Effect of pH and morphology on selenite oxidation by birnessite and associated isotopic fractionation

Pranjal Dwivedi1, Kathrin Schilling2, Naomi Wasserman3, Thomas M Johnson4 and Céline E Pallud1, (1)University of California Berkeley, Berkeley, CA, United States, (2)Columbia University, New York, NY, United States, (3)University of Illinois at Urbana Champaign, Urbana, IL, United States, (4)Univ of Illinois, Urbana, IL, United States