Why are divergent plate boundaries in the ocean basin marked by a broad rise?
1 answer
Divergent plate boundaries in the ocean basin are marked by a broad rise because this is where two tectonic plates are moving away from each other, causing magma to rise up from the mantle and creating new seafloor. This process, known as seafloor spreading, results in the formation of mid-ocean ridges or broad rises where the new crust is being created. The magma that rises to the surface solidifies and forms new oceanic crust, which is why these areas are marked by a broad rise.