Notes
Coastal landforms & Longshore Drift
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CAVES:
Abrasion and hydraulic action widen a joint or fault that is already present in the headland, creating a cave.
Waves make the cave larger and larger until an arch is formed.
As the arch becomes bigger and bigger, it will no longer be able to support itself, and the roof will collapse, leaving a tall stack remaining.
The stack will be attacked from the base like a wave cut notch, and it will then collapse, leaving a stump.
The spit itself is a SEDIMENT build-up as a result of longshore drift.
The longshore drift has cut off the CONCAVE CURVE in the coastline.
OLD HARRY ROCKS in DORSET
SPURN POINT - Spit
CHESIL BEACH (DORSET): Bar
CHESIL BEACH (DORSET): Tombolo
Cliffs
Spits & Tombolos & Bars
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- GCSE Geography (Coastal Zone) Note on Coastal landforms & Longshore Drift, created by megan1403 on 02/06/2013.
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