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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 Movement of Large Amounts of Material Downhill under Gravity
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
Viaont, Italy, October 9, 1963 1800 people died.