Late pleistocene evolution of Lake Manas in western China with constraints of OSL ages of lacustrine sediments |
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| Institution: | 1. Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong;2. Department of Geosciences, National Taiwan University, Taiwan, ROC;1. Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China;2. Texas Archeological Research Laboratory, University of Texas, 1 University Station R7500, Austin, TX 78712, USA;1. Key Laboratory of Western China''s Environmental Systems, Ministry of Education of China, Lanzhou University, Lanzhou 730000, China;2. Department of Geoscience, Eberhard Karls Universität Tübingen, Tübingen 72074, Germany;1. College of Earth and Environmental Sciences, MOE Key Laboratory of Western China’s Environmental Systems, Lanzhou University, Lanzhou, 730000, China;2. Department of Geology and Environmental Science, University of Pittsburgh, Pittsburgh, 15260, USA;3. College of Urban and Environmental Sciences, Central China Normal University, Wuhan, 430079, China;4. Institute of Tibetan Plateau Research, Key Laboratory of Alpine Ecology, Chinese Academy of Sciences, Beijing, 100101, China;1. College of Earth and Environmental Sciences, MOE Key Laboratory of Western China''s Environmental Systems, Lanzhou University, Lanzhou 730000, China;2. Chinese Academy of Sciences Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China;3. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China;4. State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;5. Department of Geology and Environmental Science, University of Pittsburgh, Pittsburgh 15260, USA |
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| Abstract: | Lake Manas, located in northwestern China, has been formed in a structure depression since early Quaternary. Optically stimulated luminescence (OSL) dating is applied to the lacustrine and aeolian deposits collected from the lake to construct a chronological frame for lake level fluctuations since the last inter-glacial period. The results yielded two stages of high lake stands (∼20 m above the present lake bed) occurred before 66 ka and 38–27 ka ago. No evidence for Holocene high lake level was found in the studying area. |
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