Three unique photographs of a recent volcanic eruption in a remote part of Ecuador show a plume unlike any previously documented, and hint at a newly recognized hazard, say scientists at the University of Illinois at Urbana-Champaign.
Plume of Volcán Reventador
"The usual volcanic plume consists of a stalk capped with an umbrella, and resembles the mushroom of an atom bomb blast," said geology professor Susan Kieffer, "but the umbrella on this plume was wavy, like the shell of a scallop."
In a paper scheduled to appear March 15 in the journal Geophysical Research Letters, Kieffer, theoretical and applied mechanics professor Gustavo Gioia, and graduate student Pinaki Chakraborty explain what might have caused the umbrella to scallop, a task made more difficult by the scarcity of information.
James E. Kloeppel | EurekAlert!
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