Explain the processes leading to the development of a tombolo
1) The off shore island causes wave refraction
2) This brings the waves around the island on either side traveling in opposing directions
3) In the sheltered area behind the island the waves meet. Sediment is deposited in the low energy, shallow area
4) W
1 of 5
What is an alternative theory of how a tombolo is formed?
a spit joins the island to the mainland
2 of 5
How is an offshore bar formed?
1) deposition flows meet as material is moved onshore and offshore
3 of 5
How is a barrier beach formed?
1) extension of a spit which has grown across a bay
2) A lagoon of water is left behind the beach
3) colonisation of vegetation stabilises the the beach
4 of 5
Explain the processes leading to the formation of a spit.
1) The coast changes angle at an estuary
2) LSD continues to move sediment across the inlet
3) energy from the river means the spit can't fully join back to the mainland
5 of 5
Other cards in this set
Card 2
Front
What is an alternative theory of how a tombolo is formed?
Back
a spit joins the island to the mainland
Card 3
Front
How is an offshore bar formed?
Back
Card 4
Front
How is a barrier beach formed?
Back
Card 5
Front
Explain the processes leading to the formation of a spit.
Comments
No comments have yet been made