Chairs: Colin Goldblatt1, Benjamin W Johnson1 and Paul F Hoffman2, (1)University of Victoria, Victoria, BC, Canada(2)Organization Not Listed, Washington, DC, United States
Primary Conveners: Colin Goldblatt, University of Victoria, Victoria, BC, Canada
Co-conveners: Benjamin W Johnson, University of Victoria, Victoria, BC, Canada and Paul F Hoffman, University of Victoria, Victoria, BC, Canada; University of Victoria, Victoria, BC, Canada
OSPA Liaisons: Colin Goldblatt, University of Victoria, Victoria, BC, Canada
8:15 AM
Sulfur Isotope Trends in Archean Microbialite Facies Record Early Oxygen Production and Consumption
Aubrey Zerkle1, Nicolette Meyer1, Gareth Izon1, Simon Poulton2, James Farquhar3 and Mark Claire4, (1)University of St Andrews, St Andrews, United Kingdom, (2)University of Leeds, Leeds, United Kingdom, (3)University of Maryland College Park, College Park, MD, United States, (4)University of St Andrews, Department of Earth and Environmental Sciences, St Andrews, United Kingdom
8:30 AM
Evolution of the Proterozoic Earth System: Insights from the ∆17O Record of Sedimentary Sulfate Minerals
Peter William Crockford1, Justin A Hayles2, Galen P Halverson1, Andrey Bekker3, Robert Rainbird4 and Boswell A Wing1, (1)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, (2)Louisiana State Univ., Department of Geology & Geophysics, Baton Rouge, LA, United States, (3)University of California Riverside, Earth Sciences, Riverside, CA, United States, (4)Geological Survey of Canada, Ottawa, ON, Canada
8:45 AM
The nitrogen cycle in the aftermath of the mid-Cryogenian snowball Earth glaciation.
Christopher K Junium1, Matthew Hurtgen2, Susannah Porter3, Galen P Halverson4 and Leigh Ann Riedman3, (1)Syracuse University, Syracuse, NY, United States, (2)Northwestern University, Evanston, IL, United States, (3)University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, (4)McGill University, Montreal, QC, Canada
9:15 AM
Variation of Atmospheric Oxygen in the Phanerozoic Recorded By δ13c of Terrestrial Organic Matter
Karlis Muehlenbachs1, Ralf Tappert2, Ryan McKellar1, Alex P Wolfe1, Michelle Tappert1 and Martin Schoell3,4, (1)University of Alberta, Edmonton, AB, Canada, (2)University of Innsbruck, Institute of Mineralogy and Petrography, Innsbruck, Austria, (3)Retired, Washington, DC, United States, (4)GasConsult International Inc., Berkeley, CA, United States
9:45 AM
A Quarter Century Record of Stratospheric Sulfate Aerosol: implication for the past, present and future climates
Robina Shaheen1, M Abaunza1, Teresa Lou Jackson1, J McCabe2, J Savarino3 and Mark H Thiemens1, (1)University of California San Diego, Chemistry, La Jolla, CA, United States, (2)WPacific Ridge School, Carlsbad, CA, United States, (3)LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France
