TERMIUM Plus®

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CALCAREOUS ROCK [1 record]

Record 1 2004-07-12

English

Subject field(s)
  • Petrography
  • Geochemistry
DEF

A sedimentary rock containing an appreciable amount of calcium carbonate, such as limestone, chalk, tufa, or shelly sandstone.

CONT

Tungsten skarns ... form commonly in the thermal aureole at the contact between felsic, calc-alkaline intrusive and calcareous sedimentary rocks.

OBS

[These rocks] are wholly or largely calcium (lime) carbonate.

French

Domaine(s)
  • Pétrographie
  • Géochimie
DEF

Roche sédimentaire d'origine principalement organogène mais pouvant être d'origine détritique ou chimique [dont le] principal constituant est le carbonate de Ca qui doit représenter au moins 50 p. cent.

CONT

La détection des roches calcaires se fait au moyen d'acide chlorhydrique dilué qui donne une vive effervescence à froid.

CONT

Toute roche sédimentaire contenant au moins 50 % de carbonate de chaux (CaCO3) est une roche calcaire, ou, encore, un calcaire. [...] il en résulte une variété infinie de roches calcaires [...]

Spanish

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