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CALC-ALKALINE VOLCANISM [1 record]

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Record 1 2001-04-12

English

Subject field(s)
  • Geochemistry
  • Vulcanology and Seismology
CONT

In this [Andean] chain are developed belts of calc-alkaline volcanism and plutonism accompanied by tectonic deformation and crustal thickening.

CONT

... these two trends in island arcs take the form of pyritic copper deposits associated in time with both tholeiitic and ultrabasic rocks followed, with the change to calc-alkaline volcanism, by larger and more zinc-rich deposits ...

French

Domaine(s)
  • Géochimie
  • Volcanologie et sismologie
CONT

Les zones d'affrontement de plaques (zones de subduction) sont le siège d'un volcanisme de type calco-alcalin, andésitique, beaucoup plus brutal et associé à une forte séismicité. C'est, en particulier, le volcanisme de la «ceinture de feu» du Pacifique.

CONT

[...] le magma ainsi formé alimente un volcanisme essentiellement calco-alcalin (andésites, dacites) [...]

Key term(s)
  • volcanisme calcoalcalin

Spanish

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