chapter 15 eolian processes and arid landscapes
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Chapter 15 Eolian Processes and Arid Landscapes. Geosystems 6e An Introduction to Physical Geography. Robert W. Christopherson Charles E. Thomsen. Eolian Processes and Arid Landscapes. The Work of Wind Eolian (or aeolian) – erosion, transportation, and deposition performed by wind - PowerPoint PPT PresentationTRANSCRIPT
Chapter 15Eolian Processes and Arid
Landscapes
Geosystems 6eAn Introduction to Physical Geography
Robert W. ChristophersonCharles E. Thomsen
Eolian Processes and Arid LandscapesThe Work of Wind
Eolian (or aeolian) – erosion, transportation, and deposition performed by wind
Types of Eolian ErosionLoess – sediments left by glaciers
Overview of Desert Landscapes Eolian landformsDesertification – expansion of desert lands at the expense of less arid types of land
The Work of Wind Eolian Erosion
Deflation – the removal and lifting of individual particles
Desert pavementORVsBlowout depressions
Abrasion – the grinding or rock surfaces by particles in the air
Desert Pavement
Figure 15.3
Eolian Transport
Figure 15.6
Eolian Deposition
Figure 15.6
Sand Ripples
Figure 15.7
Dune Cross Section
Figure 15.9
Sandy Regions of the World
Figure 15.12
Loess Regions of the World
Figure 15.14
Loess Deposits
Figure 15.13
Arid Regions
Figure 15.15
Overview of Desert Landscapes Desert Climates
Subtopical high pressure cellsRain shadowContinental areas
Desert Fluvial ProcessesFlash floodsWash or arroyoPlaya Alluvial fan
Alluvial Fan
Figure 15.18
Desert Landscapes Differential weathering
Overview of Desert Landscapes
Differential Weathering
Figure 15.20
Basin and Range
Figure 15.23
Desertification
Figure 15.24
End of Chapter 15Eolian Processes and Arid
Landscapes
Geosystems 6eAn Introduction to Physical Geography
Robert W. ChristophersonCharles E. Thomsen