Alvarez hypothesis (dinosaur extinction by asteroid impact)

URI: https://gptkb.org/entity/Alvarez_hypothesis_(dinosaur_extinction_by_asteroid_impact)
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf scientific theory
gptkbp:affects dinosaurs
many other species
gptkbp:alternativeHypotheses climate change
volcanism
gptkbp:debatedBy gptkb:learned_society
gptkbp:describes gptkb:Cretaceous–Paleogene_extinction_event
gptkbp:effect gptkb:nuclear_winter
tsunamis
acid rain
collapse of food chains
darkened skies
global wildfires
gptkbp:event about 66 million years ago
gptkbp:evidence gptkb:Chicxulub_crater
gptkb:iridium_anomaly
https://www.w3.org/2000/01/rdf-schema#label Alvarez hypothesis (dinosaur extinction by asteroid impact)
gptkbp:impactCrater gptkb:Chicxulub_crater
gptkbp:impactSize about 10 km diameter asteroid
gptkbp:influencedBy geological evidence
paleontological evidence
gptkbp:locationOfImpact gptkb:Yucatán_Peninsula
gptkbp:proposedBy gptkb:Luis_Alvarez
gptkb:Walter_Alvarez
gptkbp:publishedIn gptkb:Science_(journal)
gptkbp:relatedTo gptkb:K–Pg_boundary
mass extinction
gptkbp:suggestsCause asteroid impact
gptkbp:widelyAccepted yes
gptkbp:yearProposed 1980
gptkbp:bfsParent gptkb:Luis_Alvarez
gptkbp:bfsLayer 4