Coastal Processes

Rocks, stones and sand are hurled against the cliff

• Abrasion

• Attrition

• Hydraulic power

• Solution

Erosion by the power of water, which forces air into cracks

• Abrasion

• Attrition

• Hydraulic power

• Solution

Stones collide, becoming smaller and rounder over time

• Abrasion

• Attrition

• Hydraulic power

• Solution

Small stones 'bounce' along the sea bed

• Traction

• Saltation

• Suspension

• Solution

Small particles of sediment are 'held' in the water

• Traction

• Saltation

• Suspension

• Solution

Longshore drift is the ___ - ___ movement of sediment along the coast

Fetch is the ________ a wind blows over

Constructive waves have...

• Strong swash, high wave height

• Strong swash, small wavelength

• Weak swash, small wavelength

• Strong swash, low wave height

Water in cracks, freeze, expand and melt repeatedly.

• Salt crystallisation weathering

• Freeze-thaw weathering

• Thaw-freeze weathering

• Ice break weathering

Acidic rain water dissolves limestone

• Biological weathering

• Chemical weathering

• Salt crystallisation

• Physical weathering