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Showing 1–9 of 9 results
Advanced filters: Author: Andrew Nyblade Clear advanced filters

  • Earthquake activity in East Antarctica is similar to that of other stable cratons, according to analyses of seismic data. Thus, the weight of the overlying Antarctic polar ice sheet does not suppress seismicity, as was previously thought.

    • Amanda C. Lough
    • Douglas A. Wiens
    • Andrew Nyblade
    Research
    Nature Geoscience
    Volume: 11, P: 515-519

  • The mantle upwelling beneath the Afar rift may be influenced by tectonic processes in the overriding lithospheric plates that shape the distribution of both the compositional heterogeneities and abundance of melt, according to a geochemical and statistical study of volcanic samples.

    • Emma J. Watts
    • Rhiannon Rees
    • Thomas M. Gernon
    ResearchOpen Access
    Nature Geoscience
    Volume: 18, P: 661-669

  • Large earthquakes can trigger seismicity in remote regions. Analysis of seismic data from Antarctica reveals ice quakes coincident with passing seismic waves from the 2010 Chile earthquake, suggesting that the ice sheet is sensitive to such triggers.

    • Zhigang Peng
    • Jacob I. Walter
    • Sridhar Anandakrishnan
    Research
    Nature Geoscience
    Volume: 7, P: 677-681

  • Several volcanoes exist in Marie Byrd Land, a highland range in West Antarctica, but none were thought to be currently active. Analysis of seismic data from the region shows that magma could be moving beneath the West Antarctic Ice Sheet, with potential implications for ice flow.

    • Amanda C. Lough
    • Douglas A. Wiens
    • Terry J. Wilson
    Research
    Nature Geoscience
    Volume: 6, P: 1031-1035

  • Subglacial seismicity reveals information about glacier behaviour. Analysis of repeated seismic events beneath an Antarctic outlet glacier is consistent with sliding of debris-laden ice over a bedrock asperity with an event frequency that is modulated by the ocean tides.

    • Lucas K. Zoet
    • Sridhar Anandakrishnan
    • Douglas A. Wiens
    Research
    Nature Geoscience
    Volume: 5, P: 623-626

  • Each continent contains pockets of ancient crust that appear to have been unaffected by tectonic forces since they formed billions of years ago. Why? There's now a fresh twist on the usual explanation.

    • Andrew A. Nyblade
    News & Views
    Nature
    Volume: 411, P: 38-39