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RESEARCH |
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Paleo-ice sheet dynamics
The style of decay of past ice sheets Processes taking place at the glacier bed impact ice sheet properties (e.g., thickness, geometry, debris content), and thus set important preconditions that affect the rate, style and geometry of ice sheet decay. Glacial landform associations also suggest particular styles of decay. A selection of our more recent work in this area has focused on the following topics: 2) The paleoenvironmental and glacio-isostatic record contained in the landforms and sediments associated with Cordilleran ice-dammed lakes [Lesemann and Brennand 2007; Johnsen and Brennand 2006; Johnsen and Brennand 2004] 3) A new conceptual model for CIS decay following subglacial lake drainage [Lesemann and Brennand 2009; Lesemann and Brennand 2003] 4) Building a deglacial chronology for the Fraser and Thompson plateaus, BC: a test of our new conceptual model of CIS decay (a new initiative with Perkins and Lian)
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