A one‑point‑two‑meter cone looks harmless. Yet beneath it, the physics do not scale down. The same buoyant magma, the same confining rock, the same gas‑charged melt can feed a knee‑high vent or a mountain that dominates a horizon, because the engine sits deep in the crust, not at the surface.The key fact is blunt. Size at the surface is just packaging. Magma generation in the mantle through partia...More