l l Learning Objective l Wind Erosion l Wind Deposition
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      Wind deposits are of two distinctive types: 1. loess which is extensive blankets of silt that was once carried in suspension, and 2. dunes which are ridges of sand formed by the windís bed load.The thickest and most extensive loess deposits occur in western and northern China.Accumulations of 30 meters are common, while in certain areas the depth of the loess can be 100 meters.It is this sediment that gives the Yellow River (Huang Ho) its name.Dunes result when wind speed decreases due an obstruction in its path.This decrease in velocity allows the sand to gather since the energy for available for transport diminishes.