Topic
Volcanic ash
2 questions tagged Volcanic ash — spanning every one of the seven Ws.
what
What is a tephra?
Tephra is the umbrella term for all volcanic fragments thrown into the air during an eruption, from ash to bombs.
VolcanoesVolcanic ash
what
What is an ashfall?
Ashfall is volcanic ash that falls back to the ground after being carried into the atmosphere by an eruption.
VolcanoesVolcanic ash