ABSTRACT
This chapter explains the patterns of glacial erosion and deposition around Cumberland Sound, Frobisher Bay and Hudson Strait, and the location of ice streams in the Eastern Canadian Arctic. The evidence around and within some of the major sounds and troughs (e.g. Cumberland Sound, Frobisher Bay, and Hudson Strait) is examined for their origins and analyzed from Landsat imagery, erratics, and striations for the location of discrete ice streams in this section of the Laurentide Ice Sheet. The chapter deals with analysis of role and importance of glacial erosion on the size and form of these troughs based on field mapping, bathymetry, seismic stratigraphy, and bedrock geology. A major problem in ice sheet reconstructions is that each reconstruction might merely represent a ‘snapshot’ in time and that as the ice sheets wax and wane several configurations occur. An ice stream is defined, or rather ice streams are reconstructed on the basis of observable glacial geological evidence.
