Chapter 15 Eolian Processes and Arid Landscapes

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Chapter 15Eolian Processes and Arid Landscapes
Geosystems 6e An Introduction to Physical
Geography
Robert W. Christopherson Charles E. Thomsen
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Eolian Processes and Arid Landscapes

• The Work of Wind
• Eolian (or aeolian) erosion, transportation,
  and deposition performed by wind  
• Types of Eolian Erosion
• Loess sediments left by glaciers
• Overview of Desert Landscapes  
• Eolian landforms
• Desertification expansion of desert lands at
  the expense of less arid types of land

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The Work of Wind 

• Eolian Erosion  
• Deflation the removal and lifting of individual
  particles
• Desert pavement
• ORVs
• Blowout depressions
• Abrasion the grinding or rock surfaces by
  particles in the air

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Desert Pavement
Figure 15.3
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Eolian Transport
Figure 15.6
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Eolian Deposition
Figure 15.6
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Sand Ripples
Figure 15.7
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Dune Cross Section
Figure 15.9
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Sandy Regions of the World
Figure 15.12
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Loess Regions of the World
Figure 15.14
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Loess Deposits
Figure 15.13
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Arid Regions
Figure 15.15
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Overview of Desert Landscapes  

• Desert Climates  
• Subtopical high pressure cells
• Rain shadow
• Continental areas
• Desert Fluvial Processes
• Flash floods
• Wash or arroyo
• Playa 
• Alluvial fan

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Alluvial Fan
Figure 15.18
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Overview of Desert Landscapes  

• Desert Landscapes 
• Differential weathering 

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Differential Weathering
Figure 15.20
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Basin and Range
Figure 15.23
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Desertification
Figure 15.24
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End of Chapter 15Eolian Processes and Arid
Landscapes
Geosystems 6e An Introduction to Physical
Geography
Robert W. Christopherson Charles E. Thomsen