Dario Bilardello, University of Minnesota, Institute for Rock Magnetism, Minneapolis, MN, United States, Subir K Banerjee, University of Minnesota Twin Cities, Minneapolis, MN, United States, Michael Volk, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, Jennifer A Soltis, Pacific Northwest National Laboratory, Richland, WA, United States and Lee Penn, University of Minnesota Twin Cities, Chemistry, Minneapolis, MN, United States