volcanic bombs


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volcanic bombs

[väl′kan·ik ′bämz]
(geology)
Pyroclastic ejecta; the lava fragments, liquid or plastic at the time of ejection, acquire rounded forms, markings, or internal structure during flight or upon landing.
References in periodicals archive ?
These larger "volcanic bombs" can land as far as five kilometers from the actual eruption vent.
You could see layers of ash and volcanic bombs from different stages of the eruption.
Tephra ranges in size from volcanic ash (the smallest particles) to cinders (rock fragments) to larger rocks called volcanic bombs. Combined with gases, tephra has a frothy texture.