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12 Cards in this Set
- Front
- Back
Abrasion
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Wear away of a rock surface by particle impact.
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Deflation
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Removal of loose soil particles. May form a Lag deposit ("Desert Pavement")
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Eolian Erosion Processes
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-Abrasion
-Deflation |
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Eolian Transport Processes
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-Suspension
-Surface Creep -Saltation |
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Suspension
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-Movement without touching ground.
-Affects only smallest particles. |
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Surface Creep
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-Sliding r rolling over surface.
-Affects largest particles |
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barchan dune
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crescent shaped and usually occurs as individual dunes in a group.
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Transverse dunes
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form connected rose perpendicular to the wind.
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Parabolic dunes
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found where wind is bi-directional.
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Longitudinal dune
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forms a ridge of sand parallel to the wind.
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Two important factors in dune formation
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-Wind Direction
-Sand Supply |
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Complex/"star" dunes
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Wind that comes from many different angles and forms a complex star shape.
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