under water volcanoes move the oceanic plates and spread them
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
seafloor spreading
Henry H. hess
They proved that the seafloor was spreading.
When seafloor spreading happens, a rift forms at the bottom of a ocean and separates to form new rock. This is an example of a divergent plate boundary
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.
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
its not happy
The typical rates of seafloor spreading is 5 centimeters per year. Seafloor spreading is a process that occurs at mid ocean ridges.