Coastal Erosion Flashcards
What is boulder clay
Clay containing many large stones and boulders, formed by deposition from melting glaciers and ice sheets
What is granite
A very hard, granular, crystalline, igneous rock consisting mainly of quartz, mica and feldspar and often used as a building stone.
What is marble
A hard crystalline metamorphic form of limestone typically white with coloured mottling or streak, which may be polished and is used in sculpture and architecture
What is chalk
A white soft earthly limestone (calcium carbonate) formed from the skeletal remains of sea creature
What erodes faster hard or soft rock
Soft rock
What is a spit
A beach that extends out into the sea
What is longshore drift
This is how the wind and the sea work together to move material along a coastline an da beach
What is a groyne
Wooden walls which help prevent long shore drift to help the beach build up.
What is rock armour
Protects the wall from erosion, rock protecting the land
What is a sea wall
A wall or embankment erected to prevent the sea eroding an area of land
What is beach nourishment/replenishment
Adding/ replacing sand to build up the beach and replace longshore drift.
What is offshore breakwater/ reef
Causes the waves to break further away from the beach
What is revetments
Barricade of earth or and bags to protect the coast
Coastline
Where the land meets the sea
Geology
The study of rocks
