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Created page with "== Introduction == An oceanic spreading ridge, also known as a mid-ocean ridge, is an underwater mountain range formed by plate tectonics. This geological feature is characterized by the upwelling of magma from the mantle, which creates new oceanic crust as tectonic plates diverge. Oceanic spreading ridges are fundamental to the process of seafloor spreading and play a crucial role in the dynamics of Earth's lithosphere. == Geological Setting == Oceanic spreading ridges..."