Plate boundaries

• transform

  • plates slide past each other
  • causes earthquakes
• divergent

  • move away from each other
  • forms mid-ocean ridges
  • creates young crust on the ocean floor
• convergent

  • move towards each other
• types of convergent plate boundaries

  • oceanic-continental
  • oceanic-oceanic
  • continental-continental
• oceanic-continental

  • oceanic plate always goes beneath the continental plate
  • forms mountain ranges usually containing volcanoes
• oceanic-oceanic

  • older denser plate goes beneath
  • forms trenches and volcanoes
• continental-continental

  • neither goes beneath
  • forced to one another
  • forms tall mountains