<P> The Mid-Atlantic Ridge includes a deep rift valley that runs along the axis of the ridge along nearly its entire length . This rift marks the actual boundary between adjacent tectonic plates , where magma from the mantle reaches the seafloor , erupting as lava and producing new crustal material for the plates . </P>
<P> The Mid-Atlantic Ridge includes a deep rift valley that runs along the axis of the ridge along nearly its entire length . This rift marks the actual boundary between adjacent tectonic plates , where magma from the mantle reaches the seafloor , erupting as lava and producing new crustal material for the plates . </P>
where do some rift valleys form along the oceanic ridge system
where do some rift valleys form along the oceanic ridge system
The Mid-Atlantic Ridge
The Mid-Atlantic Ridge