Illuviation vs. Alluviation

Difference Between Illuviation and Alluviation
Illuviationnoun
The deposition in an underlying soil layer of colloids, soluble salts, and mineral particles leached out of an overlying soil layer.
Alluviationnoun
The deposition of alluvium (sediment) by a river.
Illuviationnoun
(geology) The accumulation of suspended material and soluble compounds leached from an overlying stratum
Alluviationnoun
the phenomenon of sediment or gravel accumulating