TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A bright upland or mountainous region on the surface of the Moon, characterized by a lighter color than that of a "mare", by relatively high albedo, and by a rough texture formed by large intersecting or overlapping craters. It may represent a remnant of an ancient lunar surface, sculptured largely by impact of meteorites; it may also be attributed to igneous and volcanic activity from within the Moon.  1, record 1, English, - terra

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Au télescope, et même déjà à l'œil nu, on distingue sur la Lune des régions claires, ou «Terras» [...] [L'albédo] va, pour les Terras, de 10 à 18%, exceptionnellement 23 [...] Les Terras occupent en tout 80% de la surface [...] Les Terras, et, dans une moindre mesure, les Marés, sont à leur tour criblées de cratères en immense majorité météoritiques, quelques-unes toutefois peut-être volcaniques [...]  1, record 1, French, - Terras

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The stage in the cooling of a magma during which the residual fluid is strongly enriched in water and other volatiles.  1, record 2, English, - hydrothermal%20stage

Record number: 2, Textual support number: 1 OBS

The exact limits of the stage are variously defined by different authors, in terms of phase assemblage, temperature, composition and/or vapor pressure; most definitions consider it as the last stage of igneous activity, coming at a later time, and hence at a lower temperature, than the pegmatitic stage.  1, record 2, English, - hydrothermal%20stage

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

Geologic activity involving magma and volcanic activity.  3, record 3, English, - magmatic%20activity

Record number: 3, Textual support number: 1 OBS

magmatic activity; igneous activity : terms used at Natural Resources Canada-Earth Sciences Sector.  4, record 3, English, - magmatic%20activity

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Les îles et les promontoires qui s'échelonnent le long de la côte ouest de l'Écosse sont remarquables par les vestiges qu'ils gardent d'une activité ignée intense au cours du tertiaire [...]  3, record 3, French, - activit%C3%A9%20magmatique

Record number: 3, Textual support number: 1 OBS

activité magmatique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  4, record 3, French, - activit%C3%A9%20magmatique

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

Rifting of the continental or oceanic crust within a crustal plate.  3, record 4, English, - intraplate%20rifting

Record number: 4, Textual support number: 1 CONT

Intraplate rifting has taken place along the Rio Grande valley ... during the Tertiary and Quaternary Periods.  3, record 4, English, - intraplate%20rifting

Record number: 4, Textual support number: 1 OBS

Typically applies to areas that have shown regional extensional tectonic activity away from the plate boundaries and where igneous rocks have formed intrusive sill, dikes, volcanic plugs, and other intrusive bodies.  3, record 4, English, - intraplate%20rifting

Record number: 4, Textual support number: 2 OBS

intraplate rifting: term used at Natural Resources Canada - Earth Sciences Sector.  4, record 4, English, - intraplate%20rifting

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Le rifting de la Fennoscandie au Paléoprotérozoïque s'est amorcé par une distension (rifting) intraplaque polyphase progressant vers le sud-ouest il y a 2505 à 2100 Ma, qui a été suivie d'une dérive et d'une séparation, par les océans nouvellement formés, des cratons de l'Archéen il y a 2100 à 2050 Ma.  2, record 4, French, - rifting%20intraplaque

Record number: 4, Textual support number: 1 OBS

rifting intraplaque : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 4, French, - rifting%20intraplaque

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Two concepts are important: deformation phases and metamorphic events. The first relates to specific periods during which a rock is deformed under the influence of a deviatoric stress field, leaving visible records such as folds, cleavages or lineations. Successive deformation phases may be superposed on each other leaving overprinting structures such as folded foliations, refolded folds or folded lineations.  1, record 5, English, - deformation%20phase

Record number: 5, Textual support number: 2 CONT

orogeny-A major phase of deformation, folding and metamorphism of the Earth's crust associated with continental collision, formation of mountains and igneous activity.  3, record 5, English, - deformation%20phase

Record number: 5, Textual support number: 1 OBS

phase of deformation: term used at Natural Resources Canada - Earth Sciences Sector.  4, record 5, English, - deformation%20phase

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

plissement : Phase de déformation se traduisant notamment par des plis.  2, record 5, French, - phase%20de%20d%C3%A9formation

Record number: 5, Textual support number: 1 OBS

phase de déformation : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  3, record 5, French, - phase%20de%20d%C3%A9formation

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

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, record 6, English, - metasomatic%20deposit

Record number: 6, Textual support number: 2 CONT

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, record 6, English, - metasomatic%20deposit

Record number: 6, Textual support number: 3 CONT

... metasomatic deposits form by the reaction of fluids released during crystallization with pre-existing carbonatite or country rocks.  3, record 6, English, - metasomatic%20deposit

Record 6,  Textual support,  French

Record number: 6, 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, record 6, French, - g%C3%AEte%20m%C3%A9tasomatique

Record number: 6, Textual support number: 2 CONT

Phlogopite. [...] Mica fréquent des gîtes métasomatiques de contact [...]  5, record 6, French, - g%C3%AEte%20m%C3%A9tasomatique

Record number: 6, Textual support number: 1 OBS

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, record 6, French, - g%C3%AEte%20m%C3%A9tasomatique

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Contact metamorphism in which the mineralogic changes are largely the result of chemical activity of gases emanating from igneous bodies.  1, record 7, English, - pneumatolytic%20metamorphism

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Métamorphisme de contact accompagné d'un fort métasomatisme.  1, record 7, French, - m%C3%A9tamorphisme%20pneumatolytique

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

Those processes associated with igneous activity that involve heated or superheated water, esp. alteration, space filling, and replacement.  2, record 8, English, - hydrothermal%20processes

Record number: 8, Textual support number: 1 CONT

The existence of tin metallogenic provinces suggests that parts of the upper mantle were ... relatively richer in tin, and that this tin has been progressively added to the crust where it has been recycled and further concentrated by magmatic and hydrothermal processes.  3, record 8, English, - hydrothermal%20processes

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Ensemble des phénomènes géologiques relatifs à la production et à la circulation des eaux minérales chaudes.  2, record 8, French, - hydrothermalisme

Record number: 8, Textual support number: 1 CONT

Le principal phénomène minéralisateur lié au volcanisme est l'hydrothermalisme.  3, record 8, French, - hydrothermalisme

Record 8,  Textual support,  Spanish