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

  • R. B. Firestonea, A. Westc, +13 authors W. S. Wolbachr
  • Published 2007


aLawrence Berkeley National Laboratory, Berkeley, CA 94720; cGeoScience Consulting, Dewey, AZ 86327; dDepartment of Earth Sciences and eInstitute of Crustal Studies, University of California, Santa Barbara, CA 93106; fNorthern Arizona University, Flagstaff, AZ 86011; gInstitute for Isotope and Surface Chemistry, H-1525, Budapest, Hungary; hDepartment of… (More)


5 Figures and Tables