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A general term for a mass movement landform and a process characterized by moderately rapid to rapid (greater than 30 cm per year) downslope transport by means of gravitational stresses, of a mass of rock and regolith that may or may not be water saturated.


Removal of soluble materials from one zone in soil to another via water movement in the profile.


Material transported and deposited by wind and consisting of predominantly silt-sized particles, forming important fertile soils.

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