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Colluvium
(redirected from colluvial)

   Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
colluvium [kə′lü·vē·əm]
(geology)
Loose, incoherent deposits at the foot of a slope or cliff, brought there principally by gravity.

Colluvium 

fragmental material accumulating on mountain slopes or at the foot of slopes owing to displacement from higher areas by gravity (talus, creep, and slides) or the movement of thawing, water-saturated products of weathering in areas of permafrost.



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Correspondingly longer cropping periods and shorter fallow periods are characteristic on richer volcanic or alluvial and colluvial soils, in more accessible gardens nearer villages, and areas where population densities are high.
Overlying the mudflow, Unit 4, a silty diamicton with a relatively high carbonate and organic content, appears to have formed by a mix of natural colluvial and human transport processes, and is associated with human cultural material.
 
 
 
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