Deflation
Depending on wind strength up to three processes can lead to wind erosion and hence deflation.
The three processes of wind erosion
Diagram credit: Northern Territory Soil Conservation Manual (2009)
For more information check out the soil knowledge website
Deflation surfaces are extensive in Australia on the arid zone gibba plains. Wind has removed the fine earth material leaving behind abundant lag gravels on the surface.
Check this link for a typical photo of this type of landscape and soil surface.
