武汉市东湖沉积物的磁性特征与重金属含量之间的关系

刘振东; 刘庆生; 汪汉胜; 王志勇; 杨涛; 曹国栋

Volume 31 Issue 2

Mar. 2006

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Article Navigation > Earth Science > 2006 > 31(2): 266-272

LIU Zhen-dong, LIU Qing-sheng, WANG Han-sheng, WANG Zhi-yong, YANG Tao, CAO Guo-dong, 2006. Relationship between Magnetic Properties and Heavy Metals of Sediments in Donghu Lake, Wuhan, China. Earth Science, 31(2): 266-272.

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Relationship between Magnetic Properties and Heavy Metals of Sediments in Donghu Lake, Wuhan, China

1.
Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China
2.
Graduate School, Chinese Academy of Sciences, Beijing 100039, China
3.
Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China

Received Date: 2005-05-28
Publish Date: 2006-03-25

Abstract

Abstract

In order to probe the relationship between urbanization processes and the extent of water contamination, measurements were taken the magnetic susceptibility (χ) of 114 samples, and of the frequency-dependent susceptibility and magnetic hysteresis parameters and heavy metal of representative samples from sediments of Guozheng Lake and Tanglin Lake, Wuhan, Hubei Province.Resultsshow that in Guozheng Lake no principal component predominates and the correlation between susceptibility and heavy metal content is low. However, in Tanglin Lake, a principal component originating from industry predominates. Fe (total iron), Co, V, Mn, Ti, Ba, Cr, Ni and Cu are highly correlated with saturation (Ms), isothermal remanent magnetization (SIRM) and χ and the correlation coefficients are generally higher than 0.87. For sediments of both lakes, the correlation of SIRM with contents of heavy metals is higher than that of χ. So, saturation isothermal remanent magnetization (SIRM) can be considered as a proxy of the extent of heavy metal pollution.
- lake sediments,
- magnetic parameters,
- heavy metals,
- Donghu Lake

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References(27)

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