Nonlinear dynamics of lava dome extrusion

  title={Nonlinear dynamics of lava dome extrusion},
  author={O. Melnik and R. Sparks},
  • O. Melnik, R. Sparks
  • Published 1999
  • Geology
  • Nature
  • During the eruption of the Soufrière Hills volcano, Montserrat (1995–99), and several other dome eruptions, shallow seismicity, short-lived explosive eruptions and ground deformation patterns indicating large overpressures (of several megapascals) in the uppermost few hundred metres of the volcanic conduit have been observed. These phenomena can be explained by the nonlinear effects of crystallization and gas loss by permeable flow, which are here incorporated into a numerical model of conduit… CONTINUE READING
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