TERMIUM Plus®

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EARTHS UPPER MANTLE [1 record]

Record 1 2011-03-28

English

Subject field(s)
  • Geology
CONT

The mantle is commonly divided into three parts: the upper mantle ... the transition zone ... and the lower mantle.

CONT

The upper mantle exists from the base of the crust downward to a depth of about 670 kilometers. This region of the Earth's interior is thought to be composed of peridotite, an ultramafic rock made up of the minerals olivine and pyroxene.

OBS

Earth's upper mantle: term extracted from the "Disarmament and Peace Keeping" glossary with permission of the United Nations Office at Geneva.

French

Domaine(s)
  • Géologie
CONT

Le manteau comprend trois parties : le manteau supérieur, une zone de transition et le manteau inférieur.

CONT

Le manteau supérieur est formé de péridotite, roche silicatée ultramafique comprenant trois ou quatre minéraux principaux, le plus abondant étant l'olivine [...] Les autres minéraux sont les pyroxènes et les grenats.

OBS

manteau supérieur de la Terre : terme tiré du lexique «Désarmement et Maintien de la Paix» avec l'autorisation de l'Office des Nations Unis à Genève.

Spanish

Campo(s) temático(s)
  • Geología
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