GM8.3Submarine Geomorphology of Glaciated Continental Shelves
|Convener: Stephen McCarron | Co-Conveners: Daniel Praeg , Dayton Dove|
The submarine geomorphology of glaciated continental shelves is increasingly recognised to provide detailed signatures of glacial processes and ice sheet dynamics. Well defined landform assemblages on the shelves of NW Europe, eastern Canada and Antarctica, although generally still poorly constrained in terms of geochronology, appear to record sectoral ice streaming and millennial-scale shifts in dynamical behaviour during the last cold stage and provide a large-scale framework for more detailed investigations. This session aims to bring together researchers working on multifaceted datasets (single beam and multibeam bathymetry, 2D/3D seismic reflection data, sediment cores) to reconstruct landform creating processes in subglacial to ice marginal environments that are now marine, and their implications for glacial history of these regions. A clearer picture of the dynamics involved in ice inundation of continental shelves serves as a critical test of dynamic ice sheet models.