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Earth's getting 'soft' in the middle
Since we can’t sample the deepest regions of the Earth, scientists watch the velocity of seismic waves as they travel through the planet to determine the composition and density of that material. Now a new study suggests that material in part of the lower mantle has unusual electronic characteristics that make sound propagate more slowly
Since we can’t sample the deepest regions of the Earth, scientists watch the velocity of seismic waves as they travel through the planet to determine the composition and density of that material. Now a new study suggests that material in part of the lower mantle has unusual electronic characteristics that make sound propagate more slowly
Source: EurekAlert
Posted on: Friday, Jan 25, 2008, 10:14am
Views: 1177
Posted on: Friday, Jan 25, 2008, 10:14am
Views: 1177
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