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Evidence for an extraterrestrial impact 12,900 years ago that contributed to the megafaunal extinctions and the Younger Dryas cooling.
Firestone RB, West A, Kennett JP, Becker L, Bunch TE, Revay ZS, Schultz PH, Belgya T, Kennett DJ, Erlandson JM, Dickenson OJ, Goodyear AC, Harris RS, Howard GA, Kloosterman JB, Lechler P, Mayewski PA, Montgomery J, Poreda R, Darrah T, Hee SS, Smith AR, Stich A, Topping W, Wittke JH, Wolbach WS. Firestone RB, et al. Proc Natl Acad Sci U S A. 2007 Oct 9;104(41):16016-21. doi: 10.1073/pnas.0706977104. Epub 2007 Sep 27. Proc Natl Acad Sci U S A. 2007. PMID: 17901202 Free PMC article.
Evidence from central Mexico supporting the Younger Dryas extraterrestrial impact hypothesis.
Israde-Alcántara I, Bischoff JL, Domínguez-Vázquez G, Li HC, DeCarli PS, Bunch TE, Wittke JH, Weaver JC, Firestone RB, West A, Kennett JP, Mercer C, Xie S, Richman EK, Kinzie CR, Wolbach WS. Israde-Alcántara I, et al. Among authors: firestone rb. Proc Natl Acad Sci U S A. 2012 Mar 27;109(13):E738-47. doi: 10.1073/pnas.1110614109. Epub 2012 Mar 5. Proc Natl Acad Sci U S A. 2012. PMID: 22392980 Free PMC article.
Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago.
Bunch TE, Hermes RE, Moore AM, Kennett DJ, Weaver JC, Wittke JH, DeCarli PS, Bischoff JL, Hillman GC, Howard GA, Kimbel DR, Kletetschka G, Lipo CP, Sakai S, Revay Z, West A, Firestone RB, Kennett JP. Bunch TE, et al. Among authors: firestone rb. Proc Natl Acad Sci U S A. 2012 Jul 10;109(28):E1903-12. doi: 10.1073/pnas.1204453109. Epub 2012 Jun 18. Proc Natl Acad Sci U S A. 2012. PMID: 22711809 Free PMC article.
Evidence for deposition of 10 million tonnes of impact spherules across four continents 12,800 y ago.
Wittke JH, Weaver JC, Bunch TE, Kennett JP, Kennett DJ, Moore AM, Hillman GC, Tankersley KB, Goodyear AC, Moore CR, Daniel IR Jr, Ray JH, Lopinot NH, Ferraro D, Israde-Alcántara I, Bischoff JL, DeCarli PS, Hermes RE, Kloosterman JB, Revay Z, Howard GA, Kimbel DR, Kletetschka G, Nabelek L, Lipo CP, Sakai S, West A, Firestone RB. Wittke JH, et al. Among authors: firestone rb. Proc Natl Acad Sci U S A. 2013 Jun 4;110(23):E2088-97. doi: 10.1073/pnas.1301760110. Epub 2013 May 20. Proc Natl Acad Sci U S A. 2013. PMID: 23690611 Free PMC article.
Reply to van Hoesel et al.: Impact-related Younger Dryas boundary nanodiamonds from The Netherlands.
Wittke JH, Bunch TE, Kennett JP, Kennett DJ, Culleton BJ, Tankersley KB, Daniel IR Jr, Kloosterman JB, Kletetschka G, West A, Firestone RB. Wittke JH, et al. Among authors: firestone rb. Proc Natl Acad Sci U S A. 2013 Oct 8;110(41):E3897-8. doi: 10.1073/pnas.1313207110. Proc Natl Acad Sci U S A. 2013. PMID: 24244962 Free PMC article. No abstract available.
Bayesian chronological analyses consistent with synchronous age of 12,835-12,735 Cal B.P. for Younger Dryas boundary on four continents.
Kennett JP, Kennett DJ, Culleton BJ, Aura Tortosa JE, Bischoff JL, Bunch TE, Daniel IR Jr, Erlandson JM, Ferraro D, Firestone RB, Goodyear AC, Israde-Alcántara I, Johnson JR, Jordá Pardo JF, Kimbel DR, LeCompte MA, Lopinot NH, Mahaney WC, Moore AM, Moore CR, Ray JH, Stafford TW Jr, Tankersley KB, Wittke JH, Wolbach WS, West A. Kennett JP, et al. Among authors: firestone rb. Proc Natl Acad Sci U S A. 2015 Aug 11;112(32):E4344-53. doi: 10.1073/pnas.1507146112. Epub 2015 Jul 27. Proc Natl Acad Sci U S A. 2015. PMID: 26216981 Free PMC article.
Geochemical data reported by Paquay et al. do not refute Younger Dryas impact event.
Bunch TE, West A, Firestone RB, Kennett JP, Wittke JH, Kinzie CR, Wolbach WS. Bunch TE, et al. Among authors: firestone rb. Proc Natl Acad Sci U S A. 2010 Apr 13;107(15):E58; author repliy E59-60. doi: 10.1073/pnas.1001156107. Proc Natl Acad Sci U S A. 2010. PMID: 20388907 Free PMC article. No abstract available.
29 results