Volcanoes Played Pivotal Role In Ancient Ice Age, Mass Extinction (IMAGE)

Ohio State University

Volcanoes Played Pivotal Role In Ancient Ice Age, Mass Extinction

Caption

Researchers at Ohio State University have discovered that volcanoes played a pivotal role in a deadly ice age that occurred nearly half a billion years ago. This photograph shows volcanic ash beds -- formed around 455 million years ago -- layered in the rock of the Nashville Dome area in central Tennessee.

Credit

Photo by Matthew Saltzman, courtesy of Ohio State University.

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