Write in detail about the deposition process of Winds.
Answers
Wind Deposition
All the sediment picked up by wind eventually falls back to the ground. This happens when the wind slows down or some obstacle, such as a boulder or a clump of grass, traps the windblown sand sediment. Wind erosion and deposition may form sand dunes and loess deposits. When the wind strikes an obstacle, the result is usually a sand dune. Sand dunes can be seen on beaches and in deserts where windblown sediment has built up.
Sand Dunes
Sand dunes come in various shapes and sizes. Some are long, with parallel ridges, while others are U-shaped. They can be very large, or very small. Actually, some sand dunes in China are up to 500 meters tall. Sand dunes move over time. Little by little, the sand shifts with the wind from one side of the dune to the other. Sometimes, plants start to grow on the dunes. Plants can help to anchor the dune in one place.
Loess Deposits
Sediment that is finer than sand, such as particles of clay and silt, is sometimes deposited in layers far from its source. This fine, wind-deposited sediment is loess (LES). Large loess deposits are found in central China and in states such as Nebraska, South Dakota, Iowa, Missouri, and Illinois. Loess helps to form fertile soil. Many areas with thick loess deposits are valuable farmlands.