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OSL dating of fine and coarse quartz from a Palaeolithic sequence on the Bistrita Valley (Northeastern Romania)

Title data

Trandafir, Oana ; Timar-Gabor, Alida ; Schmidt, Christoph ; Veres, Daniel ; Anghelinu, Mircea ; Hambach, Ulrich ; Simon, Simion:
OSL dating of fine and coarse quartz from a Palaeolithic sequence on the Bistrita Valley (Northeastern Romania).
Universität Cluj-Napoca; Faculty of Humanities, Valahia University, Targoviste; Institute of Speology, Romanian Academy
In: Quaternary Geochronology. Vol. 30,B (2015) . - pp. 487-492.
ISSN 1871-1014
DOI: https://doi.org/10.1016/j.quageo.2014.12.005

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
Lumineszenz-Chronologien spätpleistozäner Siedlungen in den rumänischen KarpatenSCHM 3051/1-1

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Previous works focused on optically stimulated luminescence dating of quartz extracted from Romanian and Serbian loess reported significant discrepancies between ages obtained on fine (4-11 µm) and coarse (63-90 µm) quartz. The present study is directed at expanding these investigations. The SAR-OSL and double SAR-OSL protocols are applied on quartz of different grain sizes belonging to 9 samples extracted from a newly identified archaeological site at Bistricioara-Lutarie III on the Bistrița Valley (NE Romania). Radiocarbon ages are also obtained for the 3 uppermost cultural layers hosted in the loess-like deposit. Discrepant ages are obtained between fine (4-11 µm) and coarse (63-90 and 90-200 µm, respectively) quartz for equivalent doses higher than ~80-100 Gy. However, a very good agreement is achieved for the youngest sample, with an age of ~8 ka (with a De of 38 Gy for fine and 35 Gy for coarse grains, respectively). The comparison with independent control provided by radiocarbon dating suggests better agreement of ages calculated for coarse quartz. Our results are once again proof that concerns should be raised regarding the reliability of the equivalent doses obtained on quartz samples for which the laboratory dose response cannot be fitted by a single saturating exponential function. Further systematic investigations are required regarding the very different saturation characteristics of fine and coarse grained quartz.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: OSL dating; Radiocarbon dating; Quartz grain size; Romania
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Geomorphology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Former Professors > Chair Geomorphology - Univ.-Prof. Dr. Ludwig Zöller
Profile Fields > Advanced Fields > Ecology and the Environmental Sciences
Profile Fields > Advanced Fields > Nonlinear Dynamics
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 550 Earth sciences, geology
Date Deposited: 24 Nov 2015 08:44
Last Modified: 06 May 2016 12:42
URI: https://eref.uni-bayreuth.de/id/eprint/22589