Asteroids: Hit or miss?

February 1992
New Scientist;2/8/92, Vol. 133 Issue 1807, p23
Reports on research by geologists who believe asteroid impacts may not always cause mass extinctions. Findings that the Manicouagan crater in Quebec does not coincide with any extinction; Best evidence for an impact at the end of the Triassic reported by David Bice of Carleton College.


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