John Seach, Volcano Live

 Volcanic Smoke - John Seach
(Volcanic Dust)

Smoke is a term to describe either steam from a fumarole or dark emissions from a volcanic vent.
Volcanic smoke is not caused by combustion but is more like dust.
During the 2000 eruptions of Mt Etna smoke rings were formed during an unusual
series of events.

Volcanic Smoke
Copyright John Seach