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rising molten magma
Geothermal Drift.
the primary force that causes the seaffloor to spread and contienents to drift
thermal convection
no magma riseing thur gaps in plate causes them to move called seafloor spread
Seafloor Spreading
Seafloor spreading
Seafloor spreading at midoceanic ridges.
Seafloor Spreading
seafloor spreading
In the middle of the ocean is a rift where the ocean floor squeezes out lava and pushes the ocean plates apart.
A diagram that shows how seafloor spreading works.