Chalk Cliff Coast of East Sussex

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Presentation transcript:

Chalk Cliff Coast of East Sussex By: Sara Griffith

Sussex County, England

Sussex Coastline Stretches 150 km Comprises cliffs of chalk and sandstone Macro-tidal eroding cliff-beach-shore platform system Sedimentary rock formed during the Cretaceous

Chalk Cliffs Geomorphological Formations Constantly eroding forming -arches -caves -cliffs -headlands

Fragile Cliffs Chalk is soft, weak rock that is easily fissured Vulnerable to the power of wind and waves Rock falls in this region are frequent Rock fall at Beachy Head

Causes of Erosion Advance in global warming will cause an increase in erosion Climate Change Acid Rain Increased Wave Height Increased Rainfall Coastal Development Tectonic Movement

Problems Public Safety Property damage: loss of buildings and roads Tourism and economy of coastal towns Conservation issues with natural beauty and scientific interest Eastborne in Sussex County

Management Practices Hard structures such as groins, seawalls, dykes, and breakwaters placed on beach Renourishment with shingles to increase width of the platform

Managed Retreat Natural processes are allowed to take course Compensation is paid for property loss and damage Cheaper than the massive costs of engineering because hard structures have to be repaired regularly and may cause damage elsewhere Most sustainable option

The End