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dc.contributor.authorKrueger, Erica Tereseen
dc.contributor.authorCrowley, Quentinen
dc.contributor.authorKrueger, Ericaen
dc.date.accessioned2024-05-07T05:47:04Z
dc.date.available2024-05-07T05:47:04Z
dc.date.issued2024en
dc.date.submitted2024en
dc.identifier.citationKrueger ET, Mouchi V, Monteys X, McCarron S, Lim A, Crowley QG, Development and physical characteristics of the Irish shelf-edge Macnas Mounds, Porcupine Seabight, NE Atlantic, International Journal of Earth Sciences (Geologische Rundschau), 113, 2024, 861 - 874en
dc.identifier.otherYen
dc.descriptionPUBLISHEDen
dc.description.abstractModern cold-water corals (CWCs) occur in a wide range of water depths, with Desmophyllum pertusum being one of the most common species. Pleistocene, Holocene, and modern coral mound formation by living CWC reefs have previously been described in the Porcupine Seabight from water depths greater than 700 m in the vicinity of the transitional zone between the Eastern North Atlantic Water and Mediterranean Outflow Water. Here we document occurrence of fossil corals retrieved from two cores at 370 m depth in the Macnas Mounds, a relatively shallow occurrence for mounds on the Irish shelf-edge. Both cores feature D. pertusum restricted to the upper two metres, immediately overlying an erosive surface and a coeval major down-core change in grain size from sand to mud. Radiocarbon dating of coral specimens indicates the CWC mounds initiated 7.82 Cal ky BP. Our study unequivocally documents the existence of Holocene shelf-edge coral mounds in the eastern Porcupine Seabight and highlights the possibility of other occurrences of CWCs in similar settings elsewhere in the northeast Atlantic. Given that no living CWCs were encountered in the study area, we suggest that the area previously experienced more favourable conditions for CWC mound initiation and development along the shelf-edge margin, possibly due to differing conditions in the European Slope Current which flows northward along the continental slope from south of the Porcupine Bank to the Faroe-Shetland Channel.en
dc.description.sponsorshipThis publication has emanated from research con- ducted in part by a grant from Science Foundation Ireland under Grant numbers 13/RC/2092 and 13/RC/2092_P2, and the Trinity College Dublin Department of Geology Julian Boldy Bursary. This research was further made possible by the Earth and Natural Sciences (ENS) PhD programme, funded under the Programme for Research in Third- Level Institutions Cycle-5 (PRTLI-5) and co-funded under the Euro- pean Regional Development Fund. Shiptime for CE20011 was funded under the Marine Institute’s 2020 National Grant-aided Shiptime Pro- gramme. This research was carried out under the Sea Change strategy with the support of the Marine Institute and the Marine Research Sub- program of the National Development Plan 2007–2013.en
dc.format.extent861en
dc.format.extent874en
dc.language.isoenen
dc.relation.ispartofseriesInternational Journal of Earth Sciences (Geologische Rundschau)en
dc.relation.ispartofseries113en
dc.rightsYen
dc.subjectResearch Subject Categories::NATURAL SCIENCESen
dc.subjectCold-water coralen
dc.subjectDesmophyllum pertusumen
dc.subjectRadiocarbon datingen
dc.subjectPorcupine Seabighten
dc.subjectMacnas Moundsen
dc.titleDevelopment and physical characteristics of the Irish shelf-edge Macnas Mounds, Porcupine Seabight, NE Atlanticen
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/kruegereen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/crowleyqen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/ekruegeren
dc.identifier.rssinternalid265647en
dc.identifier.doihttps://doi.org/10.1007/s00531-024-02402-0en
dc.rights.ecaccessrightsopenAccess
dc.subject.TCDThemeSmart & Sustainable Planeten
dc.subject.TCDTagCold-water coralen
dc.subject.TCDTagMacnas Moundsen
dc.subject.TCDTagMarine Environmenten
dc.subject.TCDTagMarine and Ocean Sciencesen
dc.subject.TCDTagNORTHEAST ATLANTICen
dc.subject.TCDTagPorcupine Seabighten
dc.subject.TCDTagRadiocarbon Datingen
dc.subject.darat_impairmentOtheren
dc.status.accessibleNen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.contributor.sponsorGrantNumber13/RC/2092_P2en
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.contributor.sponsorGrantNumber13/RC/2092en
dc.identifier.urihttp://hdl.handle.net/2262/108343


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