| 南海中部表层沉积物中脂肪酸的组成、分布及来源 |
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| 引用本文： | 林卫东,周永章,沈平.南海中部表层沉积物中脂肪酸的组成、分布及来源[J].广西师范学院学报(自然科学版),2004,21(4):11-15. |
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| 作者姓名： | 林卫东 周永章 沈平 |
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| 作者单位： | 中山大学,地球环境与地球资源研究中心,广东,广州,510725;中国科学院,兰州地质研究所,甘肃,兰州,730000 |
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| 摘 要： | 对5个采自南海中部地区的表层海洋近代沉积物样品的脂肪酸的组成进行了测试．测试结果表明，南海中部近代沉积物中脂肪酸由正构饱和脂肪酸、一元不饱和脂肪酸、多元不饱和脂肪酸及带支链的异构、反异构脂肪酸组成．较高含量的C12：C20短链脂肪酸和较丰富的一元不饱和脂肪酸以及其它细菌标志脂肪酸的出现表明，细菌等海洋微生物是脂肪酸的主要贡献者，海洋浮游生物对南海近代沉积物脂肪酸的贡献仅占次要位置．
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| 关 键 词： | 南海 表层沉积物 脂肪酸 组成 来源 |
| 文章编号： | 1002-8743(2004)04-0011-05 |
| 修稿时间： | 2004年5月17日 |
Composition,distribution and Source of Fatty Acids in Marine Surface Sediments from the Middle of South China Sea |
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| LIN Wei-dong,ZHOU Yong-zhang,SHEN Ping.Composition,distribution and Source of Fatty Acids in Marine Surface Sediments from the Middle of South China Sea[J].Journal of Guangxi Teachers Education University:Natural Science Edition,2004,21(4):11-15. |
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| Authors: | LIN Wei-dong ZHOU Yong-zhang SHEN Ping |
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| Institution: | LIN Wei-dong~1,ZHOU Yong-zhang~1,SHEN Ping~2 |
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| Abstract: | 5 samples of fatty acids in marine surface sediment from South China Sea were analyzed for their geochemical composition. The results show that the fatty acids in surface sediment from South China Sea consisted of normal saturated fatty acids, mono-unsaturated fatty acids, polyunsaturated fatty acids, iso- and anteiso-branched fatty acids. The relatively high abundant short chain fatty acids (C_(12):C_(20)) and mono-unsaturated fatty acids and other bacteria biomarker acids indicate that marine microbe might be the predominant source of the fatty acids in South China Sea surface sediment while fatty acids from marine planktonic organisms are rarely low. |
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| Keywords: | South China Sea surface sediment fatty acids composition sources |
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