3.2 Coastal Processes Flashcards Preview

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Flashcards in 3.2 Coastal Processes Deck (5)
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1

6 main ways waves erode the coastline

corrasion - abrasion
hydraulic action
cavitation
wave quarrying
solution
attrition

2

Define corrasion/abrasion

bits of rock and sediment transported by the waves smash and grind against rocks and cliffs, breaking bits off and smoothing surfaces

3

Define hydraulic action

air in cracks in cliffs is compressed when waves crash in, the pressure exerted by the compressed air breaks off rock pieces

4

Define cavitation

as waves recede, the compressed air expands violently, again exerting pressure on the rock and causing pieces to break off

5

Define wave quarrying

the energy of a wave as it breaks against a cliff is enough to detach bits of rock