Two geologists have provide different, though not necessarily incompatible, explanations for a boundary in Earth’s mantle at a depth of one megameter (1,000 kilometers). One study suggests that the mantle …read more
Source:: Science
Two geologists have provide different, though not necessarily incompatible, explanations for a boundary in Earth’s mantle at a depth of one megameter (1,000 kilometers). One study suggests that the mantle …read more
Source:: Science