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Conference Paper: Diatom preservation in an inner continental shelf borehole from the South China Sea

TitleDiatom preservation in an inner continental shelf borehole from the South China Sea
Authors
KeywordsContinental Shelf
Diatoms
Quaternary
Sea-Level Changes
Sediments
South China Sea
Issue Date2000
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaes
Citation
Journal Of Asian Earth Sciences, 2000, v. 18 n. 4, p. 471-488 How to Cite?
AbstractDiatom distribution in a 60-m long borehole from a siliciclastics-dominated 'stable' inner continental shelf in the South China Sea off Hong Kong was investigated. The Quaternary sediments contained evidence for five interglacial marine transgressions dating back to oxygen-isotope Stage 12, and yielded 53 genera and 186 taxa of diatoms. Intertidal species and nearshore shallow water species, including both planktonic and benthonic tropical and subtropical varieties, were dominant. Four diatom zones reflecting the shallow water environment have been recognized in the top 13.8 m of the borehole. Diatoms are missing in Stage 11 while Stage 7 and Stage 9 are very low in diversity and abundance compared to Stage 1 and Stage 5. The distribution pattern found is accounted for by the duration of time available for frustule dissolution through acid-sulphate soil development during Stages 2, 6, 8 and 10 when the shelf was subaerially exposed. Preservation of diatoms is best in Stage 1 because the deposits have never been subaerially exposed followed closely by Stage 5. Aging mainly through post-depositional dissolution is identified as the important controlling factor in determining diatom distribution in pre-Holocene deposits. (C) 2000 Elsevier Science Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/182421
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.393
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYim, WWSen_US
dc.contributor.authorLi, Jen_US
dc.date.accessioned2013-04-29T04:00:22Z-
dc.date.available2013-04-29T04:00:22Z-
dc.date.issued2000en_US
dc.identifier.citationJournal Of Asian Earth Sciences, 2000, v. 18 n. 4, p. 471-488en_US
dc.identifier.issn1367-9120en_US
dc.identifier.urihttp://hdl.handle.net/10722/182421-
dc.description.abstractDiatom distribution in a 60-m long borehole from a siliciclastics-dominated 'stable' inner continental shelf in the South China Sea off Hong Kong was investigated. The Quaternary sediments contained evidence for five interglacial marine transgressions dating back to oxygen-isotope Stage 12, and yielded 53 genera and 186 taxa of diatoms. Intertidal species and nearshore shallow water species, including both planktonic and benthonic tropical and subtropical varieties, were dominant. Four diatom zones reflecting the shallow water environment have been recognized in the top 13.8 m of the borehole. Diatoms are missing in Stage 11 while Stage 7 and Stage 9 are very low in diversity and abundance compared to Stage 1 and Stage 5. The distribution pattern found is accounted for by the duration of time available for frustule dissolution through acid-sulphate soil development during Stages 2, 6, 8 and 10 when the shelf was subaerially exposed. Preservation of diatoms is best in Stage 1 because the deposits have never been subaerially exposed followed closely by Stage 5. Aging mainly through post-depositional dissolution is identified as the important controlling factor in determining diatom distribution in pre-Holocene deposits. (C) 2000 Elsevier Science Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaesen_US
dc.relation.ispartofJournal of Asian Earth Sciencesen_US
dc.subjectContinental Shelfen_US
dc.subjectDiatomsen_US
dc.subjectQuaternaryen_US
dc.subjectSea-Level Changesen_US
dc.subjectSedimentsen_US
dc.subjectSouth China Seaen_US
dc.titleDiatom preservation in an inner continental shelf borehole from the South China Seaen_US
dc.typeConference_Paperen_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/S1367-9120(99)00079-6en_US
dc.identifier.scopuseid_2-s2.0-0034112302en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034112302&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume18en_US
dc.identifier.issue4en_US
dc.identifier.spage471en_US
dc.identifier.epage488en_US
dc.identifier.isiWOS:000087002700007-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridYim, WWS=7007024728en_US
dc.identifier.scopusauthoridLi, J=7410055920en_US

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