HOLDERNESS COAST CASE STUDY CLIFF COLLAPSE

What is plan to defend the terminal against the sea? It is this soft boulder clay that is being rapidly eroded. By continuing to browse the site, you are agreeing to our use of cookies. The geology runs in bands, with a chalk layer at Flamborough in the North, Boulder clay or till laid down in the last ice age south of that and finally river deposits in the Humber Estuary. It is this soft boulder clay that is being rapidly eroded. Holderness Coast is a good example of rapid coastal erosion for reasons like: Although the coastal defences have had a positive impact in terms of reducing the rate of erosion and protecting the village and main road, the area directly south of the village now suffers from an even greater rate of erosion.

As the movement of sediment has been disrupted due to the construction of the stone groynes material previously feeding the beaches to the south of the Mappleton is restricted. The Holderness Coast is the most rapidly eroding coastline in Europe. Click on the image for a clearer picture. These large granite boulders were imported from Scandinavia and deposited by barge along the coast. Tourism and recreation, urbanisation, fisheries and aquaculture, agriculture and forestry, industry, transport and energy, nature and conservation. So, blocks of granite were brought in and placed along the cliff base and 2 rock groynes were put into place to trap sediment moving because of longshore drift. There is a debate about whether or not human beings should attempt to defend coastlines.

Following the construction of defences, they increased to 3. Timber groins, drains, seawall, revetments. Typhoon Haiyan Case Study.

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holderness coast case study cliff collapse

This is around 2 million tonnes of material every year. If you’ve found the resources on this page useful please consider making a secure donation via PayPal to support the development of the site. What is clff to defend the terminal against the sea? Mappleton is located on the Holderness Coast of East Yorkshire. The Ckast coast mainly consists of soft glacial drift cliffs, which have been cut back up to m over the last century.

Sea level rise associated with climate change and the prevailing north-easterly wind conspire to make this coast susceptible to rapid rates of coastal erosion. The second is that holdernesss cliffs are made of soft boulder clay which erodes rapidly when saturated. Tourism and recreation, urbanisation, fisheries and aquaculture, agriculture and forestry, industry, transport and energy, nature and conservation.

It works by absorbing — not reflecting — wave energy coplapse large air spaces between the boulders and a broad surface area. It has the unenviable reputation as the number one place in Europe for coastal erosion, and in a stormy year waves from the North sea can remove between 7 and 10m of coastline.

Holderness Case Study Page

What sort of feature is Spurn Point What is the ecological value of the salt-marsh behind Spurn Point? There are two main reasons why this area of coast is eroding so rapidly. The boulders are placed like a wall in a m line of defence along the shoreline. They have been successful in restricting waves from attacking the base of the cliffs here.

Vegetation was planted on the cliffs to further stabilise them from mass movement. In the map above you can see that much of the land at the back is comprised of Chalk and much of the front land area is made up of Boulder Clay.

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holderness coast case study cliff collapse

Rates of erosion to the south of the defences at Mappleton have increased significantly since the construction stjdy defences at Mappleton. There is a debate about whether or not human beings should attempt to defend coastlines.

It is this soft boulder clay that is being rapidly eroded. The second is that the cliffs are made of soft boulder clay which erodes rapidly when saturated. This is evident in the image below. Collapse second is that the cliffs are made of soft boulder clay which erodes rapidly when saturated.

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Mappleton – A Level Geography

The rock armour revetment has been very effective in protecting the cliff to the southern end of the settlement. Kerala flood case study. Holderness Coast – Study Page. Under lying the Holderness Coast is bedrock made up of Cretaceous Chalk.

In order to protect the cliffs along the front of Mappleton from undercutting, their gradient was also reduced artificially. However, in most place this collspse covered by glacial till deposited over 18, years ago.

However, in most place this is covered by glacial till deposited over 18, years ago.

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