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Erosion by Mass Movement

Learn about the process of erosion and its various types, including landslides, mudslides, slumps, and creep. Discover the causes of mass movement and how it affects the landscape in Cincinnati.

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Erosion by Mass Movement

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  1. Erosion by Mass Movement Columbia Pkwy, Cincinnati

  2. Erosion : the process by which natural forces move weathered rock and soil from one place to another. • Gravity, running water, glaciers, waves, and wind can all cause erosion. • Deposition: occurs where agents of erosion lay down their sediments. • Weathering, erosion, and deposition act together in a cycle that wear down and builds up Earth’s surface.

  3. DEFINITION: Mass movement is the down-slope movement of rock and sediment due to gravitational forces. TYPES: Landslide (rapid) Mudslide (rapid) Slump (moderate) Creep (slow) Mass Movement

  4. Landslide • A landslide is a mass of rock moving down a slope

  5. The top picture shows a part of the Smokey Mountains in 1976. The bottom picture shows the same area in 1980.

  6. Mudslide • A mudslide (or mudflow) is the downslope movement of a mixture of water and soil.

  7. Slump • Slump is the downward movement of materials as one unit. • The material moves along a curved plane, it often looks like the front of a spoon.

  8. Creep • Creep is the slow downhill movement of rock and soil over time.

  9. Causes of Mass Movement Factors that allow gravity to overcome the resistance of materials on a slope are: • Saturation of water (ground becomes too wet). • Steepening of slopes by other forms of erosion or construction. • Seismic or volcanic activity. • Freezing and thawing. • Fires leaving slopes bare. • No ground vegetation.

  10. IDENTIFY THEFOLLOWING TYPES OFMASS MOVEMENT:

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