Keywords Flashcards
Discordant coastline definition
Alternate bands of harder and softer rock types that run perpendicular to the beach
Erosion definition
Wearing away of rock along a coastline
Deposition definition
When the sea looses energy it drops its load
Swash definition
The movement of the wave up the beach
Backwash definition
The movement of the wave back down the beach
Hard engineering definition
Building artificial structures to try control natural processes
Soft engineering definition
Natural environment is used to help reduce coastal erosion and flooding
Concordant coastlines definition
Same rock along a coastline
Cliffs, wave cut platforms
Biological weathering definition
- roots of plants find their way into cracks in rocks
-roots expand making the cracks expand
Chemical weathering definition
-breaks down bonds holding rocks together
-more common near water
Mechanical weathering definition
A process by which rocks crumble eg:
Landslide, rockfall
MASS MOVEMENT
Sliding definition
Blocks of rocks slide downhill
MASS MOVEMENT
Rotational slip definition
Slump of saturated soil and weak rock along a curved surface
MASS MOVEMENT
Rock fall definition
Fragments of rock break away from the cliff face often due to freeze thaw
Longshore drift definition
The transport of sediment along a stretch of coastline caused by waves approaching the beach at an angle
