Here's why:
* Divergent: The word itself means "moving apart."
* Magma: Molten rock beneath the Earth's surface.
* Ocean Crust: The relatively thin, dense layer of rock that forms the ocean floor.
At divergent boundaries, the pulling apart of tectonic plates creates a gap. This gap allows magma from the Earth's mantle to rise to the surface, cool, and solidify, creating new ocean crust. This process is known as seafloor spreading.
Here are some key features of divergent boundaries:
* Mid-ocean ridges: These underwater mountain ranges are formed by the continuous upwelling of magma and creation of new crust.
* Rift valleys: On land, divergent boundaries can create rift valleys, where the Earth's crust is being pulled apart.
* Volcanic activity: As magma rises to the surface, it can erupt, forming volcanoes both on land and underwater.
Overall, divergent boundaries are responsible for the creation of new oceanic crust and the expansion of the ocean floor.
