La Moinerie crater
Encyclopedia
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
in Quebec
Quebec
Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....
, Canada. It is 8 km in diameter and the age is estimated to be 400 ± 50 million years (Silurian
Silurian
The Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.7 ± 1.5 Mya , to the beginning of the Devonian Period, about 416.0 ± 2.8 Mya . As with other geologic periods, the rock beds that define the period's start and end are well identified, but the...
or Devonian
Devonian
The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya , to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Mya...
). The crater is exposed to the surface and filled with water, forming Lac La Moinerie. Glaciers have eroded many of La Moinerie crater's original physical features, including much of the central uplift. It is located in Rivière-Koksoak, in the Kativik
Kativik, Quebec
Kativik is a territory equivalent to a regional county municipality of Quebec, with geographical code is 992. Its land area is 443,372.3 km² , and its population was 10,815 as of the 2006 Census of Canada....
territory.