(Redirected from Deposition (sediment))
'Deposition' is the
geological process whereby material is added to a
landform. This is the process by which wind and water create a
sediment deposit, through the laying down of granular material that has been
eroded and
transported from another geographical location.
Deposition occurs when the forces responsible for sediment transportation are no longer sufficient to overcome the forces of particle weight and friction, which resist motion. Deposition can also refer to the build up of a sediment from organically derived matter or chemical processes. For example,
chalk is made up partly of the microscopic
calcium carbonate skeletons of marine
plankton, the deposition of which has induced chemical processes (
diagenesis) to deposit further calcium carbonate.
See also
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Cementation
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Cross bedding
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Diagenesis
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Overbank
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Sedimentary rock
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Geologists
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Shen Kuo - 11th century Chinese scientist
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Georgius Agricola - 16th century German scientist