Relating to or caused by the building up of sediment and land through aggradation.
Adjective form of 'aggradation' using the common suffix '-al'. Developed in geological and geomorphological terminology during the 19th-20th centuries.
Geologists use this term to describe landscapes shaped by sediment buildup—deltas, floodplains, and alluvial fans are all aggradational features that grew taller over millennia.
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