Coastal Landforms Erosional Features Cliff and Wave-cut Platform Active wave erosion between the high water mark and low water mark Notch.

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Presentation transcript:

Coastal Landforms Erosional Features

Cliff and Wave-cut Platform Active wave erosion between the high water mark and low water mark Notch

Cliff and Wave-cut platform Basal undercutting; notch enlarge Rock above notch collapse Cliff retreats

Cliff Cliff retreats Wave-cut platform enlarges Cliff and Wave-cut platform Wave- built terrace

Sea cave, blow hole and geo Active erosion Line of weakness

Sea cave, blow hole and geo Sea cave at the base of the cliff Sea cave Cliff

Sea cave, blow hole and geo Lines of weakness Sea cave enlarges Hydraulic action continues

Sea cave, blow hole and geo Blow hole Sea cave Blow hole Sea cave A tunnel is formed

Sea cave, blow hole and geo Roof of cave collapses Geo (a steep-sided narrow inlet)

Sea cave, sea arch and sea stack Line of weakness Caves

Sea cave, sea arch and sea stack Arch A tunnel formed

Sea cave, sea arch and sea stack Arch collapses Sea stack Arch collapses