Soft-bed distributed subglacial sedimentology

The nature of the subglacial environment is a key part of glacier dynamics. Studies from modern glaciers have revealed there is a continuum in subglacial fluvial behaviour associated with a soft-bed, from channelised to distributed. How is this continuum preserved within the sedimentary record and what is the relationship between fluvioglacial sediments and flutes?  Classically eskers are associated with channelized drainage, whilst the sedimentary remains of ‘canals’, ‘subglacial meltwater corridors’ and murtoos may reflect the distributed system. Stratified lenses within till are common and have been given numerous interpretations, either reflecting preglacial sediments that have been incorporated into the till by deformation, or penecontemporaneous sedimentation with the till. We use data from instrumented modern glaciers and Quaternary sections to illustrate the nature and rate of subglacial behaviour associated with soft-bedded glaciers.