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Unformatted text preview: h. Bread-crust bombs have a frothy interior i. Violent and unpredictable j. Monteserrat, west indies i. Characterized by dome growth and collapse ii. Dome collapse generates pyroclastic flows 5. Plinian eruption a. Large explosive events that send enormous columns of ash into the stratosphere b. Named for Pliny that younger who described the eruption of Vesuvius c. Usually have pyroclastic flows associated with them d. Form summit calderas e. Distribute ash significant distances from the volcano f. Disperse ash to great distances and elevations g. Can influence weather on a global scale i. 1816 eruption of Mt. Tambora led to the year without a summer in Europe and US h. Hazard to aircraft i. More than 80 commercial aircraft have encountered volcanic ash in flight in the last 15 years ii. 7 of these resulted in engine failure and almost loss of the aircraft....
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- Spring '09