mantle plume

French translation: panache mantellique

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English term or phrase:mantle plume
French translation:panache mantellique

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17:54 May 24, 2010
English to French translations [PRO]
Science - Geology
Additional field(s): Environment & Ecology, Geography
English term or phrase: mantle plume
Definition from Digital Atlas of Idaho:
A buoyant mass of hot mantle material that rises to the base of the lithosphere. Mantle plumes commonly produce volcanic activity and structural deformation in the central part of lithospheric plates.

Example sentence(s):
  • Scientists believe mantle plumes can last hundreds of millions of years, and that their heat can create phenomena such as Yellowstone National Park or the string of Hawaiian Islands. Science Centric
  • Above a certain depth, the head of the plume begins to melt and spread out under the crust, until it finds a crack and pours through. The theory of mantle plumes predicts an initial flood of lava lasting tens of millions of years, which means that each hot spot should have an associated flood basalt. University of California
  • The first few million years of a newly arrived mantle plume seem to be the most fertile in terms of magma production and flood basalts are therefore formed in a very short period of geological time. The Geological Society
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panache mantellique
Definition:
Un panache mantellique est une colonne de magma remontant du manteau inférieur à travers la lithosphère.
Selected response from:

Hélène ALEXIS
France
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Summary of translations provided
4 +2panache mantellique
Hélène ALEXIS
4Panaches mantelliques
lmelandal


  

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24 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
panache mantellique


Definition from CIRS:
Un panache mantellique est une colonne de magma remontant du manteau inférieur à travers la lithosphère.

Example sentence(s):
  • Cette zone de dorsales interagit avec un panache mantellique, c'est-à-dire un point chaud qui remonte dans le manteau et qui s'expriment à proximité de la zone d'accrétion - cirs  
  • La notion de panache mantellique est associée à celle de point chaud. - pLANET TERRE  
  • Lorsque le panache mantellique atteint la base de la lithosphère, il se déploie latéralement. L'extension latérale du manteau chaud aide à déplacer les plaques Terrestres rigides externes. - membres Multimania  
Hélène ALEXIS
France
Local time: 14:32
Native speaker of: French
PRO pts in category: 4

Votes in favor of/against selecting this as the best translation of the term asked
Yes  stengel1: Définition CIRS pas très heureuse, mais oui quand même
3 days 48 mins
  -> merci!

Yes  Eric Le Carre
3 days 12 hrs
  -> merci !
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2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
Panaches mantelliques


Definition from glossaire CNRS:
Flux de matière chaude montant très lentement à travers le manteau. Proche de la surface, les panaches mantelliques fondent et apportent de grandes quantités de lave à la surface de la Terre.

Example sentence(s):
  • La théorie des panaches mantelliques et des points chauds offre une explication à plusieurs phénomènes : le volcanisme de points chauds, l'âge croissant des chaînes volcaniques à mesure qu'on s'éloigne du point chaud, mais aussi la dislocation de l'ancien supercontinent de la Pangée et certaines extinctions massives d'espèces qui ont eu lieu dans un lointain passé. - Pour la science.fr  
  • Les vastes épanchements volcaniques tabulaires nommés "trapps" seraient la conséquence de l'impact initial d'un panache mantellique puissant sous une lithosphère fragilisée et déchirée. - Notre-planete.info  
  • Chaud et corrélativement plus léger, le matériel des panaches mantelliques remonterait vers la surface, sous l'effet de la poussée d'Archimède, pour être piégé dans la partie supérieure du manteau. - La recherche  
lmelandal
France
Local time: 14:32
Native speaker of: French
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