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Climate Change in Northern Jiangsu Basin Since the Last Interglacial

SHU Qiang1a,1b,XIAO Jia-yi1a,1b,ZHANG Mao-heng1a,1b,ZHAO Zhi-jun1a,1b,CHEN Ye1a,1b,LI Ji-jun1a,1b,2(1a.College of Geography Science;1b.Key Laboratory of Environmental Evolution and EcologicalConstruct of Jiangsu Province,Nanjing Normal University,Nanjing 210046,China;2.College of Earth and Environment Science,Lanzhou University,Lanzhou 730000,China)  
According to the composite analysis of mass susceptibility,sporo-pollen in the XH1 core in northern Jiangsu basin and dating result of14C,the paleomagnetism suggests that paleoclimate changes can be distinguished into five stages distinctly: in depth of 25-16.5 m(Last interglacial period),relatively humid period;16.5-12.5 m(Early stadial of last glacial period),relatively arid period;12.5-9.5 m(Inter-stadial period),relatively humid period;9.5-5.8 m(Last maximum glacial period),relatively arid period;and 5.8-0 m(Late glacial period),relatively humid period.After comparing the deposit record of the top 25 m core profile with records of Guliya ice cores and deep sea cores,it can be concluded that the evolvement of paleoclimate in XH1 core shows not only consistence with global characteristics,but also has its own speciality.
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