Studying largest impact crater in the US, buried for 35 million years

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About 35 million years ago, an asteroid hit the ocean off the East Coast of North America. Its impact formed a 25-mile diameter crater that now lies buried beneath the Chesapeake Bay. A team of researchers has obtained drilling samples from the Ocean Drilling Project site 1073 and dated them with the ”uranium-thorium-helium technique” for the first time.

This full article appears on <a href="https://www.sciencedaily.com/releases/2019/08/190813160532.htm">Science Daily</a>

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