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ARC DIVERGENCE [1 record]

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Record 1 2008-07-28

English

Subject field(s)
  • Geomorphology and Geomorphogeny
  • Vulcanology and Seismology
CONT

Although not all of these volcanic suites are dated, there is an apparent age progression in geochemical signatures from early primitive arc to mature, and then to rifted arcs.

OBS

rifted arc: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Géomorphologie et géomorphogénie
  • Volcanologie et sismologie
DEF

Arc où a lieu un rifting.

CONT

La formation de la croûte s'est poursuivie entre environ 1860 et 1850 Ma avec la déposition du Groupe d'Aillik sur un socle largement juvénile dans un environnement d'arc de divergence ou d'arrière-arc.

OBS

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

Spanish

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