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sheeted mafic intrusion [1 record]

Record 1 2010-12-24

English

Subject field(s)
  • Tectonics
  • Geochemistry
CONT

In the map area, some of the larger altered gabbroic sills and pretectonic sheeted mafic intrusions emplaced into Unit 1 basalt are grouped together as Unit 7 ...

OBS

The sheet intrusions define magmatic corridors all along, and concordant with, the western, northern, and eastern tectonic boundaries of the belt. The concordant and elongate shape of these bodies results from emplacement, not deformation.

OBS

sheeted mafic intrusion: term used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • sheet mafic intrusion

French

Domaine(s)
  • Tectonique
  • Géochimie
OBS

Des intrusions mafiques et ultramafiques sont également présentes sur la propriété et viennent recouper les diverses unités.

OBS

Les intrusions en feuillets définissent des corridors magmatiques qui longent de manière concordante les limites tectoniques ouest, nord et est de la ceinture. La forme concordante et allongée des feuillets résulte de la mise en place même des magmas et non de la déformation.

OBS

intrusion mafique feuilletée : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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