International Ocean Discovery Program Expedition 364 Preliminary Report Chicxulub: drilling the K-Pg impact crater In collaboration with the International Continental Scientific Drilling Program Platform operations 5 April–31 May 2016 Onshore Science Party 21 September–15 October 2016 Sean Gulick, Joanna Morgan, Claire L. Mellett, and the Expedition 364 Scientists Publisher’s notes Core samples and the wider set of data from the science program covered in this report are under moratorium and accessible only to Science Party members until 15 October 2017. This publication was prepared by the European Consortium for Ocean Research Drilling (ECORD) Science Operator (ESO) and Texas A&M University (TAMU) as an account of work performed under the International Ocean Discovery Program (IODP). Funding for IODP is provided by the following international partners: National Science Foundation (NSF), United States Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan European Consortium for Ocean Research Drilling (ECORD) Ministry of Science and Technology (MOST), People’s Republic of China Korea Institute of Geoscience and Mineral Resources (KIGAM) Australia-New Zealand IODP Consortium (ANZIC) Ministry of Earth Sciences (MoES), India Coordination for Improvement of Higher Education Personnel (CAPES), Brazil Portions of this work may have been published in whole or in part in other IODP documents or publications. Disclaimer Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the participating agencies or TAMU. Copyright Except where otherwise noted, this work is licensed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/deed.en_US). Unrestricted use, distribution, and reproduction are permitted, provided the original author and source are credited. Citation Gulick, S., Morgan, J., Mellett, C.L., and the Expedition 364 Scientists, 2017. Expedition 364 Preliminary Report: Chicxulub: Drilling the K-Pg Impact Crater. International Ocean Discovery Program. http://dx.doi.org/10.14379/iodp.pr.364.2017 ISSN World Wide Web: 2372-9562 February 2017 S. Gulick et al. Expedition 364 Preliminary Report Expedition 364 participants Expedition 364 Science Party Joanna Morgan* Philippe Claeys Co-Chief Scientist/Geophysicist Impact Petrologist Department of Earth Science and Engineering Analytical, Environmental and Geo-Chemistry Imperial College London Vrije Universiteit Brussel London SW7 2AZ Pleinlaan 2 United Kingdom 1050 Brussels [email protected] Belgium [email protected] Sean Gulick* Co-Chief Scientist/Geophysicist Charles Cockell* Institute for Geophysics Microbiologist Jackson School of Geosciences Centre for Astrobiology University of Texas at Austin School of Physics and Astronomy Austin Texas 78758-4445 University of Edinburgh USA Edinburgh EH9 3FD [email protected] United Kingdom [email protected] Claire Mellett* Expedition Project Manager Marco Coolen* ECORD Science Operator Organic Geochemist/Microbiologist British Geological Survey Department of Chemistry The Lyell Centre Curtin University Research Avenue South Bentley WA 6102 Edinburgh EH14 4AP Australia United Kingdom [email protected] [email protected] Ludovic Ferrière Johanna Lofi* Impact Petrologist Petrophysics Staff Scientist Natural History Museum ECORD Science Operator Burgring 7 Géosciences Montpellier 1010 Vienna Université de Montpellier Austria 34095 Montpellier Cedex 05 [email protected] France Catalina Gebhardt [email protected] Physical Properties Specialist Elise Chenot Alfred Wegener Institute Helmholtz Centre of Polar and Marine Inorganic Geochemist Research Biogéosciences Laboratory 27568 Bremerhaven UMR 6282 CNRS Germany Université de Bourgogne-Franche Comté [email protected] 21000 Dijon Kazuhisa Goto France Sedimentologist [email protected] Tohoku University Gail Christeson* International Research Institute of Disaster Science Geophysicist Aoba 468-1 E303 Institute for Geophysics Sendai 980-0845 Jackson School of Geosciences Japan University of Texas at Austin [email protected] Austin Texas 78758-4445 USA [email protected] 3 S. Gulick et al. Expedition 364 Preliminary Report Heather Jones Auriol Rae* Paleontologist Geophysicist/Impact Petrologist The Pennsylvania State University Department of Earth Science and Engineering 336 Deike Building Imperial College London University Park PA 16802 London SW7 2AZ USA United Kingdom [email protected] [email protected] David Kring Cornelia Rasmussen Impact Petrologist Sedimentologist Lunar and Planetary Institute University of Utah 3600 Bay Area Boulevard Department of Geology and Geophysics Houston TX 77058 115 South 1460 East (FASB) USA Salt Lake City UT 84112 [email protected] USA [email protected] Christopher Lowery* Paleontologist Mario Rebolledo-Vieyra Institute for Geophysics Physical Properties Specialist Jackson School of Geosciences Unidad de Ciencias del Agua University of Texas at Austin Centro de Investigación Austin Texas 78758-4445 Científica de Yucatán, A.C. USA 77500 Cancún QROO [email protected] México [email protected] Rubén Ocampo-Torres Organic Geochemist Ulrich Riller Groupe de Physico-Chimie de l’Atmosphère Structural Geologist ICPEES Institut für Geologie UMR 7515 Université de Strasbourg/CNRS Universität Hamburg 1 Rue Blessig Bundesstrasse 55 67000 Strasbourg 20146 Hamburg France Germany [email protected] [email protected] Ligia Perez-Cruz* Honami Sato Geochemist Inorganic Geochemist Instituto de Geofísica Japan Agency for Marine-Earth Science and Technology Universidad Nacional Autónoma De México 2-15 Natsushima-cho Coyoacán Yokosuka-city Ciudad de México CP 04510 Kanagawa 237-0061 México Japan [email protected] [email protected] Annemarie E. Pickersgill Jan Smit Inorganic Geochemist Paleontologist School of Geographical & Earth Sciences Vrije Universiteit Amsterdam University of Glasgow Faculty of Earth and Life Sciences FALW Gregory Building, Lilybank Gardens de Boelelaan 1085 Glasgow G12 8QQ 1018HV Amsterdam United Kingdom Netherlands [email protected] [email protected] Michael Poelchau* Sonia Tikoo Structural Geologist Paleomagnetist University of Freiburg Rutgers University New Brunswick Geology Earth and Planetary Sciences Albertstraße 23b Piscataway Township NJ 08854 79104 Freiburg USA Germany [email protected] [email protected] 4 S. Gulick et al. Expedition 364 Preliminary Report Naotaka Tomioka Kosei Yamagachi Impact Petrologist Inorganic Geochemist Kochi Institute for Core Sample Research Department of Chemistry Japan Agency for Marine-Earth Science and Technology Toho University 200 Monobe Otsu Ota-ku Funabashi Nankoku Chiba 274-8510 Kochi 783-8502 Japan Japan [email protected] [email protected] Long Xiao Michael Whalen Metamorphic Petrologist Sedimentologist China University of Geosciences (Wuhan) University of Alaska Fairbanks School of Earth Sciences Geosciences Planetary Science Institute 900 Yukon Drive 388 Lumo Road Hongshan District Fairbanks AK 99775 China USA [email protected] [email protected] William Zylberman Axel Wittmann* Paleomagnetist Inorganic Geochemist Aix Marseille University Arizona State University CNRS IRD Coll France LeRoy Eyring Center for Solid State Science CEREGE Physical Sciences 13626 Aix-en-Provence Tempe AZ 85287-1704 France USA [email protected] [email protected] Additional participants Jaime Urrutia Fucugauchi Tim Bralower† Mexican Scientific Coordinator Paleontologist Institute of Geophysics The Pennsylvania State University UNAM Board of Governors 535 Deike Building National University of México University Park PA 16802 Coyoacan 04510 México City USA México [email protected] ECORD Science Operator (ESO) personnel and technical representatives David Smith Nataliya Denchik Offshore Operations Manager EPC Petrophysics Technician Ursula Röhl Jez Everest Onshore Operations Manager/ESO Laboratory and Curation ESO Drilling Coordinator Manager Annick Fehr Zeinab Adeyemi EPC Petrophysics Technician EPC Petrophysics Technician Thomas Frederichs Susanne Alfken ESO Paleomagnetist MARUM Micro-XRF Operator Patrizia Geprägs Vera B. Bender Assistant Laboratory Manager ESO Data Management Trainee Sophie Green Laurent Brun Expedition Project Manager (EPM) EPC Logging Engineer Gilles Henry Gareth Carter EPC Logging Engineer Expedition Project Manager (EPM) Grace Howe Carol Cotterill EPC Petrophysics Technician ESO Outreach Officer * Participated in shipboard and shore-based operations. † Participated in shipboard operations only. 5 S. Gulick et al. Expedition 364 Preliminary Report Brit Kokisch Laurence Philpott LECO Operator EPC Petrophysics Technician Martin Kölling Ulrike Prange MARUM Inorganic Geochemistry Laboratory Manager ESO Outreach Officer Holger Kuhlmann Connor Richardson Core Curator/Assistant Laboratory Manager ESO Drilling Coordinator Kevin Kurtz Luzie Schnieders Education Officer ESO Geochemist Erwan Le Ber Alyssa Stephens EPC Petrophysics Staff Scientist Publications Specialist (JRSO) Vera Lukies Graham Tulloch ESO Petrophysics Technician ESO Drilling Coordinator Barbara Matyssek Christoph Vogt Education Officer XRD Laboratory Manager Garry McGowan Hans-Joachim Wallrabe-Adams ESO Drilling Coordinator ESO Data Manager Mary Mowat Jenny Wendt ESO Database Manager MARUM Micro-XRF Operator Silvana Pape Thomas Westerhold