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SUMMARY:Explosive volcanism: a materials catastrophe - Don Dingwell\, Univ
 ersity of Munich
DTSTART:20090217T163000Z
DTEND:20090217T173000Z
UID:TALK15297@talks.cam.ac.uk
CONTACT:John Maclennan
DESCRIPTION:Volcanism reflects the fundamental mechanism of earth differen
 tiation via the generation and transportation of mass in the form of magma
  in the terrestrial planets. Volcanism has been a constant companion of li
 fe on Earth since its origins. Mankind\, in particular\, is increasingly e
 xposed to the consequences of eruptions\, intensifying a relationship that
  has existed since the dawn of the species.\nExplosive volcanism is a trul
 y extraordinary feature of the Earth. Enormous masses of the lithosphere c
 an be transported into the stratosphere within hours to weeks\, with subst
 antial global consequences. Monitoring and modelling of such processes are
  major sectors of modern volcanology. Both rely indisputably on a proper a
 nd sufficient mechanistic understanding of subvolcanic processes.\nExperim
 ents provide a unique opportunity to define the mechanistic possibilities 
 for magma response. Experimental volcanology is now a rich field of invest
 igation. Its extrapolation to nature is far less problematic that most tra
 ditional experimental areas of the solid earth sciences. Highlights of som
 e recent research into the mechanisms involved in explosive eruptions will
  be reviewed.
LOCATION:Harker 1 seminar room\, Department of Earth Sciences
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