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Filtering by: Creator Hooper, Rick Remove constraint Creator: Hooper, Rick Committee Member Duncan, Robert A. Remove constraint Committee Member: Duncan, Robert A.

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  • Evolution and inheritance of Cascadia sub-arc mantle reservoirs

    Creator:
    Bromley, Sarah Ashley
    Abstract:
    Inheritance from pre-existing mantle domains and fluid and melt contributions from active subduction together produce the geochemical signatures of mantle-derived arc basalts. In this context, this work evaluates the evolution of Cascadia mantle sources by documenting the isotopic and compositional characteristics of primitive basalts along a transect across the Eocene-Oligocene...
    Resource Type:
    Masters Thesis
    Full Text:
    Justin Millard both prepped samples for me, a favor I hope to repay to both down the road. Rick

  • The Deschutes Formation: evidence of extension-enhanced explosivity in the early High Cascades

    Creator:
    Pitcher, Bradley W.
    Abstract:
    The eruptive history of the Quaternary Cascades arc has been relatively well characterized. However, much less is known about the frequency and sizes of explosive eruptions produced by earlier stages of the arc. The Late Neogene Deschutes Formation of Central Oregon preserves a remarkable record of heightened pyroclastic activity during...
    Resource Type:
    Dissertation
    Full Text:
    excellent oxygen isotope data at University of Oregon. I would also like to thank Rick Conrey and Dave