Biogeochemical implications of chemosynthetic communities on the evolution of authigenic carbonates

doi:10.1016/j.dsr.2020.103305

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Biogeochemical implications of chemosynthetic communities on the evolution of authigenic carbonates
	Xi, Shichuan 1,2,4,5; Zhang, Xin 1,2,3,4,5; Luan, Zhendong 1,2,4,5; Du, Zengfeng 1,2,5; Li, Lianfu 1,2,4,5; Wang, Bing 1,2,5; Lian, Chao 1,2,5; Yan, Jun 1,2,4,5
刊名	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
	2020-08-01
卷号	162 页码:12
关键词	In situ Raman spectra Authigenic carbonates Chemosynthetic communities Salinity Evolution
ISSN号	0967-0637
DOI	10.1016/j.dsr.2020.103305
英文摘要	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.
资助项目	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研究方向	Oceanography
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000551473200003
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/168056]
专题	海洋研究所_海洋地质与环境重点实验室海洋研究所_深海极端环境与生命过程研究中心
通讯作者	Zhang, Xin
作者单位	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
推荐引用方式 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.