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Article: Distribution of moisture contents and thermoluminescence ages in an inner shelf borehole from the new Hong Kong International Airport site, China

TitleDistribution of moisture contents and thermoluminescence ages in an inner shelf borehole from the new Hong Kong International Airport site, China
Authors
Issue Date2002
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/quaint
Citation
Quaternary International, 2002, v. 92, p. 35-43 How to Cite?
AbstractOffshore boreholes and excavations available through coastal engineering projects in the siliciclastics-dominated inner shelf of the northern South China Sea off Hong Kong have permitted the reconstruction of Quaternary sea-level history dating back to almost 0.5 Ma. In this study, moisture content and thermoluminescence (TL) dating are utilized to help verify ages for marine and terrestrial sediments in a 39.52 m offshore borehole from the new Hong Kong International Airport site. The distribution of moisture contents in borehole samples indicated the presence of three palaeo-desiccated crusts formed by soil development when the marine deposits of Oxygen Isotope (OI) stage 5, OI stage 7 and OI stage 9 were sub-acrially exposed during the low sea-level stand(s) of OI stages 2-4, OI stage 6 and OI stage 8, respectively. Out of the six TL dated borehole samples, three from a terrestrial deposit horizon have yielded finite ages of about 250,000 yr BP suggestive of OI stage 8. In these samples, the TL signal of quartz grains was found to increase well beyond the 250 Gy saturation level with the relatively high radiation fluxes allowing for age determination for only three samples. The three remaining samples of pre-Holocene marine deposits yielded minimum ages each having reached TL saturation. The importance of the moisture content upon the final determination of these sediment ages and the collection and storage of samples for TL dating is clearly demonstrated.
Persistent Identifierhttp://hdl.handle.net/10722/182407
ISSN
2015 Impact Factor: 2.067
2015 SCImago Journal Rankings: 1.123
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYim, WWSen_US
dc.contributor.authorPrice, DMen_US
dc.contributor.authorChoy, AMSFen_US
dc.date.accessioned2013-04-29T04:00:02Z-
dc.date.available2013-04-29T04:00:02Z-
dc.date.issued2002en_US
dc.identifier.citationQuaternary International, 2002, v. 92, p. 35-43en_US
dc.identifier.issn1040-6182en_US
dc.identifier.urihttp://hdl.handle.net/10722/182407-
dc.description.abstractOffshore boreholes and excavations available through coastal engineering projects in the siliciclastics-dominated inner shelf of the northern South China Sea off Hong Kong have permitted the reconstruction of Quaternary sea-level history dating back to almost 0.5 Ma. In this study, moisture content and thermoluminescence (TL) dating are utilized to help verify ages for marine and terrestrial sediments in a 39.52 m offshore borehole from the new Hong Kong International Airport site. The distribution of moisture contents in borehole samples indicated the presence of three palaeo-desiccated crusts formed by soil development when the marine deposits of Oxygen Isotope (OI) stage 5, OI stage 7 and OI stage 9 were sub-acrially exposed during the low sea-level stand(s) of OI stages 2-4, OI stage 6 and OI stage 8, respectively. Out of the six TL dated borehole samples, three from a terrestrial deposit horizon have yielded finite ages of about 250,000 yr BP suggestive of OI stage 8. In these samples, the TL signal of quartz grains was found to increase well beyond the 250 Gy saturation level with the relatively high radiation fluxes allowing for age determination for only three samples. The three remaining samples of pre-Holocene marine deposits yielded minimum ages each having reached TL saturation. The importance of the moisture content upon the final determination of these sediment ages and the collection and storage of samples for TL dating is clearly demonstrated.en_US
dc.languageengen_US
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/quainten_US
dc.relation.ispartofQuaternary Internationalen_US
dc.titleDistribution of moisture contents and thermoluminescence ages in an inner shelf borehole from the new Hong Kong International Airport site, Chinaen_US
dc.typeArticleen_US
dc.identifier.emailYim, WWS: wwsyim@hku.hken_US
dc.identifier.authorityYim, WWS=rp01746en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S1040-6182(01)00113-6en_US
dc.identifier.scopuseid_2-s2.0-0036264006en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036264006&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume92en_US
dc.identifier.spage35en_US
dc.identifier.epage43en_US
dc.identifier.isiWOS:000175741800004-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYim, WWS=7007024728en_US
dc.identifier.scopusauthoridPrice, DM=7403719577en_US
dc.identifier.scopusauthoridChoy, AMSF=15826278800en_US

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