Cliff collapse case study

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Cliff collapse case study

  1. 1. How can cliff collapse cause problems for people at the coast? http://www.soton.ac.uk/~imw/barteros.htm#headpage
  2. 2. Look at this geology map of Britain • We are looking for places that you think will be the most vulnerable to cliff collapses? • What makes a coastline more vulnerable to erosion? • Locate Barton-on-Sea using the textbook as a guide. These rocks are weaker and more easily eroded.
  3. 3. 26th Januaryth2009 2008 16thththMay 2008 6st July 2008 18 June 2008 2129June 2008 May
  4. 4. What is a cliff collapse? • An element of coastal erosion • Why are we studying it? – The effect that it can have on people (when people live very close to the coastal zone) – The effect on the environment A cliff collapse – how far do you think the cliff has lowered in this photograph?
  5. 5. What makes Barton-on-Sea so vulnerable to cliff collapses? • Geology (as we have already demonstrated) • Sand overlays clay in places • Sand is permeable, clay is impermeable. • How does this create problems? • Fetch? (can we remember what this is?) • Housing built close to the cliff • Problems for residents? • Interference with drainage
  6. 6. Why is the arrangement of the geology at Barton-Sea so important? How would you draw diagrams 3 & 4? Draw a diagram for 6th June 2008 (3.) and January 2009 (4.)
  7. 7. Reminder...some of the factors that can influence cliff collapse? FILCF OLEGYOG CLIFF GEOLOGY VAHYE LFINARLA HEAVY RAINFALL YETP FO VEWA TYPE OF WAVE Can you think of any others? HFCET FETCH

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