Plate Tectonics and Igneous Activity:
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4 Terms
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Where are most volcanoes located?
Most volcanoes are along subduction zones, oceanic ridge systems, and hot spots.
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How does a convergent plate boundary create volcanic islands?
A descending plate partially melts, and the rising magma forms volcanic island arcs, e.g., Aleutian Islands.
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What occurs at divergent plate boundaries?
Lithospheric plates pull apart, causing partial melting and producing large volumes of basaltic magma.
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What are intraplate volcanic regions?
Volcanic areas formed by mantle plumes within rigid plates, e.g., Hawaiian Islands.