Flacier Flashcards
List the processes of Glacier Erosion
Plucking and abrasion
(Draw a diagram of plucking and abrasion )
Describe the features of a u shaped valley
Steep sides, has a crater
(Draw a diagram of a glacial cirque)
Name the features/landforms of glacier erosion
- Glaciated valley
- Cirques
3.tarn
4 prymindsl peak
5 Arète - Paternoster lakes
- Trunavated spur
8 hanging valley
Where are cirques found
They are found high in the mountains because the temperatures are colder up there
(Draw at least 3 diagrams of features of glacial erosion)
What is glacier transportation
Glacier transportation refers to the process which glacier move and transport materials such as rock,deberis (moraine )
What are the four types of moraine
- Lateral moraine
- Medial moraine
- Ground moraine
- Frontal/terminal moraine
Explain plucking
As a glacier moves there is friction. Tween the glacier and the ground beneath it. This friction causes the bottom of the glacier to melt. The meltwater makes its way into cracks in the rocks underneath the rocks
Explain abrasion
As the glacier moves,the rock attached to it scratch and scrape the surface rock underneath and on the side of the valley. The scratch marks left behind on rocks are called striations. These marks tell us the direction the glacier moved
What is a cirque
A cirque is a base shaped hollow in a mountain. It looks like an armchair. it has three steep sides and often contains a lake. A cirque was the birthplace of a glacier
How are cirques formed
A cirque is formed when snow accumulates (builds up) in a hollow high up on a mountain. The snow is compressed to form ice
What is an aretes
An Aries is a narrow steep sided ridge between two cirques
How are arêtes formed
An Aries occur when two cirques form next to each other on a mountain. The ground between two cirques erodes backwards this leaves a narrow ridge called an artes between two cirques
