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mountainous topography
Mid-ocean ridges and seafloor spreading are characteristics of oceanic diverging plates, plates that are moving away from each other.
Faults, graben and mid oceanic ridges.
earths crust causes it
sea floor spreading
Sea-Floor Spreading is associated with Mid-Ocean Ridges.
Igneous rocks are usually associated with ocean ridges
Definition: Fine ridges on a fracture surface, parallel to the direction of propagation of the fracture. source: About.com
divergent
The main boundary associated with mid-ocean ridges are divergent boundaries, because the plates move away from eachother, or "diverge".
fracture zones
Oceanic Plate.
Mid Ocean ridges separate the plates and create new seafloor. Places where plates converge and disappear into the abyss are called trenches. The Marianas Trench is the deepest trench in the world.
mountainous topography
Mid-ocean ridges and seafloor spreading are characteristics of oceanic diverging plates, plates that are moving away from each other.
"as the plates pull apart, magma moves to the surface, building ridges"
Made ocean ridges & mountains