Palaeoclimate records in compound-specific δD values of a lipid biomarker in ombrotrophic peat

Xie, Shucheng; Nott, CJ; Avsejs, LA; Volders, Fdm; Maddy, Darrel; Chambers, F. M.; Gledhill, AR; Carter, JF; Evershed, Richard P.

doi:10.1016/s0146-6380(00)00116-9

Cited by 147 publications

(67 citation statements)

References 23 publications

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“…These compounds then emerged as potential paleoclimatic and paleohydrological proxies (Andersen et al, 2001;Sauer et al, 2001;Yang and Huang, 2003;Huang et al, 2004;Sachse et al, 2004;Liu and Huang, 2005;Jacob et al, 2007;Makou et al, 2007;Xia et al, 2008;Xie et al, 2000Xie et al, , 2004.…”

Section: Introductionmentioning

confidence: 99%

Retraction: Paleoclimatic implications of the hydrogen isotopic composition of terrigenous n-alkanes from Lake Yamzho, southern Tibetan Plateau

Zhonghuan

Mügler

et al. 2009

Geochem. J.

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The hydrogen isotopic composition (δD) of leaf water used for biosynthesis of n-alkanes can be modified by climate. Therefore, the δD can be considered as potential paleoclimatic proxy to explore. We compared measured δD values of alkanes (n-C 25 to n-C 31 ) extracted from a short sediment profile spanning the past 50 years with a 7-year resolution from Lake Yamzho, southern Tibetan Plateau. Climatic control was reconstructed using meteorological records of the nearby Langkazi and Lhasa weather stations. We found that the δD values of the n-alkanes correlated with the mean annual air temperature and significantly correlated with the mean growing season air temperature. On the other hand, the δD values show poor correlations with both rainfall amount and relative humidity. These results indicate that stable isotope composition of n-alkanes could be an excellent proxy for paleotemperature reconstruction.

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Section: Introductionmentioning

confidence: 99%

Retraction: Paleoclimatic implications of the hydrogen isotopic composition of terrigenous n-alkanes from Lake Yamzho, southern Tibetan Plateau

Zhonghuan

Mügler

et al. 2009

Geochem. J.

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“…With the development of compound-specific hydrogen isotope analysis using gas chromatography/thermal conversion/isotope ratio mass spectrometry (GC/TC/ IRMS) in recent years (Burgoyne and Hayes, 1998;Hilkert et al, 1999), compound-specific hydrogen isotope ratios of organic compounds are emerging as a new paleoclimatic and paleohydrological proxy (Andersen et al, 2001;Huang et al, 2004;Liu and Huang, 2005;Sachse et al, 2004;Sauer et al, 2001;Xie et al, 2000;Yang and Huang, 2003). Current knowledge suggests that the fractionation of H isotopes in biosynthesis is constant and mostly controlled by the biochemical pathway used (Sessions et al, 1999), therefore δD ratios of biomarkers have the potential to record changes in the isotopic composition of the H source.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen isotope ratios of terrigenous n-alkanes in lacustrine surface sediment of the Tibetan Plateau record the precipitation signal

Zhonghuan

Mügler

et al. 2008

Geochem. J.

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Hydrogen isotope ratios were measured on terrigenous alkanes (n-C 25 to n-C 31 ) extracted from recent lake surface sediments from the climatically and environmentally distinct basins Qiangyong Glacier Lake, Yamzho Lake, Nam Co Lake, Keluke Lake and Xiao Qaidam Lake along a S-N transect in the Tibetan Plateau to explore the climatic implication of these biomarkers. δD values of these n-alkanes are compared to that of precipitation spanning a wide range from -167‰ to -51‰ and clearly correlate with δD values of meteoric water, indicating that terrigenous alkanes record the precipitation signal. The fractionation between precipitation and n-C 25 , n-C 27 alkanes cover a range from -45‰ to -70‰ whilst that between precipitation and n-C 29 , n-C 31 alkanes varies from -70‰ to -95‰, both being fairly constant along the S-N Tibetan transect with the mean at -57‰ and -82‰ respectively. By comparison with the fractionation of -130‰ along the S-N European transect, it implies that the hydrogen isotopic fractionation between meteoric water and terrestrial n-alkanes along the Tibetan transect represent distinct character.

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“…如果这个假设成立, 那么正构烷烃单体δD值就可以用来重建源水的同位素组成, 进而反演古气候的变化. 对英格兰北部一个泥炭柱样进行分析, 发现泥炭藓来源的正构烷烃n-C 23 的δD值与气温记录具有很好的相关性, n-C 23 的δD值大小反映了受蒸发作用影响的沼泽水的同位素组成 [1] . 在对来自苏格兰和澳大利亚的铜铀云母矿中的Botryococcus braunii 藻来源的脂肪烃的研究中, 发现其中正构烷烃的δD值明显反映了每个铜铀云母矿沉积的古气候, 记录了对应地质历史时期大气水的氢同位素组成 [14] .…”

Section: J Lake Sci(湖泊科学) 2008 20(6) 696unclassified

“…生物标志物氢同位素比值正逐渐成为新古气候和古水文代用指标 [1][2][3][4][5][6][7] , 目前研究发现这类有机化合物在被生物合成的过程中氢同位素分馏稳定且主要受生化路径控制 [8] , 因此生物标志物氢同位素比值具有记录氢源同位素组成的潜能. 正构烷烃是地质体中含量最为丰富的脂类化合物之一, 性质稳定, 容易提取分离, 所有氢原子都与碳原子相连, 在低温下不会与介质中氢原子发生交换 [9] , 而且通过正构烷烃分子特征能够区分不同生物来源 [10][11][12][13] .…”

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Climatic implication of hydrogen isotope ratios of terrigenous n-alkanes in lacustrine surface sediment of the Tibetan Plateau

Zhong-huan

Xu²,

Mvgler

et al. 2008

Journal of Lake Sciences

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δD values of terrigenous n-alkanes (n-C 25 , n-C 27 , n-C 29 and n-C 31 ) extracted from recent lake surface sediments of Lake Qiangyong Glacier, Lake Kongmu Co, Lake Nam Co, Lake Keluke and Lake Xiao Qaidam along the S-N transect of Tibetan Plateau are compared to those of precipitation spanning a wide range from -167‰ to -51‰ and clearly correlate with δD values of meteoric water during the growth, indicating that terrigenous n-alkanes record the precipitation signal during the growth. The isotopic fractionation between precipitation and alkanes of n-C 25 and n-C 27 cover a range from -45‰ to -70‰ whilst that between precipitation and alkanes of n-C 29 and n-C 31 vary from -70‰ to -95‰, both being fairly constant along the S-N Tibetan transect with the mean at -57‰ and -82‰, respectively. By comparison with the apparent isotope fractionation of -130‰ along the S-N European transect, it implies that the apparent hydrogen isotopic fractionation between meteoric water and terrestrial n-alkanes along the Tibetan transect is much smaller.

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Palaeoclimate records in compound-specific δD values of a lipid biomarker in ombrotrophic peat

Cited by 147 publications

References 23 publications

Retraction: Paleoclimatic implications of the hydrogen isotopic composition of terrigenous n-alkanes from Lake Yamzho, southern Tibetan Plateau

Retraction: Paleoclimatic implications of the hydrogen isotopic composition of terrigenous n-alkanes from Lake Yamzho, southern Tibetan Plateau

Hydrogen isotope ratios of terrigenous n-alkanes in lacustrine surface sediment of the Tibetan Plateau record the precipitation signal

Climatic implication of hydrogen isotope ratios of terrigenous n-alkanes in lacustrine surface sediment of the Tibetan Plateau

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