Geological process
The laying down of transported sediment where the carrying medium loses the energy to move it — or, for dissolved material, through evaporation and organic activity.
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Deposition is the laying down of sediment carried by wind, flowing water, the sea or ice; material may travel as pebbles, sand and mud, or as salts dissolved in water that are later deposited by organic activity or evaporation.
Evidence support: Supported by the cited evidence one source
Evidence: British Geological Survey n.d. Primary authority
Sedimentary rocks form from pre-existing rocks or from pieces of once-living organisms, out of deposits that accumulate at the Earth’s surface, and they often show distinctive layering or bedding.
Evidence support: Supported by the cited evidence one source
Evidence: U.S. Geological Survey n.d. Primary authority
Record last updated 2026-09-06. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.