Formation of Glaciers (III)
Near the ìheadî of the glacier is the zone of accumulation
Near the ìfootî of the glacier is the zone of ablation (processes leading to melting)
If accumulation is greater than ablation then the glacier advances
If ablation is greater than accumulation then the glacier retreats
Glaciers transport large volumes of rock material (poorly sorted) in front, on top and at the base of the ice.