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Showing 1–5 of 5 results
Advanced filters: Author: Arwen Deuss Clear advanced filters

  • Using whole-Earth oscillations to constrain a 3D global model of attenuation for the whole mantle, low attenuation correlates with low velocity in the lower mantle, suggesting long-lived deep-mantle provinces.

    • Sujania Talavera-Soza
    • Laura Cobden
    • Arwen Deuss
    Research
    Nature
    Volume: 637, P: 1131-1135

  • A seismic tomographic model shows that the directional dependence of the travel time of seismic waves through Earth’s inner core can be explained by a spatially varying orientation of the transverse isotropy symmetry axis, which is simpler than other proposed structures.

    • Hen Brett
    • Jeroen Tromp
    • Arwen Deuss
    Research
    Nature Geoscience
    Volume: 17, P: 1059-1064

  • Earth’s solid inner core is separated into two distinct hemispheres and is thought to rotate faster than the Earth. An analysis of seismic travel time data allows quantification of the displacement of the hemisphere boundary with time, and results in an estimated super-rotation several orders of magnitude smaller than previously reported.

    • Lauren Waszek
    • Jessica Irving
    • Arwen Deuss
    Research
    Nature Geoscience
    Volume: 4, P: 264-267

  • Large-low-shear-wave velocity provinces (LLSVPs) are present at the core–mantle boundary. Here, the authors show that splitting of Stoneley modes is probably due to a lower density of LLSVPs than the surrounding mantle because of the presence of post-perovskite, chemical heterogeneity or both.

    • Paula Koelemeijer
    • Arwen Deuss
    • Jeroen Ritsema
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-10

  • Nucleation and growth of Earth’s solid inner core has a crucial role powering the geomagnetic field. This Review explores the timing and mechanisms of inner core growth consistent with physical constraints and first-order observations of the thermal evolution of Earth.

    • Alfred J. Wilson
    • Christopher J. Davies
    • Arwen Deuss
    Reviews
    Nature Reviews Earth & Environment
    Volume: 6, P: 140-154