Why is the oceanic crust youngest near the Mid-Atlantic Ridge?

The oceanic crust is youngest near the Mid-Atlantic Ridge because the ridge serves as a seafloor spreading center where new crust is continuously created.12

At this divergent plate boundary, molten magma from Earth’s mantle wells up along the crest of the ridge. As this magma cools, it solidifies to form fresh oceanic crust. Through the process of seafloor spreading, this newly formed material is progressively pushed laterally away from the ridge’s flanks as more magma rises to take its place.132

Because this process is ongoing, the crustal material found at the ridge axis is the most recently formed, while the crust becomes progressively older with increasing distance from the spreading centre. This age gradient provides critical evidence for the theory of plate tectonics, confirming that the Atlantic Ocean basin is widening over time.4513