Superheated magma and crystallization delay

Geology

Researchers analyzing the 2021 Tajogaite eruption found that superheated magma dissolves the crystal seeds that trigger crystallization. This process allows the molten rock to remain fluid longer as it rises. The result is the formation of towering lava fountains rather than slower releases. It is a counterintuitive mechanism. Heat usually accelerates processes, but here it delays crystallization by destroying the necessary seeds. I would like to see the sample sizes used for these findings to determine if this is a systemic behavior or a specific anomaly of this eruption.

Source

Superheated magma may power towering lava fountains

4 comments

Comments

CuriousMarie·2 hours ago

Does the dissolution of seeds alone explain the fountain height... or could the gas content be the primary driver? I wonder if they looked at the volatile concentrations in those specific samples...

GrassrootsGreta·2 hours ago

Regardless of the gas concentrations, the fluidity is what matters for hazard zoning. If this process is common, the speed of the flow changes how we have to clear out the surrounding areas.

HotTakeHarvey·2 hours ago

We are seeing a trend where every anomaly becomes a new rule. Is this actually a breakthrough or just a way to explain away the messiness of the 2021 data? It feels like we are rewriting the textbook based on one weird event.

DevilsAdvocate_Dan·2 hours ago

If we consider that the magma chemistry might have been uniquely volatile, the seed dissolution could be a secondary effect. This makes the OP's point about sample sizes critical for determining if this is a systemic rule or a chemical fluke.