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Article: Upper Paleocene radiolarians from DSDP Sites 549 and 550, Goban Spur, NE Atlantic

TitleUpper Paleocene radiolarians from DSDP Sites 549 and 550, Goban Spur, NE Atlantic
Authors
KeywordsBiotic response
NE Atlantic
PETM
Radiolarians
Upper Paleocene
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/wps/find/journaldescription.cws_home/706740/description#description
Citation
Palaeoworld, 2011, v. 20 n. 2-3, p. 218-231 How to Cite?
AbstractUpper Paleocene-lower Eocene sequences of mainly pelagic sediments in DSDP Sites 549 and 550 of Goban Spur, NE Atlantic, representing time periods of 10 and 6. m.y. respectively, were examined to investigate the biotic response of radiolarians to the PETM. The preservation of radiolarians in the lower Eocene sequences for both sites is poor. Upper Paleocene radiolarian assemblages, representing a time interval of ~59-56. Ma at Site 549 and a much shorter period at Site 550, are generally moderately well-preserved. Fifty-four species were identified. Four species occur significantly earlier in the middle high latitude NE Atlantic than in New Zealand, where the sudden appearance during the PETM has been taken as evidence of global pole-ward migration of warm-water radiolarians. Available model shows that the Goban Spur area should belong to the subpolar surface ocean gyre in the early Paleogene. Thus, our investigation questions the validity of the previously used index species of subtropical warm water masses. High-latitude offshore sections across the P/E boundary with well preserved radiolarians are needed to test the hypothesis of pole-ward migration of warm-water radiolarians during this geologically transient global warming period. © 2011 Elsevier Ltd and Nanjing Institute of Geology and Palaeontology, CAS.
Persistent Identifierhttp://hdl.handle.net/10722/151322
ISSN
2015 Impact Factor: 0.939
2015 SCImago Journal Rankings: 0.396
References

 

DC FieldValueLanguage
dc.contributor.authorLiu, Jen_HK
dc.contributor.authorAitchison, JCen_HK
dc.contributor.authorAli, JRen_HK
dc.date.accessioned2012-06-26T06:20:36Z-
dc.date.available2012-06-26T06:20:36Z-
dc.date.issued2011en_HK
dc.identifier.citationPalaeoworld, 2011, v. 20 n. 2-3, p. 218-231en_HK
dc.identifier.issn1871-174Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/151322-
dc.description.abstractUpper Paleocene-lower Eocene sequences of mainly pelagic sediments in DSDP Sites 549 and 550 of Goban Spur, NE Atlantic, representing time periods of 10 and 6. m.y. respectively, were examined to investigate the biotic response of radiolarians to the PETM. The preservation of radiolarians in the lower Eocene sequences for both sites is poor. Upper Paleocene radiolarian assemblages, representing a time interval of ~59-56. Ma at Site 549 and a much shorter period at Site 550, are generally moderately well-preserved. Fifty-four species were identified. Four species occur significantly earlier in the middle high latitude NE Atlantic than in New Zealand, where the sudden appearance during the PETM has been taken as evidence of global pole-ward migration of warm-water radiolarians. Available model shows that the Goban Spur area should belong to the subpolar surface ocean gyre in the early Paleogene. Thus, our investigation questions the validity of the previously used index species of subtropical warm water masses. High-latitude offshore sections across the P/E boundary with well preserved radiolarians are needed to test the hypothesis of pole-ward migration of warm-water radiolarians during this geologically transient global warming period. © 2011 Elsevier Ltd and Nanjing Institute of Geology and Palaeontology, CAS.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/wps/find/journaldescription.cws_home/706740/description#descriptionen_HK
dc.relation.ispartofPalaeoworlden_HK
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Palaeoworld. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Palaeoworld, 2011, v. 20 n. 2-3, p. 218-231. DOI: 10.1016/j.palwor.2011.02.002-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectBiotic responseen_HK
dc.subjectNE Atlanticen_HK
dc.subjectPETMen_HK
dc.subjectRadiolariansen_HK
dc.subjectUpper Paleoceneen_HK
dc.titleUpper Paleocene radiolarians from DSDP Sites 549 and 550, Goban Spur, NE Atlanticen_HK
dc.typeArticleen_HK
dc.identifier.emailAitchison, JC: jona@hku.hken_HK
dc.identifier.emailAli, JR: jrali@hku.hken_HK
dc.identifier.authorityAitchison, JC=rp00658en_HK
dc.identifier.authorityAli, JR=rp00659en_HK
dc.description.naturepostprinten_US
dc.identifier.doi10.1016/j.palwor.2011.02.002en_HK
dc.identifier.scopuseid_2-s2.0-80052272701en_HK
dc.identifier.hkuros198647-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052272701&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue2-3en_HK
dc.identifier.spage218en_HK
dc.identifier.epage231en_HK
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridLiu, J=49461398400en_HK
dc.identifier.scopusauthoridAitchison, JC=7102533858en_HK
dc.identifier.scopusauthoridAli, JR=7102266465en_HK

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