Tag Archive | "geology"

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New Evidence Is Challenging What We Know About the Deadliest Mass Extinction in History


The extinction at the end of the Permian period 252 million years ago was one of the darkest chapters in the history of life. Up to 96% of all marine species and 70% of terrestrial life forms vanished in a geologic blink.

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What will really happen when the Yellowstone supervolcano erupts?


Lurking beneath Yellowstone National Park is a massive underground reservoir of magma, capped by the park's famous caldera. 640,000 years ago, a super eruption rocked the region. What would happen if another such event blasted the park today? We asked USGS geologist Jake Lowenstern, scientist-in-charge of the Yellowstone Volcano Observatory.

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