|
gptkbp:instanceOf
|
gptkb:event
|
|
gptkbp:calderaDiameter
|
~180 km
|
|
gptkbp:cause
|
gptkb:Cretaceous–Paleogene_extinction_event
tsunamis
wildfires
acid rain
mass extinction
global climate change
extinction of non-avian dinosaurs
|
|
gptkbp:discoveredBy
|
gptkb:Luis_Alvarez
gptkb:Walter_Alvarez
|
|
gptkbp:energyReleased
|
~10^23 joules
|
|
gptkbp:evidence
|
gptkb:shocked_quartz
iridium layer
tektites
crater structure
|
|
gptkbp:hasCrater
|
~20 km
|
|
gptkbp:impactorDiameter
|
10–15 km
|
|
gptkbp:impactorType
|
gptkb:asteroid
comet (hypothesized)
|
|
gptkbp:occurredApproximately
|
66 million years ago
|
|
gptkbp:occurredIn
|
gptkb:Mexico
gptkb:Chicxulub_crater
gptkb:Yucatán_Peninsula
|
|
gptkbp:relatedTo
|
gptkb:K–Pg_boundary
asteroid impact hypothesis
|
|
gptkbp:significance
|
end of Mesozoic Era
start of Cenozoic Era
|
|
gptkbp:studiedBy
|
geologists
paleontologists
planetary scientists
|
|
gptkbp:bfsParent
|
gptkb:Cretaceous_Period
gptkb:Sudbury_meteorite_impact
gptkb:Hazards_Due_to_Comets_and_Asteroids
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Chicxulub impact
|