Keywords |
  • Volcanology


A bomb is a more or less viscous lava fragment of a diameter between 6.4 cm and several metres which is projected along a ballistic trajectory by a volcanic eruption. According to their viscosity, they can be cigar-shaped (caused by spinning during the trajectory), cow pat shaped (by flattening on impact), bread crust shaped (with a skin resulting from water-magma interaction), etc.


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