Combined impacts of volcanic eruptions in India and the impact of an asteroid in Mexico brought about one of Earth's biggest mass extinctions of dinosaurs 66 million years ago, a new study has confirmed. Andrea Dutton from University of Florida and colleagues from University of Michigan in the US utilised a new technique of analysis to reconstruct Antarctic ocean temperatures that support the idea that the combined impacts of volcanic eruptions and an asteroid impact brought about one of Earth's biggest mass extinctions 66 million years ago.extinctions 66 million years ago.

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