Isotopic Insights Into the Degassing and Secondary Hydration Rates of Volcanic Glass From the 1980 Eruptions of Mount St. Helens

Angela N Seligman1, Ilya Bindeman2, Alexa R Van Eaton3 and Richard P Hoblitt3, (1)Environmental Protection Agency Ada, Ada, OK, United States, (2)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (3)USGS Cascades Volcano Observatory, Vancouver, WA, United States