Quantification, morphology and source of humic acid, kerogen and black carbon in offshore marine sediments from Xiamen Gulf, China

CORC > 厦门大学 > 海洋环境－已发表论文

	Quantification, morphology and source of humic acid, kerogen and black carbon in offshore marine sediments from Xiamen Gulf, China
	Chen, Yanting ; Zhao, Jinping ; Yin, Liqian ; Chen, Jinsheng ; Yuan, Dongxing ; Yuan DX(袁东星)
刊名	http://dx.doi.org/10.1016/S1001-0742(12)60043-6
	2013
关键词	POLYCYCLIC AROMATIC-HYDROCARBONS SOIL ORGANIC-MATTER BOTRYOCOCCUS-BRAUNII STABLE-ISOTOPE SEA ESTUARY FEATURES SORPTION
英文摘要	National Natural Science Foundation of China [41005082]; State Key Laboratory of Marine Environmental Science (Xiamen University) [MELRS1017]; Three types of macromolecular organic matters (MOMs), i.e. humic acid (HA), kerogen+black carbon (KB), and black carbon (BC) were extracted from marine sediments of Xiamen Gulf, southeast of China. The chemical composition, morphological property and source of the three extractions were characterized by elemental analyzer/isotope ratio mass spectrometry (EA/IRMS) and scanning electron microscope (SEM). The results showed that KB was the predominant fraction in MOMs, which accounted for 61.79%-89.15% of the total organic content (TOC), while HA consisted less than 5%. The relative high contents of kerogen and BC, and low contents of HA in the samples indicated that anthropogenic input might be the major source of organic matter in marine sediments near the industrial regions. The characterization of SEM, not only revealed morphological properties of the three fractions, but also allowed a better understanding of the source of MOMs. The delta C-13 values of the three fractions suggested that materials from terrestrial C-3 plants were predominant. Furthermore, the anthropogenic activities, such as the discharge of sewage, coal and biomass combustion from industry nearby and agricultural practices within drainage basin of the Jiulong River, were remarkably contributed to the variations in delta C-13 values of MOMs in the offshore marine sediments.
语种	英语
出版者	SCIENCE PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87888]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Chen, Yanting,Zhao, Jinping,Yin, Liqian,et al. Quantification, morphology and source of humic acid, kerogen and black carbon in offshore marine sediments from Xiamen Gulf, China[J]. http://dx.doi.org/10.1016/S1001-0742(12)60043-6,2013.
APA	Chen, Yanting,Zhao, Jinping,Yin, Liqian,Chen, Jinsheng,Yuan, Dongxing,&袁东星.(2013).Quantification, morphology and source of humic acid, kerogen and black carbon in offshore marine sediments from Xiamen Gulf, China.http://dx.doi.org/10.1016/S1001-0742(12)60043-6.
MLA	Chen, Yanting,et al."Quantification, morphology and source of humic acid, kerogen and black carbon in offshore marine sediments from Xiamen Gulf, China".http://dx.doi.org/10.1016/S1001-0742(12)60043-6 (2013).