ZIRCON U – Pb GEOCHRONOLOGY & TRACE ELEMENTS OF THE CHIXCULUB IMPACT STRUCTURE

STRUCTURE BASEMENT C. H. Ross1,2, D. F. Stockli1, C. Rasmussen2, S.P.S. Gulick1,2, S. J. de Graaff3,4, Ph. Claeys3, J. Zhao5, L. Xiao5,6, A. E. Pickersgill7,8, M. Schmieder9, D. A. Kring9, A. Wittmann10, J. V. Morgan11 and the IODP 364 Science Party 1Department of Geological Sciences, University of Texas at Austin, Austin, TX Contact: catherine.ross@utexas.edu, 2Institute for Geophysics, University of Texas at Austin, Austin, TX 3Analytical, Environmental and Geo-Chemistry, Vrije Universiteit Brussel, Belgium, 4Laboratoire G-Time, Université Libre de Bruxelles, Brussels, Belgium, 5State Key Laboratory of Geological Processes and Mineral Resources, Planetary Science Institute, School of Earth Sciences, China University of Geosciences, Wuhan, China 6State Key Laboratory of Space Science Institute, Lunar and Planetary Science, Macau University of Science and Technology, Taipa, Macau, China 7School of Geographical & Earth Sciences, University of Glasgow, Glasgow, U.K. 8NERC Argon Isotope Facility, Scottish Universities Environmental Research Centre (SUERC), Glasgow, UK 9Center for Lunar Science and Exploration, Lunar and Planetary Institute -USRA, Houston, TX 10Eyring Materials Center, Arizona State University Tempe, AZ 11Department of Earth Science and Engineering, Imperial College London, UK