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Earth's core

A new twist on inner-core spin

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An observed hemispheric structure in the Earth's inner core has been hard to reconcile with evidence that it rotates faster than the mantle. Detection of a shift of the hemisphere boundary that occurred over geological timescales removes the contradiction.

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Figure 1: The structure of Earth's core.

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Authors and Affiliations

  1. Mathieu Dumberry is in the Department of Physics, University of Alberta, Edmonton, Alberta, T6G 2G7, Canada.,

    Mathieu Dumberry

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  1. Mathieu Dumberry
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Correspondence to Mathieu Dumberry.

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Dumberry, M. A new twist on inner-core spin. Nature Geosci 4, 216–217 (2011). https://doi.org/10.1038/ngeo1091

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