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SUMMARY:Explosive volcanism: a materials catastrophe - Donald Dingwell (Un
 iversity of Munich)
DTSTART:20090217T163000Z
DTEND:20090217T173000Z
UID:TALK15562@talks.cam.ac.uk
CONTACT:Ian Farnan
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. \nExperi
 ments provide a unique opportunity to define the mechanistic possibilities
  for magma response. Experimental volcanology is now a rich field of inves
 tigation. Its extrapolation to nature is far less problematic that most tr
 aditional experimental areas of the solid earth sciences. Highlights of so
 me recent research into the mechanisms involved in explosive eruptions wil
 l be reviewed.\n\n
LOCATION:Harker 2 lecture room\, Department of Earth Sciences\, Downing Si
 te
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