Flashcards in Glaciers Deck (6)
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1
What is a glacier?
A glacier is a moving mass of ice and rocks made up of compact snow or ice from the mountains or the surface
A glacier is the most erosive land mass on the planet
2
How old are or can glaciers be?
Glaciers were formed back in the last ice age 2.6 million-12,000 years ago
3
Where can you find glaciers?
You can find a glacier anywhere
Usually most glaciers are found further away from the equator,(e.g. The Lambert Glacier in Antartica)some can be found closer to the equator(e.g. The Kilimanjaro Glacier).
4
How do glaciers erode?
Glaciers erode through a process called Freeze-Thaw weathering where they pluck debris off of the surface
5
What is Freeze-Thaw weathering?
How does it work?
Freeze-Thaw weathering is another way glaciers erode
During the day, water goes into the cracks of rocks and expands. During the night, it contracts. The water will do this for a while,(maybe a year) and after a period of time, it will wear down the rocks enough and the rocks will the break. The Glacier then plucks the rock up and drags it along with it.
6
