Landforms of coastal erosion

Landforms of erosion

Durdle Door and Old Harry Rocks:

geos (faults in rock)-->caves (formed by solution and Hydraulic action)--> blowholes(hole formed all the way through)--->arches-->stacks(wave pounding)--->stumps (Old Harry)

made from resistant rock

East Perbeckcoast has a DISCORDANT coastline- where the rock alters in type

• Studland bay- clay
• Ballard point-chalk
• Swanage bay-clay
• Durlston head-Limestone

Concordant is where the rock is the same throughout

Wave Cut platforms:

• 4*degree angle eroded mainly by abraision
• the rock is eroded at the base of the cliff between HT and LT
• this forms a wave cut notch most probably through solution or hydraulic action
• then this becomes weak as the…