TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PIERCEMENT DOME [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-04-21

English

Subject field(s)
  • Tectonics
  • Petroleum Deposits
DEF

A salt dome in which the salt core has broken through the overlying strata until it reaches or approaches the surface.

CONT

A piercement salt dome is one that has been pushed up so as to penetrate the overlying sediments, leaving them truncated.

French

Domaine(s)
  • Tectonique
  • Gisements pétrolifères
DEF

[...] sommet du dôme de sel se situant entre la surface du sol et 600 m de profondeur.

Spanish

Save record 1

Record 2 2008-03-06

English

Subject field(s)
  • Tectonics
DEF

A dome or anticlinal fold in which the overlying rocks have been ruptured by the squeezing out of plastic core material.

CONT

Diapirs in sedimentary strata usually contain cores of salt or shale; igneous intrusions may also show diapiric structure.

OBS

Some diapirs ... pierce through the cover and flow out on the surface as salt glaciers.

French

Domaine(s)
  • Tectonique
DEF

Anticlinal dont les couches les plus internes ont percé l'enveloppe.

CONT

Les plis diapirs sont des plis anticlinaux à noyau perçant constitué de substances salifères.

CONT

[...] les protubérances salines ou diapirs qui déterminent souvent des pièges à pétrole sont formées de roches bonnes conductrices, à flux thermique élevé.

CONT

Le soufre d'origine sédimentaire est exploité dans le Texas et la Louisiane, dans une série de plis diapirs, souvent riches en hydrocarbures.

OBS

Certains diapirs percent [...] la couverture et s'écoulent à la surface comme des glaciers de sel.

OBS

diapir; pli diapir; pli à noyau de percement : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Tectónica
DEF

Núcleo de roca profunda, en forma de columna, cúpula u hongo, que se forma en el subsuelo, sobre una capa de roca densa tras haberla atravesado de abajo arriba por extrusión.

CONT

Los diapiros más comunes constan de sal gema, de yeso o de anhidrita; también los hay de carnalita, silvita, cainita y otros minerales.

CONT

[...] sometida a presiones elevadas, la materia sedimentaria más ligera penetra en las fracturas de la capa superior, más densa, la atraviesa y, al salir de la misma por extrusión, se expande hacia arriba y lateralmente, formando un diapiro.

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