Couture crater

Couture Crater
Lac Couture
Landsat image of Couture Crater, 2015
Couture crater is located in Quebec
Couture crater
Location within Quebec
Location
  • Quebec, Canada
  • 60°08′N 75°18′W / 60.13°N 75.3°W / 60.13; -75.3
Impact crater structure
ConfidenceConfirmed
Diameterc. 8 km
Depthc. 150 meters
Agec. 430 million years
ExposedYes
Couture Crater in 2015

Couture Crater is a crater in Northern Quebec, Canada. It was filled with water, making it also a lake. It is located near Hudson Bay in the Kativik territory. The crater is around 150 meters deep.

Most of the lake covers an 8 km in diameter impact crater. The crater is estimated to have formed around 430 ± 25 million years ago. Breccia, 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.

References

  1. 1 2 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 August 13, 2009.
  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.