TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

AMYGDULE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-11-17

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

A gas cavity or vesicle, in an igneous rock that is filled with such secondary minerals as calcite, quartz, chalcedony, or a zeolite.

CONT

At some stage after lava has solidified, the vesicles may be filled by a variety of secondary minerals, especially calcite and zeolites. The infilled vesicles are referred to as amygdales ...

CONT

... the copper minerals fill intergranular spaces in clastic sedimentary host rocks, and spaces in the matrices of flow-top breccias and in amygdules in amygdaloidal flow tops.

OBS

The term amygdale is preferred in British usage.

OBS

amygdule : term used at Natural Resources Canada-Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
  • Minéralogie
DEF

Cavité en forme d'amande, fréquente dans les roches volcaniques, due à la présence de gaz et souvent tapissée de cristaux tardifs : zéolite, calcite, quartz.

CONT

Les basaltes et les andésites renferment du cuivre, qui peut s'exprimer dans des amygdales de la lave sous l'effet de solutions hydrothermales. [...] le cuivre [...] se concentre secondairement dans les vacuoles lors d'une phase d'altération hydrothermale.

CONT

Au sommet des coulées, se développe un faciès à amygdales, riche en cuivre. [...] Zéolites et zoïsite remplissent partiellement les amygdales.

OBS

amygdale : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Petrografía
  • Mineralogía
DEF

Vacuola en forma de almendra creada en el seno de las rocas volcánicas por una burbuja de gas y que, posteriormente a su formación, se ha llenado de calcita, ceolita o de otros minerales secundarios.

Save record 1

Record 2 1999-09-16

English

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

An elongate amygdule that occurs in a lava, towards the base of the flow, probably formed by the generation of gases or vapor from the underlying material.

CONT

Occasionally elongated cylindrical cavities (pipe amygdales) occur at right angles to the surfaces of the lava flow. They are formed when lava flows over a patch of wet ground, e.g. a spring, the steam so evolved penetrating the lava, leaving tubes behind.

OBS

The term amygdale is preferred in British usage.

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
CONT

[...] les amygdales tubulaires, emplies ou non de minéraux fumerolliens et formées lors du départ des gaz de la base de la coulée; les spiracles emplis de roches arrachées au substratum, sont asymétriques.

Spanish

Save record 2

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: