Cold Environments - Definitions

?
Accumulation
The input of snow and ice into ther glacial system (mainly snow)
1 of 22
Ablation
The output of water from a glacier
2 of 22
Glacial Budget
The balance between accumulation and ablation over a year
3 of 22
Equilibrium Point
The place where accumulation and ablation are equal
4 of 22
Supraglacial material
Material carried on top of the glacier
5 of 22
Englacial
Material carried inside the body of the glacier
6 of 22
Subglacial
Material moved along the base of the glacier
7 of 22
Till/boulder clay
The unsorted mixture of material deposited by the glacier
8 of 22
Lodgement till
Material spread onto the valley floor beneath the ice, by a moving glacier
9 of 22
Ablation till
Material dropped as a glacier melts. Close to the snout (where most ablation occurs)
10 of 22
Arete
Steep-sided ridge
11 of 22
Pyramidal peak
Pointed mountain peak with at least 3 sides
12 of 22
Glacial trough (U-shaped valley)
Steep-sided valleys with flat bottoms
13 of 22
Hanging valleys
Waterfalls into the main glacier from tributary glaciers
14 of 22
Truncated spurs
Ridges of land that have been cut off
15 of 22
Valley steps
Steps within the glacial trough
16 of 22
Tarns
Lakes that form in corries after the glacier has retreated
17 of 22
Ribbon lakes
Long, thin lakes that form in the valley once the glacier has retreated
18 of 22
Fjords
Long, deep inlets
19 of 22
Roche moutonnee
Resistant (hard) mass of rock on the valley floor
20 of 22
Frost contraction
When cracks form in the permafrost due to low temperatures causing the ground to contract.
21 of 22
Talik
Unfrozen ground
22 of 22

Other cards in this set

Card 2

Front

The output of water from a glacier

Back

Ablation

Card 3

Front

The balance between accumulation and ablation over a year

Back

Preview of the back of card 3

Card 4

Front

The place where accumulation and ablation are equal

Back

Preview of the back of card 4

Card 5

Front

Material carried on top of the glacier

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Cold Environments resources »