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

Xia, Z. H., Xu, B. Q., Mügler, I., Wu, G. J., Gleixner, G., Sachse, D., et al. (2009). Paleoclimatic implications of the hydrogen isotopic composition of terrigenous n-alkanes from Lake Yamzho, southern Tibetan Plateau. Geochemical Journal, 43(4), 275-286.

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Xia, Z. H., Autor
Xu, B. Q., Autor
Mügler, I.1, Autor           
Wu, G. J., Autor
Gleixner, G.1, Autor           
Sachse, D., Autor
Zhu, L. P., Autor
Affiliations:
1Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497773              

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Schlagwörter: N-alkanes Lacustrine sediments Delta d Tibetan plateau Paleoclimate Stable isotopes Delta-d Climate variability Surface sediment Aquatic plants D/h ratios Leaf waxes Water Precipitation
 Zusammenfassung: The hydrogen isotopic composition (delta D) of leaf water used for biosynthesis of n-alkanes can be modified by climate. Therefore, the delta D call be considered Lis potential paleoclimatic proxy to explore. We compared measured delta D Values of alkalies (n-C-25 to n-C-31) extracted front 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 delta D values of the n-alkanes correlated with the mean annual air temperature and significantly correlated with the mean growing season air temperature. Oil the other hand, the delta D values show poor correlations with both rainfall amount and relative humidity. These results indicate that stable isotope composition of n-alkanes Could be ail excellent proxy for paleotemperature reconstruction. [References: 54]

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Sprache(n): eng - English
 Datum: 2009
 Publikationsstatus: Erschienen
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Titel: Geochemical Journal
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: [Nagoya, Japan : 日本地球化学会
Seiten: - Band / Heft: 43 (4) Artikelnummer: - Start- / Endseite: 275 - 286 Identifikator: CoNE: https://pure.mpg.de/cone/journals/resource/954925401557
ISSN: 0016-7002