7.3 Landscapes Shaped by Wind
Deflation <ul><li>The lifting and removal of loose material by wind </li></ul>
Desert Pavement <ul><li>A layer of coarse pebbles and gravel created when wind removed the finer material </li></ul>
Loess <ul><li>Deposits of windblown silt, lacking visible layers, generally light yellow, and capable of maintaining a nea...
dune <ul><li>A hill or a ridge of wind-deposited sand </li></ul>
Key Concept <ul><li>Wind erodes in the desert in two ways: deflation and abrasion </li></ul>
Key Concept <ul><li>The wind can create landforms when it deposits its sediments, especially in deserts and along coasts. ...
Key Concept <ul><li>Unlike deposits of loess, which form blanket-like layers over broad areas, winds commonly deposit sand...
Key Concept <ul><li>What form sand dunes assume depends on the wind direction and speed, how much sand is available and th...
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Earth science 7.3

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Earth science 7.3

  1. 1. 7.3 Landscapes Shaped by Wind
  2. 2. Deflation <ul><li>The lifting and removal of loose material by wind </li></ul>
  3. 3. Desert Pavement <ul><li>A layer of coarse pebbles and gravel created when wind removed the finer material </li></ul>
  4. 4. Loess <ul><li>Deposits of windblown silt, lacking visible layers, generally light yellow, and capable of maintaining a nearly vertical cliff. </li></ul>
  5. 5. dune <ul><li>A hill or a ridge of wind-deposited sand </li></ul>
  6. 6. Key Concept <ul><li>Wind erodes in the desert in two ways: deflation and abrasion </li></ul>
  7. 7. Key Concept <ul><li>The wind can create landforms when it deposits its sediments, especially in deserts and along coasts. Both layers of loess and sand dunes are landscape features deposited by water. </li></ul>
  8. 8. Key Concept <ul><li>Unlike deposits of loess, which form blanket-like layers over broad areas, winds commonly deposit sand in mounds or ridges called dunes. </li></ul>
  9. 9. Key Concept <ul><li>What form sand dunes assume depends on the wind direction and speed, how much sand is available and the amount of vegetation. </li></ul>

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