| 古气候与环境演变 |
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| Short-term Climate Events in Late Glacial Recorded by Rare Earth Elements and Sedimentary Grain-size in Tableland Profile in Liyang Plain, Hunan |
MAO Long-jiang1,2, MO Duo-wen2, ZHOU Kun-shu3, GUO Wei-min4,
YANG Jing-hong5, DENG Hui2, SHI Chen-xi2, JIA Jing-yu2 |
| 1.College of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing 210044, China; 2.College of Urban and Environmental Sciences, Peking University, Beijing 100871, China; 3.Institute of Geology and Geophysics, CAS, Beijing 100029, China; 4.Hunan Provincial Institute of Cultural Relies and Archaeology, Changsha 410008, China; 5.Department of Earth Science, Nanjing University, Nanjing 210093, China |
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Abstract Based on field investigation, sampling, and experimental analysis such as grain size and rare earth elements(REE) analysis, as well as AMS14C dating at the SL soil profile in the Liyang plain, the soil formation process has been revealed, and the short-term climate change events in Late glacial have been determined. The results show the REE distribution patterns of sediments from SL soil profile in Liyang Plain is similar to those of loess-paleosol in the Loess Plateau, and Xiashu loess in Zhenjiang. Moreover, field investigation results show the sediments have no trace of fluvial. Therefore, sediments from SL profile were formed by dust depositions. The results of grain-size analysis proved that the SL profile has well recorded the climate change processes in Late glacial, and high-resolution climate events were revealed, such as BL event (14.74 ka BP to 13.82 ka BP), Older YD event (13.82 ka BP to 12.86 ka BP), AL event (12.86 ka BP to 11.46 ka BP), YD event (9.9 ka BP to 9.00 ka BP). During 9 000~8 000 a BP, the weather was so good that people moved to the tableland in Liyang Plain, resulting in the rising of PengTouShan culture some connection with the paleolithic and Neolithic culture in middle reaches of Changjiang River.
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Received: 22 September 2008
Published: 20 March 2010
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Cite this article:
MAO Long-jiang;MO Duo-wen;ZHOU Kun-shu;GUO Wei-min; YANG Jing-hong;DENG Hui;SHI Chen-xi;JIA Jing-yu. Short-term Climate Events in Late Glacial Recorded by Rare Earth Elements and Sedimentary Grain-size in Tableland Profile in Liyang Plain, Hunan. JOURNAL OF DESERT RESEARCH, 2010, 30(2): 267-272.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2010/V30/I2/267
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2010, Vol. 30 
