Recuperated optically stimulated luminescence dating of middle-size quartz grains from the Palaeolithic site of Bonneval (Eure-et-Loir,France) |
| |
| Authors: | Xuefeng Sun Norbert Mercier Christophe Falgueres Jean-Jacques Bahain Jackie Despriee Grégory Bayle Huayu Lu |
| |
| Institution: | 1. School of Geographical and Oceanographical Sciences, Nanjing University, No. 22 Hankou Road, Nanjing 210093, China;2. Muséum national d''Histoire naturelle, Département de Préhistoire, 1 rue René Panhard, Paris 75013, France;3. Laboratoire des Sciences du Climat et de l''Environnement, UMR CEA/CNRS, Gif sur Yvette 91190, France;4. Institut National de Recherches Archéologiques Préventives (INRAP), 3 avenue Claude-Guillemin, Orléans la Source 45060, France |
| |
| Abstract: | The site of Bonneval (France) exhibits a 6 m thick stratigraphical sequence in which Middle and Lower Palaeolithic artefacts were discovered. The stratigraphy of the site consists of an alternation of loess-like silt layers deposited along glacial stages, and paleosoil horizons corresponding to the vegetal stabilization of the area during interglacials. These layers hence provide past environmental informations and can be used as stratigraphical markers and compared with well dated sequences of Northern France. Eight sediment samples from this Middle and Upper Pleistocene sequence were dated using the recuperated optically stimulated luminescence (Re-OSL) signal of quartz grains. The middle-size fraction (40–63 μm) shows a good reproducibility of the OSL signals which allows the application of a multiple-aliquot additive-dose approach for De determination. For all samples, the growth curves are linear up to an accumulated dose of 3000 Gy. The Re-OSL ages range from ～100 to ～450 ka and are in good agreement with the independent chronological information; they establish when handaxe industries have been made during the Middle and Upper Pleistocene in the Paris Basin. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
