Sea Floor Spreading Geology Definition

In the theory of plate tectonics the process by which new oceanic crust is formed by the convective upwelling of magma at mid ocean ridges resulting in. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor.

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Sea floor spreading geology definition.

Spreading rates determine if the ridge is fast intermediate or slow. The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid ocean ridge is the spreading half rate and is equal to half of the spreading rate. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. Seafloor spreading definition a process in which new ocean floor is created as molten material from the earth s mantle rises in margins between plates or ridges and spreads out.

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