SWANAGE CASE STUDY GCSE

The areas where the soft rock has eroded away, next to the headland, are called bays. The Foreland, Old Harry and his Wife: Dorset is located in the south of England. However, this creates a strong backwash which removes sediment from the beach and can lead to erosion under the wall. New timber groynes were installed on Swanage beach in and have reduced the loss of beach material. Its coastline has examples of many erosional and depositional landforms.

The arch is gradually being worn away by mechanical, chemical and biological weathering. Elsewhere, the cliffs are not covered by vegetation, so wet weather weakens them causing slumps. This caused the formation of Old Harry, a stack. New timber groynes were installed on Swanage beach in and have reduced the loss of beach material. Behind the limestone is a layer of clay which is softer so more easily eroded. The Foreland, Old Harry and his Wife: Chesil Beach is an example of a bar.

An Examination of the coast line in the Swanage Area.

This means sudy are slowed, reducing erosion and will help to protect proprties and cliffs. It is unusual as it has formed parallel to the coastline.

New timber groynes were installed on Swanage beach in and have reduced the loss of beach material. The area around Swanage is made up of bands of hard and soft rock. The spit has continued to join to the Isle of Portland.

Over time Old Harry will collapse to form a stump. Dorsert is located on the southern coast of the UK. The arch is gradually being worn away by mechanical, chemical and biological weathering.

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swanage case study gcse

Chesil Beach is an example of a bar. An arch at the end of the headland has collpased to form a stack called Old Harry and a stump called Old Harry’s Wife. The headland juts out into the sea, so it is more vulnerable to high-energy waves.

An Examination of the coast line in the Swanage Area. – GCSE Geography – Marked by

The bands of soft rock erode more quickly than stydy of the more resistant hard rock leaving a section of land jutting out into the sea, called a headland. Groynes are wooden or stone barries which are built at right angles to the coast.

Elsewhere, the cliffs are not covered by vegetation, so wet weather weakens them causing slumps.

swanage case study gcse

But, by stopping the movement of beach material along the coast beaches further down the coast are becoming narrower and subject to more erosion due to reduced ability to absorb wave energy. Concrete sea walls are in place along most of Swanage beach. Coastal management strategies are being used along the Dorset coastline to prevent erosion in some areas but they have impacted the landscape and caused changes to the natural environment.

The soft rock is made of clay and sands, and the hard rock is chalk and limestone.

How do climate and geolgy influence geomorphic processes? The limestone cliffs forming the back wall of the cove are vulnerable to mass movement and sometimes experience small slides and slumps.

Dorset – case study of a UK coastal landscape

A concordant coastline has the same type of rock along its length. This is made of chalk which is a harder rock. Groynes Groynes are wooden or stone barries which are built at right angles to the coast.

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swanage case study gcse

Because there’s no erosion, there is no material to replenish the beach meaning the beach level will become lower. The entrance to the cove is narrow where the waves have cut through weaknesses in the resistant limestone. Then the cove widens where the softer clays have been more easily eroded.

They trap material being transported by longshore drift to create larger beaches which can then absorb wave energy to reduce erosion rates. They reflect waves back out to sea preventing erosion of the cliff. Longshore drift affects the bay carrying material mainly gravel from the south to the north of the beach. The Foreland, Old Harry and his Wife: It has been created by longshore drift. Erosion by waves opened up a crack in the headland, which then became a cave and eventually an arch.

At the back of the cove is a band of more resistant chalk, so erosion is slower here. Behind the limestone is a layer of clay which is softer so more easily eroded. How are geomorphic processes creating coastal landforms?