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silicate-facies iron formation [1 record]

Record 1 2001-09-27

English

Subject field(s)
  • Geochemistry
  • Metals Mining
DEF

An iron formation in which the principal iron minerals are silicates, such as greenalite, stilpnomelane, minnesotaite, and iron-rich chlorite ...

OBS

Banded iron formation is characterized by its fine layering. ... The simplest and commonest BIF consists of alternating hematite and chert layers. ... James (1954) identified four important facies of BIF. (a) Oxide facies. ... (b) Carbonate facies. ... (c) Silicate facies. ... (d) Sulphide facies.

French

Domaine(s)
  • Géochimie
  • Mines métalliques
OBS

Diagramme montrant les principaux types de formations ferrifères résultant d'une précipitation chimique; on donne aussi le faciès de sédimentation [...]. Faciès oxyde. Faciès silicate. Faciès carbonate. Faciès sulfure.

OBS

Voir aussi la fiche «faciès silicaté».

Spanish

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