Earth science

Flow and fabric deep down

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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.

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Figure 1: Evidence for anisotropy at depths of around 660 km in the Earth, the boundary between the upper and lower mantle.

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Correspondence to Karen M. Fischer.

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Fischer, K. Flow and fabric deep down. Nature 415, 745–747 (2002) doi:10.1038/415745a

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