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Antarctic crater

OK, what's this about? First, it's science by poster session and press release (this one's from Ohio State). The research group found in a gravity survey a giant crater in the rock floor a mile under the Antarctic ice sheet. It's 300 miles across, apparently, which puts it into the mega-impact category, larger than Chicxulub. The rest is SPECULATION, because we have no data from the rocks. The researchers claim a connection with the Permo-Triassic impact. I wouldn't be surprised, but the evidence for the connection is just not there, even though a large part of the press release is devoted to it.


Richard Cowen