Volcanic Bomb

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Volcanic Bomb

 

a clump of lava, ejected during an eruption in a liquid or plastic state, which takes on one or another form in flight. Volcanic bombs are 1 cm to 7 m long. The most important of the many forms of volcanic bombs are the waferlike forms, characteristic of very liquid lava, clumps of which are flattened as they fall to the earth; twisted, spindlelike, pearlike, globular, and ribbon-shaped forms, characteristic of low-viscosity basaltic lavas, which harden in flight; and round or irregular multifaceted clumps of lava covered with a network of cracks—bread-crust bombs— characteristic of hardened acidic and andesite lavas.

References in periodicals archive ?
There was a time when they thought Etna was home to a Cyclops blindly throwing lava bombs. During the last few eruptions, families would barbecue meat and fish over the slow-moving lava.
The lake has been coughing out lava bombs containing these crystals for centuries.
Its conditions affect whether Erebus just exhales streams of carbon-rich gas or snorts out the occasional car-sized lava bomb.
"There were lava bombs as big as your head," he said, describing globs of semi-molten sulfur.
Nuee ardentes, or pyroclastic flows combine glowing ash, fist to house-sized lava bombs and superheated gases that explode out from erupting volcanoes.
Visitors will learn about geodes, lava bombs, crystals, obsidian and more at various geology stations.
This creates the predictable panic and mayhem, but the most unexpected result is a fiery geyser that erupts from the bubbling La Brea Tar Pits, sending meteor-like lava bombs skyrocketing and then back to the ground, filling the night air with cascading ash and finally producing a lava flow that heads right onto Wilshire Boulevard alongside the L.A.
A massive 1,000ft fissure has opened up on Hawaii's Kilaueavolcanohurling 45kg 'lava bombs' 100ft into the air and prompting yet more evacuations.
Mark Clawson, 64, who lives uphill from the latest fissure and so far is defying an evacuation order, said: "It is a near-constant roar akin to a full-throttle 747 interspersed with deafening, earth-shattering explosions that hurtle 100-pound (45-kg) lava bombs 100 feet (30 meters) into the air."
The molten world of Flamar is strewn with vicious volcanoes spewing lava bombs, and Trade World is a manic metropolis packed with evil criminals.
Lucy, a geography teacher at Diss High School in Norfolk, said last night: "Lava bombs of molten rock suddenly started flying through the air.