 |
| Titel |
Multi-proxy approach for palaeoclimate reconstruction using a loess-palaeosol sequence from SüttÅ , Hungary |
| VerfasserIn |
Christine Thiel, Paul Königer, Christian Ostertag-Henning, Georg Scheeder, Ágnes Novothny, Erzsébet Horváth, Lara Wacha, Astrid Techmer, Manfred Frechen |
| Konferenz |
EGU General Assembly 2010
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250039231
|
|
|
|
|
|
| Zusammenfassung |
| The loess-palaeosol sequence at SüttÅ , Hungary contains a high-resolution terrestrial archive
of palaeoenvironmental changes. The sequence is about 20 m thick and overlies
travertine which was dated using Uranium-series to 235-314 ka (Sierralta et al., in
press). Imbedded with the loess are two greyish stratified horizons, three brownish
steppe-like soils and a pedocomplex composed of a reddish-brown palaeosol covered
by a chernozem. Detailed dating studies were carried out (Novothny et al, 2009,
Novothny et al., in press) revealing more or less continuous sedimentation from
marine isotope stage (MIS) 6 to MIS 2. High-resolution grain size and magnetic
susceptibility data exist (Novothny et al., in prep.) which allow for palaeoenvironmental
reconstructions.
In addition to those data sets we analysed the carbon and oxygen isotopic composition
of bulk carbonate, carbonate nodules, and organic material in order to get further
insight into palaeoprecipitation and palaeoclimatic conditions. To strengthen the
interpretation based on isotopic data, we examined biomarkers derived from land plants
(long-chain n-alkanes) for both loess and palaeosols to add information on the vegetation
changes.
We will discuss the new results in comparison with the published data sets and highlight
inherent problems of the individual approaches.
Novothny, A., Frechen, M., Horváth, E., Wacha, L., Rolf, C., in prep. High resolution
grain size and magnetic susceptibility record of the last glacial cycles in the SüttÅ loess
section, Hungary. Quaternary International.
Novothny, A., Frechen, M., Horváth, E., Krbetschek, M., Tsukamoto, S., in press.
Infrared stimulated luminescence and radiofluorescence dating of aeolian sediments from
Hungary. Quaternary Geochronology, doi:10.1016/j.quageo.2009.05.002.
Novothny, A., Frechen, M., Horváth, E., Bradák, B., Oches, E. A., McCoy, W.
D., Stevens, T., 2009a. Luminescence and amino acid racemisation chronology
of the loess-paleosol sequence at SüttÅ , Hungary. Quaternary International 198,
62-76.
Sierralta, M., Kele, S., Melcher, F., Hambach, U., Reinders, J., van Geldern, R.,
Frechen, M., in press. Uranium-series dating of travertine from SüttÅ : Implications
for reconstruction of environmental change in Hungary. Quaternary International,
doi:10.1016/j.quaint.2009.04.004. |
|
|
|
|
|
|