coastal depositions

Question 1

spit

Answer 1

• process
• form when there is a change in direction on a coastline
• This allows a sheltered area for deposition
• Material slowly builds up to appear above the water and the spit develops as long as the supply of deposition is greater than the amount of erosion
• example is Culbin Sands

Question 2

tombolo

Answer 2

• process
• To begin with, a spit will form when there is a change in direction on a coastline
• The spit extends out from the mainland, connecting to an island to form a tombolo
• Material slowly builds up to appear above the water line

Question 3

the start of each answer

deposition processes

Answer 3

• (depos) are formed by the process of longshore drift which is lateral/zig-zag movement of the waves
• Swash is where waves push material up the beach at an angle due to the prevailing wind
• the returning backwash is dragged back down the beach at right angles due to gravity

Question 4

sandbars*

Answer 4

• processes
• sandbars form when there is a change in direction on a coastline allowing a sheltered area for deposition material slowly builds up to appear above the water
• the bar develops as long as the supply of deposits is greater than the amount of erosion
• if a spit reaches the other side a of a bay then a sandbar is formed
• An example is Slapton Sands