Question

When new oceanic lithosphere is generated at an oceanic ridge, what happens to the plate it's attached to?

Answer 1

When new oceanic lithosphere is generated at an oceanic ridge, the plate gets larger it's attached to.

A mid-ocean ridge or mid-oceanic ridge is an underwater formation, fashioned by tectonics. This rise of the ocean floor happens once convection currents rise within the mantle to a lower place the oceanic crust and make rock wherever 2 tectonic plates meet at a divergent boundary.

Answer 2

The plate gets larger.

The process of forming new oceanic lithosphere which happens in mid-oceanic ridges is called seafloor spreading. A new crust is created by means of volcanic activity which is the result of the dissolving of the oceanic lithosphere or descending plate.