18 terms

Coastal Erosion

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Terms in this set (...)

Stack
A pillar of rock jutting out of the sea which used to be attached to a headland.
Arch
A hole in the headland formed when two caves joined back to back.
Cave
An opening in a cliff formed by the widening of a crack or fissure.
Crack
A line of weakness in a rock or cliff.
Headland
An area of harder rock jutting out into the sea.
Bay
An inlet area of softer rock which has been eroded to form a bay.
Wave-cut Platform
A flat platform of rock at tidal level which was once a sea cliff.
Blowhole
A hole in the top of a headland through which the sea has eroded.
Notch
An indent at the foot of a cliff caused by increased erosion at the foot of a cliff.
Stump
The remaining rock pedestal once a stack has collapsed.
Reef
An eroded intertidal remains of a stump.
Geo
A narrow inlet between two headlands.
Hydraulic Action
The power of waves to erode.
Abrasion
The sea picking up rocks and crashing them against cliffs, causing erosion.
Attrition
Rocks being bashed against each other, making them smaller, smoother and rounder.
Solution
The action of chemicals in water which erodes rock by reacting with it and dissolving it.
Cliff Collapse
Cliffs falling down due to gravity.
Slumping
Cliff collapse by the sliding down of earth and rock.