| In situ Raman Quantitative Detection of the Cold Seep Vents and Fluids in the Chemosynthetic Communities in the South China Sea | |
Du, Zengfeng1,2; Zhang, Xin1,2,3; Luan, Zhendong1,2; Wang, Minxiao1,2; Xi, Shichuan1,3; Li, Lianfu1,3; Wang, Bing1,3; Cao, Lei1 ; Lian, Chao1; Li, Chaolun1,2,3; Yan, Jun1
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| 2018-07-01 | |
| Source Publication | GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
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| ISSN | 1525-2027 |
| Volume | 19Issue:7Pages:2049-2061 |
| Corresponding Author | Zhang, Xin(xzhang@qdio.ac.cn) |
| Abstract | Based on the previously developed deep-sea hybrid Raman insertion probe for cold seeps, the in situ detection of a cold seep vent and geochemistry analysis of fluids in chemosynthetic communities were conducted at the Formosa Ridge in the northern South China Sea. Three different methods were used to measure the components of the fluids erupting from the cold seep vent. The in situ Raman spectra of the cold seep fluids indicated the presence of gaseous CH4, C3H8, and H2S. The results indicate that the gases at this site are of biogenic origin; however, the presence of C3H8 suggests that thermogenic methane should not be excluded. The conclusion is also supported by the results of gas chromatography and stable carbon isotope analysis. More significantly, we found that the concentration of SO42- decreases with increasing depth, while the concentrations of CH4 and S-8 increase in fluids in chemosynthetic communities, but without H2S. This finding indicates that the methane is oxidized by sulfate and that elemental sulfur is formed. This process usually occurs in marine sediments as the anaerobic oxidation of methane. Overall, the findings in this work provide a new insight into the geochemical analysis of cold seep fluids and in situ evidence of the oxidation of methane in the chemosynthetic communities near cold seeps. |
| Keyword | Raman spectroscopy in situ detection cold seep fluids chemosynthetic communities |
| DOI | 10.1029/2018GC007496 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 the 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] ; Taishan Scholar Project Funding[tspd20161007] |
| WOS Research Area | Geochemistry & Geophysics |
| WOS Subject | Geochemistry & Geophysics |
| WOS ID | WOS:000443389300009 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/160022 |
| Collection | 海洋地质与环境重点实验室 深海极端环境与生命过程研究中心 |
| Corresponding Author | Zhang, Xin |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, CAS Key Lab Marine Geol & Environm, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| First Author Affilication | Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res |
| Corresponding Author Affilication | Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res |
| Recommended Citation GB/T 7714 | Du, Zengfeng,Zhang, Xin,Luan, Zhendong,et al. In situ Raman Quantitative Detection of the Cold Seep Vents and Fluids in the Chemosynthetic Communities in the South China Sea[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2018,19(7):2049-2061. |
| APA | Du, Zengfeng.,Zhang, Xin.,Luan, Zhendong.,Wang, Minxiao.,Xi, Shichuan.,...&Yan, Jun.(2018).In situ Raman Quantitative Detection of the Cold Seep Vents and Fluids in the Chemosynthetic Communities in the South China Sea.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,19(7),2049-2061. |
| MLA | Du, Zengfeng,et al."In situ Raman Quantitative Detection of the Cold Seep Vents and Fluids in the Chemosynthetic Communities in the South China Sea".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 19.7(2018):2049-2061. |
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| In situ Raman Quanti（3553KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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