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Showing 1–3 of 3 results
Advanced filters: Author: Gauthier Hulot Clear advanced filters

  • Seismic waves sampling the top 100 km of the Earth's inner core have revealed that the eastern hemisphere is seismically faster, more isotropic and more attenuating than the western hemisphere. It is now shown that a single model of thermo-chemical convection and dynamo action can account for all these effects by producing a large-scale, long-term outer core flow that couples the heterogeneity of the inner core with that of the lower mantle.

    • Julien Aubert
    • Hagay Amit
    • Peter Olson
    Research
    Nature
    Volume: 454, P: 758-761

  • Archaean and early Proterozoic rocks reveal that the Earth's magnetic field two billion years ago behaved differently than over most of the past 200 million years. Do these changes relate to the growth of the inner core?

    • Gauthier Hulot
    News & Views
    Nature Geoscience
    Volume: 1, P: 345-346