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Erosional landforms: Headlands
Match the keyword with its meaning Coast The maximum distance over which waves can travel is known as the… Fetch One of the erosion processes that involves large waves hurtling beach material at a cliff is called…….. Corrasion The landform created along stretches of less resistant coastlines (i.e. areas made of clay) are known as……. Bays The name given to waves with a weak swash but strong backwash is…… Destructive The process that involves beach material being dropped is more technically known as…. Deposition What is the name given to the predominant force affecting the coastal landscape of the UK……. Prevailing Winds The process that carries material up and down the beach is known as……. Longshore Drift What is the name of the process that carries / returns wave energy back down the beach Backswash The erosion process that breaks up large boulders into small particles by bumping them against each other is known as….. Attrition The areas of land left protruding into the sea as they are more resistant to wave erosion are called….. Headlands The force of waves compressing air into cracks in a cliff is an erosion process called… Hydraulic Action Coastlines can dissolved by salts and acids in seawater. This is also known as…. Corrosion The narrow contact zone between land and sea is more commonly called the…
For the exam ,[object Object],[object Object],[object Object],[object Object]
Headland landforms ,[object Object],[object Object],[object Object]
Headland erosion
Pop-up headlands ,[object Object]
1 2 3 4 5 6 Add a label alongside your pop-up showing what they are: fault, wave-cut notch, cave, arch, stack, stump thanks to Tony Cassidy
Step by step... ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],stump collapses undercut arch stack faults wave-cut notch cave
Old Harry Rocks and Ballard Down. What processes created this? What landform is this?
Durdle Door Arch in Dorset What landform is this? How was this created?
The Needles, Isle of Wight What landforms are these? How will they change over time?
Birchington-on-Sea What landform is this?
Case study: Old Harry Rocks
Jurassic Coast: Swanage Bay ,[object Object],[object Object],[object Object]
Old Harry Rocks, Near Swanage, Dorset Old Harry Rocks are found at Handfast Point at one of the headlands enclosing  Swanage Bay . The  chalk headland  in fact once formed a land bridge between the mainland and the Isle of Wight.
What can you tell from the map? ,[object Object]
What can you tell from the map? What might happened here in the future?.......... ................................ What feature is this? ........................... What feature is this? ...........................
YOUR CASE STUDY: Erosion landform Old Harry Rocks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Old Harry and his Wife
Old Harry Rocks ,[object Object]
Old Harry Rocks story cards ,[object Object],[object Object]
Further erosion causes the arch to enlarge and become unstable. Hydraulic action and abrasion takes place. The area is known as the Isle of Purbeck. It is on the Jurassic Coast. Chalk is a more resistant rock than clay. The wave-cut notch undercuts the cliff above, making it unstable. The stack is still eroded and will eventually collapse and become a stump. A column of rock is left standing on its own. This is a stack. Most of this area is clay.  Most wave erosion happens at the base of the cliff. This stack is called ‘Old Harry’. The arch eventually collapses under it’s own weight. A wave-cut notch is eroded along the cliff base between high and low tides. Because the headland juts out in to the sea, it takes the full force of wave erosion. When chalk is formed, it contains joints which means it has areas of weakness. Wave erosion picks out the areas of weakness in the chalk cliffs and splits rocks apart in to cracks. Caves develop on both sides of the headland. Several lines of weakness go right through the headland cliff, wave action can erode these. Small faults (cracks) are formed. Small caves are formed. Wave erosion enlarges the caves. Old Harry Rocks are in Dorset. Chalk does not crumble away as easily as clay. Caves are eroded so far back in to the headland that they meet in the middle and a hole is created that goes through. This creates an arch. Old Harry’s wife is a stump. She was created when a stack collapsed a long time ago. The headland is made of chalk.
Homework reminder ,[object Object],[object Object],[object Object],[object Object],[object Object]
Keyword bingo ,[object Object],[object Object],[object Object]
The Durdle Door arch
Lulworth Cove Stair Hole, left. Lulworth Cove, Dorset right and below Lulworth Cove is a horseshoe shaped bay that formed because the inland rocks are less resistant than the headland. It is obvious how different rock types are affected at different rates.

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Cybersecurity Workshop #1.pptxCybersecurity Workshop #1.pptx
Cybersecurity Workshop #1.pptx
 

Headlands

  • 2. Match the keyword with its meaning Coast The maximum distance over which waves can travel is known as the… Fetch One of the erosion processes that involves large waves hurtling beach material at a cliff is called…….. Corrasion The landform created along stretches of less resistant coastlines (i.e. areas made of clay) are known as……. Bays The name given to waves with a weak swash but strong backwash is…… Destructive The process that involves beach material being dropped is more technically known as…. Deposition What is the name given to the predominant force affecting the coastal landscape of the UK……. Prevailing Winds The process that carries material up and down the beach is known as……. Longshore Drift What is the name of the process that carries / returns wave energy back down the beach Backswash The erosion process that breaks up large boulders into small particles by bumping them against each other is known as….. Attrition The areas of land left protruding into the sea as they are more resistant to wave erosion are called….. Headlands The force of waves compressing air into cracks in a cliff is an erosion process called… Hydraulic Action Coastlines can dissolved by salts and acids in seawater. This is also known as…. Corrosion The narrow contact zone between land and sea is more commonly called the…
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  • 7. 1 2 3 4 5 6 Add a label alongside your pop-up showing what they are: fault, wave-cut notch, cave, arch, stack, stump thanks to Tony Cassidy
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  • 9. Old Harry Rocks and Ballard Down. What processes created this? What landform is this?
  • 10. Durdle Door Arch in Dorset What landform is this? How was this created?
  • 11. The Needles, Isle of Wight What landforms are these? How will they change over time?
  • 13. Case study: Old Harry Rocks
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  • 15. Old Harry Rocks, Near Swanage, Dorset Old Harry Rocks are found at Handfast Point at one of the headlands enclosing Swanage Bay . The chalk headland in fact once formed a land bridge between the mainland and the Isle of Wight.
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  • 17. What can you tell from the map? What might happened here in the future?.......... ................................ What feature is this? ........................... What feature is this? ...........................
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  • 21. Further erosion causes the arch to enlarge and become unstable. Hydraulic action and abrasion takes place. The area is known as the Isle of Purbeck. It is on the Jurassic Coast. Chalk is a more resistant rock than clay. The wave-cut notch undercuts the cliff above, making it unstable. The stack is still eroded and will eventually collapse and become a stump. A column of rock is left standing on its own. This is a stack. Most of this area is clay. Most wave erosion happens at the base of the cliff. This stack is called ‘Old Harry’. The arch eventually collapses under it’s own weight. A wave-cut notch is eroded along the cliff base between high and low tides. Because the headland juts out in to the sea, it takes the full force of wave erosion. When chalk is formed, it contains joints which means it has areas of weakness. Wave erosion picks out the areas of weakness in the chalk cliffs and splits rocks apart in to cracks. Caves develop on both sides of the headland. Several lines of weakness go right through the headland cliff, wave action can erode these. Small faults (cracks) are formed. Small caves are formed. Wave erosion enlarges the caves. Old Harry Rocks are in Dorset. Chalk does not crumble away as easily as clay. Caves are eroded so far back in to the headland that they meet in the middle and a hole is created that goes through. This creates an arch. Old Harry’s wife is a stump. She was created when a stack collapsed a long time ago. The headland is made of chalk.
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  • 25. Lulworth Cove Stair Hole, left. Lulworth Cove, Dorset right and below Lulworth Cove is a horseshoe shaped bay that formed because the inland rocks are less resistant than the headland. It is obvious how different rock types are affected at different rates.