1. NASA Ames Research Center, Moffett Field, CA 94035, USA.
2. NASA Johnson Space Center, Houston, TX 77058, USA.
3. Department of Geosciences, University of Arizona, Tucson, AZ 85721, USA.
4. Chesapeake Energy, Oklahoma City, OK 73154, USA.
5. Lunar and Planetary Institute, Houston, TX 77058, USA.
6. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
7. Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
8. Division of Geologic and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.
9. Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, UK.
10. Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA.
11. Earth, Atmospheric, and Planetary Sciences Department, Purdue University, West Lafayette, IN 47907, USA.
12. Laboratoire de Planétologie et Géodynamique, UMR6112, CNRS, Université Nantes, Université Angers, Nantes, France.
13. NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
14. Planetary Science Institute, Tucson, AZ 85719, USA.