What causes form at a divergent plate boundary?

At a divergent plate boundary, tectonic plates move away from each other, creating space for magma from the mantle to rise and solidify, forming new crust. This process typically occurs along mid-ocean ridges, where the upwelling of magma generates new oceanic crust. As the plates separate, volcanic activity and earthquakes can occur, contributing to the formation of features like rift valleys and underwater mountains. The continual movement and creation of new material at these boundaries are key to the dynamic nature of Earth’s lithosphere.