Luminescence dating of a hearth from the archaeological site of Jiangxigou in the Qinghai Lake area of the northeastern Qinghai-Tibetan Plateau |
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| Institution: | 1. Luminescence Dating Laboratory, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, PR China;2. State Key laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, PR China;3. Texas Archeological Research Laboratory, University of Texas, Austin, TX 78712, USA;4. College of Biology and Geography, Qinghai Normal University 810000, Xining, PR China;5. Graduate University of Chinese Academy of Sciences, Beijing 100049, PR China;1. Key Laboratory of Humid Subtropical Eco-geographical Processes, Ministry of Education, College of Geography Science, Fujian Normal University, Fuzhou 350007, China;2. Institute of Geography, Fujian Normal University, Fuzhou 350007, China;3. College of Tourism and Air Service, Guizhou Minzu University, Guiyang 550025, China;4. Innovation Center and Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China;5. High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei 106, Taiwan, ROC;1. Institute of Archaeology and Ethnography, Siberian Branch, Russian Academy of Sciences, Pr. Akademika Lavrentieva 17, Novosibirsk, 630090, Russia;2. Savannah River Archaeological Research Program, South Carolina Institute of Archaeology and Anthropology, University of South Carolina, Columbia, South Carolina, 29208-0017, USA;3. Department of Archaeology, Graduate School of Arts and Letters, Tohoku University, Kawauchi 27-1, Aoba ward, Sendai, Miyagi, 980-8576, Japan;4. Institute of Archaeology, Mongolian Academy of Sciences, Zhukoviyn Gudamzh 77, Ulaanbaatar, 51, Mongolia;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. Nordic Laboratory for Luminescence Dating, Department of Geoscience, Aarhus University, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark;2. Center for Nuclear Technologies, Technical University of Denmark, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark;3. Leibniz Institute for Applied Geophysics, Section 3: Geochronology and Isotope Hydrology, Stilleweg 2, Hannover 30655, Germany;4. Neotectonics Research Group, Geoscientific Research Department, Tono Geoscience Center, Sector of Decommissioning and Radioactive Waste Management, Japan Atomic Energy Agency, 959-31 Izumicho-Jorinji, Toki, Gifu 509-5102, Japan;5. Graduated School of Science and Engineering, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan;6. Department of Geography, Tokyo Metropolitan University, Hachioji, 1-1 Minamiosawa, Hachioji, Tokyo 192-0397, Japan |
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| Abstract: | Archeological research over the past several years has started to provide evidence relevant to understanding both the timing of and processes for human colonization of the high Qinghai-Tibetan Plateau. Much of this research has been in the Qinghai Lake area and the Qaidam Basin in the northeastern Qinghai-Tibetan Plateau. However, chronological data are still limited. Recently, a hearth was discovered in the Jiangxigou site in the south of the Qinghai Lake area, which was likely used by prehistoric hunters. The site is in the mouth of a canyon approximately 4.5 km from Qinghai Lake. Previous ages in this site are based on 14C dating only. The current study provides additional OSL dates for the hearth. The ages of four OSL samples bracketing the hearth range from 12.9 ± 0.9 to 14.4 ± 1.0 ka, but standard deviations overlap extensively and they likely represent the same age. The OSL ages show that by about 14.3 ± 1.0 ka prehistoric peoples were living in the Qinghai Lake area. |
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