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Couture crater
Lac Couture
Couture crater LC08 L1TP 020018 20150905 20200908 02 T1.jpg
Landsat image of Lac Couture (September 2015)
Impact crater/structure
Confidence Confirmed
Diameter 13 km (8.1 mi)
Exposed Yes
Coordinates 60°36′N 75°43′W / 60.600°N 75.717°W / 60.600; -75.717
Country Canada
State Quebec
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Couture crater LC08 L1TP 020018 20151108 20200908 02 T1
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.

Most of the lake covers an 8 km in diameter impact crater. The crater is estimated to be 430 ± 25 million years old (Silurian). 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.

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