Your SlideShare is downloading. ×
IGCSE Geography: Marine Processes: Sand Dunes
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

IGCSE Geography: Marine Processes: Sand Dunes

8,772
views

Published on

http://www.geographyalltheway.com/igcse_geography/natural_environments/marine_processes/igcse_sand_dunes.htm

http://www.geographyalltheway.com/igcse_geography/natural_environments/marine_processes/igcse_sand_dunes.htm

Published in: Business, Technology

0 Comments
5 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
8,772
On Slideshare
0
From Embeds
0
Number of Embeds
11
Actions
Shares
0
Downloads
0
Comments
0
Likes
5
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Sand Dunes
  • 2.  
  • 3.  
  • 4.  
  • 5.  
  • 6.  
  • 7.  
  • 8. Sand dunes are the only important coastal landform produced by the wind. Wind blowing across a DRY sand surface is able to transport sand grains.
  • 9.  
  • 10. Blown sand accumulates around inanimate objects such as drift wood. Once buried there is no further resistance to wind flow and sand deposition ends. Sand dunes only form when vegetation (e.g. Marram grass) provides the obstacle.
  • 11.  
  • 12.
    • Conditions for dune formation:
    • A plentiful supply of sand.
    • A shallow offshore zone with gentle gradient, where large exposures of sand dry out at low tide.
    • An extensive backshore area where sand can accumulate.
    • Prevailing onshore winds.
  • 13.  
  • 14.