
Inceptisols are a soil order in USDA soil taxonomy. They form quickly through alteration of parent material. They are more developed than entisols. They have no accumulation of clays, iron oxide, aluminium oxide or organic matter. They have an ochric or umbric horizon and a cambic subsurface horizon. ==Suborders== ...
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http://en.wikipedia.org/wiki/Inceptisol

one of the 12 soil orders in the U.S. Soil Taxonomy. Inceptisols are soils of relatively new origin and are characterized by having only the weakest ... [3 related articles]
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http://www.britannica.com/eb/a-z/i/14

a soil so young that horizons have just begun to form: esp. prevalent in tundra areas.
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https://www.infoplease.com/dictionary/inceptisol
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