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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Bibliografiska uppgifter
Huvudupphovsmän: 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.
Materialtyp: Artigo
Språk:Inglês
Publicerad: National Academy of Sciences 2007
Ämnen:
Physical Sciences
Länkar: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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