Did a Huge Impact Lead to the Cambrian Explosion? Astrobiology Magazine, October 14, 2013 http://www.astrobio.net/exclusive/5742/did-a-huge-impact-lead-to-the-cambrian-explosion
Young, G. M, 2013, Evolution of Earth's climatic system: Evidence from ice ages, isotopes, and impacts GSA Today. vol. 23, no. 10, pp. 4-10. http://www.geosociety.org/gsatoday/archive/23/10/abstract/i1052-5173-23-10-4.htm Text at: http://www.geosociety.org/gsatoday/archive/23/10/article/i1052-5173-23-10-4.htm http://www.geosociety.org/gsatoday/archive/23/10/article/i1052-5173-23-10-4.htm#toclink7 PDF file at: http://www.geosociety.org/gsatoday/archive/23/10/pdf/i1052-5173-23-10-4.pdf Yours, Paul H. ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
