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Environmental Geology & Geochemistry Seminar (EGGS) Lecture Series

Spring 2019

February 7

Jennifer Druhan, The University of Illinois at Urbana-Champaign, "Microbes, Minerals and Mixing: Revising Rayleigh models for isotope fractionation in natural porous media" (abstract)

February 14

Jacob Waldbauer, University of Chicago, "A Proteomic Window into the Viral Nitrogen Cycle" (abstract)

February 21

Anne-Sofie Ahm, Princeton University, "The Geochemical Record of a Snowball Earth"(abstract)

February 28

Jim Schiffbauer, University of Missouri, "Through the taphonomic lens: Witnessing the dawn of animals at the Ediacaran-Cambrian transition" (abstract)

March 7

Xin Sun, Princeton University, "Deciphering (An)aerobic Nitrite Oxidation in Oxygen Minimum Zones" (abstract)

March 14

Clara Fuchsman, University of Maryland, "Cyanobacteria and cyanophage populations fuel nitrogen loss in an oligotrophic oxygen deficient zone" (abstract)

March 28

Ryan Sullivan, Carnegie Mellon University, "Micro-geology in the atmosphere: the chemical evolution of aerosolized mineral phases and their role in ice nucleation" (abstract)

April 4

Brian Mailloux, Barnard College, Columbia University, "Paired RNA Radiocarbon and Sequencing Analyses from Aquifers in Colorado and Bangladesh" (abstract)

April 11

Morgan Schaller, Rensselaer Polytechnic Institute, "New constraints on ancient atmospheric oxygen concentrations and the Late Triassic rise of the first North American dinosaurs " (abstract)

April 18

Sarah Hurley, University of Colorado, Boulder, "Microbial biosignatures in deep time: physiological implications and evolutionary innovations" (abstract)

April 25

Joy Ward, University of Kansas, "Impacts of rising CO2 on plants: from the last glacial maximum through the future" (abstract)

May 2

Rachel Harris, Princeton University, “Hiding in plain sight? Tracing cryptic anaerobic methane oxidation to the cosmopolitan deep biosphere phylum “Candidatus Bathyarchaeota” (abstract)

May 9 David Hodell, Cambridge University, UK, "Persistent instability of glacial climate in the North Atlantic for the Past 1.5 Million Years" (abstract)

All seminars are held on Thursday at 12:30 p.m. in Guyot 220 unless otherwise noted.

Questions or comments? Contact Ashley Maloney ( or Jared Wilmoth (