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One of America's biggest meteor craters is 100 million years younger than we thought — and coincided with a global extinction event | Live Science
Analysis of tiny zircon crystals buried within the 10-mile-wide Ames crater in northwest Oklahoma suggests that the submerged structure dates back to 370 million years ago, during the Frasnian-Famennian mass extinction event.
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Domainwww.livescience.com
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