1. Department of Geology and Environmental Geosciences College of Charleston Charleston SC USA
2. Department of Earth, Ocean and Atmospheric Science National High Magnetic Field Laboratory Florida State University Tallahassee FL USA
3. Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA USA
4. Department of Geological and Environmental Sciences Western Michigan University Kalamazoo MI USA
5. Department of Earth Sciences Universiteit Utrecht Utrecht The Netherlands
6. Department of Geosciences Virginia Polytechnic Institute and State University Blacksburg VA USA