Sudbury Basin

Sudbury Basin
Sudbury Basin
Sudbury Structure
	NASA World Wind satellite image of the Sudbury astrobleme
Impact crater/structure
Confidence	Confirmed
Diameter	130 km (81 mi)
Age	1849 Ma; Paleoproterozoic
Exposed	Yes
Drilled	Yes
Bolide type	Chondrite
Location
Coordinates	46°36′N 81°11′W / 46.600°N 81.183°W
Country	Canada
Province	Ontario
	Location of the crater in Canada

The Sudbury Basin (/ˈsʌdbəri/), also known as Sudbury Structure or the Sudbury Nickel Irruptive, is a major geological structure in Ontario, Canada. It is the third-largest known impact crater or astrobleme on Earth, as well as one of the oldest.^[1] The crater was formed 1.849 billion years ago in the Paleoproterozoic era.^[2]

The basin is located on the Canadian Shield in the city of Greater Sudbury, Ontario. The former municipalities of Rayside-Balfour, Valley East and Capreol lie within the Sudbury Basin, which is referred to locally as "The Valley". The urban core of the former city of Sudbury lies on the southern outskirts of the basin.

An Ontario Historical Plaque was erected by the province to commemorate the discovery of the Sudbury Basin.^[3]

^ "Sudbury". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.
^ Cite error: The named reference Davis was invoked but never defined (see the help page).
^ Brown, Alan L. "Discovery of the Sudbury Nickel Deposits". Ontario's Historical Plaques. Retrieved 2018-05-12.

[1] "Sudbury". Earth Impact Database. Planetary and Space Science Centre University of New Brunswick Fredericton. Retrieved 2017-10-09.

[Davis-2] Cite error: The named reference Davis was invoked but never defined (see the help page).

[3] Brown, Alan L. "Discovery of the Sudbury Nickel Deposits". Ontario's Historical Plaques. Retrieved 2018-05-12.

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