Tombolos Flashcards
1
Q
What is tombolos (2)
A
An island connected to the mainland by a mound of sediment
Could be called ‘tied islands’
2
Q
What ways might a tombolo form (2)
A
Longshore drift
Wave refraction
3
Q
Formation of tombolo - LSD + example
A
Spit grows out and connects an island to mainland
Angel road in Japan
4
Q
Tombolo formed through wave refraction (4+)
A
Waves move towards the coastline + slow as it gets shallower
Waves are moving slower than normal = move around island instead of over it
Waves meet on the other side = energy falls and material deposited
Overtime = sandbar that connects island to beach
5
Q
Example of wave refraction tombolo
A
St. Ninians tombolo in Shetland isles in Scotland
