The provenance of Middle Jurassic to Cretaceous sediments in the Irish and Celtic Sea Basins: tectonic and environmental controls on sediment sourcing

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dc.contributor.authorMcCarthy, Odhrán
dc.contributor.authorFairey, Brenton
dc.contributor.authorMeere, Patrick
dc.contributor.authorChew, David
dc.contributor.authorKerrison, Aidan
dc.contributor.authorWray, David
dc.contributor.authorHofmann, Mandy
dc.contributor.authorGärtner, Andreas
dc.contributor.authorSonntag, Benita-Lisette
dc.contributor.authorLinnemann, Ulf
dc.contributor.authorKuiper, Klaudia F.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEuropean Regional Development Funden
dc.contributor.funderPipco RSG, Irelanden
dc.date.accessioned2023-02-28T16:45:48Z
dc.date.available2023-02-28T16:45:48Z
dc.date.issued2021-04-23
dc.description.abstractThe Jurassic and Cretaceous sedimentary infill of the Irish and Celtic Sea Basins is intimately associated with the breakup of the supercontinent Pangea, and the opening of the Atlantic margin. Previous basin studies have constrained tectonism, basin uplift and sediment composition, but sediment provenance and routing have not received detailed consideration. Current hypotheses for basin infill suggest localized sediment sourcing throughout the Jurassic and Cretaceous, despite a dynamic tectonic and palaeoenvironmental history spanning more than 100 million years. We present detrital zircon, white mica and apatite geochronology alongside heavy mineral data from five basins. Findings reveal that basin infill derived predominantly from distal sources with lesser periods of local sourcing. We deduce that tectonically induced marine transgression and regression events had a first-order control on distal v. proximal sedimentary sourcing. Additionally, tectonism which uplifted the Fastnet Basin region during the Middle–Late Jurassic recycled basin sediments into the connected Celtic and Irish Sea Basins. Detrital geochronology and heavy mineral evidence support three distinct provenance switches throughout the Jurassic and Cretaceous in these basins. Overall an integrated multi-proxy provenance approach provides novel insights to tectonic and environmental controls on basin infill as demonstrated in the Irish and Celtic Sea Basins.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleidjgs2020-247en
dc.identifier.citationMcCarthy, O., Fairey, B., Meere, P., Chew, D., Kerrison, A., Wray, D., Hofmann, M., Gärtner, A., Sonntag, B.-L., Linnemann, U. and Kuiper, K. F. (2021) ‘The provenance of Middle Jurassic to Cretaceous sediments in the Irish and Celtic Sea Basins: tectonic and environmental controls on sediment sourcing’, Journal of the Geological Society, 178(5), jgs2020-247. doi: 10.1144/jgs2020-247en
dc.identifier.doi10.1144/jgs2020-247en
dc.identifier.eissn2041-479X
dc.identifier.issn0016-7649
dc.identifier.issued5en
dc.identifier.journaltitleJournal of the Geological Societyen
dc.identifier.urihttps://hdl.handle.net/10468/14262
dc.identifier.volume178en
dc.language.isoenen
dc.publisherGeological Society of Londonen
dc.relation.ispartofThe Lyell Collection
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/13/RC/2092/IE/Irish Centre for Research in Applied Geosciences (iCRAG)/en
dc.relation.urihttps://doi.org/10.6084/m9.figshare.c.5343657.v2
dc.rights© 2021, Geological Society of London.en
dc.subjectProvenanceen
dc.subjectNorth Celtic Sea Basinen
dc.subjectSaint George’s Channel Basinen
dc.subjectCimmerian Tectonismen
dc.subjectU-Pb datingen
dc.subjectAr-Ar datingen
dc.subjectHeavy Mineral Analysisen
dc.titleThe provenance of Middle Jurassic to Cretaceous sediments in the Irish and Celtic Sea Basins: tectonic and environmental controls on sediment sourcingen
dc.typeArticle (peer-reviewed)en
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