de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Impressum Kontakt Einloggen
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

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

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons62493

Mügler,  I.
Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons62384

Gleixner,  G.
Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons62536

Sachse,  D.
Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. E.-D. Schulze, Max Planck Institute for Biogeochemistry, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Xia, Z. H., Xu, B. Q., Mügler, I., Wu, G. J., Gleixner, G., Sachse, D., et al. (2008). Hydrogen isotope ratios of terrigenous n-alkanes in lacustrine surface sediment of the Tibetan Plateau record the precipitation signal. Geochemical Journal, 42(4), 331-338.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000E-D7A6-0
Zusammenfassung
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. delta D values of these n-alkanes are compared to that of precipitation spanning a wide range from -167 parts per thousand to -51 parts per thousand and clearly correlate with delta D 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 parts per thousand to -70 parts per thousand whilst that between precipitation and n-C-29, n-C-31, alkanes varies from -70 parts per thousand to -95 parts per thousand, both being fairly constant along the S-N Tibetan transect with the mean at -57 parts per thousand and -82 parts per thousand respectively. By comparison with the fractionation of -130 parts per thousand 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. [References: 45]