Coastal Erosion

Coastal Erosion:

Hydraulic Action

The sheer force of waves breaking against a cliff which causes parts of the cliff to break away.

Abrasion/Corasion

During storm conditions, waves pick up rocks, pebbles and sand. It is hurled against the cliff face. They get into cracks and caves which causes a sandblasting effect and thus causes cracks and caves to deepen.

Attrition

Sand and pebbles are constantly colliding with each other as they are moved by waves on a beach. This action makes the beach smaller which means the cliff face can be attacked again.

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