Editing Soil structure (section)

===Platy===

In platy structure, the units are flat and platelike. They are generally oriented horizontally. A special form, lenticular platy structure, is recognized for plates that are thickest in the middle and thin toward the edges. Platy structure is usually found in subsurface soils that have been subject to leaching or compaction by animals or machinery. The plates can be separated with a little effort by prying the horizontal layers with a pen knife. Platy structure tends to impede the downward movement of water and plant roots through the soil.

They are found most frequently in the C, E, Bs and K [[soil horizon|horizon]]s as well as in [[sesquioxide]]s (very old soils that are rich in iron and magnesium).