TERMIUM Plus®

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MARGE RIFT [1 record]

Record 1 2008-09-13

English

Subject field(s)
  • Plate Tectonics
CONT

Passive margins can be divided into two categories: rifted margins formed during divergent plate motion, and transform margin or sheared margins ... [Decade of North American Geology, 1989, Vol.2, ch.9.]

CONT

Naldrett ... has recognized two types of komatiite-hosted nickel deposits, the first found in Archean greenstone belts, and the second in rifted, mainly Lower Proterozoic, continental margins.

OBS

rifted continental margin; rifted margin; rift margin: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique des plaques
DEF

[...] marge stable [ou marge passive] née de la divergence de deux plaques.

CONT

Naldrett [...] a reconnu deux groupes de gîtes de nickel dans des komatiites. Le premier se rencontre dans des ceintures de roches vertes de l'Archéen et le second, au sein de successions de marge continentale de divergence remontant surtout au Protérozoïque précoce.

CONT

La subsidence, associée à la formation du rift et aux stades de refroidissement qui accompagnaient la marge en dérive, a été calculée à l'aide de cartes quadrillées indiquant l'épaisseur des sédiments [...] le long des marges du Labrador [...]

OBS

marge continentale de divergence; marge de divergence; marge en dérive; marge de rift : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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