Influence of geology (Edexcel GCSE Geography A): Flashcards
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Erosion rate of soft rocks like clay
Erosion rate of soft rocks like clay
Much faster erosion than hard rocks
Erosion rate of hard rocks like granite
Erosion rate of hard rocks like granite
Much more resistant to erosion
Cliff profile on soft rock coastlines
Cliff profile on soft rock coastlines
Lower height, gentler, less steep profiles
Cliff profile on hard rock coastlines
Cliff profile on hard rock coastlines
High, steep cliffs with rugged profiles
Definition of concordant coasts
Definition of concordant coasts
Coastline made up of same type of rock
Coastline shape of concordant coasts
Coastline shape of concordant coasts
Relatively straight coastline
Definition of discordant coasts
Definition of discordant coasts
Different rock types alternate along coastline
Where headlands form on discordant coasts
Where headlands form on discordant coasts
Where hard, resistant rocks meet the sea
Where bays form on discordant coasts
Where bays form on discordant coasts
Where softer rocks eroded away more quickly
Definition of joints in rock
Definition of joints in rock
Smaller cracks in rock formations
Definition of faults in rock
Definition of faults in rock
Larger fractures cutting through rock layers
Effect of joints & faults on erosion
Effect of joints & faults on erosion
Make rocks more vulnerable, erode much faster
Characteristics of destructive waves
Characteristics of destructive waves
Weak swash, strong backwash, erosional effect
Characteristics of constructive waves
Characteristics of constructive waves
Build up coast by depositing sediment