Periglacial processes Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

The processes that occur in periglacial climates are highly dependant on what?

A

The processes that occur in periglacial climates are highly dependant on cycles of freezing and thawing, which give rise to a very distinctive geomorphology.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the dominant periglacial processes associated with?

A

The dominant periglacial processes are associated with permafrost and the thawing and movement of the active layer.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

State some of the periglacial processes?

A
  • The contraction and cracking of rapidly freezing soils
  • The migration of surface water to the ‘freezing front’
  • The mass movement of the active layer downslope
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Give some processes which are also responsible for the formation of periglacial landforms but are not confined to periglacial environments?

A
  • Frost shattering
  • Fluvial action
  • The action of wind
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Give some processes that are unique to periglacial environments?

A
  • The development of thermal contraction cracks
  • The formation of permafrost and frost heave
How well did you know this?
1
Not at all
2
3
4
5
Perfectly