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What is the ocean floor made of?

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Another name for the ocean floor is oceanic crust. Oceanic crust is the result of erupted mantle material originating from below the plate, cooled and in most instances, modified chemically by seawater. This occurs mostly at mid-ocean ridges, but ... read more

Other articles where Ocean floor is discussed: undersea exploration: Exploration of the seafloor and the Earth’s crust: The ocean floor has the same general character as the land areas of the world: mountains, plains, channels, canyons, exposed rocks, and sediment-covered areas. read more

Another name for the ocean floor is oceanic crust. Oceanic crust is the result of erupted mantle material originating from below the plate, cooled and in most instances, modified chemically by seawater. This occurs mostly at mid-ocean ridges, but also at scattered hotspots, and also in rare but powerful occurrences known as flood basalt eruptions. read more

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