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SUBDUCTION [18 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2021-07-14

English

Subject field(s)
  • Plate Tectonics
  • Vulcanology and Seismology
DEF

[The] place where an oceanic tectonic plate dives under either a continental plate or under another oceanic plate.

CONT

A subduction zone is typically marked by an oceanic trench, lines of volcanoes and crustal deformation associated with mountain building.

OBS

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

PHR

Active, extinct subduction zone.

PHR

Subduction zone boundary.

French

Domaine(s)
  • Tectonique des plaques
  • Volcanologie et sismologie
DEF

Zone de convergence où une portion de la lithosphère océanique s'enfonce sous une plaque continentale ou une autre plaque océanique, avec formation d'une fosse océanique et accompagnée d'un volcanisme actif.

OBS

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

PHR

Zone de subduction active. Ancienne zone de subduction.

PHR

Frontière formée de zones de subduction.

Spanish

Campo(s) temático(s)
  • Tectónica de placas
  • Vulcanología y sismología
DEF

Zona marginal en la que una placa cortical es absorbida, bajo otra placa, por el manto superior, a lo largo de una superficie sísmica de Benioff.

Save record 1

Record 2 2011-12-22

English

Subject field(s)
  • Plate Tectonics
CONT

Ampferer (A) subduction is when the continental crust plunges, as opposed to Benioff (B) subduction where it is the ocean crust that subducts.

CONT

A-subduction. - The movement of one continental lithospheric plate under another (subduction) in a collision zone, with the separation of part or all of the upper crust from the lower crust and mantle. The denser material subducts normally whilst the buoyant material can underthrust or overthrust the crust of the overriding plate. A-subduction, named after O. Ampferer, has also been called "delamination," and is contrasted with B-subduction, named after Hugo Benioff, in which oceanic lithosphere subducts. A-subduction is postulated to involve shortening of a maximum of only a few hundred kilometres, whereas B-subduction can recycle thousands of kilometres of oceanic crust and upper mantle.

OBS

Ampferer subduction; A subduction: terms used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • Ampferer type subduction

French

Domaine(s)
  • Tectonique des plaques
CONT

[...] l'ensemble des métamorphismes et du magmatisme en question doit être interprété comme lié à une subduction de type A, c'est-à-dire à la subduction continentale d'une partie de la lithosphère européenne sous les zones alpines, la zone de subduction elle-même correspondant au bassin de la molasse [...] qui contient jusqu'à 6 km de sédiments détritiques.

OBS

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

Spanish

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Record 3 2011-04-15

English

Subject field(s)
  • Plate Tectonics
  • Vulcanology and Seismology
DEF

A narrow, deep depression in the seafloor representing the line of subduction of an oceanic lithosphere plate beneath the margin of a continental lithosphere plate ...

Key term(s)
  • deep sea trench

French

Domaine(s)
  • Tectonique des plaques
  • Volcanologie et sismologie
CONT

Le lieu d'affrontement entre deux plaques se matérialise topographiquement par une fosse océanique. Il s'agit d'une dépression allongée où l'on mesure les plus grandes profondeurs de la surface terrestre. [...] Les fosses océaniques sont les marqueurs topographiques du processus de subduction. Elles sont les limites destructrices des plaques.

Spanish

Campo(s) temático(s)
  • Tectónica de placas
  • Vulcanología y sismología
DEF

Depresión alargada en los fondos de mar profundo, que puede extenderse a lo largo de miles de kilómetros.

CONT

Las fosas abisales suelen formarse junto a archipiélagos alargados y a costas en las cuales existen grandes sistemas montañosos en curso de formación.

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Record 4 2011-04-11

English

Subject field(s)
  • Plate Tectonics
DEF

The sinking of an oceanic lithospheric plate beneath an overriding lithospheric plate at a convergent plate boundary.

OBS

The overriding plate may be oceanic or continental.

OBS

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

PHR

Subduction of oceanic plates beneath continents.

PHR

Plate subduction.

French

Domaine(s)
  • Tectonique des plaques
DEF

Enfoncement d’une plaque lithosphérique océanique sous une plaque lithosphérique chevauchante à la limite de plaques convergentes.

OBS

La plaque chevauchante peut être une plaque océanique ou une plaque continentale.

OBS

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

PHR

Subduction de plaques océaniques sous les continents.

PHR

Subduction de plaque.

Spanish

Campo(s) temático(s)
  • Tectónica de placas
DEF

Fenómeno geológico según el cual una placa se hunde bajo otra contigua, hasta ser absorbida por el manto.

CONT

La superficie a lo largo de la cual se verifica el fenómeno se denomina superficie de Benioff, y la zona en la que ello ocurre se llama de subducción o de consunción.

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Record 5 2011-01-30

English

Subject field(s)
  • Plate Tectonics
CONT

Larter and Barker suggest that the Phoenix plate may be an example of "pivoting subduction": they hypothesise a larger slab pull force in the northeast of the plate, where the subducting lithosphere was much older than in the southwest, that created a couple to rotate it about a point to the southwest.

OBS

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

French

Domaine(s)
  • Tectonique des plaques
OBS

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

Spanish

Save record 5

Record 6 2011-01-06

English

Subject field(s)
  • Tectonics
OBS

B-subduction complex: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique
OBS

complexe de subduction de type B : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 6

Record 7 2010-12-21

English

Subject field(s)
  • Plate Tectonics
DEF

[A] zone between two lithospheric tectonic plates, in which the sinking plate is oceanic.

CONT

Benioff subduction zones ... characterize convergent margins. They are areas of great seismicity. They are associated with deep-sea trenches and they dip toward and beneath volcanic arcs, along which earthquakes foci cluster.

French

Domaine(s)
  • Tectonique des plaques
Key term(s)
  • zone de subduction de Benioff

Spanish

Save record 7

Record 8 2009-07-24

English

Subject field(s)
  • Oceanography
  • Plate Tectonics
OBS

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

Key term(s)
  • intra-oceanic subduction

French

Domaine(s)
  • Océanographie
  • Tectonique des plaques
OBS

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

Spanish

Save record 8

Record 9 2009-06-22

English

Subject field(s)
  • Plate Tectonics
DEF

Intensely sheared and fractured assemblages of rocks with many overthrust faults, characteristic of lithosphere plate margins above subduction zones.

CONT

A subduction complex, by its very nature, is a complete mess. Essentially, this is material that has been scraped off the subducting plate and piled up against the continental margin. What's fantastic about California is that the San Andreas transform has preserved the elements of the Mesozoic convergent margin for us to see.

OBS

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

French

Domaine(s)
  • Tectonique des plaques
CONT

L'association pétrotectonique des domaines côtier et intermédiaire du Chili peut être interprétée comme un complexe de subduction qui s'est accolé à la bordure Pacifique du Gondwana au cours du Paléozoïque tardif [...]

OBS

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

Spanish

Save record 9

Record 10 2009-06-22

English

Subject field(s)
  • Plate Tectonics
CONT

At some convergent plate margins, the overriding plate scrapes a thick mass of sediment off the descending plate. This process of subduction accretion ..., adds material to the edge of the overriding plate. In California, for example, subduction accretion formed a large part of the coastal mountain ranges.

OBS

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

French

Domaine(s)
  • Tectonique des plaques
OBS

Cette tectonique argilocinétique est contrôlée par la position de cette région, à la jonction entre la Meseta stable au sud, le domaine Rifain au nord et le prisme d'accrétion généré par la subduction du plancher atlantique sous les plaques Africaine et Européenne.

OBS

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

Spanish

Save record 10

Record 11 2009-06-10

English

Subject field(s)
  • Plate Tectonics
DEF

One of two types of converging plate boundaries which occurs when one plate plunges under another overriding plate.

OBS

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

French

Domaine(s)
  • Tectonique des plaques
CONT

La mine Tuo-Yandong se situe dans un arc insulaire carbonifère localisé au Nord de la zone orogénique Jueluotage [...] à la limite entre les unités tectoniques IV et VII [...] qui est considérée comme une limite de subduction [...]

Spanish

Save record 11

Record 12 2009-05-07

English

Subject field(s)
  • Plate Tectonics
CONT

A fore-arc depression lies between the Coast Range of Oregon and Washington and the Cascade volcanic arc. Alternatively it may reflect lithosphere flexure subsidence generated from subduction uplift along the margin.

OBS

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

French

Domaine(s)
  • Tectonique des plaques
OBS

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

Spanish

Save record 12

Record 13 2008-11-06

English

Subject field(s)
  • Plate Tectonics
  • Vulcanology and Seismology
DEF

A thrust-type earthquake caused by slip between converging plates in a subduction zone.

OBS

Such earthquakes usually occur on the shallow part of the boundary and can exceed magnitude 8.

OBS

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

French

Domaine(s)
  • Tectonique des plaques
  • Volcanologie et sismologie
DEF

Séisme dont le foyer se trouve dans la zone de subduction et qui résulte du glissement d'une plaque sous une autre.

CONT

Le dernier grand séisme de subduction connu est survenu en 1843.

OBS

séisme dans une zone de subduction : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 13

Record 14 2008-11-06

English

Subject field(s)
  • Plate Tectonics
DEF

The region between converging plates, one of which dives beneath the other.

CONT

The Cascadia subduction zone boundary ... is an example.

OBS

subduction zone boundary: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique des plaques
CONT

Forces aux limites de plaques dans les zones de subduction et les zones de compression arc-fosse.

OBS

Les plaques] peuvent se déplacer horizontalement sur leur substratum plus visqueux (moins rigide) : l'asthénosphère. Les limites entre elles (frontières) sont de trois types : rift océanique, zone de subduction et faille transformante.

OBS

frontière formée de zones de subduction : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 14

Record 15 2006-11-15

English

Subject field(s)
  • Tectonics
OBS

orthogonal underthrust plate: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Tectonique
OBS

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

Spanish

Save record 15

Record 16 2006-11-15

English

Subject field(s)
  • Tectonics
CONT

These differences were most likely caused by the Late Cretaceous change from nearly orthogonal subduction to a dextral-oblique convergent margin.

OBS

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

French

Domaine(s)
  • Tectonique
CONT

Ces différences sont interprétées comme le résultat du changement au Crétacé tardif d'une tectonique de subduction quasi orthogonale à une tectonique de convergence oblique dextre.

OBS

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

Spanish

Save record 16

Record 17 2006-11-15

English

Subject field(s)
  • Tectonics
CONT

Oblique Subduction.- ... studies of the kinematics and mechanics of trench-parallel translation and rotation of crustal blocks within plates that are being obliquely underthrust during subduction have demonstrated that oblique convergence is sometimes partitioned into two components, one directed more orthogonal to the local strike of a trench than the local plate convergence vector, and the other directed parallel to local strike of the trench. The former, convergent component is accommodated through subduction. ... Assuming that oblique subduction was as common in the geologic past as it is in the present, it has undoubtedly played an important role in the disassembly and reamalgamation of continental margins through translation and rotation of allochthonous (e.g. displaced) terranes.

OBS

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

French

Domaine(s)
  • Tectonique
CONT

Au niveau des zones de subduction oblique, la partition du mouvement se traduit souvent par une déformation importante caractérisée par la coexistence de chevauchements avec de grandes failles décrochantes.

OBS

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

Spanish

Save record 17

Record 18 2004-01-22

English

Subject field(s)
  • Tectonics
CONT

... lithospheric mantle affected by earlier subduction or rifting events ...

French

Domaine(s)
  • Tectonique
CONT

[...] un manteau lithosphérique qui conserve la trace de processus de subduction ou de rifting antérieurs [...]

Spanish

Save record 18

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