dc.contributor.author | Krueger, Erica Terese | en |
dc.contributor.author | Crowley, Quentin | en |
dc.contributor.author | Krueger, Erica | en |
dc.date.accessioned | 2024-05-07T05:47:04Z | |
dc.date.available | 2024-05-07T05:47:04Z | |
dc.date.issued | 2024 | en |
dc.date.submitted | 2024 | en |
dc.identifier.citation | Krueger 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 - 874 | en |
dc.identifier.other | Y | en |
dc.description | PUBLISHED | en |
dc.description.abstract | Modern 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.sponsorship | This 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.extent | 861 | en |
dc.format.extent | 874 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | International Journal of Earth Sciences (Geologische Rundschau) | en |
dc.relation.ispartofseries | 113 | en |
dc.rights | Y | en |
dc.subject | Research Subject Categories::NATURAL SCIENCES | en |
dc.subject | Cold-water coral | en |
dc.subject | Desmophyllum pertusum | en |
dc.subject | Radiocarbon dating | en |
dc.subject | Porcupine Seabight | en |
dc.subject | Macnas Mounds | en |
dc.title | Development and physical characteristics of the Irish shelf-edge Macnas Mounds, Porcupine Seabight, NE Atlantic | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/kruegere | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/crowleyq | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/ekrueger | en |
dc.identifier.rssinternalid | 265647 | en |
dc.identifier.doi | https://doi.org/10.1007/s00531-024-02402-0 | en |
dc.rights.ecaccessrights | openAccess | |
dc.subject.TCDTheme | Smart & Sustainable Planet | en |
dc.subject.TCDTag | Cold-water coral | en |
dc.subject.TCDTag | Macnas Mounds | en |
dc.subject.TCDTag | Marine Environment | en |
dc.subject.TCDTag | Marine and Ocean Sciences | en |
dc.subject.TCDTag | NORTHEAST ATLANTIC | en |
dc.subject.TCDTag | Porcupine Seabight | en |
dc.subject.TCDTag | Radiocarbon Dating | en |
dc.subject.darat_impairment | Other | en |
dc.status.accessible | N | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 13/RC/2092_P2 | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 13/RC/2092 | en |
dc.identifier.uri | http://hdl.handle.net/2262/108343 | |