TERMIUM Plus®

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LAMPROPHYRIQUE [1 record]

Record 1 1993-01-12

English

Subject field(s)
  • Geology
DEF

Said of the holocrystalline-porphyritic texture exhibited by lamprophyres, in which phenocrysts of mafic minerals are contained in a fine-grained crystalline groundmass.

French

Domaine(s)
  • Géologie
DEF

[Se dit de structures] particulières aux roches riches en minéraux ferro-magnésiens (...) ces structures sont (...) caractérisées par des gros cristaux noyés dans une pâte de type microgrenue mais avec prédominance de minéraux foncés.

Spanish

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