coasts

Created by: Nayole
Created on: 05-05-18 12:13

What affects erosion

The biggest factor affecting coastal erosion is the strength of the waves breaking along the coastline. A wave’s strength is controlled by its fetch and the wind speed. Longer fetches & stronger winds create bigger, more powerful waves that have more

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concordant coastline

Concordant coasts have alternating layers of hard and soft rock that run parallel to the coast. The hard rock acts as a protective barrier to the softer rock behind it preventing erosion. If the hard rock is breached though, the softer rock is expose

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Discordant Coastline

On a discordant coastline, alternating layers of hard and soft rock are perpendicular to the coast. Because the soft rock is exposed, it is eroded faster than the hard rock. This differential erosion creates headlands and bays along discordant coastl

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Human impacts on erosion

Dredging can have devastating consequences for coastal towns because of the increased erosion. Hallsands, in Devon, UK, was destroyed as a result of a dredging operation carried out in the early 1900s. The bay in front of the town was dredged resulti

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yes

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Other cards in this set

Card 2

Front

concordant coastline

Back

Card 3

Front

Discordant Coastline

Back

Card 4

Front

Human impacts on erosion

Back

Card 5

Front

yes

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coasts