illuviation


noun

  1. the accumulation in one layer of soil of materials that have been leached out of another layer.

noun

  1. the process by which a material (illuvium), which includes colloids and mineral salts, is washed down from one layer of soil to a lower layer

  1. The deposition of colloids, soluble salts, and suspended mineral particles in a lower soil horizon through the process of eluviation (downward movement) from an upper soil horizon.

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