Prelims · 3 Physical & World Geography · 3.2 Interior of the Earth and plate tectonics

3.2.8 Volcanoes: types, volcanic landforms and the Pacific Ring of Fire

A volcano is a vent through which molten rock, gases and fragments reach the surface; the type of eruption and landform depends on how fluid the lava is, and most active volcanoes sit on plate boundaries, especially the Pacific Ring of Fire.

  • APPSC Group 2 · Prelims
  • Standard level
  • 8 min read
  • Full course

Key terms

  • volcano
  • magma
  • lava
  • pyroclastic
  • shield volcano
  • composite volcano
  • caldera
  • flood basalt
  • Deccan Traps
  • mid-ocean ridge volcano
  • batholith
  • laccolith
  • lopolith
  • phacolith
  • sill
  • dyke
  • hotspot
  • Ring of Fire
  • Barren Island
  • Narcondam

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

Read the full note in the app. It is part of the APPSC Group 2 full course in Medha AI. Free in the app: the first chapter of each topic.

Read the full note in the app Physical & World Geography questions with answers

All Interior of the Earth and plate tectonics notes · APPSC Group 2 syllabus · APPSC G2 Prelims Mock 1 with answers · Start free

Medha AI writes its own notes and checks them against the sources listed. Medha AI is an independent preparation service. It is not affiliated with, endorsed by or connected to APPSC, TSPSC, MPSC, UPSC or any other commission or government body.