Impact crater lake
{{Short description|Lake formed within an impact crater}}
{{Refimprove|date=February 2018}}
File:Manicouagan-EO.JPG, Canada]]
File:Siljan WorldWind.jpg. Lake Siljan is a large part of the southwest edge of the much-eroded crater.]]
File:Lonar Lake.jpg in India]]
An impact crater lake is a lake inside a depression caused by the impact of a meteor. It is also known as an annular lake in cases where the water body is shaped like a ring, as many impact crater lakes are.
Examples
One of the largest impact crater lakes is Lake Manicouagan in Canada; the crater is a multiple-ring structure about {{convert|100|km|-1|abbr=on}} across, with its {{convert|70|km|-1|abbr=on}} diameter inner ring its most prominent feature; it contains a {{convert|70|km|-1|abbr=on}} diameter annular lake, surrounding an inner island plateau, René-Levasseur Island. It is Earth's sixth-largest confirmed impact crater according to rim-to-rim diameter.{{cite web|title=Impact Structures listed by Diameter (Increasing)|url=http://www.passc.net/EarthImpactDatabase/Diametersort.html|publisher=PASSC|accessdate=6 July 2012|archive-url=https://web.archive.org/web/20130708133805/http://www.passc.net/EarthImpactDatabase/Diametersort.html|archive-date=8 July 2013|url-status=dead}}
List
See also
{{portal|Lakes}}