OSL and ESR studies of Aeolian quartz from the Upper Pleistocene loess sequence of Nussloch (Germany) |
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| Authors: | H Tissoux H Valladas P Voinchet JL Reyss N Mercier C Falguères J-J Bahain L Zöller P Antoine |
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| Institution: | 1. Département de Préhistoire du Muséum national d''Histoire naturelle, UMR 7194, 1 rue René-Panhard, 75013 Paris, France;2. Laboratoire des Sciences du Climat et de l''environnement, CEA/CNRS/UVSQ, avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France;3. Centre de Recherche en Physique Appliquée à l''Archéologie, UMR5060 CNRS, Université de Bordeaux, Esplanade des Antilles, 33607 Pessac Cedex, France;4. Chair of Geomorphology, University of Bayreuth, D-95440 Bayreuth, Germany;5. Laboratoire de Géographie Physique, UMR8591, 1 Place Aristide Briand, 92195 Meudon Cedex, France |
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| Abstract: | As part of a chronological study of the famous Upper Pleistocene Nussloch (Germany) loess sequence, three samples were collected to check the applicability of palaeodosimetric dating methods (OSL and ESR) to quartz grains. The ESR-multicentre method showed a partial bleaching of the ESR centers in aeolian sands. This partial bleaching was also observed by OSL. Laminated loess seemed to be sufficiently bleached but showed a large scatter of the doses, which we ascribed to heterogeneous responses of the luminescent grains to the SAR protocol. Ages could nevertheless be calculated for the three samples and were found to be somewhat older than the IRSL and 14C ages obtained for the same layers of the laminated loess. |
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