ES1602  Observe the formation of loess deposits.

Loess is fine-grained material that has been transported and deposited by the wind. The sediments come from glacial outwash plains, where glaciers deposit fine particles of silt and clay, or from desert areas that have little vegetation to anchor small particles. Prevailing wind patterns blowing across these environments can produce thick deposits of loess downwind of the area. Examine the images to interpret how loess is formed.

  !   Click each image to see a larger view.