Wind Erosion2/17/12 12-2 pgs. 304-308 IN: What are some ways that waves shape the shoreline?
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Wind Erosion 2/17/12 12-2 pgs. 304-308 IN: What are some ways that waves shape the shoreline?
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Transcript of Wind Erosion2/17/12 12-2 pgs. 304-308 IN: What are some ways that waves shape the shoreline?
Terms:Saltation deflation abrasion dune
loess Objectives:• Explain why areas with fine materials are
more vulnerable to wind erosion.• Describe how wind moves sand and finer
materials.• Describe the effects of wind erosion.
Saltation – the movement of sand-sized particles by a skipping and bouncing action in the direction the wind is blowing.
All the material carried by the wind is eventually deposited downwind.
The faster the wind blows, the more materialand the heavier the particles it can carry.
Loess – thick deposits of windblown, fine-grained sediment.
Very fine sediment, most came from last ice-age and are blown large distances, makes great soil for crops