Glaciers, Ice Ages, and Climate Flashcards
1
Q
what distinguishes glacial till from river deposits?
A
The deposits are huge boulders found in wide valleys, where as river deposits are small in similar size
2
Q
Who was the father of glaciology?
A
Louis Agassiz
3
Q
Where are the two primary ice sheets?
A
Antarctica and Greenland
4
Q
How much of earths landcover is currently covered by glaciers? How much was covered about 20,000 years ago?
A
10%
30%
5
Q
What are the three requirements necessary for glaciers to exist?
A
- cold
- accumulated snowfall
- gentle surface slope
