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Conference Paper: Magnetic susceptibility and distribution of heavy metals in sea-floor sediments of Hong Kong

TitleMagnetic susceptibility and distribution of heavy metals in sea-floor sediments of Hong Kong
Authors
Chan, LSYeung, CHYim, WWSOr, OL
Issue Date1997
Citation
Engineering Geology And The Environment. Proc. Symposium, Athens, 1997. Vol.2, 1997, p. 1681-1686 How to Cite?
AbstractWe have conducted magnetic susceptibility measurements of 24 vibrocores obtained from an area located off the coast of Lantau Island in Hong Kong. High values of magnetic susceptibility were detected in the top sections of most of the cores. The processes that led to the enrichment of magnetic particles in the uppermost layer of the sediments could have been anthropogenic or geological. Statisticsl correlation between magnetic susceptibility and heavy metal concentration, especially for Pb, Zn, and Cu, as well as the spatial distribution pattern of the magnetic susceptibility values, have argued for an anthropogenic origin. The present study suggests that magnetic susceptibility is potentially useful as an indicator for contamination of seabed sediment and may provide us with a fast, inexpensive, and non-destructive means of detecting and mapping contaminated sediments.
Persistent Identifierhttp://hdl.handle.net/10722/117030

 

DC FieldValueLanguage
dc.contributor.authorChan, LSen_HK
dc.contributor.authorYeung, CHen_HK
dc.contributor.authorYim, WWSen_HK
dc.contributor.authorOr, OLen_HK
dc.date.accessioned2010-09-26T06:58:07Z-
dc.date.available2010-09-26T06:58:07Z-
dc.date.issued1997en_HK
dc.identifier.citationEngineering Geology And The Environment. Proc. Symposium, Athens, 1997. Vol.2, 1997, p. 1681-1686en_HK
dc.identifier.urihttp://hdl.handle.net/10722/117030-
dc.description.abstractWe have conducted magnetic susceptibility measurements of 24 vibrocores obtained from an area located off the coast of Lantau Island in Hong Kong. High values of magnetic susceptibility were detected in the top sections of most of the cores. The processes that led to the enrichment of magnetic particles in the uppermost layer of the sediments could have been anthropogenic or geological. Statisticsl correlation between magnetic susceptibility and heavy metal concentration, especially for Pb, Zn, and Cu, as well as the spatial distribution pattern of the magnetic susceptibility values, have argued for an anthropogenic origin. The present study suggests that magnetic susceptibility is potentially useful as an indicator for contamination of seabed sediment and may provide us with a fast, inexpensive, and non-destructive means of detecting and mapping contaminated sediments.en_HK
dc.languageengen_HK
dc.relation.ispartofEngineering geology and the environment. Proc. symposium, Athens, 1997. Vol.2en_HK
dc.titleMagnetic susceptibility and distribution of heavy metals in sea-floor sediments of Hong Kongen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailChan, LS: chanls@hku.hken_HK
dc.identifier.emailYim, WWS: wwsyim@hku.hken_HK
dc.identifier.authorityChan, LS=rp00665en_HK
dc.identifier.authorityYim, WWS=rp01746en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0031403956en_HK
dc.identifier.hkuros24162en_HK
dc.identifier.hkuros34999-
dc.identifier.spage1681en_HK
dc.identifier.epage1686en_HK
dc.identifier.scopusauthoridChan, LS=7403540528en_HK
dc.identifier.scopusauthoridYeung, CH=36848789500en_HK
dc.identifier.scopusauthoridYim, WWS=7007024728en_HK
dc.identifier.scopusauthoridOr, OL=6507569187en_HK

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