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Couture crater

Coordinates: 60°12′N 75°28′W / 60.200°N 75.467°W / 60.200; -75.467
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Couture crater
Lac Couture
Landsat image of Lac Couture (September 2015)
Impact crater/structure
ConfidenceConfirmed
Diameter13 km (8.1 mi)
ExposedYes
Location
Coordinates60°12′N 75°28′W / 60.200°N 75.467°W / 60.200; -75.467
CountryCanada
StateQuebec
Couture crater is located in Quebec
Couture crater
Location of the crater in Quebec
Couture crater in November 2015

Lac Couture is a lake in Northern Quebec, Canada. It is located near Hudson Bay in the Kativik territory. The lake is approximately 150 meters deep.[1]

Most of the lake covers an 8 km in diameter impact crater. The crater is estimated to be 430 ± 25 million years old (Silurian).[2] Breccia, suggesting impact origin, is present in boulders at the surface on islands around the perimeter of the lake.[1] There is also a 25-meter central uplift in the lake floor, suggesting complex crater morphology.[3]

References

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  1. ^ a b 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)
  2. ^ "Couture". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2009-08-13.
  3. ^ Flamini E., Coletta A., Battagliere M.L., Virelli M. (2019) Couture, Canada. In: Flamini E., Di Martino M., Coletta A. (eds) Encyclopedic Atlas of Terrestrial Impact Craters. Springer, Cham.
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