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WIND EROSION

WIND EROSION. Where is wind erosion most common?. Deserts Beaches Plowed Fields. 2 WAYS WIND ERODES. 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.

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WIND EROSION

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  1. WIND EROSION

  2. Where is wind erosion most common? • Deserts • Beaches • Plowed Fields

  3. 2 WAYS WIND ERODES

  4. 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

  5. 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.

  6. ABRASION WIND

  7. DEPOSITION BY WIND

  8. LOESS • A thick deposit of very fine, wind eroded sediments • One of the larges deposits is near Mississippi River. • Fine as talcum powder • Fertile soil can evolve from loess deposits • Found in China, where sand and silt are blown from the deserts.

  9. LOESS DEPOSIT

  10. 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.

  11. SAND DUNES

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