volcanism
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New Research Casts Doubt On Theory That Volcanoes Caused Dinosaur Extinction
Scientists have new evidence in their quest to settle the longstanding debate about whether it was a gigantic meteorite or massive volcanic eruptions that triggered the mass extinction that wiped out the dinosaurs.
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New Studies Of Ancient Lava Add Mystery To The Dinosaur Extinction Story
Solidified lava from ancient volcanoes, over a mile thick, covers a portion of west-central India nearly the size of Texas. Contained in the dramatic and craggy striped rock are secrets scientists are only beginning to uncover — secrets that could partially rewrite the story of the dinosaur mass extinction 66 million years ago.