Kohen Bauer

PhD Oceanography

ESB 3047

I am an earth systems scientist with backgrounds in geology, geochemistry and microbiology. My main research interests involves characterizing the biogeochemical cycles of some select elements (Cr and Fe), which yields information on how Earth’s surface conditions have evolved over geologic time. I do this by linking modern geochemical observations of rocks, sediments and seawater with conceptual computer models to develop detailed frameworks for the behavior of these elements over a wide range of environmental conditions. I then apply these frameworks to key intervals throughout Earth’s history in order to gain insight into the evolution of Earth’s biosphere, the history of oxygen in the ocean atmosphere system, mass extinction events, and climate change.



Previous Teaching Assistant Experience

University of British Columbia, Vancouver, British Columbia. (September 2014 – Present) Ph.D. Candidate in the Department of Earth Ocean and Atmospheric Sciences.

University of Toronto, Toronto, Ontario. (September 2012 – September 2013) Degree conferred: M.Sc Earth Science, Research Project: Carbon Cycling and Biogeochemical Modelling.

Queen’s University, Kingston, Ontario.
 (September 2007 - May 2011) Degree conferred: B.Sc. Hons. Geology


•Goldschmidt Conference. Paris, France. (August, 2017) Primary magnetite formation in ferruginous waters Kohen Bauer, Rachel Simister, Celine Michiels, Cythia Henny, Sean Crowe

•Towuti Drilling Project workshop. Bandung, Indonesia. (January, 2017) A 500kyr record of Fe-cycling in the Malili Lakes Kohen Bauer

•AGU. San Francisco, California, USA. (December, 2016) A Eukaryotic green alga, Picocystis, dominates Mono Lake, California in an algal bloom – Hints at cryptic oxygen cycle in euxinic waters Kohen Bauer, Katharine J. Thompson, Elise Tookmanian, Anna Waldeck, Geobiology 2016, William Berelson, Bradley Stevenson, Blake Stamps, Hope Johnson, Alex Sessions, Laurence Miller, Ronald Oremland, Michael Rosen, Frank Corsetti, John Spear

•Goldschmidt Conference. Yokohama, Japan. (June, 2016) Chromium Isotope Fractionation in Ferruginous Sediments Kohen Bauer, Bleuenn Gueguen, Roger Francois, Noah Planavsky, Sean Crowe

•Goldschmidt Conference. Yokohama, Japan. (June, 2016) Photosynthetic Oxidation of the Earth Before Cyanobacteria Sean Crowe, Kate Thompson, Paul Kenward, Kohen Bauer, Celine Michiels, Tina Gauger, Andreas Kappler, Christopher Reinhard, Kurt Konhauser

•Goldschmidt Conference. Prague, Czech Republic. (August, 2015) The Removal and Remobilization of Chromium in Hydrothermal Sediments Kohen Bauer, Simon Poulton, Roger Francois, Sean Crowe


•Goldschmidt Conference. Yokohama, Japan. (June, 2016) Biogeochemistry of ferruginous sediments from Lake Towuti, Indonesia Rachel Simiser, Kohen Bauer, Aurelle Vuillemin, David Fowle, Jim Russel, Jens Kallmeyer, Steven Hallam, Sean Crowe


Participant in the Agouron Institute International Geobiology course on Catalina Island (2016)

Selected to attend the 2nd annual African Discovery Camp for Research-based Training in Namibia (2015)

Awarded the 4 Year Fellowship of $18,000 value (2014)

Selected as part of an elite group to attend the Urbino Summer School in Paleoclimatology (2013)

Awarded the QE II - OGSST scholarship of $15,000 value (2012)

Selected as part of an elite group to participate at a practical seminar at the Bermuda Institute of Ocean Sciences (2011)

Awarded the Queens University Excellence Scholarship of $2,500 value (2007)


Bauer KW, Gueguen B, Cole DB, Francois R, Kallmeyer J, Planavsky NJ, Crowe SA. 2018. Chromium isotope fractionation in ferruginous sediments. Geochimica et Cosmochimica Acta. 223:198-215



Bauer KW, Zeebe RE, Wortmann UG. 2017. Quantifying the volcanic emissions which triggered Oceanic Anoxic Event 1a and their effect on ocean acidification. Sedimentology. 64:204-214