Coastal Proccesses

Attrition - Particles carried by the waves are thrown against each other and broken into pieces. Corrasion - Sand, shingle and pebbles carried by the waves are thrown against the cliff and gradually wear it away. Corrosion or Solution - Very small particles of rock are dissolved by the sea and carried away in solution. Hydraulic Action - When a wave pounds rocks air is trapped in cracks. When the waves retreat the air expands …

…agents e.g. sea, ice and wind. Deposition - Material carried along the coast is dumped. This may form beaches. Longshore Drift - The movement of pebbles and sand along the beach. The waves move the pebbles up the beach (swash) and down the beach (backwash) in the direction of the wind. Weathering - Ways in which the rocks are weakened or broken down without being removed. This is usually the result of the weather.