The phenomenon describing the formation of a blue-grey coloured layer at the bottom of the solum due to ferrous compounds is:
Correct answer: A. Gleization
- A. Gleization
- B. Mineralization
- C. Laterization
- D. Podsolization
Explanation
Gleization occurs in waterlogged, poorly drained soil, where reducing conditions convert iron into ferrous compounds and produce a blue-grey layer. The other processes involve different soil transformations, such as organic-metal removal or intense weathering.
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