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Seismological evidence for differential rotation of the Earth's inner core

Nature volume 382, pages 221–224 (1996)Cite this article

Abstract

The travel times of seismic waves that traverse the Earth's inner core show a small but systematic variation over the past three decades. This variation is best explained by a rotation of the inner core that moves the symmetry axis of its known seismic anisotropy. The inferred rotation rate is on the order of 1° per year faster than the daily rotation of the mantle and crust.

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Authors and Affiliations

  1. Lamont-Doherty Earth Observatory, Palisades, New York, 10964, USA

    Xiaodong Song & Paul G. Richards

  2. Department of Earth and Environmental Sciences, Columbia University, New York, New York, 10027, USA

    Xiaodong Song & Paul G. Richards

Authors
  1. Xiaodong Song
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  2. Paul G. Richards
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Song, X., Richards, P. Seismological evidence for differential rotation of the Earth's inner core. Nature 382, 221–224 (1996). https://doi.org/10.1038/382221a0

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  • DOI: https://doi.org/10.1038/382221a0

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