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Showing 1–3 of 3 results
Advanced filters: Author: Felix W. von Aulock Clear advanced filters

  • Columnar joints in lavas form during cooling, but the temperature this occurs at is unclear. Here, the authors perform thermo-mechanical experiments on basaltic rocks to examine the temperature of columnar joints in lavas and find that failure occurs at 890–840 °C, which is below the solidus temperature of 980 °C.

    • Anthony Lamur
    • Yan Lavallée
    • Fabian B. Wadsworth
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • A textural examination of volcanic ash erupted from Santiaguito volcano in Guatemala coupled with an analysis of the geophysical signals indicates that rapid heating during fault friction can cause melting and vesiculation (development of bubbles) of hydrated silicic magma, thus strongly affecting magma strength and eruptive behaviour.

    • Yan Lavallée
    • Donald B. Dingwell
    • Gustavo Chigna
    Research
    Nature
    Volume: 528, P: 544-547