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CALC-ALKALINE MAGMA [1 record]

Record 1 2004-05-19

English

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

Sillitoe explains this pattern of zonation as resulting from "the release of metals from basaltic oceanic crust and pelagic sediments during partial melting at progressively deeper levels on subduction zones which dipped eastward beneath the continent; the metals subsequently ascended as components of calc-alkaline magma."

CONT

Ascending calc-alkaline magma.

CONT

Toleiitic and calc-alkaline magma series at Adatara Volcano, Northeast Japan ...

CONT

The [iron] sources that have been invoked are calc-alcaline ... magmas ..., alkaline and peralkaline magmas ...

French

Domaine(s)
  • Géochimie
  • Volcanologie et sismologie
DEF

Magma générateur de roches calcoalcalines.

CONT

En profondeur vers 50 km, le faciès métamorphique est de type amphibolite et de faciès éclogite. Au-delà de 150 km de profondeur la fusion partielle se réaliserait donnant naissance aux magmas calco-alcalins (andésitiques), permettant ainsi de déterminer un front de volcanisme.

CONT

Parmi les sources de fer invoquées figurent les magmas calco-alcalins [...], les magmas alcalins et hyperalcalins.

Spanish

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