It is part of continental drift and plate tectonics.
Henry H. hess
Seafloor Spreading
its not happy
The ages of the rocks become older the farther the way they are from the ridges. The closer they are the younger it is. This leaves evidence to the seafloor spreading theory.
Rocks in the seafloor are moving one place to another
Henry H. hess
They proved that the seafloor was spreading.
A diagram that shows how seafloor spreading works.
Seafloor spreading is triggered by a rift in a continental land mass.
Gravity in the oceanic crust is responsible for seafloor spreading.
It is called Seafloor Spreading, which comes under the Divergent Plate Movement.
Seafloor Spreading
Seafloor Spreading helped move the Continents to their current location.
When seafloor spreading occurs, it pushes the underground magma up though the new crust, creating a sort of volcano out of the new crust. Magma is a very important part in seafloor spreading. :]
Seafloor spreading at midoceanic ridges.
Seafloor Spreading
Seafloor spreading