* The Mid-Atlantic Ridge is a divergent plate boundary: This means tectonic plates are moving apart.

* New crust is formed at the spreading axis: As the plates pull away from each other, magma rises from the mantle and solidifies to create new oceanic crust.

* The further away from the axis, the older the rocks: The newly formed rock is constantly pushed away from the spreading axis by the continuous process of seafloor spreading, resulting in older rocks found further away from the axis.

Therefore, to find the youngest rocks on the Mid-Atlantic Ridge, you would need to collect samples from the central region where the plates are actively separating and new oceanic crust is being formed.