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- Younger_Dryas_impact_hypothesis abstract "The Younger Dryas impact hypothesis, also known as the Clovis comet hypothesis, is one of the competing scientific explanations for the onset of the Younger Dryas cold period after the last glacial period. The hypothesis, which scientists continue to debate, proposes that the climate of that time was cooled by the impact or air burst of one or more comets.The general hypothesis states that about 12,900 BP calibrated (10,900 14C uncalibrated) years ago, air burst(s) or impact(s) from a near-Earth object(s) set areas of the North American continent on fire, disrupted climate and caused the Quaternary extinction event in North America. This resulted in the extinction of most of the megafauna, and the rapid demise of the North American Clovis culture. The Younger Dryas ice age lasted for about 1,200 years before the climate warmed again. These events are also seen as part of the Holocene extinction phenomenon.One or more big explosions may have occurred above or possibly on the Laurentide Ice Sheet in the region of the Great Lakes. Though no major impact crater has been identified, the proponents argue that it would be physically possible for such an air burst to have been similar to but orders of magnitude larger than the Tunguska event of 1908. The hypothesis proposed that animal and human life in North America not directly killed by the blast or the resulting wildfires would have suffered due to the disrupted ecologic relationships affecting the continent.The impact of this postulated event (or series of events) goes beyond the Americas. A number of studies reported evidence of this impact around the world. For example, James Wittke et al. argued for the deposition of impact spherules 12,800 years ago across four continents, including Europe and the Middle East.".
- Younger_Dryas_impact_hypothesis wikiPageExternalLink the-younger-dryas-impact-hypothesis.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink 7808171.stm.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink evidence-for-younger-dryas-impact-event.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+SciencyThoughts+%28Sciency+Thoughts%29.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink New_Clovis_Age_Comet_Impact_Theory_999.html.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink comet.pdf.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink mg19426052.900.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink Clovis_Comet_Debate.html.
- Younger_Dryas_impact_hypothesis wikiPageExternalLink display.aspx?pkey=3019.
- Younger_Dryas_impact_hypothesis wikiPageID "11338425".
- Younger_Dryas_impact_hypothesis wikiPageLength "45191".
- Younger_Dryas_impact_hypothesis wikiPageOutDegree "68".
- Younger_Dryas_impact_hypothesis wikiPageRevisionID "703851324".
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Antilles.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Atacama_Desert.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Before_Present.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Brown_bear.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Camel.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Caribbean.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Carolina_bay.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Category:Ecological_theories.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Category:Extinction_events.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Category:Hypothetical_impact_events.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Chondrite.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Clovis_culture.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Comet.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Electron_microscope.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Emil_Haury.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink File:Firestone_carolina_bays.jpg.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Fullerene.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Gary_Haynes.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Graphane.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Graphene.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Great_Lakes.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Guanajuato.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Helium-3.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Holocene_extinction.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Iridium.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Lake_Cuitzeo.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Last_glacial_period.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Laurentide_Ice_Sheet.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Lehner_Mammoth-Kill_Site.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Lonsdaleite.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Mammoth.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Megalocnus.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Nanodiamond.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Near-Earth_object.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink North_America.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Paleo-Indians.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Placer_deposit.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Platinum_group.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Pleistocene.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Pleistocene_megafauna.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Quaternary_extinction_event.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Radiocarbon_dating.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Russia.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Sakha_Republic.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Short-faced_bear.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Siberia.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Spherulite.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink The_Journal_of_Geology.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Tollmanns_hypothetical_bolide.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Tunguska_event.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Vance_Haynes.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Wildfire.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Wood_bison.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Woolly_mammoth.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Wrangel_Island.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink Younger_Dryas.
- Younger_Dryas_impact_hypothesis wikiPageWikiLink File:Tunguska_event_fallen_trees.jpg.
- Younger_Dryas_impact_hypothesis wikiPageWikiLinkText "Younger Dryas impact hypothesis".
- Younger_Dryas_impact_hypothesis wikiPageUsesTemplate Template:Cite_web.
- Younger_Dryas_impact_hypothesis wikiPageUsesTemplate Template:Reflist.
- Younger_Dryas_impact_hypothesis wikiPageUsesTemplate Template:Rp.
- Younger_Dryas_impact_hypothesis subject Category:Ecological_theories.
- Younger_Dryas_impact_hypothesis subject Category:Extinction_events.
- Younger_Dryas_impact_hypothesis subject Category:Hypothetical_impact_events.
- Younger_Dryas_impact_hypothesis type Event.
- Younger_Dryas_impact_hypothesis type Event.
- Younger_Dryas_impact_hypothesis type Theory.
- Younger_Dryas_impact_hypothesis comment "The Younger Dryas impact hypothesis, also known as the Clovis comet hypothesis, is one of the competing scientific explanations for the onset of the Younger Dryas cold period after the last glacial period.".
- Younger_Dryas_impact_hypothesis label "Younger Dryas impact hypothesis".
- Younger_Dryas_impact_hypothesis sameAs Q1092095.
- Younger_Dryas_impact_hypothesis sameAs Hipótesis_del_cometa_Clovis.
- Younger_Dryas_impact_hypothesis sameAs Pleisztocén–holocén_becsapódási_esemény.
- Younger_Dryas_impact_hypothesis sameAs Impatto_cosmico_del_Dryas_recente.
- Younger_Dryas_impact_hypothesis sameAs m.02r85t8.
- Younger_Dryas_impact_hypothesis sameAs Q1092095.
- Younger_Dryas_impact_hypothesis sameAs 新仙女木事件.
- Younger_Dryas_impact_hypothesis wasDerivedFrom Younger_Dryas_impact_hypothesis?oldid=703851324.
- Younger_Dryas_impact_hypothesis isPrimaryTopicOf Younger_Dryas_impact_hypothesis.