Monitoring the Magmas Fuelling Volcanic Eruptions in Near-real-time Using X-ray Micro-computed Tomography

Kate Dobson, Matthew Pankhurst (Collaborator), Dan Morgan (Collaborator), Sue Loughlin (Collaborator), Thor Thordarson (Collaborator)

    Research output: Contribution to journalArticlepeer-review

    Abstract

    X-ray micro-computed tomography is here used for the first time to rapidly characterize chemical populations of natural olivine crystals. This technique can be deployed during volcanic crises, to directly track changes in magma contribution to an erupting system in near-real-time. These changes are fundamental to controlling the eruption style, duration and intensity. We demonstrate a method that can generate data from hundreds of crystals within hours, which allows time-series petrologic data to be recorded and interpreted alongside various complimentary monitoring techniques (i.e. geophysical approaches). Our direct-detection method broadens our view of the dynamic sub-volcanic plumbing system, and provides important insights to how an individual eruption may evolve. The same technique can be used to generate rich baseline datasets from individual eruption sequences in the rock record in a more efficient manner than conventional methods allow.
    Original languageEnglish
    JournalJournal of Petrology
    Publication statusPublished - 2014

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