| Biogeochemical implications of chemosynthetic communities on the evolution of authigenic carbonates | |
Xi, Shichuan1,2,4,5; Zhang, Xin1,2,3,4,5; Luan, Zhendong1,2,4,5; Du, Zengfeng1,2,5; Li, Lianfu1,2,4,5 ; Wang, Bing1,2,5; Lian, Chao1,2,5; Yan, Jun1,2,4,5
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| 2020-08-01 | |
| Source Publication | DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
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| ISSN | 0967-0637 |
| Volume | 162Pages:12 |
| Abstract | Hydrocarbon seepage in cold seeps provides an appropriate environment for chemosynthetic communities to arise and for authigenic carbonates to form. To study the relationships between the chemosynthetic communities and underlying authigenic carbonates, extensive in situ Raman measurements were conducted on the fluids, chemosynthetic communities, and authigenic carbonates found at the Formosa Ridge (Site F) in the South China Sea. Interestingly, the in situ Raman spectra of the authigenic carbonates indicated the highest crystallinity in the fauna-rich area. Scanning electron microscopy and X-ray diffraction analyses of the samples supported the conclusion that the aragonite in the fauna-rich area is more regular than that in the desert area. The in situ Raman spectra suggested that the fluids with relatively low salinity and low sulfate concentrations in the bottom of the chemosynthetic communities can buffer the erosion of underlying authigenic carbonates via the salt effect. In addition, the aragonite content decreased, while the quartz content increased from the fauna-rich area to the desert area (i.e., with increasing distance from the seepage vent). Authigenic aragonite exhibited a negative correlation with terrigenous quartz in the cold seep. The results indicate that changes in chemosynthetic communities have biogeochemical implications on the evolution of authigenic carbonates. Finally, we built a distribution model of the present chemosynthetic communities and underlying authigenic carbonates at Site F, based on systematic in situ Raman measurements and laboratory analyses. This study provides new insights into the evolution of authigenic carbonates based on differences in the spatial distribution of chemosynthetic communities in the seepage system. |
| Keyword | In situ Raman spectra Authigenic carbonates Chemosynthetic communities Salinity Evolution |
| DOI | 10.1016/j.dsr.2020.103305 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Strategic Priority Research Program, CAS[XDA19060402] ; Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology[MGQNLM-TD201904] ; National Natural Science Foundation of China[41822604] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSWDQC004] ; National Key R&D Program of China[2016YFC0302103] ; Open Research Project of National Major Science & Technology Infrastructure (RV KEXUE)[NMSTI-KEXUE2017K01] ; Young Taishan Scholars Program[tsqn201909158] |
| WOS Research Area | Oceanography |
| WOS Subject | Oceanography |
| WOS ID | WOS:000551473200003 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/168057 |
| 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, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China 3.Pilot Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao 266061, Peoples R China 4.Univ Chinese Acad Sci, Beijing 101408, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences; Center for Ocean Mega-Science, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Xi, Shichuan,Zhang, Xin,Luan, Zhendong,et al. Biogeochemical implications of chemosynthetic communities on the evolution of authigenic carbonates[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2020,162:12. |
| APA | Xi, Shichuan.,Zhang, Xin.,Luan, Zhendong.,Du, Zengfeng.,Li, Lianfu.,...&Yan, Jun.(2020).Biogeochemical implications of chemosynthetic communities on the evolution of authigenic carbonates.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,162,12. |
| MLA | Xi, Shichuan,et al."Biogeochemical implications of chemosynthetic communities on the evolution of authigenic carbonates".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 162(2020):12. |
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