Michael J Wolff¹, Mathieu Vincendon², Michael D Smith³, Robert Todd Clancy¹, Yves Langevin⁴, Raymond E Arvidson⁵ and J.-P. Bibring⁶, (1)Space Science Institute Boulder, Boulder, CO, United States, (2)IAS, Istitut d'atrophysque spaciale Université Paris-Sud, Université Paris-Saclay, Orsay, France, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Institut d'Astrophysique Spatiale, CNRS/Université Paris Saclay, Orsay Cedex, France, (5)Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, (6)Univ. de Paris Sud-Orsay, IAS, Orsay, France