Final answer:
Transition in volcanoes refers to the change in eruptive style and activity over time. It may involve a shift between explosive and effusive eruptions or a change in the type of magma erupted. An example of this transition is the Mount St. Helens eruption sequence.
Step-by-step explanation:
Transition in volcanoes refers to the change in eruptive style and activity of a volcano over time. It can involve a shift from explosive eruptions to effusive eruptions or vice versa, or a change in the type of magma being erupted. For example, a volcano may transition from producing mainly ash and pumice in explosive eruptions to generating lava flows in effusive eruptions.
One famous example of a transition in volcanoes is the eruption sequence of Mount St. Helens in the United States. Initially, the volcano had explosive eruptions in 1980, but over time, it transitioned to effusive eruptions with lava flowing from the summit crater.
Understanding transitions in volcanoes is important for predicting volcanic activity and assessing volcanic hazards, as different eruptive styles can have varying impacts on nearby communities and the environment.
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