Glaciers Flashcards
Glaciers are rivers of:
Ice
Any body of ice that flows downhill pulled by Earth’s gravity just like rivers in slow motion
Glacier
Snow transforms to _____
Ice slowly
All ice starts out as ____
Snow
As it is buried, old snow compacts into ___
Firn
Firn crystallizes to:
Solid Ice
Glaciers end where ice:
Melts
Where the snow piles up
Head
At the head of the glacier, snow piles up =
Accumulation
Plucks up and carries sediment of all sizes (mud —-> giant boulders)
Body
At the TOE of a glacier ice melts and drops drops sediment =
Ablation
Ice ALWAYS flows _____
Downhill
A glacier grows longer as climate gets colder
Advance
A glacier melts and shrinks as climate gets warmer
Retreat
‘Baby’ glaciers just starting to flow, high up in the mountains
Cirque Glaciers