Kring, David A., Philippe Claeys, Sean P.S. Gulick, Joanna V. Morgan and Gareth S. Collins, 2017, Chicxulub and the Exploration of Large Peak-Ring Impact Craters through Scientific Drilling GSA Today Volume 27, Number 10, pp. 4-8. http://www.geosociety.org/gsatoday/science/G352A/article.htm http://www.geosociety.org/gsatoday/science/G352A/GSATG352A.pdf http://www.geosociety.org/gsatoday/archive/27/10/pdf/i1052-5173-27-10.pdf
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