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Ch. 5: Wind & Deserts P
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Deserts Geologic processes in arid climates Weathering
Not as effective as in ________regions ___________weathering dominates & forms unaltered rock and mineral fragments Some ___________weathering does occur Clay forms Thin soil forms
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Geological processes in arid climates
How are streams in arid regions different than streams in humid regions?
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Deserts: Role of water in arid climates
How is Desert rainfall different than rainfall in humid regions in its effects? Most erosional work in a desert is done by ______________________________________
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What are some of the common false myths about deserts?
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Running Water in Deserts: Depositional features
Interior drainage into basins produces depositional features such as: Alluvial fans and bajadas Explain the formation of an alluvial fan _____________________________________ ____________________________________ Playas and playa lakes
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Label Desert Landscape
Figure 6.27 A
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Deserts :Wind Erosion Wind erodes material by: Deflation:
Lifting of loose material Process of wind erosion that produces these features ______________ Abrasion: happens when ________________ __________________________________
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Explain the formation of desert pavement & why disturbing desert pavement can cause further erosion
Figure 6.32
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What is a ventifact and how does it show it was shaped by the wind?
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Deserts: Depositional Features
Types of wind deposits Loess: ______________________________ Dunes: _____________________________ Characteristic features of all dunes __________________ & _________________ d
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Describe the Formation & migration of sand dunes
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What causes wind to deposit sediment
What causes wind to deposit sediment? How does this usually happen in nature?
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Sand dune types: Label and describe
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