However, this creates a strong backwash which removes sediment from the beach and can lead to erosion under the wall. The area around Swanage is made up of bands of hard and soft rock. The entrance to the cove is narrow where the waves have cut through weaknesses in the resistant limestone. Groynes are wooden or stone barries which are built at right angles to the coast. Erosion is the dominant process in the bay with the beach losing material year on year. The Foreland, Old Harry and his Wife:
How do climate and geolgy influence geomorphic processes? Chemical weathering and erosion are gradually wearing down these down. The Foreland, Old Harry and his Wife: 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. How are geomorphic processes creating coastal landforms? This means waves are slowed, reducing erosion and will help to protect proprties and cliffs.
Behind the spit there is The Fleet, a lagoon. Elsewhere, the cliffs are not covered by vegetation, so wet weather weakens them gcwe slumps. 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 veography. Because there’s no erosion, there is no material to replenish the beach meaning the beach level will become lower.
In the wintersand and gwography were dredged from the sea bed at Poole Harbour and added to the upper parts of Swanage beach creating a wider beach. They trap material being transported by longshore drift to create larger beaches which can then absorb wave energy to reduce erosion rates.
Towards the northern end of the bay the cliffs are covered in vegetation, stablising them and protecting them from erosion. 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. Biological weathering caused by the vegetation on the top of the headland is also breaking up the rock.
Dorset – case study of a UK coastal landscape
It connects the Isle of Portland to the mainland. The limestone cliffs forming the back wall of geograpgy cove are vulnerable to mass movement and sometimes experience small slides and slumps.
Erosion by waves opened up a crack in the headland, which then became a cave and eventually an arch. Groynes are wooden or stone barries which are built at right angles to the coast. They reflect waves back out to sea preventing erosion of the cliff.
The spit has continued to join to the Isle of Portland.
Coastlines where sawnage geology alternates between bands of hard and soft rock which are perpendicular to the shore are called discordant coastlines. Dorsert is located on the southern coast of the UK. The alternating bands of hard and soft rock run parallel to the coast. This means waves are slowed, reducing erosion and will help to protect proprties and cliffs.
An Examination of the coast line in the Swanage Area. – GCSE Geography – Marked by
It has been created by longshore drift. This is made of chalk which is a harder rock. New timber geogralhy were installed on Swanage beach in and have reduced the loss of beach material. 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.
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. Erosion is the dominant process in the bay with the beach losing material year vcse year. How are geomorphic processes creating coastal landforms? How is human activity, including mangement, working in combination with geomorphic processes to shape the landscape?
Sea wall Concrete sea walls are in place along most of Swanage beach.
Coastal landforms – AQA – Revision 3 – GCSE Geography – BBC Bitesize
Dorset is located in the south of England. The soft rock is made of clay and sands, and the hard rock is chalk and limestone.
A concordant coastline has the same type of rock along its length. The arch is gradually being worn away by mechanical, chemical and biological weathering. The entrance to the cove is narrow where the waves have cut through weaknesses in the resistant limestone.