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colluvium


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[Ge]

General term for the accumulations of sediment carried by gravity down hill slopes, including material in the process of down‐slope movement on hill sides, material trapped by barriers on hill slopes (included that behind fences, walls, or in lynchets), and deposits that build up at the foot of steep slopes and cliffs, generally in the form of fans and wedges. Old ground surfaces are often sealed beneath deposits of colluvium and can be especially important for archaeological preservation where the mechanisms that have given rise to the liberation of mobile sediments at the top of a slope (e.g. deforestation, cultivation) post‐date the active use of the ground surface at the bottom.

Subjects: Science and Mathematics — Archaeology.


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