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Showing 1–5 of 5 results
Advanced filters: Author: Hugh Tuffen Clear advanced filters
  • Obsidian lava flows accompanied some of Earth’s most powerful eruptions, yet an active advancing flow field has never been observed. Tuffen et al.present four-dimensional models of the lava flow following the 2011 eruption of Cordón Caulle, Chile, and provide new insights into silicic lava flow dynamics.

    • Hugh Tuffen
    • Mike R. James
    • C. Ian Schipper
    Research
    Nature Communications
    Volume: 4, P: 1-7
  • Textures and dissolved water contents reveal that lavas may be formed from volcanic ash particles that stick back together while hot, and not by the eruption of magma that rose through the Earth’s crust in a coherent viscous state.

    • Annabelle Foster
    • Fabian B. Wadsworth
    • Madeleine C. S. Humphreys
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-10
  • Tuffen and colleagues present experiments in which high-temperature silica-rich magmas are deformed under simulated volcanic conditions. Acoustic emissions recorded during the experiments indicate that seismogenic rupture may occur in both crystal-rich and crystal-free silicic magmas at eruptive temperatures, extending the range of known conditions for seismogenic faulting.

    • Hugh Tuffen
    • Rosanna Smith
    • Peter R. Sammonds
    Research
    Nature
    Volume: 453, P: 511-514
  • Magmatic intrusions are thought to precede volcanic eruptions. However, Castro et al. present evidence that a laccolith was emplaced during the 2011 rhyolitic eruption of Cordón Caulle showing that eruptions may force the intrusion of magma into the shallow crust posing an unrecognized volcanic hazard.

    • Jonathan M. Castro
    • Benoit Cordonnier
    • Yves Feisel
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7
  • Here the authors document evidence of ultrafine ash captured within ash-venting nozzles at Cordón Caulle volcano (Chile). This decouples eruptive processes from the emitted products, as explained by a new model of in-vent ash migration and sticking.

    • Jamie I. Farquharson
    • Hugh Tuffen
    • C. Ian Schipper
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11