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Keyword: yucutan

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  • Mass-extinction controversy flares again (Chicxulub crater kills dinosaurs, or not?)

    04/11/2003 2:34:46 PM PDT · by SteveH · 29 replies · 1,280+ views
    Nature ^ | 10 April 2003 | Rex Dalton
    EGS-AGU-EUG Joint Assembly, Nice, April 2003 Mass-extinction controversy flares again Core from asteroid crater fuels debate on what wiped out the dinosaurs. 10 April 2003 REX DALTON [photo] The dinosaurs were wiped out 65 million years ago. © alamy.com A claim that the asteroid that struck Mexico 65 million years ago did not cause the mass extinction that wiped out dinosaurs triggered heated debate at a meeting this week. The announcement is based on preliminary analysis of the first core drilled into the 185-kilometre Chicxulub asteroid crater near the Yucatan Peninsula. Gerta Keller of Princeton University in New Jersey says...