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首页> 外文期刊>Quaternary geochronology >Dating results on sedimentary quartz, bones and teeth from the Middle Pleistocene archaeological site of Coudoulous I (Lot, SW France): A comparative study between TT-OSL and ESR/U-series methods
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Dating results on sedimentary quartz, bones and teeth from the Middle Pleistocene archaeological site of Coudoulous I (Lot, SW France): A comparative study between TT-OSL and ESR/U-series methods

机译：Coudoulous I（法国西南部Lot）中更新世考古遗址对沉积石英，骨骼和牙齿的约会结果：TT-OSL与ESR / U系列方法的比较研究

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摘要

This study presents palaeodosimetric results from the Middle Pleistocene archaeological site of Coudoulous I (Lot, SW France). Nine sedimentary quartz samples (41-60 mu m) have been analyzed using a multiple aliquot protocol based on the measurement of the TT-OSL signal. In addition, 7 teeth and 7 bones have been dated by combining the ESR method with U-series analyses. Both methods gave consistent age results allowing correlation of the Early Middle Paleolithic Human occupation of the site to MIS 6 and part of the Lower Paleolithic tools to MIS 7. Beyond the establishment of a radiometric chronology for the Coudoulous I sequence, this study focuses on the information extracted from the intercomparison of the methods. Our data suggest that 1) the TT-OSL signal is stable over at least the last 230 ka (considering the age range of the studied samples), 2) there are not significant problems of incomplete bleaching leading support to the applicability of the TT-OSL technique for sedimentary deposits associated with karstic contexts. This approach highlights the interest of combining luminescence and ESR/U-series methods to discuss the reliability of the dating results. (C) 2015 Elsevier B.V. All rights reserved.
机译：这项研究提供了古杜鲁斯一世（法国SW，法国）的中更新世考古遗址的古古生物学结果。根据TT-OSL信号的测量结果，使用多重等分方案对9个沉积石英样品（41-60μm）进行了分析。此外，通过将ESR方法与U系列分析相结合，已经确定了7颗牙齿和7块骨头的年代。两种方法都给出了一致的年龄结果，从而使该遗址的早期中古旧人类占领与MIS 6相关，而较低的旧石器时代工具与MIS 7相关。除了为库杜古I序列建立放射年代学之外，本研究重点在于从方法的比较中提取的信息。我们的数据表明：1）TT-OSL信号至少在最后230 ka内是稳定的（考虑到所研究样品的年龄范围），2）漂白不完全没有重大问题，这为TT-OSL的适用性提供了支持OSL技术用于与岩溶环境相关的沉积物沉积。这种方法强调了将发光与ESR / U系列方法相结合以讨论测年结果的可靠性的兴趣。 （C）2015 Elsevier B.V.保留所有权利。

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