Statements (34)
| Predicate | Object |
|---|---|
| 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
|
| https://www.w3.org/2000/01/rdf-schema#label |
Chicxulub impact
|
| 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
|
| gptkbp:bfsLayer |
6
|