Figure 9: Examples of Mollisols (grassland soils) formed from loess. Both soils have mean annual precipitation of 450 mm. The Ustoll (a) has an ustic soil moisture regime and the Xeroll (b) has a ...

What do glaciers and the Sahara Desert have in common? Both are sources of silt-size particles that interact with wind, sand, and vegetation to form loess deposits. Deflation, the lifting and removal ...