Sunday, January 12, 2020

Finding a big crater


I learned from this article that about 800K years ago, a big asteroid impact scattered tektites (solidified droplets of melt from the impact) over a wide area of the Earth.

So something definitely hit the Earth then.  But Earth being what it is, geological and all, scientists didn't know where the hit was.

But now they do.  It's in Laos (Southeast Asia).


800,000 Years Ago, a Meteor Slammed Into Earth. Scientists Just Found the Crater.
"Geochemical analysis and local gravity readings told researchers that the crater lay in southern Laos on the Bolaven Plateau; the ancient impact was concealed under a field of cooled volcanic lava spanning nearly 2,000 square miles (5,000 square kilometers), the scientists reported in a new study."

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