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The Secrets of Supervolcanoes: Overview/Mighty Eruptions

  • Recent analysis of the composition of tiny crystals inside ash deposits from prehistoric eruptions is overturning old beliefs about supervolcano behavior--and revealing new surprises about the aftermath.
  • The inner workings of the magma chambers that fuel supervolcanoes can evolve in ways that strongly influence the style of future eruptions.
  • The volcanic winter that grips the planet in the wake of a supereruption is probably shorter than once suspected, although chemical reactions in the atmosphere may be much more dangerous.
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