Optical dating of flowstone and silty carbonate-rich sediments from Panxian Dadong Cave,Guizhou, southwestern China |
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| Institution: | 1. MOE Laboratory for Earth Surface Processes, Department of Geography, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China;2. Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, 100044, China;1. Yunnan Institute of Cultural Relics and Archaeology, Kunming, Yunnan Province, China;2. Institute for Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China;3. School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa;4. Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South Africa;5. Muséum National d''Histoire Naturelle, UMR 7194 CNRS-MNHN-UPVD, Institut de Paléontologie Humaine, Paris, France;6. Department Archaeology, College of Humanities, Wuhan University, Wuhan, China;7. Lincang Institute Cultural Relics, Linxiang, Yunnan Province, China;1. State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;2. Department of Earth Sciences, University of Hong Kong, Hong Kong, China;3. Centre for Archaeological Science, School of Earth and Environmental Sciences, University of Wollongong, Wollongong, NSW 2522, Australia;4. Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100049, China;1. Department of Periglacial Research, Alfred-Wegener-Institute for Polar and Marine Research, 14473 Potsdam, Germany;2. Luminescence Laboratory, Institute of Applied Physics, TU Bergakademie Freiberg, 09596 Freiberg, Germany;3. Department of Geography, Justus-Liebig-University Giessen, 35390 Giessen, Germany;4. Institute for Geography, University of Cologne, 50923 Cologne, Germany;5. Section 5.1 Geomorphology, GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany;6. Geographical Institute, Geomorphology, University of Bayreuth, 95440 Bayreuth, Germany;1. Guangxi Museum of Nationalities, Nanning, Guangxi 530022, China;2. Department of Anthropology, University of Hawai''i at Manoa, 2424 Maile Way, 346 Saunders Hall, Honolulu, HI 96822, USA;1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 99 Lincheng Road, Guiyang, 550081, China;2. Department of Geosciences, National Taiwan University, Taipei, 10617, Taiwan, ROC;3. College of Geographical Sciences, Nanjing Normal University, Nanjing, 210023, China;4. School of Archaeology and Museology, Peking University, Beijing, 100871, China;5. Guizhou Provincial Institute of Cultural Relics and Archaeology, Guizhou, 550004, China;1. MOE Laboratory for Earth Surface Processes, Department of Geography, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China;2. Institute of Cultural Relics and Archaeology of Hunan Province, Changsha, 410008, China |
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| Abstract: | Panxian Dadong Cave located in the western Guizhou is a very important Paleolithic site in China. At this site bone and stone artifacts, human teeth and mammalian fossils (known as Ailuropoda-Stegodon fauna) were found, and the site was previously dated to 120–300 ka using ESR/uranium-series methods. In this study, we successfully extracted fine quartz grains from flowstone and silty carbonate-rich sediments in the excavated area. The quartz extracts displayed excellent luminescence properties, and satisfied the SAR (single-aliquot regenerative dose method) acceptance criteria. The sensitivity-corrected OSL signals are not saturated at a dose up to about 1400 Gy. The cultural unit was OSL dated to 190–300 ka, corresponding to MISs 7–8. The flowstone deposits overlying the cultural unit were determined to be 13–190 ka and the silty carbonate-rich sediments underlying the cultural unit to be 300–360 ka. The optical ages are in general agreement with the coupled ESR/U-series and U-series ages. |
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| Keywords: | Optical dating Flowstone Silty carbonate-rich sediment Cave sediment Radioactive equilibrium Middle Pleistocene site Panxian Dadong |
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