1.1.7: characteristics + formation of coastal depositional landforms Flashcards Preview

A Level Geog: C,T,W+C,En > 1.1.7: characteristics + formation of coastal depositional landforms > Flashcards

Flashcards in 1.1.7: characteristics + formation of coastal depositional landforms Deck (12)
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1
Q

Beach are what type of landform

A

dynamic landforms

2
Q

Main influences on beach construction

3

A

sediment supply
wave energy
wave direction

3
Q

Main types of beach

3

A

swash-aligned
drift-aligned
zeta-formed

4
Q

Swash-aligned beach

A

Waves break parallel to the shore and sediment moves onshore/offshore

5
Q

Drift-aligned beach

A

Waves break at an oblique angle to the shore and longshore drift occurs along the shore

6
Q

Zeta-formed beach

A

Waves break at an oblique angle but a headland at each end causes wave refraction, blocking sediment movement, longshore drift along coast and sediment builds up in front of a headland

7
Q

Spit

A

A linear ridge of sediment joined to the land at one end

8
Q

Distal end and proximal end of spits

A

The distal end of a spit lies in open water and the proximal end is joined to the mainland

9
Q

Bar

A

A bar forms when a spit grows to form a ridge that blocks off a bay and creates a lagoon or begins as deposits out at sea

10
Q

Barrier island

A

A bar not connected to the mainland

11
Q

Tombolo

A

A spit or bar that joins the mainland to an island

12
Q

Cuspate foreland

A

A triangular-shaped projection from the shoreline made up of a series of ridges created by longshore drift from opposing directions

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