Chicxulub impact crater
E45060
The Chicxulub impact crater is a massive buried structure in Mexico’s Yucatán Peninsula formed by an asteroid impact widely linked to the mass extinction event that wiped out the non-avian dinosaurs.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Chicxulub impact crater canonical | 5 |
| Chicxulub impact event | 3 |
| Chicxulub impact structure | 2 |
| Chicxulub impact | 1 |
| Chicxulub impact crater drilling project | 1 |
| Chicxulub impact region | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T344071 — 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: Chicxulub impact crater Context triple: [Cretaceous–Paleogene boundary, correlatesWith, Chicxulub impact crater]
-
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.
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B.
Gakkel Ridge
Gakkel Ridge is a slow-spreading mid-ocean ridge located beneath the Arctic Ocean, forming the tectonic boundary between the North American and Eurasian plates.
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C.
Cretaceous–Paleogene boundary
The Cretaceous–Paleogene boundary marks the geological transition 66 million years ago associated with a mass extinction event that wiped out non-avian dinosaurs and many other species, likely triggered by a large asteroid impact.
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D.
Tokopah Valley
Tokopah Valley is a scenic glacial valley in California’s Sierra Nevada known for its granite cliffs, alpine meadows, and proximity to Tokopah Falls within Sequoia National Park.
-
E.
Valee
Valee is an American rapper known for his laid-back flow, minimalist beats, and work with Kanye West’s G.O.O.D. Music label.
- 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: Chicxulub impact crater Target entity description: The Chicxulub impact crater is a massive buried structure in Mexico’s Yucatán Peninsula formed by an asteroid impact widely linked to the mass extinction event that wiped out the non-avian dinosaurs.
-
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.
Gakkel Ridge
Gakkel Ridge is a slow-spreading mid-ocean ridge located beneath the Arctic Ocean, forming the tectonic boundary between the North American and Eurasian plates.
-
C.
Cretaceous–Paleogene boundary
The Cretaceous–Paleogene boundary marks the geological transition 66 million years ago associated with a mass extinction event that wiped out non-avian dinosaurs and many other species, likely triggered by a large asteroid impact.
-
D.
Tokopah Valley
Tokopah Valley is a scenic glacial valley in California’s Sierra Nevada known for its granite cliffs, alpine meadows, and proximity to Tokopah Falls within Sequoia National Park.
-
E.
Valee
Valee is an American rapper known for his laid-back flow, minimalist beats, and work with Kanye West’s G.O.O.D. Music label.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astrobleme
ⓘ
impact crater ⓘ |
| age | about 66 million years ⓘ |
| associatedWith |
Cretaceous–Paleogene mass extinction
ⓘ
extinction of many ammonites ⓘ extinction of many marine reptiles ⓘ extinction of non-avian dinosaurs ⓘ |
| burialDepth | several hundred meters below surface in many areas ⓘ |
| buriedUnder | younger sedimentary rocks ⓘ |
| causeOf | global environmental disruption ⓘ |
| climateEffect |
longer-term climatic perturbations
ⓘ
short-term global cooling ⓘ |
| country | Mexico ⓘ |
| diameter | about 150 kilometers ⓘ |
| discoveredBy |
Antonio Camargo
ⓘ
Glen Penfield ⓘ |
| discoveryDate | late 1970s ⓘ |
| discoveryMethod | geophysical survey ⓘ |
| energyRelease | on the order of 10^23 joules ⓘ |
| evidence |
impact melt rocks
ⓘ
iridium anomaly ⓘ shocked quartz ⓘ |
| geologicalBoundary | Cretaceous–Paleogene boundary ⓘ |
| geologicalPeriod | Late Cretaceous ⓘ |
| identifiedAsImpactStructure | 1990s ⓘ |
| impactEvent |
Chicxulub impact crater
self-linksurface differs
ⓘ
surface form:
Chicxulub impact event
|
| impactingBody | asteroid ⓘ |
| impactorDiameter | about 10 kilometers ⓘ |
| languageOfName | Yucatec Maya ⓘ |
| linkedTo |
global ejecta layer
ⓘ
global iridium-rich K–Pg boundary layer ⓘ worldwide tektite deposits ⓘ |
| locatedIn |
Gulf of Mexico
ⓘ
Yucatán Peninsula ⓘ state of Yucatán ⓘ |
| locatedNear | town of Chicxulub Pueblo ⓘ |
| namedAfter | Chicxulub Pueblo ⓘ |
| nameMeaning | “tail of the devil” in Yucatec Maya ⓘ |
| oneOfLargest | known impact structures on Earth ⓘ |
| partOf | North America ⓘ |
| radius | about 75 kilometers ⓘ |
| researchProject | International Ocean Discovery Program drilling project 364 ⓘ |
| significance | key evidence for impact hypothesis of K–Pg extinction ⓘ |
| structureFeature |
multi-ring basin
ⓘ
peak ring ⓘ |
| studiedBy |
geologists
ⓘ
geophysicists ⓘ paleontologists ⓘ |
| tsunamiGeneration | mega-tsunamis in the Gulf of Mexico ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Chicxulub impact crater Description of subject: The Chicxulub impact crater is a massive buried structure in Mexico’s Yucatán Peninsula formed by an asteroid impact widely linked to the mass extinction event that wiped out the non-avian dinosaurs.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Chicxulub impact event
this entity surface form:
Chicxulub impact event
this entity surface form:
Chicxulub impact structure
International Ocean Discovery Program drilling project 364
→
alsoKnownAs
→
Chicxulub impact crater
ⓘ
this entity surface form:
Chicxulub impact crater drilling project
International Ocean Discovery Program drilling project 364
→
hasResearchArea
→
Chicxulub impact crater
ⓘ
International Ocean Discovery Program drilling project 364
→
linkedToEvent
→
Chicxulub impact crater
ⓘ
this entity surface form:
Chicxulub impact event
this entity surface form:
Chicxulub impact structure
this entity surface form:
Chicxulub impact region
this entity surface form:
Chicxulub impact