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Nature 415, 745-748 (14 February 2002) | doi:10.1038/415745a
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Molecular Biologists and Biochemists
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Earth science: Flow and fabric deep down
Karen M. Fischer
Abstract
Conditions in Earth's mantle can be inferred from seismic-wave velocities which reveal areas of anisotropy. Evidence emerges of such an area at mid-mantle level, associated with a subducting tectonic plate.
Imaging the Earth's interior is a challenging business. Drilling can only scratch the surface, so much of our information has to be inferred from the behaviour of seismic waves.
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