Glaciers Flashcards
1
Q
What are some erosion techniques glaciers use?
A
- Plucking
- Abrasion
- Freeze-thaw
- Rotational Slip (Rotational flow)
2
Q
Name glacial landforms
A
- Corries
- Aretes
- Pyramidal peaks
- Truncated spurs
- U shaped valleys (Glacial Troughs)
- Ribbon lakes
- Hanging valleys
- Moraine
- Roche moutone
- Drumlins
3
Q
How do glaciers transport and deposit Till?
A
- Material falls down the bergshrund crevas and is frozen in the glacier, carried on its surface, or pushed in front of it.
- When the ice carrying the material melts, the material is deposited forming landforms (moraines, drumlins)
4
Q
What are the different types of moraine?
A
- Lateral moraine
- Medial moraine
- Terminal moraine
- Ressitional moraine
- Ground moraine
5
Q
What is a drumlin?
A
- They are round, blunt and steep at the upstream end
- They are tapered, pointed and gently sloping at the downstream end
