In the winter , sand and shingle were dredged from the sea bed at Poole Harbour and added to the upper parts of Swanage beach creating a wider beach. Lulworth Cove is situated on the south coast of England, on a concordant coastline. Behind the limestone is a layer of clay which is softer so more easily eroded. Its coastline has examples of many erosional and depositional landforms. The Foreland, Old Harry and his Wife: Chemical weathering and erosion are gradually wearing down these down.
The alternating bands of hard and soft rock run parallel to the coast. A concordant coastline has the same type of rock along its length. Erosion is the dominant process in the bay with the beach losing material year on year. The spit has continued to join to the Isle of Portland. Towards the northern end of the bay the cliffs are covered in vegetation, stablising them and protecting them from erosion.
Erosion is the dominant process in the bay with the beach losing material year on year.
At the back of the cove is a band of more resistant chalk, so erosion is slower here. This is made of chalk which is a harder rock.
The headland is made out geograpby chalk, a hard rock.
Coastal landforms – Edexcel – Revision 3 – GCSE Geography – BBC Bitesize
Groynes Groynes are wooden or stone barries which are built at right angles to the coast. Lulworth Cove is situated on the south coast of England, on a concordant coastline. Towards the northern end of the bay the cliffs are covered in vegetation, stablising them and protecting them from erosion. The areas where the soft rock has eroded gdse, next to the headland, are called bays.
Elsewhere, the cliffs are not covered by vegetation, so wet weather weakens them causing slumps. The limestone cliffs forming the back wall of the cove are vulnerable to mass movement and sometimes experience small slides and slumps. Coastlines where the geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines.
Because there’s no erosion, there is no material to replenish the beach meaning the beach level will become lower. As areas of the Dorset coast are being eroded, properities and infrastructure are at risk.
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.
The arch is gradually being worn away by mechanical, chemical and biological weathering.
Coastal Case Studies
It is unusual as it has formed parallel to the coastline. In the wintersand and shingle were dredged from the sea bed at Poole Harbour and added to the upper parts of Swanage beach stjdy a wider beach. New timber groynes were installed on Swanage beach in and have reduced the loss of beach material. Then the cove widens where the softer clays have been more easily eroded. The entrance to the cove is narrow where the waves have cut through weaknesses sqanage the resistant limestone.
How do climate and geolgy influence geomorphic processes? Longshore drift affects the bay carrying srudy mainly gravel from the south to the north of the beach.
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 soft casf is made of clay and sands, and the hard rock is chalk and limestone.
The area around Swanage is made up of bands of hard and soft rock. Behind the spit there is The Fleet, a lagoon. Over time Old Harry will collapse to form a stump. Chesil Beach is an example of a bar. It is called the Jurassic Coast as it has lots of fossils dating back to the Jurassic period.
An Examination of the coast line in the Swanage Area. – GCSE Geography – Marked by
The Foreland, Old Harry and his Wife: Its coastline has examples of many erosional and depositional landforms. They reflect waves back out to sea preventing erosion of the cliff.
How are geomorphic processes creating coastal landforms? Studg headland juts out into the sea, so it is more vulnerable to high-energy waves. The alternating bands of hard and soft rock run parallel to the coast. How is human activity, including mangement, working in combination with geomorphic processes to shape the landscape?