By Charles Allen PhilipsBy Charles Allen Philips

Sea-floor spreading Sea-floor spreading

The sea floor

• The sea-floor of earth is one of the most unique things in the whole world.

• Seafloor-spreading is one of the many things that happens in the seafloor

What is seafloor-spreading?

• Seafloor-spreading is the formation of new areas of oceanic crust, which occurs through the upwelling of magma at mid-ocean ridges and its subsequent outward movement on either side.

What does it do?

• Seafloor spreading helps explain continental drift in the theory of plate tectonics

How does it occur?

• Sea floor spreading starts with volcanic activity on the ocean floor. When the earth cracks apart at the plates, magma rises to the surface and pushes the plates farther apart.

That’s all

hope you learned a lotBecause its question

questions

• What is sea floor spreading?

• How does it occur?

• What does it do?