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Bilingual glossary of geology

Unconformity Discordance

A surface marking a substantial break or gap in the geological record; represents a major period of erosion or non-deposition.

Themes:
  Dating methods and geological time scale

Related words:
  Conformable (Stratigraphic Context)
  Disconformity
  Angular Unconformity
  Nonconformity
  Paraconformity