Biogeochemical processes controlling authigenic carbonate formation within the sediment column from the Okinawa Trough
Li, Jiwei1; Peng, Xiaotong1; Bai, Shijie1; Chen, Zhiyan1,2; Van Nostrand, Joy D.3; Peng, Xiaotong(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
2018-02-01
发表期刊GEOCHIMICA ET COSMOCHIMICA ACTA
卷号222页码:363-382
产权排序第1完成单位 ; 第2完成单位 ; 第3完成单位
摘要Authigenic carbonates are one type of conspicuous manifestation in seep environments that can provide long-term archives of past seepage activity and methane cycling in the oceans. Comprehensive investigations of the microbial community functional structure and their roles in the process of carbonate formation are, however, lacking. In this study, the mineralogical, geochemical, and microbial functional composition were examined in seep carbonate deposits collected from the west slope of the northern section of the Okinawa Trough (OT). The aim of this work was to explore the correspondence between the mineralogical phases and microbial metabolism during carbonate deposit formation. The mineralogical analyses indicated that authigenic carbonate minerals (aragonite, magnesium-rich calcite, dolomite, ankerite and siderite) and iron-bearing minerals (limonite, chlorite, and biotite) were present in these carbonate samples. The carbon and oxygen isotopic values of the carbonate samples varied between -51.1% to -4.7% and -4.8% to 3.7%, respectively. A negative linear correlation between carbon and oxygen isotopic compositions was found, indicating a mixture of methane-derived diagenetic (low delta C-13/high O-18) carbonates and detrital origin (high delta C-13/low O-18) carbonates at the OT. GeoChip analyses suggested that various metabolic activities of microorganisms, including methanogenesis, methane oxidation, sulfite oxidation, sulfate reduction, and metal biotransformations, all occurred during the formation process. On the basis of these findings, the following model for the methane cycle and seep carbonate deposit formation in the sediment column at the OT is proposed: (1) in the upper oxidizing zone, aerobic methane oxidation was the main way of methane consumption; (2) in the sulfate methane transition zone, sulfate-dependent AOM (anaerobic oxidation of methane) consumes methane, and authigenic minerals such as aragonite, magnesium-calcite, and sulfide minerals precipitate; (3) in the underlying sulfate depleted zone, the presence of iron-oxides supplied by hydrothermal fluids and terrestrial inputs created thermodynamically favorable conditions for Fe-dependent AOM to consume methane, and dolomite and siderite/ankerite precipitate in this zone. (C) 2017 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Seep Carbonates Carbonate Mineralogy Geochip Microbial Community Functional Structure Okinawa Trough
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.gca.2017.10.029
URL查看原文
收录类别SCI
语种英语
关键词[WOS]SOUTH CHINA SEA ; EASTERN MEDITERRANEAN SEA ; COLD SEEP CARBONATES ; EEL RIVER-BASIN ; NORTHERN CONTINENTAL-SLOPE ; BACK-ARC BASIN ; ANAEROBIC OXIDATION ; HYDROCARBON SEEPS ; METHANE-SEEPS ; MICROBIAL COMMUNITY
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000424972200021
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/5922
专题深海科学研究部_深海地质与地球化学研究室
通讯作者Peng, Xiaotong; Peng, Xiaotong(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Univ Chinese Acad Sci, Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Oklahoma, Inst Environm Genom, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
第一作者单位中国科学院深海科学与工程研究所
通讯作者单位中国科学院深海科学与工程研究所
推荐引用方式
GB/T 7714
Li, Jiwei,Peng, Xiaotong,Bai, Shijie,et al. Biogeochemical processes controlling authigenic carbonate formation within the sediment column from the Okinawa Trough[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2018,222:363-382.
APA Li, Jiwei,Peng, Xiaotong,Bai, Shijie,Chen, Zhiyan,Van Nostrand, Joy D.,&Peng, Xiaotong.(2018).Biogeochemical processes controlling authigenic carbonate formation within the sediment column from the Okinawa Trough.GEOCHIMICA ET COSMOCHIMICA ACTA,222,363-382.
MLA Li, Jiwei,et al."Biogeochemical processes controlling authigenic carbonate formation within the sediment column from the Okinawa Trough".GEOCHIMICA ET COSMOCHIMICA ACTA 222(2018):363-382.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Li, Jiwei]的文章
[Peng, Xiaotong]的文章
[Bai, Shijie]的文章
百度学术
百度学术中相似的文章
[Li, Jiwei]的文章
[Peng, Xiaotong]的文章
[Bai, Shijie]的文章
必应学术
必应学术中相似的文章
[Li, Jiwei]的文章
[Peng, Xiaotong]的文章
[Bai, Shijie]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。