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CLIVAGE CRENULATION [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-03-07

English

Subject field(s)
  • Tectonics

French

Domaine(s)
  • Tectonique
OBS

Type de clivage superposé sur le clivage ardoisier ou la schistosité.

OBS

crénulation : Déformation d'une surface de stratification ou de schistosité par des microplis rapprochés, parallèles entre eux, souvent aigus.

Spanish

Save record 1

Record 2 2008-10-20

English

Subject field(s)
  • Tectonics
DEF

A type of cleavage that is superposed or slaty cleavage or schistosity, and is characterized by finite spacing of cleavage planes (spaced cleavage) between which occur thin, tabular bodies of rock displaying a crenulated cross-lamination.

OBS

slip cleavage; crenulation cleavage; shear cleavage; strain-slip cleavage: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique
DEF

Schistosité caractérisée par le développement de microplis ou de microflexures entre les pans de schistosité.

CONT

On a tous les intermédiaires entre des plis-failles et des plis semblables de type knick qui provoque une crénulation des surfaces microplissées, d'où le terme de schistosité de crénulation qu'on peut lui appliquer.

OBS

schistosité de crénulation; clivage de crénelure; clivage de crénulation; clivage de cisaillement : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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Record 3 2008-09-22

English

Subject field(s)
  • Tectonics
  • Petrography
CONT

... graded metaturbidites preserve an S2 cleavage with dextral vergence in their competent psammitic bases, and an S3 crenulation cleavage with sinistral vergence in their less-competent semi-pelitic tops.

OBS

Within 100 m of the granite contact, S3 crenulation cleavage is the dominant fabric element.

OBS

S3 crenulation fabric: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique
  • Pétrographie
CONT

Clivage de crénulation S3 développé dans une lave mafigue. Les microlithons en «S» sont formés de paillettes ondulées de chlorite et les plans de schistosité renferment des opaques et de la chlorite.

OBS

schistosité de crénulation S3 : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 3

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