Sudbury Basin

E121725

astrobleme geological formation impact structure mining district

The Sudbury Basin is a massive ancient impact crater in Ontario, Canada, known as one of the world’s largest and oldest meteorite impact structures and a major mining region rich in nickel and other metals.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Sudbury Igneous Complex	2
Sudbury Basin canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T1021277 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Sudbury Basin
Context triple: [Big Nickel, hasNearbyAttraction, Sudbury Basin]

A. Vredefort Dome
Vredefort Dome is the world’s largest and oldest known impact crater, located in South Africa and formed by a massive meteorite strike over two billion years ago.
B. Parece Vela Basin
Parece Vela Basin is an oceanic basin in the western Pacific Ocean associated with the Philippine Sea Plate and known for its complex tectonic and volcanic features.
C. Jezero Crater
Jezero Crater is an ancient impact basin on Mars that once hosted a lake and river delta, making it a prime site for studying past habitability and searching for signs of ancient life.
D. Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
E. Orroral Valley
Orroral Valley is a scenic, historically significant valley in the Australian Capital Territory known for its natural landscapes, Aboriginal heritage sites, and former space tracking station.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Sudbury Basin
Target entity description: The Sudbury Basin is a massive ancient impact crater in Ontario, Canada, known as one of the world’s largest and oldest meteorite impact structures and a major mining region rich in nickel and other metals.

A. Vredefort Dome
Vredefort Dome is the world’s largest and oldest known impact crater, located in South Africa and formed by a massive meteorite strike over two billion years ago.
B. Parece Vela Basin
Parece Vela Basin is an oceanic basin in the western Pacific Ocean associated with the Philippine Sea Plate and known for its complex tectonic and volcanic features.
C. Jezero Crater
Jezero Crater is an ancient impact basin on Mars that once hosted a lake and river delta, making it a prime site for studying past habitability and searching for signs of ancient life.
D. Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
E. Orroral Valley
Orroral Valley is a scenic, historically significant valley in the Australian Capital Territory known for its natural landscapes, Aboriginal heritage sites, and former space tracking station.
F. None of above. chosen

Statements (53)

Predicate	Object
instanceOf	astrobleme ⓘ geological formation ⓘ impact structure ⓘ mining district ⓘ
administrativeRegion	Greater Sudbury metropolitan area ⓘ surface form: Greater Sudbury
age	about 1.85 billion years ⓘ
associatedCity	Sudbury ⓘ
contains	Sudbury Basin self-linksurface differs ⓘ surface form: Sudbury Igneous Complex breccia units ⓘ impact melt sheet ⓘ
continent	North America ⓘ
country	Canada ⓘ
diameter	about 250 km ⓘ
discoveredBy	Alexander Murray ⓘ
discoveryContext	geological survey in the 19th century ⓘ
economicImportance	important source of copper ⓘ important source of platinum-group elements ⓘ major global source of nickel ⓘ
environmentalInitiatives	land reclamation projects ⓘ
environmentalIssues	historical air pollution from smelting ⓘ
formationProcess	meteorite impact ⓘ
geologicalPeriod	Paleoproterozoic ⓘ
hasMiningCompanies	Glencore ⓘ Vale ⓘ
hasResource	cobalt ⓘ copper ⓘ gold ⓘ nickel ⓘ palladium ⓘ platinum ⓘ
hostRock	Sudbury Basin self-linksurface differs ⓘ surface form: Sudbury Igneous Complex
impactOrigin	large meteorite or asteroid ⓘ
impactStructureType	multi-ring impact basin ⓘ
knownFor	being one of the largest known impact craters on Earth ⓘ being one of the oldest known impact structures on Earth ⓘ copper deposits ⓘ major mining operations ⓘ nickel deposits ⓘ platinum-group metals ⓘ
length	about 62 km ⓘ
locatedIn	Canadian Shield ⓘ Ontario ⓘ
locatedNear	Greater Sudbury metropolitan area ⓘ surface form: Greater Sudbury
miningBegan	late 19th century ⓘ
notableFeature	concentric structural rings ⓘ elliptical basin shape ⓘ
oreType	nickel-copper sulfide ore ⓘ
partOf	Sudbury mining camp ⓘ
province	Ontario ⓘ
researchField	economic geology ⓘ impact cratering studies ⓘ planetary geology ⓘ
width	about 30 km ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Big Nickel → hasNearbyAttraction → Sudbury Basin ⓘ

Sudbury Basin → hostRock → Sudbury Basin self-linksurface differs ⓘ

this entity surface form: Sudbury Igneous Complex

Sudbury Basin → contains → Sudbury Basin self-linksurface differs ⓘ