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ACID LAVA [1 record]

Record 1 2004-01-20

English

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

Andesites pass into basalts by increase in anorthite content of the plagioclase. With increase in quartz they pass into the acid lava's dacites ...

French

Domaine(s)
  • Géologie
  • Volcanologie et sismologie
CONT

Le terme lave acide désigne en principe les laves riches en silice : mais cela ne signifie pas que les roches correspondantes ne soient pas déficitaires en silice. C'est le cas des phonolites, riches en soude, à feldspathoïdes. [...] les laves acides étant généralement visqueuses.

Spanish

Campo(s) temático(s)
  • Geología
  • Vulcanología y sismología
DEF

Lava que contiene sílice en proporción superior al 60%.

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