Definitions

from The Century Dictionary.

  • Pertaining to or effected by means of aggradation.
  • Effecting an upbuilding of sediments: contrasted with degradational agencies or those which remove material.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective geology Pertaining to or formed by aggradation.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

aggradation +‎ -al

Examples

  • Although there are numerous degradational/aggradational cycles within the Chinle Formation, a single unconformable horizon within or at the base of the Sonsela Member that can be traced across the entire western United States (the "Tr-4 unconformity") probably does not exist.

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