Glacial Erosion Flashcards
What are the two kinds of glaciers? How are they different?
Continental & Valley Glacier. Continental glaciers cover much of a continent or small island. Valley glaciers form when snow and ice build up high in a mountain valley.
How do glaciers form?
Glaciers form in an area where more snow falls than melts.
How do continental glaciers move?
Continental glaciers flow in all directions.
How do valley glaciers move?
Valley glaciers move downhill.
By what processes do glaciers erode the land?
plucking and abrasion
When do glaciers deposit sediment?
Glaciers deposit sediment when it melts.
A glacier picks up rocks through a process called ____________.
plucking
Times when continental glaciers cover large parts of Earth’s surface are called _______________.
the Ice Age
A __________ is any large mass of ice that moves slowly over land.
glacier
The sediments deposited by a glacier are called ___________.
till
How thick does snow and ice have to be to form a glacier.
30-40 meters
Which force constantly pulls a glacier downhill?
gravity
What is a glacier?
any large mass of ice that moves slowly over land.