| 古气候与古环境 |
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| Grain\|size Distribution Characteristics of Red Sandy Sediments in Dongjiang River Valley, Southern Nanling Mountains during MIS2 Phase |
DU Shu\|huan1, LI Bao\|sheng1,2, WEN Xiao\|hao1, LI Hou\|xin3,
NIU Dong\|feng1,4, OU Xian\|jiao1, QIU Shi\|fan1 |
| 1.Department of Geography, South China Normal University, Guangzhou 510631, China; 2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China; 3.Institute of Guangzhou Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 4.Baotou Vocational College, Baotou 010022, Inner Mongolia, China |
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Abstract Layer LJ3 of Linjiang stratigraphic section in Dongjiang river valley in the south of Nanling Mountains is a set of red sandy sediments. Measured by TL dating it was found to be formed in MIS2 phase of (9 500±800)—(19 600±1 800)a BP. Analyzed by the grain sizes of the 16 samples (LJ3-100 to LJ3-85) in this layer, it was discovered that: ①The contents of each grain group in different samples are similar;② The values of Md, Mz, σ ,Sk and Kg swing from LJ3-100 to LJ3\|85 in a narrow range;③The segments of each samples in the accumulative curves extend parallel with similar slopes. All the three aspects reveal the aeolian characteristics of layer LJ3. Hereby, the layer LJ3 is made up of red sandy sediments formed in MIS2 in the south of Nanling Mountain, reflecting the arid climate at that time.
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Received: 17 October 2006
Published: 20 September 2007
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Cite this article:
DU Shu\|huan;LI Bao\|sheng;WEN Xiao\|hao;LI Hou\|xin;NIU Dong\|feng;OU Xian\|jiao;QIU Shi\|fan. Grain\|size Distribution Characteristics of Red Sandy Sediments in Dongjiang River Valley, Southern Nanling Mountains during MIS2 Phase. JOURNAL OF DESERT RESEARCH, 2007, 27(5): 771-774.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2007/V27/I5/771
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2007, Vol. 27 
