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  • Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

    Creator:
    Streck, Martin J.
    Abstract:
    The Rattlesnake Ash-Flow Tuff erupted 7.05±0.01 Ma from the western Harney Basin, southeastern Oregon. The location of the vent area is inferred based on vent-ward increases in size of pumices, in degree of welding, and in degree of post-emplacement crystallization. Today's outcrops cover 9000 km2 and estimated original outcrop coverage...
    Resource Type:
    Dissertation
    Full Text:
    lot thinner! The time and efforts of my graduate committee, Gordon Goles, Ed Taylor, Bob Duncan