Saltation:
* Process: Saltation involves the bouncing and skipping of sand grains along the ground surface.
* Mechanism: Stronger gusts of wind lift sand grains a short distance, then gravity pulls them back down. This repeated bouncing action moves the grains forward.
* Grain Size: Typically involves medium-sized sand grains (0.1-0.5 mm).
* Impact: Saltation is responsible for shaping landforms, like dunes, and is a significant contributor to desert pavement formation.
Deflation:
* Process: Deflation refers to the removal of loose, fine-grained sediment, like silt and clay, by the wind.
* Mechanism: The wind lifts and carries away these smaller particles, leaving behind larger, heavier materials.
* Grain Size: Primarily affects fine-grained sediments (silt and clay).
* Impact: Deflation can lead to lowering the land surface, creating depressions or blowouts, and contributing to dust storms.
In summary:
* Saltation involves bouncing and skipping of sand grains, shaping landforms.
* Deflation involves lifting and carrying away fine sediment, lowering land surfaces.
Think of it like this: Saltation is like a bouncing ball, while deflation is like blowing dust away.
