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Plinthite: Common forms (shapes) of plinthite

A. This is the traditional shape of reticulated mottled plinthite. The term "reticulate" has been historically used to describe plinthite, but this may not be the most common form in the US.

 

B. For soils in the southern US, plinthite less commonly takes the reticulate shape, but a spherical (nodular plinthite), lenticular (platy plinthite), or polygonal (irregular plinthite) shape.

 

C. Irregularly shaped plinthite is more common to the plinthic soils of the southeastern US. In lower amounts, plinthite is most commonly nodular, but as quantities increase, the shape is irregular (coarsely vesicular) ranging to platy at its base.

 

D. Example of a Dothan soil (Plinthic Kandiudult) with nodular plinthite in the upper subsoil, polygonal plinthite in the mid part, and platy plinthite with soil depth. Platy plinthite most commonly occurs directly above the brick red aquitard layer common to these soils.

 

For more information about a plinthic horizon, visit;

www.researchgate.net/publication/242649722_Rationale_for_...

or;

www.sciencedirect.com/science/article/pii/S00167061220043...

 

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Uploaded on July 25, 2019
Taken in January 1996