| 41. | Pyroclastic flows are the result of explosive eruptions of molten or solid rock fragments, or both.
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| 42. | The vented gases help geologists determine the pressure's depth and the likelihood of an explosive eruption.
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| 43. | Low viscosity leads to gentler, less explosive eruptions.
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| 44. | Both craters were formed by explosive eruptions and distinguishing between the deposits of both is difficult.
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| 45. | The cycles end when the magma evolves to a rhyolitic composition, causing the most explosive eruptions.
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| 46. | The last explosive eruption involving the central volcanic centre was from Monta�a Blanca around 2000 years ago.
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| 47. | Another short explosive eruption in January 1929 also included an apparent pyroclastic flow and a lava flow.
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| 48. | Many thousand years of dormancy are expected between large explosive eruptions of volcanoes in the Garibaldi Belt.
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| 49. | The sea's pressure prevents explosive eruptions.
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| 50. | It has been termed a " supervolcano " because the caldera was formed by exceptionally large explosive eruptions.
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