In plate tectonics, a divergent boundary or divergent plate boundary as known a constructive boundary or an extensional boundary is a linear feature that exists between two tectonic plates that are moving away from each other.
At the divergent boundaries, two plates move away from each other and the space produced by this spacing is filled by a new magmatic crust material. Thus, the divergent limit is constructive, since it allows the expansion of the ocean floor and the consequent formation of a new lithosphere.
According to this concept, we can say that the geographical features that are associated with a divergent boundary are the tectonic plates.
