IE 3.1 part 2

• Hot spot


  A place in the upper mantle where hot magma from the lower mantle rises up to melt through the crust usually in the interior of a tectonic plate where it can form a hot spot volcano
• Hot spot volcanoes


  • The Hawaiian Islands
  • Yellowstone National Park, Wyoming
  • Cascade Volcanoes
  • Columbia River Basalts
• Formation of hot spot volcanoes


  1. Hot magma from lower mantle rises up

  2. Melts through crust in interior of tectonic plate

  3. Forms hot spot volcano
• The Hawaiian Islands result from the slow movement of a tectonic plate across a hot spot beneath the surface
• Volcanism in the American Northwest includes the Cascade Volcanoes, Columbia River Basalts, and Yellowstone Caldera Chain
• The ages shown for the volcanic features are in millions of years