Definitions for "Spreading center"
Keywords:  ridge, mid, crust, ocean, plates
a region of divergence on the Earth's surface (e.g. the mid-ocean ridge).
Lithospheric plate boundary along which two plates of oceanic lithosphere are undergoing separation.
two or more plates move away from each other, exposing hot magma to the surface. The magma hardens and becomes basaltic crust.
Keywords:  seafloor, crustal, newly, region, moves
region of the seafloor where newly formed crustal material moves in opposite directions