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Mass-Wasting

Mass-Wasting . Movement of Large Amounts of Material Downhill under Gravity . Soil Creep. Soil Creep. Soil Creep. Soil Creep, California. Colluvium, San Bernardino Mountains, California. Mystery or Soil Creep?. Four Years’ Mass-Wasting, Bosnia. 100*40/2 cm 2 = 2000 cm 2 (4 years)

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Mass-Wasting

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  1. Mass-Wasting Movement of Large Amounts of Material Downhill under Gravity

  2. Soil Creep

  3. Soil Creep

  4. Soil Creep

  5. Soil Creep, California

  6. Colluvium, San Bernardino Mountains, California

  7. Mystery or Soil Creep?

  8. Four Years’ Mass-Wasting, Bosnia

  9. 100*40/2 cm2 = 2000 cm2 (4 years) = 500 cm2 /year Removed from 1 km slope per year = 500 cm2 /100,000 cm= 1 cm/200 yr= 5000 cm (50 m)/m.y. = 50m /m.y. A 1-m (100 cm) soil mantle yields 500 cm2 /year, so movement = 500 cm2 /year/100 cm= 5 cm/year Four Years’ Mass-Wasting, Bosnia

  10. Mudflows, California

  11. Urban Planning, San Diego

  12. Avalanche Chute, Colorado

  13. Rockfalls, Yosemite, California

  14. Landslide, Mount Saint Helens

  15. Slide Lake, Wyoming

  16. Sherman Glacier, Alaska, March 27, 1964

  17. Viaont, Italy, October 9, 1963 1800 people died.

  18. Yungay, Peru, May 31, 1970

  19. Yungay, Peru, May 31, 1970

  20. Lituya Bay, Alaska, July 9, 1958

  21. Lituya Bay, Before and After

  22. The Scour Line

  23. The Highest Wave Ever Recorded

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