 |
| Titel |
OSL Dating of Maar Lake Sediments (Eifel/Germany) |
| VerfasserIn |
E. D. Schmidt, F. Sirocko, M. Frechen, S. Tsukamoto |
| Konferenz |
EGU General Assembly 2009
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250020081
|
|
|
|
|
|
| Zusammenfassung |
| OSL Dating of Maar Lake Sediments (Eifel/Germany)
Esther D. Schmidt1, Frank Sirocko2, Manfred Frechen1 and Sumiko Tsukamoto1
1Leibniz Institute for Applied Geosciences, Department for Geochronology and Isotope Hydrology Hannover/ Germany – esther.schmidt@gga-hannover.de
2University of Mainz/Germany, Institute for Geoscience
Keywords: Maar lake sediments, luminescence dating, Eifel/Germany.
Sediment cores have been drilled by the ELSA project (Eifel Laminated Sediment Archive) in Eifel dry maar lakes to reconstruct the palaeoclimatic and palaeoenvironmental conditions as well as the history of the volcanism in the Eifel/Central Europe during the last glacial cycles (Sirocko et al. 2005). Lake sediments accumulating in relict volcanic craters have undergone continuous deposition since the eruption of the maar volcano, and hence contain unique continuous local records of climate change.
The aim of this study is to test the applicability of luminescence dating techniques for the temporal successions of dust storm events.
Luminescence dating has been has been significantly improved over recent years and is widely used to establish confident chronologies of glacial/interglacial cycles (Schmidt et al. submitted). Equivalent doses (De) were determined applying the Single Aliquot Regenerative dose (SAR) protocol (Murray and Wintle 2000) using infra red light stimulation for feldspar and blue light stimulation for quartz. In further work other luminescence techniques like thermal transferred OSL (TT-OSL) and Infrared Radiofluorescence (IR-RF) will also be tested on the dust storm events of the maar lake sediments.
References
Murray, A.S., Wintle, A.G., 2000. Luminescence dating of quartz using an improved single-aliquot regenerative-dose protocol. Radiation Measurements, 32: 57-73.
Schmidt, E.D., Machalett, B., Marković, S.B., Tsukamoto, S., Frechen, M., submitted. Luminescence chronology of the upper part of the Stari Slankamen loess sequence (Vojvodina, Serbia). Quaternary Geochronology.
Sirocko, F., Seelos, K., Schaber K., Rein, B., Dreher, F., Diehl, M., Lehné, R., Jäger, K., Krbetschek, M., Degering, D., 2005. A Late Eemian Aridity Pulse in central Europe during the last glacial inception. Nature, 436: 833-836. |
|
|
|
|
|
|