Summary:

  • Plates move apart at a divergent plate boundary.
  • This happens in the oceans at mid-ocean ridges.
  • It happens on land in continental rift zones.
  • The island of Iceland sits right on the Mid-Atlantic ridge.
  • This is where new seafloor is created by upwelling magma.
  • Eventually, as the continental crust breaks apart, oceanic crust will form.
  • It is how the Atlantic Ocean formed when Pangaea broke up.
  • Use the resource below to answer the questions that follow.
Select from the frequently asked questions below