Chicxulub impact crater

E45060

astrobleme impact crater

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.

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All labels observed (9)

Label	Occurrences
Chicxulub impact crater canonical	6
Chicxulub impact event	3
Chicxulub impact structure	3
Chicxulub	2
Chicxulub crater	2
Chicxulub impact	1
Chicxulub impact crater drilling project	1
Chicxulub impact region	1
Chicxulub 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.
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
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 event ⓘ linked to: Chicxulub impact crater
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