The causes of spatiotemporal variations in erupted fluxes and compositions along a volcanic arc

Christy Till, A. J.R. Kent, G. A. Abers, H. A. Janiszewski, J. B. Gaherty, B. W. Pitcher

    Research output: Contribution to journalReview article

    Abstract

    Decades of study on volcanic arcs have provided insight into the overarching processes that control magmatism, and how these processes manifest at individual volcanoes. However, the causes of ubiquitous and dramatic intra-arc variations in volcanic flux and composition remain largely unresolved. Investigating such arc-scale issues requires greater quantitative comparison of geophysical and geochemical data, linked through sets of common intensive variables. To work towards these goals, we use observed lava compositions to estimate the heat budget associated with Quaternary volcanism in the Cascades Arc and compare this to the heat required to produce the observed geophysical properties of the crust. Here we show that along-strike volcanic variability in the Quaternary Cascades Arc is primarily related to variations in the flux of basalt into the crust, rather than variations in their crustal storage history. This approach shows promise for studying other large-scale frontier geologic problems in volcanic arcs.

    Original languageEnglish (US)
    Article number1350
    JournalNature communications
    Volume10
    Issue number1
    DOIs
    StatePublished - Dec 1 2019

    Fingerprint

    volcanology
    arcs
    Hot Temperature
    Fluxes
    Volcanoes
    causes
    Budgets
    Chemical analysis
    Process control
    History
    crusts
    cascades
    heat budget
    lava
    basalt
    volcanoes
    histories
    heat
    estimates

    ASJC Scopus subject areas

    • Chemistry(all)
    • Biochemistry, Genetics and Molecular Biology(all)
    • Physics and Astronomy(all)

    Cite this

    Till, C., Kent, A. J. R., Abers, G. A., Janiszewski, H. A., Gaherty, J. B., & Pitcher, B. W. (2019). The causes of spatiotemporal variations in erupted fluxes and compositions along a volcanic arc. Nature communications, 10(1), [1350]. https://doi.org/10.1038/s41467-019-09113-0

    The causes of spatiotemporal variations in erupted fluxes and compositions along a volcanic arc. / Till, Christy; Kent, A. J.R.; Abers, G. A.; Janiszewski, H. A.; Gaherty, J. B.; Pitcher, B. W.

    In: Nature communications, Vol. 10, No. 1, 1350, 01.12.2019.

    Research output: Contribution to journalReview article

    Till, Christy ; Kent, A. J.R. ; Abers, G. A. ; Janiszewski, H. A. ; Gaherty, J. B. ; Pitcher, B. W. / The causes of spatiotemporal variations in erupted fluxes and compositions along a volcanic arc. In: Nature communications. 2019 ; Vol. 10, No. 1.
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    AU - Gaherty, J. B.

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