• 责任者：Zhao Meixun (Key Laboratory of Marine Chemistry Theory and Technology ; Ministry of Education ; Ocean University of China ; Qingdao 266100 ; China) ; Gao Wenxian
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2011
• 卷期：31(4)
• 关键词：海洋沉积物 ; marine sediments ; 有机化合物 ; organic compounds ; 黄海 ; Yellow Sea ; 江苏 ; Jiangsu Province
• 页码：p.29-37
• 图表：9 illus., 51 refs.
• 分类号：0200
• 出版序号：688
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

Distinguishing the sources of organic matters in marginal sea sediments is an important aspect of carbon cycle research. The authors report the contents of microbial biomarkers and the BIT index of 31 surface sediment samples from the western Yellow Sea near the old-Yellow River estuary. The results show higher BIT values (>0.15) for samples close to the old-Yellow River, and lower BIT values seaward. The contents of Branched GDGTs range between 5 and 94 ng/g, showing a similar spatial trend with the BIT index. Another biomarker ratio index of terrestrial organic matter, the ATB index (ratio of terrestrial odd-numbered n-alkanes to marine phytoplankton biomarkers), also reveals a similar spatial pattern with higher values near the old-Yellow River estuary and decreasing values seaward.