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Tephriphonolite or tephri-phonolite is a mafic to intermediate extrusive igneous rock in composition between phonotephrite and phonolite. It contains 9 to 14% alkali content and 48 to 57% silica content (see TAS diagram). Tephriphonolite is roughly equivalent to tephritic phonolite of the QAPF classification. Tephriphonolite has been found, for example, at Colli Albani volcano in Italy and in the Asunción Rift of Paraguay.

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  • La tefrifonolita és un màfic per a la roca ígnia extrusiva que té una composició entre la fonotefrita i la fonolita. Conté entre el 9% i el 14% de minerals alcalins (Na₂O i K₂O) i entre el 48% i el 57% de sílice (SiO₂) (vegeu Classificació TAS). L'erupció del Vesuvi del 79 que va destruir Pompeia i Herculà va emetre tefrifonolites. (ca)
  • Les téphri-phonolites sont des roches volcaniques intermédiaires entre les phonolites et les téphrites. Elles sont proches des phonolites mais la composition chimique présente des taux moins élevés de silice (SiO2) et de minéraux alcalins (Na2O et K2O). (fr)
  • Tephriphonolite or tephri-phonolite is a mafic to intermediate extrusive igneous rock in composition between phonotephrite and phonolite. It contains 9 to 14% alkali content and 48 to 57% silica content (see TAS diagram). Tephriphonolite is roughly equivalent to tephritic phonolite of the QAPF classification. Tephriphonolite has been found, for example, at Colli Albani volcano in Italy and in the Asunción Rift of Paraguay. (en)
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  • La tefrifonolita és un màfic per a la roca ígnia extrusiva que té una composició entre la fonotefrita i la fonolita. Conté entre el 9% i el 14% de minerals alcalins (Na₂O i K₂O) i entre el 48% i el 57% de sílice (SiO₂) (vegeu Classificació TAS). L'erupció del Vesuvi del 79 que va destruir Pompeia i Herculà va emetre tefrifonolites. (ca)
  • Les téphri-phonolites sont des roches volcaniques intermédiaires entre les phonolites et les téphrites. Elles sont proches des phonolites mais la composition chimique présente des taux moins élevés de silice (SiO2) et de minéraux alcalins (Na2O et K2O). (fr)
  • Tephriphonolite or tephri-phonolite is a mafic to intermediate extrusive igneous rock in composition between phonotephrite and phonolite. It contains 9 to 14% alkali content and 48 to 57% silica content (see TAS diagram). Tephriphonolite is roughly equivalent to tephritic phonolite of the QAPF classification. Tephriphonolite has been found, for example, at Colli Albani volcano in Italy and in the Asunción Rift of Paraguay. (en)
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  • Tefrifonolita (ca)
  • Téphri-phonolite (fr)
  • Tephriphonolite (en)
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