Younger Dryas impact hypothesis
GPTKB entity
Statements (38)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific theory
|
| gptkbp:alternativeTo |
meltwater pulse hypothesis
volcanic eruption hypothesis |
| gptkbp:controversy |
alternative explanations for Younger Dryas cooling
disputed evidence lack of impact crater |
| gptkbp:criticizedFor |
paleoclimatologists
mainstream geologists |
| gptkbp:evidence |
nanodiamonds
charcoal layers magnetic grains melted spherules platinum anomalies |
| https://www.w3.org/2000/01/rdf-schema#label |
Younger Dryas impact hypothesis
|
| gptkbp:impact |
airburst
surface impact |
| gptkbp:impactDateProposed |
around 12,800 years ago
|
| gptkbp:influenced |
popular science media
pseudoscientific claims |
| gptkbp:proposedBy |
gptkb:Allen_West
gptkb:James_Kennett Richard Firestone comet or asteroid impact impact caused decline of Clovis culture impact caused megafaunal extinctions impact occurred in North America extraterrestrial impact caused Younger Dryas cooling |
| gptkbp:publishedIn |
gptkb:Proceedings_of_the_National_Academy_of_Sciences
gptkb:science |
| gptkbp:relatedTo |
gptkb:Younger_Dryas
gptkb:Clovis_culture |
| gptkbp:subjectOf |
geological research
archaeological research scientific debate |
| gptkbp:yearProposed |
2007
|
| gptkbp:bfsParent |
gptkb:James_P._Kennett
gptkb:James_Kennett |
| gptkbp:bfsLayer |
7
|