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Filtering by: Alternative title ssim Mount St. Helens volcano : recent and future behavior Remove constraint Alternative title ssim: Mount St. Helens volcano : recent and future behavior Advisor Brauner, David R. Remove constraint Advisor: Brauner, David R. Committee Member Brown, Perry Remove constraint Committee Member: Brown, Perry

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  • The effects of the Mazama tephra-falls : a geoarchaeological approach

    Creator:
    Matz, Stephan E.
    Abstract:
    About 7,000 years ago two major tephra-falls blanketed the Pacific Northwest in volcanic ash. These two tephra-falls, identified as the Llao and climatic tephra-falls, were a part of the eruptive events that led up to the collapse of Mount Mazama to form Crater Lake in the southern Oregon Cascades. The...
    Resource Type:
    Masters Thesis
    Full Text:
    (Newhall and Self 1982) of 6 (Simkin et al. 1981:86). For comparison, Mount St. Helens was rated at a