It's called sedimentation. And erosion is when the rock is worn away by the water, and wind and becomes sediment.
The process in which ice, wind and gravity drop newly formed sediments is called sedimentation.
The process in which water, ice, wind, and gravity drop newly formed sediments is called deposition. Deposition occurs after weathering and erosion, where the carrying agents lose energy and the sediments settle in new locations. This contributes to the formation of various landforms over time.
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