classroom presentations to accompany understanding earth, 3rd edition prepared by peter copeland and...
TRANSCRIPT
Classroom presentations Classroom presentations to accompany to accompany
Understanding EarthUnderstanding Earth, 3rd edition, 3rd edition
prepared byprepared by
Peter Copeland and William DupréPeter Copeland and William Dupré
University of HoustonUniversity of Houston
Chapter 11Chapter 11Mass Wasting
Influences on mass movementInfluences on mass movement
• Nature of slope materialsNature of slope materials
• Amount of waterAmount of water
• Angle of slopeAngle of slope
Landslide Near Landslide Near Anchorage, Alaska, Anchorage, Alaska, Caused by the 1964 Caused by the 1964
EarthquakeEarthquake
Fig. 11.7
Classification of mass Classification of mass movementsmovements
• RockfallRockfall
• RockslideRockslide
• Rock avalancheRock avalanche
• CreepCreep
• EarthflowEarthflow
• Debris flowDebris flow
• Mudflow Mudflow
• Debris avalancheDebris avalanche
• SlumpSlump
• Debris slideDebris slide
• SolifluctionSolifluction
Causes of slidesCauses of slides
• Heavy rain or snowfallHeavy rain or snowfall
• Excavation Excavation
• EarthquakesEarthquakes
Evolution of River Valley Dammed Evolution of River Valley Dammed by Landslideby Landslide
Fig. 11.21a
Before Slide
Evolution of River Valley Dammed Evolution of River Valley Dammed by Landslideby Landslide
Fig. 11.21b
After Slide
Evolution of River Valley Dammed Evolution of River Valley Dammed by Landslideby Landslide
Fig. 11.21cAfter Dam is Breached