TERMIUM Plus®

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FORMATION FERRIFERE [1 record]

Record 1 2011-06-14

English

Subject field(s)
  • Petrography
  • Iron and Manganese Mining
DEF

[A] stratigraphic unit of layered, bedded, or laminated rocks of all ages that contains 15 per cent or more iron, in which the iron minerals are commonly interbanded with quartz, chert or carbonate and where the banded structure of the ferruginous rocks conforms in pattern and attitude with the adjacent sedimentary, volcanic, or metasedimentary rocks.

CONT

The supracrustal rocks include siltstone, sandstone, quartzite, shale, phyllite, dolomite, iron-formation, and pillowed basalts.

PHR

Banded iron formation.

French

Domaine(s)
  • Pétrographie
  • Mines de fer et de manganèse
CONT

Les roches supracrustales se composent de siltstones, de grès, de quartzites, de shales, de phyllades, de dolomies, de formations de fer et de basaltes en coussins.

OBS

L'expression «formation de fer» (ou formation ferrifère) désigne des unités stratigraphiques de roches stratifiées ou laminées de tous âges contenant au moins 15 % de fer, dans lesquelles les minéraux de fer sont généralement interstratifiés avec du quartz, du chert ou des carbonates.

Spanish

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