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《Journal of Anhui Normal University(Natural Science)》 1995-01
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An Analysis on the Formation of the Mudstone of the Quaternary in Mt Jiuhua

Zhou Binggen;Li Xiaoyan;Zhu Shuanglian(Department of Geography)  
Grain is an important structural characteristics of sediment.Analysis of grainis one of the important ways to study dcpositing enviroment.Through the analysis ofthe grain of the sediment of the Quaternary of Mt.Jiuhua,it shows that the frequencycurve of the grain of sediments takes in the form of double peaks;the accumulatingcurve is smooth,and the grain is widely distribution;δ_1 lies between 1.5-2.0;Sk_1nearly above 0,tending to be positive;and kg lies between 0.452-0.8197.The charac-teristics of the mudstone sediment of the Quatenary in Mt.Jiuhu was neither the sedi-ments of flowing water nor the glacial one. It was the sediment of mud-rock flow inthe interperiglacial environment of monsoon-type,but its formation caurse was got intouch with the periglacial environment of monsoon-type. So,it was the periglacial en-vionment of monsoon-type during the ice period of the Quaternary in Mt.Jiuhua.
【Fund】: 安徽省教委资助的研究课题
【CateGory Index】: P534.63
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