How does fire fountaining result in the creation of spherical glass beads?
Answer
By rapid cooling of ejected lava in the air
Fire fountaining is an explosive volcanic process occurring when lava contains high concentrations of gas. When this lava erupts, the gas expands rapidly, spraying the molten material into the air. As these droplets travel through the lunar environment, they undergo rapid cooling before hitting the ground, causing them to harden into tiny, spherical beads of glass. The size and shape of these beads serve as a signature of this specific type of volcanic event.
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