Encyclopedia of Soil Science

2008 Edition
| Editors: Ward Chesworth


Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-3995-9_123

A solid mass formed by the aggregation and cohesion of particles within a soil or sediment. The mass is cemented by the precipitation of a secondary mineral of which calcite is the most common. Where repeated changes in redox potential are common in soils, Fe and Mn concretions may form (Gasparatos et al., 2004).


  1. Gasparatos, D., Haidouti, C., and Tarenidis, D., 2004. Characterization of iron oxides in Fe‐rich concretions from an imperfectly‐drained Greek soil: a study by selective‐dissolution techniques and X‐ray diffraction. Arch. Agron. Soil Sci., 50: 485–493.CrossRefGoogle Scholar

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