Glaciated landscapes Flashcards
How many glacial and interglacial periods are there
4
How hot can interglacial periods get
30-40 degrees
how cold can glacial periods get
10 to -25 degrees
Name some characteristics about the Antartica
Continent
Not a country
Desert (very low precipitation)
Very little wild life (penguins are there)
Covered in ice sheets and glaciers
What are glaciers
A massive amount of pushed down/compressed snow
How do glaciers form
They from near a freezing point or large amount of snowfall in winter months
What are the 2 types of glaciers
Alpine glaciers
continental sheets
What is freeze thaw weathering
When water gets into cracks of rocks
the water freezes and the rocks expand breaking the rock
What are the 2 zones of a glacier
The zone of accumalation
The zone of ablation
What are the 2 ways glaciers erode the landscape
Plucking and abrasion
Whats the end of a glacier
a snout
What is the name for debris made by a glacier
moraine
What is a corrie
armchair shaped hollow, eroded glaciers
What is an arete
A knife like slope between 2 corries
What is tarn
the water gathered in a corrie
