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STUDY ON MAGNETIC FABRIC PARAMETERS OF LAKE SEDIMENTS IN ARID AREA AND ENVIRONMENTAL CHANGES
Author(s): 
Pages: 95-102
Year: Issue:  2
Journal: MARINE GEOLOGY & QUATERNARY GEOLOGY

Keyword:  磁组构湖泊沉积物环境变化;
Abstract: 对干旱区终闾湖泊沉积物磁组构参数进行了研究,表明干旱区湖泊沉积物磁组构参数值基本介于水动力、风动力沉积物的量值之间.在湖相、湖沼相、泥炭层及受人类影响的洪泛沉积段,沉积物磁组构参数值有明显的区别,同时在同一沉积相中其参数值也存在较大的变化,指示了沉积动力强度和沉积环境方面的差异.研究发现湖泊沉积物磁组构参数尤其是磁化率各向异性度、磁面理能较好地指示古环境变化的信息.
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