3.2 PROCESSES of GLACIAL EROSION
There are two main processes of glacial erosion
:-
plucking -This is the tearing away of blocks of rock which
have become frozen onto the base and sides of a glacier. (tip!
never grab a metal gate on a very cold frosty morning and pull
your hands away quickly as the ice - skin bond may prove stronger
than the skin - flesh bond and the skin may be plucked from
your hand! OUCH ! ..... This is why scaffolders wear gloves in
such conditions).
abrasion -This is the wearing away of the rocks at the base and sides of the glacier by the scouring action of ice containing rocks plucked from the Earth's Surface. The ice acts rather like an enormous sheet of sand paper.
