John Seach, Volcano Live

Volcanic Bomb - John Seach

Volcanic bombs are masses of lava greater than 64 mm diameter ejected from a vent.
Bombs are viscous when expelled and deform during flight to assume a characteristic shape on impact.

Types of volcanic bombs

  • Rotational bomb
  • Tear-shaped bomb
  • Spheroidal bomb
  • Spindle-shaped bomb
  • Pancake-shaped bomb
  • Slag bomb
  • Pumiceous bomb
  • Ribbon bomb
  • Cored bomb
  • Olivine bomb
  • Breadcrust bomb
  • Explosive bomb
  • Cow pat bomb


Volcanic Bomb
Copyright John Seach