oa Civil Engineering = Siviele Ingenieurswese - Evidence indicates biggest extinction wasn't caused by asteroid or comet

Volume 13, Issue 2
  • ISSN : 1021-2000



Extracted from text ... NEWS SCAN EVIDENCE INDICATES BIGGEST EXTINCTION WASN'T CAUSED BY ASTEROID OR COMET FOR THE LAST THREE YEARS evidence has been building that the impact of a comet or asteroid triggered the biggest mass extinction in Earth history, but new research from a team headed by a University of Washington (UW) scientist disputes that notion. In a paper published recently by Science Express, the online version of the journal Science, the researchers say they have found no evidence for an impact at the time of 'the Great Dying' 250 million years ago. Instead, their research indicates the culprit might have been atmospheric ..

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