Encyclopedia of Soil Science

2008 Edition
| Editors: Ward Chesworth

Residua system of weathering

Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-3995-9_483

The compositional system SiO 2–Al 2O 3–Fe 2O 3–H 2O, so called because it contains within it, the common end points (or residua) of prolonged weathering, such as Ferralsols, laterites, bauxites, and all soil horizons such as the albic and oxic horizons made up predominantly of some combination of quartz, 1:1 sheet silicates, simple aluminosilcate amorphous (or short range order) phases, and Fe and Al hydroxides.


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© Springer 2008