TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

A volcanic center that has had an eruption of magnitude 8 on the volcano explosivity index, which is the highest level.  2, fiche 1, Anglais, - supervolcano

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Volcan ayant eu une éruption d'une magnitude de 8 sur l'échelle d'explosivité volcanique, soit l'indice le plus élevé de l'échelle.  2, fiche 1, Français, - supervolcan

Fiche 1,  Justifications,  Espagnol

Record number: 1, Textual support number: 1 CONT

Dentro del Índice de Explosividad Volcánica (o IEV por sus siglas en inglés), utilizado para medir la magnitud de una erupción volcánica en una escala de 1 a 8 grados, un supervolcán se encuentra en el último nivel.  1, fiche 1, Espagnol, - supervolc%C3%A1n

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

An isolated (or tract of) small elevation(s) on the deep seafloor. [Definition standardized by the International Hydrographic Organization.]  3, fiche 2, Anglais, - abyssal%20hill

Record number: 2, Textual support number: 1 CONT

Abyssal hills were formed as oceanic ridge. As the crust moves away from the spreading center, it cools and sinks to a lower depth. The mountainous terrain of the oceanic ridge is maintained, becoming low-lying abyssal hills at depths of more than 6, 000 meters. The hills are usually covered with a blanket of unconsolidated pelagic sediments deposited with reasonable uniformity which gradually modifies and smoothes the features but do not change the original volcanic ocean floor topography that formed at the ridge.  4, fiche 2, Anglais, - abyssal%20hill

Record number: 2, Textual support number: 1 OBS

abyssal hill: term standardized by the International Hydrographic Organization in 2008.  5, fiche 2, Anglais, - abyssal%20hill

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Élévation isolée (ou groupe d'élévations) de faible hauteur sur les fonds océaniques. [Définition normalisée par l'Organisation hydrographique internationale.]  3, fiche 2, Français, - colline%20abyssale

Record number: 2, Textual support number: 1 CONT

Les collines abyssales bordent [les plaines abyssales] vers le large [et] peuvent aussi bien former des îles ou des archipels au milieu de la plaine abyssale que s'insérer entre celle-ci et la base de l'escarpement continental.  4, fiche 2, Français, - colline%20abyssale

Record number: 2, Textual support number: 1 OBS

colline abyssale : terme normalisé par l'Organisation hydrographique internationale en 2008.  5, fiche 2, Français, - colline%20abyssale

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

Caldera formation.-A collapse is triggered by the emptying of the magma chamber beneath the volcano, usually as the result of a large volcanic eruption. If enough magma is erupted, the emptied chamber will not be able to support the weight of the volcanic edifice(the mountain) above. Fractures will form around the edge of the chamber, usually in a roughly circular shape. These ring fractures may in fact serve as volcanic vents. As the magma chamber empties, the center of the volcano within the ring fractures begins to collapse. The collapse may occur as the result of a single massive eruption, or it may occur in stages as the result of a series of eruptions. The total area that collapses may be hundreds or thousands of square kilometers.  2, fiche 3, Anglais, - caldera%20formation

Record number: 3, Textual support number: 2 CONT

Calderas can become filled with pyroclastic material and even lava. In fact, it has been suggested that caldera formation is a regular process in the growth of basalt volcanoes, such as those in Hawaii. Thus, you would have a large eruption, followed by caldera formation; the caldera is then filled over hundreds or thousands of years, built up, and then a new one is formed at a later date.  3, fiche 3, Anglais, - caldera%20formation

Record number: 3, Textual support number: 1 OBS

caldera formation: term used at Natural Resources Canada - Earth Sciences Sector.  4, fiche 3, Anglais, - caldera%20formation

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 CONT

Les caldeiras sont d'importantes dépressions volcaniques formées d'énormes éruptions cataclysmiques. Le lien entre la formation de caldeiras et l'origine des dépôts demeure peu compris. Les scientifiques ont comme objectif de démontrer qu'il est possible de déterminer la taille et l'emplacement en fonction de la façon et du moment où les caldeiras se sont formées.  6, fiche 3, Français, - formation%20de%20caldeiras

Record number: 3, Textual support number: 2 CONT

Dans le cas du Piton de la Fournaise, l'activité continue et le phénomène de formation de caldeira se produit jusqu'à nos jours, trois fois de suite, en lissant progressivement vers l'est.  7, fiche 3, Français, - formation%20de%20caldeiras

Record number: 3, Textual support number: 1 OBS

formation de caldeiras : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  8, fiche 3, Français, - formation%20de%20caldeiras

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 OBS

"Radial joints" are found near volcanic centers and domal uplifts, and many are filled with dikes. As their name implies, they are radially arranged around a center of volcanic activity.  1, fiche 4, Anglais, - radial%20joints

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 OBS

[Les diaclases] sous forme de plans convergeant vers le centre du massif [sont des] diaclases "radiales" (...)  1, fiche 4, Français, - diaclases%20radiales

Fiche 4,  Justifications,  Espagnol