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Science in China Series B: Chemistry

, Volume 44, Supplement 1, pp 185–189 | Cite as

Magnetic normalization of particle size effects in a heavy metal pollution study of intertidal sediments from the Yangzte Estuary

  • Weiguo Zhang
  • Lizhong Yu
  • Simon M. Hutchinson
Article

Abstract

Magnetic, granulometric and geochemical analyses were conducted on an intertidal sediment core from the Yangtze Estuary to evaluate the possibility of normalizing samples for particle size effects in a heavy metal pollution study by means of magnetic proxies. It has been found that the magnetic parameterϰARM, indicating fine grained ferrimagnetic minerals, correlates well with the clay content and organic matter concentration of the sediments.ϰARM also shows significant relationship with heavy metals. ThereforeϰARM is proposed as a proxy for clay content in the sediments, and can be used to compensate for the particle size effect in sedimentary heavy metal records, where magnetic minerals are not subject to significant post-depositional alteration.

Keywords

particle size heavy metals normalization magnetic proxy Yangtze Estuary 

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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Weiguo Zhang
    • 1
  • Lizhong Yu
    • 1
  • Simon M. Hutchinson
    • 2
  1. 1.State Key Laboratory of Estuarine and Coastal ResearchEast China Normal UniversityShanghaiChina
  2. 2.Telford Institute of Environmental Systems, School of Environmental & Life SciencesUniversity of SalfordGt. ManchesterUK

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