Scientists may have moved closer to understanding why some volcanoes produce towering lava fountains while others release lava in quieter, more gradual flows. According to new experimental research, a hidden effect of extreme heat within magma appears to play a key role in shaping eruption style. The experiments showed that superheated magma can delay crystal formation for more than eight hours, compared with just 20 minutes in magma that has not been superheated. This extended delay is significant because crystal development affects how magma flows and degasses, factors that help determine whether an eruption is explosive and fountain-like or relatively gentle.
The findings offer a fresh perspective on the internal processes that govern volcanic behavior, which scientists have long sought to explain. By demonstrating how superheating alters the timing of crystallization, the research suggests that temperature history inside magma chambers may be a more important variable than previously recognized. The study's authors indicate that incorporating this effect into models could improve forecasts of eruption dynamics and enhance hazard assessment for communities near active volcanoes. Further research is expected to examine how the phenomenon manifests in natural settings.
Independent reporting synthesized from primary wires and global correspondents.