Glaciers/Wind Erosion Flashcards
Ice age
A period of time when much of Earth’s land is covered in glaciers
Glacier
A thick ice mass that moves slowly over the land surface
Snowline
Lowest elevation in a particular area that remains covered in snow all year
Valley glaciers
I’ve masses that slowly advance down Valley - was originally occupied by streams
Ice sheet/continental glacier
Enormous ice masses that flow in all directions from one or more centers and cover everything but the highest land
Glacial Trough
What happens to V shaped valley when glaciers fill it. U Shaped
Cirque
Bowl shaped depression at the head of glacial valley surrounded on three sides by steep rock walls
Arêtes
Snaking sharp edged ridges
Horns
Sharp pyramid-like peaks
Stratified drift
Sediment laid down by glacial meltwater
Deflation
The lifting and removal of loose particles such as clay and silt
Loess
Wind blown silt that blancjetsbthe landscape
Moraines
Kate’s or ridge left after glaciers melt