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Plinthosols are iron-rich soils characterized by the presence of
Softer plinthosols are common in the wet tropics, including in the eastern Amazon basin, the central
.
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IUSS World of Soils {{soil-stub Pedology Types of soil
plinthite Plinthite (from the Greek ''plinthos'', brick) is an iron-rich, humus-poor mixture of clay with quartz and other minerals.
Plinthite is a redoximorphic feature in highly weathered soil. The product of pedogenesis, it commonly occurs as dark red re ...
, petroplinthite or pisoliths
A pisolite is a sedimentary rock made of pisoids, which are concretionary grains – typically of calcium carbonate which resemble ooids, but are more than 2 mm in diameter. These grains are approximately spherical and have concentric lay ...
.
Distribution
Softer plinthosols are common in the wet tropics, including in the eastern Amazon basin, the central Congo Basin
The Congo Basin (french: Bassin du Congo) is the sedimentary basin of the Congo River. The Congo Basin is located in Central Africa, in a region known as west equatorial Africa. The Congo Basin region is sometimes known simply as the Congo. It con ...
and parts of Southeast Asia. Dryer areas, including the Sudano-Sahelian zone, Southern African savannah, the Indian subcontinent, and parts of Southeast Asia and northern Australia feature mostly harder pisoliths and petroplinthite.
See also
*References
* IUSS Working Group WRB: World Reference Base for Soil Resources, fourth edition. International Union of Soil Sciences, Vienna 2022..
Further reading
* W. Zech, P. Schad, G. Hintermaier-Erhard: Soils of the World. Springer, Berlin 2022, Chapter 10.3.2.External links
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WRB homepage
Profile photos (with classification)
IUSS World of Soils {{soil-stub Pedology Types of soil