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COASTAL EROSION
The most dominant process of coastal erosion is wave action.
This is caused by the swash and backwash carrying sediment to and from
the sea.
If a wave has a sloping angle, long shore drift may transport sediment
along the coast.
Other types of erosion at the coast is chemical (limestone) and via wind.…read more

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COASTAL EROSION OF THE
WORLD
Holderness Coast, Ravensthorpe, Hyden,
Humberside, England Australia
Landslip Weathering + water
Erosion…read more

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ROCK TYPE
Unconsolidated rock offers the least
resistance to wave attack.
Weak incompetent rocks form gently sloping
cliffs.
Competent rock (granite) offers the most
resistance to wave attack.
Strong competent rocks form vertical/ to near
vertical cliffs.…read more

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ATTITUDE OF THE STRATA
The gentlest cliffs tend to dip in towards
the sea, these tend to undergo landslips.
The strongest cliffs dip away from the sea.
Rocks of alternate resistance may strike
parallel to the coastline, If the sea breaks
through a resistant rock it can erode the less
resistant rock to form a bay.…read more

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GEOLOGICAL
STRUCTURES
Faults, Joints and Bedding planes are
all weaknesses the sea can exploit via
wave action.
Selective erosion of headlands along
these planes of weakness causes sea
caves, blowholes, arches and stacks to
form.…read more

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