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Manicouagan Crater
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Manicouagan crater
The
Manicouagan Crater
is one of the oldest known
impact craters
and is the largest 'visible' impact crater on
Earth
, located primarily in
Manicouagan Regional County Municipality
in the
Côte-Nord
region of
Québec
,
Canada
, about north of the city of
Baie-Comeau
. At roughly 213-215 million years old, Manicouagan is one of the oldest large
astroblemes
still visible on the surface. Its northernmost part is located in
Caniapiscau Regional County Municipality
. It is thought to have been caused by the impact of a diameter
meteorite
about 215.5 million years ago (
Triassic
Period). It was once thought to be associated with the end-
Carnian
extinction event
.
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