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Lac Couture is a lake in Northern
Beals, C. S.; Dence, M. R.; Cohen, A. J., Astronomical Journal, Vol. 69, p. 134 (1964) Most of the lake covers an 8 km in diameter
Couture, Canada
In: Flamini E., Di Martino M., Coletta A. (eds) ''Encyclopedic Atlas of Terrestrial Impact Craters.'' Springer, Cham.
Aerial Exploration of the Couture Structure
Impact craters of Quebec Silurian impact craters Silurian Quebec .craters Impact crater lakes Landforms of Nord-du-Québec {{Canada-geology-stub
Lac Couture is a lake in Northern Quebec
Quebec ( ; )According to the Canadian government, ''Québec'' (with the acute accent) is the official name in Canadian French and ''Quebec'' (without the accent) is the province's official name in Canadian English is one of the thirtee ...
, Canada. It is located near Hudson Bay in the Kativik territory. The lake is approximately 150 meters deep.Evidence Suggesting a Meteorite Impact Origin for Lac Couture, Quebec.Beals, C. S.; Dence, M. R.; Cohen, A. J., Astronomical Journal, Vol. 69, p. 134 (1964) Most of the lake covers an 8 km in diameter
impact crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact crater ...
. The crater is estimated to be 430 ± 25 million years old ( Silurian). Breccia
Breccia () is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix.
The word has its origins in the Italian language, in which it means "rubble". A breccia may have a variety of ...
, suggesting impact origin, is present in boulders at the surface on islands around the perimeter of the lake. There is also a 25-meter central uplift in the lake floor, suggesting complex crater morphology.Flamini E., Coletta A., Battagliere M.L., Virelli M. (2019Couture, Canada
In: Flamini E., Di Martino M., Coletta A. (eds) ''Encyclopedic Atlas of Terrestrial Impact Craters.'' Springer, Cham.
References
External links
Aerial Exploration of the Couture Structure
Impact craters of Quebec Silurian impact craters Silurian Quebec .craters Impact crater lakes Landforms of Nord-du-Québec {{Canada-geology-stub