Holderness coast
- Created by: sana.2000
- Created on: 27-03-19 20:12
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- Holderness Coast
- Main reasons why holderness coast is retreating?
- Gelogy
- Fetch
- exposed to winds and waves from the N/E
- small fetch high energy
- low pressure systems over N.sea intense strong winds
- sea floor is deep
- waves reach te sea without being weakened by friction with shallow beaches
- exposed to winds and waves from the N/E
- longshore drift
- boulder clay - produced fine sand
- easily transported - suspension
- sediment moved down the cliff
- easily transported - suspension
- boulder clay - produced fine sand
- geology
- boulder clay - (Hornsea and Mappleton)
- deposited by glaciers from last ice age-fine clays and sand
- fast eroding
- weak structually/little resistenace - porous and permeable
- chalk - flamborough head
- boulder clay - (Hornsea and Mappleton)
- coastal landforms
- Headlands (Chalk) Flamborough
- Erosion along fault lines and bedding planes has created features e.g. Cliffs, arches and stacks
- Bays
- sloping cliffs - due to slumping
- Headlands (Chalk) Flamborough
- Morphology
- produce shallow, sloping cliffs
- Discordant coast line
- Sub-aerial processes and coastal erosion
- boulder clay
- rain percolates into the cliff (by cracks and permeable clay)
- lubricated and heavy
- slides down due to weight of gravity
- slumping - coastal erosion
- slides down due to weight of gravity
- lubricated and heavy
- rain percolates into the cliff (by cracks and permeable clay)
- Chalk
- corrasion - only significant processsub-aerial
- boulder clay
- Key players
- Environmental Stake Holders
- protect spern head - want flow of longshore drift southwards
- mudflats to Estuary - Birdlife reserve
- protect spern head - want flow of longshore drift southwards
- Central government
- responsible for management - cut spending by 2010
- stakeholders
- toursit indsutry - greater spending on coastal protection
- Environmental Stake Holders
- coastal managment
- terminal groyne syndrome at - Mappleton
- Main reasons why holderness coast is retreating?
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