Holderness Coast {coastal processes}

  • Created by: bumpybug
  • Created on: 03-01-23 16:44
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  • Holderness Coast
    • Defense Strategies & Their Success
      • Following a massive breach in 1849, groynes and revetments were erected to stabilise Spurn Head.
        • However, the maintenance soon become too costly and the sea defenses fell into disrepair.
      • Important parts of the coastline have been protected by hard engineering strategies such as sea walls, rock armour and groynes.
        • Although this has ensured the protection of the important areas (tourist towns Hornsea and Mappleton), they have deprived other areas further south of sediment, furthering erosion.
    • Processes & Landforms
      • Flamborough Head:            - a headland  - formed because of its chalk makeup        - has many 'faults' caused by weakness in the chalk and exploited by weathering and erosion    - often experiences rockfalls as erosion undercuts the base of the cliff
      • Bridlington Bay:              - has retreated up to 5km since Roman Times            - much of its sediment is transferred to Spurn Head via longshore drift
      • Spurn Head:    - a spit (landform of deposition)     - has frequently been breached and destroyed during storms
    • Factors Affecting the Coastline
      • Geology: Holderness coast is made up of glacial till and aluvuim (soft rock) and chalk (hard rock). However, both these rocks are easily eroded.
      • Wave power: waves that hit Holderness coast have a very large fetch - they have travelled a long way and this means they are incredibly powerful and destructive.


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