1_glacial erosion - created from Mind Map

Page 1

glaciers form in hollows on the colder, sheltered side of a mountain these hollows are called corries

as a glacier glacier moves, it erodes the landscape into two ways:

snow and ice gathers in the hollow and over time the corrie gets larger by freece-thaw weathering.

also loosens pieces or rocks

inside the hollow

fall onto the glacier

are called moraine

the ice begins to move in a circular motion, called rotational slip

the ice will move out of the corrie and over the lip of the hollow

the glacier moves down the mountainside

at the front of the glacier is the snout

A lake called a tarn, may form in the corrie.

the steep knife-edged ridge between two corries is called an arête

abrasion

plucking

occurs when pieces of rock carried by the river ice wear away the landscape.

as the glacier erode its transpot material with it

wich helps the glacier erode and shaped the landscape

the material can be frozen within the glacier folund underneath it

occurs when melt water under a glacierfreezes on to the rock surface

as the glacier moves forward, it pulls away a large fragments of rock from the surface