Erosion Processes Flashcards
Abrasion
sediment and stones are picked up by the waves and wear away at the cliff/headland
Hydraulic action -
this is the shear force of the waves forcing air at high pressure into cracks in the cliff over time this weakens the rock and causes the joint to widen
Attrition
as rocks are moved around by the water they knock into each other gradually becoming smaller and rounder
Corrosion solution
weak acids in seawater dissolve the rock particles
Factors affecting erosion
The amount of erosion is influenced by a range of factors
Wave type
Wave size
Lithology( weaker rock erode quicker
Wave type and size affects the seasonal changes in the amount of erosion
Erosion tends to happen more during the
winter due to a greater number of destructive waves
The size and type of waves affects the amount of
hydraulic action and abrasion