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Twin studies provide first explanations for boundary within Earth's mantle


December 10, 2015

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Two new studies co-authored by University of Maryland geologists provide different, though not necessarily incompatible, explanations for a boundary in Earth's mantle at a depth of 1 megameter (1,000 kilometers). One study suggests that the mantle below this line is more viscous, while the other proposes that the lower section is denser due to a shift in rock composition. The papers appear this week in the journals Science and Science Advances, respectively.Full Story

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University of Maryland

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