Deposition land-forms

Question 1

How do spits form?

Answer 1

Drift-aligned beach
Littoral drift along coastline
Spit extends out due to change in wind direction

Question 2

How does a tombolo form?

Answer 2

Spit extends out
Connect an island to the mainland

Question 3

How does a bar form?

Answer 3

2 spits develop
Extend across a bay
Join together

Question 4

How does a barrier island/beach form?

Answer 4

Swash aligned beach
Waves break parallel
Deposition occurs in coves and bays

Question 5

What are ripples?

Answer 5

Tide goes out
Waves retreat and create patterns
Must be a sandy beach- low energy + constructive

Question 6

What are runnels and ridges?

Answer 6

Bodies of water left after the tide is caught in raised land

Question 7

What are cusps?

Answer 7

Semi circular patterns
Found in Bays
Refracting wave energy spreads and 2 swash create a stronger backwash

Question 8

What are offshore bars?

Answer 8

Deposits of sand offshore
Created from summer to winter
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