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Santorini: The Story of a Stratovolcano

Lecture 11. Santorini: The Story of a Stratovolcano. 300-500 Ka. Granitic basement. 600 Ka. Skaros shield ~ 75 Ka. Cycle 2. Cycle 1. Cycle 1. Middle pumice, ~100 Ka. Middle Pumice, ~ 100 Ka. D = 5km,  = 60°, g = 10 m/s 2. Horizontal distance = horizontal velocity x time.

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Santorini: The Story of a Stratovolcano

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  1. Lecture 11 Santorini: The Story of a Stratovolcano

  2. 300-500 Ka Granitic basement 600 Ka

  3. Skaros shield ~ 75 Ka

  4. Cycle 2 Cycle 1

  5. Cycle 1

  6. Middle pumice, ~100 Ka

  7. Middle Pumice, ~ 100 Ka

  8. D = 5km,  = 60°, g = 10 m/s2 Horizontal distance = horizontal velocity x time 5000 = Vo x cos  x t 10000 = Vo x t Vertical distance = 0 0 = Vo x sin  x t – 1/2 x g x t2 0.866 Vo = 5 t t = 0.1732 Vo So, 10,000 = 0.1732 Vo2 Vo ~ 240 m/s ~ 864 km/hr ~ 540 mph t ~ 41.5 sec

  9. End of Cycle 1

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