noun Etymology: ad- + gradation Date: 1898 a modification of the earth's surface in the direction of uniformity of grade by depositionaggradational adjective

New Collegiate Dictionary. 2001.

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  • Aggradation — in geology is the accumulation of sediment in rivers and nearby landforms. Aggradation occurs when sediment supply exceeds the ability of a river to transport the sediment. As an example, the quantity of sediment entering a river channel may… …   Wikipedia

  • Aggradation — En géologie, l aggradation ou exhaussement est l accumulation de sédiments dans le lit d un cours d eau et ses environs directs. L aggradation survient lorsque l apport de sédiments excède les capacités de transport du cours d eau. Par exemple la …   Wikipédia en Français

  • Aggradation — Anlandung oder auch Aggradation bezeichnet im Gegensatz zur Verlandung eine Ablagerung von Bodenmaterial, das von außen antransportiert (z. B. Kies, Sand, Lehm) und an Küsten und Ufern abgelagert wird. Die Anlandung kann der Beginn einer… …   Deutsch Wikipedia

  • aggradation — See aggrade. * * * …   Universalium

  • aggradation — noun accretion or deposition …   Wiktionary

  • aggradation —   deposition of load within river channels …   Geography glossary

  • Aggradation — Anlandung …   Universal-Lexikon

  • aggradation —    Land addition through sediment deposition [16] …   Lexicon of Cave and Karst Terminology

  • aggradation —    The building up of the Earth s surface by deposition; specifically, the accumulation of material by any process in order to establish or maintain uniformity of grade or slope; also called accretion.    Compare: degradation.    GG …   Glossary of landform and geologic terms

  • aggradation — ag·gra·da·tion …   English syllables

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