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BORD EXTERNE NAPPE [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-08-12

English

Subject field(s)
  • Plate Tectonics
DEF

A convergent or active plate margin.

OBS

Sometimes an entire plate can disappear if the plates' leading edge is being consumed in a subduction trench faster than new crust is being added at the ridge on its trailing edge. When this happens, the ridge slowly moves toward the trench and the whole plate is eventually drawn down into the mantle, causing a global rearrangement of other plates and their borders.

OBS

Contrast with trailing edge.

OBS

leading edge: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique des plaques
OBS

Une fosse étroite et profonde existe tout le long de la bordure où une plaque commence à s'enfoncer sous l'autre.

OBS

partie frontale d'une nappe; bord externe d'une nappe : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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