Evidence for globally enhanced microbial activity during the immediate aftermath of the Cretaceous-Paleogene boundary impact
Timothy J Bralower1, Julie Cosmidis2, Peter J Heaney3, Lee Robert Kump4, Dustin T Harper5, Katherine Freeman1, Kliti Grice6, Shelby L Lyons7, Bettina Schaefer6, Si Chen8, Jens Wendler9, James C Zachos10, Christopher H House11, Chris Lowery12, Sean P S Gulick13 and Joanna V Morgan14, (1)Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States, (2)Pennsylvania State University, Department of Geosciences, University Park, PA, United States, (3)Penn State Univ, University Park, PA, United States, (4)The Pennsylvania State University, Department of Geosciences, University Park, United States, (5)University of California-Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (6)Curtin University, WA Organic and Isotope Geochemistry Centre, School of Earth and Planetary Sciences, Perth, WA, Australia, (7)Pennsylvania State University Main Campus, University Park, United States, (8)University of Cambridge, DAMTP, Cambridge, United Kingdom, (9)University of Bremen, Bremen, Germany, (10)Univ California Santa Cruz, Santa Cruz, United States, (11)Pennsylvania State University, Geosciences and Environmental Systems Institute, University Park, United States, (12)University of Texas at Austin, Austin, TX, United States, (13)University of Texas, Institute for Geophysics, Austin, United States, (14)Imperial College London, London, United Kingdom