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Eventually the hollow becomes too small for all
the snow and so it spills out and makes its way
down the mountainside
When the ice melts, a deep hollow is left in
the side of the mountain. This is a corrie or
a cirque. Sometimes it may contain water
When two corries
exist back to back,
the dividing wall
is eroded and so
becomes thinner.
This is called an
ARETE.
When a mountain peak contains TWO or
more aretes, it takes on the shape of a
triangle and is called a PYRAMIDAL peak
Glaciers usually make their way down old
river valleys. Due to the strength of the
glacier it is eroding the bed and the sides of
the river valley as it moves.
When the
ice melts,
the smaller
valley is
left above
the main
valley. This
is called a
HANGING
valley
As the ice makes its
may through the V
shaped valley, it
bulldozes through the
interlocking spurs
originally formed by
the stream. As a result
the valley now takes
on a steep sided
shape. The sides are
now called
TRUNCATED
SPURS
As the glacier
makes its way
down through the
u shaped valley, it
meets sections of
rock on the valley
floor. It freezes
around them and
so when it moves
plucks out the rock
and carries it with
it. The hollow left
on the valley floor
can fill with water
to be called a
RIBBON LAKE
These ribbon
lakes can also
be called
PATER
NOSTER
lakes as they
are thought to
resemble the
beads on a
Rosary beads
Sometimes the glacier can move out to sea and cut
a U shaped valley that ends at the coastline. When
the ice melts, the section of the u shaped valley
closest to the coast can flood and so it is called a
FIORD