Sea Floor Is Created At Spreading Ridges And Destroyed

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 occurs along mid ocean ridges large mountain ranges rising from the ocean floor. Sea floor spreading occurs when the sea floor spreads apart along divergent boundaries and forms the mid ocean ridge.

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The andes mountains are a famous example of.

Sea floor is created at spreading ridges and destroyed.

Sea floor spreading has to do with the crust forming at ocean ridges and being destroyed at deep sea trenches. When the magma hardens it forms new oceanic crust that becomes welded to the original crust. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. Sea floor is created at spreading ridges and destroyed.

Learn vocabulary terms and more with flashcards games and other study tools. During the process of seafloor spreading. A mid ocean ridge mor is a seafloor mountain system formed by plate tectonics it typically has a depth of 2 600 meters 8 500 ft and rises about two kilometers above the deepest portion of an ocean basin this feature is where seafloor spreading takes place along a divergent plate boundary the rate of seafloor spreading determines the morphology of the crest of the mid ocean ridge and its. East africa and the basin and the range province of the united states are example of a.

Magma is pushed up through cracks in the crust along the mid ocean ridge. Flow of liquid iron alloy in earth s molten outer core. New seafloor is formed at ridges and destroyed at trenches. 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.

Spreading rates determine if the ridge is fast intermediate or slow. Rifting occurs at oceanic spreading ridges but not within continents because continents are so thick and strong. This boundary is connected with sea floor spreading. Earth s magnetic field is created primarily by the.

Start studying sea floor spreading. It was created on the sea floor. At the spreading center liquid rock called basaltic magma rises from the earth s mantle as it upwells beneath the spreading axis. As the magma is thrust up and hardens it forms new crust and the ocean floor on both sides of the mid ocean ridge move outward.

In 1962 hess proposed that the seafloor was created at mid ocean ridges spreading in both directions from the ridge system. A continental oceanic collision.

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