Beach Formations Flashcards
1
Q
Spit
A
Turn in coastline (>30°)
LSD loses energy - deposition
2
Q
Double spit (Poole Harbour)
A
Low energy environment creates lagoon
Current from the river sustains gap
Spits on either side
3
Q
Recurved spit (Hurst Castle)
A
Secondary dominant wind
Changes direction of deposition
Low energy env behind spit - flocculation makes marsh
4
Q
Tombolo (Marissa, Sri Lanka)
A
Wave refraction around offshore island creates low energy env
High deposition to connect bar and spit
5
Q
Barrier beach/bar (Slapton)
A
Spit extends to other side to create bar
6
Q
Bay head beach
A
90° swash so erosion on headlands + deposition in bays
Berm - ridges created by high tide mark
Cusps - crescent shaped depressions
7
Q
Cuspate foreland (Dungeness, Kent)
A
2 spots meet from either side oh headland - forms lowland
