Types of Volcanoes

Sheild and Composite volcanoes

HideShow resource information
View mindmap
  • Volcanoes
    • Shield
      • Occur at CONSTRUCTIVE plate margins
      • Low with gentle sliding slopes
      • Formed by eruptions of thin runny, lava
      • Eruptions are frequent but gentle
    • Composite
      • Occur at DESTRUCTIVE plate margins
      • Made up of alternating layer of lava and ash
      • Eruptions have a pyroclastic flow rather than a lava flow
        • PYROCLASTIC: a mixture of hot steam, ash, rock and dust
        • A pyroclastic flow can roll down the sides of a volcano at very high speeds and at temperatures of 400 degrees


No comments have yet been made

Similar Geography resources:

See all Geography resources »See all The Restless Earth resources »