illuviation
/ɪˌl(j)uːvɪˈeɪʃ(ə)n
/noun [mass noun] Soil Science
The introduction of salts or colloids into one soil horizon from another by percolating water.The study also indicates that the illuviation of clay particles and their subsequent accumulation in the Bt horizons have occurred in sodic environment....
- Clay illuviation is the process that has been most exhaustively considered in micromorphological studies.
Derivatives
illuvial
- It may possess an ‘illuvial’ concentration of silicate clay, iron, aluminium, or humus, alone or in combinations.
illuviated
- Illuviated clay is frequently found in carbonate-rich soils of arid regions.
Origin
Early 20th century: from il- 'in' + -luvial (on the pattern of alluvial) + -ation.