CR4.10/GM10.3 Subglacial landform genesis and (palaeo) glaciological significance (co-organized)

Convener: Jeremy Ely  | Co-Conveners: John K. Hillier , Tracy Brennand , Anna Hughes , John Maclachlan

Posters  / Attendance Fri, 28 Apr, 10:30–12:00  / Hall X5

Subglacial landforms and terrains can provide us with information regarding subglacial conditions and processes that control glacier dynamics, and in deglaciated areas provide us with key information regarding palaeo-ice sheet behaviour. Subglacial bedforms (e.g. drumlins, mega-scale glacial lineations and subglacial ribs) are abundant on deglaciated terrain and have been imaged beneath contemporary ice sheets, suggesting that they are key components of bed roughness. Subglacial-hydrological systems are recorded by a suite of meltwater-related landforms (e.g. eskers, channels, curvilineations). Yet consensus regarding the formation of subglacial landforms is yet to be reached, hindering their utility for understanding both subglacial processes and reconstructing palaeo-ice masses. Insight has been gained from sedimentology, morphometric analysis and numerical modelling, but the three are rarely considered together.

We invite scientific contributions that include, but are not limited to: i) morphometric inventories of subglacial landforms; ii) subglacial sediment-landform associations; iii) numerical modelling of subglacial bedforms; iv) methodological developments (e.g. mapping methodologies; sedimentological techniques); v) the use of subglacial landforms in palaeoglaciological reconstructions; and vi) observations from contemporary subglacial environments.

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