PP54B:
The K–Pg Mass Extinction and the Chicxulub Impact Crater II


Submit an Abstract to this Session


Session ID#: 59594

Session Description:
An asteroid impact on the Yucatán platform 66 Ma caused the Cretaceous-Paleogene mass extinction, which is probably the only major event in Earth history that happened faster than modern anthropogenic climate change. Thus, the responses of the biosphere and the ocean-climate system to this rapid perturbation represent important partial analogs for modern changes in biodiversity and climate. Clear understanding of impact processes is fundamental to reconstructing the effects of the Chicxulub Impact, and collaboration between the paleo and impact communities is essential. Here, we aim to bring together Paleontologists, Paleoceanographers, Paleoclimatologists, Geophysicists, Modelers, Impact Petrologists, Paleomagnetists, and scientists from related fields to foster interdisciplinary collaboration to better understand the effects of the Chicxulub Impact. Contributions related to crater formation and modification, hydrothermal system development, global and regional environmental change, extinction, and ecosystem recovery are welcome.
Primary Convener:  Chris Lowery, University of Texas at Austin, Austin, TX, United States
Conveners:  Sonia Tikoo, Stanford University, Department of Geophysics, Stanford, United States, Gail Lynn Christeson, UTIG, Austin, United States and Timothy J Bralower, Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States
Primary Liaison:  Chris Lowery, University of Massachusetts, Amherst, MA, United States
Chairs:  Chris Lowery, University of Massachusetts, Amherst, MA, United States and Timothy J Bralower, Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States
OSPA Liaison:  Gail Lynn Christeson, UTIG, Austin, United States
Co-Organized with:
Paleoceanography and Paleoclimatology, and Planetary Sciences

Cross-Listed:
  • P - Planetary Sciences

Proposed Co-Organized Session with:
  • P - Planetary Sciences
Index Terms:

0410 Biodiversity [BIOGEOSCIENCES]
4901 Abrupt/rapid climate change [PALEOCEANOGRAPHY]
5420 Impact phenomena, cratering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6240 Meteorites and tektites [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Timescale of Events Around the Cretaceous-Paleogene Boundary: Links Between the Chicxulub Impact, Deccan Volcanism, and the Cretaceous-Paleogene Boundary (Invited) (391004)
Courtney Jean Sprain1, Paul R Renne2,3, William A. Clemens4, Gregory P. Wilson5, Stephanie M. Smith5, Donald L. Lofgren6, Stephen Self3, Loÿc Vanderkluysen7, Kanchan Pande8 and Tushar Mittal9, (1)University of Florida, Department of Geological Sciences, Ft Walton Beach, FL, United States, (2)Berkeley Geochronology Center, Berkeley, United States, (3)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (4)University of California Berkeley, Berkeley, United States, (5)University of Washington, Department of Biology, Seattle, United States, (6)Raymond M. Alf Museum of Paleontology, Claremont, United States, (7)Drexel University, Department of Biodiversity, Earth & Environmental Science, Philadelphia, PA, United States, (8)Indian Institute of Technology Bombay, Department of Earth Sciences, Mumbai, India, (9)Penn State, Earth and Planetary Science, University Park, United States
Comparing causes of impact winter at the Cretaceous-Paleogene boundary with an Earth system model (401534)
Clay Richard Tabor, University of Connecticut, Earth Sciences, Storrs, United States, Charles Bardeen, National Center for Atmospheric Research, Boulder, United States, Bette L Otto-Bliesner, NSF National Center for Atmospheric Research, Boulder, United States, Rolando R Garcia, Natl Ctr Atmospheric Research, Boulder, CO, United States and Brian Toon, University of Colorado at Boulder, ATOC/LASP, Boulder, CO, United States
Fire dynamics following the K/Pg mass extinction informed by polycyclic aromatic hydrocarbons (PAHs) and stable isotopes (403123)
Shelby L Lyons1, Timothy J Bralower2, Bettina Schaefer3, Kliti Grice3, Vivi Vajda4, Michael T Whalen5, Marco JL Coolen3, Joanna V Morgan6, Sean P S Gulick7,8, Katherine Freeman2 and expedition 364 scientists, (1)Pennsylvania State University Main Campus, University Park, PA, United States, (2)Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States, (3)Curtin University, WA Organic and Isotope Geochemistry Centre, School of Earth and Planetary Sciences, Perth, WA, Australia, (4)Swedish Museum of Natural History, Department of Palaeobiology, Stockholm, Sweden, (5)University of Alaska Fairbanks, Department of Geology and Geophysics, Fairbanks, AK, United States, (6)Imperial College London, London, United Kingdom, (7)University of Texas, Institute for Geophysics, Austin, United States, (8)The University of Texas at Austin, Institute for Geophysics & Department of Geological Sciences, Austin, United States
Isotope and Trace Element Profiles Across the K-Pg at Bass River, New Jersey, USA: Untangling Global Versus Local Control of Paleoenvironmental Conditions (437018)
Tracy M Quan1, Kenneth G Miller2, Selen Esmeray-Senlet3, Richard K Olsson3, James V Browning4 and Yair Rosenthal5, (1)Oklahoma State University Main Campus, Boone Pickens School of Geology, Stillwater, OK, United States, (2)Rutgers University New Brunswick, Earth & Planetary Sciences, New Brunswick, NJ, United States, (3)Rutgers University New Brunswick, New Brunswick, NJ, United States, (4)Rutgers University, Earth and Planetary Sciences, Piscataway, United States, (5)Rutgers University New Brunswick, New Brunswick, United States
Following the Phytoplankton: Tracking Ocean Ecosystem Recovery From the K/Pg Mass Extinction. (430183)
Sarah Alvarez, University of Bristol, Bristol, BS8, United Kingdom, Samantha Gibbs, National Oceangraphy Centre, Southampton, United Kingdom, Paul R Bown, University College London, London, United Kingdom, Jamie Devereux Wilson, University of Bristol, School of Earth Sciences, Bristol, United Kingdom and Andy Ridgwell, University of California, Riverside, Earth and Planetary Sciences, Riverside, United States
K/Pg Mass Extinction: Recovery of Planktonic Foraminifera Size and Diversity (368229)
Heather Birch, University of Bristol, School of Earth Sciences, Bristol, BS8, United Kingdom, Daniela N Schmidt, University of Bristol, School of Earth Sciences, Bristol, United Kingdom, Helen Katherine Coxall, Stockholm University, Department of Geological Sciences, Stockholm, Sweden, Paul N Pearson, University College London, School for Earth and Ocean Sciences, London, United Kingdom and Andy Ridgwell, University of California, Riverside, Earth and Planetary Sciences, Riverside, United States; University of California Riverside, Riverside, CA, United States
Why so slow? reconsidering mechanisms for the timing of post-extinction dynamics (Invited) (463871)
Pincelli M Hull, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States

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