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ANORTOSITA [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-06-15

English

Subject field(s)
  • Petrography
DEF

An essentially monomineralic plutonic igneous rock composed mainly of plagioclase feldspar, and little or no dark-colored minerals.

CONT

Anorthosite is a name given to a diorite that is composed almost entirely of feldspar ...

CONT

Plagioclase ... is the only essential constituent of the rock anorthosite.

French

Domaine(s)
  • Pétrographie
DEF

Roche plutonique ignée presque exclusivement constituée de plagioclases avec très peu d'éléments colorés ferro-magnésiens.

CONT

L'anorthosite est une roche plutonique claire, relativement légère [...], de structure grenue, où dominent les feldspaths calco-sodiques [...] accompagnés de pyroxène et parfois d'un peu d'olivine.

Spanish

Campo(s) temático(s)
  • Petrografía
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