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Today – 4/20

Today – 4/20. Volcano summary Mt Pinatubo Evaluations. Fissure Eruption Kilauea January 1983. Royal Gardens Subdivision June 1983. September 1983. August 1983. Puu O’o and Sunset Crater. Mt St Helens v. San Francisco Peaks. XC Today. Noon, Gallagher theater. Last Time.

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Today – 4/20

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  1. Today – 4/20 • Volcano summary • Mt Pinatubo • Evaluations

  2. Fissure Eruption Kilauea January 1983

  3. Royal Gardens Subdivision June 1983

  4. September 1983

  5. August 1983

  6. Puu O’o and Sunset Crater

  7. Mt St Helens v. San Francisco Peaks

  8. XC Today • Noon, Gallagher theater

  9. Last Time • Yellowstone – hotspot caldera explosions • Long Valley caldera – signs of unrest: ground swell, eqs, dying trees and animals • Movement of energy drives physical (and biological) processes • In the interiors of moons of large planets, heat is generated by “tidal friction”, i.e. gravitational energy is transformed into thermal energy, driving volcanism

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