Heather Rose Townsend¹, Fereidoun Rezanezhad¹, Christina Marie Smeaton², Merrin L Macrae³, Scott Smith⁴, Chris Thomas Parsons⁵ and Philippe Van Cappellen¹, (1)University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada, (2)Memorial University of Newfoundland, School of Science and the Environment, Corner Brook, NF, Canada, (3)University of Waterloo, Waterloo, ON, Canada, (4)Wilfrid Laurier University, Department of Chemistry and biochemistry, Waterloo, ON, Canada, (5)University of Waterloo, Department of Earth and Environmental Sciences, Waterloo, ON, Canada