Osl dating sand

30 Nov

We discuss the main controls of coastal aeolian sand development in the research area based on the OSL chronology.

Compared with East Asian monsoon change sequence and the history of typhoon landfalls in Fujian, the result shows that the main control is the intensity of East Asian winter monsoon, but not the precipitation, typhoon landfalls and sea level change.

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The School of Geography and the Environment, in association with the RLAHA Luminescence Dating Laboratory, Research Laboratory for Archaeology and the History of Art, houses a state of the art luminescence dating facility: the Oxford Luminescence Dating Laboratory (OLD).

Quaternary Science Reviews, 2008, 27(21/22): 2076-2090.[12] D? Reconstruction of the Holocene coastal development at Fulong Beach innorth-eastern Taiwan using optically stimulated luminescence (OSL) dating. 第四纪研究, 1991, 11(2): 113-122.][37] Li Congxian, Chen Gang, Wang Xiuqiang. Research on the Holocene coastal dune sand in South China coast. Luminescence dating of fluvial and coastal red sediments in the SE coast, India,and implications for paleoenvironmental changes and dune reddening. 地理科学, 2012, 32(2): 207-212.][42] Jiang Xiuyang, Li Zhizhong, Shen Chuanzhou et al. A preliminary investigation of historical wind-drift sand along the western coast of the Taiwan Strait. Palaeogeography, Palaeoclimatology, Palaeoecology, 2011, 308(3/4): 492-501.[53] Hu Fangen, Li Zhizhong, Jin Jianhui et al. A 1000-year history of typhoon landfalls in Guangdong, southern China, reconstructed from Chinese historical documentary records.Quaternary Research, 2012, 77(3): 468-481.[9] Tamura T, Mark D B. 中国沙漠, 1996, 16(3): 227-233.][41] Jiang Xiuyang, Li Zhizhong, Li Jinquan et al. 2100-590 a BP stable isotope records from Tian'e Cave and theirregional climate significance. A primary research on multiphase development pattern of "Old Red Sand"in Jingjiang coast of southeast Fujian. Annals of the Association of American Geographers, 2001, 91(3): 453-464.In this paper, quartz single aliquot regenerative optically-stimulated luminescence (OSL) dating with high resolution sampling was firstly applied to coastal aeolian sand in China for the Anshan (SHA) section (24°36′32.7″ N, 118° 39′ 20.3″ E) near the Anshan archaeological site along the Jinjiang coast, southeast Fujian.Through grain-size analysis, we assume that the SHA section demonstrates typical coastal aeolian sand characteristics, and affected by the blowout and chemical weathering after coastal sand deposited, the grain size parameter and content of different sizes of fraction have a large change, the grain size become coarser, the sorting for worse.The OLD Laboratory also provides a commercial luminescence dating service and works closely with clients in industry, archaeological organizations, environmental institutes and other academic groups. College of Geographical Science, Fujian Normal University, Fuzhou 350007, China; 2.Marine Geology &Quaternary Geology, 2006, 26(4): 99-104. A review on the research status of forming mechanism of coastaldunes. Earth and Planetary Science Letters, 2010, 29: 171-179.[27] Zhang Jiafu, Mo Dowen, Xia Zhengkai et al. Optical dating of sediments from China and its implication fordepositional processes. The OSL ages of the 11 samples range from 839±132a to 108±21a show that SHA section formed in nearly 1000 years, and three periods of coastal aeolian sand activity can be divided, AD1050-1300, AD1470-1600 and AD1720-1950 respectively.Especially during the little ice age (LIA), coastal aeolian sand activity is strong, the development of coastal dunes sand is prevailing, and the OSL age shows that the coastal aeolian sand deposition represents a multiphase and episodic feature.