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.
Wind primarily deposits sediment in the form of sand and silt, which can create various geological features such as dunes and loess deposits. This process, known as aeolian deposition, occurs when wind loses its energy and drops the transported materials. Factors like vegetation and topography can influence where and how these deposits accumulate.
When water loses its ability to hold sediment due to a decrease in velocity or capacity, it deposits the sediments it was carrying. This process is called sedimentation, and it can result in the formation of sedimentary layers over time.
These are called alluvial fans. They are typically composed of coarse sediment like sand and gravel, which is carried down mountainsides by fast-flowing streams and rivers and then spread out in a fan-like shape as the water loses energy and deposits the sediment.
The deposits can be cyclical as with rainfall, floods, tides, seasons.
Calcium deposits on the heels and the bottom of the feet are referred to as heel spurs. These deposits form when the plantar fascia pulls away from the heel area.
Sediment deposits on dry land can form various landforms such as sand dunes, alluvial plains, and deltas. Over time, these deposits can accumulate and be cemented together to form sedimentary rocks.
The deposits can be cyclical as with rainfall, floods, tides, seasons.
Iliac artery calcification is when there are calcium deposits forming. They form inside the artery and sometimes cause blockages. These calcifications form deposits in arteries.
When Wind deposits sediments in a location.
Iliac artery calcification is when there are calcium deposits forming. They form inside the artery and sometimes cause blockages. These calcifications form deposits in arteries.
Bank Deposits - which in other words means several deposits at a bank
Fossils, coal deposits, petroleum deposits, all of them took immense eons to form.