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PALEOMAGNETISM AND MAGNETIC SUSCEPTIBILITY OF THE QUATERNARY SEDIMENTS AT THE HESHANGDUN PALEOLITHIC SITE IN JINTAN,JIANGSU PROVINCE

ZHU Cheng~ 1) , ZHANG Yang-yang~ 1) , MA Chun-mei~ 1) , FANG Ying-san~ 2) , and WU Chun-lin~ 1) 1) College of Geography and Ocean Sciences, Nanjing University, Nanjing, 210093; 2) Nanjing Museum, Nanjing, 210016  
Recent years, more and more susceptibility analysis has been applied in the study of Quaternary aeolian sediments in northern China. In this article, we use systematic paleomagnetism and susceptibility to determine that the age of the Heshangdun Paleolithic Site in Jintan, Jiangsu Province is 33 kaBP for a thickness of 750 cm. Based on the magnetic susceptibility data, this area experienced four warm-wet periods: 24 kaBP, 110 kaBP, 200 kaBP and 300 kaBP. In between, there are 3 dry and cold periods. There paleoclimatic periods are represented by 4 paleosol and 3 loess beds. Despite potential limits paleomagnetism in combination with magnetic susceptiblity can provide accurate age constraints on the Quaternary aeolian sediments.
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