SWANAGE CASE STUDY GCSE

SWANAGE CASE STUDY GCSE

The limestone cliffs forming the back wall of the cove are vulnerable to mass movement and sometimes experience small slides and slumps. The areas where the soft rock has eroded away, next to the headland, are called bays. As areas of the Dorset coast are being eroded, properities and infrastructure are at risk. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. The headland is made out of chalk, a hard rock.

The Foreland, Old Harry and his Wife: Groynes are wooden or stone barries which are built at right angles to the coast. Dorsert is located on the southern coast of the UK. 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. There is also a risk for people from landslides and rockfalls.

Longshore drift affects the bay carrying material mainly gravel from the south to the north of the beach. Concrete sea walls are in place along most of Swanage beach.

An Examination of the coast line in the Swanage Area.

Sediment has been deposited over time to form a spit. Chemical weathering and erosion are gradually wearing down these down. How is swanagge activity, including mangement, working in combination with geomorphic processes to shape the landscape?

Its coastline has examples of many erosional and depositional landforms. Over time Old Harry will collapse to form a stump. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore stud called discordant coastlines.

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The headland is made out of chalk, a hard rock. The bands of soft rock erode more quickly than those of the more resistant hard rock leaving a section of land jutting out into the sea, called a headland. Lulworth Cove is situated on the south coast of England, on a concordant coastline.

As areas of the Dorset coast are being eroded, properities and infrastructure are at risk. They trap material being transported by longshore drift to create larger beaches which can then absorb wave energy to reduce erosion rates.

The limestone cliffs forming the back wall of the cove are vulnerable to mass movement and sometimes experience small slides and slumps. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. The areas where the soft rock has eroded away, next to the headland, are called bays. It has been created by longshore drift. Then the cove widens where the softer clays have been more easily eroded.

Erosion by waves opened up a crack in the headland, which then became a cave and eventually an arch. In the wintersand and shingle were dredged from the sea bed at Poole Harbour and added to the upper parts of Swanage beach creating a wider beach.

swanage case study gcse

This caused the formation of Old Harry, a stack. New timber groynes were installed on Swanage beach in and caae reduced the loss of beach material. Dorsert is located on the southern coast of the UK. Erosion is the dominant process in the bay with the beach losing material year on year. How do climate and geolgy influence geomorphic processes?

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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.

It is unusual as it has formed parallel to the coastline. The arch is gradually being worn away by mechanical, chemical and biological weathering. The spit has continued to join to the Isle of Portland.

Coastal Case Studies – Mindmap in GCSE Geography

At the back of the cove is a band of more resistant chalk, so erosion is slower here. The alternating bands of hard and soft rock run parallel to the coast.

swanage case study gcse

The area around Swanage is made up dwanage bands of hard and soft rock. A concordant coastline has the same type of rock along its length. Sea wall Concrete sea walls are in place along most of Swanage beach. There is also a risk for people from landslides and rockfalls. Behind the spit there is The Fleet, a lagoon.

This means waves are slowed, reducing erosion and will help to protect proprties and cliffs.

swanage case study gcse