Happens when rock and soil break loose from steep slopes


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Sana08.10.2017
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Happens when rock and soil break loose from steep slopes

  • Happens when rock and soil break loose from steep slopes

  • most destructive mass movement

  • falls quickly to the bottom

  • occur in mountainous areas

  • may contain huge masses of rock













A thick mixture of sediments and

  • A thick mixture of sediments and

  • water flow down a slope

  • occur in dry areas where weathering forms thick layers of dry sediment

  • heavy rains mix with sediment to make mud

  • have enough energy to move anything in its path

  • at the bottom of slope, loses its energy of motion deposits all the sediments and debris it has been carrying













Occurs when loose material or rock layers slip downward as one large mass

  • Occurs when loose material or rock layers slip downward as one large mass

  • takes place as one large mass

  • doesn't move materials very fast or very far

  • curved scar (scarp) is left where slumped material was

  • occur because the clay under the slumped material weakens because it gets very wet

  • when it can no longer support overlying material it slips downhill











Gets its name from the way sediments slowly creep down a hill

  • Gets its name from the way sediments slowly creep down a hill

  • especially common in areas where freezing and thawing occur (ice wedging)

  • as the ground freezes, small sediments are pushed up by expanding water in the soil

  • when the soil thaws, the sediments fall downhill

  • trees, utility poles and fence posts lean or slant downhill





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