1. THE SOUTH DOWNS
ESCARPMENT

2. Where is the South Downs Escarpment?
Map copyright Ordnance Survey
The area referred to in this presentation is here

3. Physical Features on O.S. Map
Clay Vale
Springs
Scarp slope
Dip slope
Escarpment
Dry Valleys
Map copyright Ordnance Survey

4. The next slide is taken from here..
Looking west along the scarp slope
Map copyright Ordnance Survey

5. Physical features…. name them5
River Gap 2
Escarpment
Dip Slope 4 1. 3
Vale
Scarp Slope 6
Spring Line 6

6. Block diagram…physical features
River gap
Dip Slope
Spring line
Escarpment
Vale
Scarp slope
Porous chalk
Impermeable clay

7. A Closer Look at the Vale…..
Look at the photo and describe the relief
What rock underlies the vale?
first on the photo

8. …and then on the map describe the relief remember to refer to
look at the contours and
describe the relief
remember to refer to
altitude and gradient
is surface drainage
present or absent? Why?
Map copyright Ordnance Survey
what is happening here?
..and here?

9. One of the springs

10. A Closer Look at the Escarpment
How do the scarp and dip slopes differ?
What rock underlies the escarpment?
first on the photo

11. Is surface drainage present or absent? Why?
…and then on the map
The Scarp Slope
Look at the contours and
describe the relief
The Dip Slope
Look at the contours and
describe the relief
Is surface drainage present or absent? Why?

12. Another feature of the escarpment…
Is photographed from here
Map copyright Ordnance Survey

13. What is this feature? When and how were features like this created?
‘V’ shaped profile
..but no evidence of a stream
It’s the dry valley called Devil’s Dyke

14. How has this landscape influenced Human Geography?
Farming
Recreation
Communications
Settlement

15. Prehistoric and Ancient Settlement
Why would settlement have avoided the vale at that time?
Where was it located and why?
Map copyright Ordnance Survey

16. Where is it located and why?
Modern Settlement
Where is it located and why?
Map copyright Ordnance Survey

17. intensive or extensive?
Farming
intensive or extensive?
arable or pastoral?
vale
escarpment

18. Communications Explain the routes of : the minor road network and
the South Downs Way
Map copyright Ordnance Survey

19. What evidence is there of recreational land use on the map?
Map copyright Ordnance Survey

20. Now remember! Gap Escarpment Vale Dip slope Modern settlement
Chalk
Vale
Dip slope
Modern settlement
Scarp slope
Spring line
Clay
Prehistoric settlement