Geography Key Terms- Coasts 0.0 / 5 ? GeographyCoastal zonesGCSEOCR Created by: 12rmccarthyCreated on: 16-03-17 10:32 Geology The nature and structure of rocks 1 of 21 Marine erosion The wearing away of rocks by the action of the Sea 2 of 21 Sub-aerial processes Processes active on the face and top of cliffs 3 of 21 Backwash The movement of water down a beach by the action of gravity 4 of 21 Destructive Waves Waves that erode coastlines 5 of 21 Swash The force of breaking waves moving up a beach 6 of 21 Consolidated rock Rock with strong structure that is hard to break down 7 of 21 Dredging Taking sediment from a river or sea bed 8 of 21 Constructive Waves Waves that build up beach material to create Landforms 9 of 21 Groyne Wooden or concrete construction built across a beach 10 of 21 Longshore Drift The movement of material along a coastline by the action of waves 11 of 21 Prevailing wind Most frequent wind direction 12 of 21 Nature Reserve Area set aside to preserve plants and animals 13 of 21 Salt Marsh An area of tidal mudflats, partially flooded at high tide 14 of 21 Silt Very fine sediment deposited by flowing water 15 of 21 Mangroves Evergreen trees and shrubs growing in tropical coastal areas, whose roots trap sediment and aid beach development 16 of 21 Tsunami Tidal wave caused by an underwater earthquake 17 of 21 Beach Replenishment Building up of the beach by pumping sand or shingle on to it 18 of 21 Sustainable Management Long-term management that does not harm people or environments 19 of 21 Amenity Value Used for recreational and leisure activities 20 of 21 Managed Retreat Allowing the sea to flood lowland areas 21 of 21
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