| Hydrogen isotope of individual n-alkanes from modern sediments and their application to environments |
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| 作者姓名： | Zhongping LI Liwu LI Li DU |
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| 作者单位： | [1]Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, China [2]Graduate University of the Chinese Academy of Sciences, Beijing 100039, China |
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| 摘 要： | Hydrogen isotopes are commonly fractionated to a much greater extent and as a result display larger variations in δ values, In terms of the hydrogen isotope ratios of individual n-alkanes of 16 samples of modern sediments selected from four different locations in the southern part of Gansu, China, the δD values for most of the n-alkanes varied from -150‰-300‰, Variations in δD also occurred between different ranges of n-alkanes, effects of environmental changes on the hydrogen isotopic compositions of individual n-alkanes have been detected. Besides the δD values of n-alkanes, the δD values of lipids including pristane （Pr）, phytane （Ph） were also examined, by the combination of D/H ratios with molecular fingerprinting, Our results further support the notion that hydrogen isotopes of n-alkanes from modern sediments can act as paleoclimatic and paleoenvironmental proxies and provide invaluable new sources of information in the research of paleoenvironment reconstruction.
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| 关 键 词： | 氢 同位素 沉积物 古环境 地质年代学 |
Hydrogen isotope of individual n-alkanes from modern sediments and their application to environments |
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| Zhongping LI Liwu LI Li DU.Hydrogen isotope of individual n-alkanes from modern sediments and their application to environments[J].Chinese Journal of Geochemistry,2006,25(B08):207-207. |
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| Abstract: | |
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| Keywords: | compound-specific D/H ratio modem sediments n-alkanes paleoenvironment reconstruction |
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