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HOLOMAFIC [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-05-09

English

Subject field(s)
  • Petrography
  • Vulcanology and Seismology
  • Mineralogy
DEF

Refers to igneous rocks consisting entirely or almost entirely of mafic minerals.

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
  • Minéralogie
DEF

Se dit de roches ignées renfermant un pourcentage élevé de minéraux noirs ferromagnésiens.

CONT

La proportion des minéraux foncés, facilement appréciable au simple coup d'œil, fournit une classification abrégée [des roches ignées], mais évidemment moins précise. On distingue les groupes suivants [...] Roches holomélanocrates 95 à 100 [% de minéraux foncés].

Spanish

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