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Oceans and Seas
Plate Tectonics

How does the new ocean floor form?


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November 23, 2010 5:41PM

Extrusive igneous rock-

Sometimes lava erupts and flows from long cracks in the earths crust called fissures. Lava flows from fissures on the ocean floor at places where tension is causing the ocean to be pulled apart. This lava cools to form new ocean floor.

Hope it helps.