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mantle plume

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17:56 May 24, 2010
English to Italian 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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This question was created by:
Alejandro Cavalitto
Alejandro Cavalitto
Argentina


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Summary of translations provided
5pennacchio (del mantello)
Paola Battagliarini
5Pennacchi caldi
qua


  

Translations offered


1 hr   confidence: Answerer confidence 5/5
pennacchio (del mantello)


Definition from sapere.it:
colonna verticale di materiale magmatico in risalita direttamente dal mantello sublitosferico

Example sentence(s):
  • A causa di una risalita di magma dalle zone profonde (pennacchio caldo), si forma un'area più calda del normale nel mantello e quindi una diminuzione di densità. Per il principio dell'isostasia si ha un inarcamento della crosta continentale sovrastante, che provoca numerose fratture. La cella convettiva di risalita, generata sotto il continente, è il centro di espansione. - Gruppo mineral. paleontologico euganeo  
  • Rocce affioranti sui fianchi del rift suggeriscono che il processo di rifting nell’area dello Jutulstraumen sia iniziato circa 180 milioni di anni fa e che costituisca quindi l’inizio del break-up del Gondwana, forse legato alla presenza di una plume (pennacchio) nel mantello. - Galileonet  
  • Gli scienziati ritengono che i pennacchi siano responsabili di alcuni spettacolari formazioni geologiche come le isole Hawaii o il parco nazionale di Yellowstone. Alcuni di questi pennacchi possono avere sorgenti poco profonde, alcuni altri, come nel caso delle Hawaii, sembrano "pescare" direttamente dalle radici profonde del mantello. - Le Scienze  
Paola Battagliarini
Italy
Local time: 16:21
Native speaker of: Italian
PRO pts in category: 16
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17 hrs   confidence: Answerer confidence 5/5
Pennacchi caldi


Definition from Wikipedia:
Si tratta di zampilli o pennacchi caldi, di materia relativamente primordiale.

Example sentence(s):
  • Vengono descritti come degli zampilli o pennacchi caldi, di materia relativamente primordiale, che risalgono dal profondo del mantello confinante con il nucleo esterno, grazie alla spinta idrostatica dovuta alla loro minore densità e che alimentano degli hotspot (sacche di magma), posti vicino alla superficie, come in Islanda o alle isole Hawaii. - Wikipedia  
qua
Italy
Local time: 16:21
Native speaker of: Native in ItalianItalian
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