Burial of basal ice

The massive ice (Fig. 64.2C) comprises both buried basal ice and intrasedimental ice (Murton et al., 2005). Burial of basal ice in this region occurred by three processes:

1 glacial thrusting and shearing of frozen sediment (inferred where frozen glaciotectonite overlies basal ice);

2 downward melt of ice previously exposed at the ground surface (inferred where supraglacial melt-out till overlies basal ice);

3 deposition of aeolian, glaciofluvial or lacustrine sediments above basal ice.

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