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Article: SEAFLOOR CRATER MAY HOLD CLUE TO EXTINCTIONS SITE OFF NOVA SCOTIA IS FIRST TO PROVIDE SEDIMENT LAYERS CONTAINING FOSSIL RECORD BEFORE, DURING AND AFTER IMPACT
- Article from:
- The Boston Globe (Boston, MA)
- Article date:
- June 29, 1987
- Author:
CopyrightCopyright 1987 The Boston Globe. Provided by ProQuest LLC. (Hide copyright information)
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A huge undersea crater off the coast of Nova Scotia, punched out
when a chunk of rock more than a mile across smashed into the Earth
some 50 million years ago, might be a key to proving a link between
meteorite impacts and the extinction of living species, scientists
said last week.
The idea that the impact of large asteroids or comets could
kill off many entire species of plant and animal life has been a
subject of raging scientific controversy since it was first
proposed seven years ago. The theory arose from the discovery of
signs of a huge meteorite impact at the same time a mass extinction
wiped out the dinosaurs, 65 million years ago.
The discovery of this undersea crater, which ...