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FOLIATION PLAN AXIAL [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-10-10

English

Subject field(s)
  • Tectonics
DEF

Foliation developed in rocks parallel to the axial plane of a fold and perpendicular to the chief deformational pressure.

CONT

Foliation, as it forms generally perpendicular to the direction of principal stress, records the direction of shortening. This is related to the axis of folds, which generally form an axial-planar foliation within their axial regions.

OBS

axial plane foliation; axial planar foliation: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique
CONT

Déformées dans un régime global transcurrent dextre [...], les formations sédimentaires sont affectées par des plis en échelon de faible amplitude et par une foliation de plan axial restant dans le domaine métamorphique épizonal.

Spanish

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Record 2 2008-09-22

English

Subject field(s)
  • Petrography
  • Tectonics
CONT

Firstly, the crenulation must be analysed to determine the initial foliation, termed S1, and the overprinting subsequent foliation, termed S2. ... Eventually, the crenulation foliation overprints the S1 foliation. In extreme cases, the S2 foliation will obliterate the previous foliation, especially in wet rocks which have compositions amenable to growth of minerals at that time.

OBS

S1 foliation: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
  • Tectonique
CONT

[...] transposition dans la foliation S1 du litage initial S0 et repris par les plis de plan axial S2.

OBS

foliation S1 : terme 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)
  • Petrography
  • Tectonics
CONT

The structural surfaces are: S0 bedding, defined by sandy and slaty interbeds, the sandy beds ranging up to 3 m thick.

OBS

S0 stratification; S0 bedding: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
  • Tectonique
CONT

Ces plis sont associés à une foliation de plan axial, représentée par une surface continue et pénétrative, généralement parallèle à la stratification S0.

CONT

Sur les premiers 50-100 m, certains gabbros sont isotropes et laissent entrevoir l’ancien litage magmatique S0, celui-ci est exprimé par les zones sombres à amphiboles brunes et iddingsite respectivement méta-pyroxènes et méta-olivines qui alternent avec des niveaux clairs à plagioclase.

OBS

stratification S0 : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 3

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