Tridymite is associated with silicic volcanism

Q.  Tridymite is associated with
- Published on 27 Jun 16

a. Felsic Volcanism
b. Ultramafic Volcanism
c. Mafic Volcanism
d. Silicic Volcanism

ANSWER: Silicic Volcanism
 
  • On Earth, tridymite is formed at high temperatures in an explosive process called silicic volcanism.
  • Mount St Helens, the active volcano in Washington State, and the Satsuma-Iwojima volcano in Japan are examples of such volcanoes.
  • Silicic Volcanism is characterized by the eruption of magma that is rich in lighter elements such as silicon, oxygen, aluminum, sodium, and potassium.
  • Silicic volcanoes are associated with the melting of continental crust and often have explosive eruptions.

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