A note on gas segregation in dykes and sills at high volumetric gas fractions

Authors :: Jeremy C. Phillips
Thierry Menand
School of Earth Sciences [Bristol]
University of Bristol [Bristol]
Source :: Journal of Volcanology and Geothermal Research, Journal of Volcanology and Geothermal Research, Elsevier, 2007, 162 (3-4), pp.185-188. ⟨10.1016/j.jvolgeores.2007.03.002⟩
Publication Year :: 2007
Publisher :: Elsevier BV, 2007.
Abstract: The model of gas segregation in volcanic systems developed by Menand and Phillips [Menand, T., Phillips, J.C., 2007. Gas segregation in dykes and sills. J. Volcanol. Geotherm. Res. 159, 393–408] show that non-vertical elements of the plumbing systems, such as dykes and sills, act as strong gas segregators and can explain the persistent degassing displayed by many basaltic volcanoes as well as their associated eruptive characteristics. However, this model is based on laboratory experiments carried out at low volumetric gas fractions