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ANATEXIE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-07-19

English

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

Regeneration of magma by the partial melting of preexisting rocks.

CONT

Examples of anatexis are the formation of granitic melts by the partial melting of aluminous crustal rocks, and the formation of basalts by the partial melting of mantle peridotite.

CONT

The uranium mineralization is believed to have occurred during the extensional tectonic stage that followed the end of subduction, and the mineralizing solutions may have been derived from deep crustal anatexis ...

OBS

Not to be confused with "palingenesis" which refers to a more complete melting.

OBS

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

French

Domaine(s)
  • Volcanologie et sismologie
  • Pétrographie
DEF

[...] processus par lequel les roches métamorphiques fondent [...] partiellement.

CONT

[...] le magma basaltique injecté du dessous dans le sein de l'écorce continentale à la faveur de fissures volcaniques transmet aux roches encaissantes assez de calories pour les faire fondre. Cette fusion, cette «anatexie», rend d'ailleurs compte [...] de la genèse de nombreuses ignimbrites [...]

CONT

La limite supérieure du métamorphisme correspond à la fusion totale des roches. Celle-ci dépend fortement de l'hydratation du milieu, ainsi le domaine de l'anatexie (fusion partielle des roches) qui est limité par le solidus du granite [...], vient-il chevaucher le domaine du métamorphisme.

CONT

La minéralisation uranifère se serait formée durant la phase de tectonique d'extension qui a suivi la fin de la subduction; les solutions minéralisatrices ont pu être générées par une anatexie de la croûte profonde [...]

OBS

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

Spanish

Campo(s) temático(s)
  • Vulcanología y sismología
  • Petrografía
Save record 1

Record 2 2009-04-17

English

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

Adjective from anatexis.

CONT

It is possible that these granites represent anatectic material from the Lower Palaeozoic or Precambrian of the region and that some of the stratiform tin was remobilized when the granitic magmas were formed by partial melting.

PHR

Anatectic granite.

French

Domaine(s)
  • Volcanologie et sismologie
  • Pétrographie
DEF

Relatif à l'anatexie.

PHR

Granite d'anatexie.

PHR

Granite anatectique.

Spanish

Save record 2

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