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A southern Portuguese Margin Perspective of Marine Isotope Stage 47—An interglacial in the 41 kyr World

2022Journal article Open access
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dc.contributor.authorVoelker, Antje
dc.contributor.authorRodrigues, Teresa
dc.contributor.authorTrotta, Samanta
dc.contributor.authorMarino, Maria
dc.contributor.authorKuhnert, Henning
dc.date.accessioned2023-01-17T10:25:23Z
dc.date.available2023-01-17T10:25:23Z
dc.date.issued2022
dc.description.abstractIn order to better understand interglacial climate variability within the 41 kyr world, we produced high-resolution climate records for interglacial Marine Isotope Stage (MIS) 47 (1424-1452 ka) at IODP Site U1387 (36 degrees 48 ' N, 7 degrees 43 ' W) on the southern Portuguese margin. Using benthic and planktonic foraminifera stable isotope records, U-37(k') sea-surface temperature (SST), and plankton assemblage data we investigated Mediterranean Outflow Water (MOW) and surface water conditions. The MOW-level records indicate a poorly ventilated and sluggish bottom current during the MIS 48/MIS 47 transition in association with the insolation maximum, whereas a well-ventilated MOW formed a contourite layer during the second insolation maximum. The benthic delta O-18 record shows a fairly abrupt change during the deglaciation of MIS 48, while the surface waters experienced a terminal stadial event that was associated with initial cooling and freshening followed by stepwise warming until interglacial SST was reached at 1450 ka. Interglacial conditions with SST of 24 degrees C or higher persisted until 1427 ka, although warm SST prevailed into MIS 46. The persistent and prolonged warmth is attributed to a northward expansion of the subtropical gyre during MIS 47 as reflected by the dominance of subtropical-tropical planktonic foraminifera species and the presence of warm water coccolithophores taxa.pt_PT
dc.description.sponsorshipLA/P/0101/2020
dc.description.sponsorshipLA/P/0101/2020
dc.description.sponsorshipPOCI-01-0145-FEDER-022157
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/atmos13091378pt_PT
dc.identifier.eissn2073-4433
dc.identifier.urihttp://hdl.handle.net/10400.1/18825
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationFeatures and lessons from Past Interglacials ? warm periods ? over the last 1.5 Ma
dc.relationSurface and Mediterranean Outflow Water Dynamics in the Gulf of Cadiz during the Pleistocene
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectInterglacial climatept_PT
dc.subjectIODP Site U1387pt_PT
dc.subjectSea surface temperaturespt_PT
dc.subjectTerminal stadial evenpt_PT
dc.subjectSubtropical gyrept_PT
dc.subjectMediterranean Outflow Waterpt_PT
dc.subjectPlanktonic foraminiferapt_PT
dc.subjectCoccolithophorespt_PT
dc.subjectStable isotopespt_PT
dc.titleA southern Portuguese Margin Perspective of Marine Isotope Stage 47—An interglacial in the 41 kyr Worldpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleFeatures and lessons from Past Interglacials ? warm periods ? over the last 1.5 Ma
oaire.awardTitleSurface and Mediterranean Outflow Water Dynamics in the Gulf of Cadiz during the Pleistocene
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FCTA-GEO%2F29897%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR-PRO%2F3761%2F2012/PT
oaire.citation.issue9pt_PT
oaire.citation.startPage1378pt_PT
oaire.citation.titleAtmospherept_PT
oaire.citation.volume13pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream9471 - RIDTI
oaire.fundingStream3599-PPCDT
person.familyNameVoelker
person.familyNameRodrigues
person.givenNameAntje
person.givenNameTeresa
person.identifier2315310
person.identifier.ciencia-idC11E-D8E6-CDFA
person.identifier.ciencia-idEC18-2390-9594
person.identifier.orcid0000-0001-6465-6023
person.identifier.orcid0000-0001-7811-7506
person.identifier.ridC-5427-2012
person.identifier.ridG-2912-2013
person.identifier.scopus-author-id8784446000
person.identifier.scopus-author-id7004330274
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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