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this is about landslides

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  1. 1. Landslides By: Josh Breimayer Ed 205-09
  2. 2. Main Slide <ul><li>Main Factors that cause landslides </li></ul><ul><li>Slope </li></ul><ul><li>Precipitation </li></ul><ul><li>Vegetation </li></ul><ul><li>Soil </li></ul><ul><li>Different Types of Landslides </li></ul><ul><li>Bad Place to Build </li></ul><ul><li>Video </li></ul><ul><li>Video 2 </li></ul><ul><li>Author </li></ul><ul><li>Resources </li></ul><ul><li>Concept Map </li></ul>
  3. 3. Main Factors <ul><li>There are four main factors that contribute to a landslide: </li></ul><ul><li>Slope </li></ul><ul><li>Precipitation </li></ul><ul><li>Vegetation </li></ul><ul><li>Soil </li></ul>
  4. 4. Slope <ul><li>The first factor that contributes to a landslide is the slope. The slope of a landform is a major factor in determining whether a landslide is likely to occur. The steeper the slope, the larger the threat. </li></ul>
  5. 5. Precipitation <ul><li>The second factor that contributes to a landslide is precipitation. Soil is typically more mobile when it is wet. This is not always the case, but most of the time it is. A large amount of precipitation that a landform is not used to receiving can trigger a landslide. </li></ul>
  6. 6. Vegetation <ul><li>The third factor is vegetation. A slope that has little to no vegetation is typically less stable. Large trees and plates act as an anchor on a hill. They absorb some of the water and also keep the sediment from eroding down the hill. </li></ul>
  7. 7. Soil <ul><li>The fourth and final main factor is soil. There are some sediments that are typically more mobile than others. Rocks and sand do not typically cause landslides. Clay, silt, and mud are typically the sediments that are most mobile. </li></ul>
  8. 8. Different Kinds of Landslides <ul><li>Rotational Slump – very slow to moderate </li></ul><ul><li>Rockslide – very slow to very rapid </li></ul><ul><li>Debris Slide – very slow to very rapid </li></ul><ul><li>Earth Flow – very slow to fast </li></ul><ul><li>Creep – very slow </li></ul><ul><li>Debris Avalanche – moderate to very fast </li></ul>
  9. 9. Bad Place to Build <ul><li>This is what happens if slopes are not examined before cities are built next to them. </li></ul>
  10. 10. Video <ul><li>This a video of a landslide and a little bit about them. </li></ul>
  11. 11. Video 2 <ul><li>This is an amazing video of what landslides can do. </li></ul>
  12. 12. Author Slide <ul><li>Joshua Ted Breimayer </li></ul><ul><li>I have lived in Grand Haven my whole life. I went to Grand Haven High School and now attend Grand Valley State University. My major is Mathematics and my minor is Earth Science. </li></ul><ul><li>E-mail </li></ul>
  13. 13. Resources <ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul>
  14. 14. Concept Map