Periglacial Flashcards
1
Q
What is continuous permafrost?
A
It’s found in the coldest region
There is hardly any melting here
2
Q
What is discontious permafrost?
A
Occurs in regions that are warmer
The ground isn’t frozen to such great depths
Small vegetation can grow here
3
Q
What is sporadic permafrost?
A
Found in areas where temps are around/below freezing
Only in areas where the climate is cold enough to prevent thawing
Vegetation can grow here
4
Q
What is talik?
A
Unfrozen soil and rock
5
Q
What is solifluction? (Mass movement)
A
When temps in the summer rise and melts a large amounts of ice. The water can’t drain way due to the impermaeble layer of still frozen ground. Water reduces friction between soil particles.
On slopes with a 2°, the saturated layer can move downslope
