL RESEARCH LETTERS 50.9(2023):9.