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VERROU GLACIAIRE [1 record]

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Record 1 2004-10-22

English

Subject field(s)
  • Glaciology
  • Geomorphology and Geomorphogeny
  • Geology
DEF

A low, transverse ridge or barrier of bedrock on the floor of a glacial valley, esp. common in the Alps; it separates a rock basin from the gently sloping bottom farther downstream.

OBS

Etymol: German Riegel, "crossbar".

French

Domaine(s)
  • Glaciologie
  • Géomorphologie et géomorphogénie
  • Géologie
DEF

Barre rocheuse transversale obstruant une vallée glaciaire et la cloisonnant en ombilics.

CONT

Dans sa marche vers l'aval, le glacier peut rencontrer des rampes ascendantes. Sous l'effet de la poussée de l'amont, le glacier les franchit. On dit alors qu'il s'agit d'un «verrou».

Spanish

Campo(s) temático(s)
  • Glaciología
  • Geomorfología y geomorfogénesis
  • Geología
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