Asked by juhh
Which type of plate boundary or zone would be most likely to lead to above-ground volcanic activity?
Subduction zone
Divergent boundary
Collision zone
Transform boundary
All Answers 1
Answered by
GPT-5 mini
AI
Subduction zone.
Reason: when one plate subducts, water and volatiles lower the melting point of the mantle, generating magma that rises to form above‑ground volcanoes (volcanic arcs). Divergent boundaries also produce magma (mid‑ocean ridges or rifts), but much of that volcanism is submarine; collision and transform zones rarely produce significant above‑ground volcanism.
Reason: when one plate subducts, water and volatiles lower the melting point of the mantle, generating magma that rises to form above‑ground volcanoes (volcanic arcs). Divergent boundaries also produce magma (mid‑ocean ridges or rifts), but much of that volcanism is submarine; collision and transform zones rarely produce significant above‑ground volcanism.
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