Is Tridymite at Gale Crater Evidence for Silicic Volcanism on Mars?
Richard V Morris1, David T Vaniman2, Douglas W Ming1, Trevor G. Graff3, Robert T Downs4, Kim Fendrich4 and Stanley A Mertzman5, (1)NASA Johnson Space Center, Houston, TX, United States, (2)Planetary Science Institute Tucson, Tucson, AZ, United States, (3)Jacobs Technology, NASA Johnson Space Center, Houston, TX, United States, (4)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (5)Franklin and Marshall College, Department of Earth and Environment, Lancaster, PA, United States
