The British Isles have been the focus of a number of recent modelling studies owing to the existence of a high-quality sea-level dataset for this region and the suitability of these data for constraining shallow earth viscosity structure, local to regional ice sheet histories and the magnitude/ timing of global meltwater signals. Until recently, the paucity of both glaciological and relative sea-level (RSL) data from Ireland has meant that the majority of these glacial isostatic adjustment (GIA) modelling studies of the British Isles region have tended to concentrate on reconstructing ice cover over Britain. However, the recent development of a sea-level database for Ireland along with emergence of new glaciological data on the spatial extent, thickness and deglacial chronology of the Irish Ice Sheet means it is now possible to revisit this region of the British Isles. Here, we employ these new data to constrain the evolution of the Irish Ice Sheet. We find that in order to reconcile differences between model predictions and RSL evidence, a thick, spatially extensive ice sheet of similar to 600-700 m over much of north and central Ireland is required at the LGM with very rapid deglaciation after 21 k cal. yr BP. Copyright (C) 2007 John Wiley & Sons, Ltd.
机构:
Univ British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, CanadaUniv British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, Canada
Letham, Bryn
Martindale, Andrew
论文数: 0引用数: 0
h-index: 0
机构:
Univ British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, CanadaUniv British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, Canada
Martindale, Andrew
Macdonald, Rebecca
论文数: 0引用数: 0
h-index: 0
机构:
Univ British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, CanadaUniv British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, Canada
Macdonald, Rebecca
Guiry, Eric
论文数: 0引用数: 0
h-index: 0
机构:
Univ British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, CanadaUniv British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, Canada
Guiry, Eric
Jones, Jacob
论文数: 0引用数: 0
h-index: 0
机构:
Univ British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, CanadaUniv British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, Canada
Jones, Jacob
Ames, Kenneth M.
论文数: 0引用数: 0
h-index: 0
机构:
Portland State Univ, Dept Anthropol, POB 751, Portland, OR 97207 USAUniv British Columbia, Dept Anthropol, 6303 NW Marine Dr, Vancouver, BC V6K 1Z1, Canada