Dino-Killing Asteroid Hit Just the Right Spot to Trigger Extinction

Dino-Killing Asteroid Hit Just the Right Spot to Trigger Extinction
Only 13 percent of Earth’s surface is made up of rocks that could have caused such a huge extinction event, a new paper argues.

http://ift.tt/2jcrpC3 November 9, 2017 at 10:16PM
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