J. Domier, D. Johnson, Department of Geography, University of Illinois at Urbana-Champaign
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This University of Illinois site explains the process of biomantle accumulation and degradation. Detailed text includes embedded links to a glossary of technical terms and a soil profile diagram shows the process of biodynamic denudation and evolution over time. The site also features an animation that shows the processes of soil thickening and thinning with a special focus on the changing role of termites, ants, worms, and vertebrates like moles in soil mixing. The animation shows four stages of biomantle evolution which can be manually reviewed by clicking on timeline markers at the bottom of the page.