jurassic coast geography case study

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What Is a Case Study?

When you’re performing research as part of your job or for a school assignment, you’ll probably come across case studies that help you to learn more about the topic at hand. But what is a case study and why are they helpful? Read on to learn all about case studies.

Deep Dive into a Topic

At face value, a case study is a deep dive into a topic. Case studies can be found in many fields, particularly across the social sciences and medicine. When you conduct a case study, you create a body of research based on an inquiry and related data from analysis of a group, individual or controlled research environment.

As a researcher, you can benefit from the analysis of case studies similar to inquiries you’re currently studying. Researchers often rely on case studies to answer questions that basic information and standard diagnostics cannot address.

Study a Pattern

One of the main objectives of a case study is to find a pattern that answers whatever the initial inquiry seeks to find. This might be a question about why college students are prone to certain eating habits or what mental health problems afflict house fire survivors. The researcher then collects data, either through observation or data research, and starts connecting the dots to find underlying behaviors or impacts of the sample group’s behavior.

Gather Evidence

During the study period, the researcher gathers evidence to back the observed patterns and future claims that’ll be derived from the data. Since case studies are usually presented in the professional environment, it’s not enough to simply have a theory and observational notes to back up a claim. Instead, the researcher must provide evidence to support the body of study and the resulting conclusions.

Present Findings

As the study progresses, the researcher develops a solid case to present to peers or a governing body. Case study presentation is important because it legitimizes the body of research and opens the findings to a broader analysis that may end up drawing a conclusion that’s more true to the data than what one or two researchers might establish. The presentation might be formal or casual, depending on the case study itself.

Draw Conclusions

Once the body of research is established, it’s time to draw conclusions from the case study. As with all social sciences studies, conclusions from one researcher shouldn’t necessarily be taken as gospel, but they’re helpful for advancing the body of knowledge in a given field. For that purpose, they’re an invaluable way of gathering new material and presenting ideas that others in the field can learn from and expand upon.

Dorset – case study of a UK coastal landscape

Dorsert is located on the southern coast of the UK. It is called the Jurassic Coast as it has lots of fossils dating back to the Jurassic period.

How are geomorphic processes creating coastal landforms?

The Foreland, Old Harry and his Wife: in between the two bays (Studland and Swanage Bays) is a headland named the Foreland. This is made of chalk which is a harder rock. 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. Chemical weathering and erosion are gradually wearing down these down. Biological weathering caused by the vegetation on the top of the headland is also breaking up the rock.

Durdledoor: this is an arch which has formed on a hard limestone headland. It is unusual as it has formed parallel to the coastline. Erosion by waves opened up a crack in the headland, which then became a cave and eventually an arch. The arch is gradually being worn away by mechanical, chemical and biological weathering.

Lulworth Cove: this is a cove formed when a gap was eroded in a band of limestone. Behind the limestone is a layer of clay which is softer so more easily eroded. The limestone cliffs forming the back wall of the cove are vulnerable to mass movement and sometimes experience small slides and slumps.

Image result for chesil beach isle of portland

Chesil Beach: this is a tombolo (spit which connects mainland to an island). It connects the Isle of Portland to the mainland. It has been created by longshore drift. Behind Chesil Beach is a lagoon called The Fleet Lagoon.

How do climate and geolgy influence geomorphic processes?

How is human activity, including mangement, working in combination with geomorphic processes to shape the landscape?

As areas of the Dorset coast are being eroded, properities and infrastructure are at risk. There is also a risk for people from landslides and rockfalls. 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.

Concrete sea walls are in place along most of Swanage beach. They reflect waves back out to sea preventing erosion of the cliff. However, this creates a strong backwash which removes sediment from the beach and can lead to erosion under the wall. Because there’s no erosion, there is no material to replenish the beach meaning the beach level will become lower.

Beach replenishment

In the winter 2005-6, 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. This means waves are slowed, reducing erosion and will help to protect proprties and cliffs. However, this cost £5 million and it will need to be repeated roughly every 20 years.

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Coastal landforms

Erosional landforms include headlands, bays, caves, arches, stacks, stumps and wave-cut platforms. There are also depositional landforms such as beaches, spits and bars.

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Case study - Dorset coastline

Dorset is located in the south of England. Its coastline has examples of many erosional and depositional landforms. For example:

Swanage Bay

The area around Swanage is made up of bands of hard and soft rock. The soft rock is made of clay and sands, and the hard rock is chalk and limestone. As erosion processes take place, the clay erodes away quicker than the limestone and chalk. This forms headlands and bays , creating Swanage Bay and two headlands - Ballard Point and Durlston Head.

Old Harry Rocks

Old Harry Rocks are located on the headland between Swanage and Studland Bay. The headland is made out of chalk, a hard rock. The headland juts out into the sea, so it is more vulnerable to high-energy waves. This caused the formation of Old Harry, a stack. Over time Old Harry will collapse to form a stump.

Chesil Beach

Chesil Beach is an example of a bar. Sediment has been deposited over time to form a spit. The spit has continued to join to the Isle of Portland. Behind the spit there is The Fleet, a lagoon.

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X e F 6 ( g ) ⟶ X e F 4 ( s ) + F 2 ( g ) \mathrm{XeF}_{6}(g) \longrightarrow \mathrm{XeF}_{4}(s)+\mathrm{F}_{2}(g) XeF 6 ( g ) ⟶ XeF 4 ( s ) + F 2 ( g )

Δ H f ∘ ( k J / mol) S ∘ ( J / K ⋅ m o l ) X e F 6 ( g ) -294 300. X e F 4 ( s ) -251 146 F 2 ( g ) 0 203 \begin{matrix} \text{ } & \text{$\Delta H_{f}^{\circ}(\mathrm{kJ} /$} & \text{ }\\ \text{ } & \text{mol)} & \text{$S^{\circ}(\mathrm{J/K} \cdot \mathrm{mol})$}\\ \hline \text{$\mathrm{XeF}_{6}(g)$} & \text{-294} & \text{300.}\\ \text{$\mathrm{XeF}_{4}(s)$} & \text{-251} & \text{146}\\ \text{$\mathrm{F}_{2}(g)$} & \text{0} & \text{203}\\ \end{matrix} XeF 6 ( g ) XeF 4 ( s ) F 2 ( g ) Δ H f ∘ ( kJ / mol) -294 -251 0 S ∘ ( J/K ⋅ mol ) 300. 146 203

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The Dorset Coast

The Jurassic Coast of England

The Dorset coast is famous for its beauty. The Dorset Coast forms part of the ‘Jurassic Coast’, which extends from Exmouth in East Devon to Old Harry Rocks in Purbeck. The Jurassic Coast was awarded World Heritage Site status by UNESCO for being a place of ‘outstanding universal value’. Through its geology, cliffs, arches, stacks and stumps, the coast represents 185 million years of the Earth’s history.

The Dorset Coast, located in the south of England on the English Channel, runs from Lyme Regis in the west, past Old Harry Rocks in Purbeck to Highcliffe in the east. Excluding the shoreline of Poole Harbour, the Dorset coastline is 142 kilometres (88 mi) long.

Along the east coast of the Isle of Purbeck, the alternating layers of hard (more resistant) and soft (less resistant) rock run at right angles to the sea, creating a bay and headland formation. This is typical of a discordant coastline.

In contrast, limestone runs parallel along the southern coastline, forming a concordant coastline . the southern coast is relatively smooth in shape, where the rock is uniform. However, at Lulworth, a cove has formed where waves have broken through a weakness in the cliffs.

There is a range of coastal erosion and deposition landforms along the Dorset Coast, which can be explored in the diagram below.

The interactive map below shows some of the coastal landforms of erosion and deposition on the Dorset Coast. Click the icon in the top right corner to view in full screen.

Explore locations along the Dorset Coast in more detail:

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Old Harry Rocks, Studland

Ballard point, studland, studland beach, swanage bay, durlston head.

IMAGES

The Jurassic Coast UNESCO World Heritage Site
Geog A level Jurassic Coast case study A3 poster
Geography KS3 / GCSE: The geological significance of the Jurassic Coast
Geography students visit the Jurassic Coast
Royal Geographical Society
revision

VIDEO

Case Study Monserrat
The Jurassic Coast is a World Heritage Site on the English Channel coast of southern England
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Distinctive Landscapes Case study: Coastal Management at Overstrand

COMMENTS

What Is a Case Study?
When you’re performing research as part of your job or for a school assignment, you’ll probably come across case studies that help you to learn more about the topic at hand. But what is a case study and why are they helpful? Read on to lear...
Why Are Case Studies Important?
Case studies are important because they help make something being discussed more realistic for both teachers and learners. Case studies help students to see that what they have learned is not purely theoretical but instead can serve to crea...
What Are Some Examples of Case Studies?
Examples of a case study could be anything from researching why a single subject has nightmares when they sleep in their new apartment, to why a group of people feel uncomfortable in heavily populated areas. A case study is an in-depth anal...
Dorset
Swanage Bay: the cliffs backing Swanage Bay are made of clay, which is a soft rock. Towards the northern end of the bay the cliffs are covered in vegetation
Case study
Case study - Dorset coastline · Swanage is an example of a headland and bay · Old Harry Rocks is an example of caves, stacks and stumps · at Chesil Beach there is
Case Study of the Dorset Coast
This video examines 4 landforms along the Dorset Coast and the influence geology and climate have. Swanage Bay, Old Harry stack
Chapter 11 Case Study A: Jurassic Coast, Dorset
Study with Quizlet and memorize flashcards containing terms like Are there any examples of bays along the Jurassic Coast? If so, describe how they were
Case Study, Coastal Management: Lyme Regis, Dorset, UK
Case Study, Coastal Management: Lyme Regis, Dorset, UK. Place specific info: ✓ Lyme Regis is a small town on the South coast of the UK and makes up part of
Lyme Regis Case Study of Coastal Management
It lies on the western edge of the Dorset Coast and forms part of the Jurassic Coast, a World Heritage Site famous for its fossils and coastal landforms. The
Dorset Coast
The Jurassic Coast was awarded World Heritage Site status by UNESCO for being a place of 'outstanding universal value'. Through its geology, cliffs, arches
Case Study: The Dorset Coastline by Leia Daniels
is part of The Dorset and East Devon Coast World Heritage Site, which can also be called "The Jurassic Coast".
3.2b: Case Study of a chosen coastal landscape
BONUS BALL: How does climate change the speed at which they are formed? Jurassic Coast: Coastal Landforms Case Study
Dorset Coast
and concordant coast, as well as many different distinct coastal features.
Purbeck Coast Case Study
Case Study. The Purbeck Coast or the Swanage Coast is along the south coast of England in Dorset. This coastline has many examples of the erosional and