Coastal Processes

Coastal Processes

1. Weathering

   • Mechanical
     • Freeze-thaw
   • Chemical
     • Carbonation weathering

2. Erosion

   • Hydraulic action, Corrasion, Attrition & Corrosion
   • Destructive waves
     • High frequency (10-14 waves / minute)
     • High and steep
     • Powerful backwash
     • Less powerful swash - material is removed
     • Effected by
       • Wind - stronger = large, powerful waves
       • Fetch (distance of water over which wind has blown to produce wave) - greater = bigger, powerful waves