These changes make the minerals in a crater look different from those in the surrounding bedrock.Andrew Glikson, an earth scientist at Australian National University who studies asteroid impacts, was not involved with this study but “found it to document a bona-fide impact structure.
”But others, like David Kring at the Lunar and Planetary Institute remain skeptical.
Kring comments that “it is difficult to fully assess the data in support of shock-metamorphism, so I am not yet sure convincing, diagnostic evidence of impact exists.”
“There’s a lot of new potential things to go after here after this discovery,” says Kjær.Regardless of the impact of this specific crater, Kjær says, he’s thrilled that the discovery was still possible.
“The world’s surface has been surveyed forth and back with all kinds of things, satellites or whatever, but you can still go out and make such a discovery.
I think if I was a young scientist or person wanting to do science, I would say, wow, the age of discovery is still honorable.
”This article originally appeared on discovermagazine.com. »
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