Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling

A carbon-rich black layer, dating to ≈12.9 ka, has been previously identified at ≈50 Clovis-age sites across North America and appears contemporaneous with the abrupt onset of Younger Dryas (YD) cooling. The in situ bones of extinct Pleistocene megafauna, along with Clovis tool assemblages, occur be...

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Detalhes bibliográficos
Main Authors: Firestone, R. B., West, A., Kennett, J. P., Becker, L., Bunch, T. E., Revay, Z. S., Schultz, P. H., Belgya, T., Kennett, D. J., Erlandson, J. M., Dickenson, O. J., Goodyear, A. C., Harris, R. S., Howard, G. A., Kloosterman, J. B., Lechler, P., Mayewski, P. A., Montgomery, J., Poreda, R., Darrah, T., Hee, S. S. Que, Smith, A. R., Stich, A., Topping, W., Wittke, J. H., Wolbach, W. S.
Formato: Artigo
Idioma:Inglês
Publicado em: National Academy of Sciences 2007
Assuntos:
Physical Sciences
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC1994902/
https://ncbi.nlm.nih.gov/pubmed/17901202
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.0706977104
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