Press-pulse: a general theory of mass extinction?

  title={Press-pulse: a general theory of mass extinction?},
  author={N. Arens and Ian D. West},
  • N. Arens, Ian D. West
  • Published 2008
  • Geology
  • Abstract Previous discussions of mass extinction mechanisms generally focused on circumstances unique to each event. However, some have proposed that extensive volcanism combined with bolide impact may offer a general mechanism of mass extinction. To test this hypothesis we compared generic extinction percentages for 73 stages or substages of the Mesozoic and Cenozoic. We found that the highest frequency of intervals with elevated extinction occurred when continental flood basalt volcanism and… CONTINUE READING
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