LONG Yu, LI Yong-Tao, LI Xiao. Age Determination of Recent Sedimentation Boundary in the East Lake, Wuhan, Identified by Magnetic Susceptibility Measurements and Industrial Events[J]. Acta Sedimentologica Sinica, 2002, 20(3): 421-426.
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LONG Yu, LI Yong-Tao, LI Xiao. Age Determination of Recent Sedimentation Boundary in the East Lake, Wuhan, Identified by Magnetic Susceptibility Measurements and Industrial Events[J]. Acta Sedimentologica Sinica, 2002, 20(3): 421-426.
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Age Determination of Recent Sedimentation Boundary in the East Lake, Wuhan, Identified by Magnetic Susceptibility Measurements and Industrial Events
- Received Date: 2001-09-27
- Rev Recd Date:
2002-02-19
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Abstract
Accurate determination of sedimentation boundary age in recent lake is a basic work relevant to environmental investigation. based on the relationship of two industrial events and type of magnetic substance,magnetic suscepti bility,depositional characteristics in five cores from the east Lake,Wuhan,Hubei,China,the changes of sedimentation rate have been recognized during a period of past 110 years and t wo historically events in A. D. 1740 and 1810. the boundaries be ween the layers attributed to changes in industrial activity around the lake. the study illustrates the value of magnetic suscepti bility for identifying time planes in recent sediments,and obtains the difference of sedimentation rates in different period and，furthermore,discusses the cause of magnetic susceptibility influenced by the charge of magnetic substance.
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