wind erosion. where is wind erosion most common? deserts beaches plowed fields
TRANSCRIPT
WIND EROSION
Where is wind erosion most common?
Deserts Beaches Plowed
Fields
Deflation• Erosion caused
by wind as it wears away sediments such as clay, silt, and sand
• Wind will pick up small sediments and move them
ABRASION• A type of erosion caused when
windblown or waterborne sand grains strike other sand grains and rocks, breaking off small sediments.– Similar to sandblasting– Sand grains and the rocks they
strike become pitted and polished when small fragments are broken off.
LOESSo A thick deposit of very fine, wind
eroded sedimentsoOne of the larges deposits is near
Mississippi River.oFine as talcum powderoFertile soil can evolve from loess
depositsoFound in China, where sand and
silt are blown from the deserts.
DUNES
Build up of sediments due to the sediments settle behind obstacles.
Most common wind deposits.
Form in deserts and beaches where sand is abundant.