Investigation of an elevated sands unit at Tralispean Bay, South-West Ireland – potential high-energy marine event

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dc.contributor.authorCronin, Abigail
dc.contributor.authorDevoy, Robert R. N.
dc.contributor.authorBartlett, Darius J.
dc.contributor.authorNuyts, Siegmund
dc.contributor.authorO'Dwyer, Barry
dc.contributor.funderUniversity College Corken
dc.date.accessioned2019-02-14T10:20:40Z
dc.date.available2019-02-14T10:20:40Z
dc.date.issued2018-11
dc.description.abstractA sequence of high elevation sands containing both broken and whole marine shells, as well as many mega-sized, raft-shaped boulders (1-3m across) has been discovered at Tralispean Bay, West Cork, Ireland. Ground-Penetrating Radar (GPR), ground surveying and differential GPS (dGPS) show that the sediments cover an area of c.0.75ha, reaching a maximum height of c.+18.5m ODM, with interconnected pockets of sand varying in thickness of up to 1m. Coring, lithostratigraphic study, granulometry, organics loss-on-ignition and carbonate content analyses, together with examination of micro- and macrofossils, indicate that the shelly sands were deposited rapidly, under high energy conditions. Informal interviews with local residents, as well as the extent of the sands, suggest that the deposit is not the result of human actions. Elevations reached by the sediments, the presence of mega-boulders, and other indicators make it unlikely that these sediments arose from storm activity. It is possible that they have been deposited as the result of a tsunami. The radiocarbon (AMS) date obtained places the age of such an event at 1465 AD (Cal BP 485). At present, no clear historical record has been identified of any tsunami impacts affecting the south coast of Ireland other than the Lisbon earthquake of 1755.en
dc.description.sponsorshipUniversity College Cork (Department of Geography, Radiocarbon dating) ; Murphy’s Surveys (GPR equipment and technical support)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCronin, A., Devoy, R., Bartlett, D., Nuyts, S. and Dwyer, B. (2019) 'Investigation of an Elevated Sands Unit at Tralispean Bay, South-West Ireland – Potential High Energy Marine Event', Irish Geography, 51(2). DOI: 10.2014/igj.v51i2.1373en
dc.identifier.doi10.2014/igj.v51i2.1373
dc.identifier.endpage32en
dc.identifier.issn0075-0778
dc.identifier.issn1939-4055
dc.identifier.issued2en
dc.identifier.journaltitleIrish Geographyen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/7493
dc.identifier.volume51en
dc.language.isoenen
dc.publisherGeographical Society of Ireland GSIen
dc.relation.urihttp://irishgeography.ie/index.php/irishgeography/article/view/1373
dc.rights© 2018 Geographical Society of Ireland licensed under a Creative Commons Attribution License, https://creativecommons.org/licenses/by/3.0/en
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/en
dc.subjectTsunamien
dc.subjectSedimentsen
dc.subjectIrelanden
dc.subjectLisbonen
dc.subjectStorm surgeen
dc.subjectCoastal processesen
dc.titleInvestigation of an elevated sands unit at Tralispean Bay, South-West Ireland – potential high-energy marine eventen
dc.typeArticle (peer-reviewed)en
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