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Weathering and Mass movement - Coggle Diagram
Weathering and Mass movement
rock falls
at the bottom of the cliff they fan out to form a scree slope
where freeze thaw weathering causing rocks to loose contact through the cliff face,
example: burton bradstock in dorset
in 2012 400 tonnes of rock fell
slumping
material is rotated backwards into the cliff face as it slips
a slump has a concave slip plane
example: Barton on Sea, Hampshire (slumping at 30 cm a day
sliding
rock slide
a lage amont of rock slides down a cliff
rock falls as a block and collects as a pile of rocks
landslide
heavy rain enters the soil and seeps down to the rocks
the mass falls away alog a line of weakness
the slide tears away vegetation on the top of the cliff and slides over the wet rock
the downhill movement of a large amount of rock, soil and mud from steep cliffs weakened by weathering
example: Durdle Door
mud slides
occur on steep slopes after heavy rain
Monmouth Beech at Lyme Reigis
occur where a lack of vegetation means that the soil is not kept in place
at the base of the mudslide, the soils spreads out to make a lobe