The degassing of silicate melts plays an important role in both the Earth and glass sciences. Volcanic eruptions are driven by the expansion of exsolved volatiles. These volatiles are initially dissolved in magmas at high pressures and later released as one or more fluid phases during ascent of the magma to the Earth’s surface due to decompression (Webster and Botcharnikov 2011, this volume; Oppenheimer et al. 2011, this volume). During fining of glass melts the oversaturation of the silicate liquid with respect to dissolved volatiles is induced by heating. Although the process of volatile oversaturation occurring in...
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