Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, United States; Marine, Earth, and Atmospheric Sciences, North Carolina State University Raleigh, Raleigh, NC, United States
NASA Goddard Space Flight Center, Greenbelt, MD, United States
Department of Astronomy, Mount Holyoke College, South Hadley, MA, United States
Southwest Research Institute, Boulder, CO, United States
Lamont -Doherty Earth Observatory, Palisades, NY, United States
Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, United States; Department of Geology, University of Georgia, Athens, GA, United States
Center for Earth and Planetary Studies, Smithsonian Institution, National Air and Space Museum, Washington, DC, United States; Planetary Science Institute Tucson, Tucson, AZ, United States
Brown University, Providence, RI, United States
Lamont-Doherty Earth Observatory, Palisades, NY, United States; Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, United States