Subglacial Erosion: Mechanisms & Conditions
Part 1.
Directions:
Here, you should start to think about the contributing factors to glacial erosion. The
degree of erosion is dependent upon the substrate, ice movement, and subglacial
hydrology. Below, list and describe specific characteristics of the substrate and the
glacial hydrology that influences erosion.
Substrate (sediment or bedrock) influence on subglacial erosion:
1.
2.
3.
Hydrological influences on subglacial erosion:
1.
2.
Part 2.
Directions: Categorize factors influencing erosion (both whether erosion happens and
the rate at which it happens) into their association with warm- versus cold-based ice.
Some factors may be associated with both thermal regimes. You should list at least
eight factors.
Cold-based ice
(below pressure melting point)
Warm-based ice
(at pressure melting point)