Dunes. A dune is the pile of windblown sand that develops over time. The gentler slope of a dune, located on the side from which the wind blows, is called the windward side. The steeper slope, on the side protected from the wind,is called the leeward side. The conditions under which a dune forms determine its shape.

Answer: Loess. Explanation: Loess is usually defined as the deposits of fine-grained silt particles whose size ranges between the clay and sand particles.

A sand dune is a deposit of wind-blown sand. Some sand dunes in the Namib are more than 200 meters high and 15 kilometers long.

As wind blows over the ground it picks up small particles of sediment in the process of deflation. The stronger the wind, the larger the particles it erodes. Wind causes erosion through ablation and abrasion.

Wind erosion uses two main mechanics: abrasion and deflation. Deflation is further broken down into three categories: surface creep, saltation and suspension.

Powered by. In some parts of the world, windblown dust and silt blanket the land. This layer of fine, mineral-rich material is called loess. Loess is mostly created by wind, but can also be formed by glaciers. When glaciers grind rocks to a fine powder, loess can form.

Loess soils are among the most fertile in the world, principally because the abundance of silt particles ensures a good supply of plant-available water, good soil aeration, extensive penetration by plant roots, and easy cultivation and seedbed production.

What is another word for loess?

The Yellow River was so named because the loess forming its banks gave a yellowish tint to the water. The soil of this region has been called the “most highly erodible soil on earth”.