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Stories about: dynamic upwelling

How Oceanic Crusts Replenishes Itself The molten core of our planet is entirely engulfed in the mantle, the second, thickest layer of magma that supports the crust. The latter is simply the skin of our planet, a layer just a few kilometers thick at its largest point, on which everything we know, continents and oceans included, lie. But there are also sig... 28 November 2009 07:11 GMT