Coastal Landscapes Flashcards
What is weathering?
The break down of rocks in situ
What are the three types of weathering?
Physical
Biological
Chemical
What is mass movement?
The downhill movement of material under the influence of gravity
How do waves erode the coast?
Abrasion
Hydraulic action
Attrition
Solution
What is longshore drift?
The process where beach sediment is transported along the coast by waves
What determines the direction of longshore drift?
The direction of prevailing wind
How are stones transported?
Suspension
Solution
Traction
Saltation
Describe a constructive wave?
A wave with a strong swash but a weak backwash
What wave involves deposition?
Constructive waves
What will soft rock cliffs look like?
Less rugged and less teep
What landscapes are soft rock?
Bays
What will hard rock cliffs look like?
High, steep and rugged
What are concordant coasts?
Coasts that are made up of the same rock type
What do discordant coasts form?
Bays and headlands
Describe a destructive wave?
A wave with a weak swash but a strong backwash
