title: Sources and preservation of sedimentary organic matter in the Southern Bohai Sea and the Yellow Sea: evidence from lipid biomarkers.
abstract: The region of Southern Bohai Sea (SBS) and Yellow Sea (YS) represents one of the best examples of large river-dominated ocean margins. The transport and accumulation of sediments played a primary role in distribution of the lipids in the region and could lead to a preferential accumulation of these more refractory land-based lipids. The spatial distribution of total organic carbon (TOC) matched with the lipid distributions over the shelf, and high TOC presented in the central YS, but TOC burial fluxes decreased from 110 ton/km(2)/yr of SBS to 25-32 ton/km(2)/yr of YS. Good correlations were observed between terrestrial n-alkanes and TOC in the sediments of SBS and northern YS, but they were poor for southern YS, meanwhile higher ratios of nC27+nC29+nC31/nC15+nC17+nC19 (12±6) were observed in SBS, and lower in YS (2.2±1.0), suggesting the Yellow River discharge was an important source of terrestrial organic matter to the shelf.
authors.affiliation: Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China.
authors.forename: Tian
authors.initials: T
authors.lastname: Lin
authors.affiliation: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China.
authors.forename: Lifang
authors.initials: L
authors.lastname: Wang
authors.affiliation: Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China. Electronic address: yjchen@yic.ac.cn.
authors.forename: Yingjun
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China.
authors.forename: Chongguo
authors.initials: C
authors.lastname: Tian
authors.affiliation: Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Pan
authors.affiliation: Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China.
authors.forename: Jianhui
authors.initials: J
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Li
mesh_terms: D000473:Alkanes / Q000032:analysis; D015415:Biomarkers / Q000032:analysis*; D002244:Carbon / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data*; D004785:Environmental Pollutants / Q000032:analysis*; D005843:Geography; D019015:Geologic Sediments / Q000737:chemistry*; D008055:Lipids / Q000032:analysis; D009792:Oceans and Seas; D045483:Rivers / Q000737:chemistry*
chemical_list: D000473:Alkanes; D015415:Biomarkers; D004785:Environmental Pollutants; D008055:Lipids; D002244:Carbon
keywords: Lipid biomarker; Organic matter; Sediment; Sources and preservation; Southern Bohai Sea and Yellow Sea