Iron Isotope Fractionation Reveals Structural Change upon Microbial and Chemical Reduction of Nontronite NAu-1

Kai Liu1, Lingling Wu2, Bingjie Shi1, Christina Marie Smeaton3, Weiqiang Li4, Brian L Beard5, Clark Johnson5, Eric E Roden6 and Philippe Van Cappellen7, (1)University of Waterloo, Waterloo, ON, Canada, (2)University of Waterloo, Department of Earth and Environmental Sciences, Waterloo, ON, Canada, (3)University of Waterloo, Ecohydrology Research Group, Waterloo, ON, Canada, (4)Nanjing University, School of Earth Sciences and Engineering, Nanjing, China, (5)University of Wisconsin-Madison, Department of Geoscience, Madison, WI, United States, (6)University of Wisconsin Madison, Department of Geoscience, Madison, WI, United States, (7)University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada