1. Precipitation (snow)
2. Fresh snow and ice starts to compact at the top of the glacier. Avalanches also occur at the top of the mountain.
3. Store – of ice
4. Flow – glacier moves downhill
5. Output – in the form of evaporated water or as melt water which runs off to flow into rivers / lakes etc…
Definitions:
- Moraine – material such as rocks and boulders that are transported by the glacier in the ice.
- Erratics – rocks and boulders transported by the glacier and deposited in an area of different rock. They can, therefore, easily be seen to be different from the rocks around them.