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Ancient Supervolcano Eruptions Possibly Triggered Mass Extinctions

06/09/2010 05:12 am ET | Updated May 25, 2011

A supervolcano on the ocean floor might have spewed massive amounts of lava in a rapid amount of time, new findings that could help reveal the mysterious origin of some of these ancient goliaths, which may have triggered mass extinctions through Earth's history.

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