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    Quaternary ice sheet limits on the continental shelf west of Ireland


    McCarron, Stephen and Saqab, Muhammad Mudasar and Craven, Kieran and Praeg, Daniel and Thébaudeau, Benjamin and Monteys, Xavier (2019) Quaternary ice sheet limits on the continental shelf west of Ireland. In: 20th Congress of the International Union for Quaternary Research (INQUA), 24-31 July 2019, Dublin, Ireland.

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    Abstract

    Recent investigations have shown that the continental shelf west of Ireland contains sedimentary landforms recording occupation by grounded, lobate ice sheet margins that extended from Ireland during at least the last glacial cycle. This paper reviews some of the offshore evidence of past glacial events available from high-resolution bathymetry, 2D/3D seismic datasets (Fig. 1), and shallow sediment cores providing information on the sedimentology, rheology and age of glacigenic stratigraphic units. The available data suggest that the continental shelf has been repeatedly occupied by tidewater ice margins characterised by ice streaming, possibly since the mid-Pleistocene transition. The offshore record provides as yet incomplete information on the extent and timing of glaciation from multiple centres of dispersal in Ireland. The dynamics of former ice sheets in Ireland, downwind of the climatically important central North Atlantic region, makes them of wider interest in the study of partially marine based ice sheet-ocean interactions in rapidly changing environments.

    Item Type: Conference or Workshop Item (Other)
    Keywords: Quaternary ice sheet limits; continental shelf; west of Ireland;
    Academic Unit: Faculty of Social Sciences > Geography
    Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
    Item ID: 10978
    Depositing User: Dr. Stephen McCarron
    Date Deposited: 26 Aug 2019 13:46
    Refereed: No
    URI:

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