Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:geological_formation
|
| gptkbp:associatedWith |
mass extinction
dinosaurs extinction |
| gptkbp:concentration |
higher than normal in boundary clay
|
| gptkbp:containsElement |
iridium
|
| gptkbp:discoveredBy |
gptkb:Luis_Alvarez
gptkb:Walter_Alvarez |
| gptkbp:discoveredIn |
1980
|
| gptkbp:foundIn |
gptkb:Gubbio,_Italy
gptkb:Stevns_Klint,_Denmark gptkb:New_Zealand gptkb:North_America |
| gptkbp:publishedIn |
gptkb:Science_(journal)
|
| gptkbp:relatedTo |
gptkb:Cretaceous–Paleogene_boundary
gptkb:Chicxulub_impactor |
| gptkbp:significance |
evidence for asteroid impact
|
| gptkbp:usedAsEvidenceFor |
impact hypothesis
|
| gptkbp:bfsParent |
gptkb:Alvarez_hypothesis_(dinosaur_extinction)
gptkb:Alvarez_hypothesis_(dinosaur_extinction_by_asteroid_impact) |
| gptkbp:bfsLayer |
5
|
| https://www.w3.org/2000/01/rdf-schema#label |
iridium anomaly
|