TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

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Metasomatic deposits ... commonly are superimposed on older rocks of the intrusive complex by continuing igneous activity or fluid transport of elements of economic interest (among other); may be crosscutting with respect to intrusive units; and commonly have associated alteration which may be a guide to ore.  2, fiche 1, Anglais, - metasomatic%20deposit

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Metasomatic deposits ... occur in alkalic igneous rocks or surrounding country rocks, with mineralization superimposed on pre-existing rocks. The principal commodities recoverable from deposits of this type are niobium, tantalum, beryllium, yttrium, rare earths, gallium, uranium, thorium, and zirconium. Normally only one or two commodities carry the deposit economically, with others if recovered, as byproducts. The principal Canadian example is the Highwood Resources deposit at Thor Lake, NWT ...  2, fiche 1, Anglais, - metasomatic%20deposit

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... metasomatic deposits form by the reaction of fluids released during crystallization with pre-existing carbonatite or country rocks.  3, fiche 1, Anglais, - metasomatic%20deposit

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

[...] les gîtes métasomatiques proviennent de la réaction de fluides libérés au cours de la cristallisation avec des carbonatites de formation antérieure ou avec les roches encaissantes.  4, fiche 1, Français, - g%C3%AEte%20m%C3%A9tasomatique

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Phlogopite. [...] Mica fréquent des gîtes métasomatiques de contact [...]  5, fiche 1, Français, - g%C3%AEte%20m%C3%A9tasomatique

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Le terme «gisement de substitution» est [...] plus large que celui de «gisement par métasomatose», puisqu’il peut couvrir des mécanismes par précipitation, analogues à ceux des remplissages de vides filoniens.  3, fiche 1, Français, - g%C3%AEte%20m%C3%A9tasomatique

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Contact metasomatic deposits. During the crystallization of certain magmas a considerable amount of fluid escapes. This fluid may produce widespread changes near the contacts of magma with the surrounding rocks. Where such changes are caused by heat effects, without addition of material from the magma, the resulting deposits are called contact metamorphic. If appreciable material is contributed by the magma, the deposits are termed contact metasomatic.  1, fiche 2, Anglais, - contact%20metasomatic%20deposit

Record number: 2, Textual support number: 1 OBS

contact-metasomatic: Said of a rock or mineral that has originated through the process of contact metasomatism.  3, fiche 2, Anglais, - contact%20metasomatic%20deposit

Record number: 2, Textual support number: 2 CONT

Iron-rich skarn deposits ... belong to two main subtypes: (1) those referred to as contact metasomatic or replacement deposits that developed along the margins of igneous intrusions in association with limestone, dolomite, argillaceous sediments and mafic volcanic rocks; and (2) skarns of a stratiform type ....  2, fiche 2, Anglais, - contact%20metasomatic%20deposit

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 CONT

phlogopite : (...) Mica fréquent des gîtes métasomatiques de contact avec la calcite, ainsi que dans les pegmatites et dans les roches ignées riches en magnésium et pauvres en fer.  1, fiche 2, Français, - g%C3%AEte%20m%C3%A9tasomatique%20de%20contact

Fiche 2,  Justifications,  Espagnol