TERMIUM Plus®

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STRUCTURAL UNCONFORMITY [1 record]

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Alphabetical list of terms

Record 1 2007-09-17

English

Subject field(s)
  • Tectonics
DEF

An unconformity between two groups of rocks whose bedding planes are not parallel or in which the older underlying rocks dip at a different angle, (usually steeper) than the younger overlying strata.

OBS

angular unconformity; angular discordance; clinounconformity; orogenic unconformity; structural unconformity: terms used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • clino-unconformity

French

Domaine(s)
  • Tectonique
DEF

[Discordance] caractérisée par une différence de pendage appréciable entre la série discordante et la série plus ancienne [et qui] traduit l'existence d'une phase tectonique dont l'âge est compris entre la dernière formation tectonisée et la première formation non affectée.

OBS

discordance angulaire : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Tectónica
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