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Coral mound development at the Campeche cold-water coral province, southern Gulf of Mexico: Implications of Antarctic Intermediate Water increased influence during interglacials

2017-10Journal article Restricted access
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dc.contributor.authorMatos, Lelia
dc.contributor.authorWienberg, Claudia
dc.contributor.authorTitschack, Juergen
dc.contributor.authorSchmiedl, Gerhard
dc.contributor.authorFrank, Norbert
dc.contributor.authorAbrantes, Fatima
dc.contributor.authorCunha, Marina R.
dc.contributor.authorHebbeln, Dierk
dc.date.accessioned2019-11-20T15:07:18Z
dc.date.available2019-11-20T15:07:18Z
dc.date.issued2017-10
dc.description.abstractCoral mounds formed by framework-forming scleractinian cold-water corals (CWC; mainly Lopheliapertusa) are a common seabed feature along the Atlantic continental margins. While coral mound areas in the NE Atlantic reveal a climate-dependent temporal pattern of CWC occurrence and mound aggradation that is related to distinct environmental conditions (e.g., productivity, water mass properties, hydrodynamics), the long-term development of CWC and coral mounds at the western side of the Atlantic is less well documented and understood. Here, we present a 260-kyr coral record from the recently described Campeche CWC province in the southern Gulf of Mexico, combined with a reconstruction of the paleo-environmental conditions for the last 140 kyr. Uranium-series dating of 26 coral samples reveals that CWC growth predominantly coincided with interglacial periods. Highest vertical mound aggradation rates of 34 to 40 cm kyr(-1) occurred during the Holocene. The reduced occurrence of CWC and the concurrent almost complete stagnation in mound aggradation during glacial periods could be linked to a diminished presence of Antarctic Intermediate Water at those intermediate depths in which the coral mounds occur. Such setting would have caused a less dynamic bottom current regime resulting in a reduced food supply to the CWC along the Campeche Bank.
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (DFG) [HE 3412/17-1]
dc.description.sponsorshipFundacao para a Ciencia e Tecnologia (FCT) [SFRH/BD/72149/2010]
dc.description.sponsorshipGLOMAR - the Bremen International Graduate School for Marine Sciences
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.margeo.2017.08.012
dc.identifier.issn0025-3227
dc.identifier.issn1872-6151
dc.identifier.urihttp://hdl.handle.net/10400.1/12975
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Science Bv
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDeep-Sea corals
dc.subjectRecent benthic foraminifera
dc.subjectCovered carbonate mound
dc.subjectNe Atlantic-Ocean
dc.subjectNortheast Atlantic
dc.subjectPorcupine seabight
dc.subjectGrowth history
dc.subjectBoundary-conditions
dc.subjectContinental-margin
dc.subjectLophelia-pertusa
dc.titleCoral mound development at the Campeche cold-water coral province, southern Gulf of Mexico: Implications of Antarctic Intermediate Water increased influence during interglacials
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F72149%2F2010/PT
oaire.citation.endPage65
oaire.citation.startPage53
oaire.citation.titleMarine Geology
oaire.citation.volume392
oaire.fundingStreamSFRH
person.familyNameAbrantes
person.givenNameFatima
person.identifier.ciencia-id021D-CA76-20D2
person.identifier.orcid0000-0002-9110-0212
person.identifier.ridB-5985-2013
person.identifier.scopus-author-id16030759200
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication45b2d36a-1a11-4b6c-81b3-47f657904207
relation.isAuthorOfPublication.latestForDiscovery45b2d36a-1a11-4b6c-81b3-47f657904207
relation.isProjectOfPublication2adec24a-f71b-4916-9a6c-3e34c2bccf6d
relation.isProjectOfPublication.latestForDiscovery2adec24a-f71b-4916-9a6c-3e34c2bccf6d

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