长江口沉积物中正构烷烃的分布特征及其环境指示意义

被引:14
作者
吕晓霞
翟世奎
机构
[1] 中国海洋大学海洋地球科学学院
关键词
正构烷烃; 分布; 环境指示意义; 沉积物; 长江口;
D O I
10.13671/j.hjkxxb.2008.06.029
中图分类号
X55 [海洋污染及其防治];
学科分类号
摘要
对长江口4个柱状岩芯沉积物中的正构烷烃进行了分析研究.结果显示,这4个岩芯中的正构烷烃分别来源于不同的物源输入.来源于不同种类陆源输入的正构烷烃的比值反映了长江流域呈现出寒、暖期交替出现的气候条件,且主要以暖湿气候为主.长江口4个岩芯沉积物中的长链正构烷烃没有经过明显的成岩演化,而短链正构烷烃较低的CPI值则更多的归因于其主要来源于化石燃料的不完全燃烧产物.
引用
收藏
页码:1221 / 1226
页数:6
相关论文
共 21 条
[11]  
Evaluation of lipid biomarkers as indicators of changes in organic matter delivery to sediments from Lake Planina, a remote mountain lake in NW Slovenia[J] . Gregor Muri,Stuart G. Wakeham,Tamara K. Pease,Jadran Faganeli.Organic Geochemistry . 2004 (10)
[12]  
Investigation of natural and anthropogenic hydrocarbon inputs in sediments using geochemical markers. I. Santos, SP––Brazil[J] . Marine Pollution Bulletin . 2004 (9)
[13]   Biomarker patterns in a time-resolved holocene/terminal Pleistocene sedimentary sequence from the Guadiana river estuarine area (SW Portugal/Spain border) [J].
González-Vila, FJ ;
Polvillo, O ;
Boski, T ;
Moura, D ;
de Andrés, JR .
ORGANIC GEOCHEMISTRY, 2003, 34 (12) :1601-1613
[14]   Natural supply of oil-derived hydrocarbons into marine sediments along the California continental margin during the late Quaternary [J].
Mangelsdorf, K ;
Rullkötter, J .
ORGANIC GEOCHEMISTRY, 2003, 34 (08) :1145-1159
[15]   Significance of high C/N ratios in organic-carbon-rich Neogene sediments under the Benguela Current upwelling system [J].
Twichell, SC ;
Meyers, PA ;
Diester-Haass, L .
ORGANIC GEOCHEMISTRY, 2002, 33 (07) :715-722
[16]  
Organic geochemistry of recent marine sediments from the Nansha Sea, China[J] . Yi Duan.Organic Geochemistry . 2000 (2)
[17]   Isotopic compositions of lipid biomarker compounds in estuarine plants and surface sediments [J].
Canuel, EA ;
Freeman, KH ;
Wakeham, SG .
LIMNOLOGY AND OCEANOGRAPHY, 1997, 42 (07) :1570-1583
[18]   THE BIOGEOCHEMISTRY OF LIPIDS IN RIVERS OF THE ORINOCO BASIN [J].
JAFFE, R ;
WOLFF, GA ;
CABRERA, AC ;
CHITTY, HC .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1995, 59 (21) :4507-4522
[19]  
Sedimentary organic matter preservation: an assessment and speculative synthesis[J] . John I. Hedges,Richard G. Keil.Marine Chemistry . 1995 (2)
[20]  
Microbial lipids of an intertidal sediment.I : Fatty acids and hydrocarbons .2 Volkman J K,Hohns R B,Gillan F T et al. Geochim. Cosmochim. Acta . 1980