Erosion gravity

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Erosion gravity

  1. 1. Erosional Forces Gravity created by TeachPower.net This lesson is a preview of a full complete lesson and contains animation, sounds, video, and pictures that SlideShare.net does not show. To preview this lesson as it was originally intended please go to http://teachpower.net , click on the Lesson PowerPoints tab at the top, and scroll down until you see the name of this lesson in the appropriate category.
  2. 2. Gravity Erosion <ul><li>Gravity is the force that moves rock and other materials downhill. </li></ul><ul><li>Gravity causes mass movement. </li></ul><ul><ul><li>Mass movement: any process that causes sediment to move downhill. </li></ul></ul><ul><li>Different Types of Mass Movement </li></ul><ul><li>1) Landslide </li></ul><ul><ul><li>Most destructive. Occurs when rock and soil quickly slide down a steep slope. </li></ul></ul><ul><li>2) Mudslides </li></ul><ul><ul><li>Mixture of water, rock, soil that moves downhill mostly after heavy rainfall. </li></ul></ul><ul><li>3) Slump </li></ul><ul><ul><li>Mass of rock suddenly slips down a slope. This occurs mostly when water erodes away the bottom of a hill. </li></ul></ul><ul><li>4) Creep </li></ul><ul><ul><li>Very slow downhill movement of rock and soil. Occurs when water freezes and thaws in cracks in the rock underground. </li></ul></ul>

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