Case Study: Dorset Coastline

Question 1

Lithology at The Foreland & Old Harry Rocks

Answer 1

• Resistant chalk
• Horizontal bedding planes
• Vertical cracks

Question 2

Lithology at Swanage Bay

Answer 2

Less resistant sands and clay

Question 3

Lithology at Peveril Point

Answer 3

• Less resistant shale
• More resistant limestone
• Bedding planes
• Vertical Cracks

Question 4

Lithology at Durlston Head

Answer 4

• Resistant Portland Limestone
• Vertical cracks and crevices

Question 5

Lithology at Mupe Rocks

Answer 5

• Resistant limestone
• Bedding planes (rock strata)

Question 6

Lithology at Lulworth Cove

Answer 6

• Less resistant shales and marls
• Resistant limestone and chalk

Question 7

Lithology at Stair Hole

Answer 7

• Less resistant shales and marls
• Resistant limestone and chalk
• Severley folded rock strata

Question 8

Lithology at Durdle Door

Answer 8

• Resistant Portland and Purbeck limestone
• Faulted and folded

Question 9

Coastline structure at The Foreland & Old Harry Rocks

Answer 9

• Discordant coastline
  
  • Chalk outcrop

Question 10

Coastline structure at Swanage Bay

Answer 10

• Discordant coastline
  
  • Between headlands of chalk and limestone

Question 11

Coastline structure at Peveril Point

Answer 11

• Discordant coastline
  
  • Limestone & shale outcrop

Question 12

Coastline structure at Durlston Head

Answer 12

• Discordant coastline
  
  • Limestone outcrop

Question 13

Coastline structure at Mupe Rocks

Answer 13

• Concordant coastline
  
  • Shale behind limestone

Question 14

Coastline structure at Lulworth Cove

Answer 14

• Concordant coastline
  
  • Chalk behind shale behind limestone

Question 15

Coastline structure at Stair Hole

Answer 15

• Concordant coastline
  
  • Shales behind limestone

Question 16

Coastline structure at Durdle Door

Answer 16

• Concordant coastline

Question 17

Dip at The Foreland & Old Harry Rocks

Answer 17

No dip

Question 18

Dip at Swanage Bay

Answer 18

No dip

Question 19

Dip at Peveril Point

Answer 19

Seaward dip

Question 20

Dip at Durlston Head

Answer 20

Slight seaward dip

Question 21

Dip at Mupe Rocks

Answer 21

Steep landward dip

Question 22

Dip at Lulworth Cove

Answer 22

Landward dip

Question 23

Dip at Stair Hole

Answer 23

Landward dip

Question 24

Dip at Durdle Door

Answer 24

Slight landward dip

Question 25

Erosion Processes at The Foreland & Old Harry Rocks

Answer 25

- Hydraulic action - Abrasion - Solution

Question 26

Erosion Processes at Swanage Bay

Answer 26

- Deposition - Wave refraction in the bay

Question 27

Erosion Processes at Peveril Point

Answer 27

- Hydraulic action - Abrasion

Question 28

Erosion Processes at Durlston Head

Answer 28

- Hydraulic action - Abrasion - Solution

Question 29

Erosion Processes at Mupe Rocks

Answer 29

- Hydraulic action - Abrasion - Solution

Question 30

Erosion Processes at Lulworth Cove

Answer 30

- Hydraulic action - Abrasion - Solution

Question 31

Erosion Processes at Stair Hole

Answer 31

- Hydraulic action - Abrasion - Solution

Question 32

Erosion Processes at Durdle Door

Answer 32

- Hydraulic action - Abrasion - Solution

Question 33

Sub-aerial processes at The Foreland & Old Harry Rocks

Answer 33

- Freeze-thaw weathering - Carbonation - Mass movement e.g rock falls

Question 34

Sub-aerial processes at Peveril Point

Answer 34

- Weathering - Mass Movement

Question 34

Sub-aerial processes at Durlston Head

Answer 34

- Freeze-thaw weathering - Carbonation

Question 34

Sub-aerial processes at Mupe Rocks

Answer 34

- Weathering processes - Rock fall

Question 35

Sub-aerial processes at Lulworth Cove

Answer 35

- Weathering - Mass movement

Question 36

Sub-aerial processes at Stair Hole

Answer 36

- Weathering - Mass movement

Question 37

Sub-aerial processes at Durdle Door

Answer 37

- Weathering - Mass movement

Question 38

4 Landforms at The Foreland & Old Harry Rocks

Answer 38

- Headland - Steep, vertical cliffs - Wave cut notches & platforms - Caves, arches, stacks

Question 39

2 Landforms at Swanage Bay

Answer 39

- Bay - Beach

Question 40

2 Landforms at Peveril Point

Answer 40

- Headland - Gently sloping cliffs

Question 41

2 Landforms at Durlston Head

Answer 41

- Cliffs - Wave-cut notches and platforms

Question 42

3 Landforms at Mupe Rocks

Answer 42

- Steeply sloping cliffs - Series of sea stacks - Bay

Question 43

3 Landforms at Lulworth Cove

Answer 43

- Circular cove - Series of sea stacks - Beach

Question 44

2 Landforms at Stair Hole

Answer 44

- Cove - Shingle beach

Question 45

Landform at Durdle Door

Answer 45

Sea arch