Albeluvisol
Sign in to savethumb|right|400px|Distribution of Albeluvisols Albeluvisol was a Reference Soil Group of the first edition (1998) and the second edition (2006) of the World Reference Base for Soil Resources (WRB). In the third edition of the WRB (2014), Albeluvisols were replaced by the broader defined Retisols. An Albeluvisol is a soil with a thin, dark surface horizon on a bleached subsurface horizon (an albic horizon) that tongues into a clay illuviation (Bt) horizon. The Bt horizon has an irregular or broken upper boundary resulting from the tonguing of bleached soil material into the illuviation horizon.
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thumb|right|400px|Distribution of Albeluvisols Albeluvisol was a Reference Soil Group of the first edition (1998) and the second edition (2006) of the World Reference Base for Soil Resources (WRB). In the third edition of the WRB (2014), Albeluvisols were replaced by the broader defined Retisols. An Albeluvisol is a soil with a thin, dark surface horizon on a bleached subsurface horizon (an albic horizon) that tongues into a clay illuviation (Bt) horizon. The Bt horizon has an irregular or broken upper boundary resulting from the tonguing of bleached soil material into the illuviation horizon. Albeluvisols correlate with Glossaqualfs, Glossocryalfs and Glossudalfs in the USDA soil taxonomy.
These soils are formed mostly in unconsolidated glacial till, lacustrine or fluvial materials or aeolian deposits such as loess. They occur on flat to undulating plains under coniferous forest or mixed forest in boreal and temperate climates with cold winters and short cool summers.
Excerpted from Wikipedia’s “Albeluvisol” article, available under the CC BY-SA 4.0 licence.