Continued high winds will pick up dust and silt particles and blow clouds of them cross-country until the wind dies down and the dust and silt fall to earth. Sometimes, especially where I live in North Idaho, the loess (luss) was formed into what look like sand dunes. Dust dunes, I guess.
loess
Loess
loess it is pronounced as less
It is a sand dune.
A deposit of very fine wind blown dust in river valleys.
Loess
loess
Loess
Loess is very fertile while sand is not
nebraska
Your question doesn't make sense to me . . . maybe you meant, "How does a loess (luss) deposit form?" Loess is a deposit of dusty silty dirt that has been blown into an area from a different location. It often deposits in the shape of sand dunes. The "Palouse Loess Deposit" around Pullman, WA and Moscow, ID is a great example of dune-shaped loess deposits.
yes
loess it is pronounced as less
loess it is pronounced as less
The English word for Loess is actually also loess, a word that doesn't come up often in everyday speech. Loess means "A buff to gray windblown deposit of fine-grained, calcareous silt or clay" --credit to dictionary.reference.com
It is a sand dune.
loess